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MC0322 through MC2148
Air, Water, and Remote Cooled Service Manual
Refrigeration Removal and Replacement
Compressor
1. Remove front panel.
2. If the machine was in operation, push and release the Harvest button to shut it down. Wait until the harvest
cycle has ended so the evaporator has no ice on it.
3. Open the replacement compressor box. Check the compressor nameplate, be SURE that the replacement
compressor is the correct one for the unit.
4. Disconnect electrical power.
5. Recover refrigerant.
6. Remove compressor terminal cover and disconnect electrical leads.
7. Remove all the mounting bolts.
8. Open both discharge and suction access valves
9. Connect nitrogen to discharge access valve.
10. Open nitrogen valve.
11. Unsweat the suction, discharge and process tubes.
12. Unsweat the drier from the liquid line. Remove it.
13. Shut the nitrogen valve.
14. Remove the compressor from the ice machine. Note: Some models may require the control box to be
moved slightly to allow compressor replacement.
15. Immediately place new compressor in ice machine.
16. Open nitrogen bottle and braze compressor suction, discharge and process joints together. Braze new drier
into system.
17. Shut off nitrogen, shut access valves.
18. Evacuate to at least 300 microns.
19. Replace PTCR and run capacitor.
20. Weigh in the nameplate charge. Check for leaks.
21. Reconnect electrical leads.
22. Attach compressor terminal cover.
23. Reconnect electrical power.
24. Return front panel to their original positions.
Note: If the compressor is being returned for warranty, braze the stubs shut and tag the compressor
with the required information.
Electrical Shock Hazard
Disconnect electrical
power before beginning
January 2022
Page 68
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