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

K270 SELF-CONTAINED AIR-COOLED

NOTE: These characteristics may vary depending on
operating conditions.
Cycle Times
Freeze Time + Harvest Time = Total Cycle Time
Air Temp.
Entering
Condenser
°F/°C
70/21
80/27
90/32
100/38
Times in minutes
24 Hour Ice Production
Air Temp.
Entering
Condenser
°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%
Operating Pressures
Air Temp.
Entering
Condenser
°F/°C
50/10
70/21
80/27
90/32
100/38
110/43
Suction pressure drops gradually throughout the freeze cycle
Part Number STH047 5/16
Freeze Time
Water Temperature °F/°C
50/10
11.0-12.6 12.8-14.7
11.3-12.9 13.1-15.0
12.6-14.3 14.8-16.9
14.1-16.1 17.0-19.3
Water Temperature °F/°C
50/10
280
275
250
225
Freeze Cycle
Discharge
Pressure Pressure
PSIG
200-255
200-255
200-295
240-330
265-375
320-380
70/21
14.5-16.5
14.8-16.9
17.0-19.3
19.8-22.5
70/21
245
240
215
190
Suction Discharge
Pressure
PSIG
60-22 165-200
60-22 170-205
61-23 175-210
65-26 205-240
66-30 220-260
80-42 230-255
Harvest
Time
90/32
1.0-2.5
90/32
220
215
190
165
Harvest Cycle
Suction
Pressure
PSIG PSIG
70-95
70-100
75-100
80-100
85-115
115-135
125