Manitowoc Marine Q 1000, Service Technician'S Handbook

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Q1000 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 9.9-10.6 10.6-11.4 11.3-12.2
1-2.5
80/26.7 10.2-11.0 11.2-12.0 11.9-12.8
90/32.2 10.9-11.7 11.9-12.8 12.8-13.7
100/37.8 12.1-13.0 13.2-14.1 14.2-15.2
Air Temp. Entering
Condenser °F/°C
Water Temperature °F/°C
Based on average ice slab weight of 7.75 - 8.25 lb.
Regular cube derate is 7%
50/10.0 70/21.1 90/32.2
70/21.1 980 920 870
80/26.7 950 880 830
90/32.2 900 830 780
100/37.8 820 760 710
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
50/10.0 220-280 38-18 135-180 65-90
70/21.1 220-280 40-18 140-180 70-90
80/26.7 225-280 42-20 140-180 70-95
90/32.2 260-295 42-22 150-200 80-100
100/37.8 300-330 42-24 210-225 80-100
110/43.3 320-360 44-24 210-240 85-120