12
BLOWER PERFORMANCE SPECIFICATIONS
1. Units are shipped without filter(s). CFM in chart is without filter(s).
2. All furnaces shipped with heating speed set at "B" and cooling speed set at "D". Installer should adjust blower speed as
needed. The first task is to determine the proper aiflow for the cooling system.
3. For most cooling applications, about 400 CFM per ton is desirable.
4. The chart is for information only. For satisfactory operation, external static pressure not to exceed value shown on rating
plate.
5. Do not operate above 0.5" w.c. ESP in heating mode. Operating between 0.5" w.c. and 0.8" w.c. is tabulated for cooling
purposes only.
6. * Motor CFM minimum.
GMV95 Heating Speed Charts
Heating
Speed
Tap
Adjust
Tap
Low Stage
CFM
at .1" - .5" w.c.
ESP
High Stage
CFM
at .1" - .5" w.c.
ESP
Rise
(°F)
Heating
Speed
Tap
Adjust
Tap
Low Stage
CFM
at .1" - .5" w.c.
ESP
High Stage
CFM
at .1" - .5" w.c.
ESP
Rise
(°F)
Minus(-)
495
713
57
Minus(-)
756
1089
56
Normal
550
792
51
Normal
840
1210
50
Plus (+)
605
871
46
Plus (+)
924
1331
46
Minus(-)
540
778
52
Minus(-)
828
1192
51
Normal
600
864
47
Normal
920
1325
46
Plus (+)
660
950
43
Plus (+)
1012
1457
42
Minus(-)
585
842
48
Minus(-)
900
1296
47
Normal
650
936
43
Normal
1000
1440
42
Plus (+)
715
1030
39
Plus (+)
1100
1584
38
Minus(-)
630
907
45
Minus(-)
972
1400
43
Normal
700
1008
40
Normal
1080
1555
39
Plus (+)
770
1109
36
Plus (+)
1188
1711
35
Heating
Speed
Tap
Adjust
Tap
Low Stage
CFM
at .1" - .5" w.c.
ESP
High Stage
CFM
at .1" - .5" w.c.
ESP
Rise
(°F)
Heating
Speed
Tap
Adjust
Tap
Low Stage
CFM
at .1" - .5" w.c.
ESP
High Stage
CFM
at .1" - .5" w.c.
ESP
Rise
(°F)
Minus(-)
1013
1458
56
Minus(-)
1107
1594
63
Normal
1125
1620
50
Normal
1230
1771
57
Plus (+)
1238
1782
45
Plus (+)
1353
1948
52
Minus(-)
1076
1549
52
Minus(-)
1139
1639
62
Normal
1195
1721
47
Normal
1265
1822
56
Plus (+)
1315
1893
43
Plus (+)
1392
2004
50
Minus(-)
1139
1639
49
Minus(-)
1170
1685
60
Normal
1265
1822
44
Normal
1300
1872
54
Plus (+)
1392
2004
40
Plus (+)
1430
2059
49
Minus(-)
1202
1730
47
Minus(-)
1202
1730
58
Normal
1335
1922
42
Normal
1335
1922
53
Plus (+)
1469
2115
38
Plus (+)
1469
2115
48
C
D
GMV950453BX* (Rise Range: 30 - 60°F)
A
B
D
GMV950704CX* (Rise Range: 30 - 60°F)
A
B
C
GMV950905DX* (Rise Range: 30 - 60°F)
GMV951155DX* (Rise Range: 30 - 60°F)
A
A
D
D
B
B
C
C