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:

Aquaplus Design and Multi-Color Paintwork
In order to achieve error-free design and multi-colored paint applications using Aquaplus solid, metallic, pearlescent base paint, pay attention to the important notes and in some cases use special tools. Preparation: ...

Introduction
This chapter contains information on the following subjects:  → Indicator lamp  → Windscreen wiper lever  → Windscreen wiper functions  → Service position for the front windscreen wipers  → Rain/light sensor  → Checking and refilling the windscree ...

13-Pin« Trailer Socket
The backup lamps, »continuous current« and charging cable can be used on the trailer with the »13-pin« trailer socket. A »13-pin« trailer socket is recommended if a bicycle rack will be installed or a camper will be towed.   ...

© 2016-2026 Copyright www.vwpolo.net