User Manual - Page 209

For IRT1900N263E.

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Part Number: 000015430 Rev 02 5/20 209
IT0450W
Self-Contained Water-Cooled Model
Characteristics vary depending on operating conditions.
CYCLE TIMES
Freeze Time + Harvest Time = Total Cycle Time
Air Temp.
Around Ice
Machine °F/°C
Freeze Time
Harvest
Time ¹
Water Temperature °F/°C
50/10 70/21 90/32
70/21 9.9-11.6 11.1-12.9 12.1-14.1
1-2.5
80/27 10.2-11.9 11.6-13.5 12.5-14.5
90/32 10.3-12.0 12.1-14.1 12.9-15.0
100/38 10.4-12.2 12.5-14.5 13.3-15.5
110/43 10.7-12.5 12.9-15.0 14.3-16.6
1 Times in minutes
24 HOUR ICE PRODUCTION
Air Temp. Around Ice
Machine °F/°C
Water Temperature °F/°C ¹
50/10 70/21 90/32
70/21 430 390 360
80/27 420 375 350
90/32 415 360 340
100/38 410 350 330
110/43 400 340 310
1 Based on average ice slab weight of 3.40 - 3.90 lb.
OPERATING PRESSURES
Air Temp
Around Ice
Machine
°F/°C
Freeze Cycle Harvest Cycle
Discharge
Pressure
PSIG ²
Suction
Pressure
PSIG ¹
Discharge
Pressure
PSIG
Suction
Pressure
PSIG
50/10 330-335 70-35 155-180 125-150
70/21 330-335 70-35 165-190 125-155
80/27 330-335 70-36 165-190 125-155
90/32 330-335 75-38 170-190 130-155
100/38 330-335 75-39 170-195 130-155
110/43 330-350 85-42 170-200 130-165
1 Suction pressure drops gradually throughout the freeze cycle
2 Water regulating valve set to maintain 330 PSIG
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