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232 Part Number: 000015430 Rev 02 5/20
IT1900 SERIES
IT1900A
Self-Contained Air-Cooled Model
Characteristics vary depending on operating conditions.
CYCLE TIMES
Freeze Time + Harvest Time = Total Cycle Time
Air Temp.
Entering
Condenser °F/°C
Freeze Time
Harvest
Time ¹
Water Temperature °F/°C
50/10 70/21 90/32
70/21 8.5-9.7 9.7-11.0 10.4-11.8
1-2.5
80/27 8.9-10.2 10.9-12.4 11.7-13.4
90/32 10.0-11.4 12.0-13.6 13.5-15.3
100/38 12.0-13.6 13.8-15.6 15.7-17.8
110/43 14.8-16.8 16.1-18.2 17.0-19.3
1 Times in minutes
24 HOUR ICE PRODUCTION
Air Temp. Entering
Condenser °F/°C
Water Temperature °F/°C ¹
50/10 70/21 90/32
70/21 1965 1750 1650
80/27 1875 1580 1505
90/32 1705 1470 1270
100/38 1460 1280 1135
110/43 1200 1110 1055
1 Based on average ice slab weight of 13.2 - 14.8 lb.
2 230/50/1 is approximately 12% lower than 230/60/1
OPERATING PRESSURES
Air Temp
Entering
Condenser
°F/°C
Freeze Cycle Harvest Cycle
Discharge
Pressure
PSIG
Suction
Pressure
PSIG ¹
Discharge
Pressure
PSIG
Suction
Pressure
PSIG
50/10 265-340 55-33 160-175 100-120
70/21 270-345 60-34 165-180 110-130
80/27 300-410 65-36 180-200 120-140
90/32 335-420 75-38 200-210 130-150
100/38 390-515 80-44 230-250 160-180
110/43 425-525 85-45 250-260 170-185
1 Suction pressure drops gradually throughout the freeze cycle
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