Welbilt Koolaire KD0270A, Technician'S Handbook, Page: 125 / 136

Part Number STH047 Rev01 10/18 125
K170A 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
Freeze Time Harvest
Time
Water Temperature °F/°C
50/10 70/21 90/32
70/21
17.6-20-1 20.5-23.3 24.5-28.0
1.0-2.5
80/27
19.8-22.5 20.9-23.9 27.8-31.5
90/32
20.9-23.9 24.5-28.0 28.1-31.9
100/38
25.5-29.0 30.4-34.5 33.7-38.3
110/43
32.0-36.2 39.8-45.1 48.7-55.1
Times in minutes
24 Hour Ice Production
Air Temp.
Entering
Condenser
°F/°C
Water Temperature °F/°C
50/10 70/21 90/32
70/21 175 160 130
80/27 165 150 120
90/32 150 130 115
100/38 130 110 97
110/43 105 85 70
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
Freeze Cycle Harvest Cycle
Discharge
Pressure
PSIG
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Suction
Pressure
PSIG
50/10 220-280 60-38 150-170 90-110
70/21 220-280 60-38 150-170 95-115
80/27 240-290 70-38 160-190 100-120
90/32 280-330 75-38 180-210 160-140
100/38 310-380 85-41 200-230 120-160
110/43 315-390 90-41 200-240 140-170
Suction pressure drops gradually throughout the freeze cycle