Goodman GMV8 Technical document

CUS
®
RT6622008
December2006
TECHNICALINFORMATION MANUAL
GMV8
39" 80% Gas Furnace
Upflow/Horizontal
•Referto RS6610004ServiceManualforinstallation,operation,andtrouble-
shootinginformation.
•AllsafetyinformationmustbefollowedasprovidedintheServiceManual.
•Referto the appropriate PartsCatalogfor part number information.
Models listed
on page 3.
This manual is to be used by qualified, professionally trained
HVAC technicians only. Goodman does not assume any responsi-
bility for property damage or personal injury due to improper
service procedures or services performed by an unqualified
person.
Copyright © 2006 Goodman Manufacturing Company, L.P.
®

PRODUCT IDENTIFICATION
2
Major
Furnace Type
V: 2 Stage/Variable Speed
Product Type
G:Goodman
Supply Type
Nominal Input
AFUE
G M V 8 090 5 C X A A
Additional Features
Airflow Capability
Cabinet Width
The model and manufacturing number are used for positive identification of component parts used in manufacturing.
Pleaseuse these numbers when requesting service orpartsinformation.
M:Upflow/Horizontal
070: 70,000Btuh
090: 90,000Btuh
115: 115,000Btuh
Revision
A: Initial
Release
Minor
Revision
A: Initial
Release
B: 171/2"
C: 21"
4: 1600
5: 2000
WARNING
WARNING
WARNING
WARNING
HIGHVOLTAGE!
DisconnectALL powerbefore servicingor installingthis 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 individuals
meetingtherequirementsofan"entryleveltechnician"asspecifiedbytheAir
Conditioning and Refrigeration Institute (ARI). 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.
N: NaturalGas
X: Low NOx
8: 80%

PRODUCT IDENTIFICATION
3
GMV80704BX**
GMV80905CX**
GMV81155CX**
The model and manufacturing number are used for positive identification of component parts used in manufacturing.
Pleaseuse these numbers when requesting service orpartsinformation.
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-approveddevices.
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.
AllmodelsarelowNOxmodels.

4
PRODUCT DESIGN
Notes:
1.CategoryIVentingisventingatanon-positivepressure.
A furnace vented as Category I is considered a fan-as-
sisted appliance and the vent system does not have to
be “gas tight.”
NOTE: Gas furnaces with induced draft blowers draw
productsof combustion throughaheat exchanger allowing,
in some instances, common venting with natural draft
appliances(i.e. water heaters).
Allinstallations must beventedinaccordance with National
Fuel Gas Code NFPA 54/ANSI Z223.1 - latest edition. In
Canada, the furnaces must be vented in accordance with
the National Standard of Canada, CAN/CSA B149.1 and
CAN/CSA B149.2 - latest editions and amendments.
NOTE: Thevertical height of the Category Iventingsystem
must be at least as great as the horizontal length of the
ventingsystem.
WARNING
TO PREVENT POSSIBLE PERSONAL INJURY OR DEATH DUE TO ASPHYXIATION,
COMMON VENTING WITH OTHER MANUFACTURER'S INDUCED DRAFT APPLIANCS
IS NOT ALLOWED.
2. Linevoltage wiringcan enterthroughtherightor leftside
ofthe furnace. Low voltagewiringcan enter through the
rightorleftsideoffurnace.
3. Conversionkits forhigh altitude natural or propane gas
operation are available. See High Altitude Derate chart
fordetails.
4. Installer must supply the following gas line fittings, de-
pendingonwhichentranceisused:
Left -- Two 90º Elbows, one close nipple, straight pipe.
Right --Straight pipe to reach gas valve.
GeneralOperation
GMV8furnaces are equippedwithan electronic ignition de-
viceused to lighttheburners and aninduceddraft blower to
exhaustcombustionproducts.
Aninterlock switch prevents furnace operation iftheblower
door is not in place. Keep the blower access door in place
exceptfor inspection and maintenance. (See illustration on
page6.)
This furnace is also equipped with a self-diagnosing elec-
tronic control module. In the event a furnace component is
notoperating properly,the controlmoduleLED will flash on
and off in a factory-programmed sequence, depending on
theproblem encountered. This light can be viewed through
theobservation window in the blower accessdoor.Refer to
theTroubleshootingChart forfurther explanationof theLED
codesand AbnormalOperation- Integrated IgnitionControl
section in the Service Instructions for an explanation of the
possibleproblem.
Therated heating capacity ofthefurnaceshould be greater
thanorequaltothetotalheatlossoftheareatobeheated.
The total heat loss should be calculated by an approved
methodor in accordance with “ASHRAEGuide”or “Manual
J-LoadCalculations” publishedby theAirConditioningCon-
tractors of America.
*Obtain from: American National Standards Institute 1430
BroadwayNew York, NY 10018
LocationConsiderations
• The furnace should be as centralized as is practical
with respect to the air distribution system.
• Donot install the furnacedirectlyon carpeting, tile, or
combustiblematerial other than woodflooring.
• When suspending the furnace from rafters or joists,
use 3/8" threaded rod and 2” x 2” x 3/8” angle as
showninthe Installationand ServiceInstructions. The
length of the rod will depend on the application and
clearancenecessary.
• When installed in a residential garage, the furnace
mustbe positionedso theburnersand ignitionsource
are located not less than 18 inches (457 mm) above
the floor and protected from physical damage by ve-
hicles.
WARNING
TO PREVENT POSSIBLE PERSONAL INJURY OR DEATH DUE TO ASPHYXIATION,
THIS FURNACE MUST BE CATEGORY IVENTED. DO NOT VENT USING
CATEGORY III VENTING.

5
PRODUCT DESIGN
Accessibility Clearances (Minimum)
Unobstructed front clearanace of 24" for servicing is rec-
ommended.
Topclearance for horizontalconfirguration- 1"
SW B
1036 11
Approved for line contact in the horizontal position.
* 24" clearnace for serviceability recommended.
** Single Wall Vent (SW) to be used only as a conncetor.
Refer to the venting tables outlined in the Installation Manual for
Vent
Sides TopRear Front*
MINIMUM CLEARANCE TO COMBUSTIBLE MATERIALS - INCHES
24"at front is required for servicing or cleaning.
Note: Inallcasesaccessibilityclearanceshalltakeprece-
denceoverclearancesfromtheenclosurewhereaccessibil-
ityclearancesaregreater. Alldimensionsaregivenininches.
High Altitude Derate
Whenthisfurnaceis installed at high altitude, the appropri-
ate High Altitude orifice kit must be installed. This is re-
quireddue to the naturalreductionin the density of boththe
gas fuel and combustion air as altitude increases. The kit
will provide the proper design certified input rate within the
specifiedaltitude range.
2000 3000 4000 4500 5000 6000 7000 8000
US BURNER
ORIFICE 44/55 44/55 45/56 45/56 46/57 47/58 47/58
CANADA BURNER
ORIFICE 44/55 47/57
HA-02 HIGH ALTITUDE CONVERSION KIT REQUIRED
Tabled data is based upon the furnace input being reduced for altitudes above sea level. U.S. 4% per 1,000 feet.
Canada 10% derate for 2,000-4,000 feet.
ELEVATION ABOVE SEA-LEVEL (FEET)
INPUT PER BURNER - 22,500 BTUH NATURAL GAS / 20,000 BTUH L.P.
High altitude kits are purchased according to the installa-
tionaltitudeandusageofeithernaturalorpropanegas.Refer
tothe chart abovefora tabular listing ofappropriatealtitude
rangesandcorrespondingmanufacturer’shighaltitudeNatu-
ralGas and PropaneGaskits. For a tabularlistingof appro-
priatealtituderangesandcorrespondingmanufacturer'sHigh
Altitude Pressure Switch kits, refer to either the Pressure
Switch Trip Points & Usage Chart in this manual or the Ac-
cessoryChartsinService Instructions.

COMPONENT IDENTIFICATION
6
Upflow/Horizontal
1 GasValve
2 GasLine Entrance (Alternate)
3 PressureSwitch(es)
4 GasManifold
5 RolloutLimit
7 Primary Limit
8 GasLine Entrance
9 FluePipe Connection (Alternate)
10 InducedDraftBlower
11 BlowerDoor Interlock Switch
12 IntegratedControlModule
(withfuse and diagnostic LED)
13 Transformer(40VA)
14 CirculatorBlower
15 JunctionBox
Pressure Switch
Flue Pipe Connection
Circulator
Blower
Gas Line
Entrance
Gas Line Entrance
(Alternate)
Inshot Burner
Induced Draft Blower
Gas Manifold
Rollout Limit
Primary Limit
Integrated Control Module
Junction
Box Transformer
Blower Door Interlock Switch

PRODUCT DIMENSIONS
7
GMV8*****XA
CABINET SIZE A B
GMV80704BX** 17½ 16
GMV80905CX** 21 19.5
GMV81155CX** 21 19.5
All dimensions are in inches

8
PRODUCT DESIGN
(1) Data given is least negative pressure required for pressure switch to close.
Note: All negative pressure readings are in inches of water column (" w.c.).
LOW
FIRE HIGH FIRE
GMV80704BX** -0.30 -0.45 B1370208
GMV80905CX** -0.30 -0.50 B1370209
GMV81155CX** -0.30 -0.55 B1370210
PRESSURE SWITCH TRIP POINTS
AND USAGE CHART
ID BLOWER
PRESSURE
SWITCH
PART #
Negative
Pressure ID
Blower With
Flue not Firing
typical Sea
Level Data (1)
0 to 8,000 ft.
MODEL
Part Number B1370198 B1370207
Open Setting (°F) 150 130
GMV80704BX** 1
GMV80905CX** 1
GMV81155CX* 1
T.O.D. PRIMARY LIMIT
Part Number B1370145
Open Setting (°F) 300
GMV80704BX** 1
GMV80905CX** 1
GMV81155CX** 1
ROLLOUT LIMIT SWITCH
Part Number 20269903
Open Setting (°F) 150
GMV80704BX** 2
GMV80905CX** 2
GMV81155CX** 2
AUXILIARY LIMIT SWITCHES

9
PRODUCT DESIGN
Coil Matches:
A large array of Amana®brand coils are available for use with the new GMV8 furnaces, in either upflow or horizontal
applications.These coils areavailablein both casedanduncased models, withorwithout a TXVexpansiondevice. These
80% furnaces match up with the existing Amana®brand coils as shown in the chart below.
Coil Matches (for Amana®brand units using R22 and R-410A):
CABINET
WIDTH FURNACE MODELS AIRFLOW (tons)
CAUF
UNCASED
"A" COILS
CAPF
CASED
"A" COILS
CHPF
HORIZ. CASED
"A" COIL
CAUF018B2* CAPF018B2* CHPF036B2*
CAUF025B2* CAPF025B2* CHPF042B2*
CAUF030B2* CAPF030B2* CHPF048B2*
CAUF036B2* CAPF039B2* CHPF2430B6*
CAUF037B2* CAPF036B2* CHPF3636B6*
GMV80704BX** 1 1/2 - 3 CAUF042B2* CAPF037B2*
CAUF048B2* CAPF042B2*
CAUF1824B6* CAPF1824B6*
CAUF3030B6* CAPF3030B6*
CAUF3131B6* CAPF3131B6*
CAUF3636B6* CAPF3636B6*
CAUF042C2* CAPF036C2* CHPF048D2*
CAUF048C2* CAPF042C2* CHPF060D2*
CAUF049C2* CAPF1824C6* CHPF3642C*
CAUF060C2* CAPF3030C6*
21 CAUF061C2* CAPF3131C6*
CAUF1324C6* CAPF3636C6*
CAUF3030C6* CAPF3642C6*
CAUF3636C6*
CAUF3642C6*
CAUF4860C6*
17 1/2
2 1/2 - 4
GMV80905CX**
GMV81155CX**

10
PRODUCT DESIGN
Thermostats:
Thefollowing Amana®brandThermostats are suggested for use with the GMV8 FurnaceModels:
Filters:
Filters are required with this furnace and must be provided by the installer. The filters used must comply with UL900 or
CAN/ULCS111standards. Installing this furnace without filters will void theunitwarranty.
This furnace has provisions for the installation of return air filters at the side and/or bottom return. The furnace will
accommodatethefollowingfiltersizes depending on cabinet size:
RefertoMinimumFilterAreatablestodeterminefilterarearequirement.NOTE:Filterscanalsobeinstalledelsewherein
the duct system such as a central return.
Upflow Filters
Cabinet
Width
(in.)
Nominal
Filter Size
(in.)
Approx.
Flow Area
(
in2
)
Cabinet
Width
(in.)
Nominal
Filter Size
(in.)
Approx.
Flow Area
(
in2
)
All 16 x 25 x 1 400 17-1/2 14 x 25 x 1 288
21 16 x 25 x 1 480
Side Return(s) Bottom Return
FURNACE INPUT FILTER SIZE TYPE
45M 160 in2permanent
70M 241 in2permanent
90M 320 in2permanent
115M 400 in2permanent
140M 370 in2permanent
45M 320 in2disposable
70M 483 in2disposable
90M 640 in2disposable
115M 800 in2disposable
140M 738 in2disposable
PERMANENT NOMINAL 600 F.M. FACE VELOCITY
DISPOSABLE NOMINAL 300 F.M. FACE VELOCIT
Y
MINIMUM FILTER SIZES
Thermostat Programmable Cool Heat Hard Wired Battery Powered
1213411 No 2 2 Yes Yes
1213407 Yes 1 2 Yes Yes
1213406* Yes 2 3 Yes No
Two-Stage Thermostat Description
* For use in dual-fuel applications with a heat pump in a fossil fuel application. It is not for use with
the GMV8 as a sole heating source.

11
PRODUCT DESIGN
Dual$aver Configuration and Operation:
Dual$aver
This furnace is capable of the following heating modes:
Single Stage (Factory Setting)
Modified Two-Stage
Fixed 5-Min Low Stage
Auto Time (1-12 Min) Low Stage
To change from the factory single-stage operation, adjust the
dipswitches on the ignition control as follows:
Off On
Mode
5 Min Fixed
Auto
Mode Dipswitch
2
nd
Stage Delay Dipswitch
Note: This furnace is designed to be used with a single-stage room
thermostat.
Start Start
Call for Heat Call for Heat
Safety Circuit Check Safety Circuit Check
Start Furnace
in Low Stage
Start Furnace
in Low Stage
Low-Heat Blower Low-Heat Blower
Delay Time (5 Min) Delay Time (1-12 Min)
Gas Valve Switch Gas Valve Switch
to 2nd Stage to 2nd Stage
Blower Switch to Blower Switch to
Hi Heat Operation Hi Heat Operation
T-Stat Satisfied T-Stat Satisfied
•
•
»
»

FURNACE SPECIFICATIONS
12
(1) Minimum Circuit Ampacity calculated as: (1.25 x Circulator Blower Amps) + I.D. Blower Amps.
(2) Maximum Overcurrent Protection Device: May use Time Delay Fuse or HACR type Circuit Breaker of the same size as noted.
NOTES:
1. These furnaces are manufactured for natural gas operation. Optional kits are available for conversion to propane operation.
2. For elevations above 2000 feet the rating should be reduced by 4% for each 1000 feet above sea level. The furnace must not be derated, orifice changes should
only be made if necessary for altitude.
3. The total heat loss from the structure as expressed in TOTAL BTU/HR must be calculated by the manufacturers method or in accordance with the "A.S.H.R.A.E.
GUIDE" or "MANUAL J-LOAD CALCULATIONS" published by the AIR CONDITIONING CONTRACTORS OF AMERICA. The total heat loss calculated should be
equal to or less than the heating capacity. Output based on D.O.E. test procedures, steady state efficiency times output.
4. Wire size should be determined in accordance with National Electrical Codes. Extensive wire runs will require larger wire sizes.
Unit specifications are subject to change without notice. ALWAYS refer to the units serial plate for the most up-to-date general and electrical information.
MODEL GMV80704BX** GMV80905CX** GMV81155CX**
Btuh Input (US) High Fire (Natural Gas) 70,000 90,000 115,000
Output (US) High Fire (Natural Gas), BTUH 57,000 74,000 93,000
Output (US) High Fire (LP), BTUH 49,000 64,000 82,000
Btuh Input (US) Low Fire (Natural Gas) 52,500 67,500 86,000
Output (US) Low Fire (Natural Gas), BTUH 42,000 54,000 69,000
Output (US) Low Fire (LP), BTUH 42,000 54,000 69,000
A.F.U.E. 80% 80% 80%
Rated External Static (" w.c.) .20 - .50 .20 - .50 .20 - .50
Temperature Rise (°F) 20 - 50 25 - 55 25 - 55
High Stage Pressure Switch Trip Point (" w.c.) -0.45 -0.60 -0.55
Low Stage Pressure Switch Trip Point (" w.c.) -0.30 -0.30 -0.30
Blower Wheel (D" x W") 10 x 8 10 x 10 10 x 10
Blower Horsepower 3/4 3/4 3/4
Blower Speeds
Max CFM @ 0.5 E.S.P.
Power Supply 115 VAC / 60 HZ / 1 PH 115 VAC / 60 HZ / 1 PH 115 VAC / 60 HZ / 1 PH
Minimum Circuit Ampacity (MCA) (1) 11.7 11.7 11.7
Maximum Overcurrent Device (AMPS)(2) 15 15 15
Transformer (VA) 40 40 40
Primary Limit Setting (°F) 150 150 130
Auxiliary Limit Setting (°F) 150 150 150
Rollout Limit Setting (°F) 300 300 300
Gas Supply Pressure (Natural/Propane) (" w.c.) 7 / 11 7 / 11 7 / 11
Manifold Pressure (Natural/Propane) High Stage (" w.c.) 3.5 / 10 3.5 / 10 3.5 / 10
Manifold Pressure (Natural/Propane) Low Stage ("w.c.) 1.6 / 6.3 1.6 / 6.3 1.6 / 6.3
Orifice Size (Natural/Propane) 43 / 55 43 / 55 43 / 55
Number of Burners 3 4 5
Vent Connector Diameter (inches) (4) 444
Shipping Weight (lbs.) 152 178 194
VARIABLE
Refer to airflow charts on page 13-16.

BLOWER PERFORMANCE SPECIFICATIONS
13
Low-Stage Cooling Speeds
High or Single-Stage Cooling Speeds
NOTES:
* Motor CFM maximum
** Motor CFM minimum
1. These charts are for furnaces installed at 0' - 4,500'. At higher altitudes, a properly derated unit will have the same temperature rise at a
particular CFM, while the ESP at that CFM will be lower.
2. The installation must be adjusted to obtain a temperature rise within the range listed on the furnace nameplate.
3. Do not operate above .5" w.c. ESP in heating mode.
4. Propane gas installations will have a High Stage rise approximately 4° lower than shown in above table.
Cooling
Speed
Tap Adjust Tap CFM @
.1" to .8" W.C.
ESP
Cooling
Speed
Tap Adjust Tap CFM @
.1" to .8" W.C.
ESP
Cooling
Speed
Tap Adjust Tap CFM @
.1" to .8" W.C.
ESP
Minus (-) Tap 540 Minus (-) Tap 720 Minus (-) Tap 720
Nominal 600 Nominal 800 Nominal 800
Plus (+) Tap 660 Plus (+) Tap 880 Plus (+) Tap 880
Minus (-) Tap 720 Minus (-) Tap 990 Minus (-) Tap 990
Nominal 800 Nominal 1,100 Nominal 1,100
Plus (+) Tap 880 Plus (+) Tap 1,210 Plus (+) Tap 1,210
Minus (-) Tap 900 Minus (-) Tap 1,260 Minus (-) Tap 1,260
Nominal 1,100 Nominal 1,400 Nominal 1,400
Plus (+) Tap 1,210 Plus (+) Tap 1,540 Plus (+) Tap 1,540
Minus (-) Tap 1,260 Minus (-) Tap 1,620 Minus (-) Tap 1,620
Nominal 1,400 Nominal 1,800 Nominal 1,800
Plus (+) Tap 1,540 Plus (+) Tap 1,980 Plus (+) Tap 1,980
D
GMV80905CX**
A
B
C
GMV81155CX**
A
B
C
GMV80704BX**
A
B
C
DD
Cooling
Speed
Tap Adjust Tap CFM @
.1" to .8" W.C.
ESP
Cooling
Speed
Tap Adjust Tap CFM @
.1" to .8" W.C.
ESP
Cooling
Speed
Tap Adjust Tap CFM @
.1" to .8" W.C.
ESP
Minus (-) Tap 361** Minus (-) Tap 563** Minus (-) Tap 563**
Nominal 390 Nominal 563** Nominal 563**
Plus (+) Tap 429 Plus (+) Tap 572 Plus (+) Tap 572
Minus (-) Tap 468 Minus (-) Tap 644 Minus (-) Tap 644
Nominal 420 Nominal 715 Nominal 715
Plus (+) Tap 572 Plus (+) Tap 787 Plus (+) Tap 787
Minus (-) Tap 644 Minus (-) Tap 819 Minus (-) Tap 819
Nominal 715 Nominal 910 Nominal 910
Plus (+) Tap 787 Plus (+) Tap 1,001 Plus (+) Tap 1,001
Minus (-) Tap 819 Minus (-) Tap 1,053 Minus (-) Tap 1,053
Nominal 910 Nominal 1,170 Nominal 1,170
Plus (+) Tap 1,001 Plus (+) Tap 1,287 Plus (+) Tap 1,287
D
B
CCC
GMV81155CX**
AAA
GMV80704BX** GMV80905CX**
BB
DD

BLOWER PERFORMANCE SPECIFICATIONS
14
Cooling-BasedContinuousFan
NOTES:
* Motor CFM maximum
** Motor CFM minimum
1. These charts are for furnaces installed at 0' - 4,500'. At higher altitudes, a properly derated unit will have the same temperature rise at a
particular CFM, while the ESP at that CFM will be lower.
2. The installation must be adjusted to obtain a temperature rise within the range listed on the furnace nameplate.
3. Do not operate above .5" w.c. ESP in heating mode.
4. Propane gas installations will have a High Stage rise approximately 4° lower than shown in above table.
Cooling
Speed
Tap Adjust Tap CFM @
.1" to.8" W.C.
ESP
Cooling
Speed
Tap Adjust Tap CFM @
.1" to .8" W.C.
ESP
Cooling
Speed
Tap Adjust Tap CFM @
.1" to .8" W.C.
ESP
Minus (-) Tap 361** Minus (-) Tap 563** Minus (-) Tap 563**
Nominal 361** Nominal 563** Nominal 563**
Plus (+) Tap 370 Plus (+) Tap 563** Plus (+) Tap 563**
Minus (-) Tap 403 Minus (-) Tap 563** Minus (-) Tap 563**
Nominal 448 Nominal 616 Nominal 616
Plus (+) Tap 493 Plus (+) Tap 678 Plus (+) Tap 678
Minus(-) Tap 554 Minus (-) Tap 706 Minus (-) Tap 706
Nominal 616 Nominal 784 Nominal 784
Plus (+) Tap 678 Plus (+) Tap 862 Plus (+) Tap 862
Minus(-) Tap 706 Minus (-) Tap 9*07 Minus(-) Tap 907
Nominal 784 Nominal 1,008 Nominal 1,008
Plus (+) Tap 862 Plus (+) Tap 1,109 Plus (+) Tap 1,109
CCC
DDD
A
BBB
GMV80704BX** GMV80905CX** GMV81155CX**
AA

BLOWER PERFORMANCE SPECIFICATIONS
15
1. These charts arefor furnaces installed at 0' - 4,500'. At higher altitudes, a prooperly derated unti will have the same
temperature rise at a particular CFM, while the ESP at the CFM will be lower.
2. The installation must be adjusted to obtain a emperature rise within the range listed on the furnace nameplate.
3. Do not operate above .5" w.c. EXP in heating mode.
4. Propane gas installations iwll have High Stage rise approximately 4° lower than shown in above table.
Heating
Speed Tap Adjust Tap Low Stage CFM @
.1" to .5" w.c. ESP High Stage CFM @ .1" to .5" w.c. ESP Rise
Minus (-) Tap 810 1,077 48
Nominal 900 1,197 43
Plus (+) Tap 990 1,317 39
Minus (-) Tap 900 1,197 43
Nominal 1,000 1,330 39
Plus (+) Tap 1,100 1,463 35
Minus (-) Tap 990 1,317 39
Nominal 1,100 1,463 35
Plus (+) Tap 1,210 1,609 32
Minus (-) Tap 1,080 1,436 36
Nominal 1,200 1,596 32
Plus (+) Tap 1,320 1650* 29
Heating
Speed Tap Adjust Tap Low Stage CFM @
.1" to .5" w.c. ESP High Stage CFM @ .1" to .5" w.c. ESP Rise
Minus (-) Tap 945 1,257 53
Nominal 1,050 1,397 48
Plus (+) Tap 1,155 1,536 43
Minus (-) Tap 1,035 1,377 48
Nominal 1,150 1,530 43
Plus (+) Tap 1,265 1,682 40
Minus (-) Tap 1,125 1,496 44
Nominal 1,250 1,663 40
Plus (+) Tap 1,375 1,829 36
Minus (-) Tap 1,215 1,616 41
Nominal 1,350 1,796 37
Plus (+) Tap 1,485 1,975 34
Heating
Speed Tap Adjust Tap Low Stage CFM @ .1" to .5" w.c. ESP High Stage CFM @ .1" to .5" w.c. ESP Rise
Minus (-) Tap 1,170 1,556 55
Nominal 1,300 1,729 49
Plus (+) Tap 1,430 1,902 45
Minus (-) Tap 1,215 1,616 53
Nominal 1,350 1,796 47
Plus (+) Tap 1,485 1,975 43
Minus (-) Tap 1,260 1,676 51
Nominal 1,400 1,862 46
Plus (+) Tap 1,540 2000* 41
Minus (-) Tap 1,373 1,825 47
Nominal 1,525 2000* 42
Plus (+) Tap 1,678 2,000* 38
B
C
GMV80704BX** (Rise Range 20 - 50 °F)
D
A
D
GMV80905CX** (Rise Range 25 - 55 °F)
D
B
C
A
GMV81155CX** (Rise Range 25 - 55 °F)
A
B
C
NOTES:
* Motor CFM maximum
** Motor CFM minimum

BLOWER PERFORMANCE SPECIFICATIONS
16
30 40 50 60 70 80 90 110 120
100 130 140 150
100
90 80
70 60 50
40 30 20
10
OUTPUT BTU/HR x 1000
BTU OUTPUT vs TEMPERATURE RISE CHART
TEMPERATURE RISE
600 CFM
700
900
1000
1100
1200
1400
1600
1800
2000
2200
2400 CFM
FORMULAS
BTU OUTPUT = CFM x 1.08 x RISE
RISE = BTU OUTPUT
1.08 ÷ CFM
800

17
WIRING DIAGRAMS
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
HIGH VOLTAGE!
DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS
UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO
DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
GMV8
AUTO RESET
FUSE 3 A
YL
24 VAC
PR
DRAFT PRESSURE SWITCH
INTEGRATED CONTROL
9
3. IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE FURNACE MUST BE
4. UNIT MUST BE PERMANENTLY GROUNDED AND CONFORM TO N.E.C. AND LOCAL CODES.
2. MANUFACTURER'S SPECIFIED REPLACEMENT PARTS MUST BE USED WHEN SERVICING.
REPLACED, IT MUST BE REPLACED WITH WIRING MATERIAL HAVING A TEMPERATURE
1. SET HEAT ANTICIPATOR ON ROOM THERMOSTAT AT 0.7 AMPS.
RATING OF AT LEAST 105
B14933257 REV.00
COLOR CODES:
YL YELLOW
GN GREEN
BK BLACK
OR ORANGE
PR PURPLE
C
RD RED
BR BROWN
WH WHITE
GY GRAY
BU BLUE
PK PINK NOTES:
OVERCURRENT
PROT. DEVICE
°C. USE COPPER CONDUCTORS ONLY.
PLUG CONNECTION
ROLL OUT LIMITS CONTROL
SYSTEM LOCKOUT (RETRIES/RECYCLES EXCEEDED)
4
6
8
7
1
2
3
0
IGNITOR
SURFACE
FLAME
HOT
SENSOR
GND
WH BK
2 STAGE
GAS VALVE
BR
BU
OR
YL
RD
BLOWER
24V HUMIDIFIER
HIGH FIRE
PRESSURE SWITCH
SWITCH (PRESS.)
SWITCH (TEMP.)
FIELD GND
EQUIPMENT GND
FIELD SPLICE
LOW VOLTAGE FIELD
INTERNAL TO
HI VOLTAGE FIELD
JUNCTION
TERMINAL
HI VOLTAGE (115V)
LOW VOLTAGE (24V)
INTEGRATED CONTROL MODULE
TR (9)
MVC (8)
GND (10)
IGNITER
VALVE
GAS
GND
C
MANUAL RESET ROLLOUT
LIMIT CONTROL(S)
24V HUM.
MICRO
Y
24V THERMOSTAT CONNECTIONS
C
PR
G
MVL(7)
PS2 (2)
MVH (1) C
PS1 (12)
AUXILIARY LIMIT
CONTROLS
YLO
W2
W1
LIMIT CONTROL
PR
PRIMARY
BR
HL1 (6)
TO
HLO (11)
NO
PM
HI
PRESSURE
SWITCH
LOW FIRE
C
NO
PRIMARY LIMIT
CONTROL
WIRING TO UNIT
MUST BE PROPERLY
ON SOME MODELS
INDUCTOR COIL
PRESSURE SWITCH
LOW FIRE
YL
RD
BK
WH
INDUCED
BR
GND
WH WH
BK
BR
RD
GN
BU
BR
WH
AUXILIARY
LIMIT CONTROLS
RD BU
WH
VAC
115
VAC
24
PR
BK
RD
OR
YL
YL
BK
EAC-N
EAC-H ELECTRONIC
INTEGRATED CONTROL MODULE
INTEGRATED CONTROL MODULE
AIR CLEANER
HUMIDIFIER
HOT SURFACE
115 VAC
R
24
HUM.
VAC.
TH (5)
XFMR-H
FP (3) IGNITER
FLAME SENSOR
HI FIRE
BLOWER COMPARTMENT
BURNER COMPARTMENT
BLWR
IND LO
HUM-H
IGN-H
IND HI ID
XFMR-N
TRANSFORMER
40 VA
HUM-N
IGN-N
IND-N
CIRCULATOR
JUNCTION BOX
INDUCTOR COIL
GND
BK
BLWR
LINE-H
70kBTU,90kBTU,
115kBTU MODELS
ONLY INDOOR
AIR
POLARIZED AND
GROUNDED.
BLOWER
CIRCULATOR
DOOR
SWITCH
LINE-N
GND
DISCONNECT
312
BU
10 1211
64 5
97 8
PR
RD
BR
WH 16 WIRE HARNESS
24 VAC. HUM.
OVERCURRENT PROTECTION DEVICE
Ø /60 HZ POWER SUPPLY WITH
DISCONNECT POWER
BEFORE SERVICING.
TO 115VAC/ 1
BK
WARNING:
LGND
BOX
LINE-N
LINE H
GND
JUNCTION
N
DOOR SWITCH
W
W
BK
BK
123
PM C HI
3
2
1
HOT
LED
DIAGNOSTIC
EAC LINE
NE UTRAL
5
4
XFMR HUM CIRC LINE XFMR HUM EAC
NONO
CC
C
NO
FUSE
TWIN/ DEHUM
2
3
1
24 V THERMOSTAT CONNECTIONS
G
16 PIN
PLUG
B/C YLO
O Y
R
W2 W1
9 FLASHES = HIGH FIRE PRESSURE SWITCH STUCK OPEN
CONTINUOUS FLASHES = 115 VOLT AC POWER REVERSED
8 FLASHES = CHECK IGNITER OR IMPROPER GROUNDING
5 FLASHES = FLAME SENSED WITH GAS VALVE DE-ENERGIZED
3 FLASHES = LOW FIRE PRESSURE SWITCH STUCK OPEN
2 FLASHES = LOW FIRE PRESSURE SWITCH STUCK CLOSED
STEADY ON = NORMAL OPERATION
4 FLASHES = THERMAL PROTECTIVE DEVICE OPEN
7 FLASHES = LOW FLAME SENSE SIGNAL
1 FLASH =
DEVICE
OVERCURRENT PROTECTION
POWER SUPPLY WITH
TO 115 VAC/ 1/60HZ

18
SCHEMATICS
HIGH VOLTAGE!
DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS
UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO
DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
TYPICALSCHEMATIC
GMV8MODELFURNACES
WHITE-RODGERS50V61-289 INTEGRATED IGNITIONCONTROL
This schematic is for reference only. Not all wiring is as shown above,
referto the appropriate wiringdiagramfor the unit beingserviced.
G
MVH K8b
SWITCH
ROLLOUT LIMIT
AUX
W9
O
BK
YLO YLOTHERMOSTAT
NEU
CIRC.
W10
HOT
CIRC.
G
MICRO
REQUEST FROM
HEAT CIRC.
LOGIC
TRANSISITOR
LOGIC
TRANSISITOR
MVH
MOTOR CONNECTOR
16 PIN VARIABLE SPD
15213
ENABLE
HEAT LOW
HEAT HI
LO
IND
HI
INDNEU
IND
IGN
FP
H1
C
SWITCH
PRESSURE
2ND STAGE
M
P
COM
MV MVH
W2 W2
HUM
EACNEU
EAC
AIR CLEANER
ELECTRONIC INDUCER
HUMN
HUMIDIFIER
W1
G
Y
R
W1
G
Y
B/C
TR
R
TH
24 V.A.C.
XFMRN
XFMR
HLI HLOPS1 PS2
MVL
GND
IGNN
IGNITOR
PROBE
SENSOR
FLAME
1ST STAGE
LIMIT
HIGH
GAS
VALVE
2 STAGE
K6
Q22
1M
.0005
LINE NEU
120 VAC
LINE HOT
SWITCH
PRESSURE