BLOWER PERFORMANCE SPECIFICATIONS
20
Heating
Speed
Tap
Adjust
Tap
Low-Stage
CFM (70%) *
High-Stage
CFM *
Rise
(°F)
Heating
Speed
Tap
Adjust
Tap
Low-Stage
CFM (70%) *
High-Stage
CFM *
Rise
(°F)
Minus(-)
792
1,098
48
Minus(-)
999
1,440
49
Normal
880
1,220
44
Normal
1,110
1,600
44
Plus (+)
968
1,342
40
Plus (+)
1,221
1,760
40
Minus(-)
873
1,206
44
Minus(-)
1,080
1,539
46
Normal
970
1,340
40
Normal
1,200
1,710
41
Plus (+)
1,067
1,474
36
Plus (+)
1,320
1,881
38
Minus(-)
936
1,314
40
Minus(-)
1,143
1,620
44
Normal
1,040
1,460
36
Normal
1,270
1,800
39
Plus (+)
1,144
1,606
33
Plus (+)
1,397
1,980
36
Minus(-)
1,008
1,431
37
Minus(-)
1,197
1,719
41
Normal
1,120
1,590
33
Normal
1,330
1,910
37
Plus (+)
1,232
1,749
30
Plus (+)
1,463
2,101
34
Heating
Speed
Tap
Adjust
Tap
Low-Stage
CFM (70%) *
High-Stage
CFM *
Rise
(°F)
Minus(-)
1,098
1,557
56
Normal
1,220
1,730
51
Plus (+)
1,342
1,903
46
Minus(-)
1,125
1,593
55
Normal
1,250
1,770
49
Plus (+)
1,375
1,947
45
Minus(-)
1,170
1,656
53
Normal
1,300
1,840
48
Plus (+)
1,430
2,024
43
Minus(-)
1,179
1,683
52
Normal
1,310
1,870
47
Plus (+)
1,441
2,057
43
Notes
All furnaces ship as high speed for cooling. Ins taller must adjust blower speed as needed.
For most jobs, about 400 CFM per ton when c ooling is desirable.
Do not operat e above .5” w.c. ESP in heating mode. O perating CFM between .5” and .8” w.c . is tabulated for cooling purposes only.
A
B
C
D
C
GCVM960604CX / ACVM960604CX
Rise Range: 20 - 50°F)
B
GCVM960805DX / ACVM960805DX
Rise Range: 20 - 50°F)
B
A
D
C
D
A
GCVM961005DX
Rise Range: 25 - 55°F)
GCVM96 / ACVM96 Heating Speed Charts
