15
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
Ramping Profile
Note:
The multi-speed circulator blower
also offers several custom ON/OFF
ramping profiles. These profiles may be
used to enhance cooling performance
and increase comfort level. The ramping
profiles are selected using DIP switches
5 and 6.
Verify profile selection by counting the
green CFM LED blinks and timing each
step of the ramping profile.
O
F
F
O
F
F
8 7
4 3 2 1
O
F
F
O
N
4 3 2 1
4 3 2 1
4 3 2 1
Ramping
Profile
Tap A
Ramping
Profile
Tap B
Ramping
Profile
Tap C
Ramping
Profile
Tap D
*
Ramping Profiles
(
*
indicates factory setting)
8 7
8 7
8 7
6 5
6 5
6 5
6 5
O
N
O
F
F
O
N
O
N
Note:
There is a green LED adjacent to the
integrated control module fuse which is
used to verify airflow volume. The green
CFM LED blinks once for each 100 CFM of
airflow.
Example: 10 blinks = 1,000 CFM
Note:
Continuous fan speed will be
56%
of
high stage cooling speed.
Example: 1,000 CFM of cooling speed will
be reduced to 560 CFM when fan selector
switch is set to on, and no call for cooling.
*
O
F
F
O
F
F
4 3 2 1
O
F
F
O
N
4 3 2 1
O
N
O
F
F
4 3 2 1
Normal
+ (Plus)
Adjust
- (Minus)
Adjust
Adjust Taps
(
*
indicates factory setting)
8 7
8 7
8 7
6 5
6 5
6 5
O
F
F
O
F
F
8 7
4 3 2 1
O
F
F
O
N
4 3 2 1
O
N
O
F
F
4 3 2 1
O
N
O
N
4 3 2 1
Cooling
Speed
Tap A
Cooling
Speed
Tap B
Cooling
Speed
Tap C
Cooling
Speed
Tap D
*
Cooling Speed Taps
(
*
indicates factory setting)
8 7
8 7
8 7
6 5
6 5
6 5
6 5
O
F
F
O
F
F
8 7
4 3 2 1
O
F
F
O
N
8 7
4 3 2 1
O
N
O
F
F
8 7
4 3 2 1
O
N
O
N
8 7
4 3 2 1
Heating
Speed
Tap A
Heating
Speed
Tap B
Heating
Speed
Tap C
Heating
Speed
Tap D
Heating Speed Taps
(
*
indicates factory setting)
*
6 5
6 5
6 5
6 5
GMV95
Circulator Blower Speed Adjustment Switches
