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10.4
Maintenance work
10.4.1
Opening the compressor
If the compressor has to be opened to clean the crankcase or replace compo-
nents, the pressure must be relieved first.
Procedure:
1.
2.
3.
®
After opening the compressor and prior to a restart, remove any air that may
have entered during evacuation.
Comply with the occupational safety regulations.
10.4.2
Replacing the oil filter
Change the oil in accordance with the compressor maintenance manual.
10.4.3
Dismantling the compressor suction filter
The suction filter is a dirt trap on the suction side of the compressor.
To clean it, proceed in the same way as for dismantling the compressor.
Remove the suction filter after the ambient pressure is reached.
After cleaning or filter change and reassembly, you should evacuate.
L_151511_2
19.12.2019
Notice
Carry out the work on the compressor in accordance with the compressor
maintenance manual.
► The Installation and Maintenance Manual is part of the product documen-
tation.
Shifting the refrigerant to the evaporator in manual operating mode by closing
the suction stop valve and the oil return stop valve.
After the crankcase pressure has dropped to p = 0 bar (overpressure), switch
off the compressor and close both manual stop valves on the compressor.
Attach hose to pressure chamber service valve and use an extraction device
to remove remaining refrigerant.
The compressor may now be opened.
Notice
See also Installation and Maintenance Manual for compressor.
► The Installation and Maintenance Manual is part of the product documen-
tation.
Maintenance
Maintenance work
95
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