NME454, 654 & FME504, 804
REMOVAL AND REPLACEMENT: Evaporator
To Replace the Evaporator: |
| To Reassemble the Evaporator and Auger | ||
(Assuming all the steps for removal of the thrust | 1. After the gearmotor has been inspected, fasten | |||
bearing, breaker, auger, and water seal have been | the evaporator to the gear motor, be sure that the | |||
performed.) |
| number of shims indicated on the gear case cover | ||
1. | Recover the refrigerant from the ice maker. | is in place between the gearcase cover and the | ||
2. | Unsweat the refrigerant connections: | drip pan gasket. Torque the bolts to 110 inch | ||
pounds. | ||||
a) At the thermostatic expansion valve outlet. | ||||
2. Lower the auger into the evaporator barrel, | ||||
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Heat sink the TXV body when unsweating or | slightly turning it to match up with the drive end. Do | |||
Not Drop Into the Evaporator. | ||||
resweating the adjacent tubing. |
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| 3. Complete the reassembly by reversing the | |||
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b) At the suction line at the joint about 3" from the | disassembly for the breaker & thrust bearing | |||
assembly. | ||||
evaporator. |
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3. | Remove the evaporator. |
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4. | Unsweat the drier from the liquid line. |
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5. | After installing a new water seal in the new |
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evaporator (see “To Replace the Water Seal”) |
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sweat in the new evaporator at the old tubing |
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connections. |
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6. | Install an new drier in the liquid |
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line. |
| ICE SWEEP | ||
7. | Evacuate the system until | ICE CHUTE | ||
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dehydrated, then weigh in the | EVAPORATOR |
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nameplate charge. Check for leaks. |
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8. Install auger, breaker, breaker bearing assembly, and ice discharge
chute in reverse order of | BREAKER |
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disassembly. See “To Reassemble |
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Evaporator and Auger” |
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AUGER
BEARING
NME Components
Shown, FME similar.
January 2007
Page 29
