Water Regulating Valve - Water-Cooled Model Only - Hoshizaki IM-21 Service Manual

2. WATER REGULATING VALVE - WATER-COOLED MODEL ONLY

The Water Regulating Valve is factory-adjusted. Do not adjust it except at replacement or
service. Adjust the valve setting, if necessary, as follows:
1) Attach a pressure gauge to high-side line, or prepare a thermometer to check Condenser
drain temperature.
2) Rotate the Adjust Screw using a flat blade screwdriver so that the pressure gauge shows
10 bar [IM-25WLE, IM-30WLE, IM-45WLE, IM-65WLE, IM-100WLE], 16 bar [IM-130WLE,
IM-130WME] or 19 bar [IM-240WME, IM-240WM2E], or the thermometer reads 38 - 40°C,
5 minutes after Freeze Cycle starts.
When the pressure or temperature exceeds the above, rotate the Adjust Screw
counterclockwise.
3) Check that the pressure or temperature holds.
Adjust Screw
Top View
Valve Body
Flare
Connection
Capillary Tube
Fig. 24
98
Adjust Screw
Bellows