Volkswagen Golf Service & Repair Manual: Vapour pressure
In an enclosed container that is not completely full,
refrigerant evaporates as vapour at the surface in a quantity
sufficient to form an equilibrium between vapour and liquid.
This equilibrium develops under pressure and is often called
vapour pressure. The vapour pressure is temperature-dependant
→ Chapter. |
|
|
|
Physical properties of R134a |
Because the vapour pressure curves of R134a and other
refrigerants are in part very similar, unique identification on
the basis of pressure alone is not possible. |
The air conditioner compressor used for R134a is lubricated
with special synthetic refrigerator oils, such as PAG oils (polyalkylene
glycol oils). |
|
Refrigerant R134a is currently available under the following
trade designations:
H-FKW 134a
SUVA 134a
...
In its pure state, refrigerant R134a is chemically stable
and does not attack iron or aluminium.
However, impurities such as chlorine compounds in th ...
Other materials:
Mechanically positioned ball coupling
Fig. 107 Swivelling out the ball coupling
First read and observe the introductory information
and safety warnings In the rear bumper there is a ball coupling for the towing
bracket which can be swivelled out when needed. The ball coupling cannot be removed.
Swivelling out the ball coupli ...
Assembly overview - rear door window
1 -
Rear door
2 -
Window regulator
Removing and installing
→ Chapter
3 -
Spreader pin
Together with spreader plug for securing door window.
4 -
Spreader plug
...
Deactivating APP function of wiper motor
The windscreen wiper system is equipped with an APP function
(alternating park position).
With the APP function, the wiper is moved up slightly once
it has reached the lowest position. This occurs every second
time the wiper system is sw ...
© 2016-2024 Copyright www.vwgolf.org