Manitowoc J250 User Manual

Section 7 Refrigeration System
7-35
J450 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
10.9-12.8 12.6-14.8 14.1-16.5
80/26.7
11.1-13.1 13.0-15.2 14.5-17.0
1-2.5
90/32.2
11.4-13.4 13.3-15.6 15.0-17.5
100/37.8
12.6-14.8 15.0-17.5 17.0-19.9
110/43.3
14.1-16.5 17.1-19.9 19.0-22.1
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
480 420 380
80/26.7
470 410 370
90/32.2
460 400 360
100/37.8
420 360 320
110/43.3
380 320 290
1
Based on average ice slab weight of 4.12 - 4.75 lb.
2
Regular cube derate is 7%
3
Ratings with JC0495 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
220-245 50-30 175-190 85-100
70/21.1
230-250 50-31 175-190 85-100
80/26.7
240-260 52-32 180-195 85-100
90/32.2
245-270 54-32 185-200 85-100
100/37.8
280-310 57-32 190-205 90-105
110/43.3
290-325 64-39 190-205 95-110
1
Suction pressure drops gradually throughout the freeze cycle
J600 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
8.1-9.5 9.5-11.2 10.9-12.8
80/26.7
8.4-9.9 9.7-11.4 11.2-13.1
1-2.5
90/32.2
9.3-10.9 10.6-12.5 12.3-14.4
100/37.8
10.6-12.5 12.3-14.4 14.5-17.0
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
620 540 480
80/26.7
600 530 470
90/32.2
550 490 430
100/37.8
490 430 370
1
Based on average ice slab weight of 4.12 - 4.75 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
195-260 42-22 155-180 75-95
70/21.1
220-290 44-22 160-185 85-100
80/26.7
220-305 52-22 160-190 90-110
90/32.2
250-325 52-23 175-195 95-115
100/37.8
280-355 54-30 195-210 95-125
110/43.3
300-385 56-32 200-225 100-135
1
Suction pressure drops gradually throughout the freeze cycle

Manitowoc J250 Specifications

General

Brand	Manitowoc
Model	J250
Category	Ice Maker
Language	English