Water Regulating Valve Adjustment (Water-Cooled Model) - Hoshizaki KM-350MWJ Service Manual

C. Water Regulating Valve Adjustment (water-cooled model)
The water regulating valve is factory set, and generally no adjustment is required. However,
when necessary, adjust the water regulator 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.
2) 5 min. 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. 7. 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.
Top View
47
Adjustment Screw
CW – Higher
CCW – Lower
Fig. 7