Working on Refrigerant Circuit

Working on Refrigerant Circuit

Work on refrigerant system should only be performed in a ventilated rooms (workshops). Ensure that within 5 meters circumference are no working-pits, basement staircases or shafts. Extraction systems are to be switched on.

Reason:

The refrigerant emerging is not only colorless and odorless, but also heavier than air and thus displaces oxygen. If refrigerant gas does escape even though all the safety precautions have been followed, there is a risk of suffocating in poorly ventilated areas and in workshop pits - even if it is not noticeable.

• The escaping refrigerant/air mixture should not be inhaled, but should be sucked out via an existing exhaust ventilation system.

Do not attempt repair on filled air conditioning systems by soldering, brazing or welding. This pertains also for welding and soldering work on the vehicle, in the event that parts of the climate control system may heat up

Reason:

Exposure to heat creates considerable pressure in the system, which could cause it to burst.

Corrective action:

Discharge refrigerant circuit, refer to => [ Refrigerant Circuit, Draining ] Refrigerant Circuit, Draining.

• Damaged or leaking parts of the air conditioner are never to be repaired by welding or soldering them; they are always to be replaced.

When servicing air conditioner, all open components and pipe connections are to be immediately re-sealed.

Reason:

Moisture will ingress into air conditioner components if they are left open for a lengthy period. An A/C system that was open for a longer period of time cannot be filled again without replacing components of the system.