Volkswagen Polo Service & Repair Manual: Refrigerant R134a Physical Data
|
| 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) |
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:
A/C System Operation
The temperature in the passenger compartment depends on the
amount of heat radiated through the windows and conducted by the
metal parts of the body. In hot weather it is possible to
achieve a more comfortable temperature for the passengers by
pumping of ...
Warning and indicator lamps
The warning and indicator lamps indicate various warnings , faults or certain
functions. Some warning and indicator lamps light up when the ignition is
switched on and should go out once the engine is running or the vehicle is in
motion.
Depending on the vehicle's equipment level, additional ...
Corrective Action When Vehicle Pulls to One Side
Test Conditions Before and During the Road Test
–
Check all suspension components on front and rear axle for
damage.
–
Check tire pressure and correct if necessary.
– ...
