Manitowoc Indigo Series Technician's Handbook page 248

I1800W
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 13.20 - 14.80lb
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 = 181 gal/100 lb ice @ 90°/70°F
248
Water Temperature °F/°C
50/10
8.8-10.0
8.9-10.2
9.0-10.3
9.1-10.4
9.2-10.5
Freeze Cycle
Discharge
Pressure
PSIG
230-240
220-280
230-240
240-270
240-280
240-280
Freeze Time
70/21
9.8-11.2
10.0-11.3
10.1-11.5
10.3-11.7
10.5-11.9
Water Temperature °F/°C
50/10
1850
1820
1810
1780
1790
Suction Discharge
Pressure
PSIG
45-25
40-26
45-25
50-25
55-25
55-25
Part Number STH025 8/12
Harvest
90/32
11.0-12.5
11.1-12.6
11.2-12.7 0.75-2.0
11.3-12.8
11.3-12.9
70/21
1680
1660
1640
1610
1590
Harvest Cycle
Suction
Pressure Pressure
PSIG
145-165
160-180
145-165
150-190
155-190
155-190
1
Time
1
90/32
1520
1510
1500
1490
1480
1
PSIG
65-80
70-90
65-80
70-90
70-90
70-90