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Part Number: 000016427 Rev 00 08/2020
Analyzing Discharge Pressure
1. Determine the ice machine operating conditions:
Air temp. entering condenser
______°
Air temp. around ice machine ______°
Water temp. entering sump trough
______°
2. Refer to “Ice Machine Normal Operation Charts” on page 119 for ice machine being
checked.
Use the operating conditions determined in Step 1 to find the published normal discharge
pressures.
Freeze Cycle ______
Harvest Cycle ______
3. Perform an actual discharge pressure check.
Freeze Cycle
PSIG
Harvest Cycle
PSIG
Beginning of Cycle
______________________ ______________________
Middle of Cycle
______________________ ______________________
End of Cycle
______________________ ______________________
4. Compare the actual discharge pressure (Step 3) with the published discharge pressure
(Step 2).
The discharge pressure is normal when the actual pressure falls within the published
pressure range for the ice machine’s operating conditions. It is normal for the discharge
pressure to be higher at the beginning of the freeze cycle (when load is greatest), then
drop throughout the freeze cycle.
Summary of Contents for PKM0335
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