228 Part Number 000014797 Rev02 05/18
NOTE: These characteristics may vary depending on
operating conditions.
Cycle Times
Freeze Time + Harvest Time = Total Cycle Time
Air Temp.
Around Ice
Machine
Freeze Time Harvest
Time
70/21 11.5-13.2 11.3-12.9 12.0-13.7
1.0-2.5
80/27 10.0-11.5 11.5-13.2 12.3-14.0
90/32 10.2-11.7 12.6-14.3 13.1-15.0
100/38 10.4-11.9 12.6-14.3 13.5-15.4
110/43 10.6-12.2 12.8-14.7 13.8-15.7
Times in minutes
Air Temp.
Around Ice
70/21 270 275 260
80/27 305 270 255
90/32 300 250 240
100/38 295 250 235
110/43 290 245 230
Based on average ice slab weight of 2.44 - 2.75 lb (1107 – 1247 g).
Regular cube derate is 7%
Water regulating valve set to maintain 235 PSIG discharge pressure
Condenser water usage = 149 gallons per 100 lbs of ice a 90°F/70°F
Operating Pressures
Air Temp.
Around Ice
Machine
Freeze Cycle Harvest Cycle
Discharge
Pressure
PSIG
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Suction
Pressure
PSIG
50/10 230-240 50-24 150-175 75-90
70/21 230-240 50-25 150-175 75-90
80/27 235-240 50-26 155-175 75-95
90/32 235-240 55-27 165-180 80-100
100/38 235-250 60-27 165-180 80-100
110/43 235-255 60-28 165-180 80-100
Suction pressure drops gradually throughout the freeze cycle
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