152 Part Number STH025 11/16
Water Regulating Valve
Problem (Freeze Cycle)
Valve not maintaining discharge pressure.
• Valve incorrectly set, dirty or defective. Adjust valve
to correct discharge pressure for your model (refer
to cycle times/24 hour productions charts), clean or
replace valve.
Discharge pressure extremely high; Liquid line entering
receiver feels hot.
• Water regulating valve incorrectly set or not opening
• Insufficient water volume - undersized/kinked lines,
mineral or scale buildup in lines. Verify Head Pressure
Control Valve operation before changing water
regulating valve.
Discharge pressure low, Liquid line entering receiver
feels warm to hot.
• Ice machine low on charge. Verify “Total System
Refrigerant Charge” on page 222.
Water cooled unit requires high pressure water
regulating valve.
• Water pressure forces water regulating valve open.
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