Compressor Replacement Access To The Heat Pump Circulation; Evacuating; Filling - Electrolux EDR 2000 Service Manual

8.2 Compressor replacement
Access to the heat pump circulation
Unplug the power supply from the device.
1
Tap into the heat pump circulation with the tap valve (1).
Drain and dispose of the cooling agent R134a in accordance with regulations.
Access is easier if the compressor is removed from its mounting.
Separate the suction (2) and pressure (3) lines with a tube cutter.
2
The compressor can then be removed, and, if appropriate, replaced.
The suction and pressure lines are now reattached to the circulation using Lokring
technology.
A Schrader T-valve (4) can be installed into the suction line for evacuating and
filling the heat pump circuit.
3
As an alternative, it is possible to connect a separate filling tube with valve (6) to
the filling pipe (5) provided on the compressor.
6

8.3 Evacuating

For both economical and technical reasons, one-sided 15-minute evacuation from
the suction side has become proven. The evacuation removes the maximum
amount of foreign gas and moisture from the cooling circuit.
The circuit is evacuated with the compressor switched off. The compressor should
be shaken briefly at least once during the evacuation process so that as much as
possible of the cooling agent that is still mixed into the oil is released.

8.4 Filling

4
7
The cooling agent can be filled directly
5
from the cooling agent bottle using a
special balance (7).
The cooling agent R134a is supplied in
disposable cartridges.
When filling, the compressor must be
switched off and the personal
protective equipment must be worn.
Oil filling R134a: 260g
06.2005 R.Kurzke 599 522 797 EN
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