Manual 2100-689H
Page
28 of 42
TABLE 10
Cooling Pressure
–
Standard Airflow
Air Temperature Entering Outdoor Coil °F
Low side pressure ± 4 PSIG
High side pressure ± 10 PSIG
Tables are based upon rated 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 22.
* 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
W18A/L
75/62
Low Side
High Side
120
296
122
318
126
340
129
364
132
388
134
413
137
440
138
466
139
494
141
524
142
553
144
590
80/67
Low Side
High Side
128
304
131
326
135
349
138
373
141
398
143
424
146
451
148
478
149
507
151
537
152
567
154
605
85/72
Low Side
High Side
132
315
136
337
140
361
143
386
146
412
148
439
151
467
153
495
154
525
156
556
157
587
159
626
W24A/L
75/62
Low Side
High Side
123
302
125
323
127
344
129
367
132
391
134
415
136
441
137
467
139
494
141
523
143
552
146
589
80/67
Low Side
High Side
132
310
134
331
136
353
138
376
141
401
143
426
145
452
147
479
149
507
151
536
153
566
156
604
85/72
Low Side
High Side
137
321
139
343
141
365
143
389
146
415
148
441
150
468
152
496
154
525
156
555
158
586
161
625
W30A/L
75/62
Low Side
High Side
122
317
124
337
126
360
129
383
131
409
133
435
135
462
137
490
138
520
140
551
142
583
143
622
80/67
Low Side
High Side
130
325
133
346
135
369
138
393
140
419
142
446
144
474
146
503
148
533
150
565
152
598
153
638
85/72
Low Side
High Side
135
336
138
358
140
382
143
407
145
434
147
462
149
491
151
521
153
552
155
585
157
619
--*
W36A/L
75/62
Low Side
High Side
128
318
130
339
132
362
133
385
135
410
137
436
138
463
140
491
142
521
144
552
146
583
148
623
80/67
Low Side
High Side
137
326
139
348
141
371
142
395
144
421
146
447
148
475
150
504
152
534
154
566
156
598
158
639
85/72
Low Side
High Side
142
337
144
360
146
384
147
409
149
436
151
463
153
492
155
522
157
553
159
586
161
619
--*
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