VW Touran manuals

Volkswagen Touran Service Manual: Connecting Service Station

A/C Service Station, Connecting for Measuring and Testing

  Turn off the ignition.
  Connect the A/C service station to the power supply.
  Connect quick-release coupling adapter to charging hoses of service station (handwheels not screwed in/hand shut-off valve not open).
  Switch on service station and evacuate charging hoses (only necessary if there is air in charging hoses).
  Switch off A/C service station.
  Remove caps from service connections (with valve).
  Connect the A/C service station to the refrigerant circuit using service connections with quick-release coupling adapters.
  Screw in handwheel of quick-release coupling adapters only until valves are definitely open at refrigerant circuit connection (observe pressure gauge, do not strain valves).
  Perform planned tests and measurements.
   
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Pressures, Checking
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