Notes on handling refrigerant R134a - AH83.30-P-0003-01H
MODEL 240 except with A/C system with refrigerant 134a
Safety refrigerant R134a is colorless and odorless.
At normal temperatures it is neither toxic nor flammable, and will not explode in the air, no matter what its mixing ratio.
The R134a refrigerant may only be used in air conditioning systems for which R134a has been specifically approved.
The refrigerant R134a must not be mixed with other refrigerants (e.g. R12).
The refrigerant R134a does not contain any fluorocarbons (CFC). Thus, in contrast to other refrigerants, it is not harmful to the environment or to earth's ozone layer at normal temperatures.
Despite these benefits, the use of suitable equipment to discharge and process used gas and to recharge systems with new refrigerant R134a is mandatory; this equipment must include integral disposal and reprocessing capabilities.