Volkswagen Polo Service & Repair Manual: Refrigerant R134a

Refrigerant R134a Vapor Pressure Table

The vapor pressure table for every refrigerant is published in literature for refrigeration system engineers. This table makes it possible to determine the vapor pres ...

Refrigerant R134a Physical Data

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 ref ...

Other materials:

Refrigerant Circuit Connections with Valve for Switches
  Note For switching pressures, removing and installing switches and switch arrangement and version, see vehicle-specific refrigerant circuit. Refer to → Rep. Gr.87.   ...

Winter Tires with Speed Symbol V
Table. Refer to → Anchor. The tire industry delivers winter tires with V-rating also. These tires can be applied up to the maximum permissible speed vmax = 240 km/h (149.13 mph) only under certain conditions. ...

A/C System, Operating after Charging
  Caution If it is suspected that chemicals were added to the refrigerant circuit to seal leaks, do not connect the A/C service station and do not extract the refrigerant. ...