Manitowoc Ice CM MODEL STH003 - Manual (Page 67)

67
NOTE: THESE CHARACTERISTICS MAY
VARY DEPENDING ON OPERATING
CONDITIONS.
Cycle Times
Freeze Time + Harvest Time = Cycle Time
FREEZE TIME
WATER TEMPERATURE °F/°C
HARVEST
TIME
AIR TEMP.
ENTERING
CONDENSER °F/°C 50/10.0 70/21.1 90/32.2
70/21.1 15.6-17.8 15.3-17.4 15.6-17.8
80/26.7 16.6-18.9 17.0-19.4 17.4-19.8
90/32.2 17.4-19.8 19.1-21.7 18.2-20.7
100/37.8 19.2-22.1 19.8-22.7 22.4-25.4
110/43.3 24.9-28.2 25.7-29.1 31.4-35.5
1.0-3.5
Times in minutes
24 Hour Ice Production
WATER TEMPERATURE °F/°C AIR TEMP. ENTERING
CONDENSER °F/°C
50/10.0 70/21.1 90/32.2
70/21.1 53 54 53
80/26.7 50 49 48
90/32.2 48 44 46
100/37.8 40 39 38
110/43.3 35 34 28
Based on the average weight of 1 harvest cycle 0.63 – 0.71 lb.
Nominal Individual Cube Weight 0.70 ounces
Cubes Per Harvest Cycle 16
Operating Pressures
FREEZE CYCLE HARVEST CYCLE AIR TEMP.
ENTERING
CONDENSER
°F/°C
DISCHARGE
PRESSURE
PSIG
SUCTION
PRESSURE
PSIG
DISCHARGE
PRESSURE
PSIG
SUCTION
PRESSURE
PSIG
50/10.0 125-70 18-0 50-75 20-55
70/21.1 135-95 18-0 65-85 35-60
80/26.7 165-115 19-2 75-100 40-70
90/32.2 195-135 20-3 85-120 40-70
100/37.8 235-165 24-5 100-135 50-80
110/43.3 255-185 28-7 110-155 50-90
Suction pressure drops gradually throughout the freeze cycle