Manitowoc Q450 - Self-Contained Water-Cooled

–138–
Q1000 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 10.0-10.7 10.6-11.4 12.1-13.0
1-2.5
80/26.7 10.1-10.9 10.8-11.6 12.3-13.2
90/32.2 10.2-11.0 10.9-11.7 12.5-14.3
100/37.8 10.4-11.1 11.0-11.8 12.6-14.4
Air Temp. Around Ice
Machine °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
70/21.1 970 920 820
80/26.7 960 910 810
90/32.2 950 900 800
100/37.8 940 890 790
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 750 1500 6200
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 36-18 160-185 65-85
70/21.1 225-235 38-18 165-185 70-85
80/26.7 225-235 40-18 165-185 70-85
90/32.2 225-235 40-20 165-185 70-85
100/37.8 225-235 40-20 165-185 70-85
110/43.3 225-240 42-20 170-190 75-90