Service Manual

Part Number: 000015430 Rev 02 5/20 225
IT0900W
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 9.9-11.8 10.4-12.3 12.0-14.2
1-2.5
80/27 10.0-11.9 10.6-12.5 12.2-14.5
90/32 10.1-12.0 11.9-14.1 12.5-14.7
100/38 10.2-12.1 12.2-14.5 12.9-15.2
110/43 10.3-12.2 12.8-15.1 13.3-15.6
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
70/21 780 750 660
80/27 775 740 650
90/32 770 665 640
100/38 760 650 620
110/43 755 625 605
1 Based on average ice slab weight of 6.2 - 7.2 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
50/10 315-320 67-35 140-175 100-120
70/21 315-320 70-36 145-175 105-120
80/27 315-320 75-36 145-175 105-120
90/32 315-320 80-38 150-175 110-120
100/38 315-320 85-38 155-180 110-125
110/43 315-320 90-38 160-185 110-125
1 Suction pressure drops gradually throughout the freeze cycle
2 Water regulating valve set to maintain 230 psig
3 Condenser Water Usage = 141 gal/100 lb ice @ 90°/70°F