ASHRAE STD 15 & 34
Safety Standard for Refrigeration Systems
|Publication Date:||1 September 2020|
Addendum c proposes changes to allow the use of equipment using small amounts of non-A1 refrigerants only if they are listed to appropriate product safety standards. The proposal is consistent with research findings and the published requirements of product safety standards such as UL 484 and UL 60335-2-40.
Note: In this addendum, changes to the current standard are indicated in the text by underlining (for additions) and (for deletions) unless the instructions specifically mention some other means of indicating the changes.