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1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
10.4.4.4 Used oil
Refrigeration machine oil drained from the circuit is no longer suitable for use in
products. It has to be stored or transported in appropriately labelled containers in
accordance with the legal provisions. The operator is responsible for its proper
disposal.
10.4.4.5 Draining the oil
It may be necessary to drain the oil:
•
•
The oil must be drained in accordance with points 1 to 4 of the chapter "Carrying
out an oil change". The oil must be drained through a filling hose and into a con-
tainer suitable for waste oil.
10.4.4.6 Checking the oil level
The oil level is checked visually in the sight glass of the oil separator.
The filling level should be 1/2 to 3/4 of the height of the sight glass.
If the filling level is too low, replenish the oil. The filling amount must be docu-
mented in an appropriate log.
10.4.4.7 Filling with oil, topping up with oil
See chapter "Start-up, charging with oil".
L_151511_2
19.12.2019
The chiller must be run for at least half an hour to reach its operating temper-
ature before the oil can be changed.
First shut down the chiller as described in the operating instructions.
Close the stop valves of the compressor side and the compressor pressure
side and evacuate the compressor.
Subsequently, drain the used oil through the oil draining / oil charging valves
and dispose of it (Attention! Hazardous waste!). Once this has taken place
close the valve again.
Clean the interior of the compressor crankcase with a lint-free cloth.
Subsequently, mount the covers on the crankcase again using new gaskets.
The filter insert of the oil pressure filter must be replaced.
Charge the compressor crankcase above the oil charging valve with fresh oil
of the indicated amount.
Check the fill levels at the sight glass during this.
Evacuate the compressor using a vacuum pump.
Open the suction side and pressure side stop valves again.
Then check all components for leakages. The oil charge oil and start-up of the
chiller must be accomplished in accordance with the operating instructions.
to inspect or repair the compressor
and
if there is too much oil in the circuit.
Maintenance
Maintenance work
97
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