Service Manual

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20) Move the power switch to the "ON" position, then replace the panels in their correct
positions.
21) Turn on the power supply, then move the control switch to the "ICE" position to start the
automatic icemaking process.
H. Adjustment of Water Regulating Valve - Water-Cooled Model Only
The water regulating valve (also called "water regulator") is factory-adjusted. No adjustment
is required under normal use. Adjust the water regulator, if necessary, using the following
procedures.
1) Prepare a thermometer to check the condenser drain temperature. Attach a pressure
gauge to the high-side line of the system.
2) Five minutes after a freeze cycle starts,
conrm that the thermometer reads 104°F
to 115°F (40°C to 46°C). If it does not,
rotate the adjustment screw by using a at
blade screwdriver until the temperature
is in the proper range. See Fig. 4. Next,
check that the reference pressure is in the
range indicated in the Head Pressure table
in the Performance Data section. If it is not
in the proper range, verify the refrigerant
charge.
3) Check that the condenser drain temperature is stable.
I. Removal and Replacement of Fan Motor
1)Move the control switch to the "OFF" position, then turn off the power supply. Remove
the front and top panels, then move the power switch to the "OFF" position.
2) Remove the apron panel.
3) Disconnect the wire connectors from the fan motor leads.
4) Remove the fan motor bracket.
5) Remove the fan blade and install it onto the new fan motor.
6) Install the new fan motor onto the fan motor bracket.
7) Replace the fan motor bracket in its correct position and reconnect the wire connectors.
8) Move the power switch to the "ON" position, then replace the panels in their correct
positions.
9) Turn on the power supply, then move the control switch to the "ICE" position to start the
automatic icemaking process.
Fig. 4
Adjustment Screw
CW – Higher
CCW – Lower
Top View