Manitowoc Marine Q 1000, Service Technician'S Handbook

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Q1600 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. 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 7.2-8.1 8.0-9.0 8.9-9.9
1-2.5
80/26.7 7.3-8.2 8.1-9.1 9.2-10.2
90/32.2 7.4-8.2 8.2-9.1 9.6-10.7
100/37.8 7.4-8.3 8.4-9.4 9.7-10.8
Air Temp. Entering
Condenser °F/°C
Water Temperature °F/°C
Based on average ice slab weight of 10.0 - 11.0 lb.
Ratings with JC1395 condenser, dice or half-dice cubes
50/10.0 70/21.1 90/32.2
70/21.1 1650 1510 1390
80/26.7 1635 1500 1350
90/32.2 1625 1490 1300
100/37.8 1620 1450 1290
70/21.1 1650 1510 1390
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 1400 2235 6500
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
-20/-28.9 to
50/10.0
235-245 48-24 145-170 70-90
70/21.1 235-265 52-26 150-175 70-90
80/26.7 235-270 52-26 150-175 75-95
90/32.2 235-280 52-28 155-180 75-95
100/37.8 240-285 52-28 155-180 80-100
110/43.3 240-290 54-28 155-185 80-100