Service Manual

234 Part Number: 000015430 Rev 02 5/20
IT1900N
Remote Air-Cooled Condenser 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 8.9-10.1 9.4-10.7 11.0-12.5
1-2.5
80/27 9.4-10.7 10.0-11.4 11.8-13.4
90/32 10.2-11.6 10.8-12.3 12.9-14.6
100/38 11.7-13.4 12.6-14.3 14.0-15.8
110/43 13.7-15.5 14.0-15.8 14.3-16.2
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 1830 1740 1520
80/27 1740 1650 1430
90/32 1625 1540 1320
100/38 1435 1350 1230
110/43 1250 1230 1205
1 Based on average ice slab weight of 13.2- 14.8 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
-20/-29 260-290 65-38 170-180 110-130
50/10 270-330 70-38 170-180 115-130
70/21 280-340 75-38 170-180 120-130
80/27 320-400 75-39 170-190 130-150
90/32 345-420 75-40 170-195 140-155
100/38 395-480 85-46 180-210 140-155
110/43 405-485 85-47 180-215 140-155
1 Suction pressure drops gradually throughout the freeze cycle