Scotsman F1222L Service Manual - Manual (Page 31)

N0922L, N1322L, F1222L, F1522L
Remote Low Side Service Manual Includes Prodigy Plus
December 2014
Page 31
Repair Procedures: Replace the Evaporator:
(Assuming all the steps for removal of the thrust
bearing, breaker, auger, and water seal have been
performed.)
1. Close ball valves to isolate machine.
2. Recover the refrigerant from the ice maker.
3. Unsweat the refrigerant connections:
• a) At the thermostatic expansion valve outlet. Heat
sink the TXV body when unsweating or resweating
the adjacent tubing.
• b) At the suction line at the joint about 3" from the
evaporator.
4. Remove the evaporator.
5. Unsweat the drier from the liquid line.
6. After installing a new water seal in the new
evaporator (see “To Replace the Water Seal”) sweat
in the new evaporator at the old tubing connections.
7. Install an new drier in the liquid line.
8. Evacuate the system until dehydrated, then weigh
in the nameplate charge. Check for leaks.
9. Install auger, breaker, breaker bearing assembly,
and ice discharge chute in reverse order of
disassembly.
10. Open ball valves.
To Reassemble the Evaporator and Auger
1. After the gear motor has been inspected, fasten the
evaporator to the gear motor. Torque the bolts to 110
inch pounds.
2. Lower the auger into the evaporator barrel, slightly
turning it to match up with the drive end. Do Not Drop
Into the Evaporator.
3. Complete the reassembly by reversing the
disassembly for the breaker & thrust bearing
assembly.