–87–
FREEZE CYCLE DISCHARGE PRESSURE
LOW CHECKLIST
Problem
• Cause
Improper Installation
• Refer to “Installation/Visual Inspection Checklist”
Improper Refrigerant Charge
• Undercharged
• Wrong type of refrigerant
Water regulating valve (water cooled condensers)
• Out of adjustment
• Defective
Other
• Non-Manitowoc components in system
• High side refrigerant lines/component restricted
(after mid-condenser)
• Defective head pressure control valve
• Defective fan cycle control
NOTE: Do not limit your diagnosis to only the items
listed in the checklists.
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