Refrigeration Service Operations
126
Compressor Oil Filter Change
This unit is equipped with a compressor oil filter.
The compressor oil filter should be changed when
the drier is replaced (every two years or major
repairs).
1. Pump down the low side and equalize the
pressure to slightly positive.
2. Front seat the discharge and suction service
valves. Remove the remaining refrigerant
from the compressor.
3. Disconnect the oil lines from the compressor
oil filter. Hold the oil filter with back-up
wrench on the hex behind the ORS fitting.
4. Remove the clamp and the compressor oil
filter.
5. Coat the new O-rings with clean compressor
oil and place them in the ORS fittings on the
ends of the new compressor oil filter.
6. Fasten the new compressor oil filter in place
with the clamp.
7. Attach and tighten the oil lines to the
compressor oil filter. Hold the oil filter with a
back-up wrench on the hex behind the ORS
fitting.
8. Evacuate the compressor and filter to a
maximum of 500 microns to remove trapped
air.
9. Open the service valves, operate the system,
check the compressor oil filter for leaks, and
check the compressor oil level.
Figure 70: Compressor Oil Filter
aea718
To Next Page