56 Section E- Refrigeration System
Before installing the replacement compressor remove the discharge plug and
check for the pop sound of the inert gas leaving the compressor.
If the compressor checks OK, reinstall the plug. Do not remove any of the plugs
again until the compressor is in position and you are ready to braze the lines.
A new compressor which is cold (e.g. after having been kept in a cold service van)
should be left to warm to the surrounding temperature before the plugs on the
compressor connections are removed. This will help prevent condensation from
forming in the oil and the compressor. Also, avoid opening the system when any of
the components or lines are cold.
1. Disconnect electrical supply to refrigerator.
2. Remove compressor access panel.
3. Recover refrigerant by using EPA approved recovery system.
4. Remove leads from compressor motor terminals.
5. Remove mounting clips and washers.
6. Remove inoperable compressor and transfer mounting parts to new
compressor.
7. Drain oil from old compressor and mark with approved tag that oil has been
removed.
8. Remove suction line from old compressor and install on new compressor.
9. Install new compressor in exact same manner as original compressor.
CAUTION
DO NOT use compressor if you do not hear this sound..
CAUTION
On R-134a systems, compressor must NOT be left open to atmosphere for more than 10
minutes to prevent moisture contamination of oil.
NOTE
Release holding charge (release slowly to avoid oil discharge) on new compressor to
ensure there is no leak in seam or tubing. Reinstall rubber plug.
To Next Page
Loading...
