19005me - lake street fire station nashua - hvac

19005ME - Lake Street Fire Station Nashua - HVAC Replacement

23 05 00- 1 COMMON WORK RESULTS FOR HVAC

SECTION 23 05 00COMMON WORK RESULTS FOR HVAC

PART 1 GENERAL1.01 DESCRIPTION OF HVAC SYSTEMS

A. Split Air Handling UnitsB. DX Condensing UnitsC. System commissioningD. Testing and BalancingE. Piping, valves and specialtiesF. Thermal and acoustic insulationG. Seismic restraints and bracingH. Automated controlsI. Ductwork and associated specialtiesJ. Motor controls, VFD's and starters

1.02 THIS SECTION INCLUDES THE FOLLOWING:A. Piping materials and installation instructions common to most piping systems.B. Transition fittings.C. Dielectric fittings.D. Mechanical sleeve seals.E. Sleeves.F. Escutcheons.G. Grout.H. HVAC demolition.I. Equipment installation requirements common to equipment sections.J. Painting and finishing.K. Concrete bases.L. Supports and anchorages.

1.03 DEFINITIONSA. Finished Spaces: Spaces other than mechanical and electrical equipment rooms, furred

spaces, pipe and duct 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 occupiedspaces and mechanical equipment rooms.

C. Exposed, Exterior Installations: Exposed to view outdoors or subject to outdoor ambienttemperatures and weather conditions. Examples include rooftop locations.

D. Concealed, Interior Installations: Concealed from view and protected from physical contact bybuilding occupants. Examples include above ceilings and chases.

E. Concealed, Exterior Installations: Concealed from view and protected from weather conditionsand 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:1. CPVC: Chlorinated polyvinyl chloride plastic.2. PE: Polyethylene plastic.3. 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.

1.04 SUBMITTALSA. Product Data: For the following:

1. Transition fittings.2. Dielectric fittings.3. Mechanical sleeve seals.4. Escutcheons.

B. Welding certificates.C. Welding: Before proceeding, submit the following for review and approval;

1. Proposed procedure conforming to latest revision of:a. ANSI/ASME B31.1, pressure piping chapter V.b. ANSI/ASME B31.9, Building Services Pipingc. ANSI 249.1 Safety in Welding and Cuttingd. List of welders qualified per section IX of ASME. Boiler and Pressure Vessel Code

including, but not limited to, the following information:1) Welder’s name2) Welder’s Social Security Number3) Employer’s name4) Name of testing laboratory5) Procedure tested for including, but not limited to, the following:

(a) Date of test(b) Wall thickness(c) Base metal material(d) Electrode(e) Position

6) Type of test performed7) Result of test8) Welder’s identification symbol9) Sample of each identification device10) Certify that each welder has either worked in the procedure or successfully

tested in the procedure within the past six months11) WPQ12) PQR13) WPS

2. No reports from any welding inspection agency shall be accepted unless each agency hasfirst requested and obtained qualifications from the office in accordance with rule 16-1 ofthe Board of Standards and Appeals welding rule.

D. Brazing: Before proceeding, submit the following for review and approval;1. Proposal procedure conforming to latest revision of:

a. Section IX, ASME boiler and pressure vessel code, welding and brazing qualifications.b. ANSI/AWS B2.2 Standard for Brazing Procedure and Performance Qualification

2. List of brazers qualified per section IX of ASME. Boiler and Pressure Vessel Codeincluding, but not limited to, the following information:a. Brazer’s nameb. Brazer’s Social Security Numberc. Employer’s named. Name of testing laboratorye. Procedure tested for including, but not limited to, the following:

1) Date of test2) Wall thickness



3) Base metal material4) Brazing filler material5) Position6) Type of test performed7) Result of test8) Brazer’s identification symbol9) Sample of each identification device10) Certify that each Brazer has either worked in the procedure or successfully

tested in the procedure within the past six months11) BPQ12) PQR13) BPS

1.05 QUALITY ASSURANCEA. Steel Support Welding: Qualify processes and operators according to AWS D1.1, "Structural

Welding Code--Steel."B. Steel Pipe Welding: Qualify processes and operators according to ASME Boiler and Pressure

Vessel Code: Section IX, "Welding and Brazing Qualifications."1. Comply with provisions in ASME B31 Series, "Code for Pressure Piping."2. Certify that each welder has passed AWS qualification tests for welding processes

involved and that certification is current.C. Electrical Characteristics for HVAC Equipment: Equipment of higher electrical characteristics

may be furnished provided such proposed equipment is approved in writing and connectingelectrical services, circuit breakers, and conduit sizes are appropriately modified. If minimumenergy ratings or efficiencies are specified, equipment shall comply with requirements.

1.06 DELIVERY, STORAGE, AND HANDLINGA. 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, andmoisture.

B. Store plastic pipes protected from direct sunlight. Support to prevent sagging and bending.1.07 COORDINATION

A. Arrange for pipe spaces, chases, slots, and openings in building structure during progress ofconstruction, to allow for HVAC installations.

B. Coordinate installation of required supporting devices and set sleeves in poured-in-placeconcrete and other structural components as they are constructed.

C. Coordinate requirements for access panels and doors for HVAC items requiring access that areconcealed behind finished surfaces. Access panels and doors are specified in Division 08Section "Access Doors and Frames."

PART 2 PRODUCTS2.01 MANUFACTURERS

A. In other Part 2 articles where subparagraph titles below introduce lists, the followingrequirements apply for product selection:1. Available Manufacturers: Subject to compliance with requirements, manufacturers offering

products that may be incorporated into the Work include, but are not limited to, themanufacturers specified.

2.02 PIPE, TUBE, AND FITTINGSA. Refer to individual Division 23 piping Sections for pipe, tube, and fitting materials and joining

methods.B. Pipe Threads: ASME B1.20.1 for factory-threaded pipe and pipe fittings.



2.03 JOINING MATERIALSA. 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 (3.2-mm) 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 (3.2 mm) thick, unless otherwise indicated; andfull-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.

G. Welding Filler Metals: Comply with AWS D10.12 for welding materials appropriate for wallthickness and chemical analysis of steel pipe being welded.

2.04 DIELECTRIC FITTINGSA. Description: Combination fitting of copper alloy and ferrous materials with threaded,

solder-joint, 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 Flanges: Factory-fabricated, companion-flange assembly, for 150- or 300-psig minimum working pressure as required to suit system pressures.1. Manufacturers:

a. Capitol Manufacturing Co.b. Central Plastics Company.c. Epco Sales, Inc.d. Watts Industries, Inc.; Water Products Div.

E. Dielectric-Flange Kits: Companion-flange assembly for field assembly. Include flanges,full-face- or ring-type neoprene or phenolic gasket, phenolic or polyethylene bolt sleeves,phenolic washers, and steel backing washers.1. Manufacturers:

a. Advance Products & Systems, Inc.b. Calpico, Inc.c. Central Plastics Company.d. Pipeline Seal and Insulator, Inc.



2. Separate companion flanges and steel bolts and nuts shall have 150- or 300-psigminimum working pressure where required to suit system pressures.

F. Dielectric Couplings: Galvanized-steel coupling with inert and noncorrosive, thermoplasticlining; threaded ends; and 300-psig minimum working pressure at 225 deg F.1. Manufacturers:

a. Calpico, Inc.b. Lochinvar Corp.

PART 3 EXECUTION3.01 WORKMANSHIP

A. All HVAC work performed as part of this contract shall be in accordance with prevailing codesand in keeping with best trade practices by experienced, proven and licensed (where applicable)installers.

3.02 HVAC DEMOLITIONA. Refer to Division 01 Section "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. Equipment to Be Removed and Reinstalled: Disconnect and cap services and remove,

clean, and store equipment; when appropriate, reinstall, reconnect, and make equipmentoperational.

2. 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 equalcapacity and quality.

C. SPECIFIC DEMOLITION SCOPE OF WORK1. This contractor shall visit the site and adjoining areas and examine the existing conditions

to become familiar with them and to determine the difficulties which will affect theexecution of the work of this contract. This contractor shall perform this prior to thesubmission of his proposal. Submission of a proposal will be construed as evidence thatsuch an examination has been made and later claims will not be recognized for extralabor, equipment or materials required because of difficulties encountered which couldhave been foreseen had such an examination been made.

2. The demolition work shall include, providing all materials, all necessary extensions,connections, cutting, repairing, adapting and other mechanical work required, together withany required temporary connections to maintain service pending the completion of thepermanent work. Notes and graphic representation shall not limit the extent of demolitionrequired. Extent of demolition work shall be coordinated with the Architect and Owner.

3. Refer to Narrative for scope of demolition work.4. Contractor shall identify all existing work to remain by acceptable identification means to

confirm proper scope prior to commencement of demolition.3.03 PIPING SYSTEMS - COMMON REQUIREMENTS

A. Install piping according to the following requirements and Division 23 Sections specifying pipingsystems.

B. Install piping in concealed locations, unless otherwise indicated and except in equipment roomsand service areas.

C. Install piping indicated to be exposed and piping in equipment rooms and service areas at rightangles or parallel to building walls. Diagonal runs are prohibited unless specifically indicatedotherwise.

D. Install piping above accessible ceilings to allow sufficient space for ceiling panel removal.E. Install piping to permit valve servicing.F. Install piping at indicated slopes.



G. Install piping free of sags and bends.H. Install fittings for changes in direction and branch connections.I. Install piping to allow application of insulation.J. Select system components with pressure rating equal to or greater than system operating

pressure.K. Aboveground, Exterior-Wall Pipe Penetrations: Seal penetrations using sleeves and

mechanical sleeve seals. Select sleeve size to allow for 1-inch annular clear space betweenpipe and sleeve for installing mechanical sleeve seals.1. Install steel pipe for sleeves smaller than 6 inches in diameter.2. Install cast-iron "wall pipes" for sleeves 6 inches and larger in diameter.3. Mechanical Sleeve Seal Installation: Select type and number of sealing elements required

for pipe material and size. Position pipe in center of sleeve. Assemble mechanical sleeveseals and install in annular space between pipe and sleeve. Tighten bolts againstpressure plates that cause sealing elements to expand and make watertight seal.

L. Underground, Exterior-Wall Pipe Penetrations: Install cast-iron "wall pipes" for sleeves. Sealpipe penetrations using mechanical sleeve seals. Select sleeve size to allow for 1-inch (25-mm)annular clear space between pipe and sleeve for installing mechanical sleeve seals.1. Mechanical Sleeve Seal Installation: Select type and number of sealing elements required

for pipe material and size. Position pipe in center of sleeve. Assemble mechanical sleeveseals and install in annular space between pipe and sleeve. Tighten bolts againstpressure plates that cause sealing elements to expand and make watertight seal.

M. Fire-Barrier Penetrations: Maintain indicated fire rating of walls, partitions, ceilings, and floors atpipe penetrations. Seal pipe penetrations with firestop materials.

N. Verify final equipment locations for roughing-in.O. Refer to equipment specifications in other Sections of these Specifications for roughing-in

requirements.3.04 PIPING JOINT CONSTRUCTION

A. Join pipe and fittings according to the following requirements and Division 23 Sectionsspecifying 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," usinglead-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 B1.20.1. Cutthreads full and clean using sharp dies. Ream threaded pipe ends to remove burrs and restorefull 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

damaged. Do not use pipe sections that have cracked or open welds.3. Threaded fittings not allowed in glycol system.

G. Welded Joints: Construct joints according to AWS D10.12, using qualified processes andwelding operators according to Part 1 "Quality Assurance" Article.

H. Flanged Joints: Select appropriate gasket material, size, type, and thickness for serviceapplication. Install gasket concentrically positioned. Use suitable lubricants on bolt threads.



3.05 PIPING CONNECTIONSA. 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 connectionto each piece of equipment.

2. Install flanges, in piping NPS 2-1/2 and larger, adjacent to flanged valves and at finalconnection to each piece of equipment.

3. Dry Piping Systems: Install dielectric unions and flanges to connect piping materials ofdissimilar metals.

4. Wet Piping Systems: Install dielectric coupling and nipple fittings to connect pipingmaterials of dissimilar metals.

3.06 DUCT SYSTEMS – COMMON REQUIREMENTSA. Install ductwork according to the following requirements and Division 23 Sections specifying

metal ducts, casings, duct accessories and related components.B. Drawing plans, schematics and diagram indicate general location and arrangement of duct

systems. Indicated locations and arrangements were used to size ducts and calculate frictionloss, expansion, fan sizing and other design considerations. Install ductwork as indicatedunless deviations to layout are approved on Coordination Drawings.

C. Install ductwork in concealed locations, unless otherwise indicated and except in equipmentrooms and service areas.

D. Install ductwork indicated to be exposed and ductwork in equipment rooms and service areas atright angles or parallel to building walls. Diagonal runs are prohibited unless specificallyindicated otherwise.

E. Install ductwork above accessible ceilings to allow sufficient space for ceiling panel removal.F. Provide internal duct liner for 10 feet before and after fan coils. Provide metal nosing on all

leading edges.G. Install ductwork to permit servicing of dampers, actuators, filters, and as required.H. Install with indicated horizontal and vertical offset.I. Install ductwork free of sags and bends.J. Install fittings for changes in direction and branch connections.K. Install ductwork to allow application of insulation.L. Select system components with pressure class equal to or greater than system operating

pressure.3.07 EQUIPMENT INSTALLATION - COMMON REQUIREMENTS

A. Install equipment to allow maximum possible headroom unless specific mounting heights arenot indicated.

B. Install equipment level and plumb, parallel and perpendicular to other building systems andcomponents in exposed interior spaces, unless otherwise indicated.

C. Install HVAC equipment to facilitate service, maintenance, and repair or replacement ofcomponents. Connect equipment for ease of disconnecting, with minimum interference to otherinstallations. Extend grease fittings to accessible locations.

D. Install equipment to allow right of way for piping installed at required slope.END OF SECTION


23 05 13- 1 COMMON MOTOR REQUIREMENTS FOR HVAC EQUIPMENT

SECTION 23 05 13COMMON MOTOR REQUIREMENTS FOR HVAC EQUIPMENT

PART 1 GENERAL1.01 SUBMITTALS

A. Product Data: Provide wiring diagrams with electrical characteristics and connectionrequirements.

1.02 QUALITY ASSURANCEA. Comply with NFPA 70.B. Products Requiring Electrical Connection: Listed and classified by Underwriters Laboratories

Inc. as suitable for the purpose specified and indicated.1.03 WARRANTY

A. See Section 01 78 00 - Closeout Submittals for additional warranty requirements.PART 2 PRODUCTS2.01 GENERAL CONSTRUCTION AND REQUIREMENTS

A. Electrical Service:1. Motors 1/2 HP and Smaller: 115 volts, single phase, 60 Hz.2. Motors Larger than 1/2 Horsepower: 208 volts, three phase, 60 Hz.

B. Nominal Efficiency:1. Open Motor with Two Poles: 82.5.2. Open Motor with Four Poles: 82.5.3. Open Motor with Six Poles: 50.0.4. Enclosed Motor with Two Poles: 75.5.5. Enclosed Motor with Four Poles: 82.5.6. Enclosed Motor with Six Poles: 50.0.

C. Construction:1. Open drip-proof type except where specifically noted otherwise.2. Design for continuous operation in 104 degrees F environment.3. Design for temperature rise in accordance with NEMA MG 1 limits for insulation class,

service factor, and motor enclosure type.D. Visible Nameplate: Indicating motor horsepower, voltage, phase, cycles, RPM, full load amps,

locked rotor amps, frame size, manufacturer's name and model number, service factor, powerfactor, efficiency.

E. Wiring Terminations:1. Provide terminal lugs to match branch circuit conductor quantities, sizes, and materials

indicated. Enclose terminal lugs in terminal box sized to NFPA 70, threaded for conduit.2. For fractional horsepower motors where connection is made directly, provide threaded

conduit connection in end frame.2.02 APPLICATIONS

A. Exception: Motors less than 250 watts, for intermittent service may be the equipmentmanufacturer's standard and need not comply with these specifications.

B. Single phase motors for fans: Capacitor start, capacitor run type.2.03 SINGLE PHASE POWER - CAPACITOR START MOTORS

A. Starting Torque: Three times full load torque.B. Starting Current: Less than five times full load current.C. Pull-up Torque: Up to 350 percent of full load torque.

2.04 THREE PHASE POWER - SQUIRREL CAGE MOTORSA. Starting Torque: Between 1 and 1-1/2 times full load torque.


23 05 13- 2 COMMON MOTOR REQUIREMENTS FOR HVAC EQUIPMENT

B. Starting Current: Six times full load current.C. Power Output, Locked Rotor Torque, Breakdown or Pull Out Torque: NEMA Design B

characteristics.D. Design, Construction, Testing, and Performance: Comply with NEMA MG 1 for Design B

motors.E. Insulation System: NEMA Class B or better.F. Testing Procedure: In accordance with IEEE 112. Load test motors to determine free from

electrical or mechanical defects in compliance with performance data.G. Motor Frames: NEMA Standard T-Frames of steel, aluminum, or cast iron with end brackets of

cast iron or aluminum with steel inserts.H. Thermistor System (Motor Frame Sizes 254T and Larger): Three PTC thermistors embedded

in motor windings and epoxy encapsulated solid state control relay for wiring into motor starter;refer to Section 26 29 13.

I. Bearings: Grease lubricated anti-friction ball bearings with housings equipped with pluggedprovision for relubrication, rated for minimum ABMA STD 9, L-10 life of 20,000 hours. Calculatebearing load with NEMA minimum V-belt pulley with belt center line at end of NEMA standardshaft extension. Stamp bearing sizes on nameplate.

J. Weatherproof Epoxy Sealed Motors: Epoxy seal windings using vacuum and pressure withrotor and starter surfaces protected with epoxy enamel; bearings double shielded withwaterproof non-washing grease.

K. Nominal Efficiency: As indicated at full load and rated voltage when tested in accordance withIEEE 112.

L. Nominal Power Factor: As indicated at full load and rated voltage when tested in accordancewith IEEE 112.

PART 3 EXECUTION3.01 INSTALLATION

A. Install in accordance with manufacturer's instructions.B. Install securely on firm foundation. Mount ball bearing motors with shaft in any position.C. Check line voltage and phase and ensure agreement with nameplate.

END OF SECTION

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23 05 93- 1 TESTING, ADJUSTING, AND BALANCING FOR HVAC

SECTION 23 05 93TESTING, ADJUSTING, AND BALANCING FOR HVAC

PART 1 - GENERAL1.01 TESTING AND BALANCING

A. Procure the service of an independent Testing and Balancing Agency that specializes in thetesting and balancing of heating, ventilating and air conditioning systems.

B. Both the air and water systems shall be done by the same agency.C. Work shall not begin until the agency has been notified in writing that all systems have been

completed, cleaned and placed in full working sequence by this contractor. Clean filters shall beinstalled by this contractor prior to start of balancing work.

D. Test, balance and adjust all air moving equipment, terminals, supply, return and exhaustsystems. Work together with the ATC Contractor to adjust setpoints of out-side/return/exhaustdampers where applicable.

E. Test, balance and adjust all water systems to provide scheduled flows to all terminals andeliminate noise.

F. Test, balance and adjust the domestic hot water recirc. system to provide scheduled flows to allterminals shown on the plumbing drawings.

G. When all control systems and preliminary testing and balancing are complete, this contractor,with the cooperation of the ATC Contractor, shall perform an independent test of all systems forspecified sequences of operation. Refer to DIVISION 25.1. The test shall include all operations as specified in DIVISION 25, “Sequences of

Operation”.2. All dampers, valves, and similar appurtenances shall be visually or physically confirmed to

operate as specified. Operating and safety devices such as aquastats and freezestatsshall be verified operational.

3. All interlocks between equipment shall be confirmed to operate as specified.4. This contractor shall provide the ATC Contractor with operating setpoints as well as alarm

setpoints such as dirty filters, high/low limits, etc., as required.5. Report findings per K. below.

H. Perform all tests in accordance with standard procedures such as those outlined by theAssociated Air Balance Council (AABC) and/or Sheet Metal and Air Conditioning ContractorsNational Association, Inc., (SMACNA).

I. At completion of all testing and balancing, leave all equipment systems, components, etc.,adjusted within the limits of installed equipment and to within 10% of design requirements. Mark all setpoints of all dampers and valves with distinguishing marks. If requested, conducttests in the presence of the Owner’s representative.

J. Within 15 days after completion of testing and balancing, submit for review six (6) copies of thetesting and balancing results on industry recognized forms. Include a warranty period of 90days during which time the Owner’s representative may request recheck or re-adjustment ofany part of the job.

K. All reports shall clearly indicate the following minimum information:1. Air - System name, rated and actual HP, BHP, motor nameplate efficiency, voltage,

amperage, fan rpm, suction, discharge and total static pressures, total system flow rate,individual terminal flow rates. Terminal readings must show location, make, model andsize of register, grille, or diffuser. Include a static pressure profile of all AHU’scomponents.

2. Water - Pump full flow and no-flow suction and discharge pressures, rated and actualamperage, HP, BHP, motor nameplate efficiency, voltage and total dynamic head. Calibrated balancing device readings shall indicate location, size, setting, differentialpressure, and rated and actual GPM. Where applicable, 50% of the total automaticbalancing valves installed shall be tested to verify proper function, and reported on. All air


23 05 93- 2 TESTING, ADJUSTING, AND BALANCING FOR HVAC

handling unit coils and any other critical equipment shall be included in the 50% tested. Review details with the project engineer prior to conducting the work.

3. ATC Sequence Check: Report shall include a paragraph-by-paragraph review of thesequence of controls specification, noting either “operates as specified”, or detailing anydeviations or deficiencies.

L. Should the HVAC systems be found incomplete or not performing per specification, the ATCContractor shall correct deficiencies and the Testing and Balancing Subcontractor shall recheckuntil all sequences have been verified proper.

END OF SECTION


23 07 19- 1 HVAC PIPING INSULATION

SECTION 23 07 19HVAC PIPING INSULATION


A. Product Data: Provide product description, thermal characteristics, list of materials andthickness for each service, and locations.

PART 2 PRODUCTS2.01 REGULATORY REQUIREMENTS

A. Surface Burning Characteristics: Flame spread index/Smoke developed index of 25/50,maximum, when tested in accordance with ASTM E84 or UL 723.

2.02 GLASS FIBERA. Insulation: ASTM C547 and ASTM C795; rigid molded, noncombustible, with wicking material

to transport condensed water to the outside of the system for evaporation to the atmosphere.1. 'K' Value: ASTM C177, 0.23 at 75 degrees F.2. Maximum Service Temperature: 220 degrees F.3. Maximum Moisture Absorption: 0.2 percent by volume.

B. Vapor Barrier Jacket: White kraft paper with glass fiber yarn, bonded to aluminized film;moisture vapor transmission when tested in accordance with ASTM E96/E96M of 0.02perm-inches.

C. Vapor Barrier Lap Adhesive: Compatible with insulation.D. Insulating Cement/Mastic: ASTM C195; hydraulic setting on mineral wool.E. Fibrous Glass Fabric:

1. Cloth: Untreated; 9 oz/sq yd weight.2. Blanket: 1.0 lb/cu ft density.3. Weave: 5 by 5.

F. Indoor Vapor Barrier Finish:1. Cloth: Untreated; 9 oz/sq yd weight.2. Vinyl emulsion type acrylic, compatible with insulation, black color.

G. Outdoor Vapor Barrier Mastic: Vinyl emulsion type acrylic or mastic, compatible with insulation,black color.

H. Outdoor Breather Mastic: Vinyl emulsion type acrylic or mastic, compatible with insulation,black color.

I. Insulating Cement: ASTM C449.2.03 FLEXIBLE ELASTOMERIC CELLULAR INSULATION

A. Insulation: Preformed flexible elastomeric cellular rubber insulation complying with ASTMC534/C534M Grade 1; use molded tubular material wherever possible.1. Minimum Service Temperature: Minus 40 degrees F.2. Maximum Service Temperature: 180 degrees F.3. Connection: Waterproof vapor barrier adhesive.

B. Elastomeric Foam Adhesive: Air dried, contact adhesive, compatible with insulation.2.04 JACKETS

A. PVC Plastic.1. Jacket: One piece molded type fitting covers and sheet material, off-white color.

a. Minimum Service Temperature: 0 degrees F.b. Maximum Service Temperature: 150 degrees F.c. Moisture Vapor Permeability: 0.002 perm inch, maximum, when tested in accordance

with ASTM E96/E96M.d. Thickness: 10 mil.

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23 07 19- 2 HVAC PIPING INSULATION

e. Connections: Brush on welding adhesive.2. Covering Adhesive Mastic: Compatible with insulation.

B. Aluminum Jacket: ASTM B209 (ASTM B209M) formed aluminum sheet.1. Thickness: 0.016 inch sheet.2. Finish: Smooth.3. Joining: Longitudinal slip joints and 2 inch laps.4. Fittings: 0.016 inch thick die shaped fitting covers with factory attached protective liner.5. Metal Jacket Bands: 3/8 inch wide; 0.015 inch thick aluminum.

2.05 ENGINEERED WALL OUTLET SEALS AND REFRIGERANT PIPING INSULATIONPROTECTIONA. Pipe Penetration Wall Seal: Seals HVAC piping wall penetrations with compression gasket wall

mounted rigid plastic outlet cover.1. Wall Outlet Size, Siding and Compact Applications: 6-7/8 inch wide by 3-7/8 inch high.2. Outlet Cover Color: Gray.3. Water Penetration: Comply with ASTM E331.4. Air Leakage: Comply with ASTM E283.5. Air Permeance: Comply with ASTM E2178.

B. Insulation Protection System: Refrigerant piping insulation PVC protective cover.1. PVC Insulation Cover Color: Black with full-length velcro fastener.2. Weatherization and Ultraviolet Exposure Protection: Comply with ASTM G153.3. Water/Vapor Permeability: Comply with ASTM E96/E96M.4. Anti-Fungal and Anti-Microbial Resistance: Comply with ASTM G21.5. Flame Spread and Smoke Development Rating of 24/450: Comply with ASTM E84 or UL

723.6. Carbon Arc Light Exposure: Comply with ASTM G153.7. Tensile Strength After UV Exposure and Water Immersion: Comply with ASTM D412.8. Water Absorption of Plastics: Comply with ASTM D570.9. Adhesive free.


A. Install in accordance with NAIMA National Insulation Standards.3.02 SCHEDULE

A. Refrigerant Piping:1. Provide with manufacturer insulated linesets. All exterior piping shall be provided with

insulation UV protection.END OF SECTION








































23 08 00- 1 COMMISSIONING OF HVAC

SECTION 23 08 00COMMISSIONING OF HVAC

PART 1 - GENERAL1.01 COMMISSIONING OF SYSTEM(S)

A. The Mechanical Contractor shall be responsible for self-commissioning the installed HVACsystem(s) and demonstrating proper operation and functions at conclusion of the contract.

1.02 PRESSURE TESTSA. All piping shall be pressure tested before being covered or concealed. This contractor shall

provide all equipment necessary for said test. All tests shall be recorded on a log sheet, notingpiping section tested, initial and final pressures, duration of test and date of test.

B. All tests shall be made in the presence of and to the satisfaction of the Owner's representative. Provide a copy of all test log sheets to the Owner’s representative upon completion of testing.

C. The piping systems may be tested in sections as the work progresses, but no joint or portion ofthe system shall be left untested.

D. All elements within the system that may be damaged by the testing operation shall be removedor other wise protected during the operation.

E. All defects and leaks observed during the tests shall be corrected and made tight in anapproved manner and the tests repeated until the system is proven tight.

F. Repair all damage done to existing or adjacent work or materials due to or on account of thetests.

G. All pressure piping shall be tested hydrostatically at a pres-sure of at least 1½ times themaximum op-erating pressure, but not less than 80 psi, for a two (2) hour duration with no dropin pressure.

H. Test radiant floor PEX tubing in strict accordance with the manufacturer’s published instructionsand recommendations.

1.03 SYSTEMS FLUSHINGA. For the hot water system, extreme caution shall be exercised by contractor to prevent dirt and

other foreign matter from entering pipes or components of system during construction. Pipestored on project shall have open ends capped and equipment shall have all openings fullyprotected. Before erection, each piece of pipe, fitting or valve shall be visually examined and alldirt removed.

B. With the system filled with clean water, circulation established and trapped air vented, the boilerand geothermal plants shall be energized. Any leaks in piping shall be repaired beforeproceeding with further test procedures. Low point drains in the system shall be opened forinitial flush and blowdown, with water fill valves set to make up water at an equal rate. Checkpressure gauge at pump suction and manually adjust make-up water to maintain steady positivepressure before and after opening drain valves. Flushing shall continue until clean water isevident leaving open drains. In no case shall the flushing period be less than two hours. Uponcompletion of flushing, all strainers shall be removed, cleaned and reinstalled.

C. After initial system flushing, chemically clean the hot water piping system in accordance withbest trade practices and recommendations offered by the Owner’s water treatment contractor.

D. After said cleaning procedure, the systems shall then be drained completely and refilled withfresh water.

E. After systems have been completely cleaned, they shall be tested by an independent agencyand left on the slightly alkaline side (pH 7.5). If systems are still on the acid side, cleaning byuse of trisodium phosphate shall be repeated. Submit certified test results to the Owner’srepresentative for record.

F. Inhibitors shall be introduced to the hot water piping system as specified hereinafter and/or asdirected by the Owner’s water treatment contractor.


23 08 00- 2 COMMISSIONING OF HVAC

1.04 AUTOMATIC TEMPERATURE CONTROLS SEQUENCE CHECKA. This contractor shall be responsible for the scheduling and coordination of subcontractors,

specifically the Testing and Balancing Subcontractor, for the performance of an controlsequence check on all HVAC systems described in DIVISION 23, “Sequences of Operation”.

B. Control installation and preliminary testing and balancing shall be complete prior to thescheduling of the sequence check.

C. This contractor shall notify the engineer 48 hours prior to the scheduled performance of thesequence check.

END OF SECTION


23 23 00- 1 REFRIGERANT PIPING

SECTION 23 23 00REFRIGERANT PIPING


A. Product Data: Provide general assembly of specialties, including manufacturers catalogueinformation. Provide manufacturers catalog data including load capacity.

B. Shop Drawings: Indicate schematic layout of system, including equipment, critical dimensions,and sizes.

PART 2 PRODUCTS2.01 REGULATORY REQUIREMENTS

A. Comply with ASME B31.9 for installation of piping system.B. Welding Materials and Procedures: Comply with ASME BPVC-IX and applicable state labor

regulations.C. Welders Certification: In accordance with ASME BPVC-IX.D. Products Requiring Electrical Connection: Listed and classified by UL, as suitable for the

purpose indicated.2.02 PIPING

A. Copper Tube: ASTM B280, H58 hard drawn or O60 soft annealed.1. Fittings: ASME B16.22 wrought copper.2. Joints: Braze, AWS A5.8M/A5.8 BCuP silver/phosphorus/copper alloy.

B. Pipe Supports and Anchors:1. Provide hangers and supports that comply with MSS SP-58.

a. If type of hanger or support for a particular situation is not indicated, selectappropriate type using MSS SP-58 recommendations.

2. Hangers for Pipe Sizes 1/2 to 1-1/2 Inch: Malleable iron adjustable swivel, split ring.3. Multiple or Trapeze Hangers: Steel channels with welded spacers and hanger rods.4. Wall Support for Pipe Sizes to 3 Inches: Cast iron hook.5. Vertical Support: Steel riser clamp.6. Copper Pipe Support: Carbon steel ring, adjustable, copper plated.7. Hanger Rods: Mild steel threaded both ends, threaded one end, or continuous threaded.8. Inserts: Malleable iron case of galvanized steel shell and expander plug for threaded

connection with lateral adjustment, top slot for reinforcing rods, lugs for attaching to forms;size inserts to suit threaded hanger rods.

2.03 VALVESA. Diaphragm Packless Valves:

1. UL listed, globe or angle pattern, forged brass body and bonnet, phosphor bronze andstainless steel diaphragms, rising stem and handwheel, stainless steel spring, nylon seatdisc, solder or flared ends, with positive backseating; for maximum working pressure of500 psi and maximum temperature of 275 degrees F.

B. Packed Angle Valves:1. Forged brass or nickel plated forged steel, forged brass seal caps with copper gasket,

rising stem and seat with backseating, molded stem packing, solder or flared ends; formaximum working pressure of 500 psi and maximum temperature of 275 degrees F.

C. Ball Valves:1. Two piece bolted forged brass body with teflon ball seals and copper tube extensions,

brass bonnet and seal cap, chrome plated ball, stem with neoprene ring stem seals; formaximum working pressure of 500 psi and maximum temperature of 300 degrees F.

D. Service Valves:



1. Forged brass body with copper stubs, brass caps, removable valve core, integral ballcheck valve, flared or solder ends, for maximum pressure of 500 psi.

2.04 CHECK VALVESA. Globe Type:

1. Cast bronze or forged brass body, forged brass cap with neoprene seal, brass guide anddisc holder, phosphor-bronze or stainless steel spring, teflon seat disc; for maximumtemperature of 300 degrees F and maximum working pressure of 425 psi.

B. Straight Through Type:1. Brass body and disc, phosphor-bronze or stainless steel spring, neoprene seat; for

maximum working pressure of 500 psi and maximum temperature of 200 degrees F.2.05 PRESSURE RELIEF VALVES

A. Straight Through or Angle Type: Brass body and disc, neoprene seat, factory sealed andstamped with ASME UV and National Board Certification NB, selected to ASHRAE Std 15, withstandard setting of 235 psi.

2.06 SOLENOID VALVESA. Valve: AHRI 760 I-P, pilot operated, copper, brass or steel body and internal parts, synthetic

seat, stainless steel stem and plunger assembly (permitting manual operation in case of coilfailure), integral strainer, with flared, solder, or threaded ends; for maximum working pressure of500 psi.

B. Coil Assembly: UL 429, UL listed, replaceable with molded electromagnetic coil, moisture andfungus proof, with surge protector and color coded lead wires, integral junction box with pilotlight.

2.07 EXPANSION VALVESA. Angle or Straight Through Type: AHRI 750; design suitable for refrigerant, brass body, internal

or external equalizer, bleed hole, adjustable superheat setting, replaceable inlet strainer, withnon-replaceable capillary tube and remote sensing bulb and remote bulb well.

B. Selection: Evaluate refrigerant pressure drop through system to determine available pressuredrop across valve. Select valve for maximum load at design operating pressure and minimum10 degrees F superheat. Select to avoid being undersized at full load and excessivelyoversized at part load.

2.08 ENGINEERED WALL SEALS AND INSULATION PROTECTIONA. Pipe Penetration Wall Seal: Seals HVAC piping wall penetrations with compression gasket wall

mounted rigid plastic outlet cover.1. Wall Outlet Size, Siding and Compact Applications: 6-7/8 inch wide by 3-7/8 inch high.2. Outlet Cover Color: Gray.3. Water Penetration: Comply with ASTM E331.4. Air Leakage: Comply with ASTM E283.5. Air Permeance: Comply with ASTM E2178.

B. Insulation Protection System: Mechanical line insulation and PVC cover.1. PVC Insulation Cover Color: Black with full-length velcro fastener.2. Weatherization and Ultraviolet Exposure Protection: Comply with ASTM G153.3. Water/Vapor Permeability: Comply with ASTM E96/E96M.4. Anti-Fungal and Anti-Microbial Resistance: Comply with ASTM G21.5. Flame Spread and Smoke Development Rating of 25/450: Comply with ASTM E84.6. Adhesive free.


A. Install piping to allow for expansion and contraction without stressing pipe, joints, or connectedequipment.



B. Pipe Hangers and Supports:1. Install in accordance with ASME B31.5.

END OF SECTION


23 62 13- 1 PACKAGED AIR-COOLED REFRIGERANT COMPRESSOR ANDCONDENSER UNITS

SECTION 23 62 13PACKAGED AIR-COOLED REFRIGERANT COMPRESSOR AND CONDENSER UNITS


A. Product Data: Provide rated capacities, weights specialties and accessories, electricalnameplate data, and wiring diagrams. Include equipment served by condensing units insubmittal, or submit at same time, to ensure capacities are complementary.

B. Shop Drawings: Indicate components, assembly, dimensions, weights and loadings, requiredclearances, and location and size of field connections. Include schematic layouts showingcondensing units, cooling coils, refrigerant piping, and accessories required for completesystem.

1.02 WARRANTYA. Provide a five year warranty to include coverage for refrigerant compressors.

PART 2 PRODUCTS2.01 MANUFACTURED UNITS

A. Units: Self-contained, packaged, factory assembled and pre-wired units suitable for outdooruse consisting of cabinet, compressors, condensing coil and fans, integral sub-cooling coil,controls, liquid receiver, wind deflector, and screens.

B. Construction and Ratings: In accordance with AHRI 210/240. Test in accordance withASHRAE Std 23.1.

C. Performance Ratings: Energy Efficiency Rating (EER) and Coefficient of Performance (COP)not less than prescribed by ASHRAE Std 90.1 I-P.

D. Refrigerant: R-410A2.02 CASING

A. House components in welded steel frame with galvanized steel panels with weather resistant,baked enamel finish.

2.03 CONDENSER COILSA. Coils: Aluminum fins mechanically bonded to seamless copper tubing. Provide sub-cooling

circuits. Air test under water to 425 psig, and vacuum dehydrate. Seal with holding charge ofnitrogen.

2.04 FANS AND MOTORSA. Vertical discharge direct driven propeller type condenser fans with fan guard on discharge.

Equip with roller or ball bearings with grease fittings extended to outside of casing.B. Weatherproof motors suitable for outdoor use, single phase permanent split capacitor or 3

phase, with permanent lubricated ball bearings and built in current and thermal overloadprotection. Refer to Section 23 05 13.

2.05 COMPRESSORSA. Compressor: Semi-hermetic reciprocating type.B. Mounting: Statically and dynamically balance rotating parts and mount on spring vibration

isolators.1. Internally isolate hermetic units on springs.

C. Lubrication System: Reversible, positive displacement oil pump with oil charging valve, oil levelsight glass, and magnetic plug or strainer.

2.06 REFRIGERANT CIRCUITA. Provide each unit with one refrigerant circuit, factory supplied and piped. Refer to Section 23 23

00.

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23 62 13- 2 PACKAGED AIR-COOLED REFRIGERANT COMPRESSOR ANDCONDENSER UNITS


A. Provide connection to refrigeration piping system and evaporators. Refer to Section 23 23 00. Comply with ASHRAE Std 15.

END OF SECTION










23 82 00- 1 CONVECTION HEATING AND COOLING UNITS

SECTION 23 82 00CONVECTION HEATING AND COOLING UNITS


A. Product Data: Provide typical catalog of information including arrangements.B. Project Record Documents: Record actual locations of components and locations of access

doors in radiation cabinets required for access or valving.PART 2 PRODUCTS2.01 AIR COILS

A. Water Coils:1. Coils rated and tested in accordance with AHRI 410.2. Tubes: Material to consist of seamless copper or brass, mechanically expanded or

tension wound to fins; appropriate tube joining methods based on tube material.3. Fins: Material to consist of aluminum or copper, continuous plate type with full fin collars

or individual helical finned tube type wound under tension.4. Casing: Heavy gage galvanized steel with mounting holes, including intermediate tube

supports if required by coil design and length.5. Headers (Manifolds): Construct of seamless copper pipe, cast iron, or nonferrous material

with tube connection appropriate to header material provided.6. Acceptable Factory Testing Methods:

a. Proof test at 1.5 times the maximum operating pressure and leak test at themaximum operating temperature.

B. Refrigerant Coils:1. Coils rated and tested in accordance with AHRI 410.2. Tubes: Material to consist of seamless copper or brass, mechanically expanded or

tension wound to fins; appropriate tube joining methods based on tube material.3. Fins: Material to consist of aluminum or copper, continuous plate type with full fin collars

or individual helical finned tube type wound under tension.4. Casing: Heavy gage, galvanized steel with mounting holes, including intermediate tube

supports if required by coil design and length.5. Suction Header: Construct of nonferrous material with tube connection appropriate to

header material provided.6. Liquid distributor: Brass or copper venture type with seamless copper distribution tubes;

maximum 12 or 18 circuits per distributor.7. Configuration: Down feed with bottom suction to prevent oil trapping.8. Acceptable Factory Testing Methods:

a. Proof test at 1.5 times the maximum operating pressure and leak test at themaximum operating temperature.

b. Leak test at minimum 300 psig air pressure under water.PART 3 EXECUTION3.01 INSTALLATION

A. Install in accordance with manufacturer's recommendations.END OF SECTION