Replace Compressor - Scotsman UF424A-1A Technical Manual

UF424 / UN324 Technical Manual

Replace Compressor

The compressor can be replaced from the back.
Note: Always check electrical information on new
compressor to be sure it is the correct voltage and
phase.
1. Disconnect electrical power.
2. Remove lower back panel.
3. Disconnect wires from compressor terminals.
4. Recover refrigerant from the unit.
5. Remove hair pins holding compressor to chassis.
6. Disconnect suction, discharge and process tubes
from compressor.
7. Remove compressor from unit.
8. Install new compressor in unit.
9. Reconnect suction, discharge and process tubes
using the proper techniques of the refrigeration
trade.
10. Remove and replace the dryer.
11. Attach a vacuum pump with micron gage to the
system and evacuate it to 300 microns.
12. Reattach electrical wires to compressor terminals.
13. Replace the relay and capacitors with those from
the kit.
14. Weigh in the nameplate charge.
Electrical Shock Hazard
Disconnect electrical
power before beginning
September 2017
Page 21