Service Manual

208 Part Number: 000015430 Rev 02 5/20
IT0450 SERIES
IT0450A
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 8.9-10.4 9.9-11.6 10.9-12.7
1-2.5
80/27 9.9-11.6 10.9-12.7 11.9-13.9
90/32 10.7-12.5 12.1-14.1 13.1-15.3
100/38 11.7-13.7 13.3-15.5 14.6-16.9
110/43 13.1-15.3 14.3-16.6 15.1-17.5
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
70/21 470 430 395
80/27 430 395 365
90/32 400 360 335
100/38 370 330 305
110/43 335 310 295
1 Based on average ice slab weight of 3.40 - 3.90 lb.
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
50/10 260-335 60-28 145-160 105-125
70/21 260-340 70-32 160-180 120-145
80/27 280-360 75-38 170-190 130-150
90/32 360-400 80-40 175-200 135-160
100/38 440-500 85-42 250-270 185-210
110/43 450-520 85-43 250-280 185-215
1 Suction pressure drops gradually throughout the freeze cycle