asi no. 4t. astm d2467 - standard specification for poly(vinyl chloride) (pvc) plastic pipe...

DelDOT Phase II Renovations of 2

Delaware • Maryland • Rhode Island

ASI NO. 4

TO : Conventional Builders

FROM : Studio JAED

DATE : March 4, 2019

PROJECT : DelDOT Phase II Renovations

________________________________________________________________

DESCRIPTION

Provide two (2) cost proposals to perform the following scope revisions:

Proposal No. 1 – Provide cost proposal to perform work described in 1/8.3 and report measured hot water flow readings. Work is to be weather-dependent, scheduled during off-hours, and approved in advance by DelDOT.

Proposal No. 2 – Provide cost proposal to perform work described below and herein.

Changes to Drawings1. Drawing M8.0 – See attached, revised Drawing M8.0.

a. Revise Schedules for Cabinet Unit Heaters, Diffusers, and Return Air Grilles.b. Add VAV Terminal Unit Schedule. c. Delete Electric Duct heater Schedule.

2. Drawing M8.1 – See attached, revised Drawing M8.1. a. Add demolition of existing air terminals, VAV terminal units, electric duct heaters,

and ductwork as indicated.3. Drawing M8.2 – See attached, revised Drawing M8.2.

a. Drain existing hot water system within the area of work and install new isolation valves at VAV terminal unit locations during off-hours, temperature-dependent hot water shutdown coordinated with and approved in advance by DelDOT.

b. Add new VAV terminal units with hot water reheat, piping, ductwork, and air terminals as indicated.

c. HVAC service to the second floor area is not to be impacted during any normal business hours.

4. Drawing M8.3 – See attached, new Drawing M8.3.a. Add hot water riser diagrams to reference connection of new coils to existing hot

water main piping.

DelDOT Phase II Renovations of 2

Delaware • Maryland • Rhode Island

b. Add water piping and TAB work as described above to be included in “Proposal No. 1.”

c. Add typical piping details and Typical VAV Terminal Unit Controls Schematic and Sequence of Operation.

5. Drawing E9.5 – See attached, revised Drawing E9.5. a. Delete power circuits for new electric duct heaters.b. Add new power circuits for HVAC equipment as indicated.

6. Drawing E9.11 – See attached sketch SK-E.5.a. Revise panel schedules as indicated.

Changes to Specifications1. 23 21 13 Hydronic Piping – See attached revised specification with deleted ‘Flow

Controls’.2. 23 21 14 Hydronic Specialties – See attached revised specification with deleted

‘Combination Flow Controls’ and added ‘Balancing Valves’.3. 23 36 00 Air Terminal Units – See attached newly added section.

MC5511000018 Phase II Renovation and OCR ComplianceNovember 1, 2018 Dover, DE

StudioJAED Architects & EngineersProject No. 18015

HYDRONIC PIPING23 21 13 - 1

SECTION 23 21 13HYDRONIC PIPING

PART 1 GENERAL1.01 SECTION INCLUDES

A. Hydronic system requirements.B. Heating water piping, above grade.C. Chilled water piping, above grade.D. Pipe and pipe fittings for:

1. Heating water piping system.2. Equipment drains and overflows.

E. Pipe hangers and supports.F. Unions, flanges, mechanical couplings, and dielectric connections.G. Valves:

1. Gate valves.2. Globe or angle valves.3. Ball valves.4. Plug valves.5. Butterfly valves.6. Check valves.

1.02 RELATED REQUIREMENTSA. Section 09 90 00 - Painting and Coating.B. Section 23 05 53 - Identification for HVAC Piping and Equipment.C. Section 23 07 19 - HVAC Piping Insulation.D. Section 23 21 14 - Hydronic Specialties.E. Section 23 25 00 - HVAC Water Treatment: Pipe cleaning.

1.03 REFERENCE STANDARDSA. ASME BPVC-IX - Boiler and Pressure Vessel Code, Section IX - Welding, Brazing, and Fusing

Procedures; Welders; Brazers; and Welding, Brazing and Fusing Operators.B. ASME B16.3 - Malleable Iron Threaded Fittings: Classes 150 and 300.C. ASME B16.3 - Malleable Iron Threaded Fittings; The American Society of Mechanical

Engineers.D. ASME B16.18 - Cast Copper Alloy Solder Joint Pressure Fittings.E. ASME B16.22 - Wrought Copper and Copper Alloy Solder-Joint Pressure Fittings.F. ASME B31.5 - Refrigeration Piping and Heat Transfer Components.G. ASME B31.9 - Building Services Piping.H. ASME B16.22 - Wrought Copper and Copper Alloy Solder Joint Pressure Fittings; The

American Society of Mechanical Engineers.I. ASME B31.5 - Refrigeration Piping and Heat Transfer Components; The American Society of

Mechanical Engineers.J. ASME B31.9 - Building Services Piping; The American Society of Mechanical Engineers

(ANSI/ASME B31.9).K. ASTM A53/A53M - Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated,

Welded and Seamless.

Phase II Renovation and OCR Compliance MC5511000018Dover, DE November 1, 2018

HYDRONIC PIPING StudioJAED Architects & Engineers23 21 13 - 2 Project No. 18015

L. ASTM A183 - Standard Specification for Carbon Steel Track Bolts and Nuts.M. ASTM A234/A234M - Standard Specification for Piping Fittings of Wrought Carbon Steel and

Alloy Steel for Moderate and High Temperature Service.N. ASTM B32 - Standard Specification for Solder Metal.O. ASTM B88 - Standard Specification for Seamless Copper Water Tube.P. ASTM B88M - Standard Specification for Seamless Copper Water Tube (Metric).Q. ASTM D1785 - Standard Specification for Poly(Vinyl Chloride) (PVC) Plastic Pipe, Schedules

40, 80, and 120.R. ASTM D2241 - Standard Specification for Poly (Vinyl Chloride) (PVC) Pressure-Rated Pipe

(SDR Series).S. ASTM D2466 - Standard Specification for Poly(Vinyl Chloride) (PVC) Plastic Pipe Fittings,

Schedule 40.T. ASTM D2467 - Standard Specification for Poly(Vinyl Chloride) (PVC) Plastic Pipe Fittings,

Schedule 80.U. ASTM D2855 - Standard Practice for the Two-Step (Primer & Solvent Cement) Method of

Joining Poly (Vinyl Chloride) (PVC) or Chlorinated Poly (Vinyl Chloride) (CPVC) Pipe and PipingComponents with Tapered Sockets.

V. ASTM F708 - Standard Practice for Design and Installation of Rigid Pipe Hangers.W. ASTM F1476 - Standard Specification for Performance of Gasketed Mechanical Couplings for

Use in Piping Applications.X. AWS A5.8M/A5.8 - Specification for Filler Metals for Brazing and Braze Welding.Y. AWS A5.8/A5.8M - Specification for Filler Metals for Brazing and Braze Welding.Z. AWS A5.8/A5.8M - Specification for Filler Metals for Brazing and Braze Welding; American

Welding Society.AA. AWS D1.1/D1.1M - Structural Welding Code - Steel.AB. AWWA C606 - Grooved and Shouldered Joints.AC. MSS SP-58 - Pipe Hangers and Supports - Materials, Design, Manufacture, Selection,

Application, and Installation.1.04 SYSTEM DESCRIPTION

A. Where more than one piping system material is specified, ensure system components arecompatible and joined to ensure the integrity of the system is not jeopardized. Providenecessary joining fittings. Ensure flanges, union, and couplings for servicing are consistentlyprovided.

B. Use unions, flanges, and couplings downstream of valves and at equipment or apparatusconnections. Do not use direct welded or threaded connections to valves, equipment or otherapparatus.

C. Use non-conducting dielectric connections whenever jointing dissimilar metals.D. Provide pipe hangers and supports in accordance with ASME B31.9 unless indicated otherwise.E. Use gate or ball valves for shut-off and to isolate equipment, part of systems, or vertical risers.F. Use globe or butterfly valves for throttling, bypass, or manual flow control services.G. Use 3/4 inch gate or ball valves with cap for drains at main shut-off valves, low points of piping,

bases of vertical risers, and at equipment. Pipe to nearest floor drain.




1.05 SUBMITTALSA. See Section 01 33 00 - Administrative Requirements, for submittal procedures.B. Product Data: Include data on pipe materials, pipe fittings, valves, and accessories. Provide

manufacturers catalogue information. Indicate valve data and ratings.C. Welders Certificate: Include welders certification of compliance with ASME BPVC-IX.D. Manufacturer's Installation Instructions: Indicate hanging and support methods, joining

procedures.E. Project Record Documents: Record actual locations of valves.F. Maintenance Data: Include installation instructions, spare parts lists, exploded assembly views.

1.06 QUALITY ASSURANCEA. Manufacturer Qualifications: Company specializing in manufacturing products of the type

specified in this section, with minimum three years of documented experience.B. Installer Qualifications: Company specializing in performing work of the type specified in this

section, with minimum 3 years of experience.C. Welder Qualifications: Certify in accordance with ASME BPVC-IX.

1.07 REGULATORY REQUIREMENTSA. Conform to ASME B31.9 code for installation of piping system.B. Welding Materials and Procedures: Conform to ASME (BPV IX) and applicable state labor

regulations.C. Provide certificate of compliance from authority having jurisdiction, indicating approval of

welders.1.08 DELIVERY, STORAGE, AND HANDLING

A. Accept valves on site in shipping containers with labeling in place. Inspect for damage.B. Provide temporary protective coating on cast iron and steel valves.C. Provide temporary end caps and closures on piping and fittings. Maintain in place until

installation.D. Protect piping systems from entry of foreign materials by temporary covers, completing sections

of the work, and isolating parts of completed system.PART 2 PRODUCTS2.01 HYDRONIC SYSTEM REQUIREMENTS

A. Comply with ASME B31.9 and applicable federal, state, and local regulations.B. Piping: Provide piping, fittings, hangers and supports as required, as indicated, and as follows:

1. Where more than one piping system material is specified, provide joining fittings that arecompatible with piping materials and ensure that the integrity of the system is notjeopardized.

2. Use non-conducting dielectric connections whenever jointing dissimilar metals.3. Grooved mechanical joints may be used in accessible locations only.

a. Accessible locations include those exposed on interior of building, in pipe chases, andin mechanical rooms, aboveground outdoors, and as approved by Architect.

b. Grooved mechanical connections and joints comply with AWWA C606.1) Ductile Iron: Comply with ASTM A536, Grade 65-45-12.2) Steel: Comply with ASTM A106/A106M, Grade B or ASTM A53/A53M.

c. Use rigid joints unless otherwise indicated.



d. Use gaskets of molded synthetic rubber with central cavity, pressure responsiveconfiguration and complying with ASTM D2000, Grade 2CA615A15B44F17Z forcirculating medium up to maximum 230 degrees F or Grade M3BA610A15B44Z forcirculating medium up to maximum 200 degrees F.

e. Provide steel coupling nuts and bolts complying with ASTM A183.4. Provide pipe hangers and supports in accordance with ASME B31.9 or MSS SP-58 unless

indicated otherwise.C. Pipe-to-Valve and Pipe-to-Equipment Connections: Use flanges or unions to allow

disconnection of components for servicing; do not use direct welded, soldered, or threadedconnections.

D. Valves: Provide valves where indicated and as follows:1. Provide drain valves where indicated, and if not indicated provide at least at main shut-off,

low points of piping, bases of vertical risers, and at equipment. Use 3/4 inch gate valveswith cap; pipe to nearest floor drain.

2. Isolate equipment using butterfly valves with lug end flanges or grooved mechanicalcouplings.

3. For throttling, bypass, or manual flow control services, use globe, ball, or butterfly valves.4. For shut-off and to isolate parts of systems or vertical risers, use gate, ball, or butterfly

valves.5. For throttling service, use plug cocks. Use non-lubricated plug cocks only when shut-off or

isolating valves are also provided.2.02 HEATING WATER PIPING, ABOVE GRADE

A. Steel Pipe: ASTM A53/A53M, Schedule 40, black, using one of the following joint types:1. Welded Joints: ASTM A234/A234M, wrought steel welding type fittings; AWS D1.1/D1.1M

welded.2. Threaded Joints: ASME B16.3, malleable iron fittings.3. Grooved Joints: AWWA C606 grooved pipe, fittings of same material, and mechanical

couplings.4. Fittings: ASTM B 16.3, malleable iron or ASTM A 234/A 234M, wrought steel welding type

fittings.5. Joints: Threaded, or AWS D1.1 welded.

B. Copper Tube: ASTM B88 (ASTM B88M), Type K (A), drawn, using one of the following jointtypes:1. Solder Joints: ASME B16.18 cast brass/bronze or ASME B16.22 solder wrought copper

fittings.a. Solder: ASTM B32 lead-free solder, HB alloy (95-5 tin-antimony) or tin and silver.b. Braze: AWS A5.8M/A5.8 BCuP copper/silver alloy.c. Braze: 1 BCuP copper/silver alloy.

2. Tee Connections: Mechanically extracted collars with notched and dimpled branch tube.3. Mechanical Press Sealed Fittings: Double pressed type complying with ASME B16.22,

utilizing EPDM, nontoxic synthetic rubber sealing elements.a. Manufacturers:

1) Grinnell Products, a Tyco Business: www.grinnell.com.2) Viega LLC: www.viega.com.3) Substitutions: See Section 01 60 00 - Product Requirements.

2.03 CHILLED WATER PIPING, ABOVE GRADEA. Steel Pipe: ASTM A53/A53M, Schedule 40, black; using one of the following joint types:

1. Welded Joints: ASTM A234/A234M, wrought steel welding type fittings; AWS D1.1/D1.1Mwelded.




2. Grooved Joints: AWWA C606 grooved pipe, fittings of same material, and mechanicalcouplings.

B. Steel Pipe Sizes 12 Inch and Over: ASTM A53/A53M, 0.375 inch wall, black; using one of thefollowing joint types:1. Welded Joints: ASTM A234/A234M, wrought steel welding type fittings; AWS D1.1/D1.1M

welded.2. Grooved Joints: AWWA C606 grooved pipe, fittings of same material, and mechanical

couplings.C. Copper Tube: ASTM B88 (ASTM B88M), Type K (A), hard drawn; using one of the following

joint types:1. Solder Joints: ASME B16.18 cast brass/bronze or ASME B16.22, solder wrought copper

fittings.a. Solder: ASTM B32 lead-free solder, HB alloy (95-5 tin-antimony) or tin and silver.

2. Grooved Joints: AWWA C606 grooved tube, fittings of same material, andcopper-tube-dimension mechanical couplings.

3. Tee Connections: Mechanically extracted collars with notched and dimpled branch tube.4. Mechanical Press Sealed Fittings: Double pressed type complying with ASME B16.22,

utilizing EPDM, nontoxic synthetic rubber sealing elements.a. Manufacturers:

1) Grinnell Products, a Tyco Business: www.grinnell.com.2) Viega LLC: www.viega.com.

2.04 EQUIPMENT DRAINS AND OVERFLOWSA. Copper Tube: ASTM B88 (ASTM B88M), Type K (A), drawn; using one of the following joint

types:1. Solder Joints: ASME B16.18 cast brass/bronze or ASME B16.22 solder wrought copper

fittings; ASTM B32 lead-free solder, HB alloy (95-5 tin-antimony) or tin and silver.2. Grooved Joints: AWWA C606 grooved pipe, fittings of same material, and mechanical

couplings.3. Joints: Solder, lead free, ASTM B 32, HB alloy (95-5 tin-antimony), or tin and silver.

B. PVC Pipe: ASTM D1785, Schedule 40, or ASTM D2241, SDR 21 or 26.1. Fittings: ASTM D2466 or D2467, PVC.2. Joints: Solvent welded in accordance with ASTM D2855.

2.05 PIPE HANGERS AND SUPPORTSA. Provide hangers and supports that comply with MSS SP-58.

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

B. Conform to ASME B31.9.C. Hangers for Pipe Sizes 1/2 to 1-1/2 Inch: Malleable iron, adjustable swivel, split ring.D. Hangers for Cold Pipe Sizes 2 Inches and Over: Carbon steel, adjustable, clevis.E. Hangers for Hot Pipe Sizes 2 to 4 Inches: Carbon steel, adjustable, clevis.F. Hangers for Hot Pipe Sizes 6 Inches and Over: Adjustable steel yoke, cast iron roll, double

hanger.G. Multiple or Trapeze Hangers: Steel channels with welded spacers and hanger rods.H. Multiple or Trapeze Hangers for Hot Pipe Sizes 6 Inches and Over: Steel channels with welded

spacers and hanger rods, cast iron roll.I. Wall Support for Pipe Sizes to 3 Inches: Cast iron hook.J. Wall Support for Pipe Sizes 4 Inches and Over: Welded steel bracket and wrought steel clamp.



K. Wall Support for Hot Pipe Sizes 6 Inches and Over: Welded steel bracket and wrought steelclamp with adjustable steel yoke and cast iron roll.

L. Vertical Support: Steel riser clamp.M. Floor Support for Cold Pipe: Cast iron adjustable pipe saddle, lock nut, nipple, floor flange, and

concrete pier or steel support.N. Floor Support for Hot Pipe Sizes to 4 Inches: Cast iron adjustable pipe saddle, lock nut, nipple,

floor flange, and concrete pier or steel support.O. Floor Support for Hot Pipe Sizes 6 Inches and Over: Adjustable cast iron roll and stand, steel

screws, and concrete pier or steel support.P. Copper Pipe Support: Carbon steel ring, adjustable, copper plated.Q. Hanger Rods: Mild steel threaded both ends, threaded one end, or continuous threaded.R. 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; sizeinserts to suit threaded hanger rods.

2.06 UNIONS, FLANGES, MECHANICAL COUPLINGS, AND DIELECTRIC CONNECTIONSA. Unions for Pipe 2 Inches and Under:

1. Ferrous Piping: 150 psig malleable iron, threaded.2. Copper Pipe: Bronze, soldered joints.

B. Flanges for Pipe Over 2 Inches:1. Ferrous Piping: 150 psig forged steel, slip-on.2. Copper Piping: Bronze.3. Gaskets: 1/16 inch thick preformed neoprene.

C. Grooved and Shouldered Pipe End Couplings:1. Dimensions and Testing: In accordance with AWWA C606.2. Mechanical Couplings: Comply with ASTM F1476.3. Housing Clamps: Malleable iron galvanized to engage and lock, designed to permit some

angular deflection, contraction, and expansion.4. Gasket Material: EPDM suitable for operating temperature range from -30 degrees F to

230 degrees F.5. Bolts and Nuts: Hot dipped galvanized or zinc-electroplated steel.6. When pipe is field grooved, provide coupling manufacturer's grooving tools.

D. Dielectric Connections: Union with galvanized or plated steel threaded end, copper solder end,water impervious isolation barrier.

2.07 GATE VALVESA. Manufacturers:

1. Conbraco Industries: www.apollovalves.com.2. Nibco, Inc: www.nibco.com.3. Milwaukee Valve Company: www.milwaukeevalve.com.4. Substitutions: See Section 01 60 00 - Product Requirements.

B. Up To and Including 2 Inches:1. Bronze body, bronze trim, screwed bonnet, non-rising stem, lockshield stem, inside screw

with backseating stem, solid wedge disc, alloy seat rings, solder or threaded ends.C. Over 2 Inches:

1. Iron body, bronze trim, bolted bonnet, rising stem, handwheel, outside screw and yoke,solid wedge disc with bronze seat rings, flanged ends.




2.08 GLOBE OR ANGLE VALVESA. Manufacturers:

1. Conbraco Industries: www.apollovalves.com.2. Nibco, Inc: www.nibco.com.3. Milwaukee Valve Company: www.milwaukeevalve.com.4. Substitutions: See Section 01 60 00 - Product Requirements.

B. Up To and Including 2 Inches:1. Bronze body, bronze trim, screwed bonnet, rising stem and handwheel, inside screw with

backseating stem, renewable composition disc and bronze seat, solder or threaded ends.C. Over 2 Inches:

1. Iron body, bronze trim, bolted bonnet, rising stem, handwheel, outside screw and yoke,rotating plug-type disc with renewable seat ring and disc, flanged ends.

2.09 BALL VALVESA. Manufacturers:

1. Conbraco Industries: www.apollovalves.com.2. Nibco, Inc: www.nibco.com.3. Victaulic Company: www.victaulic.com.4. Milwaukee Valve Company: www.milwaukeevalve.com.5. Substitutions: See Section 01 60 00 - Product Requirements.

B. Up To and Including 2 Inches:1. Bronze one piece body, chrome plated brass ball, teflon seats and stuffing box ring, lever

handle with balancing stops, solder ends with union.C. Over 2 Inches:

1. Cast steel body, chrome plated steel ball, teflon seat and stuffing box seals, lever handle,flanged.

2.10 PLUG VALVESA. Manufacturers:

1. Conbraco Industries: www.apollovalves.com.2. Nibco, Inc: www.nibco.com.3. Victaulic Company: www.victaulic.com.4. Milwaukee Valve Company: www.milwaukeevalve.com.5. Substitutions: See Section 01 60 00 - Product Requirements.

B. Up To and Including 2 Inches:1. Bronze body, bronze tapered plug, 40 percent port opening, non-lubricated, teflon packing,

threaded ends.2. Operator: One plug valve wrench for every ten plug valves minimum of one.

C. Over 2 Inches:1. Cast iron body and plug, 40 percent port opening, pressure lubricated, teflon packing,

flanged ends.2. Operator: Each plug valve with a wrench with set screw.

2.11 BUTTERFLY VALVESA. Manufacturers:

1. Hammond Valve: www.hammondvalve.com.2. Crane Co.: www.cranevalve.com.3. Victaulic Company: www.victaulic.com.4. Milwaukee Valve Company: www.milwaukeevalve.com.5. Substitutions: See Section 01 60 00 - Product Requirements.



B. Body: Cast or ductile iron with resilient replaceable EPDM seat, wafer, lug, or grooved ends,extended neck.

C. Disc: Construct of aluminum bronze, chrome plated ductile iron, stainless steel, ductile iron withEPDM enscapsulation, or Buna-N enscapsulation.

D. Body: Cast or ductile iron with resilient replaceable EPDM seat, wafer or lug ends, extendedneck.

E. Disc: Aluminum bronze.F. Operator: Infinite position lever handle with memory stop.

2.12 SWING CHECK VALVESA. Manufacturers:

1. Hammond Valve: www.hammondvalve.com.2. Nibco, Inc: www.nibco.com.3. Victaulic Company: www.victaulic.com.4. Milwaukee Valve Company: www.milwaukeevalve.com.5. Substitutions: See Section 01 60 00 - Product Requirements.

B. Up To and Including 2 Inches:1. Bronze body, bronze trim, bronze rotating swing disc, with composition disc, solder or

threaded ends.C. Over 2 Inches:

1. Iron body, bronze trim, stainless steel, bronze, or bronze faced rotating swing disc,renewable disc and seat, flanged or grooved ends.

2. Iron body, bronze trim, bronze or bronze faced rotating swing disc, renewable disc andseat, flanged ends.

2.13 SPRING LOADED CHECK VALVESA. Manufacturers:

1. Hammond Valve: www.hammondvalve.com.2. Crane Co.: www.cranevalve.com.3. Milwaukee Valve Company: www.milwaukeevalve.com.4. Victaulic Company: www.victaulic.com.5. Substitutions: See Section 01 60 00 - Product Requirements.

B. Iron body, bronze trim, split plate, hinged with stainless steel spring, resilient seal bonded tobody, wafer or threaded lug ends.

PART 3 EXECUTION3.01 PREPARATION

A. Ream pipe and tube ends. Remove burrs. Bevel plain end ferrous pipe.B. Prepare pipe for grooved mechanical joints as required by coupling manufacturer.C. Remove scale and dirt on inside and outside before assembly.D. Prepare piping connections to equipment using jointing system specified.E. Keep open ends of pipe free from scale and dirt. Protect open ends with temporary plugs or

caps.F. After completion, fill, clean, and treat systems. Refer to Section 23 25 00 for additional

requirements.3.02 INSTALLATION

A. Install in accordance with manufacturer's instructions.




B. Install heating water, glycol, chilled water, condenser water, and engine exhaust piping torequirements. Install chilled water piping to ASME B31.5 requirements.

C. Route piping in orderly manner, parallel to building structure, and maintain gradient.D. Install piping to conserve building space and to avoid interfere with use of space.E. Group piping whenever practical at common elevations.F. Sleeve pipe passing through partitions, walls and floors.G. Slope piping and arrange to drain at low points.H. Install piping to allow for expansion and contraction without stressing pipe, joints, or connected

equipment. Refer to Section 22 05 16.I. Inserts:

1. Provide inserts for placement in concrete formwork.2. Provide inserts for suspending hangers from reinforced concrete slabs and sides of

reinforced concrete beams.3. Provide hooked rod to concrete reinforcement section for inserts carrying pipe over 4

inches.4. Where concrete slabs form finished ceiling, locate inserts flush with slab surface.5. Where inserts are omitted, drill through concrete slab from below and provide through-bolt

with recessed square steel plate and nut above slab.J. Pipe Hangers and Supports:

1. Install in accordance with ASME B31.9, ASTM F708, or MSS SP-58.2. Install hangers to provide minimum 1/2 inch space between finished covering and adjacent

work.3. Place hangers within 12 inches of each horizontal elbow.4. Use hangers with 1-1/2 inch minimum vertical adjustment. Design hangers for pipe

movement without disengagement of supported pipe.5. Support vertical piping at every floor. Support riser piping independently of connected

horizontal piping.6. Where several pipes can be installed in parallel and at same elevation, provide multiple or

trapeze hangers.7. Provide copper plated hangers and supports for copper piping.8. Prime coat exposed steel hangers and supports. Refer to Section 09 90 00. Hangers and

supports located in crawl spaces, pipe shafts, and suspended ceiling spaces are notconsidered exposed.

K. Provide clearance in hangers and from structure and other equipment for installation ofinsulation and access to valves and fittings. Refer to Section 23 07 19.

L. Provide access where valves and fittings are not exposed. M. Where pipe support members are welded to structural building framing, scrape, brush clean,

and apply one coat of zinc rich primer to welds.N. Prepare unfinished pipe, fittings, supports, and accessories, ready for finish painting. Refer to

Section 09 90 00.O. Install valves with stems upright or horizontal, not inverted.

3.03 SCHEDULESA. Hanger Spacing for Copper Tubing.

1. 1/2 inch and 3/4 inch: Maximum span, 5 feet; minimum rod size, 1/4 inch.2. 1 inch: Maximum span, 6 feet; minimum rod size, 1/4 inch.3. 1-1/2 inch and 2 inch: Maximum span, 8 feet; minimum rod size, 3/8 inch.4. 2-1/2 inch: Maximum span, 9 feet; minimum rod size, 3/8 inch.



5. 3 inch: Maximum span, 10 feet; minimum rod size, 3/8 inch.6. 4 inch: Maximum span, 12 feet; minimum rod size, 1/2 inch.7. 6 inch: Maximum span, 14 feet; minimum rod size, 1/2 inch.8. 8 inch: Maximum span, 16 feet; minimum rod size, 5/8 inch.9. 10 inch: Maximum span, 18 feet; minimum rod size, 3/4 inch.10. 12 inch: Maximum span, 19 feet; minimum rod size, 7/8 inch.

B. Hanger Spacing for Steel Piping.1. 1/2 inch, 3/4 inch, and 1 inch: Maximum span, 7 feet; minimum rod size, 1/4 inch.2. 1-1/4 inches: Maximum span, 8 feet; minimum rod size, 3/8 inch.3. 1-1/2 inches: Maximum span, 9 feet; minimum rod size, 3/8 inch.4. 2 inches: Maximum span, 10 feet; minimum rod size, 3/8 inch.5. 2-1/2 inches: Maximum span, 11 feet; minimum rod size, 3/8 inch.6. 3 inches: Maximum span, 12 feet; minimum rod size, 3/8 inch.7. 4 inches: Maximum span, 14 feet; minimum rod size, 1/2 inch.8. 6 inches: Maximum span, 17 feet; minimum rod size, 1/2 inch.9. 8 inches: Maximum span, 19 feet; minimum rod size, 5/8 inch.10. 10 inches: Maximum span, 20 feet; minimum rod size, 3/4 inch.11. 12 inches: Maximum span, 23 feet; minimum rod size, 7/8 inch.12. 14 inches: Maximum span, 25 feet; minimum rod size, 1 inch.13. 16 inches: Maximum span, 27 feet; minimum rod size, 1 inch.14. 18 inches: Maximum span, 28 feet; minimum rod size, 1-1/4 inch.15. 20 inches: Maximum span, 30 feet; minimum rod size, 1-1/4 inch.

C. Hanger Spacing for Plastic Piping.1. 1/2 inch: Maximum span, 42 inches; minimum rod size, 1/4 inch.2. 3/4 inch: Maximum span, 45 inches; minimum rod size, 1/4 inch.3. 1 inch: Maximum span, 51 inches; minimum rod size, 1/4 inch.4. 1-1/4 inches: Maximum span, 57 inches; minimum rod size, 3/8 inch.5. 1-1/2 inches: Maximum span, 63 inches; minimum rod size, 3/8 inch.6. 2 inches: Maximum span, 69 inches; minimum rod size, 3/8 inch.7. 3 inches: Maximum span, 7 feet; minimum rod size, 3/8 inch.8. 4 inches: Maximum span, 8 feet; minimum rod size, 1/2 inch.9. 6 inches: Maximum span, 10 feet; minimum rod size, 1/2 inch.10. 8 inches: Maximum span, 11 feet; minimum rod size, 5/8 inch.11. 10 inches: Maximum span, 13 feet; minimum rod size, 3/4 inch.12. 12 inches: Maximum span, 14 feet; minimum rod size, 7/8 inch.13. 14 inches: Maximum span, 15 feet; minimum rod size, 1 inch.14. 16 inches: Maximum span, 16 feet; minimum rod size, 1 inch.15. 18 inches: Maximum span, 18 feet; minimum rod size, 1-1/4 inch.

END OF SECTION



HYDRONIC SPECIALTIES23 21 14 - 1

SECTION 23 21 14HYDRONIC SPECIALTIES


A. Air vents.B. Strainers.C. Balancing valves.D. Flow indicators and controls.

1.02 RELATED REQUIREMENTSA. Section 23 21 13 - Hydronic Piping.B. Section 23 25 00 - HVAC Water Treatment: Pipe Cleaning.

1.03 SUBMITTALSA. See Section 01 33 00 - Administrative Requirements, for submittal procedures.B. Product Data: Provide product data for manufactured products and assemblies required for this

project. Include component sizes, rough-in requirements, service sizes, and finishes. Includeproduct description, model and dimensions.

C. Certificates: Inspection certificates for pressure vessels from authority having jurisdiction.D. Manufacturer's Installation Instructions: Indicate hanging and support methods, joining

procedures.E. Project Record Documents: Record actual locations of flow controls.F. Maintenance Data: Include installation instructions, assembly views, lubrication instructions,

and replacement parts list.1.04 QUALITY ASSURANCE

A. Manufacturer Qualifications: Company specializing in manufacturing the type of productsspecified in this section, with minimum three years of documented experience.

1.05 DELIVERY, STORAGE, AND HANDLINGA. Accept valves on site in shipping containers with labeling in place. Inspect for damage.B. Provide temporary end caps and closures on piping and fittings. Maintain in place until

installation.C. Protect piping systems from entry of foreign materials by temporary covers, completing sections

of the work, and isolating parts of completed system.PART 2 PRODUCTS2.01 AIR VENTS

A. Manufacturers:1. Armstrong International, Inc: www.armstronginternational.com/#sle.2. ITT Bell & Gossett: www.bellgossett.com/#sle.3. Taco, Inc: www.taco-hvac.com/#sle.4. Substitutions: See Section 01 60 00 - Product Requirements.

B. Manual Type: Short vertical sections of 2 inch diameter pipe to form air chamber, with 1/8 inchbrass needle valve at top of chamber.

C. Float Type:


HYDRONIC SPECIALTIES StudioJAED Architects & Engineers23 21 14 - 2 Project No. 18015

1. Brass or semi-steel body, copper, polypropylene, or solid non-metallic float, stainless steelvalve and valve seat; suitable for system operating temperature and pressure; withisolating valve.

2. Cast iron body and cover, float, bronze pilot valve mechanism suitable for systemoperating temperature and pressure; with isolating valve.

D. Washer Type:1. Brass with hygroscopic fiber discs, vent ports, adjustable cap for manual shut-off, and

integral spring loaded ball check valve.2.02 STRAINERS

A. Manufacturers:1. Armstrong International, Inc: www.armstronginternational.com/#sle.2. Green Country Filtration: greencountryfiltration.com.3. WEAMCO: www.weamco.com.4. Substitutions: See Section 01 60 00 - Product Requirements.

B. Size 2 inch and Under:1. Screwed brass or iron body for 175 psi working pressure, Y pattern with 1/32 inch stainless

steel perforated screen.C. Size 2-1/2 inch to 4 inch:

1. Flanged iron body for 175 psi working pressure, Y pattern with 3/64 inch stainless steelperforated screen.

D. Size 5 inch and Larger:1. Flanged iron body for 175 psi working pressure, basket pattern with 1/8 inch stainless steel

perforated screen.2.03 BALANCING VALVES

A. Manufacturers:1. Armstrong International, Inc: www.armstronginternational.com.2. ITT Bell & Gossett: www.bellgossett.com.3. Taco, Inc: www.taco-hvac.com.

B. Size 2 inch and Smaller:1. Provide ball or globe style with manual flow balancing, flow measurement, and shut-off

capabilities, memory stops, minimum of two metering ports and NPT threaded or solderedconnections.

2. Metal construction materials consist of bronze or brass.3. Non-metal construction materials consist of Teflon or EPDM.

PART 3 EXECUTION3.01 INSTALLATION

A. Install specialties in accordance with manufacturer's instructions.B. Where large air quantities can accumulate, provide enlarged air collection standpipes.C. Provide manual air vents at system high points and as indicated.D. For automatic air vents in ceiling spaces or other concealed locations, provide vent tubing to

nearest drain.E. Provide pump suction fitting on suction side of base mounted centrifugal pumps . Remove

temporary strainers after cleaning systems.F. Provide combination pump discharge valve on discharge side of base mounted centrifugal

pumps .G. Support pump fittings with floor mounted pipe and flange supports.



HYDRONIC SPECIALTIES23 21 14 - 3

H. Provide relief valves on pressure tanks, low pressure side of reducing valves, heat exchangers,and expansion tanks.

I. Select system relief valve capacity so that it is greater than make-up pressure reducing valvecapacity. Select equipment relief valve capacity to exceed rating of connected equipment.

J. Pipe relief valve outlet to nearest floor drain.K. Where one line vents several relief valves, make cross sectional area equal to sum of individual

vent areas.END OF SECTION



AIR TERMINAL UNITS23 36 00 - 1

SECTION 23 36 00AIR TERMINAL UNITS


A. Variable volume terminal units.1.02 RELATED REQUIREMENTS

A. Section 23 31 00 - HVAC Ducts and Casings.B. Section 23 33 00 - Air Duct Accessories.C. Section 23 37 00 - Air Outlets and Inlets.D. Section - Instrumentation and Control Devices for HVAC: Thermostats and Actuators.

1.03 REFERENCE STANDARDSA. NFPA 90A - Standard for the Installation of Air-Conditioning and Ventilating Systems.B. UL 181 - Standard for Factory-Made Air Ducts and Air Connectors.

1.04 SUBMITTALSA. See Section 01 33 00 - Administrative Requirements for submittal procedures.B. Product Data: Provide data indicating configuration, general assembly, and materials used in

fabrication. Include catalog performance ratings that indicate air flow, static pressure, and NCdesignation. Include electrical characteristics and connection requirements.

C. Shop Drawings: Indicate configuration, general assembly, and materials used in fabrication,and electrical characteristics and connection requirements.

D. Manufacturer's Installation Instructions: Indicate support and hanging details, and serviceclearances required.

E. Project Record Documents: Record actual locations of units.F. Operation and Maintenance Data: Include manufacturer's descriptive literature, operating

instructions, maintenance and repair data, and parts lists. Include directions for resettingconstant volume regulators.

G. Warranty: Submit manufacturer warranty and ensure forms have been completed in Owner'sname and registered with manufacturer.

1.05 QUALITY ASSURANCEA. Manufacturer Qualifications: Company specializing in manufacturing the type of products

specified in this section, with minimum three years of documented experience.B. Products Requiring Electrical Connection: Listed and classified by Underwriters Laboratories

Inc. as suitable for the purpose specified and indicated.1.06 WARRANTY

A. See Section 01 77 00 - Closeout Submittals, for additional warranty requirements.B. Provide five year manufacturer warranty for air terminal units.

PART 2 PRODUCTS2.01 MANUFACTURERS

A. Daikin: www.daikin.com.B. JCI: www.johnsoncontrols.com.C. Enviro-Tec: www.enviro-tec.com.D. Substitutions: See Section 01 60 00 - Product Requirements.


AIR TERMINAL UNITS StudioJAED Architects & Engineers23 36 00 - 2 Project No. 18015

2.02 MANUFACTURED UNITSA. Ceiling mounted variable air volume supply air control terminals for connection to single duct,

central air systems, with electronic variable volume controls,, hot water heating coils.B. Identify each terminal unit with clearly marked identification label and air flow indicator. Include

unit nominal air flow, maximum factory set airflow, minimum factory set air flow, and coil type.2.03 SINGLE DUCT VARIABLE VOLUME UNITS

A. Basic Assembly:1. Casings: Minimum 22 gage galvanized steel.2. Lining: Minimum 1/2 inch thick foil coated or vinyl coated fibrous glass insulation, 1.5 lb/cu

ft density, meeting NFPA 90A requirements and UL 181 erosion requirements. 3. Plenum Air Inlets: S slip and drive connections for duct attachment.4. Plenum Air Outlets: S slip and drive connections.

B. Basic Unit:1. Configuration: Air volume damper assembly inside unit casing. Locate control

components inside protective metal shroud.2. Control Transformer: Provide 24V transformer for ATC interface.3. Volume Damper: Construct of galvanized steel with peripheral gasket and self lubricating

bearings; maximum damper leakage: 2 percent of design air flow at 1 inches rated inletstatic pressure.

4. Mount damper operator to position damper normally open.C. Hot Water Heating Coil:

1. Construction: 1/2 inch copper tube mechanically expanded into aluminum plate fins, leaktested under water to 200 psig pressure, factory installed. Reheat coils are to haveminimum two rows, single-row reheat coils are not acceptable.

D. Automatic Damper Operator:1. Electric Actuator: See schedules.

E. Flow Sensor:1. Center-mount averaging flow sensor with plenum-rated tubing.

PART 3 EXECUTION3.01 INSTALLATION

A. Install in accordance with manufacturer's instructions.B. Support units individually from structure. Do not support from adjacent ductwork.C. Connect to ductwork in accordance with Section 23 31 00.D. Verify that electric power is available and of the correct characteristics.

3.02 ADJUSTINGA. Reset volume with damper operator attached to assembly allowing flow range modulation from

100 percent of design flow to 0 percent full flow. END OF SECTION