VW Polo manuals

Volkswagen Polo Service & Repair Manual: A/C Refrigerant High Pressure Switch -F23

  Note
For switching pressures, removing and installing switches and switch arrangement and version, see vehicle-specific refrigerant circuit.
Refer to → Rep. Gr.87.
   
Function:
Switches the coolant fan to the next higher level when the pressure in the refrigerant circuit increases (approximately 16 bar (232 psi)).
 

A/C Refrigerant High Pressure Switch -F23

Switches and Sensors on Refrigerant Circuit and Connections
...

Magnetic Clutch High Pressure Switch -F118
  Note For switching pressures, removing and installing switches and switch arrangement and version, see vehicle-specific refrigerant circuit. ...

Other materials:

Test Requirements
Radiator and condenser are clean (clean if necessary). The ribbed belt for the A/C compressor and alternator tensioned correctly. All air ducts, covers and seals are OK and installed correctly. ...

Critical Point
Vehicle air conditioning systems make use of the vaporization and condensation process. In this case, one works with a substance which boils easily, designated as refrigerant. The refrigerant employed is tetrafluoroethane R134a, which bo ...

Coolant Fan Control Module -J293
  Note Available in different construction styles, some installed on coolant fan -arrows-.     This control module switches on and off the A/C clutch and therefore the A/C compressor. It switche ...

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