18
09665
-0
8.
20
18-
Gb
(Only for the capacity regulation which is an accessory)
7 I Installation of service kits
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“
(Item No. 09900).
Capacity regulation valve
(Item No. 07541)
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).
Installation:
Screw on the valve body (2) with the enclosed new O-ring (1) and
tighten it. Observe the screw tightening torque!
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.
Fig. 5
3
4
5
1
2
07541
70 Nm
