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Refrigeration System | Section 7 |
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Freeze Cycle Suction Pressure High Checklist | |
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Possible Cause | Check/Correct |
Improper installation | See “Installation/Visual Inspection Checklist” |
Discharge pressure | Discharge pressure is too high, and is affecting low side |
| (See “Freeze Cycle Discharge Pressure High Checklist” ) |
Improper refrigerant charge | Overcharged |
| Wrong type of refrigerant |
Other | |
| Harvest valve stuck open |
| TXV flooding (check bulb mounting) |
| Defective compressor |
Freeze Cycle Suction Pressure Low Checklist
Possible Cause | Check/Correct |
Improper installation | See “Installation/Visual Inspection Checklist” |
Discharge pressure | Discharge pressure is too low, and is affecting low side |
| (See “Freeze Cycle Discharge Pressure Low Checklist”) |
Improper refrigerant charge | Undercharged |
| Wrong type of refrigerant |
Other | |
| Improper water supply over evaporator (See “Water System Checklist” ) |
| Loss of heat transfer from tubing on back side of evaporator |
| Restricted/plugged liquid line drier |
| Restricted/plugged tubing in suction side of refrigeration system |
| TXV starving |
NOTE: Do not limit your diagnosis to only the items listed in the checklists.
Part Number |