Vogt TUBE-ICE 05TA, Service Manual

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05TA Service Manual
SERVICE OPERATIONS
8/13/01
9-12
Whenever there is a compressor failure due to a motor burnout, it is important that they system be
thoroughly cleaned before replacing the damaged compressor or otherwise the new compressor may
also be damaged.
Solenoid Valves. All solenoid valves are pilot operated with “floating” type diaphragms. For
satisfactory operation be sure that the manual opening stem is in the closed or automatic position.
This means the stem is backed all the way out. Correct direction of stem rotation should be labeled
on the stem seal nut.
FIGURE 9-6A
“D” Solenoid Valve
FIGURE 9-6B
“A” Solenoid Valve
Circulating Water Pump Motor . The motor bearings are prelubricated and sealed. They require
no further lubrication. The pump should operate with the water level above the impeller housing.
The pump is equipped with a mechanical seal that is self-adjusting and requires no lubrication.
However, the pump should not be operated unless circulating water. The pump manufacturer
recommends that a mechanical seal be kept as a spare. When ordering a seal, specify pump size, type,
serial number, and manufacturer’s name as indicated on the nameplate.