VA 23 05 11-2010 COMMON WORK RESULTS FOR HVAC.pdf

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1、11-10 23 05 11 - 1 SECTION 23 05 11 COMMON WORK RESULTS FOR HVAC SPEC WRITER NOTES: 1. Delete between /-/ if not applicable to project. Also delete any other item or paragraph not applicable in the section and renumber the paragraphs. 2. References to pressure in this section are gage pressure unles

2、s otherwise noted. 3. The spec writer shall review the Physical Security Design Manual for VA Facilities to determine and include in this section any Mission Critical or Life Safety requirements called out. PART 1 - GENERAL 1.1 DESCRIPTION A. The requirements of this Section apply to all sections of

3、 Division 23. B. Definitions: 1. Exposed: Piping, ductwork, and equipment exposed to view in finished rooms. 2. Option or optional: Contractors choice of an alternate material or method. 3. RE: Resident Engineer 4. COTR: Contracting Officers Technical Representative. 1.2 RELATED WORK A. Section 00 7

4、2 00, GENERAL CONDITIONS B. Section 01 00 00, GENERAL REQUIREMENTS C. Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, and SAMPLES /D. Section 02 65 00, UNDERGROUND STORAGE TANK REMOVAL/ /E. Section 02 82 11, TRADITIONAL ASBESTOS ABATEMENT / /F. Section 31 20 00, EARTH MOVING: Excavation and Backfill

5、/ G. Section 03 30 00, CAST-IN-PLACE CONCRETE: Concrete and Grout H. Section 05 31 00, STEEL DECKING, / and Section 05 36 00, COMPOSITE METAL DECKING: Building Components for Attachment of Hangers / I. Section 05 50 00, METAL FABRICATIONS J. Section 07 84 00, FIRESTOPPING K. Section 07 60 00, FLASHI

6、NG AND SHEET METAL: Flashing for Wall and Roof Penetrations L. Section 07 92 00, JOINT SEALANTS M. Section 09 91 00, PAINTING /N. Section 13 05 41, SEISMIC RESTRAINT REQUIREMENTS FOR NON-STRUCTURAL COMPONENTS/ Provided by IHSNot for ResaleNo reproduction or networking permitted without license from

7、IHS-,-,-11-10 23 05 11 - 2 O. Section 23 05 12, GENERAL MOTOR REQUIREMENTS FOR HVAC and STEAM GENERATION P. Section 23 05 41, NOISE AND VIBRATION CONTROL FOR HVAC PIPING and EQUIPMENT Q. Section 23 05 93, TESTING, ADJUSTING, and BALANCING FOR HVAC R. Section 23 07 11, HVAC, PLUMBING, and Boiler Plan

8、t Insulation S. Section 23 09 11, INSTRUMENTATION and CONTROL FOR BOILER PLANT T. Section 23 09 23, DIRECT-DIGITAL CONTROL SYSTEM FOR HVAC U. Section 23 10 00, FACILITY FUEL SYSTEMS V. Section 23 11 23, FACILITY NATURAL-GAS PIPING W. Section 23 21 13, HYDRONIC PIPING X. Section 23 21 23, HYDRONIC PU

9、MPS Y. Section 23 22 13, STEAM and CONDENSATE HEATING PIPING Z. Section 23 22 23, STEAM CONDENSATE PUMPS AA. Section 23 23 00, REFRIGERANT PIPING BB. Section 23 25 00, HVAC WATER TREATMENT CC. Section 23 31 00, HVAC DUCTS and CASINGS DD. Section 23 34 00, HVAC FANS EE. Section 23 36 00, AIR TERMINAL

10、 UNITS FF. Section 23 37 00, AIR OUTLETS and INLETS GG. Section 23 38 13, COMMERCIAL-KITCHEN HOODS HH. Section 23 40 00, HVAC AIR CLEANING DEVICES II. Section 23 51 00, BREECHINGS, CHIMNEYS, and STACKS JJ. Section 23 52 25, LOW-PRESSURE WATER HEATING BOILERS KK. Section 23 52 33, WATER-TUBE BOILERS

11、LL. Section 23 52 39, FIRE-TUBE BOILERS MM. Section 23 64 00, PACKAGED WATER CHILLERS NN. Section 23 65 00, COOLING TOWERS OO. Section 23 72 00, AIR-TO-AIR ENERGY RECOVERY EQUIPMENT PP. Section 23 73 00, INDOOR CENTRAL-STATION AIR-HANDLING UNITS QQ. Section 23 74 13, PACKAGED, OUTDOOR, CENTRAL-STATI

12、ON AIR-HANDLING UNITS RR. Section 23 81 00, DECENTRALIZED UNITARY HVAC EQUIPMENT SS. Section 23 81 23, COMPUTER-ROOM AIR-CONDITIONERS TT. Section 23 81 43, AIR-SOURCE UNITARY HEAT PUMPS UU. Section 23 81 46, WATER-SOURCE UNITARY HEAT PUMPS VV. Section 23 82 00, CONVECTION HEATING and COOLING UNITS W

13、W. Section 23 82 16, AIR COILS XX. Section 23 84 00, HUMIDITY CONTROL EQUIPMENT YY. Section 23 08 00, COMMISSIONING OF HVAC SYSTEMS: Requirements for commissioning, systems readiness checklists, and training ZZ. Section 26 05 11, REQUIREMENTS FOR ELECTRICAL INSTALLATIONS Provided by IHSNot for Resal

14、eNo reproduction or networking permitted without license from IHS-,-,-11-10 23 05 11 - 3 AAA. Section 26 29 11, LOW-VOLTAGE MOTOR STARTERS 1.3 QUALITY ASSURANCE A. Mechanical, electrical and associated systems shall be safe, reliable, efficient, durable, easily and safely operable and maintainable,

15、easily and safely accessible, and in compliance with applicable codes as specified. The systems shall be comprised of high quality institutional-class and industrial-class products of manufacturers that are experienced specialists in the required product lines. All construction firms and personnel s

16、hall be experienced and qualified specialists in industrial and institutional HVAC B. Flow Rate Tolerance for HVAC Equipment: Section 23 05 93, TESTING, ADJUSTING, AND BALANCING FOR HVAC. C. Equipment Vibration Tolerance: 1. Refer to Section 23 05 41, NOISE AND VIBRATION CONTROL FOR HVAC PIPING and

17、EQUIPMENT. Equipment shall be factory-balanced to this tolerance and re-balanced on site, as necessary. 2. After HVAC air balance work is completed and permanent drive sheaves are in place, perform field mechanical balancing and adjustments required to meet the specified vibration tolerance. D. Prod

18、ucts Criteria: 1. Standard Products: Material and equipment shall be the standard products of a manufacturer regularly engaged in the manufacture of the products for at least 3 years (or longer as specified elsewhere). The design, model and size of each item shall have been in satisfactory and effic

19、ient operation on at least three installations for approximately three years. However, digital electronics devices, software and systems such as controls, instruments, computer work station, shall be the current generation of technology and basic design that has a proven satisfactory service record

20、of at least three years. See other specification sections for any exceptions and/or additional requirements. 2. All items furnished shall be free from defects that would adversely affect the performance, maintainability and appearance of individual components and overall assembly. 3. Conform to code

21、s and standards as required by the specifications. Conform to local codes, if required by local authorities such as the natural gas supplier, if the local codes are more stringent then those specified. Refer any conflicts to the Resident Engineer. 4. Multiple Units: When two or more units of materia

22、ls or equipment of the same type or class are required, these units shall be products of one manufacturer. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-11-10 23 05 11 - 4 5. Assembled Units: Manufacturers of equipment assemblies, which use compone

23、nts made by others, assume complete responsibility for the final assembled product. 6. Nameplates: Nameplate bearing manufacturers name or identifiable trademark shall be securely affixed in a conspicuous place on equipment, or name or trademark cast integrally with equipment, stamped or otherwise p

24、ermanently marked on each item of equipment. 7. Asbestos products or equipment or materials containing asbestos shall not be used. E. Equipment Service Organizations: 1. HVAC: Products and systems shall be supported by service organizations that maintain a complete inventory of repair parts and are

25、located within 50 miles to the site. F. HVAC Mechanical Systems Welding: Before any welding is performed, contractor shall submit a certificate certifying that welders comply with the following requirements: 1. Qualify welding processes and operators for piping according to ASME “Boiler and Pressure

26、 Vessel Code“, Section IX, “Welding and Brazing Qualifications“. 2. Comply with provisions of ASME B31 series “Code for Pressure Piping“. 3. Certify that each welder has passed American Welding Society (AWS) qualification tests for the welding processes involved, and that certification is current. G

27、. Execution (Installation, Construction) Quality: 1. Apply and install all items in accordance with manufacturers written instructions. Refer conflicts between the manufacturers instructions and the contract drawings and specifications to the Resident Engineer for resolution. Provide written hard co

28、pies or computer files of manufacturers installation instructions to the Resident Engineer at least two weeks prior to commencing installation of any item. Installation of the item will not be allowed to proceed until the recommendations are received. Failure to furnish these recommendations is a ca

29、use for rejection of the material. 2. Provide complete layout drawings required by Paragraph, SUBMITTALS. Do not commence construction work on any system until the layout drawings have been approved. H. Upon request by Government, provide lists of previous installations for selected items of equipme

30、nt. Include contact persons who will serve as references, with telephone numbers and e-mail addresses. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-11-10 23 05 11 - 5 1.4 SUBMITTALS A. Submit in accordance with Section 01 33 23, SHOP DRAWINGS, PRO

31、DUCT DATA, AND SAMPLES, and with requirements in the individual specification sections. B. Contractor shall make all necessary field measurements and investigations to assure that the equipment and assemblies will meet contract requirements. C. If equipment is submitted which differs in arrangement

32、from that shown, provide drawings that show the rearrangement of all associated systems. Approval will be given only if all features of the equipment and associated systems, including accessibility, are equivalent to that required by the contract. D. Prior to submitting shop drawings for approval, c

33、ontractor shall certify in writing that manufacturers of all major items of equipment have each reviewed drawings and specifications, and have jointly coordinated and properly integrated their equipment and controls to provide a complete and efficient installation. E. Submittals and shop drawings fo

34、r interdependent items, containing applicable descriptive information, shall be furnished together and complete in a group. Coordinate and properly integrate materials and equipment in each group to provide a completely compatible and efficient. SPEC WRITER NOTE: Include the paragraph below if sampl

35、es are required for any specified items. /F. Samples: Samples will not be required, except for insulation or where materials offered differ from specification requirements. Samples shall be accompanied by full description of characteristics different from specification. The Government, at the Govern

36、ments expense, will perform evaluation and testing if necessary. The Contractor may submit samples of additional material at the Contractors option; however, if additional samples of materials are submitted later, pursuant to Government request, adjustment in contract price and time will be made as

37、provided under Article CHANGES of Section 00 72 00, GENERAL CONDITIONS./ SPEC WRITER NOTE: Include the paragraph below if mock-ups are required for any specified items. /G. Mock-ups: Mock-ups are required for critical items and typical component installations replicated numerous times throughout the

38、 project as directed by the Resident Engineer. The Resident Engineer and Medical Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-11-10 23 05 11 - 6 Center Representatives shall review and approve the mock-up prior to installation of additional applic

39、able components./ H. Layout Drawings: 1. Submit complete consolidated and coordinated layout drawings for all new systems, and for existing systems that are in the same areas. Refer to Section 00 72 00, GENERAL CONDITIONS, Article, SUBCONTRACTS AND WORK COORDINATION. 2. The drawings shall include pl

40、an views, elevations and sections of all systems and shall be on a scale of not less than 1:32 (3/8-inch equal to one foot). Clearly identify and dimension the proposed locations of the principal items of equipment. The drawings shall clearly show locations and adequate clearance for all equipment,

41、piping, valves, control panels and other items. Show the access means for all items requiring access for operations and maintenance. Provide detailed layout drawings of all piping and duct systems. 3. Do not install equipment foundations, equipment or piping until layout drawings have been approved.

42、 4. In addition, for HVAC systems, provide details of the following: a. Mechanical equipment rooms. /b. Interstitial space./ c. Hangers, inserts, supports, and bracing. d. Pipe sleeves. e. Duct or equipment penetrations of floors, walls, ceilings, or roofs. I. Manufacturers Literature and Data: Subm

43、it under the pertinent section rather than under this section. 1. Submit belt drive with the driven equipment. Submit selection data for specific drives when requested by the Resident Engineer. 2. Submit electric motor data and variable speed drive data with the driven equipment. 3. Equipment and ma

44、terials identification. 4. Fire-stopping materials. 5. Hangers, inserts, supports and bracing. Provide load calculations for variable spring and constant support hangers. 6. Wall, floor, and ceiling plates. J. HVAC Maintenance Data and Operating Instructions: 1. Maintenance and operating manuals in

45、accordance with Section 01 00 00, GENERAL REQUIREMENTS, Article, INSTRUCTIONS, for systems and equipment. 2. Provide a listing of recommended replacement parts for keeping in stock supply, including sources of supply, for equipment. Include in Provided by IHSNot for ResaleNo reproduction or networki

46、ng permitted without license from IHS-,-,-11-10 23 05 11 - 7 the listing belts for equipment: Belt manufacturer, model number, size and style, and distinguished whether of multiple belt sets. K. Provide copies of approved HVAC equipment submittals to the Testing, Adjusting and Balancing Subcontracto

47、r. 1.5 APPLICABLE PUBLICATIONS A. The publications listed below form a part of this specification to the extent referenced. The publications are referenced in the text by the basic designation only. B. Air Conditioning, Heating and Refrigeration Institute (AHRI): 430-2009 . Central Station Air-Handl

48、ing Units C. American National Standard Institute (ANSI): B31.1-2007 . Power Piping D. Rubber Manufacturers Association (ANSI/RMA): IP-20-2007 . Specifications for Drives Using Classical V-Belts and Sheaves IP-21-2009 . Specifications for Drives Using Double-V (Hexagonal) Belts IP-22-2007 . Specific

49、ations for Drives Using Narrow V-Belts and Sheaves E. Air Movement and Control Association (AMCA): 410-96 . Recommended Safety Practices for Air Moving Devices F. American Society of Mechanical Engineers (ASME): Boiler and Pressure Vessel Code (BPVC): Section I-2007 . Power Boilers Section IX-2007 Welding and Brazing Qualifications Code for Pressure Piping: B31.1-2007 . Power Piping G. Americ