Thermo Pride GMA1-60D48N Installation And Service Manual page 25

Gas-fired furnace
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ALTERATIONS REQ'D FOR A/C @ DESIGN EXTERNAL STATIC PRESSURE
COOLING UNIT
24,000
30,000
36,000
42,000
48,000
Speed Tap \
Static
Pressure
0.1
Low
735
ML
951
MH
1304
High
1551
Speed Tap \
Static
Pressure
0.1
Low
75
ML
58
MH
42
35
High
Furnace Motor Current Draw (Amps) vs. External Static pressure (in.
Speed Tap \
Static
0.1
Pressure
Low
3.01
ML
4.06
MH
5.43
High
6.63
Speed Tap \
Static
Pressure
0.1
Low
296
ML
411
MH
582
High
734
HTG
Speed
MED LOW
MED LOW
MED LOW
MED LOW
MED LOW
Furnace Airflow (CFM) vs. External Static pressure (in. WC.)
0.2
0.3
721
707
939
924
1260
1254
1513
1466
Temperature Rise vs. External Static Pressure (in. WC.)
0.2
0.3
77
78
59
60
44
44
36
37
0.2
0.3
2.95
2.90
3.84
3.75
5.29
5.16
6.49
6.30
Furnace Motor Watts vs. External Static pressure (in. WC.)
0.2
0.3
294
292
397
390
572
560
724
705
=
Recommended operation range
GMA1-75
Recommended CLG
Speed
LOW
MEDIUM LOW
MEDIUM HIGH
MEDIUM HIGH
HIGH
0.4
0.5
683
621
897
880
1207
1178
1430
1369
0.4
0.5
81
89
61
63
46
47
38
40
WC.)
0.4
0.5
2.82
2.70
3.62
3.48
5.01
4.74
6.17
5.96
0.4
0.5
290
279
378
370
542
529
694
671
23
0.6
0.7
586
536
845
766
1221
1057
1314
1244
0.6
0.7
94
103
65
72
49
52
42
44
0.6
0.7
2.62
2.53
3.34
3.13
4.58
4.31
5.76
5.54
0.6
0.7
276
268
361
342
506
482
658
632

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