Service Manual

206 Part Number: 000015430 Rev 02 5/20
IT0420 SERIES
IT0420A
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 9.9-10.4 10.4-12.2 13.1-15.3
1-2.5
80/27 9.9-11.6 11.7-13.7 13.6-15.8
90/32 10.7-12.5 11.7-13.7 13.8-16.1
100/38 12.1-14.1 13.1-15.3 14.3-16.6
110/43 12.9-15.0 14.0-16.3 14.8-17.2
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
70/21 470 410 335
80/27 430 370 325
90/32 400 375 320
100/38 360 335 310
110/43 340 315 300
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
50/10 270-340 60-30 145-170 115-135
70/21 280-340 70-36 160-190 120-140
80/27 335-365 70-38 180-205 120-160
90/32 350-410 80-40 185-210 180-210
100/38 460-500 80-45 265-290 180-210
110/43 460-520 80-45 270-290 180-220
1 Suction pressure drops gradually throughout the freeze cycle