| The air conditioner compressor is driven by a V-belt from the engine. |
| An electromagnetic clutch is fitted to the air conditioner compressor. When the air conditioning system is switched on, it transmits the mechanical drive between the V-belt pulley and the air conditioner compressor drive shaft. |
| A fusible link is incorporated in the air conditioner compressor V-belt pulley. In the event of stiffness in the air conditioner compressor, it trips the electromagnetic clutch and protects the V-belt drive from overload. |
| The air conditioner compressor draws refrigerant gas from the evaporator, compresses it and sends it to the condenser. |
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| The air conditioner compressor contains refrigerant oil, which can be mixed with R134a refrigerant at any temperature. |
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| The maker's nameplate states the refrigerant for which the air conditioner compressor is suitable. A valve regulates the pressure on the low-pressure side within the specified range (regulation characteristic). |
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| So that the air conditioner compressor suffers no damage when the refrigerant circuit is empty, the magnetic clutch is disconnected and the regulating valve for the air conditioner compressor -N280- is no longer activated (the air conditioner compressor idles with the engine). |
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