Scotsman CME1002R User Manual page 30

CME865R & CME1002R
REMOVAL AND REPLACEMENT
Head Pressure Control Valve
1. Remove side service panel, and top panel if
possible.
2. Discharge and recover refrigerant from the
system.
3. Break off the process tube on the dome of the
head pressure control valve.
4. Cut out or unsweat the tubing connections to
the valve. Remove the valve.
5. Wrap the new valve in wet cloths or other
effective heat sink material, and sweat the tubing
connections to the valve.
6. Weigh the nameplate charge into the receiver.
7. Replace all panels.
8. Reconnect electrical power.
Hot Gas Valve or Liquid Line Valve
1. Remove the side service panel, and top panel if
possible.
2. Discharge and recover the refrigerant from the
system.
3. Remove the electrical connections from the coil
of the valve
4. Cut out or unsweat the valve at the tubing
connections, remove the valve from the ice maker.
5. Install the new valve, wrap it in wet cloths or
other efficient heat sink material.
6. Sweat the tubing connections to the valve.
7. Connect the electrical wires to the terminals of
the valve coil.
8. Weigh the nameplate charge into the receiver.
9. Replace all panels removed for service.
10. Reconnect electrical power.
Thermostatic Expansion Valve
1. Remove the side service panel, and top panel if
possible..
2. Discharge and recover the refrigerant from the
system.
3. Locate the TXV sensing bulb on the suction line,
unwrap the insulation and remove the bulb from
the clamp.
4. Cut out or unsweat the old TXV from the tubing
connections.
5. Wrap the new TXV body in wet cloths or other
efficient heat sink material.
6. Re-attach the TXV bulb to the suction line in the
same place as the original. Be certain to
re-insulate the bulb.
7. Sweat in the new valve. Do not overheat.
8. Weigh the nameplate charge into the receiver.
9. Replace all panels removed for service.
10. Reconnect electrical power.
Allen
Wrench
Torque Stem to
6-8 ft. lb.
Torque Stem Cap to
8-12 ft. lb.
September, 1994
Page 30
Torque
Core Cap to
7-12 ft. lb.
Access Valves
Note: There are no valve
cores in this valve.