Manual 2100-547G
Page
21 of 26
TABLE 5A
Cooling Pressures
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, 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”.
Air Temperature Entering Outdoor Coil °F
TABLE 5B
Heating Pressures (All Temperatures °F)
Model
Return Air
Temperature
Pressure
75
80
85
90
95
100
105
110
115
120
T30S
75 deg. DB
62 deg. WB
Low SIde
High Side
124
319
127
333
130
350
133
370
135
392
137
416
137
443
138
473
139
505
140
540
80 deg. DB
67 deg. WB
Low SIde
High Side
133
327
136
342
139
359
142
379
144
402
146
427
147
454
148
485
149
518
150
554
85 deg. DB
72 deg. WB
Low SIde
High Side
138
338
141
354
144
372
147
392
149
416
151
442
152
470
153
502
154
536
155
573
T36S
75 deg. DB
62 deg. WB
Low SIde
High Side
134
311
135
329
136
347
137
369
138
391
139
414
141
441
142
468
144
497
146
528
80 deg. DB
67 deg. WB
Low SIde
High Side
143
319
144
337
145
356
147
378
148
401
149
425
151
452
152
480
154
510
156
542
85 deg. DB
72 deg. WB
Low SIde
High Side
148
330
149
349
150
368
152
391
153
415
154
440
156
468
157
497
159
528
161
561
T42S
75 deg. DB
62 deg. WB
Low SIde
High Side
130
318
132
339
133
362
134
384
135
409
137
432
138
457
139
482
141
508
144
534
80 deg. DB
67 deg. WB
Low SIde
High Side
139
326
141
348
142
371
143
394
144
419
146
443
148
469
149
494
151
521
154
548
85 deg. DB
72 deg. WB
Low SIde
High Side
144
337
146
360
147
384
148
408
149
434
151
459
153
485
154
511
156
539
159
567
T48S
75 deg. DB
62 deg. WB
Low SIde
High Side
137
326
138
339
139
356
140
375
141
398
143
423
144
450
146
482
148
515
150
551
80 deg. DB
67 deg. WB
Low SIde
High Side
147
334
148
348
149
365
150
385
151
408
153
434
154
462
156
494
158
528
160
565
85 deg. DB
72 deg. WB
Low SIde
High Side
152
346
153
360
154
378
155
398
156
422
158
449
159
478
161
511
164
546
166
585
T60S
75 deg. DB
62 deg. WB
Low SIde
High Side
130
339
131
352
132
368
133
387
135
410
136
437
137
467
139
500
141
537
143
577
80 deg. DB
67 deg. WB
Low SIde
High Side
139
348
140
361
141
377
142
397
144
421
145
448
147
479
149
513
151
551
153
592
85 deg. DB
72 deg. WB
Low SIde
High Side
144
360
145
374
146
390
147
411
149
436
150
464
152
496
154
531
156
570
158
613
Model
Return Air
Temperature
Pressure
0
5
10
15
20
25
30
35
40
45
50
55
60
65
T30S
70 Deg.
Low Side
High Side
44
286
49
289
53
293
59
299
65
306
71
314
78
323
86
333
94
344
103
357
113
371
123
386
133
402
145
419
T36S
70 Deg.
Low Side
High Side
43
265
48
271
53
277
59
283
65
290
72
298
79
306
87
314
95
324
103
333
112
343
121
354
130
365
140
376
T42S
70 Deg.
Low Side
High Side
48
286
50
288
52
292
56
297
61
304
66
313
73
323
80
335
89
349
99
364
109
381
121
399
133
420
147
442
T48S
70 Deg.
Low Side
High Side
33
260
40
264
48
270
55
275
63
281
70
288
78
295
85
303
92
311
100
320
107
239
114
339
122
350
129
361
T60S
70 Deg.
Low Side
High Side
32
250
40
265
48
279
56
291
63
303
71
314
78
323
86
332
93
340
99
347
106
352
113
357
119
361
125
364