Operation CHARM: Car repair manuals for everyone.

Heating and Air Conditioning System

PREPARATION

PREPARATION

HFC-134a (R-134a) Service Tool and Equipment
Never mix HFC-134a refrigerant and/or its specified electric compressor oil with CFC-12 (R-12) refrigerant and/or its electric compressor oil.

Separate and non-interchangeable service equipment must be used for handling each type of refrigerant/electric compressor oil.

Refrigerant container fittings, service hose fittings and service equipment fittings (equipment which handles refrigerant and/or electric compressor oil) are different between CFC-12 (R-12) and HFC-134a (R-134a). This is to avoid mixed use of the refrigerants/electric compressor oil.

Adapters that convert one size fitting to another must never be used: refrigerant/electric compressor oil contamination will occur and electric compressor failure will result.









Commercial Service Tool

Commercial Service Tool: