Manitowoc J250 User Manual

Section 7 Refrigeration System
7-41
J1300 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
9.2-10.2 10.5-11.7 11.8-13.2
80/26.7
9.4-10.4 10.7-11.9 12.0-13.4
1-2.5
90/32.2
9.5-10.6 10.9-12.2 12.2-13.6
100/37.8
10.1-11.3 11.6-12.9 13.0-14.5
110/43.3
11.0-12.3 12.8-14.2 14.5-16.1
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
1350 1200 1080
80/26.7
1325 1180 1066
90/32.2
1310 1160 1050
100/37.8
1240 1100 990
110/43.3
1150 1010 900
1
Based on average ice slab weight of 10.0 - 11.0 lb.
2
Regular cube derate is 7%
3
Ratings with JC1395 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 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
1
Suction pressure drops gradually throughout the freeze cycle
J1800 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
9.0-10.0 10.1-11.3 11.4-12.6
80/26.7
9.5-10.5 10.8-11.9 12.1-13.2
1-2.5
90/32.2
10.4-11.4 11.9-13.0 13.6-14.9
100/37.8
11.9-13.0 13.8-15.2 15.6-17.1
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
1800 1620 1470
80/26.7
1720 1540 1400
90/32.2
1600 1420 1260
100/37.8
1420 1240 1110
1
Based on average ice slab weight of 13.19 - 14.31 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
220-280 40-20 155-190 60-80
70/21.1
220-280 40-20 160-190 65-80
80/26.7
230-290 42-20 160-190 65-80
90/32.2
260-320 44-22 185-205 70-90
100/37.8
300-360 46-24 210-225 75-100
110/43.3
320-400 48-26 215-240 80-100
1
Suction pressure drops gradually throughout the freeze cycle

Manitowoc J250 Specifications

General

Brand	Manitowoc
Model	J250
Category	Ice Maker
Language	English