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RETURN
MODEL
AIR
PRESSURE
TEMP.
Low Side
Q24H2
70
High Side
Low Side
Q30H2
70
High Side
Low Side
Q36H2
70
High Side
Low Side
Q42H2
70
High Side
Low Side
Q48H2
70
High Side
Low Side
Q60H2
70
High Side
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 instructions.
75°F outdoor temperature condenser fan motor is running on low speed.
Manual 2100-601B
Page
42 of 42
TABLE 10
HEATING PRESSURE
(ALL TEMPERATURES IN DEGREES F)
AIR TEMPERATURE ENTERING OUTDOOR COIL
0
5
10
15
35
42
49
57
284
290
297
304
44
47
52
56
295
299
305
312
28
38
48
57
271
278
286
294
30
38
46
54
272
283
294
305
27
36
46
54
272
281
291
300
7
19
31
42
252
266
280
293
20
25
30
35
64
72
79
86
313
322
331
342
62
68
75
82
320
330
341
353
65
72
79
85
302
310
319
327
61
68
76
83
317
328
339
350
63
71
78
85
310
320
330
339
52
61
69
76
306
318
330
341
40
45
50
55
94
101
109
117
353
365
378
392
90
99
108
118
367
382
398
415
91
96
100
104
336
346
355
365
90
96
103
109
362
373
385
396
91
97
103
108
349
359
369
380
83
89
94
98
352
362
371
380
60
124
406
129
434
107
374
115
408
113
390
101
389
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