Scheme 1
Note. The ambient temperature must be above 20°C when draining the system
When draining refrigerant, the recycling unit can be attached to the service valve for both the high pressure side (HP) and the low pressure side (LP) at the same time. This is the quickest method.
- The engine must be switched off
- Check the amount of oil (if any) that has run out when draining the refrigerant.
Note. The recycling unit must be equipped with an oil separator. The oil separator must be of a type that allows the amount of oil in the refrigerant to be measured.
Note. Always disconnect the battery lead when working on the climate control system. Disconnect the battery lead. See Battery, replacing .
Other information
- For vacuum pumping, see «Vacuum pumping»(ref-445662-S33106600472012010600000)
- For visual and physical checks, see «Visual and physical check»(ref-445662-S29678858242012010600000)
- To fill with refrigerant, see «Refrigerant, filling»(ref-415247-S31108879012011081500000)
- To fill with fluorescent tracing agent, see «Filling with fluorescent tracing agent with the refrigerant»(ref-445648-S17437214132012010600000)
- To leak trace using an electronic leak tracer, see «Leak tracing, electronic leak tracer»(ref-445648-S14136244972012010600000)
- To leak trace using fluorescent tracing agent and an UV flashlight, see «Leak tracing, fluorescent tracing agent / UV lamp»(ref-415247-S41745310232011081500000)
Scheme 2
Always wear tight-fitting safety glasses if there is any risk for refrigerant leakage.
If refrigerant gets in the eyes rinse immediately in running water for 15 seconds. Seek medical assistance if you experience any problems after exposure (with vision etc.).
Protect exposed skin (hands) to avoid frostbite injuries.
If skin is exposed to refrigerant, flush the affected area with warm running water. Treat the injury as for frostbite.
Scheme 3
Toxic gases may be generated if refrigerant comes into contact with a naked flame.
| WARNING | The toxic gases generated when the refrigerant is heated are hazardous to health. These gases have an irritating smell and can cause lung damage. The symptoms can continue for a long time after you have been in contact with the gases. The gases can cause lung damage even if the amount of gas in the air is too little to smell it. |
Do not keep gas bottles where the temperature can exceed 45° C.
| WARNING | Exposing a gas bottle to heat will cause the pressure in the bottle to increase with a correspondingly greater risk of an explosion occurring. |
Note. Some countries have special legislation about working with air-conditioning systems. Only qualified technicians are to be allowed to work with the A/C system