Backflow Prevention Assemblies
INTERNATIONAL GROUND SOURCE HEAT PUMP ASSOCIATION (IGSHPA)
IGSHPA 21010
(1991) Grouting Procedures for
Ground-Source Heat Pump Systems
IGSHPA 21020
(1988) Closed-Loop/Ground-Source Heat Pump
System/Installation Guide
MANUFACTURERS STANDARDIZATION SOCIETY OF THE VALVE AND FITTINGS
INDUSTRY (MSS)
MSS SP-58
(2002) Pipe Hangers and Supports -
Materials, Design and Manufacture
MSS SP-67
(2002) Butterfly Valves
MSS SP-69
(2002) Pipe Hangers and Supports -
Selection and Application
MSS SP-70
(1998) Cast Iron Gate Valves, Flanged and
Threaded Ends
MSS SP-71
(1997) Gray Iron Swing Check Valves,
Flanged and Threaded Ends
MSS SP-80
(2003) Bronze Gate, Globe, Angle and Check
Valves
MSS SP-85
(2002) Cast Iron Globe & Angle Valves,
Flanged and Threaded Ends
NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)
NFPA 70
(2005) National Electrical Code
SHEET METAL AND AIR CONDITIONING CONTRACTORS' NATIONAL ASSOCIATION
(SMACNA)
SMACNA HVAC Duct Const Stds
(1995, 2nd Ed) HVAC Duct Construction
Standards - Metal and Flexible
UNDERWRITERS LABORATORIES (UL)
UL 94
(1996; Rev thru Dec 2003) Tests for
Flammability of Plastic Materials for
Parts in Devices and Appliances
1.2
SYSTEM DESCRIPTION
**************************************************************************
NOTE: Select fourth sentence for water source heat
pump systems and fifth sentence for ground source
closed loop heat pump systems.
**************************************************************************
Provide [new] [and modify existing] heat pump systems complete and ready
for operation. Systems include heat pumps, system equipment and condenser.
SECTION 15741N
Page 8
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