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Return Air Temp
Model
(DB/WB)
H42A/L
H48A/L
H60A/L
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".
Manual 2100-585A
Page
16 of 19
COOLING PRESSURE TABLE
Pressure
75° DB
Low Side
62° WB
High Side
80° DB
Low Side
67° WB
High Side
85° DB
Low Side
72° WB
High Side
75° DB
Low Side
62° WB
High Side
80° DB
Low Side
67° WB
High Side
85° DB
Low Side
72° WB
High Side
75° DB
Low Side
62° WB
High Side
80° DB
Low Side
67° WB
High Side
85° DB
Low Side
72° WB
High Side
TABLE 2
Air Temperature Entering Outdoor Coil °F
75
80
85
90
95
123
124
126
128
130
320
342
367
391
416
132
133
135
137
139
328
351
376
401
427
137
138
140
142
144
339
363
389
415
442
117
119
121
123
125
355
378
403
427
454
125
127
129
132
134
364
388
413
438
466
129
131
134
137
139
377
402
427
453
482
122
124
126
128
130
346
371
396
421
447
131
133
135
137
139
355
380
406
432
458
136
138
140
142
144
367
393
420
447
474
100
105
110
115
120
132
134
136
137
139
443
469
496
526
554
141
143
145
147
149
454
481
509
539
568
146
148
150
152
154
470
498
527
558
588
127
129
131
133
135
482
510
539
570
603
136
138
140
142
144
494
523
553
585
618
141
143
145
147
149
511
541
572
605
640
131
133
135
137
138
473
499
526
553
580
140
142
144
146
148
485
512
539
567
595
145
147
149
151
153
502
530
558
587
616
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