VW Polo manuals

Volkswagen Polo Service & Repair Manual: 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 refrigerant.
The refrigerant employed is tetrafluoroethane R134a, which boils at -26.5 °C (-15.7 °F) at a vapor pressure of 1 bar (14.5 psi).
   
Chemical formula CH2F–CF3 or CF3–CH2F
Chemical designation Tetrafluoroethane
Boiling point at 1 bar (14.5 psi) -26.5 °C (-15.7 °F)
Solidification point -101.6 °C (-150.88 °F)
Critical temperature 100.6 °C (213 °F)
Critical pressure 40.56 bar absolute (588 psi) equals 39.5 bar pressure (573 psi)
Refrigerant R134a
...

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 ref ...

Other materials:

Overview - Wheel, Standard
1 -  Wheel Installing the wheel. Refer to → Chapter „Wheel, Mounting“. 2 -  Wheel Bolts There are different versions. Refer to → Chapter „Wheel Bolts“. 3 -&nb ...

Battery Post/Terminal
  WARNING Risk of injury. Follow all Warnings and Safety Precautions. Refer to → Chapter „Warnings and Safety Precautions“.   Caution ...

Two-Part HS Clear Coat
Definition: Two-Part HS Clear Coat -L2K 769 500 A5- Edition 10/2012 Product Description Two-part HS clear coat is a VOC compliant, high-quality high solid clear coat. ...

© 2016-2025 Copyright www.vwpolo.net