M A R T I N P E V Z N E R E N G I N E E R I N G P. A. MECHANICAL SPECIFICATIONS MINNEAPOLIS PUBLIC HOUSING AUTHORITY MN 2-32 HOLLAND HIGHRISE

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1 M A R T I N P E V Z N E R E N G I N E E R I N G P. A. MECHANICAL SPECIFICATIONS MINNEAPOLIS PUBLIC HOUSING AUTHORITY MN 2-32 HOLLAND HIGHRISE 1717 WASHINGTON STREET NE PNEUMATIC VALVE CONVERSION MPE Project No PREPARED BY: MARTIN PEVZNER ENGINEERING P.A Old Cedar Ave South - Suite 100 Bloomington, MN Date: March 27, 2014

2 MPHA 1717 WASHINGTON STREET NE PNEUMATIC VALVE CONVERSION MECHANICAL I hereby certify that this specification was prepared by me or under my direct supervision and that I am a duly Licensed Engineer under the laws of the State of Minnesota Boris Pevzner Reg. No. Date CERTIFICATION SECTION

3 Mechanical Specifications - Table of Contents Common Work Results for HVAC General-Duty Valves for HVAC Piping Testing, Adjusting and Balancing for HVAC Hydronic Piping HVAC Water Treatment

4 SECTION COMMON WORK RESULTS FOR HVAC PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY A. This Section includes the following: 1. Piping materials and installation instructions common to most piping systems. 2. Transition fittings. 3. Dielectric fittings. 4. Mechanical sleeve seals. 5. Sleeves. 6. Escutcheons. 7. Equipment installation requirements common to equipment sections. 8. Supports and anchorages. 9. HVAC demolition 10. Grout 11. Equipment installation requirements common to equipment sections. 12. Painting and finishing. 1.3 DEFINITIONS A. Finished Spaces: Spaces other than mechanical and electrical equipment rooms, furred spaces, pipe chases, unheated spaces immediately below roof, spaces above ceilings, unexcavated spaces, crawlspaces, and tunnels. B. Exposed, Interior Installations: Exposed to view indoors. Examples include finished occupied spaces and mechanical equipment rooms. C. Exposed, Exterior Installations: Exposed to view outdoors or subject to outdoor ambient temperatures and weather conditions. Examples include rooftop locations. D. Concealed, Interior Installations: Concealed from view and protected from physical contact by building occupants. Examples include above ceilings and in chases. E. Concealed, Exterior Installations: Concealed from view and protected from weather conditions and physical contact by building occupants but subject to outdoor ambient temperatures. Examples include installations within unheated shelters. F. The following are industry abbreviations for plastic materials: COMMON WORK RESULTS FOR HVAC

5 1. PE: Polyethylene plastic. 2. PVC: Polyvinyl chloride plastic G. The following are industry abbreviations for rubber materials: 1. EPDM: Ethylene-propylene-diene terpolymer rubber. 2. NBR: Acrylonitrile-butadiene rubber. H. Accessible: Exposed or located behind easily openable or removable elements including ceiling tile and access doors. I. Contractor: Contractor party to Owner-Contractor Agreement and subcontractors responsible for Work under this Division. J. Engineer: Martin Pevzner Engineering, P.A. K. Owner: MPHA and its duly appointed representatives. L. Provide: Furnish and install in complete and operating condition. M. Product Data: Illustrations, standard schedules, performance charts, instructions, brochures, diagrams and other information furnished by Contractor to illustrate materials, equipment, and portions of Work. N. Samples: Physical examples illustrating materials, equipment and workmanship to establish standards for judging Work. O. Shop Drawings: Drawings, diagrams, schedules and other data specially prepared to illustrate some portion of Work. P. Work: Totality of obligations imposed on Contractor. 1.4 QUALITY ASSURANCE A. Regulatory Requirements: Compliance with applicable national, state, and local codes and referenced industry standards and specifications including: 1. State and Local Building Codes 2. State and Local Mechanical Codes 3. State and Local Plumbing Codes 4. National Fire Protection Association Codes (NFPA) 5. American Society of Mechanical Engineers Unfired Pressure Vessel Code 6. American National Standards Institute (ANSI) 7. National Electrical Code (NEC) 8. Occupational Safety and Health Administration (OSHA) B. Agency Approvals: Demonstrated by seal, label, or stamp whenever these specifications, referenced standards, or regulatory agencies require materials and equipment to conform to requirements of an inspection and testing agencies. COMMON WORK RESULTS FOR HVAC

6 C. Standard for Materials and Workmanship: New materials, free of defects, installed in accordance with manufacturer's current published recommendations, in neat manner, and in accordance with recognized standard industry practice. D. Equipment Nameplates: Permanently attached to each major equipment component including manufacturer's name, model and serial numbers, and address. E. Noise and Vibration: Limited to levels not objectionable to occupants and not detrimental to Owner operations, by balancing rotating and reciprocating equipment, and use of vibration isolating and noise abating products and installation procedures. F. Layout of Work: 1. Install equipment and run pipes parallel with and at right angles to lines of building unless shown otherwise on Drawings. 2. Lay out Work and be responsible for lines, elevations and measurements required for installation. 1.5 DELIVERY, STORAGE, AND HANDLING A. Deliver pipes and tubes with factory-applied end caps. Maintain end caps through shipping, storage, and handling to prevent pipe end damage and to prevent entrance of dirt, debris, and moisture. B. Provide for proper storage of materials and equipment and assume complete responsibility for losses and damage. C. Storage Area Limits: Within Contract limit lines of building site, and coordinated with General Contractor and Owner s representative. D. Existing Conditions: Verified, investigated to determine unknown conditions prior to beginning Work. 1.6 REFERENCES A. American Gas Association: 1515 Wilson Blvd., Arlington, VA B. American National Standards Institute, 1430 Broadway, New York, NY C. American Society of Mechanical Engineers, 345 E. 47th St., New York, NY. D. American Society for Testing Materials, 1916 Race St., Philadelphia, PA E. Building Officials and Code Administrators International, Inc., 4501 W. Flossmoor Rd., Country Club Hills, IL F. National Fire Protection Association, Batterymarch Park, Quincy, MA G. Underwriters' Laboratories, Inc., 333 Pfingsten Rd., Northbrook, IL COMMON WORK RESULTS FOR HVAC

7 1.7 DECLARATIONS A. Mechanical Drawings are diagrammatic, and are not intended to be scaled. B. Offsets, Fittings, and Accessories are not shown when precluded by Drawing production techniques or scales. 1. Provide accessories and offset fittings required for completed installation of fully functioning systems. C. Clarifications: Requested from Engineer when Contractor is uncertain of requirements. D. Dimensions: Taken from Architectural and Structural drawings, certified equipment drawings and from structure itself before fabricating Work. E. Space Requirements: Verified and coordinated with other trades prior to fabrication and installation of Work. 1.8 SUBMITTALS A. Administrative Procedures: In conformance with Division Exceptions to Specifications: Noted and justified with submittals. 2. Contractor's Failure to Note Exceptions may result in rejection of submittal or in rejection of Work after installation. 3. Approval of Exceptions will be based on Engineer's judgment that alternative materials, methods and procedures are equivalent or superior to specification requirements. 4. Engineer's Rejection of Exceptions will be final. B. Product and Equipment Shop Drawings: 1. Organization: In brochures for each specification section. 2. Contents: Clearly identified indicating specific types of equipment and materials to be furnished.: a. Technical Information: As necessary to communicate construction standards and details, demonstrate conformance to technical requirements of Drawings and Specifications and permit coordination with Work of other trades and subcontractors: 1) Manufacturer s names, model numbers. 2) Performance capabilities of equipment. 3) Materials of construction. 4) Special construction and fabrication techniques. 5) Dimensioned drawings. 6) Utility requirements. 7) Installation and service clearance requirements. 8) Explicit notation and justification of exceptions to specifications. b. Administrative Information: Provided on brochure and item cover pages. c. Brochure Cover Page Information: 1) Date 2) Project name. 3) Specification section number and title. 4) Subcontractor name and signature. 5) Approval stamps and signatures from requiring agencies. COMMON WORK RESULTS FOR HVAC

8 6) Minimum 4" by 6" white space reserved for engineer s use. d. Item Cover Page Information: 1) Equipment item number (corresponding to Drawings). 2) Itemization of related submittal documents.\ 3) Minimum 4" by 6" white space reserved for engineer s use. C. Record Drawings: 1. Drawings at Project Site: Maintained by Contractor. 2. Location Changes of Concealed Items: Recorded for valves, pipes, ducts, and other items requiring inspection, repair, and maintenance when final location is different than shown on Drawings. 3. Format: a. Quantity: 2 copies. b. Substantial Changes: Redraw on new sheets. D. Operation and Maintenance Manuals: 1. Provide O&M manuals as specified here, coordinate with equipment manufacturer. 2. Quantity: 2 copies. 3. Procedure: a. Collect manufacturer's literature, assemble information required by other Sections, and prepare additional information needed to provide complete manuals organized as described below. b. Submit for review by Engineer prior to conduct of training sessions. 4. Format: 8-1/2" by 11" loose leaf pages in 3-ring binders, indexed and tabbed. 1.9 SEQUENCING AND SCHEDULING A. Perform Work in discrete, consecutive phases as established by Construction Manager. Coordinate all staging, and phasing with construction manager through out work schedule. B. Interruption of Owner's Operations: 1. When Work under earlier phases is completed, and areas involved are occupied, Owner operations, activities, and functions in those areas shall not be hampered, degraded, obstructed or otherwise caused to be modified by Work occurring in later phases. 2. Owners operations, activities and functions in existing areas scheduled for remodel during later phases shall not be hampered, degraded, obstructed or otherwise caused to be modified by Work occurring in earlier phases. C. Pipe Systems: 1. Temporary Connections: Made to equipment wherever necessary to ensure continued function WARRANTY A. Special Warranties: As described elsewhere in this Division, extending and supplementing warranties contained in General Conditions. The entire work shall be covered by a 1-year warranty including parts and labor on all equipment and components. COMMON WORK RESULTS FOR HVAC

9 1.11 MAINTENANCE A. Maintenance Service: During warranty period for defective workmanship and material. 1. Emergency Service: Provide immediate, 24-hour response. 2. Normal Service: Non-emergency service may be performed during normal working hours SPECIFICATION LANGUAGE A. These specifications are written using imperative and streamlined forms. B. Imperative language is directed to Contractor, unless specifically noted otherwise. 1. Example imperative form statement followed by equivalent indicative form statement: a. Provide full face plates on devices. b. Full face plates shall be provided on devices by the Contractor. C. The words "shall be" are included by inference where a colon (:) follows underlined text within sentences and phrases, and preceding lists. 1. Example streamlined form statements followed by equivalent statements: a. Cabinet: Factory mounted. 1) Minimum Size: 24 high, 18 wide, 10 deep. 2) Material: 10 gauge steel. 3) Finish: Backed enamel. 4) Door: Flush mounted. 5) Hardware: Tamper proof. 6) Gaskets: Watertight. 7) Lock: Master keyed. 2. Cabinet shall be factory mounted. Minimum size of cabinet shall be 24 high, 18 wide, 10 deep. Cabinet material shall be 10 gauge steel. Cabinet finish shall be baked enamel. Cabinet door shall be flush mounted. Cabinet door hardware shall be tamper proof. Cabinet door gaskets shall be watertight. Cabinet door lock shall be master keyed. PART 2 - PRODUCTS 2.1 MANUFACTURERS A. In other Part 2 articles where subparagraph titles below introduce lists, the following requirements apply for product selection: 1. Manufacturers: Subject to compliance with requirements, provide products by the manufacturers specified. B. General Requirements: 1. Manufacturers' Names and Model Designations are essential parts of technical specifications and equipment schedules, and define requirements that are not otherwise described in these Documents. Elements of the building design which are affected by but not directly a part of the mechanical system components, are designed based upon the manufacturer s names and model designations listed in the technical specifications and COMMON WORK RESULTS FOR HVAC

10 equipment schedules. This includes but is not limited to the design of the structural support, penetrations of construction, electrical connections, piping connections, ductwork connections, and aesthetic appearance. 2. Substitutions: Per Division PIPE, TUBE, AND FITTINGS A. Refer to individual Division 23 piping Sections for pipe, tube, and fitting materials and joining methods. B. Pipe Threads: ASME B for factory-threaded pipe and pipe fittings. 2.3 JOINING MATERIALS A. Refer to individual Division 23 piping Sections for special joining materials not listed below. B. Pipe-Flange Gasket Materials: Suitable for chemical and thermal conditions of piping system contents. 1. ASME B16.21, nonmetallic, flat, asbestos-free, 1/8-inch maximum thickness unless thickness or specific material is indicated. a. Full-Face Type: For flat-face, Class 125, cast-iron and cast-bronze flanges. b. Narrow-Face Type: For raised-face, Class 250, cast-iron and steel flanges. 2. AWWA C110, rubber, flat face, 1/8 inch thick, unless otherwise indicated; and full-face or ring type, unless otherwise indicated. C. Flange Bolts and Nuts: ASME B18.2.1, carbon steel, unless otherwise indicated. D. Plastic, Pipe-Flange Gasket, Bolts, and Nuts: Type and material recommended by piping system manufacturer, unless otherwise indicated. E. Solder Filler Metals: ASTM B 32, lead-free alloys. Include water-flushable flux according to ASTM B 813. F. Brazing Filler Metals: AWS A5.8, BCuP Series, copper-phosphorus alloys for general-duty brazing, unless otherwise indicated; and AWS A5.8, BAg1, silver alloy for refrigerant piping, unless otherwise indicated. 2.4 TRANSITION FITTINGS A. AWWA Transition Couplings: Same size as, and with pressure rating at least equal to and with ends compatible with, piping to be joined. 1. Manufacturers: a. Cascade Waterworks Mfg. Co. b. Dresser Industries, Inc.; DMD Div. COMMON WORK RESULTS FOR HVAC

11 c. Ford Meter Box Company, Incorporated (The); Pipe Products Div. d. JCM Industries. e. Smith-Blair, Inc. f. Viking Johnson. 2. Underground Piping NPS 1-1/2 and Smaller: Manufactured fitting or coupling. 3. Underground Piping NPS 2 and Larger: AWWA C219, metal sleeve-type coupling. 4. Aboveground Pressure Piping: Pipe fitting. 2.5 DIELECTRIC FITTINGS A. Description: Combination fitting of copper alloy and ferrous materials with threaded, solderjoint, plain, or weld-neck end connections that match piping system materials. B. Insulating Material: Suitable for system fluid, pressure, and temperature. C. Dielectric Unions: Factory-fabricated, union assembly, for 250-psig minimum working pressure at 180 deg F. 1. Manufacturers: a. Capitol Manufacturing Co. b. Central Plastics Company. c. Eclipse, Inc. d. Epco Sales, Inc. e. Hart Industries, International, Inc. f. Watts Industries, Inc.; Water Products Div. g. Zurn Industries, Inc.; Wilkins Div. D. Dielectric Nipples: Electroplated steel nipple with inert and noncorrosive, thermoplastic lining; plain, threaded, or grooved ends; and 300-psig minimum working pressure at 225 deg F. 1. Manufacturers: a. Perfection Corp. b. Precision Plumbing Products, Inc. c. Sioux Chief Manufacturing Co., Inc. d. Victaulic Co. of America. 2.6 SPECIAL TOOLS AND EQUIPMENT A. Turn over to Owner special tools and equipment that are required for assembly, setting, adjustment, and maintenance of equipment furnished under Division 23 if tools are not commercially available. COMMON WORK RESULTS FOR HVAC

12 PART 3 - EXECUTION 3.1 HVAC DEMOLITION A. Refer to Division 01 Sections "Cutting and Patching" and Division 02 Section "Selective Structure Demolition" for general demolition requirements and procedures. B. Disconnect, demolish, and remove HVAC systems, equipment, and components indicated to be removed. 1. Piping to Be Removed: Remove portion of piping indicated to be removed and cap or plug remaining piping with same or compatible piping material. 2. Equipment to Be Removed: Disconnect and cap services and remove equipment. C. If pipe, insulation, or equipment to remain is damaged in appearance or is unserviceable, remove damaged or unserviceable portions and replace with new products of equal capacity and quality. 3.2 PIPING SYSTEMS - COMMON REQUIREMENTS A. Install piping according to the following requirements and Division 23 Sections specifying piping systems. B. Drawing plans, schematics, and diagrams indicate general location and arrangement of piping systems. Indicated locations and arrangements were used to size pipe and calculate friction loss, expansion, pump sizing, and other design considerations. Install piping as indicated unless deviations to layout are approved on Coordination Drawings. C. Install piping in concealed locations, unless otherwise indicated and except in equipment rooms and service areas. D. Install piping indicated to be exposed and piping in equipment rooms and service areas at right angles or parallel to building walls. Diagonal runs are prohibited unless specifically indicated otherwise. E. Install piping above accessible ceilings to allow sufficient space for ceiling panel removal. F. Install piping to permit valve servicing. G. Install piping at indicated slopes. H. Install piping free of sags and bends. I. Install fittings for changes in direction and branch connections. J. Install piping to allow application of insulation. K. Select system components with pressure rating equal to or greater than system operating pressure. COMMON WORK RESULTS FOR HVAC

13 3.3 PIPING JOINT CONSTRUCTION A. Join pipe and fittings according to the following requirements and Division 22 Sections specifying piping systems. B. Ream ends of pipes and tubes and remove burrs. Bevel plain ends of steel pipe. C. Remove scale, slag, dirt, and debris from inside and outside of pipe and fittings before assembly. D. Soldered Joints: Apply ASTM B 813, water-flushable flux, unless otherwise indicated, to tube end. Construct joints according to ASTM B 828 or CDA's "Copper Tube Handbook," using lead-free solder alloy complying with ASTM B 32. E. Brazed Joints: Construct joints according to AWS's "Brazing Handbook," "Pipe and Tube" Chapter, using copper-phosphorus brazing filler metal complying with AWS A5.8. F. Threaded Joints: Thread pipe with tapered pipe threads according to ASME B Cut threads full and clean using sharp dies. Ream threaded pipe ends to remove burrs and restore full ID. Join pipe fittings and valves as follows: 1. Apply appropriate tape or thread compound to external pipe threads unless dry seal threading is specified. 2. Damaged Threads: Do not use pipe or pipe fittings with threads that are corroded or 3.4 PIPING CONNECTIONS A. Make connections according to the following, unless otherwise indicated: 1. Install unions, in piping NPS 2 and smaller, adjacent to each valve and at final connection to each piece of equipment. 2. Install flanges, in piping NPS 2-1/2 and larger, adjacent to flanged valves and at final connection to each piece of equipment. 3. Dry Piping Systems: Install dielectric unions and flanges to connect piping materials of dissimilar metals. 4. Wet Piping Systems: Install dielectric coupling and nipple fittings to connect piping materials of dissimilar metals. 3.5 INSTALLATION AND ARRANGEMENT OF THE WORK A. Component Removal: Facilitated by arranging work to permit removal of coils, heat exchanger bundles, boiler tubes, fan shafts and wheels, filters, belt guards, sheaves and drives, and other replaceable parts. B. Service Access: Maintained by arranging pipes, ducts, and equipment to permit ready access to valves, traps, starters, motors, control components and opening of access doors and of access panels. COMMON WORK RESULTS FOR HVAC

14 C. Offsets, Transitions and Changes in Direction in Pipes and Ducts: Made as required to maintain proper headroom and pitch of sloping lines. D. Piping in Finished Areas: Concealed except where otherwise noted on Drawings. E. Equipment Installation: In accordance with manufacturer's recommendations, unless otherwise approved by Engineer in writing. F. Procedure for Resolution of Space Conflicts: Where conflicts between trades occur and departures from Documents are necessary, consult with other affected trades, reach agreement on proposed changes, and obtain Engineer s approval before proceeding. 3.6 WORK IN EXISTING BUILDINGS A. Comply with requirements of Division 01 for Work in existing building(s). B. Disposition of Removed Materials: 1. Do not reuse removed materials unless explicitly permitted by Documents. 2. Removed Materials: Contractors property unless specified otherwise. C. Disposition of Removed Equipment: 1. Removed Equipment: Contractors property unless specified otherwise. D. Existing Construction: Protected from damage during adjacent demolition Work. E. Procedures for Interruption of Owner's Operations: 1. Permission: Obtained from Owner before disruption of existing facility occurs. 2. Duration: Limited to time periods approved by Owner by assigning adequate sized crews and using overtime compensation. F. New Work: Protected as each piece is completed and delivered in clean and new condition at final completion. 1. Pipe and Duct Openings: Closed with temporary caps or plugs during installation. 2. Fixtures and Equipment: Covered and protected against damage. 3. Completion: Deliver Work in clean and "new" condition at final completion. 3.7 CLEANING AND PLACING IN OPERATION A. Project Site: Kept in clean and orderly condition during construction. Promptly remove waste, unusable material, and surplus material. B. Finished Work: Protected against damage until final acceptance. C. Final Cleaning: Upon completion of work. 1. Clean equipment surfaces of foreign material, leaving work in neat and clean order and in complete working condition. COMMON WORK RESULTS FOR HVAC

15 3.8 TRAINING A. General: Instruct Owner's personnel in proper operation and maintenance of mechanical systems. END OF SECTION COMMON WORK RESULTS FOR HVAC

16 SECTION GENERAL-DUTY VALVES FOR HVAC PIPING PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY A. Section Includes: 1. Bronze ball valves. 2. Balancing valves. 3. Self-contained thermostatic regulating valves. B. Related Sections: 1. Division 23 HVAC piping Sections for specialty valves applicable to those Sections only. 1.3 DEFINITIONS A. CWP: Cold working pressure. B. NBR: Acrylonitrile-butadiene, Buna-N, or nitrile rubber. 1.4 SUBMITTALS A. Product Data: For each type of valve indicated. 1.5 QUALITY ASSURANCE A. Source Limitations for Valves: Obtain each type of valve from single source from single manufacturer. B. ASME Compliance: 1. ASME B16.10 and ASME B16.34 for ferrous valve dimensions and design criteria. 2. ASME B31.1 for power piping valves. 3. ASME B31.9 for building services piping valves. GENERAL-DUTY VALVES FOR HVAC PIPING

17 1.6 DELIVERY, STORAGE, AND HANDLING A. Prepare valves for shipping as follows: 1. Protect internal parts against rust and corrosion. 2. Protect threads, flange faces, grooves, and weld ends. 3. Set angle, gate, and globe valves closed to prevent rattling. 4. Set ball and plug valves open to minimize exposure of functional surfaces. 5. Set butterfly valves closed or slightly open. 6. Block check valves in either closed or open position. B. Use the following precautions during storage: 1. Maintain valve end protection. 2. Store valves indoors and maintain at higher than ambient dew point temperature. If outdoor storage is necessary, store valves off the ground in watertight enclosures. PART 2 - PRODUCTS 2.1 GENERAL REQUIREMENTS FOR VALVES A. Refer to HVAC valve schedule articles for applications of valves. B. Valve Pressure and Temperature Ratings: Not less than indicated and as required for system pressures and temperatures. C. Valve Sizes: Same as upstream piping unless otherwise indicated. D. Valve-End Connections: 1. Grooved: With grooves according to AWWA C Solder Joint: With sockets according to ASME B Threaded: With threads according to ASME B BRONZE BALL VALVES A. Two-Piece, Full-Port, Bronze Ball Valves with Stainless-Steel Trim: 1. Manufacturers: Subject to compliance with requirements, provide products by one of the following: a. Conbraco Industries, Inc.; Apollo Valves. b. Crane Co.; Crane Valve Group; Crane Valves. c. Hammond Valve. d. Lance Valves; a division of Advanced Thermal Systems, Inc. e. Milwaukee Valve Company. f. NIBCO INC. g. Watts Regulator Co.; a division of Watts Water Technologies, Inc. GENERAL-DUTY VALVES FOR HVAC PIPING

18 2. Description: a. Standard: MSS SP-110. b. SWP Rating: 150 psig. c. CWP Rating: 600 psig. d. Body Design: Two piece. e. Body Material: Bronze. f. Ends: Threaded. g. Seats: PTFE or TFE. h. Stem: Stainless steel. i. Ball: Stainless steel, vented. 2.3 BALANCING VALVES A. Bronze, Calibrated Balancing Valves: 1. Manufacturers: Subject to compliance with requirements, provide products by one of the following: a. Armstrong Pumps, Inc. b. Bell & Gossett Domestic Pump; a division of ITT Industries. c. Flow Design Inc. d. Gerand Engineering Co. e. Griswold Controls. f. Taco. 2. Body: Bronze, ball or plug type with calibrated venturi. 3. Ball: Brass or stainless steel. 4. Plug: Resin. 5. Seat: PTFE. 6. End Connections: Threaded or socket. 7. Pressure Gage Connections: Integral seals for portable differential pressure meter. 8. Handle Style: Lever, with memory stop to retain set position. 9. CWP Rating: Minimum 125 psig. 10. Maximum Operating Temperature: 250 deg F. 2.4 THERMOSTATIC REGULATING VALVES A. Thermostatic Radiator Valves: 1. Manufacturers: Provide product by the following manufacturer: a. Danfoss, Inc. 2. General: Thermostatic radiator valve assembly consisting of brass valve body and thermostatic operator. 3. Conformance: ASHRAE/ANSI GENERAL-DUTY VALVES FOR HVAC PIPING

19 4. Packing gland assembly: Capable of replacing while the system is in operation. 5. Valve Body Arrangement and Connections: Straight FPTxMPT union tailpiece or double solder union as required for selected pipe material (steel or copper). 6. Operator: Combined remote mounted dial and sensor. 7. Model: RA PART 3 - EXECUTION 3.1 EXAMINATION A. Examine valve interior for cleanliness, freedom from foreign matter, and corrosion. Remove special packing materials, such as blocks, used to prevent disc movement during shipping and handling. B. Operate valves in positions from fully open to fully closed. Examine guides and seats made accessible by such operations. C. Examine threads on valve and mating pipe for form and cleanliness. D. Examine mating flange faces for conditions that might cause leakage. Check bolting for proper size, length, and material. Verify that gasket is of proper size, that its material composition is suitable for service, and that it is free from defects and damage. E. Do not attempt to repair defective valves; replace with new valves. 3.2 VALVE INSTALLATION A. Install valves with unions or flanges at each piece of equipment arranged to allow service, maintenance, and equipment removal without system shutdown. B. Locate valves for easy access and provide separate support where necessary. C. Install valves in horizontal piping with stem at or above center of pipe. D. Install valves in position to allow full stem movement. 3.3 ADJUSTING A. Adjust or replace valve packing after piping systems have been tested and put into service but before final adjusting and balancing. Replace valves if persistent leaking occurs. 3.4 GENERAL REQUIREMENTS FOR VALVE APPLICATIONS A. If valve applications are not indicated, use the following: GENERAL-DUTY VALVES FOR HVAC PIPING

20 1. Shutoff Service: Ball. 2. Balancing Valves: Calibrated venturi ball valves. 3. FTR valves: Self-contained thermostatic radiator valves. B. Select valves, except wafer types, with the following end connections: 1. For Copper Tubing, NPS 2 and Smaller: Threaded ends except where solder-joint valveend option is indicated in valve schedules below. 3.5 HEATING-WATER VALVE SCHEDULE A. Pipe NPS 3 and Smaller: 1. Bronze Valves: May be provided with solder-joint ends instead of threaded ends. 2. Ball Valves: Two piece, full port, with stainless-steel trim. END OF SECTION GENERAL-DUTY VALVES FOR HVAC PIPING

21 SECTION TESTING, ADJUSTING, AND BALANCING FOR HVAC PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY A. Section Includes: 1. Testing, Adjusting & Balancing of Hydronic Systems: a. Variable-flow hydronic systems. B. The following systems shall be balanced as part of this work: 1. Hydronic hot water loops (high-pressure and low-pressure) including FTR balancing valves and main distribution pumps. 1.3 DEFINITIONS A. AABC: Associated Air Balance Council. B. NEBB: National Environmental Balancing Bureau. C. TAB: Testing, adjusting, and balancing. D. TABB: Testing, Adjusting, and Balancing Bureau. E. TAB Specialist: An entity engaged to perform TAB Work. 1.4 SUBMITTALS A. Qualification Data: Within 30 days of Contractor's Notice to Proceed, submit documentation that the TAB contractor and this Project's TAB team members meet the qualifications specified in "Quality Assurance" Article. B. Contract Documents Examination Report: Within 60 days of Contractor's Notice to Proceed, submit the Contract Documents review report as specified in Part 3. C. Strategies and Procedures Plan: Within 90 days of Contractor's Notice to Proceed, submit TAB strategies and step-by-step procedures as specified in "Preparation" Article. D. Sample report forms. E. Instrument calibration reports, to include the following: 1. Instrument type and make. 2. Serial number. 3. Application. 4. Dates of use. 5. Dates of calibration. 1.5 QUALITY ASSURANCE A. TAB Contractor Qualifications: Engage a TAB entity certified by AABC NEBB. 1. TAB Field Supervisor: Employee of the TAB contractor and certified by AABC or NEBB. TESTING, ADJUSTING, AND BALANCING FOR HVAC

22 2. TAB Technician: Employee of the TAB contractor and who is certified by AABC or NEBB as a TAB technician. B. TAB Conference: Meet with Owner Construction Manager, Design Engineer of Record and Commissioning Authority on approval of the TAB strategies and procedures plan to develop a mutual understanding of the details. Require the participation of the TAB field supervisor and technicians. Provide seven days' advance notice of scheduled meeting time and location. 1. Agenda Items: a. The Contract Documents examination report. b. The TAB plan. c. Coordination and cooperation of trades and subcontractors. d. Coordination of documentation and communication flow. C. Certify TAB field data reports and perform the following: 1. Review field data reports to validate accuracy of data and to prepare certified TAB reports. 2. Certify that the TAB team complied with the approved TAB plan and the procedures specified and referenced in this Specification. D. TAB Report Forms: Use standard TAB contractor's forms approved by Engineer of Record and Commissioning Authority. E. Instrumentation Type, Quantity, Accuracy, and Calibration: As described in ASHRAE 111, Section 5, "Instrumentation." 1.6 PROJECT CONDITIONS A. Full Owner Occupancy: Owner will occupy the site and existing building during entire TAB period. Cooperate with Owner during TAB operations to minimize conflicts with Owner's operations. B. Partial Owner Occupancy: Owner may occupy completed areas of building before Substantial Completion. Cooperate with Owner during TAB operations to minimize conflicts with Owner's operations. 1.7 COORDINATION A. Notice: Provide seven days' advance notice for each test. Include scheduled test dates and times. B. Perform TAB after leakage and pressure tests on air and water distribution systems have been satisfactorily completed. PART 2 - PRODUCTS (Not Applicable) PART 3 - EXECUTION 3.1 TAB SPECIALISTS A. Subject to compliance with requirements, engage one of the following: 1. BAL-TECH 2. Systems Management and Balancing 3. International Test & Balance TESTING, ADJUSTING, AND BALANCING FOR HVAC

23 3.2 EXAMINATION A. Examine the Contract Documents to become familiar with Project requirements and to discover conditions in systems' designs that may preclude proper TAB of systems and equipment. B. Examine systems for installed balancing devices, such as test ports, gage cocks, thermometer wells, flow-control devices, balancing valves and fittings. Verify that locations of these balancing devices are accessible. C. Examine the approved submittals for HVAC systems and equipment. D. Examine design data including HVAC system descriptions, statements of design assumptions for environmental conditions and systems' output, and statements of philosophies and assumptions about HVAC system and equipment controls. E. Examine system and equipment installations and verify that field quality-control testing, cleaning, and adjusting specified in individual Sections have been performed. F. Examine test reports specified in individual system and equipment Sections. G. Examine strainers. Verify that startup screens are replaced by permanent screens with indicated perforations. H. Examine system pumps to ensure absence of entrained air in the suction piping. I. Examine operating safety interlocks and controls on HVAC equipment. J. Report deficiencies discovered before and during performance of TAB procedures. Observe and record system reactions to changes in conditions. Record default set points if different from indicated values. 3.3 PREPARATION A. Prepare a TAB plan that includes strategies and step-by-step procedures. B. Complete system-readiness checks and prepare reports. Verify the following: 1. Permanent electrical-power wiring is complete. 2. Hydronic systems are filled, clean, and free of air. 3. Automatic temperature-control systems are operational. 4. Equipment and duct access doors are securely closed. 5. Isolating and balancing valves are open and control valves are operational. 3.4 GENERAL PROCEDURES FOR TESTING AND BALANCING A. Perform testing and balancing procedures on each system according to the procedures contained in AABC's "National Standards for Total System Balance" or NEBB's "Procedural Standards for Testing, Adjusting, and Balancing of Environmental Systems" and SMACNA's "HVAC Systems - Testing, Adjusting, and Balancing" and ASHRAE 111and in this Section. B. Mark equipment and balancing devices, including valve position indicators and similar controls and devices, with paint or other suitable, permanent identification material to show final settings. C. Take and report testing and balancing measurements in inch-pound (IP) units. TESTING, ADJUSTING, AND BALANCING FOR HVAC

24 3.5 GENERAL PROCEDURES FOR HYDRONIC SYSTEMS A. Prepare test reports with pertinent design data, and number in sequence starting at pump to end of system. Check the sum of branch-circuit flows against the approved pump flow rate. Correct variations that exceed plus or minus 5 percent. B. Prepare schematic diagrams of systems' "as-built" piping layouts. C. Prepare hydronic systems for testing and balancing according to the following, in addition to the general preparation procedures specified above: 1. Open all manual valves for maximum flow. 2. Check liquid level in expansion tank. 3. Check makeup water-station pressure gage for adequate pressure for highest vent. 4. Check flow-control valves for specified sequence of operation, and set at indicated flow. 5. Set differential-pressure control valves at the specified differential pressure. Do not set at fully closed position when pump is positive-displacement type unless several terminal valves are kept open. 6. Check pump-motor load. If motor is overloaded, throttle main flow-balancing device so motor nameplate rating is not exceeded. 7. Check air vents for a forceful liquid flow exiting from vents when manually operated. 3.6 PROCEDURES FOR CONSTANT-FLOW HYDRONIC SYSTEMS A. Measure water flow at pumps. Use the following procedures except for positive-displacement pumps: 1. Verify impeller size by operating the pump with the discharge valve closed. Read pressure differential across the pump. Convert pressure to head and correct for differences in gage heights. Note the point on manufacturer's pump curve at zero flow and verify that the pump has the intended impeller size. a. If impeller sizes must be adjusted to achieve pump performance, obtain approval from Engineer of Record and comply with requirements in Division 23 Section "Hydronic Pumps." 2. Check system resistance. With all valves open, read pressure differential across the pump and mark pump manufacturer's head-capacity curve. Adjust pump discharge valve until indicated water flow is achieved. a. Monitor motor performance during procedures and do not operate motors in overload conditions. 3. Verify pump-motor brake horsepower. Calculate the intended brake horsepower for the system based on pump manufacturer's performance data. Compare calculated brake horsepower with nameplate data on the pump motor. Report conditions where actual amperage exceeds motor nameplate amperage. 4. Report flow rates that are not within plus or minus 10 percent of design. B. Measure flow at all automatic flow control valves to verify that valves are functioning as designed. C. Measure flow at all pressure-independent characterized control valves, with valves in fully open position, to verify that valves are functioning as designed. D. Set calibrated balancing valves, if installed, at calculated presettings. E. Measure flow at all stations and adjust, where necessary, to obtain first balance. 1. System components that have Cv rating or an accurately cataloged flow-pressure-drop relationship may be used as a flow-indicating device. TESTING, ADJUSTING, AND BALANCING FOR HVAC

25 F. Measure flow at main balancing station and set main balancing device to achieve flow that is 5 percent greater than indicated flow. G. Adjust balancing stations to within specified tolerances of indicated flow rate as follows: 1. Determine the balancing station with the highest percentage over indicated flow. 2. Adjust each station in turn, beginning with the station with the highest percentage over indicated flow and proceeding to the station with the lowest percentage over indicated flow. 3. Record settings and mark balancing devices. H. Measure pump flow rate and make final measurements of pump amperage, voltage, rpm, pump heads, and systems' pressures and temperatures including outdoor-air temperature. I. Measure the differential-pressure-control-valve settings existing at the conclusion of balancing. J. Check settings and operation of each safety valve. Record settings. 3.7 PROCEDURES FOR VARIABLE-FLOW HYDRONIC SYSTEMS A. Balance systems with automatic two- and three-way control valves by setting systems at maximum flow through heat-exchange terminals and proceed as specified above for hydronic systems. B. Set minimum chilled water pump speed at VFD to ensure minimum flow for chiller is always met regardless of valve positions. 3.8 PROCEDURES FOR MOTORS A. Motors, 1/2 HP and Larger: Test at final balanced conditions and record the following data: 1. Manufacturer's name, model number, and serial number. 2. Motor horsepower rating. 3. Motor rpm. 4. Efficiency rating. 5. Nameplate and measured voltage, each phase. 6. Nameplate and measured amperage, each phase. 7. Starter thermal-protection-element rating. B. Motors Driven by Variable-Frequency Controllers: Test for proper operation at speeds varying from minimum to maximum. Test the manual bypass of the controller to prove proper operation. Record observations including name of controller manufacturer, model number, serial number, and nameplate data. 3.9 TOLERANCES A. Set HVAC system's air flow rates and water flow rates within the following tolerances: 1. Heating-Water Flow Rate: Plus or minus 10 percent REPORTING A. Initial Construction-Phase Report: Based on examination of the Contract Documents as specified in "Examination" Article, prepare a report on the adequacy of design for systems' balancing devices. Recommend changes and additions to systems' balancing devices to facilitate proper performance measuring and balancing. Recommend changes and additions to HVAC systems and general construction to allow access for performance measuring and balancing devices. TESTING, ADJUSTING, AND BALANCING FOR HVAC

26 3.11 FINAL REPORT A. General: Prepare a certified written report; tabulate and divide the report into separate sections for tested systems and balanced systems. 1. Include a certification sheet at the front of the report's binder, signed and sealed by the certified testing and balancing engineer. 2. Include a list of instruments used for procedures, along with proof of calibration. B. Final Report Contents: In addition to certified field-report data, include the following: 1. Pump curves. 2. Manufacturers' test data. 3. Field test reports prepared by system and equipment installers. 4. Other information relative to equipment performance; do not include Shop Drawings and product data. C. General Report Data: In addition to form titles and entries, include the following data: 1. Title page. 2. Name and address of the TAB contractor. 3. Project name. 4. Project location. 5. Architect's name and address. 6. Engineer's name and address. 7. Contractor's name and address. 8. Report date. 9. Signature of TAB supervisor who certifies the report. 10. Table of Contents with the total number of pages defined for each section of the report. Number each page in the report. 11. Summary of contents including the following: a. Indicated versus final performance. b. Notable characteristics of systems. c. Description of system operation sequence if it varies from the Contract Documents. 12. Nomenclature sheets for each item of equipment. 13. Data for terminal units, including manufacturer's name, type, size, and fittings. 14. Notes to explain why certain final data in the body of reports vary from indicated values. D. System Diagrams: Include schematic layouts of air and hydronic distribution systems. Present each system with single-line diagram and include the following: 1. Water flow rates. 2. Pipe and valve sizes and locations. 3. Terminal units. 4. Balancing stations. 5. Position of balancing devices. E. Pump Test Reports: Calculate impeller size by plotting the shutoff head on pump curves and include the following: 1. Unit Data: a. Unit identification. b. Location. c. Service. d. Make and size. e. Model number and serial number. f. Water flow rate in gpm. TESTING, ADJUSTING, AND BALANCING FOR HVAC

27 g. Water pressure differential in feet of head or psig. h. Required net positive suction head in feet of head or psig. i. Pump rpm. j. Impeller diameter in inches. k. Motor make and frame size. l. Motor horsepower and rpm. m. Voltage at each connection. n. Amperage for each phase. o. Full-load amperage and service factor. p. Seal type. 2. Test Data (Indicated and Actual Values): a. Static head in feet of head or psig. b. Pump shutoff pressure in feet of head or psig. c. Actual impeller size in inches. d. Full-open flow rate in gpm. e. Full-open pressure in feet of head or psig. f. Final discharge pressure in feet of head or psig. g. Final suction pressure in feet of head or psig. h. Final total pressure in feet of head or psig. i. Final water flow rate in gpm. j. Voltage at each connection. k. Amperage for each phase. F. Instrument Calibration Reports: 1. Report Data: a. Instrument type and make. b. Serial number. c. Application. d. Dates of use. e. Dates of calibration INSPECTIONS A. Initial Inspection: 1. After testing and balancing are complete, operate each system and randomly check measurements to verify that the system is operating according to the final test and balance readings documented in the final report. a. Verify that balancing devices are marked with final balance position. b. Note deviations from the Contract Documents in the final report. B. Final Inspection: 1. After initial inspection is complete and documentation by random checks verifies that testing and balancing are complete and accurately documented in the final report, request that a final inspection be made by Engineer of Record. 2. The TAB contractor's test and balance engineer shall conduct the inspection in the presence of Engineer of Record. 3. Engineer of Record shall randomly select measurements, documented in the final report, to be rechecked. Rechecking shall be limited to either 10 percent of the total measurements recorded or the extent of measurements that can be accomplished in a normal 8-hour business day. TESTING, ADJUSTING, AND BALANCING FOR HVAC

28 4. If rechecks yield measurements that differ from the measurements documented in the final report by more than the tolerances allowed, the measurements shall be noted as "FAILED." 5. If the number of "FAILED" measurements is greater than 10 percent of the total measurements checked during the final inspection, the testing and balancing shall be considered incomplete and shall be rejected. C. TAB Work will be considered defective if it does not pass final inspections. If TAB Work fails, proceed as follows: 1. Recheck all measurements and make adjustments. Revise the final report and balancing device settings to include all changes; resubmit the final report and request a second final inspection. 2. If the second final inspection also fails, Owner may contract the services of another TAB contractor to complete TAB Work according to the Contract Documents and deduct the cost of the services from the original TAB contractor's final payment. D. Prepare test and inspection reports ADDITIONAL TESTS A. Within 90 days of completing TAB, perform additional TAB to verify that balanced conditions are being maintained throughout and to correct unusual conditions. B. Seasonal Periods: If initial TAB procedures were not performed during near-peak summer and winter conditions, perform additional TAB during near-peak summer and winter conditions. END OF SECTION TESTING, ADJUSTING, AND BALANCING FOR HVAC

29 SECTION HYDRONIC PIPING PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY A. This Section includes pipe and fitting materials, joining methods, special-duty valves, and specialties for the following: 1. Hot-water heating piping. 1.3 SUBMITTALS A. Product Data: For each type of the following: 1. Valves. Include flow and pressure drop curves based on manufacturer's testing for calibrated-orifice balancing valves and automatic flow-control valves. 2. Air control devices. 3. Hydronic specialties. B. Operation and Maintenance Data: For air control devices, hydronic specialties, and special-duty valves to include in emergency, operation, and maintenance manuals. 1.4 QUALITY ASSURANCE A. Steel Support Welding: Qualify processes and operators according to AWS D1.1/D1.1M, "Structural Welding Code - Steel." B. ASME Compliance: Comply with ASME B31.9, "Building Services Piping," for materials, products, and installation. Safety valves and pressure vessels shall bear the appropriate ASME label. Fabricate and stamp air separators and expansion tanks to comply with ASME Boiler and Pressure Vessel Code: Section VIII, Division EXTRA MATERIALS A. Differential Pressure Meter: For each type of balancing valve and automatic flow control valve, include flowmeter, probes, hoses, flow charts, and carrying case. HYDRONIC PIPING

30 PART 2 - PRODUCTS 2.1 COPPER TUBE AND FITTINGS A. Drawn-Temper Copper Tubing: ASTM B 88, Type L. B. DWV Copper Tubing: ASTM B 306, Type DWV. C. Wrought-Copper Fittings: ASME B Manufacturers: Subject to compliance with requirements, provide products by one of the following: a. Anvil International, Inc. b. S. P. Fittings; a division of Star Pipe Products. c. Victaulic Company of America. 2. Grooved-End Copper Fittings: ASTM B 75, copper tube or ASTM B 584, bronze casting. D. Wrought-Copper Unions: ASME B STEEL PIPE AND FITTINGS A. Steel Pipe: ASTM A 53/A 53M, black steel with plain ends; type, grade, and wall thickness as indicated in Part 3 "Piping Applications" Article. B. Cast-Iron Threaded Fittings: ASME B16.4; Classes 125 and 250 as indicated in Part 3 "Piping Applications" Article. C. Malleable-Iron Threaded Fittings: ASME B16.3, Classes 150 and 300 as indicated in Part 3 "Piping Applications" Article. D. Malleable-Iron Unions: ASME B16.39; Classes 150, 250, and 300 as indicated in Part 3 "Piping Applications" Article. E. Wrought-Steel Fittings: ASTM A 234/A 234M, wall thickness to match adjoining pipe. F. Steel Pipe Nipples: ASTM A 733, made of same materials and wall thicknesses as pipe in which they are installed. 2.3 JOINING MATERIALS A. Solder Filler Metals: ASTM B 32, lead-free alloys. Include water-flushable flux according to ASTM B 813. B. Brazing Filler Metals: AWS A5.8, BCuP Series, copper-phosphorus alloys for joining copper with copper; or BAg-1, silver alloy for joining copper with bronze or steel. HYDRONIC PIPING