Volkswagen Polo Service & Repair Manual: Refrigerant R134a Environmental Information
| 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). |
| R134a is a fluorocarbon and contains no chlorine. |
| R134a has a shorter atmospheric life span than refrigerant
R12. |
| R134a does not damage the ozone layer. The ozone depletion
potential is zero. |
| The greenhouse potential of R134a (Global Warming Potential
= GWP) is approximately 1430 (the GWP of carbon dioxide is 1). |
| The global warming effect of R134a is ten times less than
that of refrigerant R12. |
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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:
Support Mode with Battery Charger -VAS5903
General Information
The support mode provides the vehicle electrical system with
voltage when the battery is removed or disconnected.
For more information. Refer to Battery Charger -VAS5903-
Operating Instructions.
...
Sun visors
Fig. 70 Sun visor
First read and observe the introductory information
and safety warnings
Various positions for the driver and front passenger sun visors:
Folded down over the windscreen.
Pulled out of the bracket and swung over towards the door .
Vanity mirror light
There is a v ...
Flushing Circuit Block Diagrams
Note
The arrows in the following illustrations show the direction
of refrigerant flow while flushing. During flushing, refrigerant
flows in the opposite direction than during A/C system
operation, therefore the high pressure side of A/C se ...
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