Goodman GMV95 Technical Information Manual page 15
40" 95% gas furnace units
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- Installation instructions manual (40 pages) ,
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- Installation instructions manual (40 pages)
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BLOWER PERFORMANCE SPECIFICATIONS
GMV95
Circulator Blower Speed Adjustment Switches
8 7
6 5
4 3 2 1
*
Normal
O
O
F
F
F
F
8 7
6 5
4 3 2 1
+ (Plus)
Adjust
O
O
F
N
F
8 7
6 5
4 3 2 1
- (Minus)
Adjust
O
O
N
F
F
Adjust Taps
*
(
indicates factory setting)
GMV95
Ramping Profile
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.
8 7
6 5
4 3 2 1
Cooling
Speed
Tap A
O
O
F
F
F
F
8 7
6 5
4 3 2 1
Cooling
Speed
Tap B
O
O
F
N
F
8 7
6 5
4 3 2 1
Cooling
Speed
Tap C
O
O
N
F
F
8 7
6 5
4 3 2 1
*
Cooling
Speed
Tap D
O
O
N
N
Cooling Speed Taps
*
(
indicates factory setting)
8 7
6 5
4 3 2 1
*
Ramping
Profile
Tap A
O
O
F
F
F
F
8 7
6 5
4 3 2 1
Ramping
Profile
Tap B
O
O
F
N
F
8 7
6 5
4 3 2 1
Ramping
Profile
Tap C
O
O
N
F
F
8 7
6 5
4 3 2 1
Ramping
Profile
Tap D
O
O
N
N
Ramping Profiles
*
(
indicates factory setting)
Note: There is a green LED adjacent to the
8 7
6 5
4 3 2 1
Heating
integrated control module fuse which is
Speed
Tap A
O
O
used to verify airflow volume. The green
F
F
F
F
CFM LED blinks once for each 100 CFM of
8 7
6 5
4 3 2 1
*
airflow.
Heating
Speed
Example: 10 blinks = 1,000 CFM
Tap B
O
O
F
N
F
8 7
6 5
4 3 2 1
Note: Continuous fan speed will be 56% of
Heating
Speed
high stage cooling speed.
Tap C
O
O
Example: 1,000 CFM of cooling speed will
N
F
F
be reduced to 560 CFM when fan selector
8 7
6 5
4 3 2 1
Heating
switch is set to on, and no call for cooling.
Speed
Tap D
O
O
N
N
Heating Speed Taps
*
(
indicates factory setting)
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.
15
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