Manitowoc Marine Q 1000, Service Technician'S Handbook

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Q320 Series - Self-Contained Water-Cooled
Characteristics may vary depending on operating conditions.
CYCLE TIMES
Freeze Time + Harvest Time = Total Cycle Time
24 HOUR ICE PRODUCTION
CONDENSER WATER CONSUMPTION
OPERATING PRESSURES
Air Temp.
Around Ice
Machine
°F/°C
Freeze Time
Harvest
Time
Times in minutes
Water Temperature °F/°C
50/10.0 70/21.1 90/32.2
70/21.1 12.6-14.4 13.6-15.5 15.4-17.6
1-2.5
80/26.7 13.1-14.9 14.2-16.2 16.1-18.4
90/32.2 13.6-15.5 14.8-16.8 16.9-19.2
100/37.8 14.2-16.2 15.4-17.6 17.7-20.2
Air Temp.
Around Ice
Machine °F/°C
Water Temperature °F/°C
Based on average ice slab weight of 2.94 - 3.31 lb.
50/10.0 70/21.1 90/32.2
70/21.1 300 280 250
80/26.7 290 270 240
90/32.2 280 260 230
100/37.8 270 250 220
Air Temp. Around Ice
Machine 90°F/32.2°C
Water Temperature °F/°C
Water regulating valve set to maintain 230 PSIG discharge pressure
50/10.0 70/21.1 90/32.2
Gal/24 hours 270 560 3200
Air Temp.
Around
Ice
Machine
°F/°C
Freeze Cycle Harvest Cycle
Discharge
Pressure
PSIG
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Suction
Pressure
PSIG
Suction pressure drops gradually throughout the freeze cycle
50/10.0 225-235 50-36 160-180 80-110
70/21.1 225-235 50-36 170-190 85-115
80/26.7 225-240 50-36 170-200 85-115
90/32.2 225-250 50-36 170-210 90-120
100/37.8 225-260 52-36 170-210 90-120
110/43.3 225-265 54-36 175-215 95-125