Capacity regulation
The capacity regulation takes place through the turning off of the suction gas flows by means of a
solenoid valve on the cylinder cover. For this, the valve is activated electrically by a thermostat or
pressostat.
During normal operation the solenoid is de-energized and the suction gas channel in the valve
plate and in the cylinder cover is open.
During regulated operation the solenoid is energized and the suction gas flow is closed through
the shut-off piston of the solenoid valve. The compressor pistons of the cylinder bank which
is regulated down run idle. The capacity of the compressor is still approx. 50%.
Further information together the description of the working principle of the solenoid valve is contained
in the publication Capacity regulation (Part no. 09900)
Capacity regulation valve (Part No. 07541)
(Only for the capacity regulation which is an accessory)
Removal:
De-energize the solenoid (4)
Screw on the fixing nut (3), pull out the solenoid
(4) with the washer (5).
Unscrew the valve body (2).
Check the valve body (2) for damages and
whether the piston moves freely. If necessary,
replace the complete valve body (2).
Screw on the valve body (2) with the enclosed
new O-ring (1) and tighten it.
Push on the washer (5) and the solenoid (4)
and fasten them with the fixing nut (3)
Put the compressor into operation and check
the functioning of the capacity regulation.
Installation
07541
Fig. 6
09608-09-03-DGbFEI
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