K0420A Self-Contained Air-Cooled - Koolaire STH045 8/15 Technician's Handbook

K0420A 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
110/43
Times in minutes
24 Hour Ice Production
Air Temp. Entering
Condenser °F/°C
70/21
80/27
90/32
100/38
110/43
Based on average ice slab weight of 3.40 - 3.90 lb (1542 - 1769g).
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 STH045 8/15
Freeze Time
Water Temperature °F/°C
50/10
11.7-13.7
12.9-15.0
14.0-16.3
15.7-18.2
17.7-20.5
50/10
370
340
315
285
255
Freeze Cycle
Discharge
Pressure Pressure
PSIG
275-360
290-380
300-390
330-400
400-500
430-520
70/21
12.5-14.5
13.8-16.1
14.6-16.9
17.0-19.7
18.9-21.9
Water Temperature °F/°C
70/21
350
320
305
265
240
Suction Discharge
Pressure
PSIG
60-31 180-220
65-32 200-220
65-33 215-235
70-34 235-245
80-34 355-370
95-34 370-375
Harvest
90/32
13.6-15.8
15.4-17.9
16.6-19.3 1.0-2.5
18.1-21.0
20.3-23.5
90/32
325
290
270
250
225
Harvest Cycle
Suction
Pressure
PSIG PSIG
130-160
140-160
150-170
160-180
240-270
255-275
Time
125