Manitowoc Indigo NXT Series Technician's Handbook

Part Number: 000015431 Rev01 5/19 107
Analyzing Discharge Pressure in the Freeze Cycle
1. Determine the ice machine operating conditions:
Air temp. entering condenser ______
Air temp. around ice machine ______
Water temp. entering sump trough ______
2. Refer to “Cycle Times/24-Hour Ice Production/
Refrigerant Pressure Charts” on page 179 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 (kPa)
1 Minute into
the Freeze Cycle
Middle of Freeze Cycle
End of Freeze 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.

Manitowoc Indigo NXT Series Specifications

General

Model	Indigo NXT Series
Ice Production	Varies by model
Ice Storage	Varies by model
Energy Efficiency	Energy Star certified models available
Refrigerant	R290 (varies by model)
Cooling System	Air-cooled or water-cooled (varies by model)
Condenser Type	Air-cooled, Water-cooled, or Remote
Touch Display	Yes, with intuitive interface
Control	Cleaning Alerts
Features	Self-cleaning, remote monitoring, energy-saving modes
Power Supply	Varies by model (typically 115V or 208-230V)
Dimensions (H x W x D)	Varies by model
Weight	Varies by model