Previous versions of this document are available under the Product Family tab.

This standard prescribes a method of testing capacity of thermostatic expansion valves for use in air-conditioning and refrigeration systems. This standard does not specify the test conditions to be used for obtaining the standard rating. That is done in a rating standard developed by the Air-Conditioning and Refrigeration Institute (ARI). The latest edition of ARI Standard 750 is referenced for the test conditions to be used in obtaining standard ratings for thermostatic refrigerant expanding valves. The changes made for the 2008 revision are as follows:

• references were numbered
• references were updated

Units: Dual