Manitowoc Marine Q 1000, Service Technician'S Handbook

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Q1800 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 8.7-9.6 9.6-10.5 10.8-11.9
1-2.5
80/26.7 9.0-9.9 9.6-10.6 10.8-11.9
90/32.2 9.1-10.1 9.7-10.7 10.9-12.0
100/37.8 9.2-10.1 9.8-10.7 11.1-12.1
Air Temp. Around Ice
Machine
°F/°C
Water Temperature °F/°C
Based on average ice slab weight of 13.0 - 14.12 lb.
Regular cube derate is 7%
50/10.0 70/21.1 90/32.2
70/21.1 1840 1690 1520
80/26.7 1780 1680 1520
90/32.2 1760 1670 1510
100/37.8 1750 1660 1490
Air Temp. Around Ice
Machine 90°F/32.2°C
Water Temperature °F/°C
Water regulating valve set to maintain 240 PSIG discharge pressure
50/10.0 70/21.1 90/32.2
Gal/24 hours 2000 2670 7750
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
50/10.0 235-245 36-20 170-190 65-80
70/21.1 235-245 38-20 170-190 65-80
80/26.7 235-245 40-20 170-190 65-80
90/32.2 235-250 42-22 175-190 65-80
100/37.8 235-255 44-22 175-190 65-80
110/43.3 235-260 46-22 175-190 65-80