Manitowoc J250 User Manual

Section 7Refrigeration System
7-38
J800 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
8.8-10.2 10.3-11.9 12.1-13.8
80/26.7
8.9-10.3 10.4-12.0 12.2-14.0
1-2.5
90/32.2
9.0-10.3 10.5-12.1 12.3-14.1
100/37.8
9.7-11.1 11.4-13.1 13.6-15.5
110/43.3
10.9-12.5 13.6-15.5 15.0-17.2
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
800 700 610
80/26.7
795 695 605
90/32.2
790 690 600
100/37.8
740 640 550
110/43.3
670 550 500
1
Based on average ice slab weight of 5.75 - 6.50 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 30-22 180-200 65-90
70/21.1
230-250 32-22 190-200 70-90
80/26.7
240-260 33-22 190-205 70-90
90/32.2
255-265 34-22 195-205 70-90
100/37.8
275-295 38-24 200-210 70-90
110/43.3
280-320 40-26 200-225 75-100
1
Suction pressure drops gradually throughout the freeze cycle
J1000 SERIES
SELF-CONTAINED AIR-COOLED
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
70/21.1
8.8-9.5 10.1-10.9 11.2-12.0
80/26.7
9.1-9.8 10.5-11.3 11.6-12.5
1-2.5
90/32.2
9.7-10.4 11.2-12.0 12.5-13.4
100/37.8
10.6-11.4 12.5-13.4 14.0-15.0
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
70/21.1
1080 960 880
80/26.7
1050 930 850
90/32.2
1000 880 800
100/37.8
920 800 720
1
Based on average ice slab weight of 7.75 - 8.25 lb.
2
Regular cube derate is 7%
Operating Pressures
Air Temp. Freeze Cycle Harvest Cycle
Entering
Condenser
°
°°
°F/°
°°
°C
Discharge
Pressure
PSIG
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Suction
Pressure
PSIG
50/10.0
220-240 38-18 135-180 65-90
70/21.1
220-240 40-18 140-180 70-90
80/26.7
225-260 42-20 140-180 70-95
90/32.2
260-295 42-22 150-200 80-100
100/37.8
300-330 42-24 210-225 80-100
110/43.3
320-360 44-24 210-240 85-120
1
Suction pressure drops gradually throughout the freeze cycle

Manitowoc J250 Specifications

General

Brand	Manitowoc
Model	J250
Category	Ice Maker
Language	English