K0250A Self-Contained Air-Cooled - Koolaire STH045 8/15 Technician's Handbook

K0250A 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
122
Freeze Time
Water Temperature °F/°C
50/10
9.3-11.5
10.6-12.6
11.8-14.0
13.2-15.7
15.0-17.7
50/10
310
285
260
235
210
Freeze Cycle
Discharge
Pressure Pressure
PSIG
300-335
310-340
315-360
320-375
420-510
450-540
70/21
10.8-12.9
12.3-14.6
13.9-16.4
14.6-17.3
15.8-18.7
Water Temperature °F/°C
70/21
280
250
225
215
200
Suction Discharge
Pressure
PSIG
70-38 160-180
75-40 180-200
80-42 185-210
90-44 190-215
100-49 300-330
120-52 355-370
Part Number STH045 8/15
Harvest
90/32
12.3-14.6
13.5-16.0
15.0-17.7 1.0-2.5
16.2-19.2
17.7-20.9
90/32
250
230
210
195
180
Harvest Cycle
Suction
Pressure
PSIG PSIG
150-175
150-175
150-175
150-175
200-250
270-290
Time