User Manual

33
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Operational Limitations
Water Flow Data
UCW/H 030 UCW/H 050 UCW/H 070 UCW/H 085
Minimum Evaporator Water Flow (gpm)
40 65 85 100
Maximum Evaporator Water Flow (gpm)
165 250 250 350
Minimum Condenser Water Flow (gpm)
30 50 70 85
Maximum Condenser Water Flow (gpm)
165 250 250 485
Minimum Leaving Evaporator Water Temperature (No Glycol)(°F)
40 40 40 40
Minimum Leaving Evaporator Water Temperature (with Glycol)(°F)
20 20 20 20
Maximum Leaving Evaporator Water Temperature (°F)
62 62 62 62
Minimum Evaporator Water Differential Temperature (°F)
5 5.4 5.9 4.5
Maximum Evaporator Water Differential Temperature (°F)
20 20 20 20
Minimum Entering Condenser Water Temperature (°F)
60 60 60 60
Minimum Condenser Water Differential Temperature (°F)
6.5 6.9 7.2 5.5
Maximum Condenser Water Differential Temperature (°F)
30 30 30 30
Water Flow Data
UCW 030 UCW 050 UCW 070 UCW 085
Maximum Leaving Condenser Water Temperature (
0
F)
110 110 110 110
Water Flow Data
UCH 030 UCH 050 UCH 070 UCH 085
Maximum Leaving Condenser Water Temperature (
0
F)
135 135 135 135
Equipment Room Data
UCW/H 030 UCW/H 050 UCW/H 070 UCW/H 085
Minimum Equipment Room Ambient Temperature (
0
F)
55 55 55 55
Maximum Equipment Room Ambient Temperature (
o
F)
105 105 105 105
UCW UCH UCW UCH
Maximum Compression Ratio 5.0:1 5.7:1 4.8:1 5.7:1
Minimum Operating Pressure Differential (psi) 85 85 85 85
Maximum Operating Pressure Differential (psi) 290 475 290 475
Minimum Discharge Pressure (psig) 215 215 215 215
Maximum Discharge Pressure (psig) 395 590 395 590
Minimum Suction Pressure (No Glycol)(psig) 90 90 90 90
Minimum Suction Pressure (With Glycol)(psig) 70 70 70 70
Maximum Suction Pressure (psig) 155 155 155 155
Maximum Discharge Temperature (°F) 225 265 225 265
Minimum Subcooling (°F) 5 5 5 5
Maximum Subcooling (°F) 15 15 15 15
Minimum Superheat at Compressor (°F) 6 6 6 6
Maximum Superheat at Compressor (°F) 12 12 12 12
Maximum Oil Temperature (Max) (°F) 160 200 160 200
Maximum Saturation Discharge Temperature (°F) 120 145 114 145
Compressor Operating Limitations
30, 50, 70 Tons
85 Tons
Nominal Voltage Minimum Voltage Maximum Voltage
208/230/3/60 187 253
460/3/60 414 506
575/3/60 518 632
Voltage Limitations
The following voltage limitations are absolute and operation beyond these
limitations may cause serious damage to the compressor.