Service Manual

220 Part Number: 000015430 Rev 02 5/20
IT0750W
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 7.0-8.3 7.2-8.6 8.2-9.7
1-2.5
80/27 7.0-9.3 7.4-8.7 8.5-10.0
90/32 7.1-8.4 7.6-9.0 8.7-10.3
100/38 7.2-8.6 7.8-9.2 8.9-10.5
110/43 7.4-8.7 7.9-9.4 9.4-11.1
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
70/21 700 680 610
80/27 695 670 595
90/32 690 650 580
100/38 680 640 570
110/43 670 630 545
1 Based on average ice slab weight of 4.12 - 4.75 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
50/10 310-320 65-36 155-165 115-130
70/21 310-320 65-38 165-175 115-130
80/27 310-320 65-38 170-185 120-135
90/32 310-320 65-38 170-190 125-135
100/38 320-350 75-41 170-200 125-145
110/43 330-360 80-42 175-210 125-150
1 Suction pressure drops gradually throughout the freeze cycle
2 Water regulating valve set to maintain 315 psig