Sy3074C/Cvd3085 Series Remote Air Cooled - Manitowoc QuietQube SD0672C Technician's Handbook

SY3074C/CVD3085 SERIES REMOTE AIR COOLED

NOTE: These characteristics may vary depending on
operating conditions.
CYCLE TIMES
Freeze Time + Harvest Time = Cycle Time
Air Temp.
Entering
Condenser
°F/°C
-20 to 70/
-29 to 21
90/32
100/38
110/43
1
Times in minutes.
24-HOUR ICE PRODUCTION
Air Temp.
Entering
Condenser
°F/°C
-20 to 70/
-29 to 21
90/32
100/38
110/43
1
Based on average ice weight of one Harvest cycle 24.5-27.5 lb.
(6.38-7.13 lb. per evaporator).
OPERATING PRESSURES
Air Temp.
Entering
Condenser
°F/°C
-20 to 70/
-29 to 21
80/27
90/32
100/38
110/43
During low ambient conditions, it is normal for the head pressure
control valve to hunt (fluctuate up and down) on CVD condensing
units. Hunting varies by model and ambient temperature, but
generally settles out within the first 6 minutes of the freeze cycle
NOTE: CVD3085 Models - Verify the direction of rotation correct is
correct on the 3ph scroll compressor. The ice machine will have high
suction pressure, low discharge pressure and will be noticeably loud.
Reverse any two incoming power leads to reverse rotation.
270
Freeze Time
Water Temperature °F/°C
50/10
10.6-12.1
11.8-13.4
12.5-14.2
13.4-15.3
50/10
2910
2660
2520
2360
Freeze Cycle
Discharge
Pressure Pressure
psig
250-220
300-240
320-280
350-310
400-350
70/21
11.2-12.8 12.6-14.3
13.1-14.9 14.8-16.8
14.0-15.9 16.0-18.1
15.1-17.2 17.5-19.8
Water Temperature °F/°C
70/21
2770
2420
2280
2120
Suction Discharge
Pressure
psig
48-30 135-150
50-30 145-170
55-32 165-190
60-33 180-200
65-35 180-210
Part Number 80-1505-3 6/11
Harvest
Time
90/32
0.75-2.5
90/32
2510
2160
2020
1860
Harvest Cycle
Suction
Pressure
psig psig
70-85
70-90
80-100
90-110
100-115