Manitowoc Marine Q 1000, Service Technician'S Handbook

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Q1800 Series - Remote
These 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
-20/-28.9 to 70/
21.1
9.1-10.0 9.8-10.8 10.7-11.7
1-2.5
80/26.7 9.3-10.2 10.1-11.1 10.9-12.0
90/32.2 9.5-10.5 10.3-11.4 11.1-12.2
100/37.8 10.1-11.1 11.1-12.2 11.9-13.0
110/43.3 11.0-12.1 12.1-13.2 12.7-13.9
Air Temp. Entering
Condenser °F/°C
Water Temperature °F/°C
Based on average ice slab weight of 13.0 - 14.12 lb.
Regular cube derate is 7%
Ratings with JC1895 condenser, dice or half-dice cubes
50/10.0 70/21.1 90/32.2
-20/-28.9 to 70/21.1 1770 1650 1540
80/26.7 1735 1615 1510
90/32.2 1700 1580 1480
100/37.8 1620 1480 1400
110/43.3 1500 1380 1320
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
220-250 38-24 160-180 60-80
70/21.1 220-260 40-24 170-180 60-80
80/26.7 250-270 48-24 175-190 70-90
90/32.2 250-280 50-24 180-200 80-90
100/37.8 270-300 52-28 205-215 80-95
110/43.3 300-350 54-28 205-230 80-100