Manitowoc Marine Q 1000, Service Technician'S Handbook

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Q320 Series - Self-Contained Air-Cooled
Characteristics may vary depending on operating conditions.
CYCLE TIMES
Freeze Time + Harvest Time = Total Cycle Time
24 HOUR ICE PRODUCTION
OPERATING PRESSURES
Air Temp.
Entering
Condenser
°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 12.2-13.9 13.1-14.9 14.2-16.2
1-2.5
80/26.7 13.6-15.5 14.8-16.8- 16.1-18.4
90/32.2 16.1-18.4 17.7-20.2 19.7-22.3
100/37.8 19.7-22.3 22.0-25.0 25.0-28.3
Air Temp. Entering
Condenser °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
70/21.1 310 290 270
80/26.7 280 260 240
90/32.2 240 220 200
100/37.8 200 180 160
Air Temp.
Entering
Condenser
°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
50/10.0 200-250 50-36 150-180 75-90
70/21.1 200-250 50-36 160-190 80-100
80/26.7 220-280 50-36 170-200 90-110
90/32.2 230-320 54-38 180-220 90-120
100/37.8 270-360 56-40 200-250 95-140
110/43.3 280-380 58-42 210-260 95-150