K270 Self-Contained Water-Cooled - Koolaire KY0275W Technician's Handbook

K270 SELF-CONTAINED WATER-COOLED

NOTE: These characteristics may vary depending on
operating conditions.
Cycle Times
Freeze Time + Harvest Time = Total Cycle Time
Air Temp.
Around Ice
Machine
°F/°C
70/21
80/27
90/32
100/38
Times in minutes
24 Hour Ice Production
Air Temp. Around Ice
Machine °F/°C
70/21
80/27
90/32
100/38
Based on average ice slab weight of 2.44 – 2.75 lb (1107 – 1247 g).
Regular cube derate is 7%
Condenser
Water
Consumption
Gal/24 hours
Water regulating valve set to maintain 240 PSIG discharge
pressure
Operating Pressures
Air Temp.
Around Ice
Machine
°F/°C
50/10
70/21
80/27
90/32
100/38
Suction pressure drops gradually throughout the freeze cycle
126
Freeze Time
Water Temperature °F/°C
50/10
10.6-12.2
10.8-12.4
11.0-12.6
11.3-12.9
50/10
90/32 Air Temperature Around Ice Machine
Water Temperature °F/°C
50/10
240
Freeze Cycle
Discharge
Pressure Pressure
PSIG
235-245
235-245
235-250
235-255
235-260
70/21
12.3-14.0 13.5-15.4
12.6-14.3 13.8-15.7
12.8-14.7 14.1-16.1
13.1-15.0 14.5-16.5
Water Temperature °F/°C
70/21
290
285
280
275
70/21
410
Suction Discharge
Pressure
PSIG
52-24 175-210
54-24 175-210
56-24 175-210
58-24 175-210
60-24 175-210
Part Number STH047 5/16
Harvest
Time
90/32
1.0-2.5
90/32
255 235
250 230
245 225
240 220
90/32
2740
Harvest Cycle
Suction
Pressure
PSIG PSIG
80-95
80-95
80-95
80-95
80-95