Manitowoc SD0302A Technician's Handbook page 201

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S420W
All Self-Contained Water-cooled Models After Serial
Number 110667970
Characteristics may vary depending on operating conditions.
CYCLE TIMES
Freeze Time + Harvest Time = Total Cycle Time
Air Temp.
Entering
Condenser
°F/°C
8.9-9.5
70/21
9.1-9.8
80/27
9.4-10.0
90/32
1 Times in minutes
24 HOUR ICE PRODUCTION
Air Temp. Entering
Condenser °F/°C
70/21
80/27
90/32
1 Based on average ice slab weight of 3.4-3.6 lbs.
CONDENSER WATER CONSUMPTION
Air Temp. Around Ice
Machine 90°F/32°C
Gal/24 hours
1 Water regulating valve set to maintain 240 PSIG discharge pressure
OPERATING PRESSURES
Freeze Cycle
Air Temp
Entering
Discharge
Condenser
Pressure
°F/°C
PSIG
225-235
50/10
225-265
70/21
235-265
80/27
235-270
90/32
235-275
100/38
240-280
110/43
1 Suction pressure drops gradually throughout the freeze cycle
Part Number 80-1479-3 7/10
manuals search engine
Freeze Time
Water Temperature °F/°C
50/10 70/21
9.6-10.3 10.7-11.5
9.9-10.6 11.1-11.8
10.2-10.8 11.4-12.1
Water Temperature °F/°C
50/10 70/21
470
460
450
Water Temperature °F/°C
50/10 70/21
320 537
Suction Discharge
Pressure Pressure
PSIG PSIG
48-29 150-185
52-30 160-190
56-30 170-190
62-31 170-195
65-32 170-205
65-32 170-205
Harvest
1
Time
90/32
1-2.5
1
90/32
440 400
430 390
420 380
1
90/32
2930
Harvest Cycle
Suction
Pressure
1
PSIG
70-95
85-100
90-110
95-115
100-102
100-120
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