| The air conditioning compressor is activated by the engine of the vehicle, by means of a splined trapezoidal belt. |
| The fuse (for protection against shearing) in the pulley of the splined trapezoidal belt of the air conditioning compressor activates a magnetic coupling and, in the event that the air conditioning compressor locks, it protects the mechanism from any overload. |
| The air conditioning compressor sucks the refrigerant gas from inside the evaporator, and transfers it to the condenser. |
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| The air conditioner compressor contains oil mixable with R134a refrigerant gas at all temperatures. |
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| The type of refrigerant gas used in the compressor is shown on the manufacturer's nameplate. There is an adjustment valve for adjusting the pressure in the low pressure area to values within the predicted nominal values (characteristic regulating curve). |
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| In this type of air conditioning compressor, the adjustment valve is operated from outside. |
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| The engine must only be started if the refrigerant gas loop is properly assembled. |
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| In order to avoid damage to the air conditioning compressor when the refrigerant gas loop is empty, it is equipped with an oil supply system. This means that 40 to 50 cm3 of refrigerant gas oil remain in the air conditioning compressor. |
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