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:

Indicator lamp
First read and observe the introductory information and safety warnings The central locking system indicator lamp is located in the driver door . Depending on the vehicle equipment level, the vehicle may have an anti-theft alarm and a SAFELOCK mechanism . After locking ...

Folding the seat cushion and backrests on the rear bench seat forwards and backwards
Fig. 82 Rear bench seat: folding the rear seat cushion forwards Fig. 83 Rear bench seat: release button ①, red marking ② or release button ③ First read and observe the introductory information and safety warnings The rear seat cushions and backrests can be folded forward to extend t ...

Overview of the menu structure
First read and observe the introductory information and safety warnings MFD (multifunction display) Driving time Current fuel consumption (Curr. fuel con.) Average fuel consumption (Av. consumption) Fuel range Distance Average speed Digital speed display Digital oil ...

© 2016-2026 Copyright www.vwpolo.net