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HomeMy WebLinkAbout4/30/14 specs-addendums 8801 PRAIRIE VIEW LANE SW, SUITE 200 CEDAR RAPIDS, IOWA52404-4850 TEL: 319.841.1944FAX: 319.841.1949 ADDENDUM #1 DATE: February 27, 2014 PROJECT:City of Iowa City –City Hall Police and Fire Department HVAC Replacement Project 2014 The following items are to be corrected, deleted from or added to the Contract documents for subject project and become a part of said documents. MECHANICAL PART I -SPECIFICATIONS ITEM 1 –SECTION23 3600 A.Add section 23 3600 Air Terminal Units attached at the end of this addendum. PART II -DRAWINGS ITEM 1 –DRAWING T1–TITLE SHEET A.Project Notes: Scope of Work note 2 add: ‘Coordinate with fire department to schedule move out of emergency vehicles prior to placement of craneand shutdown of street.’ B.Project Notes: Scope of Work note 3 add: ‘Scope of roof protection shall include any surface intended to be walked upon more than once.’ C.Add Project Note: Scope of Work note4 reading: ‘The roof over the fire station apparatus bay where the rooftop units are located has no current warranty. Original warranty was through Firestone.Elevation of apparatus bay roof is approximately 15’above finished floor.’ ITEM 2 –DRAWING HD1.0–HVAC DEMOLITION PLAN A.Add General HVAC Demolition Note 10 reading‘For all demolition work in apparatus bay, coordinate move out of emergency vehicles with fire department.’ ITEM 3 –DRAWING H5.1–SCHEDULES AND DETAILS A.HVAC Notes, note H-3: add ‘Prior to installing roofcurb, seal penetrations left from demolished hot water pipes. Cover holes with sheet metal to match roof deck and screw to deck. Seal perimeter of sheet with caulk.’ B.HVAC Notes, note H-4: add ‘No startup or controls integration is required for humidifier unit.’ END OF ADDENDUM #1 DESIGN ENGINEERS, P.C.By:Tim Lentz Cedar Rapids, Iowa TRL c: m:\ic city hall hvac upgrade -14006\phase 1 -police and fire rtus -14006a1\construction administration\de addenda -working 1 documents\addn#1-02-27-2014.doc SECTION 23 3600-AIR TERMINAL UNITS PART 1 -GENERAL 1.01RELATED WORK A.The requirements of Division 00 -Procurement and Contracting Requirements, Division 01 - General Requirements and Section 23 0010 -HVAC General Provisions are applicable to work required of this Section. 1.02DESCRIPTION OF WORK A.Provide material, equipment, labor and supervision necessary to install air terminal units as required by the drawings and this section. 1.03TERMINAL UNITS A.Air Terminal units shall include the following: 1.VAV Boxes 1.04SUBMITTALS A.Submit shop drawings and/or catalog cuts showing technical data necessary to evaluate the equipment, to include color charts, dimensions, wiring diagrams, performance data and other descriptive data necessary to describe fully the air terminal units. PART 2 -PRODUCTS 2.01ACCEPTABLE MANUFACTURERS A.VAV Boxes 1.Carnes 2.Titus 3.E.H. Price 4.Metal Aire 5.Krueger 6.Nailor 7.Enviro-Tec 2.02VAV BOXES A.General: Ceiling mounted variable air volume supply air or exhaustcontrol terminals for connection to single, medium pressure duct, central air systems, with heating coils (where scheduled)and air flow measuring station. Direct digital controls and actuation to be provided by DDC Controls Contractor. B.Casing: 22-gauge galvanized steelhousing, mechanically sealed and gasketed. Provided with round stub inlet duct connection and S and drive outlet duct connection. Hanger holes to be provided on four corners for installation. Leak rate not greater than two percent at 0.5-inch wg. for sizes up through 14 inch and not greater than threepercent for sizes 16 inch and above. C.Lining: Fiber free foam insulation system which complies with NFPA 90A and UL 181. Fiber free foam insulation thickness to be a minimum of 3/4" (R value = 3). D.Control Damper: 1.Locate air volume damper assembly inside unit casing. Construct from extruded aluminum or 20 gauge galvanized steel componentswith peripheral gasket and solid steel shaft, pivoted in self-lubricating bearings. AIR TERMINAL UNITS 23 3600-1 2.Air volume control damper shall be factory calibrated assembly consisting of damper and damper shaft extension for connection to externally mounted control actuator. 3.Leakage rate not greater than 2% of nominal CFM at3 in. w.g. inlet static pressure when tested in accordance with ASHRAE 130. E.Air Flow Sensor: Eight point flow sensing ring capable of sensing true airflow to within +/-10 percent regardless of inlet duct connection. Sensor includes pressure taps on inlet cone of air valve to provide the velocity signal for volume regulator and to measure airflow through the valve when used in conjunction with calibration chart provided on unit. F.Automatic Flow Controller: To be a thermostatically reset velocity controller which provides constant delivery air control within +/-5 percent of rated flow down to 25 percent of unit rated cfm, independent of changes in system static pressure, with 1-1/2 diameters of straight duct at the unit inlet. Control to within +/-10 percent to be obtained with any inlet duct connection. Factory calibrated, field adjustable setpoints shall be provided to set maximum and minimum cfm. G.Reheat Coils (where applicable for supply air units): Coils shall have capacities and ratings as scheduled on the drawings. Coils shall consist of seamless copper tubes mechanically bonded to aluminum fins. Maximum working pressure 125 psig and test pressure of 300 psig. H.Provide terminal unit with control enclosure. I.VAV terminal unit with hot water reheat coilcoils shall include a factory installed coil access door upstream of the coil. Access door shall belined with the same material installed in the case and shall have cam locks or snap latches; screw fasteners and non-insulated doors are not acceptable. Access doors shall be a minimum of 4” x 6-1/2”. PART 3 -EXECUTION 3.01Install units and make duct and pipingconnection as indicated on drawings. 3.02Install shut-off cocks, balancing cocks, air vents, control valves and devices as required for complete installation. 3.03Controls: Install devices furnished by manufacturer but not specified to be factory-mounted. Furnish copy of manufacturer's wiring diagram submittal to Electrical Contractor for power wiring. A.Verify that wiring installation is in accordance with manufacturer's submittal and installation requirements of Division-26 sections. Do not proceed with equipment start-up until wiring installation is acceptable to equipment installer. 3.04Provide duct access upstream and downstream of VAV terminal unit reheat coils.Access door upstream of coil shall be factory installed. Access door downstream of coil shall be provided and installed by the HVAC Contractor.Square access door downstream of coil shall be 2” smaller than duct width dimension or minimum of 6” x 6”. Door shall be insulated and include cam locks or snap latches. Contractor shall coordinate installation of VAV terminal unit with other trades to maintain service access to unit controls and access doors. Where failure to do so results in blockedaccess door(s), Contractor shall provide access door(s) in the side of the unit. END OF SECTION 23 3600 AIR TERMINAL UNITS 23 3600-2 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 SECTION 00 0110 - TABLE OF CONTENTS DIVISION 00 - Procurement and Contracting Requirements 00 0107 Seals & Signatures 00 0110 Table of Contents 00 0120 List of Drawings NP-1 Notice of Public Hearing NTB-1 Notice to Bidders NB-1 Note to Bidders IB-1 Instruction to Bidders PS-1 Pre-Bid Substitutions FP-1 Form of Proposal BB-1 Bid Bond AG-1 Form of Agreement PB-1 Performance and Payment Bond CC-1 Contract Compliance (Anti-discrimination Requirements) GC-1 General Conditions SC-1 Supplementary Conditions R-1 Restriction on Non-resident Bidding on Non-federal-aid Projects DIVISION 01 - General Requirements 01 1000 Summary of Work 01 2600 Contract Modification Procedures 01 2900 Payment Procedures 01 3100 Project Management and Coordination 01 3300 Submittal Procedures 01 5000 Temporary Facilities 01 6000 Product Requirements 01 7050 Contract Closeout 01 7200 Project Record Documents 01 7329 Cutting and Patching 01 7823 Operation and Maintenance Data 01 7900 Demonstration and Training DIVISION 23 - Heating, Ventilating, and Air-Conditioning 23 0010 HVAC General Provisions TABLE OF CONTENTS 00 0110-1 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 23 0500 Common Work Results for HVAC 23 0513 Common Motor Requirements for HVAC Equipment 23 0593 Testing, Adjusting and Balancing for HVAC 23 0700 HVAC Insulation 23 0900 Instrumentation and Control for HVAC 23 3113 Metal Ducts 23 7400 Packaged Outdoor HVAC Equipment DIVISION 26 - Electrical 26 0010 Electrical General Provisions 26 0500 Common Work Results for Electrical 26 0519 Low-Voltage Electrical Power Conductors and Cables 26 0526 Grounding and Bonding for Electrical Systems 26 0529 Hangers and Supports for Electrical Systems 26 0533 Raceway and Boxes for Electrical Systems 26 2815 Motor and Service Disconnects 26 2816 Enclosed Switches and Circuit Breakers END OF SECTION 00 0110 TABLE OF CONTENTS 00 0110-2 NOTICE OF PUBLIC HEARING ON PLANS, SPECIFICATIONS, FORM OF CONTRACT AND ESTIMATED COST FOR CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 IN THE CITY OF IOWA CITY, IOWA TO ALL TAXPAYERS OF THE CITY OF IOWA CITY, IOWA, AND TO OTHER INTERESTED PERSONS: Public notice is hereby given that the City Council of the City duct a public hearing on plans, specifications, form of contract and estimatedstruction of the CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 in said City at 7 p.m. on the th 18 day of February, 2014, said meeting to be held in the Emma J. Harvat Hall in City Hall in said City, or if said meeting is cancelled, at the next meeting of the City Council thereafter as posted by the City Clerk. Said plans, specifications, form of contract and estimated cost in City Hall in Iowa City, Iowa, and may be inspected by any interested persons. Any interested persons may appear at said meeting of the City Council f objections to and comments concerning said plans, specifications, contract or the cost of making said improvement. This notice is given by order of the City Council of the City of Iowa City, Iowa and as provided by law. MARIAN K. KARR, CITY CLERK pweng\masters\nph.doc 9/99 R-1 NOTICE TO BIDDERS CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 20 Sealed proposals will be received by the City Clerk of the City of Iowa City, Iowa, before 2:30 P.M. on the rd 3 day of March, 2014. Sealed proposals will be opened immediately thereafter by the City Engineer or designee. Bids submitted by fax machine shall not be deemed a "sealed bid" for pur Proposals received after this deadline will be returned to the bProposals will be acted upon by the City Council at a meeting to be held in the Emma J. Harva4th day of March, 2014, or at a special meeting called for that purpose. The Project will involve the following: The removal and replacement of two McQuay rooftop HVAC units serving the first and second level of the Police Department area and serving the second level of the F provisions to address pressurization issues in the Police and Fillation of an open platform networked digital controls for all new equipment a terminal boxes associated with the replaced HVAC units. There will be a recommended pre-bid meeting held on site, at City Hall, starting at 10:30 a.m. in the Helling Conference room at 410 East Washington Street, on Tuesday, Febru All work is to be done in strict compliance with the plans and stions prepared by Design Engineers, of Cedar Rapids, Iowa, which have heretofore been approved by the City Council, and are on file for publ examination in the Office of the City Clerk. sealed Each proposal shall be completed on a form furnished by the City envelope, separate from the one containing the proposal, by a bid bond executed by a corporation authorized to contract as a surety in the State of Iowa, in the made payable to the TREASURER OF THE CITY OF IOWA CITY, IOWA, and shall eited to the City of Iowa City in the event the successful bidder fails to enter into a contract within ten (10) calend the contract and maintenance of said Project, if required, pursuant to the provisions of this notice and the other contract documents. Bid bonds of the lowest two or more bidders may be retain exceed fifteen (15) calendar days following award of the contract, or until rejection is made. Other bid bonds will be returned after the canvass and tabulation of bids is completed and reported to the City Council. The successful bidder will be required to furnish a bond in an aone hundred percent (100%) of the contract price, said bond to be issued by a responsible surety approved by the City, and shall guarantee the prompt payment of all materials and labor, and als all claims and damages of any kind caused directly or indirectly by the operation also guarantee the maintenance of the improvement for a period of one (1 ) year(s) from and after its com- pletion and formal acceptance by the City Council. The following limitations shall apply to this Project: Specified Completion Date: May 4, 2014 Liquidated Damages: $861.00 per day The plans, specifications and proposed contract documents may be examined at the office of the City Clerk. Copies of said plans and specifications and form of proposal blanks may be secured at Technigraphics, a division of Rapids Reproductions located at 415 Highland Ave, Suite 100, Iowa City, Iowa 52240, Phone :319-354-5950 Fax:319-354-8973 Toll-Free 800-779-0093 by bona fide bidders. A $ 25.00 refundable fee is required for each set of plans and specificati interested persons. The fee shall be in the form of a check, mad returned if the plans are returned in unmarked and reusable condition within 15 days of separate and nonrefundable $10.00 shipping and handling fee will apply to plans that are sent thro mail. . Prospective bidders are advised that the City of Iowa City desires to employ minority contractors and subcontractors on City projects. A listing of minority contractotained from the Iowa Department of Economic Development at (515) 242-4721 and the Iowa Department of Transportation Contracts Office at (515) 239-1422. Bidders shall list on the Form of Proposal the names of persons, whom the bidder intends to subcontract. This list shall include the type of work and approximate amount(s). The Contractor awarded the contract shall submit a list on the Form of subcontractors, together with quantities, unit prices and extended dollar amounts. By virtue of statutory authority, preference must be given to products and provisions grown and coal produced within the State of Iowa, and to Iowa domestic labor, tquired under Iowa Statutes. The Iowa reciprocal resident bidder preference law applies to this Project. The City reserves the right to reject any or all proposals, and also reserves the right to waive tecalities and irregularities. Published upon order of the City Council of Iowa City, Iowa. MARIAN K. KARR, CITY CLERK Pweng/masters/noticetobidders.doc Design Engineers C/O Tim Lentz 8801 Prairie View Lane SW Suite 200 Cedar Rapids, IA 52404 SECTION I- GENERAL POLICY STATEMENT 4. Prior to execution of the contract, the completed and signed Assurance of Compliance (located on pages CC-2 and CC-3) or other required material must be received and approved by the City. CC-1 SECTION II-ASSURANCE OF COMPLIANCE The following sets forth the minimum requirements of a satisfactory Equal Employment Opportunity PLEASE RETURN PAGES 2 THROUGH 3 OF THIS Program which will be reviewed for acceptability. SECTION TO THE CONTRACTING DEPARTMENT PRIOR TO THE EXECUTION OF THE CONTRACT. With respect to the performance of this contract, the contractor, consultant or vendor agrees as follows: (For the purposes of these minimum requirements, "contracto· shall include consultants and vendors.) 1. The contractor will not discriminate against any employee or applicant for employment and will take affirmative efforts to ensure applicants and employees are treated during employment without regard to their race, color, creed, religion, national origin, sex, sexual orientation, gender identity, disability, marital status, and age. Such efforts shall include, but not be limited to the following: employment, promotion, demotion, or transfer; recruitment or recruitment advertising; layoff or termination; rates of pay or other forms of compensation; and selection for training, including apprenticeship. 2. The contractor will, in all solicitations or advertisements for employees placed by or on behalf of the contractor; state that it is an equal opportunity employer. Note: Contracts that are federally funded are subject to Executive Order No. 11246, as amended, and the regulations (see generally 29 U.S.C.§ 1608 et seq.) and relevant orders of the U.S. Secretary of Labor. The Secretary of Labor, and not the City, enforces said regulations and orders. Provide a copy of your written Equal Employment Opportunity policy statement. Where is this statement posted? What is the name, telephone number and address of your business' Equal Employment Opportunity Officer? Address Phone number The undersigned agrees to display, in conspicuous places at the work site, all posters required by federal and state law for the duration of the contract. NOTE: The City can provide assistance in obtaining the necessary posters. CC-2 How does your business currently inform applicants, employees, and recruitment sources (including unions) that you are an Equal Employment Opportunity employer? The above responses to questions 1 through 6 are true and correctly reflect our Equal Employment Opportunity policies. CC-3 SECTION Ill -SUGGESTED STEPS TO ASSURE EQUAL EMPLOYMENT OPPORTUNITIES 4. (g) (h) Improve hiring and selection procedures and use non-biased promotion, transfer and CC-4 Attached for your information is a copy of Section 2 3 1 of the Iowa City Code of Ordinances which prohibits certain discriminatory practices in employment as well as a sample policy. Please note that the protected characteristics include some not mandated for protection by Federal or State law. As a contractor, consultant or vendor doing business with the City of Iowa City you are required to abide by the provisions of the local ordinance in conjunction with your performance under a contract with the City. CC-5 SAMPLE: EQUAL EMPLOYMENT OPPORTUNITY POLICY To all employees of _ All employees are encouraged to refer minority and women applicants and applicants with disabilities for employment. CC-6 Sterling Codifiers, Inc. C. It shall be unlawful for any employer, employment agency, labor organization or the employees or members thereof to directly or indirectly advertise or in any other manner indicate or publicize that individuals are unwelcome, objectionable or not solicited for employment or membership because of age, color, creed, disability, gender identity, marital status, national origin, race, religion, sex or sexual orientation. (Ord. 95-3697, 11-7-1995) 2. agents or members and an employee or prospective employee concerning employment, pay or benefits to an employee or prospective employee in return for taking a test for the presence of the antibody to the human immunodeficiency virus, is prohibited. The prohibitions of this subsection do not apply if the state epidemiologist determines and the director of public health declares through the utilization of guidelines established by the center for disease control of the United States department of health and human services, that a person with a condition related to acquired immune deficiency syndrome poses a significant risk of transmission of the human immunodeficiency virus to other persons in a specific occupation. Sterling Codifiers, Inc. A state or federal program designed to benefit a specific age classification which serves a bona fide public purpose. (Ord. 94-3647, 11-8-1994) The employment on the basis of disability in those certain instances where presence of disability is a bona fide occupational qualification reasonably necessary to the normal operation of a particular business or enterprise. The bona fide occupational qualification shall be interpreted narrowly. (Ord. 03-4105, 12-16-2003) CC-8 CITY OF IOWA CITY SUPPLEMENTARY CONDITIONS CITY OF IOWA CITY PART 1 - GENERAL 1.1 INTRODUCTION A. The following supplements modify the "General Conditions of the Document A201-2007. Where a portion of the General Conditions is modified or deleted by these Supplementary Conditions, the unaltered portions of the Ge in effect. B. Terms used in these Supplementary Conditions will have meanings General Conditions. Additional terms used in these Supplementary Condit meanings indicated below, which are applicable to both the singu C. Deletions from the AIA A201 are indicated as strike-out and additions to the AIA A201 are indicated as italic". D. The OWNER and CONTRACTOR may exercise such rights or remedies as either may otherwise have under the Contract Documents or by Law or Regulations in respect to any dispute. Disputes shall be resolved by legal or equitable proceedings in a court of appropriate jurisdiction. Under no circumstances shall binding arbitration be required as to any dispute arising between the parties or under the Contract Documents. E. Delete all references to mediation and arbitration in their entirety. 1.2 ARTICLE 1 - GENERAL PROVISIONS Contract Documents A. Add the following paragraph 1.1.1.1 to read as follows: 1.1.1.1 Any reference within the Contract Documents of the Agreement between Owner and Contractor should be substituted with of the Form of Agreement between Owner and Contractor (hereinafter the Agreement). The Form of Agreement is listed as AG in the project manual. B. Change paragraph 1.1.3 to read as follows: 1.1.3 The term "Work" means the construction and services required by Documents, whether completed or partially completed, and includes all other labor, tools, materials, equipment, transportation, services, taxes, insurance and all other services provided or to be provided by the Contractor to fulfill the Cont constitute the whole or a part of the Project. The Contractor shall provide all work and materials required by which any part of the Contract Documents require him to provide. C. Add the following paragraph 1.2.4: 1.2.4 Sections of Division 1 - General Requirements, govern the execution of all sections of the specifications. 1.3 ARTICLE 2 - OWNER A. Change paragraph 2.4 to read as follows: 2.4 If the Contractor defaults or neglects to carry out the Work in accordance with the Contract Documents and fails within a seven-day period after receipt of written notice from the Owner to commence and continue correction of such default or neg promptness, the Owner may without prejudice to other remedies the Owner may have, corr such deficiencies. In such case an appropriate Change Order shall be issued deducting the SUPPLEMENTARY CONDITIONS DOCUMENT SC-1 Owner may deduct from payments then or thereafter due the Contractor the reasonable entire cost of correcting such deficiencies, including compensation for the Architect's additional services and expenses and heating, engineering, accounting, consulting services and attorneys' fees and expenses made necessary by such default, neglect, or failure. Such action by the Owner and amounts charged to the Contractor are both subject to prior approval of the Architect. If payments then or thereafter due the Contractor are not sufficient to cover such amounts, the Contractor shall pay the difference to the Owner. The Owner's actions pursuant to this Subparagraph shall not operate as a release of any obligation of a surety. 1.4 ARTICLE 3 - CONTRACTOR A. Change paragraphs 3.2.2 to read as follows: 3.2.2 Because the Contract Documents are complementary, the Contractor shall, before starting each portion of the Work, carefully study and compare the various Contract Documents relative to that portion of the Work, as well as the information Section 2.2.3, shall take field measurements of any existing conditions related the Work, and shall observe any conditions at the site affecting it. These obligations are for the purpose of facilitating coordination and construction by the Contractor and are not for the purpose of discovering errors, omissions, or inconsistencies in however, the Contractor shall promptly report to the Architect any errors, inconsistencies or omissions discovered by or made known to the Contractor as a request for information form as the Architect may require. Cont specifically provided in the Contract Documents. The Contractor shall not be liable to the Owner or Architect for damage resulting from errors, inconsistencies or omissions in the Contract Documents unless the Contractor recognized such error, inconsist knowingly failed to report it to the Architect. If the Contractor perform knowing it involves involving a recognized error, inconsistency or omission in the Contract Documents without such notice to the Architect, the Contractor sappropriate responsibility for such performance and shall bear an appropriate amount of the attributable all costs for correction. The Contractor shall perform no portion of the Work at any time without Contract Documents or, where required, approved Shop Drawings, Product Data or Samples for such portion of the Work. B. Change paragraph 3.3.2 to read as follows: 3.3.2 The Contractor shall be responsible to the Owner for acts and om Contractor's employees, Subcontractors, Sub-subcontractors, vendors, materialmen material providers and suppliers and their agents and employees, and other persons performing portions of the Work under a contract with the Contra or any of its Subcontractors. C. Add the following 3.3.4: 3.3.4 Contractor shall maintain a qualified and responsible person available 24 hours per day, seven days per week to respond to emergencies which may occur after hours. Contractor shall provide to Owner and Architect the phone number and/or paging service of this individual. D. Change paragraph 3.4.1 to read as follows: 3.4.1 Unless otherwise provided in the Contract Documents, the Contractor sha pay for labor, materials, equipment, tools, construction equipme utilities, transportation, storage, parking and other facilities and services necessary for proper execution and completion of the Work, whether temporary or perma incorporated or to be incorporated in the Work. Should the Contract Documents require work to be performed after regular working hours or should the Contractor elect to perform work after regular hours, the additional cost of such work shall be borne by the SUPPLEMENTARY CONDITIONS DOCUMENT SC-2 Contractor. E. Add the following paragraphs 3.4.4 through 3.4.6: 3.4.4 Whenever any provisions of the Contract conflict with any agreements or regulation of any kind in force among members of any trade association, unions or councils, which regulate what work shall be included in the work of particular trades, the Contractor shall make all necessary arrangements to reconcile any such conflict without delay or cost to the Owner and without recourse to the Architect or the Owner. 3.4.5 After the Contract has been executed, the Owner and the Architect will consider a formal request for the substitution products in place of those specified only under the conditions set forth in Section 01 60 00 - Post Bid Substitutions. 3.4.6 By making requests for substitutions based on Subparagraph 3.4.4 above, the Contractor: .1 represents that the Contractor has personally investigated the proposed product and determined that it is equal or superior in all respects to that specified. .2 represents that the Contractor will provide the same warranty for the substitution that the Contractor would for that specified. .3 certifies that the cost data presented is complete and includes all related costs under this Contract except the Architect's redesign costs, and waives all claims for additional costs related to the substitution which subsequently become apparent; and .4 will coordinate the installation of the accepted substitute, making such changes as may be required for the Work to be complete in all respects. .5 will adhere to the contract schedule F. Change paragraphs 3.5 to read as follows: 3.5 The Contractor warrants to the Owner and Architect that materials and equipment furnished under the Contract will be of good quality and new unl require or permit otherwise. The Contractor further warrants thathe Work will conform with the requirements of the Contract Documents and will be free from defects, except for those inherent in the quality of the Work the Contract Documents require or per. Work, materials or equipment not conforming to these requirements may be considered defective warranty excludes remedy for damage or defect caused by abuse, alterations to the Work not executed by the Contractor, improper or insufficient maintenance wear and tear and normal usage. If required by the Architect, the Contractor shall furnish satisfactory evidence as to the kind and quality of materials an G. Changeparagraph 3.6.1 to read as follows: The Contractor shall pay sales, consumer, use and similar taxes Contractor that are legally enacted when bids are received or negotiations con not yet effective or merely scheduled to go into effect. Contractors and approved subcontractors will be provided a Sales Tax Exemption Certificate to purchase building materials, supplies, or equipment in the performance of the contract. The Contractor shall submit the information necessary for the certificates to be issued. All such information for said certificates shall be submitted to the City/Owner together in one submission. H. Change paragraph 3.7.2 to read as follows: 3.7.2 The Contractor shall comply perform the Work in compliance with and give notices required by applicable laws, statutes, ordinances, codes, rules, regulations and lawful orders of public authorities bearing on performance of the Work. I. Change paragraph 3.7.3 to read as follows: 3.7.3 If the Contractor performs Work knowing it to be contrary to applicable laws, statutes, ordinances, codes, rules and regulations, or lawful orders of public authorities, the Contractor shall assume full appropriate responsibility for such Work and shall bear the costs attributable to SUPPLEMENTARY CONDITIONS DOCUMENT SC-3 the correction and expenses of correcting or replacing such Work. J. Change paragraph 3.7.4 to read as follows: 3.7.4 Concealed or Unknown Conditions. If the Contractor encounters condi are 1) subsurface or otherwise concealed physical conditions tha indicated in the Contract Documents or 2) unknown physical condin unusual nature that differ materially from those ordinarily found to exist and gener construction activities of the character provided for in the Contract Documen shall promptly provide notice to the Owner and the Architect before conditions are disturbed and in no event later than the next business day 21 days after first observance of the conditions. The Architect will promptly investigate such conditions and, if differ m for performance of any part of the work, will recommend an equit Sum or Contract Time, or both. If the Architect determines that nditions at the site are not materially different from those indicated in the Contract Docume terms of the Contract is justified, the Architect shall promptly notify the Owner and Contractor in writing, stating the reasons. If recommendation, that party pay proceed as provided in Article 15 J. Change paragraph 3.11 to read as follows: 3.11 The Contractor shall maintain at the site for the Owner, one copy ofngs, Specifications, Addenda, Change Orders and other Modifications, in good order and currently to indicate field changes and selections made during construction, and one copy of all approved Shop Drawings, MSDS Sheets, Product Data, Samples and similar required submittals. These shall be available to the Architect and shall submittal to the Owner upon completion of the Work as a record of the Work as constructed. K. Change paragraph 3.13 to read as follows: 3.13 The Contractor shall confine operations at the site to areapplicable laws, statutes, ordinances, codes, rules and regulations, and lawful orders of public authorand the Contract Documents and shall not unreasonably encumber the site with materials or equipment. The Contractor acknowledges that the property on which the Project and Work are located may be occupied and in use by the Owner during the execution of the Work. The Contractor shall perform and coordinate its work in such a manner that the portions of the property occupied and in use will not be encumbered or the use interfered with or interrupted. L. Change paragraph 3.17 to read as follows: 3.17 The Contractor shall pay all royalties and license fees. The Contractor shall defend suits or claims for infringement of patent rights and shall hold the Owne loss on account thereof, but shall not be responsible for such d design, process or product of a particular manufacturer or manufacturers is required by the Contract Documents, or where the copyright violations are contained in Drawings, S or other documents prepared by the Owner or Architect. However, if the Contractor has reason to believe that the required design, process or product is an infringement ocopyright or patent, the Contractor shall be responsible for such loss unless such in the Architect and the Owner in writing. M. Change paragraphs 3.18.1 to read as follows: 3.18.1 To the fullest extent permitted by law, the Contractor shall indemnify, defend and hold harmless the Owner, Architect, Architect's consultants, and agen them from and against claims, damages, losses and expenses, including, but not limited to attorneys' fees, arising out of or resulting from performance of claim, damage, loss or expense is attributable to bodily injury, injury to or destruction of tangible property (other than the Work itself), but only to the extent caused in whole or in part by intentional or negligent acts or omissions of the Contractor, a SUPPLEMENTARY CONDITIONS DOCUMENT SC-4 Subcontractor, anyone directly or indirectly employed by them ory may be liable, regardless of whether or not such claim, damage, loss or expen part by a party indemnified hereunder. Such obligation shall not be construed to negate, abridge, or reduce other rights or obligations of indemnity that would otherwise exist as to a party or person described in this Paragraph 3.18. Nothing in the foregoing Paragraph 3.18.1 is intended or shall be deemed to constitute an indemnification by the Contractor against the negligence of any of the parties to be otherwise indemnified pursuant to Paragraph 3.18.1. N. Change paragraph 3.18.2 to read as follows: 3.18.2 Contractor is not, and shall not be deemed to be, an agent or employee of the City of Iowa City, Iowa In claims against any person or entity indemnified under this Section 3.18 by . an employee of the Contractor, a Subcontractor, anyone directly or anyone for whose acts they may be liable, the indemnification shall not be limited by a limitation on amount or type of damages, compensation or benefits benefit acts or other employee benefit acts. 1.5 ARTICLE 4 - ARCHITECT A. Change paragraph 4.1.2 to read as follows: 4.1.2 Duties, responsibilities and limitations of authority of the Arc Contract Documents shall not be restricted, modified or extended without written consent of the Owner, Contractor and Architect. Consent shall not be unreasonably withheld. B. Change paragraph 4.2.1 to read as follows: 4.2.1 The Architect will provide administration of the Contract as described in the Contract Documents and will be the Owner's representative as provided herein during construction and until the Architect issues the final Certificate for Payment to the Contractor on the Project. The Architect will advise and consult with the Owner. The Architect will have authority to act on behalf of the Owner only to the extent provided in the Contract C. Change paragraph 4.2.3 to read as follows: 4.2.3 On the basis of the site visits, the Architect will keep the Owner reasonably inf about the progress and quality of the portion of the Work comple known deviations from the Contract Documents and from the most re submitted by the Contractor, and 2) defects and deficiencies obsThe Architect and the Owner will not be responsible for the Contractor's failure to perform and the Owner in accordance with the requirements of the Contract Documents. chitect will not have control over or charge of and will not be responsi Contractor, Subcontractors, or their agents or employees, or anyentities performing portions of the Work. D. Change paragraphs 4.2.5 through 4.2.6 to read as follows: 4.2.5 Based on the Architect's observations and evaluations of the Contractor's Applications for Payment, the Architect will review and certify recommend to the Owner the amounts due the Contractor and will issue Certificates for Payment in such a 4.2.6 The Architect has authority to reject Work which does not conform to the Contract Documents. Whenever the Architect considers it necessary or adv for implementation of the intent of the Contract Documents, the Architect will have authority to recommend to the Owner to require additional inspection or testing of the Work in accordan 13.5.2 and 13.5.3, whether or not such Work is fabricated, installed or completed. However, neither this authority of the Architect nor a decision made in g exercise such authority shall give rise to a duty or responsibil SUPPLEMENTARY CONDITIONS DOCUMENT SC-5 Subcontractors, material and equipment suppliers, their agents or employees, or performing portions of the Work. E. Change paragraphs 4.2.10 through 4.2.12 to read as follows: 4.2.10 If the Owner and Architect agree, the Architect will provide one or more project representatives to assist in carrying out the Architect's responThe duties, responsibilities and limitations of authority of such project re an exhibit to be incorporated in the Contract Documents. 4.2.11 The Architect will interpret and make recommendations to the Owner regarding decide matters concerning performance under and requirements of the Con request of either the Owner or Contractor. The Architect's response to such requests wil made in writing within any time limits agreed upon or otherwise with reasonable promptness. If no agreement is made concerning the time within which recommendations required of the Architect shall be furnished in compliance with this Paragraph 4.2, then the Architect shall furnish such recommendations within such reasonable time after the request is made that allow sufficient time in the professional judgment of the Architect for review. 4.2.12 Interpretations and recommendations decisions of the Architect will be consistent with the intent of and reasonably inferable from the Contract Documen the form of drawings. When making such interpretations and recommendations decisions, the Architect will endeavor to secure faithful performance by both O show partiality to either and will not be liable for results of recommendations decisions rendered in good faith. 1.6 ARTICLE 5 - SUBCONTRACTORS A. Delete paragraph 5.2.1 and add the following: 5.2.1 The CONTRACTOR shall provide, within 24 hours of the bid opening, a list those persons, firms, companies or other parties to whom it proposes/intends to enter into a subcontract regarding this project as required on the Bid Form and the Agreement. 1. If no minority business enterprises (MBE) are utilized, the CONTRACTOR shall furnish documentation of all efforts to recruit MBE's. B. Change paragraph 5.3 to read as follows: 5.3 By appropriate agreement, written where legally required for val require each Subcontractor, to the extent of the Work to be performed by the Subcontr be bound to the Contractor by terms of the Contract Documents, a Contractor all the obligations and responsibilities which the Co assumes toward the Owner and Architect. Each subcontract agreem protect the rights of the Owner and Architect under the Contract Work to be performed by the Subcontractor so that subcontractingill not prejudice such rights, and shall allow to the Subcontractor, unless specificall subcontract agreement, the benefit of all rights, remedies and r that the Contractor, by the Contract Documents, has against the Owner. Where appropriate, the Contractor shall require each Subcontractor to enter into simila Sub-subcontractors. The Contractor shall make available to each pro to the execution of the subcontract agreement, copies of the Contract Documents to which the Subcontractor will be bound, and, upon written request of the Su Subcontractor terms and conditions of the proposed subcontract a variance with the Contract Documents. Subcontractors shall similarly make c portions of such documents available to their respective propose-subcontractors. All warranties provided by the Subcontractors, including all express and implied warranties in the Contract Documents and the agreements between the Contractor and the Subcontractors and all warranties provided by law, shall run to and be for the benefit of the Owner, and the Owner shall have a direct right of action against the Subcontractors SUPPLEMENTARY CONDITIONS DOCUMENT SC-6 for any breach of said warranties. 1.7 ARTICLE 6 - CONSTRUCTION BY OWNER OR BY SEPARATE CONTRACTORS A. Delete paragraph 6.1.4 in its entirety. B. Change paragraph 6.2.4 to read as follows: 6.2.4 The Contractor shall promptly remedy damage the Contractor wrongfully causes to completed or partially completed construction or to property of as provided in Subparagraph 10.2.5. 1.8 ARTICLE 7 - CHANGES IN THE WORK A. Change paragraph 7.2.1 to read as follows: 7.2.1 A Change Order is a written instrument prepared by the Architect and signed by the Owner and Contractor and approved by the Architect, stating their agreement upon all of the following: B. Add paragraph 7.2.2 as follows: 7.2.2 A Change Order is conclusively presumed to include all adjustments in Contract Time and Contract Sum necessary to complete the change to the Work and related parts of the Work. C. Add paragraph 7.2.3 as follows: 7.2.3 In all Change Orders or Construction Change Directives, the allowance for Overhead and profit to be included in the total cost to the Owner shall not exceed the following amounts: .1 For the Contractor, for any Work performed directly by the Contractor's employees, not including oversight of such work performed by subcontractor, fifteen percent (15%) of the cost. .2 For the Contractor, for Work performed by Subcontractor, ten percent (10%) of the amount due the Subcontractor. .3 For each Subcontractor, or Sub-subcontractor involved, for any Work performed by such contractor's own forces, fifteen percent (15%) of the cost. .4 For each Subcontractor, for Work performed by his the Sub-subcontractors, five percent (5%) of the amount due the Sub-subcontractor. .5 In order to facilitate checking of quotations for extras or credits, all proposals, except those so minor that their propriety can be seen by inspection, shall be accompanied by a complete itemization of costs including labor, materials and Subcontracts. In no case will a change involving over $200.00 be approved without such itemization. .6 Unless otherwise agreed, costs to which overhead and profit are to be applied shall be those costs listed in Subparagraph 7.3.6. 1.9 ARTICLE 8 - TIME A. Change paragraph 8.2.3 to read as follows: 8.2.3 The Contractor shall proceed expeditiously with adequate forces Substantial Completion within the Contract time. The Contractor shall bear all costs for overtime and all additional expense which may arise in order to achieve Substantial Completion within the Contract Time. B. Add paragraph 8.2.4 to read as follows: 8.2.4 If, upon the recommendation of the Architect, it becomes necessary at times during construction for the Owner to accelerate the work, each Contractor or subcontractor when ordered and directed by the Owner, shall cease work at any point and shall transfer SUPPLEMENTARY CONDITIONS DOCUMENT SC-7 his menits workers to such points and execute such portion of his its work as may be required to enable others to properly engage in and carry on their work. C. Change paragraph 8.3.1 to read as follows: 8.3.1 If the Contractor is delayed at any time in progress of the Work by an act or neglect of the Owner or Architect, or of an employee of either, or of a separat Owner, or by changes ordered in the Work, or by labor disputes, unusual delay in deliveries, unavoidable casualties or other causes beyond the Contractor's cor by delay authorized by the Owner pending arbitration, or by other causes which the A delay, then the Contract Time shall be extended by Change Order for such reasonable time as the Owner, with the advice of the Architect, may determine. Such delays shall not be a basis for damages. An extension of the Contract Time is the Contractor's sole remedy for such delay. D. Delete paragraph 8.3.3 in its entirety. E. Add paragraph 8.4 LIQUIDATED DAMAGES to read as follows: Since the actual monetary value of damages sustained by the Owner as a result of delayed completion of the Work is extremely difficult or impractical to assess, the Owner and Contractor agree as follows: 1. compliance with requirements of the Contract Documents: The Contractor shall pay as liquidated damages, and not as a penalty, the sum of amount as listed in the Notice to Bidders (or Instruction to Bidders) for each calendar day that subject to adjustments of the Contract Time as provided for in the Contract Documents. 2. The Owner shall give written notice to the Contractor of intent to assess liquidated damages pursuant to provisions of this Article. Calculation of the amount of liquidated damages shall commence on the date the Owner notifies the Contractor of this intent. 3. Liquidated damages assessed in accordance with these provisions are exclusive of other monetary damages to which the Owner may be entitled as a direct result dance with requirements of the Contract Documents. These liquidated damages are not 4. Partial performance of the Work of this Contract shall not relieve the Contractor from liability for liquidated damages. 5. Substantial Completion Certificate for the Work of the Contract. 6. Notwithstanding anything in the Contract Documents to the contrary, amounts assessed to the Contractor as liquidated damages may be deducted by the Owner from any money payable to the Contractor pursuant to this Contract. The Owner shall notify the Contractor in writing of a claim for liquidated damages prior to the date the Owner deducts such sum from money payable to the Contractor. 1.10 ARTICLE 9 - PAYMENTS AND COMPLETION SUPPLEMENTARY CONDITIONS DOCUMENT SC-8 A. Add the following paragraph 9.3.1.3. .3 The first payment application shall be accompanied by Contractor's partial waiver of lien only, for the full amount of the payment. Each subsequent monthly payment application shall be accompanied by the Contractor's partial waiver and by the partial waivers of Subcontractors and Suppliers who were included in the immediately preceding payment application to the extent of that payment. Application for final payment shall be accompanied by final waivers of lien from the Contractor, Subcontractor and Suppliers who have not previously furnished such final waivers. B. Change paragraph 9.4.1 to read as follows: 9.4.1 The Architect will, within seven days after receipt of the Contractor's Application for Payment, either issue to the Owner a Certificate for Payment, wi such amount as the Architect determines is properly due, or noti writing of the Architect's reasons for withholding certification in whole or in part as provided in Subparagraph 9.5.1. Nothing herein shall be construed as requiring the Architect to reduce the retainage to be applied to payment applications. All certifications and payments, including those pursuant to a pending claim, shall be tentative and conditional and it shall not be necessary for the Architect to make any statement to this effect. C. Add paragraph 9.4.2.1: 9.4.2.1 The Architect's determination as to the issuance of or withholding of or the amount of payment reflected on Certificates of Payment shall subject the Architect to no liability whatsoever to the Owner, Contractor, Surety, or any other person. D. Change paragraph 9.6.1 to read as follows: 9.6.1 The Owner shall make partial payments to the Contractor within 30 days after the Owner has received a Certificate for Payment from the Architect. To insure proper performance of the Contract, the Owner will retain 5% of each payment amount or such larger amount as will insure that there always remains a sufficient balance to complete the work, such retainage to be held until Final Acceptance of Work and shall so notify the Architect. Payment in the manner and within the time provided in the Contract Documents, and shall so notify the Architect. E. Change paragraph 9.8.4 to read as follows: When the Work or designated portion thereof is substantially com a Certificate of substantial Completion that shall establish the date of Substantial Comple shall establish responsibilities of the Owner and contractor for utilities, damage to the Work, and insurance, and shall fix the ctor shall finish all items on the list accompanying the Certificate.Warranties required by the Contract Documents shall commence on the date of Substantial Completion of the Work or designated portion thereof unless otherwise provided in the Certificate of Substantial Completion. F. Add paragraph 9.10.6: 9.10.6 Notwithstanding any provision to the contrary in this Contract, final payment of the retainage due the Contractor will be made not earlier than 31 days from the final acceptance of the work by the Owner, subject to the conditions and in accordance with the provisions of Chapter 573 of the Code of Iowa (2009), as amended. G. Add paragraph 9.10.7: 9.10.7 Warranties required by the Contract Documents, including those stated in the performance and payment bond, shall commence on the date of final, formal acceptance of the work by the City. 1.11 ARTICLE 10 - PROTECTION OF PERSONS AND PROPERTY A. Add paragraph 10.1.1: SUPPLEMENTARY CONDITIONS DOCUMENT SC-9 1. The Contractor will provide Material Safety Data Sheets (MSDS) for all hazardous chemicals or materials that will be at the job site. The Material Safety Data Sheets will be submitted to the Owner prior to the start of construction and supplemented as necessary throughout the project. This data is being provided for informational purposes only and does not relieve the contractor of any obligations for compliance with applicable OSHA and State laws regarding hazardous chemicals and right-to-know. B. Change paragraph 10.2.4 to read as follows: 1. When use or storage of explosives or other hazardous materials o methods are necessary for the execution of the Work, the Contractor shall give the Owner reasonable advance notice and shall exercise utmost care and carry on such activities unde supervision of properly qualified personnel. C. Add paragraph 10.2.9: 10.2.9 When required by law or for the safety of the Work, the Contractor shall shore up, brace, underpin and protect foundations and other portions of existing structures which are in any way affected by the Work. The Contractor, before commencement of any part of the Work, shall give any notices required to be given to adjoining landowners or other parties. The Owner shall be notified once these notices have been served and before the work is performed. 1.12 ARTICLE 11 - INSURANCE AND BONDS A. Change paragraph 11.1.1.5 to read as follows: .5 claims for damages, other than to the Work itself, because o tangible property, including explosion, collapse and damage to underground utilities and loss of use resulting therefrom; B. Change paragraph 11.1.2 to read as follows: 11.1.2 The insurance required by Subparagraph 11.1.1 shall be written for n liability specified in the Contract Documents or required by laws greater. Coverage whether shall be written on an occurrence or claims-made basis and shall be maintained without interruption from the date of commencement of the Work until the date of final payment and termination of any coverage required to be maiined after final payment, period for correction of Work or for such other period for maint coverage as specified in the Contract Documents. C. Change paragraph 11.1.3 to read as follows: 11.1.3 Certificates of Insurance acceptable to the Owner shall be filed with the Owner prior to commencement of the Work and thereafter upon renewal or replacement of each required policy of insurance. The name, address and phone number of the insurance company and agent must accompany the certificate. The liability limits required hereunder must apply to this Project only. These certificates and the insurance policies required by this Section 11.1 shall contain a provision that coverages afforded under the policies w An additional certificate evidencing continuation of liability coverage, including coverage for completed operations, shall be submitted upon final Application for Paymen thereafter upon renewal or replacement of such coverage until thquired by Section 11.1.2. Information concerning reduction of coverage on paid under the General Aggregate, or both, shall be furnished by promptness. D. Delete paragraph 11.1.4 in its entirety and add the following paragraphs 11.1.4 through 11.1.14: 11.1.4Any policy or policies of insurance purchased by the Contractor to satisfy his/her SUPPLEMENTARY CONDITIONS DOCUMENT SC-10 responsibilities under this contract shall include contractual liability coverage, and shall be in the following type and minimum amounts: Type of Coverage Aggregate Comprehensive General Liability Each Occurrence Bodily Injury & Property Damage* $1,000,000 $2,000,000 Combined Single Limit Automobile Liability Bodily Injury & Property Damage $1,000,000 Excess Liability $1,000,000 $1,000,000 Each Accident $500,000 Each Employee $500,000 Policy Limit $500,000 Professional Liability (if applicable) $1,000,000 $1,000,000 Property Damage liability insurance must provide explosion, collapse and underground coverage. Comprehensive General Liability using Insurance Services Office CG0001 or equivalent, shall include Contractual, Premises & Operations, Products & Completed Operations, Independent Contractors, Personal & Advertising Injury coverages, and Aggregate Limits of Insurance (Per Project) endorsement. Automobile Liability shall include all owned, non-owned and hired autos and also coverage for Contractual Liability. Excess Liability shall provide no less than following form coverage to the primary underlying policies. Workers Compensation shall include the Alternative Employer and Waiver of Subrogation endorsements in favor of the Owner. Professional Liability, if applicable: Tthe Contractor shall procure and maintain, during the life of this Agreement, Professional Errors and Omissions Liability Insurance. The Contractor will notify the Owner if claims made erode the policy limits below those required above. All liability policies above, except for Workers Compensation and Professional Liability, shall include ttached]. 11.1.5 The City requires that the Contractor's Insurance carrier be A rated or better by A.M. Best. In addition, the Contractor shall be required to comply with the following provisions with respect to insurance coverage: 11.1.6 The entire amount of Contractor's liability insurance policy coverage limits, identified in the policy and in the Certificate of Insurance, must, under the policy, be available to pay damages for which the insured Contractor becomes liable, or for which the insured assumes liability under the indemnity agreement herein contained, and such coverage amount shall not be subject to reduction or set off by virtue of investigation or defense costs incurred by Contractor's insurer. 11.1.7 The entire amount of the Contractor's liability insurance policy coverage limits shall be payable by the Contractor's insurer, with no deductible to be paid by, or self-insured retention to be attributed to, the Contractor unless this requirement is waived by the City. Contractor's Certificate of Insurance must set forth the nature and amount of any such deductible or self-insured retention. SUPPLEMENTARY CONDITIONS DOCUMENT SC-11 11.1.8 If Contractor's liability insurance coverage is subject to any special exclusions or limitations not common to the type of coverage being provided, such exclusions or limitations shall be noted on the Certificate of Insurance and copies of such shall be attached thereto. 11.1.9 The Contractor shall include the City as additional insured on all policies except workers compensation. The Contractor shall include the Owner (City of Iowa City, including its employees, agents and assigns) as additional insured on all policies, except endorsement(s) shall make the Contractor and, furthermore, shall not be contributing with any other insurance or similar protection available to the Owner, whether such available protection be primary, contributing or excess. Owner shall be an Additional Insured with respect to all required aforementioned coverages, which shall be stated on all Certificates of Insurance. Such Certificates shall also state that the Governmental Immunities Endorsement (see attached) apply and said endorsements shall be attached thereto. The Contractor shall require any of its agents and subcontractors who perform work and/or services pursuant to the provisions of this Agreement to purchase and maintain the same types of insurance as are required of the Contractor. 11.1.10 The City prefers that Contractor provide it with "occurrence form" liability insurance coverage. If Contractor can only provide "claims-made" insurance coverage, then the Contractor must comply with the following requirements: A. If the Contractor changes insurance carriers, or if Contractor's insurance coverage is canceled, during the contract period or within two years after City's acceptance of the work, Contractor agrees to immediately notify the City of such event. B. If Contractor's insurance is canceled or is allowed to lapse during said period, Contractor shall be required to obtain replacement insurance coverage to fulfill its obligation hereunder. C. If, during said period, Contractor voluntarily changes insurance carriers or is required to obtain replacement coverage from another carrier, Contractor shall either (1) purchase "tail" coverage from its first carrier effective for a minimum of two years after City Council acceptance of the work, or (2) purchase "prior acts" insurance coverage from its new carrier, covering prior acts during the period of this Contract from and after its inception. D. "Tail" or "prior acts" coverage so provided shall have the same coverage, with the same limits, as the insurance specified in this Contract, and shall not be subject to any further limitations or exclusions, or have a higher deductible or self-insured retention than the insurance which it replaces 11.1.11 The City reserves the right to waive any of the insurance requirements herein provided. The City also reserves the right to reject Contractor's insurance if not in compliance with the requirements herein provided, and on that basis to either award the contract to the next low bidder, or declare a default and seek specific performance or termination, as the case may be. 11.1.12 In the event that any of the policies of insurance or insurance coverage identified on Contractor's Certificate of Insurance are canceled or modified, or in the SUPPLEMENTARY CONDITIONS DOCUMENT SC-12 event that Contractor incurs liability losses, either due to activities under this Contract, or due to other activities not under this Contract but covered by the same insurance, and such losses exhaust the aggregate limits of Contractor's liability insurance, then in that event the City may in its discretion either suspend Contractor's operations or activities under this Contract, or terminate this Contract, and withhold payment for work performed on the Contract. 11.1.13 In the event that any of the policies or insurance coverage identified on Contractor's Certificate of Insurance are canceled or modified, then in that event the City may in its discretion either suspend Contractor's operations or activities under this Contract, or terminate this Contract, and withhold payment for work performed on the Contract. 11.1.14 Contractor shall be responsible for any deductible amounts; including but . E. Delete paragraphs 11.3 in its entirety and add paragraphs 11.3 as follows: 11.3 PROPERTY INSURANCE 11.3.1 OWNER shall purchase and maintain property insurance upon the Work at the Site in the amount of the full replacement cost thereof (subject to such deductible amounts as may be provided in the Supplementary Conditions or required by Laws and Regulations). This insurance shall: .1 include the interests of OWNER, CONTRACTOR, Subcontractors, Engineering Consultants, and any other individuals or entities identified in the Supplementary Conditions, and the officers, directors, partners, employees, agents, and other consultants and subcontractors of each and any of them, each of whom is deemed to have an insurable interest and shall be listed as an additional insured; .2 be written on a Builder's Risk "all-risk" or open peril or special causes of loss policy form that shall at least include insurance for physical loss or damage to the Work, temporary buildings, false work, and materials and equipment in transit, and shall insure against at least the following perils or causes of loss: fire, lightning, extended coverage, theft, vandalism and malicious mischief, earthquake, collapse, debris removal, water damage, and such other perils or causes of loss as may be specifically required by the Supplementary Conditions; .3 include expenses incurred in the repair or replacement of any insured property; .4 include $100,000 for materials and equipment stored at the Site or at another location that was agreed to in writing by OWNER prior to being incorporated in the Work, provided that such materials and equipment have been included in an Application for Payment recommended by OWNER; .5 allow for partial utilization of the Work by OWNER; .6 include testing and startup; and .7 be maintained in effect until final payment is made. .8 Such coverage shall not include coverage for loses or damage caused by the negligent acts or omissions of Contractor or Subcontractors, or for damage to material or equipment while under the control of or stored by Contractor prior to installation or prior to inclusion of such material or equipment in construction. Contractor shall maintain appropriate insurance for such risks or occurrences SUPPLEMENTARY CONDITIONS DOCUMENT SC-13 11.3.2 OWNER shall purchase and maintain such boiler and machinery insurance which shall specifically cover such insured objects or additional property insurance as may be required by Laws and Regulations which will include the interests of OWNER, CONTRACTOR, Subcontractors, OWNER's Engineering Consultants, and any other individuals or entities identified in the Supplementary Conditions, each of whom is deemed to have an insurable interest and shall be listed as an insured or additional insured. 11.3.3 All the policies of insurance (and the certificates or other evidence thereof) required to be purchased and maintained in accordance with paragraph 5.06 will contain a provision or endorsement that the coverage afforded will not be canceled or materially changed or renewal refused until at least 30 days prior written notice has been given to OWNER and CONTRACTOR and to each other additional insured to whom a certificate of insurance has been issued and will contain waiver provisions. 11.3.5 If CONTRACTOR requests in writing that other special insurance be included in the property insurance policies provided under paragraph 5.06, OWNER shall, if possible, include such insurance, and the cost thereof will be charged to CONTRACTOR by appropriate Change Order or Written Amendment. Prior to commencement of the Work at the Site, OWNER shall in writing advise CONTRACTOR whether or not such other insurance has been procured by OWNER. F. Delete section 11.4 in its entirety and add paragraph 11.4 to read as follows: 11.4.1 The Contractor shall furnish a Performance Bond and Labor and Material Payment Bond from a surety using the form included in the Contract Documents, each in an amount equal to the Contract Price. Cost of such Bonds shall be included in the base bid. Each alternative bid shall include the additional Bond cost. Contractor shall deliver the required Bonds to the Owner prior to the signing of the Agreement. .1 The Performance, Labor and Material Bond shall be executed in conformity with the American Institute of Architect's Document A-312 (1984 Edition), with coverage provided by a surety having a financial rating from A.M. Best of A, VII or higher. .2 Whenever the Contractor shall be and is declared by the Owner to be in default under the Contract, the Surety and Contractor are each responsible to make full payment to the Owner for any and all additional services of the Architect as defined in the Owner/Architect Agreement which are required as a result of the Contractor's default and in protecting the Owner's right under the agreement with the Contractor to remedy the Contractor's default or honor the terms of the Performance Bond. .3 These Bonds shall be maintained by the Contractor and shall remain in full force and effect until final acceptance of the Work by the Owner. The Contractor agrees and will cause the Surety to agree to be bound by each and every provision of all the Contract Documents. .4 The Surety shall give written notice to Owner, within seven (7) days after receipt of a declaration of default, of the Surety's election either to remedy the default or defaults promptly or to perform the work promptly or to pay to Owner the penal sum of the bond, time being of the essence. In said notice of election, the Surety shall indicate the date on which the remedy or performance will commence, and it shall then be the duty of the Surety to give prompt notice in writing to Owner immediately upon completion of (a) the remedy and/or correction of each default, (b) the remedy and/or correction of each omitted item of work, (c) the furnishing of each omitted item of work, and (d) the performance of the work. The Surety shall not assert solvency of its Principal or its Principal's denial of default as justification for its failure to promptly remedy the default SUPPLEMENTARY CONDITIONS DOCUMENT SC-14 or defaults or perform the work. .5 The Principal and Surety further agree as part of this obligation to pay all such damages of any kind to person or property that may result from a failure in any respect to perform and complete the Work including, but not limited to, all repair and replacement costs necessary to rectify construction error, architectural and engineering costs and fees, all consultant fees, all testing and laboratory fees, and all legal fees and litigation costs incurred by the Owner. .6 The Surety agrees that other than as is provided in the Bond it may not demand of the Owner that the Owner shall (a) perform any thing or act, (b) give any notice, (c) furnish any clerical assistance, (d) render any service, (e) furnish any papers or documents, or (f) take any other action of any nature or description which is not required of the Owner to be done under the Contract Documents. 11.4.2 Surety shall be satisfactory to the Owner and shall be authorized to do business in the state of Iowa. 1.13 ARTICLE 13 - MISCELLANEOUS PROVISIONS A. Change paragraph 13.1 to read as follows: 13.1 The Contract shall be governed by the laws of the State of Iowa of the place where the Project is located except that, if the parties have selected arb dispute resolution, the Federal Arbitration Act shall govern Sec. B. Change paragraph 13.3.1 to read as follows: 13.3.1 Written notice shall be deemed to have been duly served if deliv individual, to a member of the firm or entity or to an officer of the corporation intended, or if delivered at or sent by registered or certified mail to the last business address known to the party giving notice. C. Change paragraph 13.5.1 to read as follows: 13.5.1 Tests, inspections and approvals of portions of the Work shall be made as required by the Contract Documents and by applicable laws, statutes, ordinances, codes, rules, and regulations or lawful orders of public authorities. Unless otherwise provided, the Con arrangements for such tests, inspections and approvals with an i entity acceptable to the Owner, or with the appropriate public authority, an costs of tests, inspections and approvals. The Contractor shall give the Architect and Owner timely notice of when and where tests and inspections are to be he Architect and Owner may observe such procedures. The Owner shall bear costs of 1) tests, inspections or approvals that do not become requirements until after bids are received or nego concluded and 2) tests, inspections or approvals where building codes or applicable laws or regulations prohibit the Owner from delegating their cost to the. Copies of all reports, data and other documents related to tests, inspections and approvals shall be provided to the Architect as soon as practicable. D. Delete paragraphs 13.7. E. Add the following Section 13.8: 13.8 The Contractor shall maintain policies of employment as follows: .1 The Contractor and the Contractor's subcontractors shall not discriminate against any employee or applicant for employment because of race, religion, color, sex, age, disability or national origin or otherwise as may be required by local or state ordinance. The Contractor shall take affirmative action to insure that applicants are employed, and that employees are treated during employment without regard to their race, religion, color, sex, age, disability or national origin or otherwise as may be required by local or SUPPLEMENTARY CONDITIONS DOCUMENT SC-15 state ordinance. Such action shall include, but not be limited to, the following: employment, upgrading, demotion or transfer; recruitment or recruitment advertising; layoff or termination; rates of pay or other forms of compensation; and selection for training, including apprenticeship. The contractor agrees to post in conspicuous places, available to employees and applicants for employment, notices setting forth the policies of non-discrimination. .2 The Contractor and the Contractor's subcontractors shall, in all solicitations or advertisements for employees placed by them or on their behalf, state that all qualified applicants will receive consideration for employment without regard to race, religion, color, sex, age, disability or national origin or otherwise as may be required by local or state ordinance F. Add the following Section 13.9: 13.9 The Contractor shall maintain CONTRACT COMPLIANCE PROGRAM (ANTI DISCRIMINATION REQUIREMENTS) for all contracts of $25,000 or more, the Contractor shall abide by the requirements of the City's Contract Compliance Program, which is included with these Specifications beginning on page CC-1. 1.14 ARTICLE 14 - TERMINATION OR SUSPENSION OF THE CONTRACT A. Add the following paragraph 14.2.1.5: .5 fails or refuses to provide insurance or proof of insurance as required by the Contract Documents. B. Change paragraph 14.2.4 to read as follows: 14.2.4 If the unpaid balance of the Contract Sum exceeds costs of finishin compensation for the Architect's services and expenses made necessary thereby, and other damages incurred by the Owner and not expressly waived, such excess shall be paid to the Contractor. If such costs exceed the unpaid balance, the Contra the Owner. The amount to be paid to the Contractor or Owner, as the case may be, s certified by the Initial Decision Maker, upon application, and this obligation for payment shall survive termination of the Contract. The Contractor shall bear all testing, engineering, accounting, and legal expenses made necessary as a result of termination of the Contract. 1.15 ARTICLE 15- CLAIMS AND DISPUTES A. Change paragraphs 15.1.1 through 15.1.3 to read as follows: 15.1.1 Definition. A Claim is a demand or assertion by one of the parties seeking, as a matter of right, payment of money, or other similar relief with respect to the administration terms of the Contract during the performance of the Work. The term "Claim" also includes other disputes and matters in question between the Owner and Contractor arising out of or relating to Contract. The responsibility to substantiate Claims shall rest with the pa Nothing in this Article is intended to limit claims by the Owner related to the performance of or quality of the Work. 15.1.2 Notice of Claims. Claims by either the Owner or Contractor must be initiated by written notice to the other party and to the Initial Decision Maker with Architect is not serving as the Initial Decision Maker. Claims by either party must be initiated within 21 days after occurrence of the event giving rise to such claimant first recognizes the condition giving rise to the Claim. An additional Claim relating to the same subject matter made after the initial Claim has been implemented by Change Order will not be considered and is deemed waived by the Contractor. unless submitted in a timely manner. 15.1.3 Continuing Contract Performance. Pending final resolution of a Claim, except as SUPPLEMENTARY CONDITIONS DOCUMENT SC-16 otherwise agreed in writing or as provided in Section 9.7 and ArContractor shall proceed diligently with performance of the Contract and the Owne payments for sums not in dispute in accordance with the Contract Documents. The Architect will prepare Change Orders and issue Certificates for Payment in of the Initial Decision Maker. B. Change paragraph 15.2.5 to read as follows: 15.2.5 The Initial Decision Maker will render an initial decisio or indicating that the Initial Decision Maker is unable to resol shall 1) be in writing, 2) state the reasons therefore, and 3) notify the parties and the Architect, if the Architect is not serving as the Initial Decision Maker, of a Contract Time or both. The approval or rejection of a Claim by the initial decision sha and binding on the parties but subject to mediation and, if the parties through mediation, to binding dispute resolution arbitration. C. Delete paragraphs 15.2.6 and 15.2.6.1 in their entirety. D. Delete Section 15.3 MEDIATION in its entirety. E. Delete Section 15.4 ARBITRATION in its entirety. F. Add the following paragraph 15.5 to read as follows: 15.5 The Owner and Contractor may exercise such rights or remedies as either may otherwise have under the Contract Documents or by Laws or Regulations in respect of any dispute. Disputes shall be resolved by legal or equitable proceedings in a court of appropriate jurisdiction. Under no circumstances shall binding arbitration be required as . to any dispute arising between the parties or under the Contract Documents END OF DOCUMENT 00800 SUPPLEMENTARY CONDITIONS DOCUMENT SC-17 Division 01 General Requirements 01 Division Division 23 Heating, Ventilating and Air Conditioning (HVAC) 23 Division CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 SECTION 23 0900 - INSTRUMENTATION AND CONTROL FOR HVAC PART 1 - GENERAL 1.01 RELATED WORK A. The requirements of Division 00 - Procurement and Contracting Requirements, Division 01 - General Requirements and Section 23 0010 - HVAC General Provisions are applicable to work required of this section. 1.02 DESCRIPTION OF WORK A. Contractor shall furnish and install DDC system including all necessary hardware and all operating and applications software necessary to perform the control sequences of operation as called for in this specification. New DDC system shall be an extension of existing Schneider Electric I/A Series BACnet DDC system. B. Upon completion of system extension, the DDC system shall be a complete system designed for use on Intranets and the Internet. This functionality shall extend into the equipment rooms. Primary controllers located in equipment rooms and shall be fully IT compatible devices that mount and communicate directly on the IT infrastructure existing in the facility. Contractor shall be responsible for coordination with the owner’s environment without disruption to any of the other activities taking place on that LAN. C. The DDC system work shall result in a complete, fully functional, commissioned DDC system that meets the intent of this specification and the sequences of operation. This work shall include, but not be limited to the provision of all labor, materials, tools, equipment, software, software licenses, software configurations and database entries, interfaces, wiring, tubing, installation, labeling, engineering, calibration, documentation, samples, submittals, testing, verification, training services, permits and licenses, transportation, shipping, handling, administration, supervision, management, insurance, temporary protection, cleaning, cutting and patching, warranties and services. D. The control system shall be installed by competent control mechanics and electricians employed by DDC Contractor. DDC Contractor is responsible for all work performed by their subcontractors. E. Manage and coordinate the DDC system work in a timely manner in consideration of the Project schedules. Coordinate cooperatively with the associated work of other trades so as to assist the progress and not impede or delay the work of associated trades. F. Provide support and coordination with Testing and Balancing (TAB) and Validation Contractors for all interfaces between controls and TAB/validation scope of work. Provide all devices, such as portable operator terminals for TAB use in completing TAB procedures. G. All interlocking, wiring and installation of control devices associated with the equipment listed below shall be provided under this contract. When the DDC system is fully installed and operational, DDC Contractor and representatives of Owner will review and check out the system. At that time, DDC Contractor shall demonstrate the operation of the system and prove that it complies with the intent of the drawings and specifications. H. All work performed under this section of the specifications will comply with all codes, laws and governing bodies. If the drawings and/or specifications are in conflict with governing codes, Contractor shall submit a proposal with appropriate modifications to the project to meet code restrictions. If this specification and associated drawings exceed governing code requirements, the specification will govern. Contractor shall obtain and pay for all necessary construction permits and licenses. INSTRUMENTATION AND CONTROL FOR HVAC 23 0900-1 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 1.03 WORK BY OTHERS A. The following incidental work shall be furnished by the designated under the supervision of the DDC Contractor. 1. HVAC Piping Contractor Shall: a. Install automatic valves that are specified to be supplied by DDC Contractor. b. Install all pipe mounted DDC items including wells, paddle switches and differential pressure switches, including their isolation valves and associated tubing. 2. Sheet Metal Contractor Shall: a. Install all automatic dampers furnished by DDC Contractor. b. Provide necessary blank-off plates (safing) required to install dampers that are smaller than the duct size. c. Assemble multiple section dampers with required interconnecting linkages and extend required number of shafts through duct for external mounting of damper motors. d. Provide access door or other approved means of access through ducts for service to control equipment. e. Install airflow measuring stations. 3. Coordinate with Electrical Contractor: a. The installation of all line voltage power wiring by Division 26. 1.04 ELECTRIC WIRING A. All electric wiring and wiring connections required for the installation of the DDC system, as herein specified, shall be provided by DDC Contractor unless specifically shown on the electrical drawings or called for in the electrical specifications. Line voltage wiring which is the responsibility of DDC Contractor includes but is not limited to: power for unit mounted controllers and line voltage control devices, freezestat wiring, line voltage thermostats, and motor starter interlocks as required by sequence of operation. B. All control wiring in finished spaces is to be routed concealed in walls or above ceilings unless specifically noted otherwise. Concealed control wiring, where accessible, may be installed without conduit. All concealed control wiring which is not accessible shall be routed in blue conduit. Control wiring in unfinished spaces may be routed exposed but shall be in blue conduit. Wiring in ducts, plenums and other air handling spaces shall be specifically listed for the use. Installation shall comply with all code requirements. C. Wiring shall comply with the requirements of local and national electrical codes. 1.05 QUALIFICATIONS A. All bidders must be DDC Contractors in the business of installing direct digital control building automation systems for a minimum of 3 years. B. The DDC system shall be provided by a single source manufacturer offering a full line of controls. This system shall be furnished, engineered, and installed by the manufacturers local factory owned branch office or the manufacturers locally authorized representative. DDC Contractor shall have factory trained technicians to provide instruction, routine maintenance, and emergency service within 48 hours upon receipt of request. C. Control system components shall be the manufacturer’s latest standard of design at the time of bid and in conformance with the following applicable standards for products specified: 1. American Society for Testing and Materials, ASTM. INSTRUMENTATION AND CONTROL FOR HVAC 23 0900-2 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 2. Institute of Electrical and Electronic Engineers, IEEE. 3. National Electrical Manufacturers Association, NEMA. 4. Underwriters Laboratory, UL (UL 916). 5. FCC Regulation, Part 15, Section 156. 6. National Fire Protection Association, NFPA. 7. Local building codes. 1.06 SUBMITTALS A. The following shall be submitted for approval: 1. DDC Contractor shall submit schematic drawings for the entire control system for review and approval before work shall begin. Included in the submittal drawings shall be a one page diagram depicting the system architecture complete with a communications riser. Drawings shall include point-to-point wiring diagrams and must show all temperature controls, start-stop arrangement for each piece of equipment, equipment interlocks, wiring terminal numbers and any special connection information required for properly controlling the HVAC equipment. At a minimum, submit the following: a. DDC network architecture diagrams including all controllers and interconnections. b. Schematics, sequences and flow diagrams. c. Points schedule for each real point in the DDC, including: tag, point type, system name and display units. d. Detailed bill of material list for each controller, identifying quantity, part number, description, and optional features. e. Control damper schedule including a separate line for each damper and a column for each of the damper attributes, including: code number, fail position, damper type, damper operator, blade type, bearing type, seals, duct size, damper size, mounting, and actuator type. f. Control valve schedules including a separate line for each valve and a column for each of the valve attributes: code number, configuration, fail position, pipe size, valve size, body configuration, close off pressure, capacity, valve CV, calculated CV, design pressure, actual pressure, and actuator type. 2. The submittals shall include manufacturers catalog data describing each item of control equipment or component provided and installed for the project. 3. The submittals shall include a specification compliance analysis for review and approval before work shall begin. The compliance document shall address each paragraph of the specification by indicating COMPLY, EXCEED, or EXCEPTION. Do not indicate COMPLY unless the proposed system exactly meets the paragraph requirement. If EXCEED or EXCEPTION is indicated, then provide a clear and concise explanation of the variance from the specifications and the net effect this would have on the specified system performance. 1.07 PROTECTION OF SOFTWARE RIGHTS A. Prior to delivery of software, the Owner and the party providing the software will enter into a software license agreement with provisions for the following: 1. Limiting use of software to equipment provided under these specifications. 2. Limiting copying. 3. Preserving confidentiality. 4. Prohibiting transfer to a third party. 1.08 PRE-PROGRAMMNG DESIGN REVIEW MEETING A. Prior to starting programming, a design review meeting shall be scheduled with the Design Professional. The agenda of this meeting will be to discuss the design intent, review all systems requiring control, and answer any questions the Temperature Controls Contractor may have. INSTRUMENTATION AND CONTROL FOR HVAC 23 0900-3 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 PART 2 - PRODUCTS 2.01 ACCEPTABLE MANUFACTURERS A. Subject to compliance with requirements, acceptable manufacturers are as follows: 1. Schneider Electric I/A Series – The Baker Group B. All control equipment shall be the product of one manufacturer. 2.02 SYSTEM ARCHITECTURE A. The complete electronic DDC system shall be comprised of the following levels of control devices. 1. System Workstation includes the hardware and software necessary for an operator to interface with the control system. 2. Network Controller(s) are used for high level global programming functions and system networking. 3. Local Controllers are for control of large primary HVAC systems such as air handling systems, heating hot water systems and chilled water systems. 4. Zone Controllers are dedicated for specific equipment such as VAV boxes, fan coils, and heat pump controls. 5. Network thermostats dedicated to specific equipment such as VAV boxes, fan coils, or heat pumps, etc. 6. Field devices include but are not limited to electronic sensors, valves, actuators, switches, relays, and transducers. 2.03 OPERATOR INTERFACE A. General: The DDC operator interface shall be user friendly, readily understood and shall make maximum use of colors, graphics, icons, embedded images, animation, text based information and data visualization techniques to enhance and simplify the use and understanding of the DDC system by authorized users at the OI. 1. User access to the DDC system shall be protected by a flexible and Owner redefinable software-based password access protection. Password protection shall be multi-level and partitionable to accommodate the varied access requirements of the different user groups. Provide the means to define unique access privileges for each individual authorized user. Also provide the means to establish general password groups to which an individual will then be assigned. Once assigned to the group each individual will assume all the capabilities and restrictions of that group. Provide the means to on-line manage password access control under the control of a master password. 2. The operator interface shall be able to combine data from any and all of the system components in a single browser window. This shall include historical data stored on a server. 3. The operator interface shall incorporate comprehensive support for functions including, but not necessarily limited to, the following: a. User access for selective information retrieval and control command execution b. Monitoring and reporting c. Alarm, non-normal, and return to normal condition annunciation d. Selective operator override and other control actions e. Information archiving, manipulation, formatting, display and reporting f. DDC internal performance supervision and diagnostics g. On-line access to user HELP menus h. On-line access to current DDC as-built records and documentation INSTRUMENTATION AND CONTROL FOR HVAC 23 0900-4 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 i. Means for the controlled re-programming, re-configuration of DDC operation and for the manipulation of DDC database information in compliance with the prevailing codes, approvals and regulations for individual DDC applications. 4. Provide DDC reports and displays making maximized use of simple English language descriptions and readily understood acronyms, abbreviations and the like to assist user understanding and interpretation. All text naming conventions shall be consistent in their use and application throughout the DDC. B. Web Interface 1. The system shall be capable of supporting clients using a standard web browser such as Internet Explorer™. Systems requiring additional software (to enable a standard Web browser) are not acceptable. 2. The web browser shall provide the same view of the system, in terms of graphics, schedules, calendars, logs, etc., and provide the same interface methodology as is provided by the graphical user interface. Systems that require different views or that require different means of interacting with objects such as schedules, or logs, shall not be permitted. 3. The web browser client shall support at a minimum, the following functions: a. User log-on identification and password shall be required. Security using Java authentication and encryption techniques to prevent unauthorized access shall be implemented. b. Graphical screens developed for the operator interface shall be the same screens used for the web browser client. Any animated graphical objects supported by the OI shall be supported by the web browser interface. c. HTML programming shall not be required to display system graphics or data on a web page. HTML editing of the web page shall be allowed if the user desires a specific look or format. d. Real-time values displayed on a web page shall update automatically without requiring a manual “refresh” of the web page. e. Users shall have administrator-defined access privileges. f. The system shall provide the capability to specify a users home page. Provide the ability to limit a specific user to just their defined home page. From the home page links to other views, or pages in the system, shall be possible if allowed by the system administrator. g. Graphic screens on the web browser client shall support hypertext links to other locations on the Internet or on Intranet sites, by specifying the Uniform Resource Locator (URL) for the desired link. C. Alarms: Alarms shall be routed directly from network controllers to PCs and servers. It shall be possible for specific alarms from specific points to be routed to specific PCs and servers. The alarm management portion of the OI software shall, at the minimum, provide the following functions: 1. Log date and time of alarm occurrence. 2. Generate a “pop-up” window, with audible alarm, informing a user that an alarm has been received. 3. Allow a user, with the appropriate security level, to acknowledge, temporarily silence, or discard an alarm. 4. Provide an audit trail on hard drive for alarms by recording user acknowledgment, deletion, or disabling of an alarm. The audit trail shall include the name of the user, the alarm, the action taken on the alarm, and a time/date stamp. 5. Provide the ability to direct alarms to an e-mail address or alpha-numeric pager. This must be provided in addition to the pop up window described above. Systems which use e-mail and pagers as the exclusive means of annunciating alarms are not acceptable. 6. Any attribute of any object in the system may be designated to report an alarm. 7. The DDC shall annunciate diagnostic alarms, at a minimum, indicating system failures and non-normal operating conditions INSTRUMENTATION AND CONTROL FOR HVAC 23 0900-5 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 D. Reports: Reports shall be generated and directed to one or more of the following: Operator interface displays, printers, or archive at the user’s option. As a minimum, the system shall provide the following reports: 1. All points in the DDC system. 2. All points in each DDC application. 3. All points currently in alarm in a DDC application. 4. All points locked out in a DDC application. 5. All DDC schedules. 6. All user defined and adjustable variables, schedules, interlocks, etc. 7. DDC diagnostic and system status reports. E. Dynamic Color Graphics: The system shall allow for the creation of user defined, color graphic displays for the viewing of HVAC and electrical systems, or building schematics. These graphics shall contain point information from the database including any attributes associated with the point (engineering units, etc.). In addition operators shall be able to command equipment or change setpoints from a graphic through the use of the mouse. Requirements of the color graphic subsystem include: 1. An unlimited number of graphic displays shall be able to be generated and executed. 2. Graphics shall be based on Scalar Vector Graphic (SVG) technology. 3. Values of real time attributes displayed on the graphics shall be dynamic and updated on the displays. 4. The graphic displays shall be able to display and provide animation based on real-time DDC data that is acquired, derived, or entered. 5. The user shall be able to change values (setpoints) and states in system controlled equipment directly from the graphic display. 6. Provide a graphic editing tool that allows for the creation and editing of graphic files. It shall be possible to edit the graphics directly while they are on line, or at an off line location for later downloading to the controller. 7. DDC system shall be provided with a complete user expandable symbol library containing all of the basic symbols used to represent components of a typical DDC system. Implementing these symbols in a graphic shall involve dragging and dropping them from the library to the graphic. 8. The following list of graphics, at a minimum, shall be provided: a. Floor plans showing room numbers and temperature sensor locations are to be provided that will alarm when a room is off their respective zone temperature and set point. The floor plans shall also be linked to a screen to show the equipment serving that particular room/zone. b. Provide a graphic screen for each type of equipment connected to the DDC system. At a minimum, the following shall be visible from the OI: 1) VAV Boxes - discharge air temperature, zone temperature, set-point, airflow, damper position, reheat valve position 2) RTU - supply/return fans on/off/speed/status, dirty filter switch, outdoor air temperature, mixed air temperature, return air temperature, discharge air temperature, low limit alarm, heat/cool stage, damper positions, static pressure F. Schedules: It shall be possible to configure and download from the operator interface schedules for any of the controllers on the network. 1. The system shall provide multiple schedule input forms for automatic DDC time-of-day scheduling and override scheduling of DDC operations. At a minimum, the following spreadsheet types shall be accommodated: a. Weekly schedules. b. Temporary override schedules. INSTRUMENTATION AND CONTROL FOR HVAC 23 0900-6 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 c. Special “Only active if today is a holiday” schedules. d. Monthly schedules. 2. Schedules shall be provided for each system or sub-system in the DDC system. Each schedule shall include all command able points residing within the system. Each point may have a unique schedule of operation relative to the system use schedule, allowing for sequential starting and control of equipment within the system. Scheduling and rescheduling of points shall be accomplished easily via the system schedule spreadsheets. 3. Monthly calendars for a 12-month period shall be provided that allow for simplified scheduling of holidays and special days in advance. Holidays and special days shall be user-selected with the pointing device or keyboard, and shall automatically reschedule equipment operation as previously defined on the weekly schedules. G. Historical trending and data collection: Trend and store point history data for all DDC points and values as selected by the user. The trend data shall be stored in a manner that allows custom queries and reports using industry-standard software tools. At a minimum, provide the capability to perform statistical functions on the historical database: 1. Average. 2. Arithmetic mean. 3. Maximum/minimum values. 4. Range – difference between minimum and maximum values. 5. Standard deviation. 6. Sum of all values. 7. Variance. 2.04 NETWORK CONTROLLERS A. General: The network controller shall be a microprocessor based, multi-tasking real time system controller that provides advanced system programming, uplink and downlink communications, polling and other supervisory functions for zone and local controllers. B. Each network controller shall be classified as a BACnet compatible device, supporting the BACnet Building Controller (B-BC) profile. Controllers that support a lesser profile such as B-AAC are not acceptable. NRCs shall be tested and certified by the BACnet Testing Laboratory (BTL) as Advanced Application Controllers (B-BC). C. Hardware Specifications 1. Operating Environment: The controller shall be capable of operating in an environment of 32 to 122 deg F and 10 to 90% relative humidity non-condensing. 2. Memory: Both the operating system of the controller, plus the application program for the controller, shall be stored in non-volatile, FLASH memory. Controllers shall contain enough memory for the current application, plus required history logging, plus a minimum of 20% additional free memory. 3. Communication Ports: Each network controller shall provide communication to both the Workstation(s) and the field buses. An on-board Ethernet port shall be provided. 4. Stand-Alone: The controller shall be a true no-host system that does not require a PC or "Host" computer to perform any control functions or communications. 5. Modular Expandability: The system shall employ a modular I/O design to allow easy expansion. Input and output capacity is to be provided through plug-in modules of various. It shall be possible to combine I/O modules as desired to meet the I/O requirements for individual control applications. 6. Real Time Clock (RTC): Each network controller shall include a battery-backed, real time clock, accurate to 10 seconds per day. The RTC shall provide the following: time of day, day, month, year, and day of week. The system shall automatically correct for daylight savings time and leap years. INSTRUMENTATION AND CONTROL FOR HVAC 23 0900-7 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 7. Power Supply: The power supply for the network controller shall be auto sensing, 120- 220VAC, 60 Hz power, with a tolerance of +/- 20%. Line voltage below the operating range of the system shall be considered outages. The controller shall contain over voltage surge protection, and require no additional AC power signal conditioning. a. Automatic Restart After Power Failure: Upon restoration of power after an outage, the network controller shall automatically and without human intervention: update all monitored functions; resume operation based on current, synchronized time and status, and implement special start-up strategies as required. b. Battery backup: The network controller shall include an on-board battery to back up the controller’s RAM memory. The battery shall have a shelf life of over 5 years, and provide accumulated backup of all RAM and clock functions for at least 3 years. In the case of a power failure, the network controller shall first try to restart from the RAM memory. If that memory is corrupted or unusable, then the network controller shall restart itself from its application program stored in its FLASH memory. 8. Field communication ports shall be individually electrically isolated to protect against transients, spikes, and power surges. The ports shall be optically isolated from each other, the controller circuit board and from power wiring. Optical isolation shall be provided either as an integral component to the controller or provided as a separate interface device between the controller and field wiring. 9. Upgrades: Include all future controller firmware at no additional cost to the system owner for a 3 year period after system acceptance. 10. Failure of any system controller shall be audibly and visually annunciated on a system workstation. D. Network Controller Software 1. General: The network controller shall contain FLASH memory to store both the resident operating system and the application software. There will be no restrictions placed on the type of application programs in the system. Each network controller shall be capable of parallel processing, executing all control programs simultaneously. Any program may affect the operation of any other program. Each program shall have the full access of all I/O facilities of the processor. This execution of control function shall not be interrupted due to normal user communications including interrogation, program entry, printout of the program for storage, etc. 2. User Programming Language: The application software shall be user programmable. This includes all strategies, sequences of operation, control algorithms, parameters, and setpoints. The source program shall be English language-based and programmable by the user. The language shall be structured to allow for the easy configuration of control programs, schedules, alarms, reports, telecommunications, local displays, mathematical calculations, passwords, and histories. The language shall be self-documenting. Users shall be able to place comments anywhere in the body of a program. Program listings shall be configurable by the user in logical groupings. Controllers that use a “canned” program method will not be accepted. 3. Programming Functions: The software blocks shall provide all the necessary mathematics, logic, utility, and control functions necessary for proper sequence of control. These functions shall be contained in the network controller operating system to be available in any combination for field programming the unit through RAM memory. a. Proportional, Integral plus Derivative Control (PID) b. Self tuning PID c. Two position control d. Digital filter e. Ratio calculator f. Equipment cycling protection INSTRUMENTATION AND CONTROL FOR HVAC 23 0900-8 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 4. Energy Management Applications: As a minimum, the network controller shall have the ability to, but not be limited to, perform energy management strategies such as: a. Time or event based scheduling b. Calendar/holiday based scheduling c. Temporary schedule overrides d. Adaptive optimum start/stop e. Chiller and boiler reset/optimization f. Demand limiting/load shedding g. Enthalpy switchover (economizer) h. Temperature compensated duty cycling i. CFM tracking j. Tenant billing k. Hot water/outdoor air/chilled water/condenser water reset l. Run time totalization m. Alarm detection and dial out n. Night setback o. Historical trending 5. Passwords: The access software shall provide at least 5 levels of passwords. Each level shall be user definable. 6. Help Menu: On-line location sensitive help shall be provided for each menu item, describing the consequences of making the highlighted menu selection. 7. Login: A user definable login message shall be displayed every time the workstation is connected to a system controller. 8. Alarms: The network controller shall be capable of comparing analog and digital readings to predetermined high and low limits and annunciate each time a value enters or returns from an alarm condition. Unique high and low limits shall be supplied for each analog point in the network. The network shall be capable of suppressing selected alarm reporting when the primary equipment from which the alarm point is based is in the inactive state. The alarm features of the system controller software shall, as a minimum, provide the following: a. Digital, analog, and hi/lo settings and deadband b. Sliding alarm limits c. Conditional alarming d. Alarm inhibiting through feedback loop e. Fluttering alarm suppression f. Separate tailored alarm messages of 70 characters each g. Auto dial of any alarm condition to a minimum of 25 telephone numbers 9. On-Line Testing: The network shall have the capability to allow the operator to design, test, and implement desired control strategies on-line. 10. Communication Diagnostics: The network controller software shall be capable of self- diagnosing failure automatically without necessary query by the operator. In the event of communications failure or limited power failure, the network shall be capable of both notifying a local operator of the specific occurrence, as well as communicating to a remote operator, either by the internet or auto dialing the condition. In addition to automatic self-diagnostics, each network controller shall maintain communications statistics on zone and local controller communications. These statistics shall tabulate total communications attempted versus successful and unsuccessful communications by unit number. An option shall exist to reset communications statistics to zero (0) at any time. 11. Trending: Each network controller shall have the capability to simultaneously trend a minimum of 60 combined analog and digital points. Adjustable sampling intervals for each trend from 60 seconds to 10 days shall be possible. Each trend shall be capable of being automatically started or stopped, based on time of day, externally sensed points, alarms, or a calculated value. Upload of trend data to the system workstation shall be automatically performed at any time during the sampling period. The uploaded trend data shall be fully compatible with Microsoft Excel. INSTRUMENTATION AND CONTROL FOR HVAC 23 0900-9 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 2.05 LOCAL CONTROLLERS A. General: Each HVAC local controller shall be a stand-alone DDC controller. The local controllers shall be a local control loop microprocessor-based controller installed at each HVAC system; i.e., air handling unit, heating boiler. Each controller shall be fully programmable, contain its own control programs and will continue to operate in the event of a failure or communication loss to its associated network controller. Both the operating system of the controller, plus the application program for the controller, shall be stored in non-volatile, FLASH memory. Controllers shall contain enough memory for the current application, plus required history logging, plus a minimum of 20% additional free memory. All controllers with volatile memory shall have a battery for 72 hour database backup. Each controller shall be addressable by a workstation or a portable service tool. B. Each local controller provided must be a BACnet device, supporting the BACnet Application Specific Controller (B-ASC) profile. Controllers that support a lesser profile such as B-SA are not acceptable. Local controllers shall be tested and certified by the BACnet Testing Laboratory (BTL) as Advanced Application Specific Controllers (B-ASC). C. Hardware Specifications 1. Scan: Controller shall continuously scan and maintain the most recent data in RAM for retrieval by a remote workstation and by the local controller software programs. 2. Isolation: Control, communication, and power circuits for each controller shall be individually electrically isolated to protect against transients, spikes, and power surges. 3. Database: All field control databases shall be entered, changed or downloaded to the local controllers via a portable service tool or system workstation. 4. Local Display: The controller shall have a local display and keypad that allows the user to view and change setpoints directly at the controller. 5. Auto-Calibration: All inputs shall feature an auto-calibrate function to eliminate sensing errors. 6. Input/Output Modules: Provide the following input/output capabilities: a. Universal inputs which can accept industry standard analog signals (4-20 Ma, 0-5 VDC, etc.) and binary contact closures. b. Digital outputs may be latched or momentary contact type. c. Analog outputs shall have a 1% resolution over total output span of 100%. 7. Expandability: For larger controller (16 base inputs and up), provide input and output expansion through the use of plug-in modules. At least two I/O modules must be capable of being added to the base local controller. 8. Automatic Restart After Power Failure: Upon restoration of power after an outage, the controller shall automatically and without human intervention: update all monitored functions; resume operation based on current, synchronized time and status, and implement special start-up strategies as required. 9. Real Time Clock (RTC): All local controllers shall have a real time clock in either hardware or software. The accuracy shall be within 10 seconds per day. The RTC shall provide the following information: time of day, day, month, year, and day of week. Each local controller shall receive a signal, every hour, over the network from the NRC, which synchronizes all local controllers’ real time clocks. D. Local Controller Software: Provide complete controller software to execute all HVAC system local loop controls functions. 1. Control Parameters: The software blocks in the local controller shall produce all of the necessary reverse acting and/or direct acting PI signals as required by the control sequence. The proportional and integral values which make up the PI output value shall be readable and modifiable, at the system workstation or the portable service tool to facilitate tuning of control loops. INSTRUMENTATION AND CONTROL FOR HVAC 23 0900-10 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 2. Networking: Each input, output, or calculation result shall be capable of being assigned to the system controller for system networking. The local controller shall also provide the ability to download and upload configuration data, both locally at the controller and via the DDC communications network. 3. Programming Functions: Provide the following standard DDC loop programming functions: a. Control block programming b. PI or PID control c. Serial load staging d. Binary load staging e. Analog load staging f. Master-submaster routines g. Anti-windup for integrated loops 2.06 ZONE CONTROLLERS A. General: Each HVAC zone controller shall be a stand-alone DDC controller. The controller shall include all hardware and software required for communications with the system controller. Unless noted otherwise, an individual zone controller shall be dedicated for each zone terminal device. B. Each local controller provided must be a BACnet device, supporting the BACnet Advanced Application Specific Controller (B-ASC) profile. Controllers that support a lesser profile such as B- SA are not acceptable. Local controllers shall be tested and certified by the BACnet Testing Laboratory (BTL) as Advanced Application Specific Controllers (B-ASC). C. Programs: The control program shall reside in the zone controller. The application program shall be maintained in ROM. The default database, ie. setpoints and configuration information, shall be stored in EEPROM. Controllers requiring local setting of potentiometers or dip switches are not acceptable. D. Stand-Alone: Controllers requiring the application or database to be downloaded from a host or share processing with a "master controller" shall not be acceptable. After a power failure the zone controller must run the control application using the current setpoints and configuration. E. Communications: Communication to the system controller shall be 1200-baud asynchronous. F. Input/Output: Each controller shall have a minimum of 8 inputs. Each input shall be usable as a discrete or 0-5 volt analog or digital input. Inputs shall be individually electrically isolated from other inputs, outputs, communications, and power. All inputs shall feature an auto-calibrate function to eliminate sensing errors. G. Each controller shall have a minimum of six digital outputs. Outputs shall be individually electrically isolated from the other outputs, inputs, communications and power. Controller shall be available with a minimum of two (2) analog outputs. H. Connections: All electrical connections shall be made to the combination terminal strip and base assembly. To insure long term reliability, all electrical terminations shall be screw type. I. The logic card, containing all active electrical components, shall be easily installable and removable from the wiring base, without the use of tools or the removal of any electrical wiring. Products that require disconnection of wiring from logic card before removal will be required to supply and install a quick disconnect type inter-connection. INSTRUMENTATION AND CONTROL FOR HVAC 23 0900-11 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 2.07 FIELD DEVICES A. Temperature Sensors: All temperature devices shall use precision thermistors accurate to +/- 1 degree F over a range of –30 to 230 degrees F. Space temperature sensors shall be accurate to +/- 1 degree F over a range of 40 to 100 degrees F. 1. Standard space sensors shall be available in an off white enclosure for mounting on a standard electrical box. Space sensor shall have a portable service tool jack. a. The sensor housing shall feature both a mechanism for adjusting the space temperature setpoint, as well as a push button for selecting after hours operation. b. The sensor shall incorporate either an LED or LCD display for viewing the space temperature, setpoint and other operator selectable parameters. Using built in buttons, operators shall be able to adjust setpoints directly from the sensor. 2. Duct temperature sensors shall incorporate a thermistor bead embedded at the tip of a stainless steel tube. Probe style duct sensors are useable in air handling applications where the coil or duct area is less than 14 square feet. Averaging sensors shall be employed in ducts which are larger than 14 square feet. 3. Immersion sensors shall be employed for measurement of temperature in all chilled and hot water applications as well as refrigerant applications. Thermal wells shall be brass or stainless steel for non-corrosive fluids below 250 degrees F and 300 series stainless steel for all other applications. 4. Freezestat: Duct temperature sensor as described above with appropriate temperature range for the service. 5. A pneumatic signal shall not be allowed for sensing temperature unless otherwise specified. B. Humidity Sensors: Humidity sensors shall be of the solid-state type using a hydroscopic polymer or thin film capacitive sensing element. The sensor shall vary the output voltage with a change in relative humidity. Sensors shall be available for room, outside air or duct mounting, with a minimum range of 0% - 100% +/- 3%. C. Differential Pressure Sensor: Differential pressure sensor shall be temperature compensated and shall vary the output voltage with a change in differential pressure. Sensing range shall be suitable for the application with accuracy of +/- 2% of range and non-repeatability of +/- 0.05% of range. Sensor shall be capable of withstanding up to 150% of rated pressure without damage. 1. Air pressure measurements in the range of 0 to 10” water column will be accurate to +/- 1% using a solid-state sensing element. 2. Differential pressure measurements of liquids or gases shall be accurate to +/- 0.5% of range. The housing shall be Nema 4 rated. D. Current Sensors: Current status switches shall be used to monitor fans, pumps, motors and electrical loads. Current switches shall be available in solid and split core models, and offer either a digital or an analog signal to the automation system. E. Measurement of three phase power shall be accomplished with a kW/kWH transducer. This device shall utilize direct current transformer inputs to calculate the instantaneous value (kW) and a pulsed output proportional to the energy usage (kWH). F. Control Valves: Valves shall be packless, modulating, electrically or magnetically actuated. These valves shall have true linear flow characteristics in relationship to valve opening. Control valves shall meet the heating and cooling loads specified, and close off against the differential pressure conditions within the application. Valves should be sized to operate accurately and with stability from 10 to 100% of the maximum design flow. These valves shall carry a full (3) three year parts and labor warranty. This warranty shall cover all required maintenance and failures. In the event of a failure the valve and actuator shall be replaced and reinstalled, by DDC Contractor, at no cost to the building owner. INSTRUMENTATION AND CONTROL FOR HVAC 23 0900-12 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 1. Terminal Unit Valves: Valves shall be sized for a 3 to 5 psi drop. Valve body shall be nickel plated brass, rated at 125 psig and shall have a control rangeability of 100 to 1. Valves 2 inches and smaller shall be screwed type with NPT fittings. Valves 2-1/2 inches and larger shall be flanged. All two-position valves shall be full port valves. 2. Hot water valves shall be rated to 240 deg. F and 125 psig. Valves shall be sized for a 3 to 5 psi pressure drop. Valve body shall be cast iron with a chrome nickel steel seat and inner valve material. Valves 2 inches and smaller shall be screwed type with NPT fittings. Valves 2-1/2 inches and larger shall be flanged. 3. Butterfly Valves: 2-way and 3-way butterfly valves shall be cast iron valve body, with stainless steel stem, and available with disc seal for bubble-tight shut off. G. Pressure Independent Control Valves: Valves shall be sized for a 3 to 5 psi drop. Valve body shall be cast iron, steel or bronze and rated for 150 psi working pressure. All internal parts shall be stainless steel, steel, Teflon, brass, or bronze. The flow through the valve shall not vary more than +/- 5% due to system pressure fluctuations. A flow tag shall be furnished with each valve. The rangeability of the control valves shall be a minimum of 100 to 1. H. Control Dampers: Motorized damper, unless otherwise specified elsewhere, shall be furnished by DDC Contractor. Dampers are to be installed by HVAC Contractor under the supervision of DDC Contractor. All blank-off plates and conversions necessary to install smaller than duct size dampers are the responsibility of Sheet Metal Contractor. 1. Damper frames are to be constructed of 13 gauge galvanized sheet steel mechanically joined with linkage concealed in the side channel to eliminate noise as friction. Compressible spring stainless steel side seals, and acetal or bronze bearings shall also be provided. 2. Damper blade width shall not exceed eight inches and the blade length shall not exceed 48 inches. Seals and 3/8 inch square steel zinc plated pins are required. 3. Provide opposed blade dampers for modulating applications and parallel blade for two position control. I. Damper Actuators: Damper actuators shall be electronic, and shall be direct coupled over the shaft, without the need for connecting linkage. 1. The actuator shall have electronic overload circuitry to prevent damage. For power- failure/safety applications, an internal mechanical, spring return mechanism shall be built into the actuator housing. 2. Actuators shall be available with spring return to the normal position when required. 3. Actuators shall have a position indicator for external indication of damper position. 4. Actuators shall have manual override capability without disconnecting damper linkage. J. Airflow Measuring Stations: Provide a thermal anemometer using instrument grade self heated thermistor sensors with thermistor temperature sensors. 1. The flow station shall operate over a range of 0 to 5,000 feet/min with an accuracy of +/- 2% over 500 feet/min and +/- 10 ft/min for reading less than 500 feet/min. 2. The output signal shall be linear with field selectable ranges including 0-5 VDC, 0-10VDC and 4-20 mA. 2.08 PORTABLE SERVICE TOOL A. General: Provide a minimum of one (1) portable service tool with the system to allow commissioning, adjustment, and diagnosis of the zone and local controllers. If different types of portable service tools are required for programming of zone controllers versus local controllers, provide one (1) of each type. All programming shall utilize English language descriptors. Manufacturers which utilize portable service tools which require the user to translate HEX decimal, binary, or numerical syntax shall provide one (1) laptop computer with the hardware and software required to meet the specified programming capabilities. INSTRUMENTATION AND CONTROL FOR HVAC 23 0900-13 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 B. The portable service tool shall have the following capabilities: 1. Readout of each input and output value. 2. Database programming of input and output definitions, setpoints, and control parameters. 3. Manual override of all digital outputs, analog outputs, and application modes (occupied/unoccupied/standby) and control modes (heating/cooling/deadband). 4. Download of all stored database parameters with a single keystroke for cloning typical controllers. PART 3 - EXECUTION 3.01 PROJECT MANAGEMENT A. Provide a project manager who shall, as a part of his duties, be responsible for the following activities: 1. Coordination between Contractor and all other trades, Owner, local authorities and the design team. 2. Scheduling of manpower, material delivery, equipment installation and checkout. 3. Maintenance of construction records such as project scheduling and manpower planning for project coordination and as-built drawings. 3.02 INSTALLATION METHODS A. Install systems and materials in accordance with manufacturer's instructions, rough-in drawings and equipment details. Install electrical components and use electrical products complying with requirements of applicable Division-26 sections of these specifications. B. The term "control wiring" is defined to include providing of wire, conduit, and miscellaneous materials as required for mounting and connecting electric or electronic control devices. C. Number-code or color-code conductors, excluding those used for individual zone controls, appropriately for future identification and servicing of control system. D. All line voltage power wiring required because of substitution of equipment specified in this section, shall be provided by this section. 3.03 SYSTEM ACCEPTANCE A. General: The system installation shall be complete and tested for proper operation prior to acceptance testing for the Owner's authorized representative. A letter shall be submitted to the Design Professional requesting system acceptance. This letter shall certify all controls are installed and the software programs have been completely exercised for proper equipment operation. Acceptance testing will commence at a mutually agreeable time within ten (10) calendar days of request. When the field test procedures have been demonstrated to the Owner's representative, the system will be accepted. The warranty period will start at this time. B. Field Equipment Test Procedures: DDC control panels shall be demonstrated via a functional end to end test such that: 1. All output channels shall be commanded (on/off, stop/start, adjust, etc.) and their operation verified. 2. All analog input channels shall be verified for proper operation. 3. All digital input channels shall be verified by changing the state of the field device and observing the appropriate change of displayed value. INSTRUMENTATION AND CONTROL FOR HVAC 23 0900-14 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 4. If a point should fail testing, perform necessary repair action and retest failed point and all interlocked points. 5. Automatic control operation shall be verified by introducing an error into the system and observing the proper corrective system response. 6. Selected time and setpoint schedules shall be verified by changing the schedule and observing the correct response on the controlled outputs. C. As-Built Documentation: After a successful acceptance demonstration, Contractor shall submit as-built drawings of the completed project for final approval. After receiving final approval, supply "3" complete 11 x 17 as-built drawing sets to the Owner. As-built sets printed using high resolution laser printer may be provided on 8-1/2" x 11" drawings. D. Operation and Maintenance Manuals: Submit three copies of operation and maintenance manuals. Include the following: 1. Manufacturer's catalog data and specifications on sensors, transmitters, controllers, control valves, damper actuators, gauges, indicators, terminals, and any miscellaneous components used in the system. 2. An operator's manual which will include detailed instructions for all operations of the system. 3. An operator's reference table listing the addresses of all connected input points and output points. Settings shall be shown where applicable. 4. A programmer's manual which will include all information necessary to perform programming functions. 5. A language manual which will include a detailed description of the language used and all routines used by the system. 6. Flow charts of the overall system configuration. 7. Complete program listing file and parameter listing file for all programs. 8. A copy of the warranty. 9. Operating and maintenance cautions and instructions. 10. Recommended spare parts list. E. As-built drawings and sequence of operation to be provided on back of door at each control panel for field reference. F. Upon completion of project, DDC Contractor shall adjust and validate all thermostats, controllers, valves, damper operators, relays, instruments and devices provided under this section in conjunction and coordinated with Section 23 0593 - Testing, Adjusting and Balancing for HVAC. 3.04 TRAINING A. Contractor shall provide to the Design Professional a training class outline prior to any scheduled training. B. Training sessions shall be provided for the Owner's personnel by factory trained control engineers and technicians. Refer to Section 23 0010 - HVAC General Provisions for minimum times. C. The course shall include instruction on specific systems and instructions for operating the installed system to include as a minimum: 1. HVAC System overview. 2. Operation of Control System. 3. Function of each Component. 4. System Operating Procedures. 5. Programming Procedures. 6. Maintenance Procedures. INSTRUMENTATION AND CONTROL FOR HVAC 23 0900-15 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 3.05 WARRANTY A. Warranty: The control system shall be warranted to be free from defects in both material and workmanship for a period of one (1) year of normal use and service, with the exception of control valves with a five (5) year warranty. This warranty shall become effective the date the owner accepts the system. 3.06 SPARES A. Provide one each of the following spare parts: 1. Room Sensor 2. Velocity Sensor 3. Zone Controller Board (one of each type) 4. Local Controller Board (one of each type) END OF SECTION 23 0900 INSTRUMENTATION AND CONTROL FOR HVAC 23 0900-16 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 SECTION 23 3113 - METAL DUCTS PART 1 - GENERAL 1.01 RELATED WORK A. The requirements of Division 00 - Procurement and Contracting Requirements, Division 01 - General Requirements and Section 23 0010 - HVAC General Provisions are applicable to work required of this Section. 1.02 DESCRIPTION OF WORK A. Provide material, equipment, labor and supervision necessary to fabricate and erect low pressure ductwork as required by the drawings and this section. B. Low pressure ductwork shall apply to the following: 1. Supply: Downstream of terminal units, less than 1" static pressure. 2. Return: Upstream of terminal units, less than 1" static pressure. C. High velocity ductwork shall apply to the following: 1. Supply & Ventilation: Upstream of terminal units, less than 6" static pressure. 2. Return: Downstream of terminal units, less than 6" static pressure. 1.03 DEFINITIONS A. Conditioned Space: An area inside the building which is heated and/or cooled. B. Tempered Space: an area inside the building which is not directly heated or cooled, but is adjacent to a heated or cooled space with no insulation separating the two spaces (e.g., ceiling plenums). C. Untempered Space: an area inside the building which is not conditioned and is not tempered (e.g., attic spaces). D. Exterior: An area outside the building (e.g., roof mounted items). 1.04 QUALITY ASSURANCE A. Duct and plenum construction, metal gauges, reinforcing, methods of supporting and hanging and other sheet metal work as called for shall be in accordance with the following standards: 1. "SMACNA HVAC Duct Construction Standards", Second Edition 1995, by the Sheet Metal and Air Conditioning Contractors National Association (SMACNA). B. Low pressure ductwork shall conform to the following SMACNA pressure classifications. Refer to plans for ductwork designations. Supply & Relief - Rectangular .... ...................... 1" positive Supply & Relief – Round ............ ...................... 2" positive Return & Outdoor - Rectangular ....................... 1" negative Return & Outdoor - Round ................................ 2" negative METAL DUCTS 23 3113-1 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 C. High velocity ductwork shall conform to the following SMACNA pressure classifications. Supply & Ventilation - Rectangular .................... 4" positive Supply & Ventilation - Round ............................. 4" positive Return - Rectangular ......................................... 4" negative Return - Round .................................................. 4" negative D. NFPA Compliance: All liner and covering materials shall have maximum UL Flame Spread Index of 25, and maximum Smoke Developed Index of 50, and shall meet all requirements of NFPA-90A. 1.05 SUBMITTALS A. Shop Drawings: 1. Submit 1/4 scale shop fabrication shop drawings. 2. Submit shop drawings of elbows and fittings showing static pressure loss charted for air quantities involved in each. B. Two copies of duct leak testing results. C. Submit weld sample, welding information, and welders’ certification for weld stainless steel ductwork. Submittal to include the following information: 1. Welder name(s): 2. Certification: 3. Metal type and gauge: 4. Joint preparation: 5. Welding process: 6. Equipment utilized: 7. Filler specifications: 8. Shield gas: D. Product Data: Submit manufacturer's specifications and installation instructions for each type of mechanical insulation. Submit schedule showing manufacturer's product number, thickness, and furnished accessories for each mechanical system requiring insulation. E. Maintenance Data: Submit maintenance data and replacement material lists for each type of mechanical insulation. Include this data in maintenance manual. F. Certifications: Submit certifications or other data as necessary to show compliance with these specifications and governing regulations. Include proof of compliance for test of products for fire rating, corrosiveness, and compressive strength. G. Submit product data for kitchen exhaust ductwork. 1.06 REGULATORY REQUIREMENTS A. National Fire Protection Association, NFPA 90A: Air Conditioning and Ventilating Systems. B. Underwriter's Laboratories, UL 181: Factory-Made Duct Materials and Air Duct Connections. 1.07 DELIVERY, STORAGE, AND HANDLING A. Protect shop-fabricated ductwork, accessories and purchased products from damage during shipping, storage and handling. 1. Stored materials subject to rejection due to damage. METAL DUCTS 23 3113-2 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 B. Deliver insulation, coverings, cements, adhesives, and coatings to site in containers with manufacturer's stamp or label, affixed showing fire hazard ratings of products. C. Protect insulation against dirt, water, and chemical and mechanical damage. Do not install damaged insulation; remove from project site. PART 2 - PRODUCTS 2.01 ACCEPTABLE MANUFACTURERS A. All sheet metal work shall be constructed of prime quality resquared tight coat galvanized steel, except where other type material is specified. Manufacturer's name and U.S. gauge number shall appear on each sheet. B. Duct Lining Materials 1. Certain-Teed 2. Owens Corning Fiberglass 3. Johns-Manville 4. PPG 5. Knauf 2.02 GALVANIZED STEEL DUCTWORK – LOW VELOCITY A. General: Provide factory-fabricated or shop fabricated duct and fittings. B. Materials: Galvanized sheet steel complying with ANSI/ASTM A527, lockforming quality, with ANSI/ASTM A525, G90 zinc coatings, mill phosphatized. C. Gauge: Comply with code requirements for minimum gauge thickness for various sizes. D. Fittings: 1. Construct branches, bends, and elbows with centerline radius of not less than duct 1.0 times the width (diameter), where space conditions will not permit this radius or where indicated on drawings, square elbows with air turns shall be used. 2. Slopes for transitions or other changes in dimension shall be minimum 1:3. 3. Longitudinal seams shall be Pittsburgh Lock or snaplock equal per SMACNA. Lateral seams shall be slip drive or standing. Slip seams and sheet metal screws not permitted. 2.03 GALVANIZED STEEL DUCTWORK – HIGH VELOCITY A. Single-Wall Ducts: Spiral-wound, zinc-coated steel with individual formed steel tees and elbows. 1. Single-Wall Round Duct Gauges: Minimum USS Gauge Duct Diameter (Inches) Spiral Lock Seam Up to 8 26 9 to 22 24 23 to 36 22 37 to 50 20 51 to 60 18 61 and Over 16 METAL DUCTS 23 3113-3 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 2. Single-Wall Oval Duct Gauges, Factory-Made with Spiral Lock Seams: Maximum Width Minimum in Inches USS Gauge Reinforcement Longitudinal Centers Up to 10 24 None 11 to 20 22 4 foot centers 21 to 40 18 2 x 2 x 1/8 angle 2.5 foot centers 41 to 72 16 2 x 2 x 3/16 angle 2 foot centers B. Flexible Ductwork, Insulated: Suitable for -20F to 220F temperature range and minimum 12 inches w.c. working pressure. 1. Acceptable Manufacturers: a. Flexmaster: Type 3 b. Genflex: IHPL (1-1/2" thick insulation) c. Thermaflex: M-KC (1-1/2" thick insulation) 2. Inner Liner: Glass fiber, PVC coating, factory-clinched in cold-rolled galvanized steel spiral, or with spiral wire permanently bonded to fabric, UL listed, complying with NFPA 90. 3. Outer Jacket: 1-1/2" thick, 3/4 lb. fibrous glass, with flame-resistant PVC vapor barrier. C. Access Panels: Shall be of same material as ducts in which they are installed, fabricated of two thicknesses of not less than 24 gauge, with 1" thick rigid glass fiber filler. Provide sheet metal frame, air tight gasket equal to United McGill AOBXFDDC. D. Fabrication 1. Directional Change: a. Construct tees, bends, and elbows with radius minimum 1.0 times width of duct on center line. 2. Size Change: a. Increase and decrease duct sizes gradually, not exceeding 15, unless otherwise noted on Drawings. 3. Seams and Joints: In accordance with SMACNA standards. a. Rigidly construct metal ducts with joints mechanically tight, substantially airtight, braced and stiffened so not to breathe, rattle, vibrate or sag. b. Where spiral ductwork is exposed, assemble duct to duct joints with spiral seam following continuous helicoid pattern across joints. 2.04 DUCT SEALING – LOW VELOCITY A. All joints in low pressure duct work shall be sealed with Foster 32-14 or DuctMate ProSeal. Apply and install joint sealer per manufacturer’s recommendations. In general, apply to male end of coupling and/or interior of female fitting. After connection, brush sealant over the assembled joint and screws with a 2” to 3” wide band. Sealant shall be allowed to set for 48 hours before any air pressure is put on system. All tie bars, bolts and rivets shall be sealed with the specified sealant. Sealant as manufactured by Minnesota Mining No. 800 or United Sheet Metal will be considered equal. METAL DUCTS 23 3113-4 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 B. Alternate Sealing System: 1. Transverse duct joints may be made with the Ductmate System or an approved equal. 2. The installation of the Ductmate System shall be in accordance with the manufacturer’s printed instruction and installation manuals. 3. The standard Ductmate System joint is the equivalent of a SMACNA "J" connection. The Ductmate-JR System joint is the equivalent of a SMACNA "E" connection. Construction of the duct, such as gauge, reinforcing, etc. shall be as indicated in the addendum to the SMACNA manuals as provided by the manufacturer and as tested by Pittsburgh Testing Laboratory. C. Duct Sealing Requirements: SMACNA Seal Class C. 2.05 DUCT SEALING - HIGH VELOCITY A. All joints in low pressure duct work shall be sealed with Foster 32-14 or Ductmate ProSeal. Apply and install joint sealer per manufacturer’s recommendations. In general, apply to male end of coupling and/or interior of female fitting. After connection, brush sealant over the assembled joint and screws with a 2” to 3” wide band. Sealant shall be allowed to set for 48 hours before any air pressure is put on system. All tie bars, bolts and rivets shall be sealed with the specified sealant. Sealant as manufactured by Minnesota Mining No. 800 or United Sheet Metal will be considered equal. B. Alternate Sealing System: 1. Transverse duct joints may be made with the Ductmate System or an approved equal. 2. The installation of the Ductmate System shall be in accordance with the manufacturer’s printed instruction and installation manuals. 3. The standard Ductmate System joint is the equivalent of a SMACNA "J" connection. The Ductmate-JR System joint is the equivalent of a SMACNA "E" connection. Construction of the duct, such as gauge, reinforcing, etc. shall be as indicated in the addendum to the SMACNA manuals as provided by the manufacturer and as tested by Pittsburgh Testing Laboratory. C. Duct Sealing Requirements: SMACNA Seal Class A. 2.06 DUCT LINER A. Lining materials shall be Type 'A' Duct Liner, Certain-Teed Coated Ultralite 150, one and one half (1 1/2) pounds per cubic foot density. B. Unless noted otherwise, all ductwork and accessories shall be either lined or covered as scheduled on plans. If type or thickness is not indicated, it shall be 1-1/2” covering. PART 3 - EXECUTION 3.01 INSTALLATION A. Assemble and install ductwork in accordance with recognized industry practices which will achieve airtight and quiet systems, capable of performing each indicated service. 1. Install each run with minimum joints. METAL DUCTS 23 3113-5 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 2. Align ductwork accurately at connections and with internal surfaces smooth. 3. Support ducts rigidly with suitable ties, braces, hangers and anchors of type which will hold ducts true-to-shape and prevent buckling and vibration. B. Ducts shall be installed following essentially lines indicated on drawings, install offsets, angles and transitions as may be required to avoid interferences with other work. Maintain full capacity of ducts at offsets, angles and transitions except where drawings indicate use of reducing or increasing transitions. 1. General: Each duct section shall be rigidly supported from structure. Attach hangers to structure with expansion plugs, concrete inserts, beam clamps or other approved means. Rubber in-shear isolators shall be installed in hangers for all ducts in equipment rooms, to prevent vibration transmission to the structure. C. Install hangers and supports in accordance with SMACNA Standards general locations: 1. Install hangers close to transverse joints of main ducts and branches, clinch collar branch connections and the first branch elbows after nested splits. 2. Locate hangers of duct penetrating walls or partitions as though the walls will contribute no support to the duct. 3. Install hangers in pairs on exact opposite sides of duct. 4. Maintain hanger spacing intervals less than, equal to, but not greater than the specified maximums. 5. Install hangers at the midpoint of small and medium size horizontal vaned square elbows. On wide vaned square elbows, install additional hangers at maximum allowable intervals or less measured along the heel lines of the elbows. 6. Provide a set of hangers at the midpoint of small and medium size horizontal radius elbows. Install one or more supplementary hangers, as necessary, along the inside and outside arcs of large radius elbows of any angle whenever the lengths of these arcs exceed the maximum hanger spacing length for that particular size duct. 7. Provide at least one set of hangers for short duct branches 3 feet or less in length. 8. Provide each duct riser with a minimum of two supports completely spanning the shaft opening at each floor. One pair of supports may be used to support more than one duct riser, provided that the strength of the supports is increased appropriately and proper additional supplementary steel is used at the extra risers. 9. Support duct risers, located between floors that are more than 15 feet high, at each floor and halfway points between floors. The distance between intermediate supports on very high floors should not exceed 12 feet. Intermediate hangers may be supported from an adjacent wall or hung by rods from supports on the floor above. 10. Provide one or more sets of hangers for equipment in duct runs such as heating coils, heat pumps, etc., as recommended by their manufacturers. D. Locate duct hangers approximately: 1. 2 to 24 inches from flexible connections of fans. 2. 2 to 24 inches from the outlets or flexible connects of VAV control units or mixing boxes. METAL DUCTS 23 3113-6 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 3. 12 to 36 inches from the main duct to the first hanger of long branch ducts. 4. 2 to 12 inches from the ends of all branch ducts and linear diffuser plenums. 5. 2 to 24 inches from fire damper breakaway joints. 6. 0 inches to half the duct width plus 2 inches from the vertical centerline of the lower elbow of short vertical offsets made with vaned square elbows. The width refers to the dimension of the elbow in the plane of the turn. 7. 0 inches to half the duct width plus 2 inches from the vertical centerline of the bottom and top elbows of vaned square elbow offsets over 8 feet high. 8. One-eighth of the arc in from the ends of bottom and top radius elbows of vertical offsets longer than 8 feet. Short vertical offsets require hangers at the bottom elbow. Likewise, sloping offsets need at least one set of hangers at their lower radius elbow. 9. 6 to 12 inches from transverse joints of ducts whose lengths are the same as specified hanger intervals. 10. 6 to 12 inches from one side of walls or partitions penetrated by ducts. E. Maximum permitted hanger spacing: 1. Ducts with areas up to 4 square feet may have their hangers spaced up to 8 feet apart. 2. Ducts with areas 4.1 to 10 square feet may have their hangers spaced not more than 6 feet apart. 3. Ducts with areas over 10 square feet may have their hangers located up to 4 feet apart. F. Provide and install locking manual volume dampers in all duct systems as required for controlling air volumes to trunk ducts, branch ducts, outlets and inlets. Provide and install additional volume dampers as required by Testing and Balancing Contractor for balancing of system. G. Duct sizes shown on drawings are net inside dimensions and sheet metal size shall be increased to allow for duct linings. H. Install as indicated on the drawings all duct mounted equipment as specified in other sections. I. Install eccentric reducers with tops of both duct sizes flush to maintain maximum ceiling space below ducts. J. Openings: 1. Provide in ductwork to accommodate access doors, temperature control components and fire dampers. 2. Install access panels for inspection and servicing of all duct mounted equipment: reheat coils, sound attenuators, motorized dampers, smoke and fire dampers. 3. Provide pitot tube openings for testing of systems, complete with metal cap, with spring device or screw to ensure against air leakage. 4. Where openings are provided in insulated ductwork, install insulation materials inside metal collar. METAL DUCTS 23 3113-7 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 K. Locate ducts with sufficient space around equipment to allow normal operating and maintenance activities. L. Connections: 1. Connect duct to equipment with flexible fabric, sheet metal clips, screws and washers. 2. At each point where ducts pass through partitions, provide sleeve with space between duct and sleeve packed with insulation and sealed. M. Where ducts pass through fire-rated walls, partitions, floors, and ceilings, seal openings in accordance with Specification Section 23 0500 - Common Work Results for HVAC. 3.02 DUCT LINER APPLICATION A. Apply duct liner with coated or surface designed to be exposed facing the air stream and adhered with 100% coverage of fire retardant adhesive. When width exceeds 12" or height exceeds 24", additionally secure liner with mechanical fasteners spaced 12" maximum centers. Fasteners shall start within 3" of leading edge of traverse joints. Coat all exposed joints and edges of traverse joints with a fire retardant adhesive. B. Duct sizes shown on drawings are net inside dimensions and sheet metal size shall be increased to allow for duct lining. 3.03 ADJUSTING AND CLEANING A. Cleaning: 1. Clean ductwork internally, as it is installed, of dust and debris. 2. Clean external surfaces of foreign substances which might cause corrosive deterioration of metal or where ductwork is to be painted. B. Temporary Closure: 1. At ends of ducts which are not connected to equipment or air distribution devices at time of ductwork installation, provide temporary closure of polyethylene film or other covering until time connections are to be completed. 3.04 DUCT LEAK TESTING – HIGH VELOCITY A. Tappable and Fume Hood Exhaust Ducts: 1. Testing shall be done before any exterior insulation is applied. 2. Fume hood and tappable exhaust ducts are intended to be virtually without leakage within the building. 3. Each exhaust system shall be capped at all inlet points and at the point of discharge to atmosphere. Fans, dampers and flexible connections shall be included in the testing. 4. Each duct system shall be pressurized to 7 inch water column and shall exhibit a leakage rate of less than 4 cfm regardless of system size or design flow rate. 5. Where several ducts discharge into a large collection duct, the collection duct and each individual exhaust duct may be treated as separate duct systems. METAL DUCTS 23 3113-8 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 B. HVAC Supply and Exhaust Ducts: 1. The system shall be leak tested at the design operating pressure with a total leakage not to exceed 2% of the total design cfm for the system. 2. Carefully seal off all openings (except one for connecting the test equipment) to the riser or run-out section to be tested. 3. Follow the recommendations of the manufacturer of the duct seal to allow for adequate cure time for sealer. 4. Connect test blower, calibrated orifice tube and manometers to the system in accordance with the test equipment manufacturer's recommendations. 5. When the specified test pressure is reached, allow the blower to run for one minute to make sure that the pressure is stabilized. 6. When the pressure is holding steady, measure the air flowing through the orifice tube assembly. 3.05 DUCTWORK APPLICATION SCHEDULE – LOW VELOCITY AIR SYSTEM MATERIAL HVAC Supply, Return Steel, Galvanized General Exhaust 3.06 DUCTWORK APPLICATION SCHEDULE – HIGH VELOCITY AIR SYSTEM MATERIAL HVAC Supply, Return and Steel, Galvanized General Exhaust END OF SECTION 23 3113 METAL DUCTS 23 3113-9 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 SECTION 23 7400 - PACKAGED OUTDOOR HVAC EQUIPMENT PART 1 - GENERAL 1.01 RELATED WORK A. The requirements of Division 00 - Procurement and Contracting Requirements, Division 01 - General Requirements and Section 23 0010 - HVAC General Provisions are applicable to work required of this section. 1.02 DESCRIPTION OF WORK A. Extent of packaged outdoor HVAC equipment work required by this section is indicated on drawings and schedules, and by requirements of this section. B. Types of rooftop heating and cooling units specified in this section include the following: 1. Packaged rooftop units. C. Refer to Division-26 sections for the following work; not work of this section. 1. Power supply wiring from power source to power connection on packaged outdoor HVAC equipment. Include required electrical devices except where specified as furnished, or factory-installed by manufacturer. D. Refer to other Division-23 sections for ductwork required external to rooftop heating cooling units for installation; not work of this section. 1.03 QUALITY ASSURANCE A. Regulatory Requirements: 1. ARI Compliance: Provide capacity ratings for packaged outdoor HVAC equipment in accordance with ARI standard 360 "Standard for Commercial and Industrial Unitary Air-Conditioning Equipment". 2. ASHRAE Compliance: Construct refrigerating system of packaged outdoor HVAC equipment in accordance with ASHRAE Standard 15 "Safety Code for Mechanical Refrigeration. 3. ASHRAE Compliance: Provide Energy Efficiency Ratio (EER) of packaged outdoor HVAC equipment not less than prescribed by ASHRAE 90A "Energy Conservation in New Building Design". 4. UL Compliance: Provide packaged outdoor HVAC equipment which are listed by UL and have UL label affixed. 5. AGA Compliance: Construct gas-fired furnace sections in accordance with AGA safety standards, and provide AGA label. B. Warranty: 1. Provide one year warranty on all parts except compressor. 2. Provide five year warranty on compressor. PACKAGED OUTDOOR HVAC EQUIPMENT 23 7400-1 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 1.04 SUBMITTALS A. Product Data: Submit manufacturer's equipment specifications, equipment capacities, ratings and selection points, fan curves with selection points clearly indicated and installation and start-up instructions. B. Shop Drawings: Submit manufacturer's assembly type shop drawings indicating dimensions, weight loadings, required clearances and method of assembly of components. C. Wiring Diagrams: Submit manufacturer's electrical requirements for power supply wiring to packaged heating and cooling equipment including control and thermostat wiring. Submit manufacturer's ladder-type wiring diagrams for interlock and control wiring. Clearly differentiate between portions of wiring that are factory installed and portions to be field installed. 1.05 PRODUCT DELIVERY, STORAGE AND HANDLING A. Handle packaged outdoor HVAC equipment and components carefully to prevent damage, breaking, denting, and scoring. Do not install damaged packaged outdoor HVAC equipment or components; replace with new. B. Store packaged outdoor HVAC equipment and components in clean dry place. Protect from weather, dirt, fumes, water, construction debris, and physical damage. C. Comply with manufacturer's rigging and installation instructions for unloading packaged outdoor HVAC equipment and moving them to final location. PART 2 - PRODUCTS 2.01 ACCEPTABLE MANUFACTURERS A. Packaged Rooftop Units 1. McQuay Group, McQuay-Perfex, Inc. 2. Trane Co., The 3. AAON 4. Johnson Controls 5. Carrier 2.02 ROOFTOP UNITS, 7-1/2 to 17-1/2 TONS A. General: Provide factory-assembled and tested rooftop units as indicated, designed for roof or slab mounting, consisting of compressors, condensers, evaporator coils, condenser and evaporator fans, refrigeration, electric heat coils and temperature controls, filters, and dampers. Provide capacities and electrical characteristics as scheduled. B. Casing: Provide manufacturer's standard casing construction, corrosion protection coating, and exterior finish. Provide removable panels and/or access doors for inspection and access to internal parts. Insulate casing with 1/2" thick minimum thermal insulation. Provide knockouts for electrical and piping connections. Provide condensate drain connection. C. Evaporator Fans: Provide forward-curved, centrifugal, belt-driven fans with adjustable sheaves and permanently lubricated motor bearings. Alternatively, provide backward-curved, direct drive plenum fan. Fan motors shall be inverter duty rated for use with variable speed drives. D. Condenser Fans: Provide propeller-type, direct-driven fans with permanently lubricated bearings. PACKAGED OUTDOOR HVAC EQUIPMENT 23 7400-2 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 E. Coils: For Evaporator and condenser, provide non-ferrous construction with aluminum plate fins mechanically bonded to seamless copper tubes; with brazed tubing joints. F. Compressors: Provide serviceable, semi-hermetic or fully hermetic compressors, in accordance with manufacturer's published technical data. Provide vibration isolators and crankcase heaters which de-energize during compressor operation. G. Safety Controls: provide the following controls, each designed for manual reset: 1. Low pressure cutout. 2. High pressure cutout. 3. Compressor motor overload protection. H. Heating Coils: Provide non-ferrous construction with aluminum plate fins mechanically bonded to seamless copper tubes; with brazed tubing joints. I. Economizer Control: Provide economizer control consisting of return and outside air dampers, outside air filter, power exhaust damper,fully modulating electric control system with dry bulb control to automatically use outdoor air for free cooling when outdoor air temperature is below 55 (adjustable). J. Accessories: Provide the following accessories as indicated and/or scheduled. 1. Roof Curb: Provide new adapter curbs to match existing roof penetrations. Coordinate requirements with General Contractor. PART 3 - EXECUTION 3.01 INSPECTION A. Examine areas and conditions under which rooftop heating and cooling units are to be installed. Do not proceed with work until unsatisfactory conditions have been corrected in manner acceptable to Installer. 3.02 INSTALLATION OF ROOFTOP HEATING AND COOLING UNITS A. General: Install rooftop heating and cooling units in accordance with manufacturers installation instructions. Install units plumb and level, firmly anchored in locations indicated and maintain manufacturer's recommended clearances. B. Support: Install units on roof curb, in accordance with National Roofing Contractor's Association (NRCA) installation recommendations. C. Controls: Install devices furnished by manufacturer but not specified to be factory-mounted. Furnish copy of manufacturer's wiring diagram submittal to Electrical Contractor for power wiring only. 1. Verify that wiring installation is in accordance with manufacturer's submittal and installation requirements of Division-26 sections. Do not proceed with equipment start-up until wiring installation is acceptable to equipment installer. D. Ductwork: Refer to Division 23, Section 23 3113 - Metal Ducts. Connect supply and return ducts to unit with flexible duct connections. Provide transitions to exactly match unit duct connection size. E. Gas Piping: Refer to Division 22, Section 22 1516 - Facility Natural Gas Piping. Connect gas piping to unit gas train with shutoff cock and drip leg. PACKAGED OUTDOOR HVAC EQUIPMENT 23 7400-3 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 F. Hot Water Piping: Refer to Division 23, Section 23 2113 - Hydronic Piping, Section 23 2500 - HVAC Water Treatment. Connect hot water supply and return piping to unit. Provide flexible pipe connectors in rise to rooftop unit. G. Start-up rooftop heating and cooling units in accordance with manufacturer's start-up instructions. Test controls and demonstrate compliance with requirements. Replace damaged or malfunctioning controls and equipment. 1. Balancing of unit systems is specified in Division 23, Section 23 0593 - Testing, Adjusting and Balancing for HVAC; not work of this section. H. Provide traps on condensate drains with a seal depth equal to unit total static pressure plus 1/2". 3.03 GROUNDINGS A. Provide positive equipment ground for rooftop heating and cooling unit components. 3.04 TRAINING OF OWNER'S PERSONNEL A. Provide services of manufacturer's technical representative to instruct Owner's personnel in operation and maintenance of rooftop heating and cooling units. 1. Schedule training with Owner, provide at least 7-day notice to Contractor and Owner of training date. 3.05 SPARE PARTS A. General: Furnish to Owner, with receipt, the following spare parts for each packaged heating and cooling unit: 1. One set of matched fan belts for each belt driven fan. 2. One set filters for each unit. END OF SECTION 23 7400 PACKAGED OUTDOOR HVAC EQUIPMENT 23 7400-4 Division 26 Electrical 26 Division CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 SECTION 26 0010 - ELECTRICAL GENERAL PROVISIONS PART 1 - GENERAL 1.01 RELATED DOCUMENTS A. Refer to Division 00 - Procurement and Contracting Requirements and Division 01 - General Requirements, which all apply to work under this section. 1.02 DESCRIPTION OF WORK A. Work shall include furnishing of all systems, equipment and material specified in this division and as called for on the electrical drawings, to include supervision, operations, methods and labor for the fabrication, installation, start-up and tests for the complete electrical installation. B. All elements of the construction shall be performed by workmen skilled in the particular craft involved, and regularly employed in that particular craft. C. All work shall be performed in a neat, workmanlike manner in keeping with the highest standards of the craft. 1.03 CODES AND STANDARDS A. All work shall be done in accordance with the applicable portion of the following codes and standards: 1. National Electrical Code 2. National Fire Protection Association 3. National Electrical Manufacturers Association 4. Standards of Institute of Electrical and Electronic Engineers 5. International Building Code 6. Occupational Safety and Health Act 7. Iowa Administrative Code 8. NECA Standards 9. Americans With Disabilities Act (ADA) B. All Contractors shall familiarize themselves with all codes and standards applicable to their work and shall notify Design Professional of any discrepancies between the design and applicable code requirements so that any conflicts can be resolved. Where two or more codes or standards are in conflict, that requiring the highest order of workmanship shall take precedence, but such questions shall be referred to Design Professional for final decision. 1.04 REQUIREMENTS & FEES OF REGULATORY AGENCIES A. Contractor shall comply with the rules and regulations of the local utility companies. He shall check with each utility company providing service to this project and determine or verify their requirements regarding incoming services. B. Meters for incoming services shall be selected based on the project requirements. Any questions concerning this shall be referred to Design Professional prior to bidding. Contractor shall provide the appropriate meter and associated materials if not furnished by the utility company. C. Secure all required permits and pay for all inspections, licenses and fees required in connection with the electrical work including State of Iowa Electrical Inspections. Contractor shall post all bonds and obtain all licenses required by the State, City, County and Utility. ELECTRICAL GENERAL PROVISIONS 26 0010-1 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 D. Contractor shall make all arrangements with each utility company and pay all service charges associated with new service. 1.05 ELECTRICAL DRAWINGS A. The electrical drawings indicate in general the building arrangement only. Contractor shall examine construction drawings to become familiar with the specific type of building construction, i.e. type of structural system, floors, walls, ceilings, room finishes and elevations. B. Drawings for the electrical work are in part diagrammatic, and are intended to convey the scope of the work and to indicate in general the location of equipment. C. Contractor shall layout his own work and shall be responsible for determining the exact locations for equipment and rough-ins and the exact routing of conduits and raceway so as to best fit the layout of the work. D. Contractor shall take his own field measurements for verifying locations and dimensions; scaling of the drawings will not be sufficient for laying out the work. E. Because of the scale of the drawings, certain basic items such as couplings, pull or splice boxes may not be shown, but where such items are required by code or by other sections of the specifications or where they are required for proper installation of the work, such items shall be furnished and installed. 1.06 ACTIVE SERVICES A. Contractor shall be responsible for verifying exact locations of all existing services prior to beginning work in that area. B. Existing active services, i.e., water, gas, sewer, electric, when encountered, shall be protected against damage. Do not prevent or disturb operation of active services which are to remain. C. When active services are encountered which require relocation, Contractor shall make request to authorities with jurisdiction for determination of procedures. D. Where existing services are to be abandoned, they shall be terminated in conformance with requirements of the authorities having jurisdiction. 1.07 SITE INSPECTION A. Contractor shall inspect the site prior to submitting bid for work to familiarize himself with the conditions of the site which will affect his work and shall verify points of connection with utilities, routing of outside conduit to include required clearances from any existing structures, trees or other obstacles. B. Extra payment will not be allowed for changes in the work required because of Contractor's failure to make this inspection. 1.08 COORDINATION AND COOPERATION A. It shall be Contractor's responsibility to schedule and coordinate his work with the schedule of the General Contractor so as to progress the work expeditiously, and to avoid unnecessary delays. ELECTRICAL GENERAL PROVISIONS 26 0010-2 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 B. Contractor shall fully examine the drawings and specifications for other trades and shall coordinate the installation of his work with the work of the other contractors. Contractor shall consult and cooperate with the other contractors for determining space requirements and for determining that adequate clearance is allowed with respect to his equipment, other equipment and the building. The Design Professional reserves the right to determine space priority of the contractors in the event of interference between piping, conduit, ducts and equipment of the various contractors. C. Conflicts between the drawings and the specifications or between the requirements set forth for the various contractors shall be called to the attention of the Design Professional. If clarification is not asked for prior to the taking of bids, it will be assumed that none is required and that the Contractor is in agreement with the drawings and specifications as issued. If clarification is required after the contract is awarded, such clarification will be made by the Design Professional and his decision will be final. D. Special care shall be taken for protection for all equipment. All equipment and material shall be completely protected from weather elements, painting, plaster, etc., until the project is substantially completed. Damage from rust, paint, scratches, etc., shall be repaired as required to restore equipment to original condition. E. Protection of all equipment during the painting of the building shall be the responsibility of the Painting Contractor, but this shall not relieve Contractor of the responsibility for checking to assure that adequate protection is being provided. Refer to Division 09 for painting protection. F. Where the final installation or connection of equipment in the building requires the contractor to work in areas previously finished by the General Contractor, the Electrical Contractor shall be responsible that such areas are protected and are not marred, soiled or otherwise damaged during the course of such work. Electrical Contractor shall arrange with the General Contractor for patching and refinishing of such areas which may be damaged in this respect. 1.09 OPENINGS, CUTTING AND PATCHING A. Refer to Division 1 for additional cutting and patching information. B. Conduits and sleeves passing through all fire or smoke rated floors, roofs, walls, and partitions shall be provided with firestopping. Space between wall/floor and conduit or sleeve shall be sealed with UL listed intumescent fire barrier material equivalent to rating of wall/floor. Where conduit or sleeves pass through floors, roofs, walls and partitions that are not fire or smoke rated, penetrations shall be sealed with grout or caulk. C. Existing Structure: 1. Contractor shall provide cutting, lintels and patching, and patch painting in the existing structure, as required for the installation of his work, and shall furnish lintels and supports as required for openings. 2. Cutting of structural support members will not be permitted without prior approval of the Design Professional. Extent of cutting shall be minimized; use core drills, power saws or other machines which will provide neat, minimum openings. 3. Patching shall match adjacent materials and surfaces and shall be performed by craftsmen skilled in the respective craft required. E. Conduits and wireways passing through all fire or smoke rated floors, roofs, walls, and partitions shall be provided with firestopping. Space between wall/floor and conduits, sleeves and/or wireways, shall be sealed with UL listed intumescent fire barrier material equivalent to rating of wall/floor. Where conduits, sleeves and/or wireways pass through floors, roofs, walls and partitions that are not fire or smoke rated, penetrations shall be sealed with grout or caulk. ELECTRICAL GENERAL PROVISIONS 26 0010-3 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 1.10 MATERIALS AND EQUIPMENT A. All materials and equipment shall be the standard product of a reputable U.S.A. manufacturer regularly engaged in the manufacture of the specified item unless authorized in writing by Design Professional. Where more than one unit is required of the same system, they shall be furnished by the same manufacturer except where specified otherwise. B. All material and equipment shall be installed in strict accordance with the manufacturer's recommendations. C. The equipment specifications cannot deal individually with any minute items such as parts, controls, devices, etc., which may be required to produce the equipment performance and function as specified, or as required to meet the equipment guarantees. Such items when required shall be furnished as part of the equipment, whether or not specifically called for. 1.11 SHOP DRAWINGS A. Contractor shall furnish, to the Design Professional, complete sets of shop drawings and other submittal data. Contractor shall review and sign shop drawings before submittal. B. Shop drawings shall be bound into sets and cover related items for a complete system as much as practical and shall be identified with symbols or "plan marks" used on drawings. Incomplete, piecemeal or unbound submittals will be rejected. C. Submittals required by the various sections of the Project Manual include, but are not necessarily limited to those identified in the submittal schedule below. D. After award of contract, the contractor shall provide a completed submittal schedule including dates that the submittals will be to the Design Professional for review. E. Submit required information on the following items: CERTIFICATE OTHER OF SYSTEM SPECDETAIL PRODINSTALL O & M (SEE DEMON- SECTIONEQUIPMENT DWGS DATA SAMPLESMETHODS MANUAL STRATION NOTES) Enclosed Switches 26 2816 X X X X and Circuit Breakers Fuses X X Overload Relays NOTES: F. Design Professional will review shop drawings solely to assist contractors in correctly interpreting the plans and specifications. G. Contract requirements cannot be changed by shop drawings which differ from contract drawings and specifications. ELECTRICAL GENERAL PROVISIONS 26 0010-4 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 1.12 OPERATION AND MAINTENANCE MANUALS A. Operation and maintenance manuals shall be submitted to the Design Professional in duplicate upon completion of the job. Manuals shall be bound in a three ring hard-backed binder. Front cover and spine of each binder shall have the following lettering done: OPERATION AND MAINTENANCE MANUAL FOR ELECTRICAL SYSTEMS (PROJECT NAME) (LOCATION) (DATE) SUBMITTED BY (NAME AND ADDRESS OF CONTRACTOR) B. Provide a master index at the beginning of manual showing items included. Use plastic tab indexes for sections of manual. Each section shall contain the following information for equipment furnished under this contract: 1. Equipment and system warranties and guarantees. 2. Installation instructions. 3. Operating instructions. 4. Maintenance instructions. 5. Spare parts identification and ordering list. 6. Local service organization, address, contact and phone number. 7. Shop drawings with reviewed stamp of Design Professional and Contractor shall be included, if applicable, along with the items listed above. C. Items to be included shall be those listed in shop drawing section. 1.13 TESTS AND DEMONSTRATIONS A. All systems shall be tested by Contractor and placed in proper working order prior to demonstrating systems to Owner. B. Contractor shall test the electrical grounding system resistance in accordance with Specification Section 26 0526 – Grounding and Bonding for Electrical Systems and submit a report to Design Professional stating the results. ELECTRICAL GENERAL PROVISIONS 26 0010-5 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 C. Prior to acceptance of the electrical installation, the Contractor shall demonstrate to the Owner, or his designated representatives, all essential features and functions of all systems installed, and shall instruct the Owner in the proper operation and maintenance of such systems. Owner instruction shall be provided for the following systems: Sections Description Hrs. on SiteHrs. off SitePresented By Others Present Remarks 26 28 16 Electrical Dist. System 1 Contractor 1,2 REMARKS: 1.Perform complete system test at time of instruction. 2.Owner could have up to 5 in attendance. D. Contractor shall submit to the Design Professional a certificate signed by the Owner stating the date, time, and persons instructed and that the instruction has been completed to the Owner's satisfaction. An example of a certificate form is as follows: ELECTRICAL GENERAL PROVISIONS 26 0010-6 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 CERTIFICATE OF SYSTEM DEMONSTRATION This document is to certify that the contractor has demonstrated the hereafter listed systems to the Owner's representatives in accordance with the Contract documents and that the instruction has been completed to the Owner's satisfaction. A. Project: B. System(s): C. Contractor's representatives giving instruction and demonstration: Contractor: _____________________________ NAMES DATE HOURS D. Owner's representatives receiving instruction: Owner: ________________________________ NAMES DATE HOURS E. Acknowledgement of demonstration: Contractor's Representative: ___________________________ signature ___________________________ date Owner's Representative: ___________________________ signature ___________________________ date ELECTRICAL GENERAL PROVISIONS 26 0010-7 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 1.14 SUBSTITUTIONS A. Refer to Divisions 00 and 01. B. Where substitutions are approved, Contractor assumes all responsibility for physical dimensions and all other resulting changes. This responsibility extends to cover all extra work necessitated by other trades as a result of the substitution. 1.15 ACCEPTABLE MANUFACTURERS A. In most cases, equipment specifications are based on a specific manufacturer's type, style, dimensional data, catalog number, etc. Listed with the base specification, either in the manual or on the plan schedules are acceptable manufacturers approved to bid products of equal quality. These manufacturers are encouraged to submit to Design Professional at least 8 days prior to the bid due date drawings and catalog numbers of products to be bid as equals. B. Manufacturers, who do not submit prior to bidding, run the risk of having the product rejected at time of shop drawing submittal. Extra costs associated with replacing the rejected product shall be the responsibility of the Contractor and/or the manufacturer. C. If Contractor chooses to use a manufacturer listed as an equal, it shall be his responsibility to assure that the manufacturer has complied with the requirements in 'A' above. Contractor shall assume all responsibility for physical dimensions, operating characteristics, and all other resulting changes. This responsibility extends to cover all extra work necessitated by other trades as a result of using the alternate manufacturer. D. Where a model or catalog number is provided, it may not be inclusive of all product requirements. Refer to additional requirements provided on the plans or in the specifications as required. Similarly, there may be additional requirements included in the model or catalog number that are not specifically stated. These requirements shall also be met. 1.16 GUARANTEE A. The entire electrical system including all sub-systems shall be guaranteed against defect in materials and installation for a minimum of one year. Any malfunctions which occur within the guarantee period shall be promptly corrected without cost to the Owner. This guarantee shall not limit or void any manufacturer's express or implied warranties. 1.17 CHANGES IN THE WORK A. Refer to Divisions 00 and 01. B. The Owner, without invalidating the Contract, may order changes in the Work within the general scope of the Contract consisting of additions, deletions or other revisions, with the Contract Sum and the Contract Time being adjusted accordingly. All such changes in the Work shall be authorized by Contract Change Order and shall be performed under the applicable conditions of the Contract Documents. C. The cost or credit to the Owner resulting from a change in the Work shall be determined by mutual acceptance of a lump sum properly itemized and supported by sufficient substantial data to permit evaluation. A Change Order in excess of $300.00 shall be submitted with each item listed individually with a material cost and labor unit extension. Overhead and profit, as mutually agreed upon between Owner and Contractor shall be added to material and labor cost figures. D. It shall be the responsibility of the contractor before proceeding with any change to satisfy himself that the change has been properly authorized in behalf of the Owner. ELECTRICAL GENERAL PROVISIONS 26 0010-8 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 1.18 COMPLETION A. Systems, at time of completion, shall be complete, efficiently operating, non-hazardous and ready for normal use by the Owner. B. When all the electrical work is complete Contractor shall thoroughly clean all material and equipment installed as a part of this contract and leave all equipment and material in new condition. C. Contractor shall clean up and remove from the site all debris, excess material and equipment left during the progress of this contract at job completion. 1.19 TEMPORARY UTILITIES A. Refer to Specification Division 1 for specific requirements concerning temporary utilities. END OF SECTION 26 0010 ELECTRICAL GENERAL PROVISIONS 26 0010-9 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 SECTION 26 0500 - COMMON WORK RESULTS FOR ELECTRICAL PART 1 - GENERAL 1.01 RELATED DOCUMENTS A. The requirements of Division 00 - Procurement and Contracting Requirements, Division 01 - General Requirements and Section 26 0010 - Electrical General Provisions are applicable to work required of this section. 1.02 DESCRIPTION OF WORK A. This section includes the following: 1. Demolition. PART 2 - PRODUCTS 2.01 MATERIALS A. All materials removed shall be the property of the removing contractor and shall be removed from the site unless otherwise specified. PART 3 - EXECUTION 3.01 GENERAL A. Demolition shall be accomplished by the proper tools and equipment for the work to be removed. Personnel shall be experienced and qualified in the type of work to be performed. 3.02 EXAMINATION A. Verify field measurements and circuiting arrangements are as shown on Drawings. B. Verify that abandoned wiring and equipment serve only abandoned facilities. C. Demolition Drawings are based on casual field observation. Report discrepancies to Owner before disturbing existing installation. 3.03 PREPARATION A. Disconnect electrical systems in walls, floors, and ceilings scheduled for removal. B. Provide temporary wiring and connections to maintain existing systems in service during construction. When work must be performed on energized equipment or circuits, use personnel experienced in such operations. C. Existing Electrical Services: Maintain existing system in service. Disable system only to make switchovers and connections. Obtain permission from Owner at least 24 hours before partially or completely disabling system. Minimize outage duration. Make temporary connections to maintain service in areas adjacent to work area. D. Existing Fire Alarm System: Maintain existing system in service. Disable system only to make switchovers and connections. Notify Owner at least 24 hours before partially or completely disabling system. Minimize outage duration. Make temporary connections to maintain service in areas adjacent to work area. COMMON WORK RESULTS FOR ELECTRICAL 26 0500-1 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 3.04 DEMOLITION AND EXTENSION OF EXISTING ELECTRICAL WORK A. Demolish and extend existing electrical work under provisions of this Section. B. Remove, relocate, and extend existing installations to accommodate new construction. Extend existing installations using materials and methods as specified. C. Remove abandoned wiring to source of supply. D. Remove exposed abandoned conduit, including abandoned conduit above accessible ceiling finishes. Cut conduit flush with walls and floors, and patch surfaces. E. Disconnect and remove electrical devices and equipment serving utilization equipment that has been removed. F. Repair adjacent construction and finishes damaged during demolition and extension work. G. Maintain access to existing electrical installations which remain active. Modify installation or provide access panel as appropriate. H. Clean and repair existing materials and equipment which remain or are to be reused. 3.05 WORK BY OTHERS A. Unless specifically noted under other contracts, Electrical Contractor shall assume all required work shall be performed by him. In general, the following will be performed by others: 1. Mechanical Contractor will disconnect all mechanical services and remove pipe back to behind finish surfaces, close and cap ends of pipe. 3.06 OWNER'S RIGHT OF SALVAGE A. Owner may designate and have salvage rights to any material herein demolished by the Contractor. END OF SECTION 26 0500 COMMON WORK RESULTS FOR ELECTRICAL 26 0500-2 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 SECTION 26 0519 - LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES PART 1 - GENERAL 1.01 RELATED WORK A. The requirements of Division 00 - Procurement and Contracting Requirements, Division 01 - General Requirements and Section 26 0010 - Electrical General Provisions are applicable to work required of this section. 1.02 DESCRIPTION OF WORK A. Contractor shall furnish all material, tools, labor and supervision necessary to install all wiring systems. B. This section describes the basic materials and methods of installation for general wiring systems of 600 volts and less. Wiring for a higher voltage rating, if required, shall be as specified in other sections or called for on the drawings. 1.03 QUALITY ASSURANCE A. NEC Compliance: Comply with NEC as applicable to construction and installation of electrical wire, cable and connectors. B. UL Compliance: Comply with UL standards pertaining to wire, cable and connectors. C. UL Labels: Provide electrical wires, cables and connectors which have been UL-listed and labeled. D. NEMA/ICEA Compliance: Comply with applicable portions of NEMA/Insulated Cable Engineers Association standards pertaining to materials, construction and testing of wire and cable. E. ANSI/ASTM: Comply with applicable portions of ANSI/ASTM standards pertaining to construction of wire and cable. F. The materials used for wiring systems shall be the products of a manufacturer regularly engaged in the manufacturing of the specified material. PART 2 - PRODUCTS 2.01 WIRE AND CABLE A. All wire and cable for power, lighting, control and signal circuits shall have copper conductors of not less than 98% conductivity and shall be insulated to 600 V. Conductor sizes #10 AWG and smaller shall be solid, conductor sizes #8 AWG and larger shall be stranded. B. Minimum size conductors shall be #12 AWG for power and lighting. C. Type of wire and cable for various applications shall be as follows: 1. Type THWN, or XHHW (75 deg. C) - use for branch circuits, panel and equipment feeders in wet and dry locations. LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES 26 0519-1 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 2. Type THHN, or XHHW (90 deg. C) - use for branch circuits, panel and equipment feeders in dry locations only. Use where lighting branch circuit conductors are routed through fluorescent fixture channels. 3. Type MTW, wet and dry locations - use for low voltage signal and control circuits operating at 25 volts or less. 4. Type UF - use where permitted by other sections or by the drawings for underground burial branch circuits. D. For all vibration type installations (i.e. motors, etc), provide stranded type conductors. 2.02 CONDUCTOR COLOR CODING A. Wiring systems shall be color coded. Conductor insulation shall be colored in sizes up through #8 AWG, conductors #6 AWG and larger shall have black insulation and shall be phase color coded with one-half inch band of colored tape at all junctions and terminations. Colors shall be assigned to each conductor as described below and carried throughout all main and branch circuit distribution. When necessary to use tape, use colored tape on black wire. Do not use colored tape on colored wire. 277/480V. Phase 'A' Conductor Brown Phase 'B' Conductor Orange Phase 'C' Conductor Yellow Neutral Conductor Grey Grounding Conductor Green 2.03 CONNECTORS A. In-line splices and taps for conductor sizes #8 AWG and smaller, use 3M Co. "Scotchlock" vinyl insulated spring connectors, or equal Ideal "wingnut" or Thomas & Betts. Wago wire nuts are also acceptable. B. Connectors for conductors No. 6 and larger shall be of compression or split-bolt types, National Electric, Thomas & Betts, Blackburn or Burndy mechanical connectors. Fill connector voids with electrical insulation putty, follow with 3-M Scotch tape #33, minimum 2 layers. PART 3 - EXECUTION 3.01 PREPARATION A. Wire shall not be installed in the conduit system until the building is enclosed and masonry work is completed. B. Conduit shall be swabbed free of moisture and debris prior to pulling in wiring. Pull mouse through conduits prior to pulling conductors. LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES 26 0519-2 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 3.02 INSTALLATION A. All cable for major feeders shall be continuous from origin to termination, unless otherwise indicated. B. Splices in branch circuit wires shall be made only in accessible junction boxes. C. All power feeder cable shall be pulled with the use of approved pulling compound or powder. Compound must not deteriorate conductor or insulation. D. Use pulling means, including fish tape, cable or rope which cannot damage raceway. E. Install exposed cable, parallel and perpendicular to surfaces or exposed structural members and follow surface contours, where possible. F. Keep conductor splices to a minimum. G. The continuity of circuit conductors shall not be dependant on service connections such as lamp holders, receptacles, etc., where the removal of such devices would interrupt the continuity. H. Provide separate green ground conductor throughout entire electrical system. I. All branch circuits shall have dedicated neutrals. 3.03 FIELD QUALITY CONTROL A. Prior to energizing system, test cable and wire for continuity of circuitry, and also for short circuits. Correct malfunctions when detected. B. Subsequent to wire and cable hook-ups, energize circuitry and demonstrate functioning in accordance with requirements. END OF SECTION 26 0519 LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES 26 0519-3 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 SECTION 26 0526 - GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS PART 1 - GENERAL 1.01 RELATED WORK A. The requirements of Division 00 - Procurement and Contracting Requirements, Division 01 - General Requirements and Section 26 0010 - Electrical General Provisions are applicable to work required of this section. 1.02 DESCRIPTION OF WORK A. Extent of grounding work is indicated by drawings and shall comply with NEC. B. Applications of grounding work in this section include the following: 1. Service equipment. 2. Enclosures. 3. Equipment. C. Requirements of this section apply to electrical grounding work specified elsewhere in these specifications. 1.03 QUALITY ASSURANCE A. NEC Compliance: Comply with NEC requirements as applicable to materials and installation of electrical grounding systems, associated equipment and wiring. Provide grounding products which are UL-listed and labeled. B. UL Compliance: Comply with applicable requirements of UL Standards Nos. 467 and 869 pertaining to electrical grounding and bonding. C. IEEE Compliance: Comply with applicable requirements of IEEE Standard 142 and 241 pertaining to electrical grounding. PART 2 - PRODUCTS 2.01 GROUNDING SYSTEMS A. Materials and Components 1. General: Except as otherwise indicated, provide electrical grounding systems indicated; with assembly of materials, including, but not limited to, cables/wires, connectors, terminals (solderless lugs), grounding rods/electrodes and plate electrodes, bonding jumper braid, surge arresters, and additional accessories needed for complete installation. Where more than one type unit meets indicated requirements, selection is Installer's option. Where materials or components are not indicated, provide products complying with NEC, UL, IEEE, and established industry standards for applications indicated. 2. Raceways: Provide raceways, and electrical boxes and fittings complying with Division 26, Section 26 0533 – Raceway and Boxes for Electrical Systems. 3. Conductors: Unless otherwise indicated, provide electrical grounding conductors for grounding connections matching power supply wiring materials and sized according to NEC. GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS 26 0526-1 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 PART 3 - EXECUTION 3.01 INSTALLATION OF ELECTRICAL GROUNDING A. General: Install electrical grounding systems where shown, in accordance with applicable portions of NEC, with NECA's "Standard of Installation", and in accordance with recognized industry practices to ensure that products comply with requirements and serve intended functions. B. Coordinate with other electrical work as necessary to interface installation of electrical grounding system with other work. C. Install clamp-on connectors only on thoroughly cleaned metal contact surfaces, to ensure electrical conductivity and circuit integrity. D. Provide separate green ground conductor throughout entire electrical system sized as required by the NEC. END OF SECTION 26 0526 GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS 26 0526-2 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 SECTION 26 0529 - HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS PART 1 - GENERAL 1.01 RELATED WORK A. The requirements of Division 00 - Procurement and Contracting Requirements, Division 01 - General Requirements and Section 26 0010 - Electrical General Provisions are applicable to work required of this section. 1.02 DESCRIPTION OF WORK A. Provide materials, labor and supervision as necessary to provide hangers and supports for conduit, fixtures and equipment. 1.03 QUALITY ASSURANCE A. NEC Compliance: Comply with NEC as applicable to construction and installation of electrical supporting devices. B. ANSI/NEMA Compliance: Comply with applicable requirements of ANSI/NEMA Std. Pub. No. FB 1, "Fittings and Supports for Conduit and Cable Assemblies". C. NECA Compliance: Comply with National Electrical Contractors Association's "Standard of Installation" pertaining to anchors, fasteners, hangers, supports, and equipment mounting. D. UL Compliance: Provide electrical components which are UL-listed and labeled. PART 2 - PRODUCTS 2.01 MANUFACTURED SUPPORTING DEVICES A. General: Provide supporting devices; complying with manufacturer's standard materials, design and construction in accordance with published product information, and as required for a complete installation; and as herein specified. Where more than one type of device meets indicated requirements, selection is Installer's option. B. Conduit Cable Supports: Provide cable supports with insulating wedging plug for non-armored type electrical cables in risers; construct for rigid metal conduit; type wire as indicated; construct body of malleable iron casting with hot dip galvanized finish. C. U-Channel Strut Systems: Provide U-channel strut system for supporting electrical equipment, 16-guage hot dip galvanized steel, of types and sizes indicated; construct with 9/16" dia. holes, 8" o.c. on top surface, with standard green finish, and with the following fittings which mate and match with U-channel: 1. Fixture hangers. 2. Channel hangers. 3. End caps. 4. Beam clamps. 5. Wiring stud. 6. Thinwall conduit clamps. 7. Rigid conduit clamps. 8. Conduit hangers. 9. U-bolts. HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS 26 0529-1 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 D. Manufacturer: Subject to compliance with requirements, provide channel systems of one of the following: 1. B-Line Systems, Inc. 2. Thomas & Betts, Superstrut 3. Unistrut Div.; Tyco International 4. Globestrut PART 3 - EXECUTION 3.01 INSTALLATION OF SUPPORTING DEVICES A. Install hangers, anchors, sleeves and seals as indicated, in accordance with manufacturer's written instructions and with recognized industry practices to insure supporting devices comply with requirements. B. Coordinate with other electrical work, including raceway and wiring work, as necessary to interface installation of supporting devices with other work. C. Conduit hangers and support devices shall be approved type for the method of supporting required. All hangers and supports shall have galvanized finish or other approved corrosion resistance finish. In general, hangers and supports shall be as follows: 1. Where single or multiple run of conduit is routed on surface of structure; use conduit clamps mounted on U-channel strut so as to maintain not less than 1" clearance between conduit and structure. 2. Where single run of conduit is suspended from overhead; use split ring conduit clamp suspended by 3/8" steel drop rod. 3. Where multiple parallel runs of conduit are suspended from overhead; use split ring conduit clamps uniformly spaced and supported on trapeze hangers fabricated of U-channel strut, suspended by not less than two steel drop rods. 4. Where circuit voltage is above 600 volts, conduit clamps shall be provided with insulating bushings of dielectric strength as required. 5. Where conduit is buried in concrete floor topping; anchor conduit to structural floor with one hole jiffy clamps. 6. Maximum hanger and support spacing shall be in accordance with NEC. D. Hangers and supports shall be anchored to structure as follows: 1. Hangers and supports anchored to poured concrete, use malleable iron or steel concrete inserts attached to concrete forms. 2. Hangers or supports anchored to precast concrete, use self-drilling expansion shields. Expansion shields may be used where concrete inserts have been missed or additional support is required in poured concrete. 3. Hanger or supports anchored to structural steel, use beam clamps and/or steel channels as required by structural system. 4. Hangers or supports anchored to metal deck, use spring clips or approved welding pins. Maximum permissible load on each hanger shall not exceed 50 pounds. HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS 26 0529-2 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 5. Use toggle bolts or hollow wall fasteners in hollow masonry, plaster, or gypsum board partitions and walls. 6. Use sheet metal screws in sheet metal studs and wood screws in wood construction. E. The following is not permitted: 1. Attaching supports and hangers to piping, ductwork, mechanical equipment, or conduit. 2. Use of powder-actuated anchors. 3. Drilling of structural steel members. F. Where disconnect switches and panels cannot be mounted on wall, provide support racks fabricated of structural steel or U-channel strut. END OF SECTION 26 0529 HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS 26 0529-3 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 SECTION 26 0533 - RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS PART 1 - GENERAL 1.01 RELATED WORK A. The requirements of Division 00 - Procurement and Contracting Requirements, Division 01 - General Requirements and Section 26 0010 - Electrical General Provisions are applicable to work required of this section. 1.02 DESCRIPTION OF WORK A. Contractor shall furnish all materials, tools labor and supervision necessary to fabricate and install complete conduit systems. B. Conduit systems shall be provided for all wiring, except where the drawings or other sections of the specifications indicate that certain wiring may be installed in cable trays, surface raceway, underfloor raceway, wireways and/or auxiliary gutters. C. Types of raceways in this section include the following: 1. Electrical metallic tubing. 2. Flexible metal conduit. 3. Intermediate metal conduit. 4. Liquid-tight flexible metal conduit. 5. Rigid metal conduit. D. Contractor shall furnish all material, tools, labor and supervision necessary to install electrical boxes and fittings as required by drawings and specifications. E. Types of electrical boxes and fittings in this section include the following: 1. Junction boxes. 2. Pull boxes. 1.03 QUALITY ASSURANCE A. NEMA Compliance: Comply with applicable requirements of NEMA standards pertaining to raceways. B. UL Compliance and Labeling: Comply with provisions of UL safety standards pertaining to electrical raceway systems; and provide products and components which have been UL-listed and labeled. C. NEC Compliance: Comply with requirements as applicable to construction and installation of raceway systems. D. The materials used in the fabrication of the raceway system shall be products of a manufacturer regularly engaged in the manufacturing of the specified material. E. NEC compliance: Comply with NEC as applicable to construction and installation of electrical wiring boxes and fittings. F. UL Compliance: Provide electrical boxes and fittings which have been UL-listed and labeled. RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS 26 0533-1 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 G. ANSI/NEMA Standards Compliance: Comply with ANSI C 134.1 (NEMA Standards Pub No. OS 1) as applicable to sheet-steel outlet boxes, covers and box supports. 1.04 SUBMITTALS A. Product Data: Submit manufacturer's data including specifications, installation instructions and general recommendations, for each type of raceway required. B. Shop Drawings: Submit dimensioned drawings of raceway systems showing layout of raceways and fittings, spatial relationships to associated equipment, and adjoining raceways, if any. Show connections to electrical power panels and feeders. C. Product Data: Submit manufacturer's data including specifications, installation instructions and general recommendations for each type of floor box required. Include data substantiating that units comply with requirements. PART 2 - PRODUCTS 2.01 CONDUIT A. General: Provide metal conduit, tubing and fittings of types, grades, sizes and weights (wall thicknesses) for each service indicated. Where types and grades are not indicated, provide proper selection determined by Installer to fulfill wiring requirements, and comply with applicable portions of NEC for raceways. B. Rigid Conduit: Full weight, threaded, rigid steel conduit, galvanized inside and out by hot dip or electro galvanized process. Additional protection by electrostatically applied baked coating. Thread protective caps and couplings. Use for all feeders larger than 2 1/2" in size. C. Intermediate Metal Conduit (IMC): May be used as approved by code where rigid conduit is specified, except shall not be used for conduit buried in earth fill. D. Electrical Metallic Tubing: Thin wall, electrically welded cold rolled steel conduit, galvanized inside and out by electro galvanized process. Baked clear elastic enamel coating in and out. Use for installations in stud walls, masonry walls, above suspended ceilings and where exposed. Size limited to 2 1/2" and smaller. E. Flexible Metal Conduit: Formed of one continuous length of spirally wound electro galvanized steel strip. Use for final connections to all motor operated equipment such as unit heaters, fans, air handling units, pumps, generators, generator enclosures and connections to dry type transformer, connections from junction boxes to lighting fixtures in accessible ceiling, and for wiring within casework and millwork. F. Liquidtight Flexible Metal Conduit: Formed of one continuous length of spirally wound steel strip, with water and oil tight neoprene jacket. Use for final connection to equipment listed in paragraph "D" above when located in wet areas. G. MC cable will not be allowed. 2.02 CONDUIT FITTINGS A. Rigid Conduit Fittings: Threaded, galvanized malleable iron or heavy steel, water and concrete tight. Grounding type nylon insulated bushings for connectors at cabinets, boxes and gutters. RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS 26 0533-2 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 B. Metallic Tubing Fittings: Compression type galvanized malleable iron or steel, water and concrete tight where exposed to wet locations or imbedded in concrete. Steel set screw type acceptable in all dry location applications. C. Flexible Metal Conduit Fittings: Squeeze or screw type galvanized malleable iron or steel with nylon insulated throats. D. Liquidtight Flexible Conduit Fittings: Galvanized malleable iron or steel, with watertight gaskets, "O" ring and retainer, and nylon insulated throats. E. Condulet Fittings: Exposed conduit fittings shall be condulet type for all sharp turns, tees, etc. F. Observe National Electrical Code requirements for insulated bushings on 1-1/4 inch and larger conduits. Double locknuts and fibre bushings with threads fully engaged are required. 1-1/4 inch and larger EMT connectors, if used, must also accommodate insulated bushings with threads fully engaged. T & B "Insuline" or Appleton insulated throat connectors are acceptable in lieu of separate bushings. G. Provide Sealtite for the last 3’ of feeder/circuit for all vibration type equipment (i.e. motors, transformers, etc). 2.03 WIREWAYS A. General: Provide electrical raceways of types, grades, sizes and weights (wall thicknesses), number of channels, for each type service indicated. Provide complete assembly of raceway including, but not necessarily limited to, couplings, offsets, elbows, expansion joints, adapters, hold down straps, end caps, and other components and accessories as needed for complete system. Where types and grades are not indicated, provide proper selection as determined by Installer to fulfill wiring requirements, and comply with applicable provisions of NEC for electrical raceways. 2.04 PULL AND JUNCTION BOXES A. Construction, sizes and installation of pull and junction boxes shall comply with NEC, Article 370. B. Pull and junction boxes not specifically described in NEC, Article 370, shall be fabricated of heavy gauge galvanized steel with screw or hinged covers, and equipped with corrosion resistant screws and hardware. C. Pull and junction boxes for installation in poured concrete floors shall be flush type, cast iron, with watertight gasketed covers. Boxes for installation in floors with tile or carpet floor covering shall have recessed covers to accommodate the floor covering. D. Pull and junction boxes for outdoor installation shall be raintight. PART 3 - EXECUTION 3.01 INSTALLATION OF RACEWAY A. In general, all horizontal runs of branch circuit conduit shall be installed in ceiling plenum. Conduit for convenience outlets, wall mounted fixtures and other wall outlets shall be routed overhead and dropped through wall to the outlet. Branch circuit conduit shall not be installed in concrete floor slabs except where conditions will not permit the conduit to be installed overhead. RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS 26 0533-3 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 B. Generally, all conduit shall be concealed, except in crawl spaces, tunnels, shafts, mechanical equipment rooms, and at connection to surface panels and free standing equipment, and as otherwise noted. C. Exposed conduit and conduit concealed in ceiling space shall be routed in lines parallel to building construction. D. All conduit runs above suspended acoustical ceilings shall be routed so as not to interfere with tile panel removals with 4'0" to 6'0" flexible conduit drops from an independent junction box, accessible from below the ceiling, to ceiling mounted equipment. E. Minimum size conduit shall be 3/4" trade size except all home runs to panels shall be minimum 1". Where specified size is not called for on drawings or in the specifications, conduit shall be sized per NEC. F. Install the conduit system mechanically and electrically continuous from outlet to outlet and to all cabinets, junction or pull boxes. Conduit shall enter and be secured to all cabinets and boxes in such a manner that all parts of the system will have electrical continuity. G. Installation of PVC conduit shall comply with the NEC with regard to grounding. H. PVC conduit shall not be installed above grade unless noted otherwise. I. Support conduit raceway systems in accordance with requirements as set forth in the National Electric Code. 3.02 INSTALLATION OF BOXES AND FITTINGS A. Install electrical boxes and fittings where indicated, complying with manufacturer's written instructions, applicable requirements of NEC and NECA's "Standard of Installation", and in compliance with recognized industry practices to ensure that products fulfill requirements. B. Coordinate installation of electrical boxes and fittings with wire/cable and raceway installation work. 3.03 PULL AND JUNCTION BOX INSTALLATION A. Install pull boxes, junction boxes and auxiliary wiring gutters where indicated on drawings and where required to facilitate installation of the wiring. B. For concealed conduit, install boxes flush with ceiling or wall, with covers accessible and easily removable. Where flush boxes are installed in finish ceilings or walls, provide cover which shall exceed the box face dimensions by a sufficient amount to allow no gap between box and finished material. C. Boxes shall not be located in finished, occupied rooms, without prior approval of Design Professional. END OF SECTION 26 0533 RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS 26 0533-4 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 SECTION 26 2815 - MOTOR AND SERVICE DISCONNECTS PART 1 - GENERAL 1.01 RELATED WORK A. The requirements of Division 00 - Procurement and Contracting Requirements, Division 01 - General Requirements and Section 26 0010 - Electrical General Provisions are applicable to work required of this section. 1.02 DESCRIPTION OF WORK A. In general, disconnect switches are indicated on the drawings, and it shall be the Electrical Contractor's responsibility to furnish and install all disconnect switches for equipment and motors furnished by him, and for equipment and motors furnished by others. 1.03 QUALITY ASSURANCE A. NEC Compliance: Comply with NEC as applicable to construction and installation of electrical motor and circuit disconnect switches. B. UL Compliance and Labeling: Provide motor and circuit disconnect switches which have been UL-listed and labeled. C. NEMA Compliance: Comply with applicable requirements of NEMA Stds. Pub. No. KS 1. 1.04 SUBMITTALS A. Product Data: Submit manufacturer's data including specifications, installation instructions and general recommendations, for each type of motor and circuit disconnect switch required. PART 2 - PRODUCTS 2.01 ACCEPTABLE MANUFACTURERS A. Subject to compliance with requirements, provide products of one of the following manufacturers: 1. General Electric 2. Square D Co. 3. Cutler Hammer 2.02 DISCONNECTS A. All disconnects shall be heavy duty type unless noted otherwise. B. Disconnects for fractional horsepower motors larger than 1/2 horsepower, for integral horsepower motors, and for equipment of similar capacity shall break all ungrounded conductors and shall be quick-make, quick-break with interlocking covers. C. Disconnects installed indoors shall have NEMA 1 enclosures, disconnects installed outdoors or in wet locations shall have raintight NEMA 3R enclosures. D. All disconnects shall be of the fuse type, except where drawings indicate non-fuse type (N.F.). MOTOR AND SERVICE DISCONNECTS 26 2815-1 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 PART 3 - EXECUTION 3.01 INSTALLATION OF MOTOR AND CIRCUIT DISCONNECT SWITCHES A. Install motor and circuit disconnect switches where indicated, complying with manufacturer's written instructions, applicable requirements of NEC, NEMA, and NECA's "Standard of Installation", and in accordance with recognized industry practices to ensure that products fulfill requirements. B. Install disconnect switches used with motor-driven appliances, and motors and controllers within sight of controller position unless otherwise indicated. END OF SECTION 26 2815 MOTOR AND SERVICE DISCONNECTS 26 2815-2 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 SECTION 26 2816 - ENCLOSED SWITCHES AND CIRCUIT BREAKERS PART 1 - GENERAL 1.01 RELATED WORK A. The requirements of Division 00 - Procurement and Contracting Requirements, Division 01 - General Requirements and Section 26 0010 - Electrical General Provisions are applicable to work required of this section. 1.02 DESCRIPTION OF WORK A. Provide circuit breakers, fuses and motor overload relays and install in disconnect switches and motor starters as required for proper overcurrent protection for service feeders, branch feeders, branch circuits, motors, transformers and other equipment requiring protection. B. Overcurrent protection shall be provided for each conductor and all equipment to open the circuit if the current reaches a value that will cause an excessive or dangerous temperature in conductors or conductor insulation. Circuit breakers shall have frame and trip ratings as scheduled on drawings. C. Types of overcurrent protective devices in this section include the following: 1. Circuit breakers 2. Fuses 1.03 QUALITY ASSURANCE A. NEC Compliance: Comply with NEC requirements as applicable to construction and installation of overcurrent protective devices. B. UL Compliance: Comply with applicable requirements of UL 489, "Molded-Case Circuit Breakers and Circuit Breaker Enclosures", and UL 198D, "High-Interrupting- Capacity Class K Fuses". Provide overcurrent protective devices which are UL listed and labeled. C. NEMA Compliance: Comply with applicable requirements of NEMA Std. Pub. Nos. AB 1, AB 2, and SG 3 pertaining to molded-case and low voltage power-type circuit breakers. D. ANSI Compliance: Comply with applicable requirements of ANSI C97.1 pertaining to low voltage cartridge fuses. 1.04 SUBMITTALS A. Product Data: Submit manufacturer's data on overcurrent protective devices, including: amperes, voltages and current ratings, interrupting ratings, current limitations, internal inductive and non-inductive loads, time-current trip characteristic curves, and mounting requirements. PART 2 - PRODUCTS 2.01 ACCEPTABLE MANUFACTURERS A. Manufacturer: Subject to compliance with requirements, provide products of one of the following: 1. Circuit Breakers a. General Electric Co. ENCLOSED SWITCHES AND CIRCUIT BREAKERS 26 2816-1 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 2. Fuses a. Bussmann Div.; McGraw-Edison Co. b. CEFCO c. Gould Shawmut d. Littelfuse B. All similar products shall be of the same manufacturer. 2.02 CIRCUIT BREAKERS A. General: Except as otherwise indicated, provide circuit breakers and ancillary components, of types, sizes, ratings and electrical characteristics indicated, which comply with manufacturer's standard design, materials, components, and construction in accordance with published product information, and as required for a complete installation. B. Circuit Breakers - Distribution Panelboards: 1. Molded case circuit breakers shall be rated 15 through 2500 amperes. Breakers covered under this specification may be applied in switchboards, panelboards, motor control centers, combination motor starter, busway plug-in units or individual enclosures. 2. Molded case circuit breakers shall have overcenter, trip-free, toggle-type operating mechanisms with quick-make, quick-break action and positive handle indication. Two and three-pole breakers shall be common trip. Each circuit breaker shall have a permanent trip unit containing individual thermal and magnetic trip elements in each pole. Units shall be constructed to accommodate the supply connection at either end. Operating handles shall assume a center position when tripped. All breakers shall be calibrated for operation in an ambient temperature of 40 deg. C. A button shall be provided on the cover for mechanically tripping the circuit breaker. 3. Breakers shall have removable lugs. Lugs shall be UL listed for copper/aluminum conductors. Breakers shall be UL listed for installation of mechanical screw type lugs. 2.03 FUSES A. General: Except as otherwise indicated, provide fuses of types, sizes, ratings, and average time/current and peak let-through current characteristics indicated, which comply with manufacturer's standard design, materials, and construction in accordance with published product information, and with industry standards and configurations. B. Main Service Feeders and Branch Circuits: For switch rating over 600 amperes: Hi-Cap, Type KRP-C with interrupting rating of 200,000 amperes RMS. For switch rating 600 amperes or less: Low peak current limiting fuses, Type LPN(S)-R, with interrupting rating of 200,000 amperes RMS. C. Motors Above One (1) Horsepower: For fuse rating 600 amperes or less, dual element time delay, Type FRN(S)-R, with interrupting rating of 200,000 amperes RMS. Size fuses per Article 430 of the National Electric Code. D. Motors One (1) Horsepower or Less: Single phase 150 volts or less, Fustat fuses for motor running protection sizes. Single phase or three phase over 150 volts, Fustron fuses for motor running protection, with interrupting rating of 100,000 RMS. Size fuses per Article 430 of the National Electric Code. ENCLOSED SWITCHES AND CIRCUIT BREAKERS 26 2816-2 CITY OF IOWA CITY DE #14006 CITY HALL POLICE AND FIRE DEPARTMENT HVAC REPLACEMENT PROJECT 2014 E. Fuses for all feeders, branch circuits, motors and other equipment shall be selected in types and ratings in accordance with NEC to provide a coordinated system of overcurrent protection, thus in case of a fault or harmful overload, only the fuses nearest the fault or overload will open. F. Provide one spare set of three (3) of each size and type of fuse used on project. PART 3 - EXECUTION 3.01 INSTALLATION OF OVERCURRENT PROTECTIVE DEVICES A. Install overcurrent protective devices as indicated, in accordance with manufacturer's written instructions and with recognized industry practices to ensure that protective devices comply with requirements. Comply with NEC and NEMA standards for installation of overcurrent protective devices. B. Coordinate with other work, including electrical wiring work, as necessary to interface installation of overcurrent protective devices with other work. END OF SECTION 26 2816 ENCLOSED SWITCHES AND CIRCUIT BREAKERS 26 2816-3