Manual 2100-711C
Page
34 of 45
TABLE 12
Cooling Pressure – Balanced Climate Airflow
Air Temperature Entering Outdoor Coil °F
Low side pressure ± 4 PSIG
High side pressure ± 10 PSIG
Tables are based upon Balanced Climate CFM (airflow) across the evaporator coil. If there is any doubt as to correct
operating charge being in the system, the charge should be removed and system evacuated and recharged to serial plate
charge weight.
NOTE:
Pressure table based on high speed condenser fan operation. If condensing pressures appear elevated check
condenser fan wiring. See
Condenser Fan Operation
on page 24.
* Operating at these conditions would be outside the compressor operating envelope and is not recommended.
Model
Return Air Temp
(DB/WB)
Pressure
75
80
85
90
95
100
105
110
115
120
125
131
W42HC
75/62
Low Side
High Side
116
307
118
331
121
355
123
380
126
406
128
432
130
459
132
487
134
515
136
544
138
574
140
611
80/67
Low Side
High Side
124
315
127
339
129
364
132
390
134
416
137
443
139
471
141
499
143
529
145
558
147
589
150
626
85/72
Low Side
High Side
128
326
131
351
134
377
136
404
139
431
141
459
144
488
146
517
148
547
151
578
153
609
--*
W48HC
75/62
Low Side
High Side
122
314
123
335
125
358
127
381
129
405
131
431
133
457
135
484
137
513
139
542
141
572
143
610
80/67
Low Side
High Side
130
322
132
344
134
367
136
391
138
416
140
442
142
469
144
497
146
526
148
556
150
587
153
625
85/72
Low Side
High Side
134
333
136
356
139
380
141
405
143
430
145
457
147
485
149
514
151
544
153
575
156
607
--*
W60HC
75/62
Low Side
High Side
115
307
118
329
120
352
123
376
125
401
127
427
129
454
131
482
132
512
134
542
135
573
136
611
80/67
Low Side
High Side
123
314
126
337
129
361
131
386
134
411
136
438
138
466
140
495
142
525
143
555
144
587
145
627
85/72
Low Side
High Side
127
325
130
349
133
374
136
399
139
426
141
454
143
482
145
512
147
543
148
575
149
608
--*