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EH222 and Condensing Unit
Remote Low Side Cuber Service Manual
Operational Characteristics 800 lb system
Cycle Times @ Condenser Temp/Cabinet Temp/Water Temp in degrees F.
-20/50/40
Freeze
9 to 10 minutes
Harvest
2 to 3 minutes
System Pressures @ Condenser Temp/Cabinet Temp/Water Temp in degrees F
Suction at head, end of Freeze
Suction at head, Harvest - Peak
Discharge at Condensing Unit:
Freeze - 5 minutes in
Operational Characteristics 1000 lb system
Cycle Times @ Condenser Temp/Cabinet Temp/Water Temp in degrees F.
20/70/40
Freeze
7 to 8 minutes
Harvest
2 to 3 minutes
System Pressures @ Condenser Temp/Cabinet Temp/Water Temp in degrees F
Suction at head, end of Freeze
Suction at head, Harvest - Peak
Discharge at Condensing Unit:
Freeze - 5 minutes in
Below information applies to both size systems:
Headmaster maintains a minimum discharge pressure during freeze of 217 PSIG + 25, -15 PSIG.
CPR Valve Setting: 55 - 60 PSIG.
Note: CPR allows a maximum low side pressure at the compressor. Maximum only occurs during harvest.
Refrigerant Charge
•
800: 192 oz.
•
1000: 224 oz
Compressor Amps, 800 model
•
Single Phase - 6 to 8 Three Phase - 5 to 7
Compressor Amps, 1000 model
•
Single Phase - 8 to 9, Three Phase - 6.3 to 5.2
Batch Weight: 8 lb
Discharge Pressure Cut Out Switch
•
Cuts Out at: 450 PSIG Resets at: 350 PSIG
70/70/50
10 to 12 minutes
1 to 1.5 minutes
-20/50/40
70/70/50
26 to 27 PSIG
26 to 31 PSIG
88 PSIG
85 to 105 PSIG
217 PSIG
230 to 250 PSIG
70/70/50
8 to 9 minutes
1 to 1.5 minutes
-20/50/40
70/70/50
22 PSIG
26 to 31 PSIG
88 PSIG
85 to 105 PSIG
219 PSIG
230 to 250 PSIG 240 to 250 PSIG 345 to 380 PSIG
January 2014
August 2013
Page 29
90/90/70
13 to 15 minutes
1 to 1.5 minutes
90/90/70
26 to 31 PSIG
105 to 125 PSIG
250 to 270 PSIG
90/90/70
10 to 11 minutes
1 to 1.5 minutes
90/90/70
27 to 32 PSIG
90 to 110 PSIG
120/110/100
19 to 21 minutes
.5 to 1 minute
120/110/100
30 to 35 PSIG
140 t0 160 PSIG
330 to 350 PSIG
120/110/100
16 to 18 minutes
.5 to 1 minute
120/110/100
30 to 35 PSIG
140 to 160 PSIG
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