Volkswagen Polo Service & Repair Manual: Charging Systems not Requiring a Permit
At this time, A/C service units for extracting, cleaning and
filling refrigerant for motor vehicle A/C systems are available
from various manufacturers. |
Charging systems not requiring a permit are ones used for
transferring compressed gases to mobile compressed-gas vessels
for internal use only. |
Some A/C service units are charging systems not requiring a
permit. When working with such equipment, the refrigerant is not
transferred to mobile compressed-gas vessels, but rather into a
permanently installed charging cylinder with visible level gauge
and float switch. |
It is advisable to use a portable cylinder with visible
level gauge and pressure relief valve for surplus refrigerant
for internal use. |
Observe the different technical regulations for handling and
filling compressed gases in other compressed-gas vessels (for
example RGS 400, TRGS 402, TRGS 407, TRGS 510, TRBS 3145 / TRGS
725). |
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At this time, A/C service units for extracting, cleaning and
filling refrigerant for motor vehicle A/C systems are available
from various manufacturers.
...
WARNING
When performing work on refrigerant circuit, observe
all generally applicable safety precautions and pressure
...
Other materials:
Compressor Types, Checking Pressures
Note
Check cooling performance. The A/C system is functioning
correctly when the air flowing from the instrument panel vents
has a temperature of 70C or lower.
Setting on Climatronic “LO”.
...
Refrigerant Circuit with Expansion Valve and Evaporator
1 -
Evaporator
2 -
Expansion Valve
3 -
Valve for extracting, filling and measuring
4 -
Receiver/dryer with dryer bag/dryer cartridge
...
Cleaning the engine compartment
First read and observe the introductory information
and safety warningsThe engine compartment of any motor vehicle is a hazardous
area .
The engine compartment should be cleaned by a qualified workshop. Corrosion protection
could be removed and electrical components damaged if the compartmen ...
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