Manitowoc J250 User Manual

Section 7Refrigeration System
7-36
J600 SERIES WATER-COOLED
NOTE: These characteristics may vary depending on
operating conditions.
Cycle Times
Freeze Time + Harvest Time = Cycle Time
Air Temp. Freeze Time Harvest
Around Ice
Machine
Water Temperature °
°°
°F/°
°°
°C
Time
°
°°
°F/°
°°
°C 50/10.0 70/21.1 90/32.2
70/21.1
8.1-9.5 9.2-10.8 11.7-13.7
80/26.7
8.2-9.7 9.4-11.1 12.0-14.1
1-2.5
90/32.2
8.4-9.9 9.6-11.3 12.3-14.4
100/37.8
8.6-10.1 9.8-11.5 12.6-14.8
1
Times in minutes
24 Hour Ice Production
Air Temp.
Around Ice
Water Temperature °
°°
°F/°
°°
°C
Machine
°
°°
°F/°
°°
°C
50/10.0 70/21.1 90/32.2
70/21.1
620 555 450
80/26.7
610 545 440
90/32.2
600 535 430
100/37.8
590 525 420
1
Based on average ice slab weight of 4.12 - 4.75 lb.
2
Regular cube derate is 7%
Condenser 90/32.2 Air Temperature Around Ice Machine
Water Water Temperature °
°°
°F/°
°°
°C
Consumption 50/10.0 70/21.1 90/32.2
Gal/24 hours
550 1000 4600
1
Water regulating valve set to maintain 230 PSIG discharge
pressure
Operating Pressures
Air Temp. Freeze Cycle Harvest Cycle
Around Ice
Machine
°
°°
°F/°
°°
°C
Discharge
Pressure
PSIG
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Suction
Pressure
PSIG
50/10.0
225-235 46-25 140-184 80-102
70/21.1
225-235 46-26 148-184 82-104
80/26.7
225-235 48-26 154-186 86-108
90/32.2
225-240 48-26 154-190 86-108
100/37.8
225-245 50-28 162-194 86-112
110/43.3
225-250 52-28 165-200 86-115
1
Suction pressure drops gradually throughout the freeze cycle
J600 SERIES REMOTE
NOTE: These characteristics may vary depending on
operating conditions.
Cycle Times
Freeze Time + Harvest Time = Cycle Time
Air Temp. Freeze Time Harvest
Entering
Condenser
Water Temperature °
°°
°F/°
°°
°C
Time
°
°°
°F/°
°°
°C 50/10.0 70/21.1 90/32.2
-20/-28.9 to
70/21.1
8.2-9.7 9.9-11.7 12.0-14.1
80/26.7
8.3-9.8 10.0-11.8 12.1-14.2
1-2.5
90/32.2
8.4-9.9 10.2-11.9 12.3-14.4
100/37.8
8.9-10.5 10.9-12.8 12.6-14.8
110/43.3
9.9-11.7 12.0-14.1 14.1-16.5
1
Times in minutes
24 Hour Ice Production
Air Temp.
Entering
Water Temperature °
°°
°F/°
°°
°C
Condenser
°
°°
°F/°
°°
°C
50/10.0 70/21.1 90/32.2
-20/-28.9 to
70/21.1
610 520 440
80/26.7
605 515 435
90/32.2
600 510 430
100/37.8
570 480 420
110/43.3
520 440 380
1
Based on average ice slab weight of 4.12 - 4.75 lb.
2
Regular cube derate is 7%
3
Ratings with JC0895 condenser, dice or half-dice cubes
Operating Pressures
Air Temp. Freeze Cycle Harvest Cycle
Entering
Condenser
°
°°
°F/°
°°
°C
Discharge
Pressure
PSIG
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Suction
Pressure
PSIG
-20/-28.9 to
50/10.0
220-250 42-26 152-170 75-90
70/21.1
245-260 44-26 155-172 82-94
80/26.7
245-265 46-26 156-174 82-95
90/32.2
250-265 48-26 157-174 84-96
100/37.8
265-295 52-26 158-176 84-98
110/43.3
300-335 52-28 158-176 84-102
1
Suction pressure drops gradually throughout the freeze cycle

Manitowoc J250 Specifications

General

Brand	Manitowoc
Model	J250
Category	Ice Maker
Language	English