Specifications

Part Number STH025 02/12 139
Suction Pressure High Checklist
Improper Installation
• Refer to “Installation/Visual Inspection Checklist”
page 131
Discharge Pressure
• Discharge pressure is too high and is affecting
suction pressure – refer to “Freeze Cycle
Discharge Pressure High Checklist” (page 136)
Improper Refrigerant Charge
• Overcharged (also see “Freeze Cycle Discharge
Pressure High Checklist” page 136)
• Wrong type of refrigerant
• Non condensable in system
Components
• Harvest valve leaking - continue the table
• Harvest pressure solenoid valve leaking - continue
the table
• TXV flooding - continue the table
• Defective compressor - continue the table
Other
• Non-Manitowoc components in system