A2L refrigerants require appropriate training and equipment-specific procedures. EPA lists refrigerants such as R-32, R-452B and R-454B for specified end uses with use conditions. A listing is not blanket permission for every installation or retrofit.
Before work, identify the appliance and refrigerant and consult the manufacturer instructions, safety data, applicable codes and EPA use conditions. Use qualified training to determine the necessary tools, protective equipment and service procedure. This article is not a service procedure.
FieldPad’s safety checklist is a recordkeeping aid. Record what was actually checked and retain the supporting service information. Do not treat a set of completed app checkboxes as proof that every relevant requirement has been met. Where a generic prompt does not fit the equipment instructions, resolve that difference before relying on the record.
Our earlier article described six app prompts as universally mandatory. That wording was too broad and has been corrected. The app does not certify safe work or legal compliance.
Source: EPA substitutes for residential and light-commercial air conditioning and heat pumps. Consult the linked rules for the detailed conditions of a particular substitute and end use.
