| Portable extraction and charging devices linking the air
conditioning system to a fixed compressed gas container. |
| The fixed compressed gas container is charged with
refrigerant or refrigerant/oil mixture. The portable extraction
and charging device is then permanently attached to the pressure
vessel. In accordance with § 3 section 5 no. 3 of the
Regulations for Pressure Tanks, in this case the terms
"compressed gas container" and "pressure tank" are equivalent. |
| Charging devices require: |
| no checking by an authorised official, since the gas is held
in the compressed gas container, which is equivalent to a
pressure tank. (Devices for filling refrigerant from these
pressure tanks into compressed gas containers that are intended
for third-party use, in turn, require licensing and they are
subject to checking by an authorised official.) |
 Note
| The air conditioner service and recycling devices used in
vehicle workshops are Group 3 extraction and charging devices
which do not require a permit, but which can be operated only by
skilled staff. Refer to the manufacturer's documentation for
instructions on operating and maintaining these devices. |
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Questions & answers
Classification of extraction and charging devices in groups — Volkswagen Golf Mk7
How are AC service devices classified?
Group 3: portable units linked to a fixed compressor. Group 4: fully portable with built-in compressor. The manual describes both.
At present, various manufacturers offer air conditioner
service devices on the market for evacuating, cleaning and
charging refrigerant in vehicle air conditioning sy ...
Charging devices that do not require a permit are mobile
charging devices into which pressurised gases are charged into
compressed gas containers for exclusive use of ...
