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:
Stopping the engine
First read and observe the introductory information
and safety warnings
The steps should only be carried out in the specified order.
1.
The vehicle must be completely stationary .
2.
Press the brake pedal. Keep ...
Wire Break with Dual Repair Point
Repair point with intermediate wire section
–
Free up wire intended for repair at two points
(approximately 20 cm to both sides of respective repair points).
–
If required, remove wiring harness wra ...
A/C Pressure Switch -F129
Note
For switching pressures, removing and installing switches
and switch arrangement and version, see vehicle-specific
refrigerant circuit.
Refer to
→ Rep. Gr.87.
...
