Copyright 2015 AIAMasterSpec Premium03/15

PRODUCT MASTERSPEC LICENSED BY ARCOM TO CONBRACO, INC.

Copyright 2015 by The American Institute of Architects (AIA)

Exclusively published and distributed by Architectural Computer Services, Inc. (ARCOM) for the AIA

This Product MasterSpec Section is licensed by ARCOM to Apollo Valves, Conbraco, Inc. ("Licensee").

This Product MasterSpec Section modifies the original MasterSpec text, and does not include the full content of the original MasterSpec Section.

Revisions made to the original MasterSpec text are made solely by the Licensee and are not endorsed by, or representative of the opinions of, ARCOM or The American Institute of Architects (AIA). Neither AIA nor ARCOM are liable in any way for such revisions or for the use of this Product MasterSpec Section by any end user. A qualified design professional should review and edit the document to suit project requirements.

For more information, contact Conbraco,Industries,Inc., P.O. Box 247, Matthews, NC 28105; Phone: 704-841-6000; Fax: 704-841-6020; Website: Email: .

For more information, contact Elkhart Products Corporation, 1255 Oak Street, Elkhart, IN 46514; Phone: 574-264-3181; Fax: 574-264-0103; Website: Email: .

For information about MasterSpec contact ARCOM at (800) 424-5080 or visit

SECTION 232300 - REFRIGERANT PIPING

TIPS:

To view non-printing Editor's Notes that provide guidance for editing, click on Masterworks/Single-File Formatting/Toggle/Editor's Notes.

To read detailed research, technical information about products and materials, and coordination checklists, click on Masterworks/Supporting Information.

Revise this Section by deleting and inserting text to meet Project-specific requirements.

Verify that Section titles referenced in this Section are correct for this Project's Specifications; Section titles may have changed.

PART 1 - GENERAL

1.1RELATED DOCUMENTS

Retain or delete this article in all Sections of Project Manual.

  1. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division01 Specification Sections, apply to this Section.

Verify with equipment specifications refrigeration components that are supplied and edit this Section as needed.

1.2SUMMARY

  1. Section Includes:
  2. Refrigerant pipes and fittings.
  3. Refrigerant piping valves and specialties.
  4. Refrigerants.

1.3ACTION SUBMITTALS

  1. Product Data: For each type of valve, refrigerant piping, and piping specialty.
  2. Include pressure drop, based on manufacturer's test data, for the following:
  3. Thermostatic expansion valves.
  4. Solenoid valves.
  5. Hot-gas bypass valves.
  6. Filter dryers.
  7. Strainers.
  8. Pressure-regulating valves.
  9. Sustainable Design Submittals:

"Product Data" Subparagraph below applies to LEED 2009 NC, CI, CS, and LEED for Schools; coordinate with requirements for equipment and refrigerants.

  1. Product Data: For refrigerants.
  1. Shop Drawings:

Retain one of first two subparagraphs below. Retain first if Drawings indicate pipe size and layout; retain second to have Contractor size and design refrigeration piping.

  1. Show layout of refrigerant piping and specialties, including pipe, tube, and fitting sizes; flow capacities; valve arrangements and locations; slopes of horizontal runs; oil traps; double risers; wall and floor penetrations; and equipment connection details.
  2. Show piping size and piping layout, including oil traps, double risers, specialties, and pipe and tube sizes to accommodate, as a minimum, equipment provided, elevation difference between compressor and evaporator, and length of piping to ensure proper operation and compliance with warranties of connected equipment.
  3. Show interface and spatial relationships between piping and equipment.
  4. Shop Drawing Scale: [1/4 inch equals 1 foot (1:50)] <Insert value>.

1.4INFORMATIONAL SUBMITTALS

Retain "Welding certificates" Paragraph below if retaining "Welding Qualifications" Paragraph in "Quality Assurance" Article.

  1. Welding certificates.

Retain "Field quality-control reports" Paragraph below if Contractor is responsible for field quality-control testing and inspecting.

  1. Field quality-control reports.

1.5CLOSEOUT SUBMITTALS

  1. Operation and Maintenance Data: For refrigerant valves and piping specialties to include in maintenance manuals.

1.6QUALITY ASSURANCE

Retain "Welding Qualifications" Paragraph below if shop or field welding is required. If retaining, also retain "Welding certificates" Paragraph in "Informational Submittals" Article.

  1. Welding Qualifications: Qualify procedures and personnel according to 2010 ASME Boiler and Pressure Vessel Code: SectionIX, "Welding and Brazing Qualifications."
  2. Comply with ASHRAE15, "Safety Code for Refrigeration Systems."
  3. Comply with ASMEB31.5, "Refrigeration Piping and Heat Transfer Components."

1.7PRODUCT STORAGE AND HANDLING

  1. Store piping with end caps in place to ensure that piping interior and exterior are clean when installed.

1.8WARRANTY

For complete details, please refer to our Standard Terms and Conditions and WarrantyandLimitations of Liability at:

  1. Manufacturer's Special Warranty on Domestic Products: Conbraco Industries, Inc. warrants products to be free of defects in workmanship or material for a period of five years. This warranty applies to Apollo brand products with "Made in the USA" markings only. Conbraco will correct such defects by suitable repair or replacement at Conbraco's discretion.
  2. Manufacturer's Special Warranty on International Products: APOLLO INTERNATIONAL products will be free of defects in workmanship or material for a period of two years. Conbraco will correct such defects by suitable repair or replacement at Conbraco's discretion.
  3. Elkhart Products Corporation warranties our fittings to be free from defects in materials and workmanship for a period of fifty (50) years. The Elkhart Product Corporation Water Heater hoses carry a two (2) year warranty against defects in materials and workmanship. Any fitting which proves to be defective will be replaced or a credit issued, but no incidental labor charges, expenses or damages will be allowed.

PART 2 - PRODUCTS

See Editing Instruction No.1 in the Evaluations for cautions about named manufacturers and products. For an explanation of options and Contractor's product selection procedures, see Section016000 "Product Requirements."

2.1PERFORMANCE REQUIREMENTS

If more than one type of refrigerant is required for Project, retain applicable paragraphs below and indicate on Drawings which piping circuit requires which refrigerant.

  1. Line Test Pressure for Refrigerant R-134a:
  2. Suction Lines for Air-Conditioning Applications: 115 psig (793 kPa).
  3. Suction Lines for Heat-Pump Applications: 225 psig (1551 kPa).
  4. Hot-Gas and Liquid Lines: 225 psig (1551 kPa).
  5. Line Test Pressure for Refrigerant R-407C:
  6. Suction Lines for Air-Conditioning Applications: 230 psig (1586 kPa).
  7. Suction Lines for Heat-Pump Applications: 380 psig (2620 kPa).
  8. Hot-Gas and Liquid Lines: 380 psig (2620 kPa).
  9. Line Test Pressure for Refrigerant R-410A:
  10. Suction Lines for Air-Conditioning Applications: 300 psig (2068 kPa).
  11. Suction Lines for Heat-Pump Applications: 535 psig (3689 kPa).
  12. Hot-Gas and Liquid Lines: 535 psig (3689 kPa).

Coordinate first two articles below with piping application articles in Part3. See "Writing Guide" Article in the Evaluations. Materials included in this Section are examples listed in the 2008 ASHRAE HANDBOOK - "HVAC Systems and Equipment" (Ch. 45, "Pipes, Tubes, and Fittings").

2.2COPPER TUBE AND FITTINGS

  1. Copper Tube: [ASTMB88, TypeK or L (ASTMB88M, TypeA or B)] [ASTMB280, TypeACR].
  2. Wrought-Copper Fittings: ASMEB16.22.
  3. Basis-of-Design Product: Subject to compliance with requirements, provide Elkhart Products CorporationAC-R fittings, made in USA,or comparable product by one of the following:
  4. NIBCO INC.
  5. Insert manufacturer's name>.
  6. Wrought-Copper Unions: ASMEB16.22.
  7. Basis-of-Design Product: Subject to compliance with requirements, provide Elkhart Products CorporationAC-R fittings, made in USA,or comparable product by one of the following:
  8. NIBCO INC.
  9. Insert manufacturer's name>.

See the Evaluations for discussions of solder and brazing materials.

  1. Solder Filler Metals: ASTMB32. Use 95-5 tin antimony or alloy HB solder to join copper socket fittings on copper pipe.
  2. Brazing Filler Metals: AWSA5.8/A5.8M.
  3. Flexible Connectors:
  4. Body: Tin-bronze bellows with woven, flexible, tinned-bronze-wire-reinforced protective jacket.
  5. End Connections: Socket ends.
  6. Offset Performance: Capable of minimum 3/4-inch (20-mm) misalignment in minimum 7-inch- (180-mm-) long assembly.
  7. Working Pressure Rating: Factory test at minimum 500 psig (3450 kPa).
  8. Maximum Operating Temperature: 250 degF (121 degC).

2.3STEEL PIPE AND FITTINGS

  1. Steel Pipe: ASTMA53/A53M, black steel with plain ends; type, grade, and wall thickness as selected in piping application articles.
  2. Wrought-Steel Fittings: ASTMA234/A234M, for welded joints.
  3. Steel Flanges and Flanged Fittings: ASMEB16.5, steel, including bolts, nuts, and gaskets, bevel-welded end connection, and raised face.
  4. Welding Filler Metals: Comply with AWSD10.12M/D10.12 for welding materials appropriate for wall thickness and chemical analysis of steel pipe being welded.
  5. Flanged Unions:
  6. Body: Forged-steel flanges for NPS1 to NPS1-1/2 (DN25 to DN40) and ductile iron for NPS2 to NPS3 (DN50 to DN80). Apply rust-resistant finish at factory.
  7. Gasket: Fiber asbestos free.
  8. Fasteners: Four plated-steel bolts, with silicon bronze nuts. Apply rust-resistant finish at factory.
  9. End Connections: Brass tailpiece adapters for solder-end connections to copper tubing.
  10. Offset Performance: Capable of minimum 3/4-inch (20-mm) misalignment in minimum 7-inch- (180-mm-) long assembly.
  11. Pressure Rating: Factory test at minimum 400 psig (2760 kPa).
  12. Maximum Operating Temperature: 330 degF (165 degC).
  13. Flexible Connectors:
  14. Body: Stainless-steel bellows with woven, flexible, stainless-steel-wire-reinforced protective jacket.
  15. End Connections:
  16. NPS2 (DN50) and Smaller: With threaded-end connections.
  17. NPS2-1/2 (DN65) and Larger: With flanged-end connections.
  18. Offset Performance: Capable of minimum 3/4-inch (20-mm) misalignment in minimum 7-inch- (180-mm-) long assembly.
  19. Pressure Rating: Factory test at minimum 500 psig (3450 kPa).
  20. Maximum Operating Temperature: 250 degF (121 degC).

2.4VALVES AND SPECIALTIES

  1. Diaphragm Packless Valves:
  2. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
  3. Danfoss Inc.
  4. Heldon Products; Henry Technologies.
  5. Parker Hannifin Corp.
  6. Paul Mueller Company.
  7. Insert manufacturer's name>.
  8. Body and Bonnet: Forged brass or cast bronze; globe design with straight-through or angle pattern.
  9. Diaphragm: Phosphor bronze and stainless steel with stainless-steel spring.
  10. Operator: Rising stem and hand wheel.
  11. Seat: Nylon.
  12. End Connections: Socket, union, or flanged.
  13. Working Pressure Rating: 500 psig (3450 kPa).
  14. Maximum Operating Temperature: 275 degF (135 degC).
  15. Packed-Angle Valves:
  16. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
  17. Danfoss Inc.
  18. Heldon Products; Henry Technologies.
  19. Parker Hannifin Corp.
  20. Paul Mueller Company.
  21. Insert manufacturer's name>.
  22. Body and Bonnet: Forged brass or cast bronze.
  23. Packing: Molded stem, back seating, and replaceable under pressure.
  24. Operator: Rising stem.
  25. Seat: Nonrotating, self-aligning polytetrafluoroethylene.
  26. Seal Cap: Forged-brass or valox hex cap.
  27. End Connections: Socket, union, threaded, or flanged.
  28. Working Pressure Rating: 500 psig (3450 kPa).
  29. Maximum Operating Temperature: 275 degF (135 degC).
  30. Check Valves:
  31. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
  32. Danfoss Inc.
  33. Emerson Climate Technologies.
  34. Heldon Products; Henry Technologies.
  35. Parker Hannifin Corp.
  36. Paul Mueller Company.
  37. Insert manufacturer's name>.
  38. Body: Ductile iron, forged brass, or cast bronze; globe pattern.
  39. Bonnet: Bolted ductile iron, forged brass, or cast bronze; or brass hex plug.
  40. Piston: Removable polytetrafluoroethylene seat.
  41. Closing Spring: Stainless steel.

Retain "Manual Opening Stem" Subparagraph below for optional manual opening feature.

  1. Manual Opening Stem: Seal cap, plated-steel stem, and graphite seal.
  2. End Connections: Socket, union, threaded, or flanged.
  3. Maximum Opening Pressure: 0.50 psig (3.4 kPa).
  4. Working Pressure Rating: 500 psig (3450 kPa).
  5. Maximum Operating Temperature: 275 degF (135 degC).
  1. Service Valves:
  2. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
  3. Danfoss Inc.
  4. Emerson Climate Technologies.
  5. Heldon Products; Henry Technologies.
  6. Parker Hannifin Corp.
  7. Paul Mueller Company.
  8. Refrigeration Sales, Inc.
  9. Insert manufacturer's name>.
  10. Body: Forged brass with brass cap including key end to remove core.
  11. Core: Removable ball-type check valve with stainless-steel spring.
  12. Seat: Polytetrafluoroethylene.
  13. End Connections: Copper spring.
  14. Working Pressure Rating: 500 psig (3450 kPa).

Solenoid valves in "Solenoid Valves" Paragraph below are made normally closed or normally open. Normally closed are direct acting and pilot operated. Holding coils are available in several voltages.

  1. Solenoid Valves: Comply with AHRI760 and UL429; listed and labeled by a National Recognized Testing Laboratory (NRTL).
  2. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
  3. Danfoss Inc.
  4. Emerson Climate Technologies.
  5. Heldon Products; Henry Technologies.
  6. Parker Hannifin Corp.
  7. Paul Mueller Company.
  8. Insert manufacturer's name>.
  9. Body and Bonnet: Plated steel.
  10. Solenoid Tube, Plunger, Closing Spring, and Seat Orifice: Stainless steel.
  11. Seat: Polytetrafluoroethylene.
  12. End Connections: Threaded.
  13. Electrical: Molded, watertight coil in NEMA250 enclosure of type required by location with 1/2-inch (16-GRC) conduit adapter, and [24] [115] [208]-V ac coil.
  14. Working Pressure Rating: 400 psig (2760 kPa).
  15. Maximum Operating Temperature: 240 degF (116 degC).

Retain "Safety Relief Valves" Paragraph below for optional manual opening feature.

  1. Safety Relief Valves: Comply with 2010 ASME Boiler and Pressure Vessel Code; listed and labeled by an NRTL.
  2. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
  3. Danfoss Inc.
  4. Heldon Products; Henry Technologies.
  5. Parker Hannifin Corp.
  6. Paul Mueller Company.
  7. Insert manufacturer's name>.
  8. Body and Bonnet: Ductile iron and steel, with neoprene O-ring seal.
  9. Piston, Closing Spring, and Seat Insert: Stainless steel.
  10. Seat: Polytetrafluoroethylene.
  11. End Connections: Threaded.
  12. Working Pressure Rating: 400 psig (2760 kPa).
  13. Maximum Operating Temperature: 240 degF (116 degC).
  14. Thermostatic Expansion Valves: Comply with AHRI750.
  15. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
  16. Danfoss Inc.
  17. Emerson Climate Technologies.
  18. Heldon Products; Henry Technologies.
  19. Paul Mueller Company.
  20. Insert manufacturer's name>.
  21. Body, Bonnet, and Seal Cap: Forged brass or steel.
  22. Diaphragm, Piston, Closing Spring, and Seat Insert: Stainless steel.
  23. Packing and Gaskets: Non-asbestos.
  24. Capillary and Bulb: Copper tubing filled with refrigerant charge.
  25. Suction Temperature: [40 degF (4.4 degC)] <Insert temperature>.
  26. Superheat: [Adjustable] [Nonadjustable].
  27. Reverse-flow option (for heat-pump applications).
  28. End Connections: Socket, flare, or threaded union.
  29. Working Pressure Rating: [700 psig (4820 kPa)] [450 psig (3100 kPa)] <Insert value>.
  30. Hot-Gas Bypass Valves: Comply with UL429; listed and labeled by an NRTL.
  31. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
  32. Danfoss Inc.
  33. Heldon Products; Henry Technologies.
  34. Parker Hannifin Corp.
  35. Insert manufacturer's name>.
  36. Body, Bonnet, and Seal Cap: Ductile iron or steel.
  37. Diaphragm, Piston, Closing Spring, and Seat Insert: Stainless steel.
  38. Packing and Gaskets: Non-asbestos.
  39. Solenoid Tube, Plunger, Closing Spring, and Seat Orifice: Stainless steel.
  40. Seat: Polytetrafluoroethylene.
  41. Equalizer: [Internal] [External].
  42. Electrical: Molded, watertight coil in NEMA250 enclosure of type required by location with 1/2-inch (16-GRC) conduit adapter and [24] [115] [208]-V ac coil.
  43. End Connections: Socket.
  44. Set Pressure: <Insert psig (kPa)>.
  45. Throttling Range: Maximum 5 psig (34 kPa).
  46. Working Pressure Rating: 500 psig (3450 kPa).
  47. Maximum Operating Temperature: 240 degF (116 degC).
  48. Straight-Type Strainers:
  49. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
  50. Danfoss Inc.
  51. Heldon Products; Henry Technologies.
  52. Parker Hannifin Corp.
  53. Insert manufacturer's name>.
  54. Body: Welded steel with corrosion-resistant coating.
  55. Screen: 100-mesh stainless steel.
  56. End Connections: Socket or flare.
  57. Working Pressure Rating: 500 psig (3450 kPa).
  58. Maximum Operating Temperature: 275 degF (135 degC).
  59. Angle-Type Strainers:
  60. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
  61. Danfoss Inc.
  62. Heldon Products; Henry Technologies.
  63. Parker Hannifin Corp.
  64. Insert manufacturer's name>.
  65. Body: Forged brass or cast bronze.
  66. Drain Plug: Brass hex plug.
  67. Screen: 100-mesh monel.
  68. End Connections: Socket or flare.
  69. Working Pressure Rating: 500 psig (3450 kPa).
  70. Maximum Operating Temperature: 275 degF (135 degC).
  71. Moisture/Liquid Indicators:
  72. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
  73. Danfoss Inc.
  74. Emerson Climate Technologies.
  75. Heldon Products; Henry Technologies.
  76. Parker Hannifin Corp.
  77. Insert manufacturer's name>.
  78. Body: Forged brass.
  79. Window: Replaceable, clear, fused glass window with indicating element protected by filter screen.
  80. Indicator: Color coded to show moisture content in parts per million (ppm).
  81. Minimum Moisture Indicator Sensitivity: Indicate moisture above 60 ppm.
  82. End Connections: Socket or flare.
  83. Working Pressure Rating: 500 psig (3450 kPa).
  84. Maximum Operating Temperature: 240 degF (116 degC).
  85. Replaceable-Core Filter Dryers: Comply with AHRI730.
  86. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
  87. Danfoss Inc.
  88. Emerson Climate Technologies.
  89. Heldon Products; Henry Technologies.
  90. Parker Hannifin Corp.
  91. Insert manufacturer's name>.
  92. Body and Cover: Painted-steel shell with ductile-iron cover, stainless-steel screws, and neoprene gaskets.
  93. Filter Media: 10 micron, pleated with integral end rings; stainless-steel support.
  94. Desiccant Media: Activated [alumina] [charcoal].

Retain first subparagraph below for heat pumps.

  1. Designed for reverse flow (for heat-pump applications).
  2. End Connections: Socket.

Retain "Access Ports" Subparagraph below for suction-line filter dryers.

  1. Access Ports: NPS1/4 (DN8) connections at entering and leaving sides for pressure differential measurement.
  2. Maximum Pressure Loss: [2 psig (14 kPa)] <Insert value>.
  3. Rated Flow: <Insert tons (kW)>.
  4. Working Pressure Rating: 500 psig (3450 kPa).
  5. Maximum Operating Temperature: 240 degF (116 degC).
  1. Permanent Filter Dryers: Comply with AHRI730.
  2. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
  3. Danfoss Inc.
  4. Emerson Climate Technologies.
  5. Heldon Products; Henry Technologies.
  6. Parker Hannifin Corp.
  7. Insert manufacturer's name>.
  8. Body and Cover: Painted-steel shell.
  9. Filter Media: 10 micron, pleated with integral end rings; stainless-steel support.
  10. Desiccant Media: Activated [alumina] [charcoal].

Retain first subparagraph below for heat pumps.