Manitowoc Indigo Series Technician's Handbook page 227

I0450W
Self-Contained Water-Cooled Model
Characteristics vary depending on operating conditions.
CYCLE TIMES
Freeze Time + Harvest Time = Total Cycle Time
Air Temp.
Entering
Condenser
°F/°C
70/21
80/27
90/32
100/38
110/43
1 Times in minutes
24 HOUR ICE PRODUCTION
Air Temp. Entering
Condenser °F/°C
70/21
80/27
90/32
100/38
110/43
1 Based on average ice slab weight of 3.40 - 3.90 lb.
OPERATING PRESSURES
Air Temp
Entering
Condenser
°F/°C
50/10
70/21
80/27
90/32
100/38
110/43
1 Suction pressure drops gradually throughout the freeze cycle
2 Water regulating valve set to maintain 220 psig
3 Condenser Water Usage = 169 gal/100 lb ice @ 90°/70°F
Part Number STH025 8/12
Water Temperature °F/°C
50/10
9.9-11.6
10.2-11.9
10.3-12.0
10.4-12.2
10.7-12.5
Freeze Cycle
Discharge Suction
Pressure Pressure
PSIG
220-230
220-240
230-240
220-240
235-240
240-240
Freeze Time
70/21
11.1-12.9
11.6-13.5
12.1-14.1
12.5-14.5
12.9-15.0
Water Temperature °F/°C
50/10
430
420
415
410
400
Discharge
Pressure
PSIG
48-28 130-160
52-28 130-160
55-29 130-160
55-30 135-160
60-30 170-205
60-30 140-205
Harvest
90/32
12.1-14.1
12.5-14.5
12.9-15.0
13.3-15.5
14.3-16.6
70/21 90/32
390
375
360
350
340
Harvest Cycle
Suction
Pressure
PSIG PSIG
70-95
75-100
75-110
80-115
80-120
80-120
1
Time
1-2.5
1
360
350
340
330
310
1
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