Suction Pressure High Checklist - Manitowoc S300 Technician's Handbook

Suction Pressure High Checklist

Improper Installation
• Refer to "Installation/Visual Inspection Checklist"
page 108
Discharge Pressure
• Discharge pressure is too high and is affecting low
side – refer to "Freeze Cycle Discharge Pressure
High Checklist" (page 113)
Improper Refrigerant Charge
• Overcharged (also see "Freeze Cycle Discharge
Pressure High Checklist" page 113)
• Wrong type of refrigerant
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
116 Part Number 80-1479-3 7/10