5.3003.5 Refrigerant Line Inspection | Standard Work Specifications for Home Energy Upgrades

Title	Specification(s)	Objective(s)
5.3003.5a Insulation See redline change(s)	All liquid refrigerant lines will be insulated to a minimum of R-4 Vapor or high side lines will not be insulated unless specified by the equipment's manufacturer Suction lines will be insulated to a minimum of R-4	Ensure refrigerant lines do not gain excessive heat
5.3003.5b Ultraviolet ( UV UV Ultraviolet ) protection of insulation	If exposed to sunlight, refrigerant line insulation will be protected from UV UV Ultraviolet degradation in accordance with manufacturer specifications, 2012 IRC IRC International Residential Code N1103.3.1, or local code	Install insulation so it does not degrade
5.3003.5c Sizing	Refrigerant lines will be sized to meet manufacturer specifications for the installed equipment	Ensure system moves appropriate volume of refrigerant
5.3003.5d Installation quality	Refrigerant lines will be installed without kinks, crimps, or excessive bends	Ensure system moves appropriate volume of refrigerant
5.3003.5e Support	Refrigerant lines will be routed, supported, and secured to house in a manner that protects the line from damage by workers or occupants	Ensure refrigerant lines do not move, vibrate, or sag Protect lines from damage

Title	Specification(s)	Objective(s)
5.3003.5a Insulation	All liquid refrigerant lines will be insulated to a minimum of R-4 Vapor or high side lines will not be insulated unless specified by the equipment's manufacturer Suction lines will be insulated to a minimum of R-4 For mixed humid, hot humid, and marine climates, heating and cooling refrigerant lines will be insulated	Ensure refrigerant lines do not gain excessive heat Prevent energy loss and condensation
5.3003.5b Ultraviolet ( UV UV Ultraviolet ) protection of insulation	If exposed to sunlight, refrigerant line insulation will be protected from UV UV Ultraviolet degradation in accordance with manufacturer specifications, 2012 IRC IRC International Residential Code N1103.3.1, or local code	Install insulation so it does not degrade
5.3003.5c Sizing	Refrigerant lines will be sized to meet manufacturer specifications for the installed equipment	Ensure system moves appropriate volume of refrigerant
5.3003.5d Installation quality	Refrigerant lines will be installed without kinks, crimps, or excessive bends	Ensure system moves appropriate volume of refrigerant
5.3003.5e Support	Refrigerant lines will be routed, supported, and secured to house in a manner that protects the line from damage by workers or occupants	Ensure refrigerant lines do not move, vibrate, or sag Protect lines from damage