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Specifications for pressures in refrigerant circuit > < Specifications for pressures in refrigerant circuit

A4 Mk3

Checking pressures on vehicles with restrictor, reservoir and air conditioner compressor regulating valveN280 (with externally regulated air conditioner compressor)
Checking pressures on vehicles with restrictor, reservoir and air conditioner compressor regulating valve -N280- (with externally regulated air conditioner compressor)
  Note
t  Connect air conditioner service station → Chapter.
t  Observe test requirements → Chapter.
–  Check the pressures in the refrigerant circuit (with the air conditioner service station) with the ignition switched off → Chapter.
The pressures with the ignition switched off correspond to the specifications.
–  Start engine.
–  Set engine speed to 2000 rpm.
–  Observe the pressure reading (e.g. pressure gauge) of the air conditioner service station.
  Note
t  The switching pressures for actuation of -N280- and the radiator fans -V7- are vehicle-specific.
t  The pressures must be measured at the service connections; the fitting locations of these connections are vehicle-specific → Heating, air conditioning; Rep. gr.87 or → Air conditioning; Rep. gr.87 (vehicle-specific workshop manual).
t  Specifications for pressures in refrigerant circuit → Chapter
   

Specifications for pressures in refrigerant circuit > < Specifications for pressures in refrigerant circuit