212 Part Number Preliminary 6/11
QuietQube® Models - Suction Pressure High
Checklist
Improper Installation
• Refer to “Installation/Visual Inspection Checklist”
page 162
Discharge Pressure
• Discharge pressure is too high and is affecting
suction pressure – refer to “Freeze Cycle
Discharge Pressure High Checklist” (page 167)
Improper Refrigerant Charge
• Overcharged (also see “Freeze Cycle Discharge
Pressure High Checklist” page 167)
• Wrong type of refrigerant
• Non condensable in system
Components
• Harvest valve leaking - continue the table
• TXV flooding - continue the table
• Defective compressor - continue the table
Other
• Non-Manitowoc components in system
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