Manitowoc Marine Q 1000, Service Technician'S Handbook

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Q370 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 10.3-11.7 11.7-13.4 12.6-14.4
1-2.5
80/26.7 11.3-12.9 12.6-14.4 13.9-15.8
90/32.2 12.9-14.7 13.9-15.8 15.4-17.6
100/37.8 14.5-16.5 16.1-18.4 17.3-19.7
Air Temp. Entering
Condenser °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
70/21.1 360 320 300
80/26.7 330 300 275
90/32.2 295 275 250
100/37.8 265 240 225
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
50/10.0 200-250 60-34 145-165 75-95
70/21.1 215-250 60-36 150-170 85-100
80/26.7 250-290 65-38 165-185 90-110
90/32.2 260-330 70-40 175-195 100-120
100/37.8 300-380 80-41 195-220 130-150
110/43.3 310-390 80-42 200-225 135-155