Manitowoc Q450 - Self-Contained Water-Cooled

–121–
Q200 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 11.5-13.5 12.8-15.0 14.5-16.9
1-2.5
80/26.7 12.0-14.1 13.5-15.7 15.2-17.8
90/32.2 12.6-14.7 14.1-16.5 16.1-18.7
100/37.8 13.1-15.4 14.8-17.3 17.0-19.8
Air Temp. Around Ice
Machine °F/°C
Water Temperature °F/°C
Based on average ice slab weight of 2.44 - 2.81 lb.
Regular cube derate is 7%
50/10.0 70/21.1 90/32.2
70/21.1 270 245 220
80/26.7 260 235 210
90/32.2 250 225 200
100/37.8 240 215 190
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 240 480 2100
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 60-28 170-200 90-110
70/21.1 225-235 60-28 170-200 90-110
80/26.7 225-240 60-28 175-205 90-110
90/32.2 225-245 65-30 175-205 90-115
100/37.8 225-250 70-32 180-210 90-115
110/43.3 225-260 75-34 185-215 90-120