Hoshizaki KM-250BWF - Manual (Page 40)

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9. 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) Attach a pressure gauge to the high-side line of the system or prepare a thermometer
to check for the condenser drain temperature.
2) Rotate the adjustment screw by using a flat blade screwdriver, so that the pressure
gauge shows 270 PSIG or the thermometer reads 104-115 °F, 5 minutes after a freeze
cycle or icemaking process starts. When the pressure exceeds 270 PSIG, or the
condenser drain temperature exceeds 115 ° F, rotate the adjustment screw counter-
clockwise. See Fig. 1.
3) Check that the pressure or the condenser drain temperature holds a stable setting.
Fig. 1