Manitowoc Q450 - Q800 Series - Self-Contained Air-Cooled

–134–
Q800 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 8.9-10.2 9.7-11.1 10.3-11.9
1-2.5
80/26.7 9.3-10.7 10.2-11.7 10.9-12.5
90/32.2 10.3-11.9 11.4-13.1 12.3-14.1
100/37.8 12.1-13.8 13.3-15.2 14.4-16.5
Air Temp. Entering
Condenser
°F/°C
Water Temperature °F/°C
Based on average ice slab weight of 5.75 - 6.50 lb.
Regular cube derate is 7%
50/10.0 70/21.1
90/32.2
70/21.1
800 740
700
80/26.7
770 710
670
90/32.2
700 640
600
100/37.8
610 560
520
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 31-18 135-180 65-90
70/21.1 220-280 32-18 140-180 70-90
80/26.7 225-280 36-20 140-180 70-95
90/32.2 260-295 38-22 150-200 80-100
100/37.8 300-330 40-24 210-225 80-100
110/43.3 320-360 44-26 210-240 85-120