Volkswagen Golf 1999 Service Manual page 3993

General information on refrigerant circuit
The A/C compressor extracts the refrigerant gas from the
evaporator, compresses it and relays it to the condenser.
Note:
- The A/C compressor contains refrigerant oil, which can be
mixed with refrigerant R134a under any temperature.
- The refrigerant for which the A/C compressor is designed
is listed on the manufacturers plate. A regulator valve
regulates pressure within the specified range (control
characteristics) on the low pressure side.
- In this A/C compressor, the regulator valve is activated
from outside.
- Engine should only be started when the refrigerant circuit
is completely assembled
on refrigerant circuit
- 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 approx.40 to 50
3
cm of refrigerant oil remains in the A/C compressor.
A/C compressor without A/C clutch with torsion-
elastic clutch
A/C compressor is driven directly by the power steering
vane pump.
An overload safeguard is installed on drive shaft of A/C
compressor which shears off when A/C compressor locks
up so that power steering vane pump remains functional.
The A/C compressor extracts the refrigerant gas from the
evaporator, compresses it and relays it to the condenser.
Note:
- The A/C compressor contains refrigerant oil, which can be
mixed with refrigerant R134a under any temperature.
- The refrigerant for which the A/C compressor is designed
is listed on the manufacturers plate. A regulator valve
regulates pressure within the specified range (control
characteristics) on the low pressure side.
- In this A/C compressor, the regulator valve is activated
from outside.
- Engine should only be started when the refrigerant circuit
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00-1, Basic rules for working
.
Página 3 de 21
13/2/2005