ASHRAE Standard 17 prescribes a method of testing the capacity of thermostatic expansion valves for use in air-conditioning and refrigeration systems. The 2015 edition of ASHRAE Standard 17 changes the refrigerant used in example calculations from R-22 to R-410A and includes updated references.NOTE: This standard does not specify test conditions. AHRI Standard 750 specifies test conditions and can be used to obtain standard ratings for thermostatic refrigerant expanding valves.
ASHRAE 17-2015 history
2024ASHRAE 17-2015 Standard 17-2015 -- Method of Testing Capacity of Thermostatic Refrigerant Expansion Valves (ANSI Approved)
2008ASHRAE 17-2008 Method of Testing Capacity of Thermostatic Refrigerant Expansion Valves
1998ASHRAE 17-1998 Method of Testing Capacity of Thermostatic Refrigerant Expansion Valves
1986ASHRAE 17-1986 Method of Testing for Capacity Rating of Thermostatic Refrigerant Expansion Valves; (Reaffirmation of ANSI/ASHRAE 17-1986 with Minor Editorial Changes) (R 1990)