Adjustment Of Water Regulating Valve - Water-Cooled Model Only - Hoshizaki KM-1800SWH/3 Service Manual

N. 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 procedure.
1) Prepare a thermometer to check the condenser drain temperature. Attach a pressure
gauge to the high-side line of the system.
) Five minutes after a freeze cycle starts, confirm 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 flat blade
screwdriver until the temperature is in the proper range. See Fig. 3. 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.
Adjustment Screw
CW – Higher
CCW – Lower
Top View
Adjustment Screw
Fig. 3
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