Manitowoc QD0202A, Service Manual

Page: 156 / 175

Refrigeration System Section 7
7-44
Part No. 80-1100-3
Q1300 SERIES
Remote
NOTE: These characteristics may vary depending on
operating conditions.
Cycle Times
Freeze Time + Harvest Time = Total Cycle Time
24 Hour Ice Production
Operating Pressures
Q1600 SERIES
Self-Contained Water-Cooled
NOTE: 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
Water Temperature °F/°C
50/10.0 70/21.1 90/32.2
-20/-28.9 to
70/21.1
9.9-11.1 10.9-12.2 11.7-13.0
1-2.5
80/26.7 10.0-11.2 11.0-12.3 11.1-12.4
90/32.2 10.1-11.3 11.1-12.4 10.7-11.9
100/37.8 10.8-12.0 11.8-13.2 12.8-14.2
110/43.3 11.7-13.0 12.9-14.3 13.8-15.4
Times in minutes
Air Temp.
Entering
Condenser
°F/°C
Water Temperature °F/°C
50/10.0 70/21.1 90/32.2
-20/-28.9 to
70/21.1
1260 1160 1090
80/26.7 1250 1150 1140
90/32.2 1240 1140 1180
100/37.8 1170 1080 1010
110/43.3 1090 1000 940
Based on average ice slab weight of 10.0- 11.0 lb
Ratings with JC1395 condenser, dice or half dice cubes
Air Temp.
Entering
Condenser
°F/°C
Freeze Cycle Harvest Cycle
Discharg
e
Pressure
PSIG
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Suction
Pressure
PSIG
-20/-28.9 to
50/10.0
220-250 40-22 135-170 75-95
70/21.1 240-260 40-22 140-180 80-95
80/26.7 240-270 41-22 140-190 80-95
90/32.2 250-290 42-22 140-200 80-95
100/37.8 280-320 46-22 140-210 80-95
110/43.3 310-360 48-24 140-220 85-100
Suction pressure drops gradually throughout the freeze cycle
Air Temp.
Entering
Condenser
°F/°C
Freeze Time
Harvest
Time
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
Times in minutes
Air Temp.
Entering
Condenser
°F/°C
Water Temperature °F/°C
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
Based on average ice slab weight of 13.0 -14.12 lb
Condenser
Water
Consumption
90/32.2 Air Temperature
Around Ice Machine
Water Temperature °F/°C
50/10.0 70/21.1 90/32.2
Gal/24 hours 1400 2235 6500
Water regulating valve set to maintain 240 PSIG discharge pressure
Air Temp.
Entering
Condenser
°F/°C
Freeze Cycle Harvest Cycle
Discharge
Pressure
PSIG
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Suction
Pressure
PSIG
-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
Suction pressure drops gradually throughout the freeze cycle