Handling Refrigerant Safety Precautions

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The assemblies and piping system of the air conditioner are filled with the following refrigerant:

1.1.1.2 Tetrafluorethane (CF ₃ -CH ₂ F or CH ₂ F-CF ₃ )

Currently, this refrigerant is known under the following trade names R134a, H-FKW 134a, SUVA 134a and KLEA 134a (other trade names may be used in other countries).

The following safety measures should be observed for these refrigerants (additional guidelines apply in individual countries).

CAUTION:

Refrigerant may pose health risk!

For repair work on an open refrigerant circuit, first discharge the refrigerant circuit, refer to REFRIGERANT R134A SERVICING (1 OF 2) . (Refrigerant R134a, Servicing; Refrigerant Circuit, Using Service Station).
Only work on refrigerant circuit in well-ventilated rooms (workshops). Ensure that there are no working-pits, basement staircases or shafts within five meters of the circumference.

WARNING:

There is a risk of suffocating due to a refrigerant/air mixture after discharging refrigerant.

Switch on the exhaust gas ventilation system.
Escaping refrigerant is color- and odorless and also heavier than air, thus displacing oxygen. If refrigerant gas escapes, there is a risk of suffocating in poorly ventilated areas and in workshop pits - even if it is not noticeable.

Risk of dry coughing and nausea due to toxic chemical decomposition products from the refrigerant gas.

Do not smoke, weld, or hard- or soft-solder in areas exposed to refrigerant. The high temperature of a naked flame or hot objects causes decomposition of refrigerant gas. The resulting decomposition products are toxic.

Risk of eye injury!

Keep an eye bath on hand.
If liquid refrigerant has come in contact with your skin and eyes, immediately flush with cool water for 15 minutes.
Then apply eye drops and consult a doctor immediately even if no pain is felt.
Inform the doctor which type of refrigerant caused the freezing.

Intensive exposure to refrigerant on unprotected parts of the body will result in frostbite. Avoid contact with liquid refrigerant or refrigerant vapors!

Protect hands by wearing rubber gloves.
Protect eyes by wearing protective glasses.
If liquid refrigerant has come in contact with any other body part, immediately flush with cool water for 15 minutes.