14
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 Continuous Fan Speed Chart
Cooling
Speed
Tap
Adjust
Tap
CFM at
.1" - .8"
w.c. ESP
Cooling
Speed
Tap
Adjust
Tap
CFM at
.1" - .8"
w.c. ESP
Minus(-) 380* Minus(-) 380*
Normal 380* Normal 380*
Plus (+) 380* Plus (+) 380*
Minus(-) 403 Minus(-) 403
Normal 448 Normal 448
Plus (+) 493 Plus (+) 493
Minus(-) 504 Minus(-) 554
Normal 560 Normal 616
Plus (+) 616 Plus (+) 678
Minus(-) 505 Minus(-) 720
Normal 672 Normal 800
Plus (+) 739 Plus (+) 880
C
D
GMV950453BX*
A
B
D
GMV950704CX*
A
B
C
Cooling
Speed
Tap
Adjust
Tap
CFM at
.1" - .8"
w.c. ESP
Cooling
Speed
Tap
Adjust
Tap
CFM at
.1" - .8"
w.c. ESP
Minus(-) 513* Minus(-) 514*
Normal 513* Normal 514*
Plus (+) 513* Plus (+) 514*
Minus(-) 554 Minus(-) 554
Normal 616 Normal 616
Plus (+) 678 Plus (+) 678
Minus(-) 706 Minus(-) 706
Normal 784 Normal 784
Plus (+) 862 Plus (+) 862
Minus(-) 907 Minus(-) 907
Normal 1008 Normal 1008
Plus (+) 1109 Plus (+) 1109
GMV951155DX*GMV950905DX*
BB
AA
DD
CC