Refrigerant Circuit Repairs

Refrigerant Circuit Repairs

Work on refrigerant system should only be performed in a ventilated rooms (workshops). Ensure that with in 5 meters (16 ft.) circumference are no working-pits, basement staircases or shafts. Switch on any exhaust extraction systems.

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 gas/air mixture that forms when the refrigerant gas escapes should not be inhaled, but should be extracted via a suitable exhaust extraction system (workshop extraction 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 enter into air conditioner components if they are left open for a lengthy period. If this is the case, air conditioners cannot be refilled without having to replace parts of the system.

• The applicable wiring diagrams are found in.

• A data plate in engine compartment indicates the refrigerant used and capacity.