Audi 100 1991 ➤ , Audi 80 1992 ➤ , Audi A1 2011 ➤ , Audi A1 Sportback 2 ...
Air conditioner with refrigerant R134a - Edition 11.2018
3.10.2
Charging systems that do not require a
permit
WARNING
When working on the refrigerant circuit and handling refriger‐
ant, observe the generally valid safety precautions and pres‐
sure vessel regulations.
Charging systems not requiring a permit are ones used for trans‐
ferring compressed gases to mobile compressed-gas vessels for
internal use only.
Note:
Some air conditioner service units are charging systems not re‐
quiring a permit. When working with such equipment, the refrig‐
erant is not transferred to mobile compressed-gas vessels, but
rather into a permanently installed charging cylinder with visible
level gauge and float switch.
Recommendation:
It is advisable to use a portable cylinder with visible level gauge
and high-pressure safety valve for surplus refrigerant for internal
use.
Various technical regulations (e.g. TRGS 400, TRGS 402, TRGS
407, TRGS 510, TRGS 725/TRBS 3145) must be noted when
filling compressed gases into other compressed-gas vessels.
3.11
Repair notes for refrigerant circuit
WARNING
♦ When working on the refrigerant circuit, observe generally
valid safety precautions and pressure vessel regulations.
Special tools and accessories:
The performance of proper workmanlike repairs on an air condi‐
tioning system
•
•
•
Requires the use of special tools and materials as listed on
⇒ page 377 .
Requires compliance with the basic instructions for use of leak
detectors ⇒ page 169 .
Requires expert knowledge.
Note
Releasing refrigerant into the environment is prohibited
⇒ page 73 (laws and regulations).
72
Rep. gr.87 - Air conditioning system
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