Goodman GMV950453BX Series Technical document

GMV95 40" 95% Gas Furnace Units
GCV9 40" 90% Gas Furnace Units Models listed
on page 2.
TECHNICALINFORMATION MANUAL
• Refer to Service Manual RS6610004* for installation,
operation,andtroubleshootinginformation.
• All safety information must be followed as provided in
theServiceManual.
• Refer to the appropriate Parts Catalog for part number
information.
Copyright © 2005 - 2008 Goodman Manufacturing Company, L.P.
RT6612012Rev.2
July2008
®This manual is to be used by qualified, professionally trained HVAC
technicians only. Goodman does not assume any responsibility for property
damage or personal injury due to improper service procedures performed by
an unqualified person.

PRODUCT IDENTIFICATION
2
Themodelandmanufacturingnumberareusedforpositiveidentificationofcomponentpartsusedinmanufacturing.
Pleaseusethesenumberswhen requesting service or parts information.
WARNING
WARNING
WARNING
WARNING
HIGHVOLTAGE!
DisconnectALLpowerbeforeservicingorinstallingthis unit.Multiple
power sources may be present. Failure to do so may cause property
damage, personal injury or death.
Installation and repair of this unit should be performed ONLY by individu-
als meeting the requirements of an "entry level technician" as specified
by the the Air-Conditioning, Heating and Refrigeration Institute (AHRI).
Attempting to install or repair this unit without such background may
result in product damage, personal injury or death.
WARNING
WARNING
Goodmanwillnotberesponsibileforanyinjuryorpropertydamagearising
from improper service or service procedures. If you install or perform
service on this unit, you assume responsibility for any personal injury or
property damage which may result. Many jurisdictions require a license to
install or service heating and air conditioning equipment.
Furnace Type
Product Type
G: GoodmanBrand
Supply Type
Nominal Input
Model Family
G M V 95 045 3 B X A
Additional Features
N: NaturalGas
X: LowNOx
Airflow Capability
Cabinet Width
Design Series
A:Initial Release
045: 45,000Btuh
070: 70,000Btuh
090: 90,000Btuh
115: 115,000Btuh
3: 1200
4: 1600
5: 2000
9: 90% AFUE
95: 95%AFUE
C: Counterflow/Horizontal
M: Upflow/Horizontal
B: 171/2"
C: 21" D: 241/2"
V: VariableSpeed,
Two-Stage

3
Themodelandmanufacturingnumberareusedforpositiveidentificationofcomponentpartsusedinmanufacturing.
Pleaseusethesenumberswhen requesting service or parts information.
PRODUCT IDENTIFICATION
WARNING
WARNING
WARNING
WARNING To prevent the risk of property damage, personal injury, or death, do not
store combustible materials or use gasoline or other flammable liquids or
vapors in the vicinity of this appliance.
Do not connect or use any device that is not design certified by Goodman
for use with this unit. Serious property damage, personal injury, reduced
unit performance and/or hazardous conditions may result from the use of
suchnon-approved devices.
WARNING
WARNING The United States Environmental Protection Agency (“EPA”) has issued
various regulations regarding the introduction and disposal of refrigerants
introduced into this unit. Failure to follow these regulations may harm the
environment and can lead to the imposition of substantial fines. These
regulations may vary by jurisdiction. Should questions arise, contact your
local EPA office.
GMV950453BX*
GMV950704CX*
GMV950905DX*
GMV951155DX*
GCV90704CX*
GCV90905DX*
GCV91155DX*

PRODUCT DESIGN
4
3. Conversionkitsforpropanegasandhighaltitude
naturalandpropanegasoperation are available. See
HighAltitudeDeratechartfor details.
4. Installer must supply the following gas line fittings,
dependingonwhichentrance is used:
Left --Two 90° Elbows, one close nipple, straight pipe
Right --Straightpipe to reachgasvalve.
Accessibility Clearances(Minimum)
POSITION* FRONT SIDES REAR TOP FLUE FLOOR
Upflow10010C
Horizontal Alcove 6 0 4 0 C
*= All positioning is determined as installed unit is viewed from the front.
C= If placed on combustible floor, floorMUST be wood only.
POSITION* FRONT SIDES REAR TOP FLUE FLOOR
Downflow 1 0 0 1 0 NC
Horizontal Alcove 6 0 4 0 C
*= All positioning is determined as installed unit is viewed from the front.
C= If placed on combustible floor, floorMUST be wood only.
GMV95 MINIMUM CLEARANCES TO COMBUSTIBLE MATERIALS
(INCHES)
NC= For instalaltion on non-combustible floors only. A combustible
subbase must be used for installations on combustible flooring.
GCV9 MINIMUM CLEARANCES TO COMBUSTIBLE MATERIALS
(INCHES)
NC= For instalaltion on non-combustible floors only. A combustible
subbase must be used for installations on combustible flooring.
AlcoveIllustration
REAR
SIDE
SIDE
A
LCOVE
24"atfront isrequiredforservicing orcleaning.
Note: In all cases accessibility clearance shall take
precedence over clearances from the enclosure where
accessibility clearances are greater. All dimensions are
givenininches.
GeneralOperation
TheGMV95andGCV9 furnaces are equipped with an elec-
tronicignitiondeviceto light theburnersandaninduceddraft
blowerto exhaust combustion products.
An interlock switch prevents furnace operation if the blower
door is not in place. Keep the blower access doors in place
exceptforinspectionand maintenance.
This furnace is also equipped with a self-diagnosing elec-
tronic control module. In the event a furnace component is
not operating properly, the control module LED will flash on
andoffinafactory-programmedsequence, dependingonthe
problem encountered. This light can be viewed through the
observation window in the blower access door. Refer to the
TroubleshootingChartforfurtherexplanationoftheLEDcodes
andAbnormal Operation - IntegratedIgnitionControlsection
intheService Instructions for an explanation ofthe possible
problem.
The rated heating capacity of the furnace should be greater
than or equal to the total heat loss of the area to be heated.
The total heat loss should be calculated by an approved
method or in accordance with “ASHRAE Guide” or “Manual
J-LoadCalculations”publishedbytheAirConditioning Con-
tractorsofAmerica.
*Obtain from: American National Standards Institute 1430
BroadwayNewYork, NY10018
LocationConsiderations
• The furnace should be as centralized as is practical
with respect to the air distribution system.
• Do not install the furnace directly on carpeting, tile, or
combustiblematerialotherthanwoodflooring.
• When suspending the furnace from rafters or joists,
use3/8"threadedrodand2” x2”x1/8”angleasshown
intheInstallationandServiceInstructions.Thelength
oftherod will depend ontheapplicationandclearance
necessary.
• Wheninstalledina residentialgarage,thefurnacemust
be positioned so the burners and ignition source are
located not less than 18 inches (457 mm) above the
floorandprotectedfromphysical damage by vehicles.
Notes:
1. Installermustsupplyoneortwo PVC pipes: one for com-
bustionair(optional) andoneforthe flueoutlet(required).
Vent pipe must be either 2” or 3” in diameter, depending
uponfurnaceinput, number of elbows, lengthof run and
installation (1 or 2 pipes). The optional Combustion Air
Pipeisdependentoninstallation/coderequirementsand
must be 2” or 3” diameter PVC.
2. Linevoltagewiringcanenterthroughtherightorleftside
of the furnace. Low voltage wiring can enter through the
rightor left side of furnace.

5
PRODUCT DESIGN
High Altitude Derate
Whenthisfurnaceisinstalledat high altitude, the appropriate HighAltitudeorificekitmustbeinstalled.Thisisrequireddue
tothe natural reduction in thedensity of both the gasfuel and combustion air as altitude increases. The kitwill provide the
properdesigncertifiedinput rate within the specified altitude range.
Natural Propane Natural Propane Natural Propane
GMV950453BX*
GMV950704CX* No Change LPM-05* #55 Orifice No Change
HANG13
#44
Orifice
HALP11
#56 Orifice HAPS28 HANG14
#45
Orifice
HALP11
#56
Orifice HAPS28
GMV950905DX*
GMV951155DX* No Change LPM-05* #55 Orifice No Change
HANG13
#44
Orifice
HALP11
#56
Orifice HAPS29 HANG14
#45
Orifice
HALP11
#56
Orifice HAPS29
GCV90704CX*
GCV90905DX*
GCV91155DX*
No
Change LPM-05* #55 Orifice No Change
HANG13
#44
Orifice
HALP11
#56
Orifice HAPS29 HANG14
#45
Orifice
HALP11
#56
Orifice HAPS31
9,001 - 11,000 Feet
"STANDARD" and "HIGH ALTITUDE" KITS
Furnace ID Blwr
Pressure
Switch
Gas Orifices
0 - 7,000 Feet
(Standard Altitude) 7,001 - 9,000 Feet
Gas Orifices
ID Blwr
Pressure
Switch
ID Blwr
Pressure
Switch
Gas Orifices
Highaltitudekitsarepurchasedaccordingtotheinstallationaltitudeandusageofeithernaturalorpropanegas.Refertothe
chartaboveforatabularlistingofappropriatealtituderangesandcorrespondingmanufacturer’shighaltitudeNaturalGasand
PropaneGaskits.Foratabularlistingofappropriatealtituderangesandcorrespondingmanufacturer'sHighAltitudePressure

COMPONENT IDENTIFICATION
6
Upflow/Horizontal
1Two-StageGasValve
2 GasLineEntrance(Alternate)
3 PressureSwitch(es)
4 GasManifold
5 CombustionAir Intake Connection
6 HotSurfaceIgniter
7 RolloutLimit
8 Burners
9 FlameSensor
10 FluePipeConnection
11 FluePipe
12 Primary Limit
13 GasLine Entrance
14 FluePipeConnection(Alternate)
15 RubberElbow
16 Two-Speed InducedDraftBlower
17 ElectricalConnection Inlets (Alternate)
18 CoilFrontCoverPressureTap
19 CoilFrontCoverDrainPort
20 DrainLinePenetrations
21 DrainTrap
22 BlowerDoor Interlock Switch
23 Inductor(NotAll Models)
24 Two-StageIntegrated ControlModule
(withfuseanddiagnostic LED)
25 24VoltThermostatConnections
26 Transformer(40 VA)
27 ECMVariableSpeed Circulator Blower
28 Auxiliary Limits
29 JunctionBox
30 ElectricalConnection Inlets
31 CoilFrontCover
32 CombustionAirInletPipe(GCV9only)
Counterflow/Horizontal
BLOWER COMPARTMENT BURNER COMPARTMENT
1
2
3
4
56787910
11
3
12
13
14
15
16 18
19 20
23
25
26
27
28
21
20
1918
31 17
Intell-I
g
nition
*
*
*
*
*
*
*
*
*
BLOWER COMPARTMENT
1
97874
6
12
13
21
20
19
18
31
3
24
23
25
32
526 27 10
28
3
1514
16
1819
20
2
11
17
30
29

7
PRODUCT DIMENSIONS
GMV95___XA
NOTE: Airflow area will be reduced by approximately 18% if duct flanges are not unfolded. This could cause performance
issues and noise issues.
RIGHT SIDE
DRAIN LINE
HOLES
AIR
INTAKE
PIPE
2" PVC
1 5/8
RIGHT SIDE VIEW
2
1 1/2
UNFOLDED FLANGES
1
FOLDED FLANGES
UNFOLDED FLANGES
FOLDED FLANGES
A
IR
DISCHARGE
AIR
DISCHARGE
CabinetSizeABCDE
20-7/16
GMV950453BX*
GMV950704CX*
GMV950905DX*
GMV951155DX*
16
19-1/2
23
17-1/2
21
13-5/8
17-1/2
20-7/8
All dimensions are in inches.
24-1/2
12-1/8
16
19-3/8
12-15/16
15-15/16

PRODUCT DIMENSIONS
8
GCV9_____XA
LOW VOLTAGE
ELECTRICAL HOLE
28 3/4
3/4 20 1/4 2 1/2
AIR INTAKE PIPE
2" PVC
LEFT SIDE
DRAIN LINE
HOLES
DRAIN
TRAP
C
L
28 5/16
11 1/2
9 13/16
18 13/16
UNFOLDED FLANGES
1 3/4
18 5/8
2 5/8
HIGH VOLTAGE
ELECTRICAL HOLE
20 5/32
AIR
DISCHARGE
LEFT SIDE
VIEW
3/4
E
2
UNFOLDED FLANGES
B
(DISCHARGEAIR)
E
CONDENSATE
DRAIN TRAP
w/ 3/4" PVC
DISCHARGE
(RIGHT OR
LEFT SIDE)
40
8 1/4
D
FOLDED FLANGES
(RETURN AIR) 3/4
A
HIGH VOLTAGE
ELECTRICAL HOLE
LOW VOLTAGE
ELECTRICAL HOLE
RIGHT SIDE
DRAIN LINE
HOLES
ALTERNATE
VENT/FLUE
LOCATION
VENT/FLUE PIPE
2" PVC
11 5/8
A
LTERNATE
A
IR INTAKE LOCATION
9 3/4
DRAIN
TRAPC
L
6 1/8
7 3/8
A
IR
DISCHARGE
2 5/8
A
LTERNATE GAS
SUPPLY HOLE
RIGHT SIDE
VIEW
FRONTVIEW
4 1/8
1 3/4
28 5/16
15 7/16
19 7/8
14
STANDARD GAS
SUPPLY HOLE
FOLDED FLANGES
2 11/16
NOTE: Airflow area will be reduced by approximately 18% if duct flanges are not unfolded. This could cause performance
issues and noise issues.
CabinetSizeABCDE
21-1/2 23
GCV90704CX* 21 19-1/2 15-15/16
All dimensions are in inches.
18 19-1/2
GCV90905DX*
GCV91155DX* 24-1/2 23 20-7/16

9
PRODUCT DESIGN
LOW
FIRE HIGH FIRE LOW FIRE HIGH FIRE LOW FIRE HIGH FIRE LOW FIRE HIGH FIRE
GMV950453BX*
GMV950704CX* -0.45 -0.90 -0.50 -0.95 -0.25 -0.25 -0.25 -0.25
GMV950905DX*
GMV951155DX* -0.65 -1.20 -0.70 -1.25 -0.25 -0.25 -0.25 -0.25
GCV90704CX* -0.35 -0.70 -0.20 -0.55 -0.52 -0.52 -0.37 -0.37
GCV90904DX* -0.35 -0.70 -0.20 -0.55 -0.52 -0.52 -0.37 -0.37
GCV91155DX* -0.35 -0.70 -0.20 -0.55 -0.52 -0.52 -0.37 -0.37
(2) Data given is least negative pressure required for pressure switch to remain closed.
Note: The typical sea level negative pressure data represents the minimum pressures expected. Shorter
length of flue pipe or single pipe systems compared to dual pipe systems should show higher(greater
negative) pressures.
PRESSURE SWITCH TRIP POINTS AND USAGE CHART
NEGATIVE
PRESSURE
ID BLOWER
WITHFLUE
NOT FIRING
TYPICAL SEA
LEVEL DATA(1)
NEGATIVE
PRESSURE
ID BLOWER
WITH FLUE
FIRING
TYPICAL SEA
LEVEL DATA(2)
NEGATIVE
PRESSURE
COIL COVER
WITH FLUE
NOT FIRING
TYPICAL SEA
LEVEL DATA(1)
NEGATIVE
PRESSURE
COIL COVER
WITH FLUE
FIRING
TYPICAL SEA
LEVEL DATA(2)
MODEL
(1) Data given is least negative pressure required for pressure switch to close.
LOW FIRE HIGH FIRE LOW FIRE HIGH FIRE LOW FIRE HIGH FIRE LOW FIRE HIGH FIRE
GMV950453BX*
GMV950704CX* -0.10 -0.10 20197308 -0.30 -0.75 11177113 -0.10 -0.10 -0.22 -0.55 HAPS28
11177115
GMV950905DX*
GMV951155DX* -0.10 -0.10 20197308 -0.50 -1.10 11177114 -0.10 -0.10 -0.38 -0.82 HAPS29
11177116
GCV90704CX* -0.37 -0.37 20197313 -0.20 -0.55 11177118 -0.37 -0.37 -0.15 -0.30 HAPS31
GCV90905DX* -0.37 -0.37 20197313 -0.20 -0.55 11177118 -0.37 -0.37 -0.15 -0.30 HAPS31
GCV91155DX* -0.37 -0.37 20197313 -0.20 -0.55 11177118 -0.37 -0.37 -0.15 -0.30 HAPS31
7,001 ft. to 11,000 ft.
PRESSURE SWITCH TRIP POINTS AND USAGE CHART
Note: All installations above 7,000 ft. require a pressure switch change. For installations in Canada the GMV95 & GCV9 furnaces are certified only to 4500 ft.
TRIP POINT
COIL COVER
PRESSURE SWITCH
TRIP POINT
COILCOVER
PRESSURE SWITCH
TRIP POINT
ID BLOWER
PRESSURE SWITCH
COIL COVER
PRESSURE
SWITCH
PART #
Note: Replacement pressure switch number is listed belowhigh altitude kit number.
Note: All negative pressure readings are in inches of water column (" w.c.).
0 to 7,000 ft.
MODEL
TRIP POINT
ID BLOWER
PRESSURE SWITCH HIGH
ALTITUDE
KIT
ID BLOWER
PRESSURE
SWITCH
PART #

PRODUCT DESIGN
10
Part Number 20162903 20162904 20162905 20162907 20162908
Open Setting (°F) 160 150 145 155 170
GMV950453BX* ---- ---- 1---- ----
GMV950704CX* ---- ---- ---- 1----
GMV950905DX* ---- ---- 1---- ----
GMV951155DX* ---- 1---- ---- ----
GCV90704CX* 1 ---- ---- ---- ----
GCV90905DX* ---- ---- ---- ---- 1
GCV91155DX* ---- ---- 1 ---- ----
PRIMARY LIMIT
Part Number 10123534 10123535 10123537 10123536 10123533
Open Setting (°F) 220 150 190 180 200
GMV950453BX* --- 2 --- --- ---
GMV950704CX* --- --- 2 --- ---
GMV950905DX* --- --- --- 2 ---
GMV951155DX* --- --- --- --- 2
GCV90704CXA 2------------
GCV90905DXA --- --- --- 2 ---
GCV90905DXA --- --- --- 2 ---
AUXILIARY LIMIT SWITCHES
Part Number 10123512 10123517 10123518 10123533 10123534 10123537
Open Setting (°F) 325 210 170 200 220 190
GMV950453BX* --- --- 1 --- --- ---
GMV950704CX* --- --- --- 2 --- ---
GMV950905DX* --- --- --- --- --- 2
GMV951155DX* --- --- --- 2 --- ---
GCV90704CX* ---- --- --- --- 2 ---
GCV90905DX* --- 2 --- --- --- ---
GCV91155DX* ---- 2 ---- ---- ---- ---
ROLLOUT LIMIT SWITCHES