79
Test Operation, Troubleshooting and Maintenance
Replacement of the compressor
Note: be sure there is no refrigerant inside the system and power supply has been cut off before
replacement.
Steps Image Instructions
4. Loosen screws
at feet of the
compressor.
• Loosen screws at feet of the
compressor with a adjustable
or box spanner.
• Loosened screws should be
put together to avoid loss.
5. Replace the
compressor with
a new one.
• During replacement, care
must be taken to not damage
rubber pads.
• Seal the replaced compressor
to prevent moisture entering;
• Place a new compressor
at the rubber pads. Steel
bushing is required for rubber
pads.
• Tighten the steel bushing with
screws.
6. Reconnect
the suction line,
the discharge
line, other pipes
and electric
lines. Then,
check for normal
operation of the
compressor.
• Reconnect and resolder the
suction and discharge lines.
Do charge nitrogen during
soldering.
• After soldering, charge high-
pressure nitrogen for the leak
test.
• Power on the unit and start it
through a AC contact for 2~3
seconds.
• When the compressor runs
reversely, it would generate
harsh noise.
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