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Part Number: 000015430 Rev 02 5/20 115
Freeze Cycle Discharge Pressure High Checklist
Improper Installation
• Refer to “Installation/Visual Inspection Checklist” on
page 108
Air Condenser
• Dirty condenser filter
• Dirty condenser fins
• High inlet air temperature
• Condenser discharge air recirculation
• Defective fan cycling control
• Defective fan motor
• Defective head pressure control valve (Remote)
Water Condenser
• Low water pressure (20 psig [138 kPa] min.)
• High inlet water temperature (90°F/32°C max.)
• Dirty condenser
• Dirty/Defective water regulating valve
• Water regulating valve out of adjustment
Other
• Overcharged
• Non-condensible (air) in system
• Wrong type of refrigerant
• Non-Manitowoc components in system
• High side refrigerant lines/component restricted
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