USDA ARS Athens GA Upgrade Chiller - Final Turnover Specifications 03-01-21.pdf

Response to:

Study; 60, NIH Bethesda Contract No.: HHSN29201100004I Work Request No.: HQC11427

Submitted to:

National Institutes of Health

Due: July 27, 2011 Time: 12:00 Noon

Submission:

Specifications Final Turnover Submission (Revised) Repair and Replacement, Building

Project:

Upgrade Chillers RRC Building

USDA - ARS

Richard B. Russell Agricultural Research Center (RRC) 950 College Station Road

ATHENS, GA 30605

Project No.: #12405B20Q0052 / GES #F20-043

Presented to:

Date:

March 01, 2021 www.THEGES.com

Engineering Program Management Construction Management

Healthcare CommercialScience & Technology Education

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U.S. DEPARTEMENT OF AGRICULTURE (USDA) - AGRICULTURE RESEARCH SERVICE (ARS)

UPGRADE CHILLER, ATHENS GA

RICHARD B. RUSSELL AGRICULTURAL RESEARCH CENTER (RRC)

SPECIFICATIONS - TABLE OF CONTENTS

DIVISION 23 – MECHANICAL

230500 Common Work Results for HVAC

230519 Meters and Gauges for HVAC Piping

230523 General-Duty Valves for HVAC Piping

230529 Hangers and Supports for HVAC Piping and Equipment

230553 Identification for HVAC Piping and Equipment

230593 Testing, Adjusting, and Balancing for HVAC

230716 HVAC Equipment Insulation

230719 HVAC Piping Insulation

232113 Hydronic Piping

232116 Hydronic Piping Specialties

232123 Hydronic Pumps

236416 Centrifugal Water Chillers

236513 Cooling Towers

DIVISION 26 – ELECTRICAL

260510 General Electrical Requirements

260519 Low-Voltage Electrical Power Conductors and Cables

260529 Hangers and Supports for Electrical Systems

260533 Raceways and Boxes for Electrical Systems

260553 Identification for Electrical Systems

262416 Panelboards

262816 Enclosed Switches

DIVISION 28 – ELECTRONIC SAFETY AND SECURITY

283500 Refrigerant Detection and Alarm

END OF TABLE OF CONTENTS

U.S. DEPARTMENT OF AGRICULTURE

AGRICULTURE RESEARCH SERVICE

UPGRADE CHILLER, ATHENS GA

RICHARD B. RUSSELL AGRICULTURAL RESEARCH CENTER (RRC)

FINAL TURNOVER January 28, 2021

COMMON WORK RESULTS FOR HVAC

23 05 00 - 1

SECTION 23 05 00

COMMON WORK RESULTS FOR HVAC

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes the following:

1. Dielectric fittings.

2. Mechanical sleeve seals.

3. Sleeves.

4. Escutcheons.

5. Grout.

6. HVAC demolition.

7. Equipment installation requirements common to equipment sections.

8. Concrete bases (Housekeeping Pads).

9. Supports and anchorages.

1.2 DEFINITIONS

A. 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 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 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.

1.3 SUBMITTALS

A. Welding certificates.

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1.4 QUALITY ASSURANCE

A. 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 connecting electrical services, circuit breakers, and conduit sizes are appropriately modified. If minimum energy ratings or efficiencies are specified, equipment shall comply with requirements.

PART 2 - PRODUCTS

2.1 DIELECTRIC FITTINGS

A. 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 Fittings:

1. Dielectric Unions: Factory-fabricated, union assembly, for 250-psig minimum working pressure at 180 deg F.

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

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

4. 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.

2.2 MECHANICAL SLEEVE SEALS

A. Mechanical Sleeve Seal Requirements:

1. Description: Modular sealing element unit, designed for field assembly, to fill annular space between pipe and sleeve.

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2. Sealing Elements: EPDM or NBR interlocking links shaped to fit surface of pipe. Include type and number required for pipe material and size of pipe.

3. Pressure Plates: Stainless steel. Include two for each sealing element.

4. Connecting Bolts and Nuts: Stainless steel of length required to secure pressure plates to sealing elements. Include one for each sealing element.

2.3 SLEEVES

A. Sleeve Requirements:

1. Steel Pipe: ASTM A 53, Type E, Grade B, Schedule 40, galvanized, plain ends.

2. Cast Iron: Cast or fabricated "wall pipe" equivalent to ductile-iron pressure pipe, with plain ends and integral water-stop, unless otherwise indicated.

3. Stack Sleeve Fittings: Manufactured, cast-iron sleeve with integral clamping flange.

Include clamping ring and bolts and nuts for membrane flashing.

a. Underdeck Clamp: Clamping ring with set screws.

2.4 ESCUTCHEONS

A. Description: Manufactured wall and ceiling escutcheons and floor plates, with an ID to closely fit around pipe, tube, and insulation of insulated piping and an OD that completely covers opening.

1. One-Piece, Deep-Pattern Type: Deep-drawn, box-shaped brass with polished chrome-plated finish.

2. One-Piece, Cast-Brass Type: Polished chrome-plated finish with set screw.

3. Split-Casting, Cast-Brass Type: Polished chrome-plated finish with concealed hinge and set screw.

4. Floor Plates: Cast-iron flange.

2.5 GROUT

A. Description: ASTM C 1107, Grade B, non-shrink and nonmetallic, dry hydraulic-cement grout.

1. Characteristics: Post-hardening, volume-adjusting, non-staining, noncorrosive, nongaseous, and recommended for interior and exterior applications.

2. Design Mix: 5000-psi, 28-day compressive strength.

3. Packaging: Premixed and factory packaged.

UPGRADE CHILLER, ATHENS GA

RICHARD B. RUSSELL AGRICULTURAL RESEARCH CENTER (RRC)

FINAL TURNOVER January 28, 2021

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PART 3 - EXECUTION

3.1 HVAC DEMOLITION

A. Disconnect, demolish, and remove HVAC systems, equipment, and components indicated to be removed. Nothing related to this project demolition is to be abandoned-in-place. All demolished systems and associated components are to be completely removed from the site.

B. 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.

1. Install escutcheons for penetrations of walls, ceilings, and floors.

a. Piping with Fitting or Sleeve Protruding from Wall: One-piece, deep-pattern type.

b. Chrome-Plated Piping: One-piece, cast-brass type with polished, chrome-plated finish.

c. Insulated Piping: One-piece, stamped-steel type.

d. Bare Piping at Wall and Floor Penetrations in Finished Spaces: One-piece, cast-brass type with polished, chrome-plated finish.

e. Bare Piping at Ceiling Penetrations in Finished Spaces: One-piece, cast-brass type with polished, chrome-plated finish.

f. Bare Piping in Unfinished Service Spaces: One-piece, cast-brass type with polished, chrome-plated finish.

g. Bare Piping in Equipment Rooms: One-piece, stamped-steel type.

h. Floor Penetrations: Floor plates.

2. Install sleeves for pipes passing through concrete and masonry walls, gypsum-board partitions, and concrete floor and roof slabs.

3. Verify final equipment locations prior to any pipe or sleeve roughing-in.

B. Aboveground, Exterior-Wall Pipe Penetrations: Seal penetrations using sleeves and mechanical sleeve seals. Select sleeve size to allow for 1-inch annular clear space between pipe 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 sleeve seals and install in annular space between pipe and sleeve. Tighten bolts against pressure plates that cause sealing elements to expand and make watertight seal.

UPGRADE CHILLER, ATHENS GA

RICHARD B. RUSSELL AGRICULTURAL RESEARCH CENTER (RRC)

FINAL TURNOVER January 28, 2021

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C. Underground, Exterior-Wall Pipe Penetrations: Install cast-iron "wall pipes" for sleeves. Seal pipe penetrations using mechanical sleeve seals. Select sleeve size to allow for 1-inch 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 sleeve seals and install in annular space between pipe and sleeve. Tighten bolts against pressure plates that cause sealing elements to expand and make watertight seal.

D. Fire-Barrier Penetrations: Maintain indicated fire rating of walls, partitions, ceilings, and floors at pipe penetrations. Seal pipe penetrations with firestop materials. Refer to Division 07 Section "Penetration Firestopping" for materials.

3.3 EQUIPMENT INSTALLATION - COMMON REQUIREMENTS

A. Install equipment to allow maximum possible headroom unless specific mounting heights are not indicated.

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

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

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

3.4 CONCRETE BASES

A. Concrete Bases: Anchor equipment to concrete base according to equipment manufacturer's written instructions and according to seismic codes at Project.

1. Construct concrete bases of dimensions indicated, but not less than 4 inches larger in both directions than supported unit.

2. Install dowel rods to connect concrete base to concrete floor. Unless otherwise indicated, install dowel rods on 18-inch centers around the full perimeter of the base.

3. Install epoxy-coated anchor bolts for supported equipment that extend through concrete base, and anchor into structural concrete floor.

4. Place and secure anchorage devices. Use supported equipment manufacturer's setting drawings, templates, diagrams, instructions, and directions furnished with items to be embedded.

5. Install anchor bolts to elevations required for proper attachment to supported equipment.

6. Install anchor bolts according to anchor-bolt manufacturer's written instructions.

7. Use 3000-psi, 28-day compressive-strength concrete and reinforcement.

UPGRADE CHILLER, ATHENS GA

RICHARD B. RUSSELL AGRICULTURAL RESEARCH CENTER (RRC)

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3.5 ERECTION OF METAL SUPPORTS AND ANCHORAGES

A. Cut, fit, and place miscellaneous metal supports accurately in location, alignment, and elevation to support and anchor HVAC materials and equipment.

B. Field Welding: Comply with AWS D1.1.

3.6 GROUTING

A. Mix and install grout for HVAC equipment base bearing surfaces, pump and other equipment base plates, and anchors. Comply with the following requirements:

1. Clean surfaces that will come into contact with grout.

2. Provide forms as required for placement of grout.

3. Avoid air entrapment during placement of grout.

4. Place grout, completely filling equipment bases.

5. Place grout on concrete bases and provide smooth bearing surface for equipment.

6. Place grout around anchors.

7. Cure placed grout.

END OF SECTION

UPGRADE CHILLER, ATHENS GA

RICHARD B. RUSSELL AGRICULTURAL RESEARCH CENTER (RRC)

FINAL TURNOVER January 28, 2021

METERS AND GAUGES FOR HVAC PIPING 23 05 19 - 1

SECTION 23 05 19

METERS AND GAUGES FOR HVAC PIPING

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Thermometers.

2. Pressure gauges.

3. Pressure and temperature test ports.

1.2 ACTION SUBMITTALS

A. Product Data: For each type of product.

PART 2 - PRODUCTS

2.1 LIQUID-IN-GLASS THERMOMETERS

A. Metal-Case Industrial-Style, Liquid-in-Glass Thermometers

1. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

a. Miljoco Corporation.

b. Trerice, H. O. Co.

c. Weiss Instruments, Inc.

2. General: Cast aluminum 9-inch nominal adjustable angle case with epoxy finish, ultraviolet protective acrylic window, and glass tube with magnifying lens, blue organic liquid, and non-reflective aluminum tube background with permanently etched scale markings graduated in deg F and deg C. Stem shall be brass with a bare stem for thermowell installation and of length to suit installation. Connector shall be a 1-1/4-inch coupling nut, with ASME B1.1 screw threads.

3. Accuracy: Plus or minus 1 scale division.

4. Scale (only Fahrenheit ranges are shown):

a. Chilled Water: 0-100 deg F (Figure intervals: 5 deg/minor divisions 1 deg)

b. Condenser Water: 0-100 deg F (Figure intervals: 5 deg/minor divisions 1 deg)

5. Accessories (provide the following):

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METERS AND GAUGES FOR HVAC PIPING 23 05 19 - 2

a. Thermowells: brass, pressure-tight, socket-type fitting made for insertion into piping tee fitting.

1) Bore: Diameter required to match thermometer bulb or stem.

2) Insertion Length: Insertion length shall be roughly half of the pipe diameter; minimum insertion length shall be 2 inches.

3) Lagging Extension: Include on thermowells for insulated piping and tubing.

4) Bushings: for converting size of thermowell's internal screw thread to size of thermometer connection.

5) Heat-Transfer Medium: Mixture of graphite and glycerin.

2.2 PRESSURE GAUGES

A. Direct-Mounted, Metal-Case, Dial-Type Pressure Gauges

1. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

a. Miljoco Corporation.

b. Trerice, H. O. Co.

c. Weiss Instruments, Inc.

2. Standard: ASME B40.100.

3. General: 4-1/2-inch diameter 304 stainless steel glycerin-filled case with 304 stainless steel ring, glass window, and NPS 1/4, ASME B1.20.1 brass pipe threads and bottom-outlet pressure connection. pressure gauge shall have bourdon tube pressure-element assembly, mechanical movement with link to pressure element, and connection to dark-colored metal pointer. Dial shall be constructed of nonreflective aluminum with white background and permanently etched black scale markings graduated in psi.

a. Pressure gauges for pumps shall be compound gauges.

4. Accuracy: 1 percent full scale ASME B40.1 grade 2A

5. Scale:

a. Chilled Water: 0-60 psi (figure intervals/minor divisions: 10/1)

b. Condenser Water: 0-30 psi (figure intervals/ minor divisions: 5/0.5)

c. Pumps: 30 in.Hg.-60 psi (figure intervals/minor div: 10/10 / 2/1)

6. Accessories (provide the following):

a. Snubbers: ASME B40.100, brass; NPS to match connected pressure gauge, ASME B1.20.1 pipe threads and porous-metal-type surge-dampening device. Include extension for use on insulated piping.

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METERS AND GAUGES FOR HVAC PIPING 23 05 19 - 3

b. Instrument Tubing: ASTM B88 Type L hard-drawn copper tubing with ASTM B16.22 wrought copper fittings and soldered joints.

c. Valves: Brass ball valve, NPS 1/4 to match connected pressure gauge, ASME B1.20.1 pipe threads (needle valves are not allowed). Provide valve stem extensions and stand-off bracket for installation in insulated pipe systems.

d. Manifolds: Pressure gauges for pumps shall include manifolds with valves to allow one pressure gauge to take multiple readings.

2.3 PRESSURE AND TEMPERATURE TEST PORTS

A. Pressure and Temperature Test Ports and Test-Port Kits

1. Pressure and Temperature Ports: NPS 1/4, ASME B1.20.1 pipe threaded test-station fitting made for insertion into a threaded pipe tee fitting or threaded weld-o-let. Port shall receive a 1/8-inch outer diameter pressure or temperature probe. Body shall be brass with neoprene self-sealing valve cores inserts and gasketed and threaded cap with cap strap. Include extended stem on units to be installed in insulated piping. Minimum pressure and temperature rating: 500 psig at 200 deg F.

2. Test-Plug Kits: Furnish one test-plug kit in protective carrying case with formed instrument padding. Each kit shall contain one 0-100 psi pressure gauge with adapter, one 25-125 deg F pocket testing thermometer, and one 0-220 deg F pocket testing thermometer.

PART 3 - EXECUTION

3.1 INSTALLATION

A. General Requirements

1. Install thermowells with socket extending to center of pipe and in vertical position in piping tees.

2. Install thermowells of sizes required to match thermometer connectors. Include bushings if required to match sizes.

3. Install thermowells with extension on insulated piping.

4. Fill thermowells with heat-transfer medium.

5. Install direct-mounted thermometers in thermowells and adjust vertical and tilted positions.

6. Install direct-mounted pressure gauges in piping tees with pressure gauge located on pipe at the most readable position.

7. Install valve and snubber in piping for each pressure gauge for fluids.

8. Provide compound gauges for all pump applications.

9. Install test plugs in piping tees or weld-o-lets.

10. Adjust faces of meters and gauges to proper angle for best visibility.

UPGRADE CHILLER, ATHENS GA

RICHARD B. RUSSELL AGRICULTURAL RESEARCH CENTER (RRC)

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GENERAL-DUTY VALVES FOR HVAC PIPING 23 05 23 - 1

SECTION 23 05 23

GENERAL-DUTY VALVES FOR HVAC PIPING

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Brass ball valves.

2. Bronze ball valves.

3. High-performance butterfly valves.

4. Bronze swing check valves.

5. Iron swing check valves.

6. Globe-style silent check valves.

7. Chainwheels.

1.2 SUBMITTALS

A. Product Data: For each type of valve indicated.

1.3 QUALITY ASSURANCE

A. Source Limitations for Valves: Obtain each type of valve from single source from single manufacturer.

B. ASME Compliance: ASME B16.10 and ASME B16.34 for ferrous valve dimensions and design criteria.

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 Actuator Types:

1. Hand Lever: For quarter-turn valves NPS 6 and smaller.

2. Gear Actuator: For quarter-turn valves NPS 8 and larger.

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GENERAL-DUTY VALVES FOR HVAC PIPING 23 05 23 - 2

3. Hand Wheel: For valves other than quarter-turn types.

4. Chainwheel: Device for attachment to valve handwheel, stem, or other actuator; of size and with chain for mounting height, as indicated in the "Valve Installation" Article.

E. Valves in Insulated Piping: Provide stem extensions sized to allow for valve operation without damaging the insulation:

1. Ball Valves: With extended operating handle of non-thermal-conductive material, and protective sleeve that allows operation of valve without breaking the vapor seal or disturbing insulation.

2. Butterfly Valves: With extended neck.

F. Valve-End Connections:

1. Flanged: With flanges according to ASME B16.1 for iron valves.

2. Solder Joint: With sockets according to ASME B16.18.

3. Threaded: With threads according to ASME B1.20.1.

2.2 BRASS BALL VALVES

A. Two-Piece, Full-Port, Brass Ball Valves with Stainless-Steel Trim:

1. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

a. Crane Co.; Crane Valve Group; Crane Valves.

b. Flow-Tek, Inc.; a subsidiary of Bray International, Inc.

c. Milwaukee Valve Company.

d. NIBCO INC.

e. Watts Regulator Co.; a division of Watts Water Technologies, Inc.

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: Forged brass.

f. Ends: Threaded.

g. Seats: PTFE or TFE.

h. Stem: Stainless steel.

i. Ball: Stainless steel, vented.

j. Port: Full.

2.3 BRONZE BALL VALVES

A. Two-Piece, Full-Port, Bronze Ball Valves with Stainless-Steel Trim:

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GENERAL-DUTY VALVES FOR HVAC PIPING 23 05 23 - 3

1. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

a. Crane Co.; Crane Valve Group; Crane Valves.

b. Flow-Tek, Inc.; a subsidiary of Bray International, Inc.

c. Milwaukee Valve Company.

d. NIBCO INC.

e. Watts Regulator Co.; a division of Watts Water Technologies, Inc.

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.

j. Port: Full.

2.4 HIGH-PERFORMANCE BUTTERFLY VALVES

A. Class 150, Single-Flange, High-Performance Butterfly Valves:

1. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

a. Bray Controls; a division of Bray International.

b. Crane Co.; Crane Valve Group; Flowseal.

c. Milwaukee Valve Company.

d. NIBCO INC.

2. Description:

a. Standard: MSS SP-68.

b. CWP Rating: 285 psig at 100 deg F.

c. Body Design: Lug type; suitable for bidirectional dead-end service at rated pressure without use of downstream flange.

d. Body Material: Carbon steel.

e. Body Finish: Powder coated epoxy finish.

f. Seat: Reinforced PTFE or metal.

g. Stem: Stainless steel.

h. Disc: Stainless steel or aluminum bronze

i. Service: Bidirectional.

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RICHARD B. RUSSELL AGRICULTURAL RESEARCH CENTER (RRC)

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GENERAL-DUTY VALVES FOR HVAC PIPING 23 05 23 - 4

2.5 BRONZE SWING CHECK VALVES

A. Class 125, Bronze Swing Check Valves with Bronze Disc:

1. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

a. Crane Co.; Crane Valve Group.

b. Milwaukee Valve Company.

c. NIBCO INC.

2. Description:

a. Standard: MSS SP-80, Type 3.

b. CWP Rating: 200 psig.

c. Body Design: Horizontal flow.

d. Body Material: ASTM B 62, bronze.

e. Ends: Threaded.

f. Disc: Bronze.

2.6 IRON SWING CHECK VALVES

A. Class 125, Iron Swing Check Valves with Metal Seats:

1. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

a. Crane Co.; Crane Valve Group.

b. Milwaukee Valve Company.

c. NIBCO INC.

2. Description:

a. Standard: MSS SP-71, Type I.

b. NPS 2-1/2 to NPS 12, CWP Rating: 200 psig.

c. NPS 14 to NPS 24, CWP Rating: 150 psig.

d. Body Design: Clear or full waterway.

e. Body Material: ASTM A 126, gray iron with bolted bonnet.

f. Ends: Flanged.

g. Trim: Bronze.

h. Gasket: Asbestos free.

2.7 GLOBE-STYLE SILENT CHECK VALVE

A. Class 125, Globe-Style Silent Check Valves:

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GENERAL-DUTY VALVES FOR HVAC PIPING 23 05 23 - 5

1. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

a. Crane Co.; Crane Valve Group.

b. Milwaukee Valve Company.

c. NIBCO INC.

2. Check valves shall be of the flanged globe style, center-guided, silent, non-slam type.

Check valves to have cast iron body, bronze disc and seat, and stainless steel spring.

Flange drilling to be ANSI B16.1 class 125. Valve to have a cracking pressure of 1/4 to 1/2 psi, and fully open at a flow velocity of 4 fps. Operation of the valve shall not be affected by position of installation. Valve shall be capable of fully closing prior to reversal of flow, and shall eliminate water hammer. A Buna-N seal shall be furnished to provide bubble tight shutoff. All component parts shall be field replaceable.

2.8 CHAINWHEELS

A. Description: Valve actuation assembly with sprocket rim, brackets, and chain.

1. Brackets: Type, number, size, and fasteners required to mount actuator on valve.

2. Attachment: For connection to butterfly valve stems.

3. Sprocket Rim with Chain Guides: Ductile iron, of type and size required for valve. Include zinc coating.

4. Chain: Hot-dip, galvanized steel, of size required to fit sprocket rim.

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.

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GENERAL-DUTY VALVES FOR HVAC PIPING 23 05 23 - 6

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.

E. Install chainwheels on operators for butterfly valves NPS 4 and larger and more than 96 inches above floor. Extend chains to 60 inches above finished floor.

F. Install swing check valves for proper direction of flow and in proper orientation for the check valve installed.

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. Select valves, except wafer types, with the following end connections:

1. For Copper Tubing, NPS 2 and Smaller: Threaded ends except where solder-joint valve-end option is indicated in valve schedules below.

2. For Steel Piping, NPS 2 and Smaller: Threaded ends.

3. For Steel Piping, NPS 2-1/2 and Larger: Flanged ends

3.5 CHILLED-WATER VALVE SCHEDULE

A. Pipe NPS 2 and Smaller:

1. Ball Valves: Brass or Bronze

2. Bronze Swing Check Valves

B. Pipe NPS 2-1/2 and Larger:

1. High-Performance Butterfly Valves

2. Iron Swing Check Valves

C. Pump Discharge Check Valve

1. Globe-Style Silent Check Valves

UPGRADE CHILLER, ATHENS GA

RICHARD B. RUSSELL AGRICULTURAL RESEARCH CENTER (RRC)

FINAL TURNOVER January 28, 2021

GENERAL-DUTY VALVES FOR HVAC PIPING 23 05 23 - 7

3.6 HEATING-WATER VALVE SCHEDULE

A. Pipe NPS 2 and Smaller:

1. Ball Valves: Brass or Bronze

2. Bronze Swing Check Valves

B. Pipe NPS 2-1/2 and Larger:

1. High-Performance Butterfly Valves

2. Iron Swing Check Valves

C. Pump Discharge Check Valve

1. Globe-Style Silent Check Valves

UPGRADE CHILLER, ATHENS GA

RICHARD B. RUSSELL AGRICULTURAL RESEARCH CENTER (RRC)

FINAL TURNOVER January 28, 2021

HANGERS AND SUPPORTS FOR HVAC PIPING AND EQUIPMENT 23 05 29 - 1

SECTION 23 05 29

HANGERS AND SUPPORTS FOR HVAC PIPING AND EQUIPMENT

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Metal pipe hangers and supports.

2. Trapeze pipe hangers.

3. Thermal-hanger shield inserts.

4. Fastener systems.

5. Equipment supports.

1.2 PERFORMANCE REQUIREMENTS

A. Structural Performance: Hangers and supports for HVAC piping and equipment shall withstand the effects of gravity loads and stresses within limits and under conditions indicated according to ASCE/SEI 7.

1. Design supports for multiple pipes capable of supporting combined weight of supported systems, system contents, and test water.

2. Design equipment supports capable of supporting combined operating weight of supported equipment and connected systems and components.

1.3 ACTION SUBMITTALS

A. Product Data: For each type of product indicated.

B. Shop Drawings: Show fabrication and installation details and include calculations for the following; include Product Data for components:

1. Trapeze pipe hangers.

2. Equipment supports.

1.4 INFORMATIONAL SUBMITTALS

A. Welding certificates.

1.5 QUALITY ASSURANCE

A. Structural Steel Welding Qualifications: Qualify procedures and personnel according to AWS D1.1/D1.1M, "Structural Welding Code - Steel."

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HANGERS AND SUPPORTS FOR HVAC PIPING AND EQUIPMENT 23 05 29 - 2

B. Pipe Welding Qualifications: Qualify procedures and operators according to ASME Boiler and Pressure Vessel Code.

PART 2 - PRODUCTS

2.1 METAL PIPE HANGERS AND SUPPORTS

A. Carbon-Steel Pipe Hangers and Supports:

1. Description: MSS SP-58, Types 1 through 58, factory-fabricated components.

2. Galvanized Metallic Coatings: Pregalvanized or hot dipped.

3. Nonmetallic Coatings: Plastic coating, jacket, or liner.

4. Padded Hangers: Hanger with fiberglass or other pipe insulation pad or cushion to support bearing surface of piping.

5. Hanger Rods: Continuous-thread rod, nuts, and washer made of carbon steel.

2.2 TRAPEZE PIPE HANGERS

A. Description: MSS SP-69, Type 59, shop- or field-fabricated pipe-support assembly made from structural carbon-steel shapes with MSS SP-58 carbon-steel hanger rods, nuts, saddles, and U-bolts.

2.3 THERMAL-HANGER SHIELD INSERTS

A. Insulation-Insert Material for Cold Piping: ASTM C 552, Type II cellular glass with 100-psig minimum compressive strength and vapor barrier.

B. Insulation-Insert Material for Hot Piping: ASTM C 552, Type II cellular glass with 100-psig minimum compressive strength.

C. For Trapeze or Clamped Systems: Insert and shield shall cover entire circumference of pipe.

D. For Clevis or Band Hangers: Insert and shield shall cover lower 180 degrees of pipe.

E. Insert Length: Extend 2 inches beyond sheet metal shield for piping operating below ambient air temperature.

2.4 FASTENER SYSTEMS

A. Mechanical-Expansion Anchors: Insert-wedge-type, zinc-coated steel anchors, for use in hardened portland cement concrete; with pull-out, tension, and shear capacities appropriate for supported loads and building materials where used.

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RICHARD B. RUSSELL AGRICULTURAL RESEARCH CENTER (RRC)

FINAL TURNOVER January 28, 2021

HANGERS AND SUPPORTS FOR HVAC PIPING AND EQUIPMENT 23 05 29 - 3

2.5 EQUIPMENT SUPPORTS

A. Description: Welded, shop- or field-fabricated equipment support made from structural carbon-steel shapes.

2.6 MISCELLANEOUS MATERIALS

A. Structural Steel: ASTM A 36/A 36M, carbon-steel plates, shapes, and bars; black and galvanized.

B. Grout: ASTM C 1107, factory-mixed and -packaged, dry, hydraulic-cement, non-shrink and nonmetallic grout; suitable for interior and exterior applications.

1. Properties: Non-staining, non-corrosive, and non-gaseous.

2. Design Mix: 5,000-psi, 28-day compressive strength.

PART 3 - EXECUTION

3.1 HANGER AND SUPPORT INSTALLATION

A. Metal Pipe-Hanger Installation: Comply with MSS SP-69 and MSS SP-89. Install hangers, supports, clamps, and attachments as required to properly support piping from the building structure.

B. Metal Trapeze Pipe-Hanger Installation: Comply with MSS SP-69 and MSS SP-89. Arrange for grouping of parallel runs of horizontal piping, and support together on field-fabricated trapeze pipe hangers.

1. Pipes of Various Sizes: Support together and space trapezes for smallest pipe size or install intermediate supports for smaller diameter pipes as specified for individual pipe hangers.

2. Field fabricate from ASTM A 36/A 36M, carbon-steel shapes selected for loads being supported. Weld steel according to AWS D1.1/D1.1M.

C. Thermal-Hanger Shield Installation: Install in pipe hanger or shield for insulated piping.

D. Fastener System Installation:

1. Install mechanical-expansion anchors in concrete after concrete is placed and completely cured. Install fasteners according to manufacturer's written instructions.

E. Install hangers and supports complete with necessary attachments, inserts, bolts, rods, nuts, washers, and other accessories.

F. Equipment Support Installation: Fabricate from welded-structural-steel shapes.

UPGRADE CHILLER, ATHENS GA

RICHARD B. RUSSELL AGRICULTURAL RESEARCH CENTER (RRC)

FINAL TURNOVER January 28, 2021

HANGERS AND SUPPORTS FOR HVAC PIPING AND EQUIPMENT 23 05 29 - 4

G. Install hangers and supports to allow controlled thermal movement of piping systems, to permit freedom of movement between pipe anchors, and to facilitate action of expansion joints, expansion loops, expansion bends, and similar units.

H. Install lateral bracing with pipe hangers and supports to prevent swaying.

I. Install building attachments within concrete slabs or attach to structural steel. Install additional attachments at concentrated loads, including valves, flanges, and strainers, NPS 2- 1/2 and larger and at changes in direction of piping. Install concrete inserts before concrete is placed; fasten inserts to forms and install reinforcing bars through openings at top of inserts.

J. Load Distribution: Install hangers and supports so that piping live and dead loads and stresses from movement will not be transmitted to connected equipment.

K. Pipe Slopes: Install hangers and supports to provide indicated pipe slopes and to not exceed maximum pipe deflections allowed by ASME B31.9 for building services piping.

L. Insulated Piping:

1. Attach clamps and spacers to piping.

a. Piping Operating above Ambient Air Temperature: Clamp may project through insulation.

b. Piping Operating below Ambient Air Temperature: Use thermal-hanger shield insert with clamp sized to match OD of insert.

c. Do not exceed pipe stress limits allowed by ASME B31.9 for building services piping.

2. Install MSS SP-58, Type 39, protection saddles if insulation without vapor barrier is indicated. Fill interior voids with insulation that matches adjoining insulation.

a. Option: Thermal-hanger shield inserts may be used. Include steel weight-distribution plate for pipe NPS 4 and larger if pipe is installed on rollers.

3. Install MSS SP-58, Type 40, protective shields on cold piping with vapor barrier. Shields shall span an arc of 180 degrees.

a. Option: Thermal-hanger shield inserts may be used. Include steel weight-distribution plate for pipe NPS 4 and larger if pipe is installed on rollers.

4. Shield Dimensions for Pipe: Not less than the following:

a. NPS 1/4 to NPS 3-1/2: 12 inches long and 0.048 inch thick.

b. NPS 4: 12 inches long and 0.06 inch thick.

c. NPS 5 and NPS 6: 18 inches long and 0.06 inch thick.

d. NPS 8 to NPS 14: 24 inches long and 0.075 inch thick.

e. NPS 16 to NPS 24: 24 inches long and 0.105 inch thick.

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RICHARD B. RUSSELL AGRICULTURAL RESEARCH CENTER (RRC)

FINAL TURNOVER January 28, 2021

HANGERS AND SUPPORTS FOR HVAC PIPING AND EQUIPMENT 23 05 29 - 5

5. Pipes NPS 8 and Larger: Include wood or reinforced calcium-silicate-insulation inserts of length at least as long as protective shield.

6. Thermal-Hanger Shields: Install with insulation same thickness as piping insulation.

3.2 EQUIPMENT SUPPORTS

A. Fabricate structural-steel stands to suspend equipment from structure overhead or to support equipment above floor.

B. Grouting: Place grout under supports for equipment and make bearing surface smooth.

C. Provide lateral bracing, to prevent swaying, for equipment supports.

3.3 METAL FABRICATIONS

A. Cut, drill, and fit miscellaneous metal fabrications for trapeze pipe hangers and equipment supports.

B. Fit exposed connections together to form hairline joints. Field weld connections that cannot be shop welded because of shipping size limitations.

C. Field Welding: Comply with AWS D1.1/D1.1M procedures for shielded, metal arc welding;

appearance and quality of welds; and methods used in correcting welding work; and with the following:

1. Use materials and methods that minimize distortion and develop strength and corrosion resistance of base metals.

2. Obtain fusion without undercut or overlap.

3. Remove welding flux immediately.

4. Finish welds at exposed connections so no roughness shows after finishing and so contours of welded surfaces match adjacent contours.

3.4 ADJUSTING

A. Hanger Adjustments: Adjust hangers to distribute loads equally on attachments and to achieve indicated slope of pipe.

B. Trim excess length of continuous-thread hanger and support rods to 1-1/2 inches.

3.5 PAINTING

A. Touchup: Clean field welds and abraded areas of shop paint. Paint exposed areas immediately after erecting hangers and supports. Use same materials as used for shop painting. Comply with SSPC-PA 1 requirements for touching up field-painted surfaces.

1. Apply paint by brush or spray to provide a minimum dry film thickness of 2.0 mils.

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RICHARD B. RUSSELL AGRICULTURAL RESEARCH CENTER (RRC)

FINAL TURNOVER January 28, 2021

HANGERS AND SUPPORTS FOR HVAC PIPING AND EQUIPMENT 23 05 29 - 6

B. Galvanized Surfaces: Clean welds, bolted connections, and abraded areas and apply galvanizing-repair paint to comply with ASTM A 780.

3.6 HANGER AND SUPPORT SCHEDULE

A. Specific hanger and support requirements are in Sections specifying piping systems and equipment.

B. Comply with MSS SP-69 for pipe-hanger selections and applications that are not specified in piping system Sections.

C. Use hangers and supports with galvanized metallic coatings for piping and equipment that will not have field-applied finish.

D. Use nonmetallic coatings on attachments for electrolytic protection where attachments are in direct contact with copper tubing.

E. Use carbon-steel pipe hangers and supports and metal trapeze pipe hangers and attachments for general service applications.

F. Use padded hangers for piping that is subject to scratching.

G. Use thermal-hanger shield inserts for insulated piping and tubing.

H. Horizontal-Piping Hangers and Supports: Unless otherwise indicated and except as specified in piping system Sections, install the following types:

1. Adjustable, Steel Clevis Hangers (MSS Type 1): For suspension of non-insulated or insulated, stationary pipes NPS 1/2 to NPS 30.

2. Yoke-Type Pipe Clamps (MSS Type 2): For suspension of up to 1,050 deg F, pipes NPS 4 to NPS 24, requiring up to 4 inches of insulation.

3. Carbon- or Alloy-Steel, Double-Bolt Pipe Clamps (MSS Type 3): For suspension of pipes NPS 3/4 to NPS 36, requiring clamp flexibility and up to 4 inches of insulation.

4. Adjustable, Steel Band Hangers (MSS Type 7): For suspension of non-insulated, stationary pipes NPS 1/2 to NPS 8.

5. U-Bolts (MSS Type 24): For support of heavy pipes NPS 1/2 to NPS 30.

6. Pipe Saddle Supports (MSS Type 36): For support of pipes NPS 4 to NPS 36, with steel-pipe base stanchion support and cast-iron floor flange or carbon-steel plate.

7. Pipe Stanchion Saddles (MSS Type 37): For support of pipes NPS 4 to NPS 36, with steel-pipe base stanchion support and cast-iron floor flange or carbon-steel plate, and with U-bolt to retain pipe.

8. Single-Pipe Rolls (MSS Type 41): For suspension of pipes NPS 1 to NPS 30, from two rods if longitudinal movement caused by expansion and contraction might occur.

9. Complete Pipe Rolls (MSS Type 44): For support of pipes NPS 2 to NPS 42) if longitudinal movement caused by expansion and contraction might occur but vertical adjustment is not necessary.

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RICHARD B. RUSSELL AGRICULTURAL RESEARCH CENTER (RRC)

FINAL TURNOVER January 28, 2021

HANGERS AND SUPPORTS FOR HVAC PIPING AND EQUIPMENT 23 05 29 - 7

I. Vertical-Piping Clamps: Unless otherwise indicated and except as specified in piping system Sections, install the following types:

1. Extension Pipe or Riser Clamps (MSS Type 8): For support of pipe risers NPS 3/4 to

NPS 24.

2. Carbon- or Alloy-Steel Riser Clamps (MSS Type 42): For support of pipe risers NPS 3/4 to NPS 24 if longer ends are required for riser clamps.

J. Hanger-Rod Attachments: Unless otherwise indicated and except as specified in piping system Sections, install the following types:

1. Steel Turnbuckles (MSS Type 13): For adjustment up to 6 inches for heavy loads.

2. Steel Clevises (MSS Type 14): For 120 to 450 deg F piping installations.

K. Building Attachments: Unless otherwise indicated and except as specified in piping system Sections, install the following types:

1. Steel or Malleable Concrete Inserts (MSS Type 18): For upper attachment to suspend pipe hangers from concrete ceiling.

2. Top-Beam C-Clamps (MSS Type 19): For use under roof installations with bar-joist construction, to attach to top flange of structural shape.

3. Side-Beam or Channel Clamps (MSS Type 20): For attaching to bottom flange of beams, channels, or angles.

4. Center-Beam Clamps (MSS Type 21): For attaching to center of bottom flange of beams.

5. Welded Beam Attachments (MSS Type 22): For attaching to bottom of beams if loads are considerable and rod sizes are large.

6. C-Clamps (MSS Type 23): For structural shapes.

7. Welded-Steel Brackets: For support of pipes from below, or for suspending from above by using clip and rod. Use one of the following for indicated loads:

a. Light (MSS Type 31): 750 lb.

b. Medium (MSS Type 32): 1500 lb.

c. Heavy (MSS Type 33): 3000 lb.

8. Side-Beam Brackets (MSS Type 34): For sides of steel or wooden beams.

9. Plate Lugs (MSS Type 57): For attaching to steel beams if flexibility at beam is required.

L. Saddles and Shields: Unless otherwise indicated and except as specified in piping system Sections, install the following types:

1. Steel-Pipe-Covering Protection Saddles (MSS Type 39): To fill interior voids with insulation that matches adjoining insulation.

2. Protection Shields (MSS Type 40): Of length recommended in writing by manufacturer to prevent crushing insulation.

3. Thermal-Hanger Shield Inserts: For supporting insulated pipe.

UPGRADE CHILLER, ATHENS GA

RICHARD B. RUSSELL AGRICULTURAL RESEARCH CENTER (RRC)

FINAL TURNOVER January 28, 2021

HANGERS AND SUPPORTS FOR HVAC PIPING AND EQUIPMENT 23 05 29 - 8

M. Spring Hangers and Supports: Unless otherwise indicated and except as specified in piping system Sections, install the following types:

1. Spring Cushions (MSS Type 48): For light loads if vertical movement does not exceed 1- 1/4 inches.

2. Spring-Cushion Roll Hangers (MSS Type 49): For equipping Type 41, roll hanger with springs.

3. Variable-Spring Base Supports (MSS Type 52): Preset to indicated load and limit variability factor to 25 percent to allow expansion and contraction of piping system from base support.

N. Comply with MSS SP-69 for trapeze pipe-hanger selections and applications that are not specified in piping system Sections.

O. Use mechanical-expansion anchors instead of building attachments where required in concrete construction.

UPGRADE CHILLER, ATHENS GA

RICHARD B. RUSSELL AGRICULTURAL RESEARCH CENTER (RRC)

FINAL TURNOVER January 28, 2021

IDENTIFICATION FOR HVAC PIPING AND EQUIPMENT 23 05 53 - 1

SECTION 23 05 53

IDENTIFICATION FOR HVAC PIPING AND EQUIPMENT

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Equipment labels.

2. Warning signs and labels.

3. Pipe labels.

1.2 ACTION SUBMITTALS

A. Product Data: For each type of product.

PART 2 - PRODUCTS

2.1 EQUIPMENT LABELS

A. Plastic Labels for Equipment:

1. Material and Thickness: 1/8-inch-thick multilayer, multicolor, plastic labels for mechanical engraving.

2. Maximum Temperature: Able to withstand temperatures up to 160 deg F.

3. Minimum Label Size: Length and width vary for required label content, but not less than

2-1/2 by 3/4 inch.

4. Minimum Letter Size: 1/2-inch.

5. Adhesive: Contact-type permanent adhesive, compatible with label and with substrate.

6. Color Schedule

a. Mechanical Equipment and Controls

1) Letter Color: White

2) Background Color: Black

b. Duct Smoke Detectors, Fire Dampers, and Combination Fire/Smoke Dampers

1) Letter Color: White

2) Background Color: Red

B. Label Content: Include equipment's Drawing designation or unique equipment number.

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IDENTIFICATION FOR HVAC PIPING AND EQUIPMENT 23 05 53 - 2

2.2 WARNING SIGNS AND LABELS

A. Material and Thickness: Multilayer, multicolor, plastic labels for mechanical engraving, 1/8-inch-thick, and having predrilled holes for attachment hardware.

B. Requirements:

1. Letter Color: White.

2. Background Color: Red.

3. Maximum Temperature: Able to withstand temperatures up to 160 deg F.

4. Minimum Label Size: Length and width vary for required label content, but not less than

2-1/2 by 3/4 inch.

5. Minimum Letter Size: 1/4 inch for name of units if viewing distance is less than 24 inches, 1/2 inch for viewing distances up to 72 inches, and proportionately larger lettering for greater viewing distances. Include secondary lettering two-thirds to three-quarters the size of principal lettering.

6. Fasteners: Stainless-steel self-tapping screws.

7. Adhesive: Contact-type permanent adhesive, compatible with label and with substrate.

8. Label Content: Include caution and warning information plus emergency notification instructions.

2.3 PIPE LABELS

A. General Requirements for Manufactured Pipe Labels: Preprinted, color-coded, with lettering indicating service, and showing flow direction according to ASME A13.1.

B. Pretensioned Pipe Labels: Precoiled, semirigid plastic formed to cover full circumference of pipe and to attach to pipe without fasteners or adhesive.

C. Pipe Label Color Schedule:

1. Chilled Water Piping: White letters on a safety-green background.

2. Condenser Water Piping: White letters on a safety-green background.

3. Drain Piping: Black letters on a safety-white background.

4. Refrigerant Relief Piping: Black letters on a safety-white background.

5. Service Water Piping: Black letters on a safety-white background.

6. Chemical Piping: Black letters on a safety-white background.

D. Pipe Label Contents: Include identification of piping service using same designations or abbreviations as used on Drawings; also include pipe size and an arrow indicating flow direction.

1. Flow-Direction Arrows: Integral with piping system service lettering to accommodate both directions, or as a separate unit on each pipe label to indicate flow direction.

E. Pipe Marker Size Chart

UPGRADE CHILLER, ATHENS GA

RICHARD B. RUSSELL AGRICULTURAL RESEARCH CENTER (RRC)

FINAL TURNOVER January 28, 2021

IDENTIFICATION FOR HVAC PIPING AND EQUIPMENT 23 05 53 - 3

Outside Pipe Diameter Minimum Label Text Including Covering Size Height Up to NPS 1.25 1”x8” 1/2" > NPS 1.25 up to NPS 2 1”x8” 3/4" > NPS 2 up to NPS 7 2”x12” 1-1/4” > NPS 7 up to NPS 10 3”x24” 2-1/2” > NPS 10 4”x32” 3-1/2”

PART 3 - EXECUTION

3.1 PREPARATION

A. Clean piping and equipment surfaces of substances that could impair bond of identification devices, including dirt, oil, grease, release agents, and incompatible primers, paints, and encapsulants.

3.2 EQUIPMENT LABEL INSTALLATION

A. Install or permanently fasten labels on each major item of mechanical equipment.

B. Install an additional equipment label on the access door when equipment is located above an inaccessible ceiling system.

C. Install an equipment label on the ceiling grid or ceiling access panel when a duct smoke detector, fire damper, or combination fire/smoke damper is located above the ceiling.

3.3 PIPE LABEL INSTALLATION

A. Pipe Label Locations: Locate pipe labels where piping is exposed or above accessible ceilings in finished spaces; machine rooms; accessible maintenance spaces such as shafts, tunnels, and plenums; and exterior exposed locations as follows:

1. Near each valve and control device.

2. Near each branch connection, excluding short takeoffs for fixtures and terminal units.

Where flow pattern is not obvious, mark each pipe at branch.

3. Near penetrations and on both sides of through walls, floors, ceilings, and inaccessible enclosures.

4. At access doors, manholes, and similar access points that permit view of concealed piping.

5. Near major equipment items and other points of origination and termination.

6. Spaced at maximum intervals of 25 feet along each run.

UPGRADE CHILLER, ATHENS GA

RICHARD B. RUSSELL AGRICULTURAL RESEARCH CENTER (RRC)

FINAL TURNOVER January 28, 2021

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

SECTION 23 05 93

TESTING, ADJUSTING, AND BALANCING FOR HVAC

PART 1 - GENERAL

1.1…