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Part Number: 000015431 Rev 02 6/20 113
SUCTION PRESSURE LOW CHECKLIST
Improper Installation
• Refer to ”Installation/Visual Inspection Checklist” on
page 103
Discharge Pressure
• Discharge pressure is too low and is affecting low side
– refer to “Analyzing Discharge Pressure in the Freeze
Cycle” on page 108
Improper Refrigerant Charge
• Undercharged
• Wrong type of refrigerant
Other
• Non-Manitowoc components in system
• Improper water supply over evaporator – refer to
“Water System Checklist” on page 104
• Restricted/plugged liquid line drier
• Restricted/plugged tubing in suction side of
refrigeration system
• TXV starving
• Liquid line solenoid valve closed
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