Manitowoc Q450 - Self-Contained Water-Cooled

–127–
Q370 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 10.3-11.7 11.0-12.5 12.2-13.9
1-2.5
80/26.7 10.6-12.1 11.3-12.9 12.6-14.4
90/32.2 11.0-12.5 11.7-13.4 13.1-14.4
100/37.8 11.3-12.9 12.2-13.9 13.6-15.5
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
70/21.1 360 340 310
80/26.7 350 330 300
90/32.2 340 320 290
100/37.8 330 310 280
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 220 490 3700
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 60-32 150-170 85-100
70/21.1 225-235 60-33 150-170 85-105
80/26.7 225-240 65-36 155-175 90-110
90/32.2 225-240 68-38 155-175 90-110
100/37.8 235-260 75-40 175-200 100-120
110/43.3 240-265 85-40 185-205 105-125