Volkswagen Golf Service & Repair Manual: Water content
Only very small amounts of water are soluble in liquid
refrigerant. On the other hand, refrigerant vapour and water
vapour mix in any proportion. |
Any water present in the refrigerant circuit will be carried
along as droplets. The dessicant, dessicant bag or dessicant
cartridge in the receiver or reservoir are capable of holding
approx. 7 grams of water before they are full and cannot absorb
any more water. If there is further water in the circuit, it
will flow to the expansion valve jet or to the restrictor and
becomes ice. |
The air conditioning system will stop cooling. |
Water destroys the air conditioner because at high pressures
and temperatures it combines with other impurities to form
acids. |
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Refrigerant is non-flammable. On the contrary, it has a
fire-inhibiting or fire-extinguishing effect. Refrigerant
decomposes when exposed to flames or incandescent surfaces. UV
light can also decompose refrigerants (UV is emitted by electric
arc welding). Products of this decomposition are poisonous and
must not be inhaled. However, these chemicals irritate the
mucous membranes, giving adequate warning of their presence. |
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In its pure state, refrigerant R134a is chemically stable
and does not attack iron or aluminium.
However, impurities such as chlorine compounds in th ...
There must be space both for liquid and vapour in a
container. As the temperature rises, the liquid expands. The
space occupied by the vapour becomes smaller. Eventua ...
Other materials:
Testing equipment and tools
List of test equipment, tools and materials
Note
This list is an overview of the test equipment, tools and
materials necessary for professional repairs to the refrigerant
circuit.
Caution
...
Paintwork system for plastic components
Issue 03.2010
This universal system allows simple and reliable painting of
all external plastic components in standard applications.
(Synthetic types: PP, EPDM, ABS, PC, PPO, PBTP, UP-GF, PA, PVC,
R-TPU, PUR). This technical data sheet i ...
Removing and installing auxiliary air heater element -Z35- with auxiliary
air heater control unit -J604-, LHD vehicles
Removing
–
Remove driver side knee airbag
→ General body repairs, interior; Rep. gr.69.
–
Remove left centre console trim in footwell
→ General body repairs, interior ...
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