Manitowoc indigo series Technician's Handbook page 247

I0906W
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
70/21
80/27
90/32
100/38
110/43
1 Times in minutes
24 HOUR ICE PRODUCTION
Air Temp. Around Ice
Machine °F/°C
70/21
80/27
90/32
100/38
110/43
1 Based on average ice slab weight of 6.2 - 7.2 lb.
OPERATING PRESSURES
Air Temp
Around Ice
Machine
°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 230 psig
3 Condenser Water Usage = 141 gal/100 lb ice @ 90°/70°F
Part Number STH025 11/16
Water Temperature °F/°C
50/10
9.1-10.8
10.2-12.1
10.4-12.3
11.6-12.5
11.3-13.3
Freeze Cycle
Discharge
Pressure Pressure
PSIG
225-235
225-235
230-245
225-235
235-250
235-265
Freeze Time
70/21
10.3-12.2
10.4-12.3
11.3-13.3
11.6-13.7
12.2-14.5
Water Temperature °F/°C
50/10 70/21
840
765
750
740
700
Suction Discharge
Pressure
PSIG
45-28 130-160
45-30 130-160
50-30 130-160
55-31 130-160
55-32 135-160
60-32 140-160
Harvest
Time
90/32
10.9-12.9
11.1-13.1
11.4-13.5 1-2.5
11.9-14.1
13.0-15.4
90/32
755 720
750 710
700 690
680 665
650 615
Harvest Cycle
Suction
Pressure
PSIG PSIG
75-90
75-90
75-90
75-90
75-95
75-95
1
1
1
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