A/C Compressor Without Magnetic Clutch
The engine drives the A/C compressor via a ribbed belt.
Overload protection (shear) installed in the A/C compressor ribbed belt pulley releases when the compressor stops and protects the ribbed belt pulley from being overloaded.
The A/C compressor extracts the refrigerant gas from the evaporator, compresses it and relays it to the condenser.
The A/C compressor contains refrigerant oil, which can be mixed with refrigerant R134a under any temperature.
The type plate lists the type of refrigerant required for the A/C compressor. A regulator valve regulates pressure within the specified range (control characteristics) on the low pressure side.
On this A/C compressor, the control valve is activated from outside.
The engine should only be started if the refrigerant circuit is completely assembled. Refer to REFRIGERANT CIRCUIT, GENERAL PRECAUTIONS .
The A/C compressor is equipped with a protected oil supply, this prevents A/C compressor damage in the event that the system is empty. This means that approximately 40 to 50 cm3 of refrigerant oil remains in the A/C compressor.