Amana M8 User manual

5151 San Felipe Suite 500 • Houston, TX 77056
www.goodmanmfg.com•www.amana-hac.com
©2011 - 2015 Goodman Manufacturing Company, L.P.
ATTENTION INSTALLING PERSONNEL
As a professional installer, you have an obligation to know the
product better than the customer. This includes all safety pre-
cautions and related items.
Prior to actual installation, thoroughly familiarize yourself with
thisInstructionManual.Payspecialattentiontoallsafetywarn-
ings. Often during installation or repair, it is possible to place
yourself in a position which is more hazardous than when the
unit is in operation.
Remember, it is your responsibility to install the product safely
and to know it well enough to be able to instruct a customer in
its safe use.
Safetyisamatterofcommonsense...amatterofthinkingbefore
acting. Most dealers have a list of specific, good safety
practices...follow them.
The precautions listed in this Installation Manual are intended
as supplemental to existing practices. However, if there is a
direct conflict between existing practices and the content of
this manual, the precautions listed here take precedence.
RECOGNIZE THIS SYMBOL
AS A SAFETY PRECAUTION
NOTE: Please contact your distributor or our website listed
below for the applicable Specification Sheet referred to in this
manual.
Installer: Affixallmanuals
adjacenttotheunit.
These furnaces comply with requirements embodied in
the American National Standard / National Standard of
Canada ANSI Z21.47·CSA-2.3 Gas Fired Central Furnaces.
IO-446C
11/2015
INSTALLATION INSTRUCTIONS FOR
*M(H,S)8 / GD(H,S)8 / GHS8 / GME8
ADS(H,S)8 / AMEH8 GAS FURNACE
(CATEGORYI)
is a registered trademark of Maytag Corporation or its related companies and is used under license. All rights reserved.
TABLEOFCONTENTS
Safety Considerations......................................................3
Additional Safety Considerations ....................................4
Shipping Inspection ..........................................................4
Electrostatic Discharge (ESD) Precautions.......................5
To The Installer..................................................................5
PRODUCTAPPLICATION............................................................5
LOCATIONREQUIREMENTSANDCONSIDERATIONS ..................6
Clearances and Accessibility ...........................................7
Installation Positions.......................................................7
Horizontal Installation .....................................................7
Furnace Suspension..........................................................8
Existing Furnace Removal.................................................8
ThermostatLocation .........................................................8
COMBUSTIONANDVENTILATIONAIRREQUIREMENTS.............8
CATEGORYIVENTING(VERTICALVENTING) ..............................9
EXTERIORMASONRYCHIMNEYS
(CATEGORYIFURNACESONLY) .........................................10
Checklist Summary..........................................................10
Check 1 - Proper chimney termination ..........................11
Check 2 - Any solid or liquid fuel appliances
vented into this chimney channel ..............................11
Check 3 - Chimney Crown Condition...............................12
Check 4 - Debris in Cleanout...........................................12
Check 5 - Liner Condition. ...............................................12
Check 6 - Dilution Air. .....................................................12
Check 7 - Complete the Installation................................12
Fix 1 - Liner Termination .................................................13
Fix2 -ChangeVentingArrangements ..............................13
Fix 3 - Rebuild the Crown ................................................13
Fix 4 - Relining ................................................................13
ELECTRICALCONNECTIONS.....................................................14
Wiring Harness...............................................................14
115 Volt Line Connections ..............................................14
Fossil Fuel Applications .................................................14
Junction Box Relocation .................................................14
24 Volt Thermostat Wiring .............................................15
GME8&AMEH8Furnaces
with 2-Stage Condenser Field Wiring ........................15
SettingtheHeatAnticipator............................................16
115 Volt Line Connection of Accessories........................16
Electronic Air Cleaner .....................................................16
24 Vac Humidifier ...........................................................16
GASSUPPLYANDPIPING ........................................................16
HighAltitudeDerate........................................................17
Propane Gas Conversion ................................................17
Gas Piping Connections..................................................17
Upflow Installations.......................................................18
Counterflow Installations ..............................................18
Gas Piping Checks...........................................................18
Propane Gas Tanks and Piping .......................................19

2
CIRCULATINGAIRANDFILTERS ...............................................20
Ductwork - Air Flow.........................................................20
Filters - Read This Section Before
Installing The Return Air Ductwork ................................20
Upright Installations ......................................................20
Circulation Air Filters .....................................................20
Horizontal Installations .................................................21
SEQUENCEOFOPERATION
(INTEGRATEDIGNITIONCONTROL).....................................21
PowerUp .........................................................................21
HeatingMode ..................................................................22
(Mode DIP switch is set to “1 STG” position) .................22
(Mode DIP Switch is set to “2 STG” position) .................22
Cooling Mode ..................................................................22
Fan Only Mode................................................................22
START-UPPROCEDUREANDADJUSTMENT ..............................23
Furnace Operation..........................................................23
Furnace Start-up .............................................................23
FurnaceShutdown ..........................................................23
Gas Supply Pressure Measurement................................23
Gas Manifold Pressure Measurement and Adjustment.25
Gas Input Rate Measurement (Natural Gas Only)..........27
TemperatureRise.............................................................27
Circulator Blower Speed Adjustment..............................27
Circulator Blower Fan Timing Adjustment .....................28
SettingFurnaceOperating Mode
(GDH8,GME8, *MH8,AMEH8&ADSH8modelsonly) 28
OPERATIONALCHECKS............................................................28
Checking Duct Static .......................................................28
BurnerFlame ...................................................................29
SAFETYCIRCUITDESCRIPTION................................................29
General............................................................................29
IntegratedControl Module .............................................29
Primary Limit...................................................................29
Auxiliary Limit.................................................................29
Rollout Limits ..................................................................29
Pressure Switches ...........................................................29
Flame Sensor...................................................................30
TROUBLESHOOTING ...............................................................30
Electrostatic Discharge (ESD) Precautions.....................30
Diagnostic Chart .............................................................30
Fault Recall .....................................................................30
(Furnaces equipped with
PCBBF132 Control Board only) ...................................30
ResettingFromLockout ...................................................30
MAINTENANCE........................................................................30
Annual inspection...........................................................30
Filters ..............................................................................31
Filter Maintenance..........................................................31
Filter Removal .................................................................31
Induced Draft and Circulator Blower Motors ................31
Flame Sensor (Qualified Servicer Only) .........................31
Igniter (Qualified Servicer Only) ....................................31
Burners............................................................................31
CLEANING(QUALIFIEDSERVICERONLY)..................................31
BEFORELEAVINGANINSTALLATION ........................................32
REPAIRANDREPLACEMENTPARTS..........................................32
ComponentID..................................................................33
APPENDIXDTROUBLESHOOTINGCHART ...............................34
PCBBF134&PCBBF132CONTROLBOARDS .................34
BLOWERPERFORMANCEDATA ...............................................37
*M(H/S)8 .........................................................................37
GDS8/ADSS8 ....................................................................38
GHS8 ................................................................................38
GDH8/ADSH8 .................................................................39
GME8 ...............................................................................40
AMEH8.............................................................................41
*(M, D, H)S8 / ADSS8 Wiring Diagram ..................................42
GME8 / AMEH8 Wiring Diagram...........................................43
Honeywell Gas Valve.......................................................43
*(M,D)H8 / ADSH8 Wiring Diagram ......................................44
Honeywell Gas Valve.......................................................44

3
G OODMAN
DAMAGE ARISING FROM IMPROPER SERVICE OR SERVICE PROCEDURES .
I
F YOU INSTALL OR PERFORM SERVICE ON THIS UNIT , YOU ASSUME
RESPONSIBILITY FOR ANY PERSONAL INJURY OR PROPERTY DAMAGE
WHICH MAY RESULT . M ANY JURISDICTIONS REQUIRE A LICENSE TO
INSTALL OR SERVICE HEATING AND AIR CONDITIONING EQUIPMENT .
WILL NOT BE RESPONSIBLE FOR ANY INJURY OR PROPERTY
WARNING
S AFETY C ONSIDERATIONS
Adhere to the following warnings and cautions when installing,
adjusting,altering,servicing, or operatingthe furnace. To ensure
proper installation and operation, thoroughly read this manual
for specifics pertaining to the installation and application of this
product.
This furnace is manufactured for use with natural gas. It may be
fieldconvertedtooperateonL.P.gasbyusing the appropriate L.P.
conversionkitlistedinthePROPANEGAS/HIGHALTITUDEINSTAL-
LATIONS section of this manual
Install this furnace only in a location and position as specified in
LOCATIONREQUIREMENTS&CONSIDERATIONSsectionandINSTAL-
LATION POSITIONS section of thismanual.
Provide adequate combustion and ventilation air to the furnace
asspecifiedinCOMBUSTION&VENTILATIONAIRREQUIREMENTS
sectionofthismanual.
Combustion products must be discharged to the outdoors. Con-
nect this furnace to an approved vent system only, as specified in
CATEGORY 1 VENTING section of this manual.
Never test for gas leaks with an open flame. Use a commercially
available soap solution made specifically for the detection of
leaks to check all connections, as specified in GAS SUPPLY AND
PIPING section of this manual.
Always install a furnace to operate within the furnace’s intended
temperature-rise range with a duct system which has external
static pressure within the allowable range, as specified on the
furnace rating plate and OPERATIONAL CHECKSsection of these
instructions.
When a furnace is installed so that supply ducts carry air circu-
lated by the furnace to areas outside the space containing the
furnace, the return air shall also be handled by duct(s) sealed to
the furnace casing and terminating outside the space containing
thefurnace.
A gas-fired furnace for installation in a residential garage must
be installed as specified in the LOCATION REQUIREMENTS AND
CONSIDERATIONS section ofthismanual.
This furnace may be used as a construction site heater only if
certainconditionsaremet.TheseconditionsarelistedinthePROD-
UCT APPLICATION section of this manual.
T O PREVENT PERSONAL INJURY OR DEATH DUE TO IMPROPER
INSTALLATION , ADJUSTMENT , ALTERATION , SERVICE OR MAINTENANCE ,
REFER TO THIS MANUAL . F OR ADDITIONAL ASSISTANCE OR
INFORMATION , CONSULT A QUALIFIED INSTALLER , SERVICER AGENCY OR
THE GAS SUPPLIER .
WARNING
I F THE INFORMATION IN THESE INSTRUCTIONS IS NOT FOLLOWED
EXACTLY , A FIRE OR EXPLOSION MAY RESULT CAUSING PROPERTY
DAMAGE
, PERSONAL INJURY OR LOSS OF LIFE .
D O NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND
LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE .
D
O NOT TRY TO LIGHT ANY APPLIANCE .
D
O NOT TOUCH ANY ELECTRICAL SWITCH ; DO NOT USE ANY PHONE
IN YOUR BUILDING .
I
MMEDIATELY CALL YOUR GAS SUPPLIER FROM A NEIGHBOR ’ S
PHONE . F OLLOW THE GAS SUPPLIER ’ S INSTRUCTIONS .
I
F YOU CANNOT REACH YOUR GAS SUPPLIER , CALL THE FIRE
DEPARTMENT .
I
NSTALLATION AND SERVICE MUST BE PERFORMED BY A QUALIFIED
INSTALLER , SERVICE AGENCY OR THE GAS SUPPLIER .
WHAT TO DO IF YOU SMELL GAS:




WARNING
T HIS PRODUCT CONTAINS OR PRODUCES A CHEMICAL OR CHEMICALS
WHICH MAY CAUSE SERIOUS ILLNESS OR DEATH AND WHICH ARE
KNOWN TO THE S TATE OF C ALIFORNIA TO CAUSE CANCER , BIRTH
DEFECTS OR OTHER REPRODUCTIVE HARM .
WARNING
H EATING UNIT SHOULD NOT BE UTILIZED WITHOUT REASONABLE ,
ROUTINE , INSPECTION , MAINTENANCE AND SUPERVISION . I F THE
BUILDING IN WHICH ANY SUCH DEVICE IS LOCATED WILL BE VACANT ,
CARE SHOULD BE TAKEN THAT SUCH DEVICE IS ROUTINELY INSPECTED ,
MAINTAINED AND MONITORED . IN THE EVENT THAT THE BUILDING
MAYBE EXPOSED TO FREEZING TEMPERATURES AND WILL BE VACANT ,
ALL WATER - BEARING PIPES SHOULD BE DRAINED , THE BUILDING SHOULD
BE PROPERLY WINTERIZED , AND THE WATER SOURCE CLOSED . IN THE
EVENT THAT THE BUILDING MAY BE EXPOSED TO FREEZING
TEMPERATURES AND WILL BE VACANT , ANY HYDRONIC COIL UNITS
SHOULD BE DRAINED AS WELL AND , IN SUCH CASE , ALTERNATIVE HEAT
SOURCES SHOULD BE UTILIZED .
WARNING
T O PREVENT POSSIBLE PROPERTY DAMAGE , PERSONAL INJURY OR
DEATH DUE TO ELECTRICAL SHOCK , THE FURNACE MUST BE LOCATED TO
PROTECT THE ELECTRICAL COMPONENTS FROM WATER .
WARNING

4
S HOULD OVERHEATING OCCUR OR THE GAS SUPPLY FAIL TO SHUT OFF ,
TURN OFF THE MANUAL GAS SHUTOFF VALVE EXTERNAL TO THE
FURNACE BEFORE TURNING OFF THE ELECTRICAL SUPPLY .
WARNING
P OSSIBLE PROPERTY DAMAGE , PERSONAL INJURY OR DEATH DUE TO
FIRE , EXPLOSION , SMOKE , SOOT , CONDENSATION , ELECTRICAL SHOCK
OR CARBON MONOXIDE MAY RESULT FROM IMPROPER INSTALLATION ,
REPAIR OPERATION , OR MAINTENANCE OF THIS PRODUCT .
WARNING
T O PREVENT PERSONAL INJURY OR DEATH DUE TO IMPROPER
INSTALLATION , ADJUSTMENT , ALTERATION , SERVICE OR MAINTENANCE ,
REFER TO THIS MANUAL . F OR ADDITIONAL ASSISTANCE OR
INFORMATION , CONSULT A QUALIFIED INSTALLER , SERVICER AGENCY OR
THE GAS SUPPLIER .
WARNING
T O PREVENT PERSONAL INJURY OR DEATH DUE TO ASPHYXIATION , THIS
FURNACE MUST BE C ATEGORY I VENTED . D O NOT VENT USING
C
ATEGORY III VENTING .
P
ROVISIONS MUST BE MADE FOR VENTING COMBUSTION PRODUCTS
OUTDOORS THROUGH A PROPER VENTING SYSTEM . T HE LENGTH OF
FLUE PIPE COULD BE A LIMITING FACTOR IN LOCATING THE FURNACE .
WARNING
ADDITIONALSAFETYCONSIDERATIONS
• This furnace is approved for Category I Venting only.
• Provisions must be made for venting combustion
productsoutdoorsthroughaproperventingsystem.The
length of flue pipe could be a limiting factor in locating
thefurnace.
B10259-216
CO can cause serious illness including permanent brain
damageor death.
Advertencia especial para la instalación de calentadores ó manejadoras
de aire en áreas cerradas como estacionamientos ó cuartos de servicio.
B10259-216
El monóxido de carbono puede causar enfermedades severas
como daño cerebral permanente ó muerte.
Las emisiones de monóxido de carbono pueden circular a través
del aparato cuando se opera en cualquier modo.
B10259-216
RISQUE D'EMPOISONNEMENT AU MONOXYDE DECARBONE
Le monoxyde de
des carbone peutcauserdes maladies gravestellesque dommages permanents au cerveau et meme la mort.
Cette ventilation est nécessaire pour éviterle danger d'intoxication
au CO pouvant survenir si un appareilproduisant du monoxyde
de carbone continue de fonctionner au sein de la zone confinée.
SHIPPINGINSPECTION
All units are securely packed in shipping containers tested ac-
cording to International Safe Transit Association specifications.
The carton must be checked upon arrival for external damage. If
damage is found, a request for inspection by carrier’s agent must
be made in writing immediately.
The furnace must be carefully inspected on arrival for damage
and bolts or screws which may have come loose in transit. In the
eventofdamage the consigneeshould:
1. Make a notation on delivery receipt of any visible damage
to shipment or container.
2. Notify carrier promptly and request an inspection.
3. With concealed damage, carrier must be notified as soon
as possible - preferably within five days.
4. Filetheclaimwiththefollowingsupportdocumentswithin
a nine month statute of limitations.
• Original or certified copy of the Bill of Lading, or
indemnitybond.
• Original paid freight bill or indemnity in lieu thereof.
• Original or certified copy of the invoice, showing trade
and other discounts or reductions.
• Copy of the inspection report issued by carrier’s
representative at the time damage is reported tocarrier.
The carrier is responsible for making prompt inspection of dam-
age and for a thorough investigation of each claim. The distribu-
tor or manufacturer will not accept claims from dealers for trans-
portation damage.
Keepthisliteratureinasafeplaceforfuturereference.

5
ELECTROSTATIC DISCHARGE(ESD)PRECAUTIONS
NOTE: Dischargebody’s staticelectricitybeforetouchingunit. An
electrostaticdischargecanadverselyaffectelectricalcomponents.
Use the following precautions during furnace installation and ser-
vicing to protect the integrated control module from damage. By
putting the furnace, the control, and the person at the same elec-
trostatic potential, these steps will help avoid exposing the inte-
grated control module to electrostatic discharge. This procedure
is applicable to both installed and non-installed (ungrounded)
furnaces.
1. Disconnect all power to the furnace. Do not touch the
integrated control module or any wire connected to the
control prior to discharging your body’s electrostatic
chargeto ground.
2. Firmly touch a clean, unpainted, metal surface of the
furnaces near the control. Any tools held in a person’s
hand during grounding will be discharged.
3. Service integrated control module or connecting wiring
following the discharge process in step 2. Use caution not
to recharge your body with static electricity; (i.e., do not
moveorshuffleyourfeet,donottouchungroundedobjects,
etc.). If you come in contact with an ungrounded object,
repeat step 2 before touching control or wires.
4. Discharge your body to ground before removing a new
control from its container. Follow steps 1 through 3 if
installing the control on a furnace. Return any old or new
controlstotheircontainersbeforetouchinganyungrounded
object.
TOTHE INSTALLER
Before installing this unit, please read this manual thoroughly to
familiarize yourself with specific items which must be adhered to,
including but not limited to: unit maximum external static pres-
sure, gas pressures, BTU input rating, proper electrical connec-
tions,circulatingairtemperaturerise,minimumormaximumCFM,
and motor speed connections, and venting. These furnaces are
designed for Category I venting only.
T O PREVENT PROPERTY DAMAGE , PERSONAL INJURY OR DEATH DUE TO
FIRE , DO NOT INSTALL THIS FURNACE IN A MOBILE HOME , TRAILER , OR
RECREATIONAL VEHICLE .
WARNING
P RODUCT A PPLICATION
This furnace is primarily designed for residential home-heating
applications. It is NOT designed or certified for use in mobile
homes, trailers or recreational vehicles. Neither is it designed or
certified for outdoor applications. The furnace must be installed
indoors (i.e., attic space, crawl space, or garage area provided the
garage area is enclosed with an operating door).
This furnace can be used in the following non-industrial commer-
cial applications:
Schools,Officebuildings,Churches,Retailstores,
Nursinghomes,Hotels/motels,Commonorofficeareas
In such applications , the furnace must be installed with the fol-
lowing stipulations:
• It must be installed per the installation instructions
provided and per local and national codes.
• It must be installed indoors in a building constructed on
site.
• Itmust bepart of a ducted system and notused ina free
air delivery application.
• It must not be used as a “make-up” air unit.
• All other warranty exclusions and restrictions apply.
Thisfurnace maybe used as a constructionsiteheaterONLY if the
following conditions are met:
• The vent system is permanently installed per these
installation instructions.
• A room thermostat is used to control the furnace. Fixed
jumpersthatprovidecontinuousheatingCANNOTbeused
and can cause long term equipment damage. Bi-metal
thermostats,oranythermostataffectedbyvibrationmust
not be used during construction.
• Return air ducts are provided and sealed to the furnace.
• Areturnairtemperaturerangebetween60ºF(16ºC)and
80ºF (27ºC) is maintained.
• Air filters are installed in the system and replaced daily
during construction and upon completion of
construction.
• Theinputrateandtemperaturerisearesetperthefurnace
rating plate.
• 100% outside air must be used for combustion during
construction. Temporary ducting may be used to supply
outsideairtothefurnaceforcombustion–donotconnect
this duct directly to the furnace. Size this duct according
to NFPA 54/ANSI Z223.1 section for Combustion and
Ventilation Air.
•The furnace heat exchanger, components, duct system,
air filters and evaporator coils are thoroughly cleaned
following final construction clean up by a qualified
person.
• All furnace operating conditions (including ignition,
input rate, temperature rise and venting) are verified by
a qualified person according to these installation
instructions.
• Furnace doors must be in place on the furnace while the
furnace is operating in any mode.
Damage or repairs due to failure to comply with these require-
mentsarenotcoveredunder the warranty.
NOTE: The Commonwealth of Massachusetts requires that the
following additional requirements must also be met:
• Gas furnaces must be installed by a licensed plumber or
gas fitter.
• A T-handle gas cock must be used.
• Iftheunit is tobeinstalled inanattic, the passagewayto
and the service area around the unit must have flooring.

6
T O PREVENT POSSIBLE EQUIPMENT DAMAGE , PROPERTY DAMAGE ,
PERSONAL INJURY OR DEATH , THE FOLLOWING BULLET POINTS MUST BE
OBSERVED WHEN INSTALLING THIS UNIT .
WARNING
Follow the instructions listed below when selecting a furnace lo-
cation. Refer also to the guidelines provided in Combustion and
VentilationAirRequirements.
• Centrallylocatethefurnacewithrespecttotheproposed
or existing air distribution system.
• Ensure the temperature of the return air entering the
furnace is between 55°F and 100°F when the furnace is
heating.
• If the furnace is installed in an application where the
typical operating sound level of a furnace is deemed
objectionable, an optional sound reduction kit is
available. Consult your local distributor for more details.
• Provisions must be made for venting combustion
productsoutdoorsthroughaproperventingsystem.The
length of flue pipe could be a limiting factor in locating
thefurnace.
• Ensure adequate combustion air is available for the
furnace. Improper or insufficient combustion air can
expose building occupants to gas combustion products
thatcouldincludecarbonmonoxide.RefertoCombustion
andVentilationAirRequirements.
• Thefurnace must be level. If the furnace is tobe seton a
floorthatmaybecomewetordampattimes,thefurnace
should be supported above the floor on a concrete base
sized approximately 1-1/2" larger than the base of the
furnace.
• Ensure upflow or horizontal furnaces are not installed
directlyoncarpeting,oranyother combustible material.
The only combustible material allowed is wood.
• Exposure to contaminated combustion air will result in
safetyandperformance-relatedproblems. Donotinstall
the furnace where the combustion air is exposed to the
following substances:
chlorinated waxes or cleaners
chlorine-based swimming pool chemicals
water softening chemicals
deicing salts or chemicals
carbon tetrachloride
halogen type refrigerants
cleaning solutions (such as perchloroethylene)
printing inks
paint removers
varnishes
hydrochloric acid
cements and glues
antistatic fabric softeners for clothes dryers
and masonry acid washing materials
• If the furnace is used in connection with a cooling unit,
install the furnace upstream or in parallel with the
cooling unit coil. Premature heat exchanger failure will
result if the cooling unit coil is placed ahead of the
furnace.
T O PREVENT PROPERTY DAMAGE , PERSONAL INJURY OR DEATH DUE TO
FIRE , DO NOT INSTALL THIS FURNACE IN A MOBILE HOME , TRAILER , OR
RECREATIONAL VEHICLE .
WARNING
Toensureproperfurnaceoperation,install,operateandmaintain
the furnace in accordance with these installation and operation
instructions, all local building codes and ordinances. In their ab-
sence,followthelatesteditionoftheNationalFuelGasCode(NFPA
54/ANSI Z223.1), and/or CAN/CSA B149 Installation Codes, local
plumbing or waste water codes, and other applicable codes.
AcopyoftheNationalFuelGasCode(NFPA54/ANSIZ223.1)canbe
obtained from any of the following:
AmericanNationalStandardsInstitute
25 West 43rd Street, 4th Floor
NewYork,NY10036
NationalFireProtectionAssociation
1 Batterymarch Park
Quincy, MA 02169-7471
CSAInternational
8501 East Pleasant Valley
Cleveland, OH 44131
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 ac-
cordance with “ASHRAE Guide” or “Manual J-Load Calculations”
published by the Air Conditioning Contractors of America.
In the USA, this furnace MUST be installed in accordance with the
latest edition of the ANSI Z223.1 booklet entitled “National Fuel
Gas Code” (NFPA 54), and the requirements or codes of the local
utility or other authority having jurisdiction. Additional helpful
publications available from the NFPA are, NFPA 90A - Installation
of Air Conditioning and Ventilating System and NFPA 90B - Warm
Air Heating and Air Conditioning System.
All venting shall be in accordance with the National Fuel Gas
Code, ANSI Z223.1, or applicable local building and/or air condi-
tioning codes.
NOTE: Furnaces with NOx screens meet the California NOx emis-
sion standards and California seasonal efficiency standards. AN-
NUAL inspections of the furnace and its vent system is strongly
recommended.
L OCATION R EQUI REMENTS AND CONSIDERATIONS
Your unit model type determines which installation procedures
mustbeused.For*MH8,*MS8,andGHS8models,youmustfollow
instructions for Horizontal Left, Horizontal Right or Upflow instal-
lations only. These furnaces are not approved for Downflow in-
stallations.
DownflowmodelsGD(H,S)ARENOTAPPROVEDFORHORIZONTAL
OR UPFLOW INSTALLATIONS. For these models, use only the in-
structions for downflow installation only.

7
For vertical (upflow or downflow) applications, the
minimumcoolingcoilwidthshallnotbelessthanfurnace
width minus 1”. Additionally, a coil installed above an
upflow furnace or under a counterflow furnace may be
the same width as the furnace or may be one size larger
than the furnace. Example: a “C” width coil may be
installed with a “B” width furnace.
Forupflow applications,the front of the coil and furnace
must face the same direction.
• Ifthe furnace is installed in a residential garage, position
the furnace so that the burners and ignition source are
locatednotlessthan18inches(457mm)abovethefloor.
Protect the furnace from physical damage by vehicles.
• If the furnace is installed horizontally, the furnace access
doorsmustbeverticalsothattheburnersfirehorizontally
into the heat exchanger. Do not install the unit with the
access doors on the “up/top” or “down/bottom” side of
thefurnace.
• Donotconnectthisfurnacetoachimneyfluethatserves
a separate appliance designed to burn solid fuel.
• For counterflow installations, the air conditioning coil
must be downstream from the heat exchanger of the
furnace.
•Counterflow installation over a noncombustible floor.
Before setting the furnace over the plenum opening,
ensure the surface around the opening is smooth and
level. A tight seal should be made between the furnace
base and floor by using a silicon rubber caulking
compoundorcementgrout.
• Counterflow installation over a combustible floor. If
installationoveracombustible floor becomes necessary,
use an accessory subbase (see Specification Sheet
applicableto your modelfor details).A specialaccessory
subbase must be used for upright counterflow unit
installations over any combustible material including
wood.Followtheinstructionswiththesubbaseforproper
installations. Do not install the furnace directly on
carpeting, tile, or other combustible material other than
wood flooring. (NOTE: The subbase will not be required
if an air conditioning coil is installed between the supply
air opening on the furnace and the floor.
Top - 1"
Side
Clearance - 1"
Back - 0"
Front Clearance - 3"
V
ent Pipe Clearance to Combustibles-
6" using Single Wall Connector or 1"
using B-1 vent.
• Adequate combustion/ventilation air must be supplied
tothecloset.
• Furnace must be completely sealed to floor or base.
Combustion/ventilationairsupplypipesmustterminate
12" from top of closet and 12" from floor of closet. DO
NOT remove solid base plate for side return.
• Returnairductsmustbecompletelysealedtothefurnace
and terminate outside the enclosure surfaces.
CLEARANCES AND ACCESSIBILITY
Unobstructedfrontclearanceof24"forservicingisrecommended.
TOP
B1-VENT SINGLE (PLENUM)
1" 6" 1" 3" 0" 1"
VENT SIDES FRONT BACK
Top clearance for horizontal configuration - 1"
INSTALLATIONPOSITIONS
An upflow furnace may be installed in an upright position or hori-
zontal on either the left or right side panel. Do not install this
furnace on its back. For vertically installed upflow furnaces, re-
turn air ductwork may be attached to the side panel(s) and/or
basepan. For horizontally installed upflow furnaces, return air
ductwork must be attached to the basepan. For counterflow fur-
naces, return ductwork must be attached to the top end of the
blowercompartment.
NOTE:Ductworkmustneverbeattachedtothebackofthefurnace.
HORIZONTALINSTALLATION
For
horizontal installations,
insert the
#8 x 5/8 screw
from the
literature package.
Linecontacttoframingispermittedwhen installedinthehorizon-
tal configuration. Line contact is defined as the portion of the
cabinet that is formed by the intersection of the top and side.
ACCESSIBILITYCLEARANCE,WHEREGREATER,SHOULDTAKEPRECE-
DENCEOVERMINIMUMFIREPROTECTIONCLEARANCE. Agas-fired
furnace for installation in a residential garage must be installed

8
e. Test for draft hood equipped appliance spillage at the
drafthoodreliefopeningafter5minutesof main burner
operation. Use the flame of a match or candle;
f. After it has been determined that each appliance
connected to the venting system properly vents when
testedasoutlinedabove,returndoors,windows,exhaust
fans, fireplace dampers and any other gas burning
appliance to their previous conditions of use;
g. If improper venting is observed during any of the above
tests,thecommonventingsystemmustbecorrected.
Corrections must be in accordance with the latest edition of the
NationalFuelGasCodeNFPA54/ANSIZ223.1and/orCAN/CSAB149
Installation Codes.
Ifresizingisrequiredonanyportionoftheventingsystem,usethe
appropriate table in the latest edition of the National Fuel Gas
Code ANSI Z223.1 and/or CAN/CSA B149 Installation Codes.
THERMOSTATLOCATION
Inanareahavinggoodaircirculation,locatethethermostat about
five feet high on a vibration-free inside wall. Do not install the
thermostat where it may be influenced by any of the following:
• Drafts, or dead spots behind doors, in corners, or under
cabinets.
• Hot or cold air from registers.
• Radiant heat from the sun.
• Light fixtures or other appliances.
• Radiant heat from a fireplace.
• Concealed hot or cold water pipes, or chimneys.
• Unconditioned areas behind the thermostat, such as an
outside wall.
Consulttheinstructionspackagedwiththethermostatformount-
ing instructions and further precautions.
C OMBUSTION AND V ENTILATION A IR R EQUIREMENTS
T O AVOID PROPERTY DAMAGE , PERSONAL INJURY OR DEATH ,
SUFFICIENT FRESH AIR FOR PROPER COMBUSTION AND VENTILATION OF
FLUE GASES MUST BE SUPPLIED . M OST HOMES REQUIRE OUTSIDE AIR BE
SUPPLIED INTO THE FURNACE AREA .
WARNING
Improvedconstruction and additional insulation in buildings have
reduced heat loss by reducing air infiltration and escape around
doorsandwindows. Thesechangeshavehelpedinreducingheat-
ing/cooling costs but have created a problem supplying combus-
tion and ventilation air for gas fired and other fuel burning appli-
ances. Appliances that pull air out of the house (clothes dryers,
exhaust fans, fireplaces, etc.) increase the problem by starving
appliances for air.
Housedepressurizationcancausebackdraftingorimpropercom-
bustion of gas-fired appliances, thereby exposing building occu-
pantstogascombustionproductsthatcouldincludecarbonmon-
oxide.
so that the ignition source and burners are located not less than
eighteeninches(18")abovethefloorandisprotectedorlocatedto
prevent physical damage by vehicles. A gas furnace must not be
installed directly on carpeting, tile, or other combustible materi-
als other than wood flooring.
FURNACESUSPENSION
If suspending the furnace from rafters or joist, use 3/8" threaded
rod and 2”x2”x3/8” angle iron as shown below. The length of rod
will depend on the application and the clearances necessary.
Suspended Furnace
EXISTING FURNACE REMOVAL
NOTE:Whenanexistingfurnaceisremovedfromaventingsystem
serving other appliances, the venting system may be too large to
properly vent the remaining attached appliances.
ThefollowingventtestingprocedureisreproducedfromtheAmeri-
canNationalStandard/NationalStandardofCanadaforGas-Fired
Central Furnaces ANSI Z21.47-Latest Edition, CSA-2.3-Latest Edi-
tion Section 1.23.1. The following steps shall be followed with
each appliance connected to the venting system placed in opera-
tion, while any other appliances connected to the venting system
are not in operation:
a. Seal any unused openings in the venting system;
b. Inspecttheventingsystem for proper sizeandhorizontal
pitch, as required by the National Fuel Gas Code, ANSI
Z223.1ortheCAN/CSAB149InstallationCodesandthese
instructions. Determine that there is no blockage or
restriction, leakage, corrosion and other deficiencies
which could cause an unsafe condition;
c. In so far as practical, close all building doors and
windows and all doors between the space in which the
appliance(s)connectedtotheventingsystemarelocated
and other spaces of the building. Turn on clothes dryers
and any appliance not connected to the venting system.
Turn on any exhaust fans, such as range hoods and
bathroom exhausts, so they shall operate at maximum
speed. Do not operate a summer exhaust fan. Close
fireplace dampers;
d. Followthelightinginstructions.Placetheappliancebeing
inspected in operation. Adjust thermostat so appliance
shall operate continuously;

9
If this furnace is to be installed in the same space with other gas
appliances, such as a water heater, ensure there is an adequate
supply of combustion and ventilation air for all appliances. Refer
to the latest edition of the National Fuel Gas Code NFPA 54/ANSI
Z223.1 or CAN/CSA B149 Installation Codes or applicable provi-
sions of the local building codes for determining the combustion
air requirements for the appliances.
This furnace must use indoor air for combustion. It cannot be in-
stalledasadirectvent(i.e.,sealedcombustion)furnace.
Most homes will require outside air be supplied to the furnace
area by means of ventilation grilles or ducts connecting directly
to the outdoors or spaces open to the outdoors such as attics or
crawl spaces.
C ATEGORY IV ENTING (V ERTICAL V ENTING )
T O PREVENT POSSIBLE PERSONAL INJURY OR DEATH DUE TO
ASPHYXIATION , THIS FURNACE MUST BE C ATEGORY I VENTED . D O NOT
VENT USING C ATEGORY III VENTING .
WARNING
CategoryIVenting isventingatanon-positivepressure. Afurnace
vented as Category I is considered a fan-assisted appliance and
theventsystemdoesnothavetobe“gastight.” NOTE: Singlestage
gas furnaces with induced draft blowers draw products of com-
bustion through a heat exchanger allowing, in some instances,
common venting with natural draft appliances (i.e. water heat-
ers). All installations must be vented in accordance with National
FuelGasCodeNFPA 54/ANSIZ223.1 -latestedition.InCanada,the
furnaces must be vented in accordance with the National Stan-
dardofCanada,CAN/CSAB149.1andCAN/CSAB149.2-latestedi-
tions and amendments.
NOTE: Masonry vent kit (MVK-01 and MVK-02) is to only be used
on interior masonry chimneys or qualifying exterior masonry
chimney applications identified in the MVK kit installation
instructions. To ensure safe and reliable operation, use only the
kit listed for your model.
Kit Input KBTU Range Limit Setting
MVK-01 40-100 250°F
MVK-02 120-140 290°F
Note: This kitis for use on Amana®brand and Goodman®brand 80%AFUE,
33” tall “H” and “S” model furnaces installed in the upflow position only.
NOTE:TheverticalheightoftheCategoryIventingsystemmustbe
at least as great as the horizontal length of the venting system.
T O PREVENT POSSIBLE PERSONAL INJURY OR DEATH DUE TO
ASPHYXIATION , COMMON VENTING WITH OTHER MANUFACTURER ’ S
INDUCED DRAFT APPLIANCES IS NOT ALLOWED .
WARNING
TheminimumventdiameterfortheCategoryIventingsystemisas
shown:
UPFLOW COUNTERFLOW
40 4 Inch 4 Inch
60 4 Inch 4 Inch
80 4 Inch 4 Inch
100 5 Inch 5 Inch
120 5 Inch N/A
140 5 Inch N/A
MODEL MINIMUM VENT
Undersomeconditions,largerventsthanthose shownabovemay
berequiredorallowed. Whenanexistingfurnaceisremovedfrom
aventingsystemservingotherappliances,theventingsystemmay
be too large to properly vent the remaining attached appliances.
Upflow or Horizontal units are shipped with the induced draft
blowerdischargingfromthetopofthefurnace. (“Top”isasviewed
for an upflow installation.) The induced draft blower can be ro-
tated 90 degrees with the (0270F01119) chimney transition bot-
tom kit for Category I venting. For upflow models installed verti-
cally or horizontally, a four inch single wall pipe can be used to
extend the induced draft blower outlet 1/2” beyond the furnace
cabinet. THIS PRODUCT IS NOT DESIGNED FOR COUNTERCLOCK-
WISEINDUCEDDRAFTBLOWERROTATION.
Vent the furnace in accordance with the National Fuel Gas Code
NFPA 54/ANSI Z223.1 - latest edition.
Venting- FurnaceInstalledinHorizontalPosition
THIS FURNACE IS NOT DESIGN CERTIFIED TO BE HORIZONTALLY
VENTEDTHROUGHANEXTERIORSIDEWALL.
The following describes an optional venting procedure when the
furnace is installed in the horizontal left discharge position.
To rotate the induced draft blower clockwise, you will need to
purchase one (0270F01119) chimney transition bottom kit.
1. Disconnect electrical power from the furnace.
2. Disconnecttheinduceddraftblowerpowerleads,fluepipe,
and pressure switch tubing.
3. Removetheroundcutoutfromtherightsideofthewrapper.
4. Remove and save the four screws that fasten the induced
draft blower to the flue collector box.
5. Remove and save the three screws that hold the chimney
assembly to the induced draft blower.
6. Remove and save the four screws that fasten the chimney
toptothechimneybottom.

10
7. Removethechimney transitionbottomfromthetransition
bottomkit.
8. Install the chimney top with the four screws retained from
step 6 onto the new chimney transition bottom from the
transition bottom kit.
9. Remove the induced draft blower and install the new
chimney assembly to it using the three screws retained
fromstep5.
10. Rotate the induced draft blower 90 degrees to the right,
feedthefluepipethroughtheroundcutoutfromtheoutside
of the wrapper, and fit onto the chimney top assembly.
Securethepipetothechimneytopfromthefront,top,and
bottom using (3) screws and rotating the induced draft
blower to properly orient the assembly. NOTE: If the pipe
sectionislessthan18”,thenattachitdirectlytothechimney
topon3sidesandfeeditthroughtheroundcutoutfromthe
inside of the wrapper.
11. Reattach the induced draft blower using the (4) screws
retained from step 3. Ensure the gasket located between
the induced draft blower and collector box is rotated
accordingly.
12. Reconnect the induced draft blower power leads. NOTE: If
thewiresarenotlongenough,pullextrawirefromthewire
bundleintheblowercompartment.
13. Reconnecttheremainingfluepipe,andthepressureswitch
tubing.Ensurethatallwiresandthepressureswitchtubing
is at least one inch from the flue pipe, or any other hot
surface.
14. Restorepowertofurnace.
NOTE: In a horizontal installation the air conditioning coil must
be adequately supported by proper brackets and supports.
Inadequatecoil supportcan resultin furnace cabinet distortion
and air leakage.
Counterflow units are shipped with the induced draft blower dis-
chargingfromthe topof the furnace. (“Top” asviewedforacoun-
terflow installation.)
Vent the furnace in accordance with the National Fuel Gas Code
NFPA54/ANSI Z223.1-latest edition.
N EVER ALLOW THE PRODUCTS OF COMBUSTION , INCLUDING CARBON
MONOXIDE , TO ENTER THE RETURN DUCTWORK OR CIRCULATION AIR
SUPPLY .
WARNING
EXTERIOR MASONRY CHIMNEYS (CATEGORY IFURNACES ONLY)
An exterior masonry chimney is defined as a “Masonry” chimney
exposedtotheoutdoorsononeormoresidesbelowtheroofline.”
The ability to use a clay lined masonry chimney depends on a
parameter not associated with interior chimneys. This variable is
the geographic location of the installation. Researchers have dis-
coveredthatthewinterdesign temperatures have adirectimpact
on the suitability of this type of venting. In most situations, the
existing masonry chimneys will require a properly sized metallic
liner.
P OSSIBILITY OF PROPERTY DAMAGE , PERSONAL INJURY OR DEATH
DAMAGING CONDENSATION CAN OCCUR INSIDE MASONRY CHIMNEYS
WHEN A SINGLE FAN - ASSISTED C ATEGORY I APPLIANCE (80% AFUE
FURNACE ) IS VENTED WITHOUT ADEQUATE DILUTION AIR . D O NOT
CONNECT AN 80% FURNACE TO A MASONRY CHIMNEY UNLESS THE
FURNACE IS COMMON VENTED WITH A DRAFT HOOD EQUIPPED
APPLIANCE OR THE CHIMNEY IS LINED WITH A METAL LINER OR T YPE B
METAL VENT . A LL INSTALLATIONS USING MASONRY CHIMNEYS MUST BE
SIZED IN ACCORDANCE WITH THE APPROPRIATE VENTING TABLES . I F AN
80%
FURNACE IS COMMON VENTED WITH A DRAFT HOOD EQUIPPED
APPLIANCE , THE POTENTIAL FOR CONDENSATION DAMAGE MAY STILL
EXIST WITH EXTREMELY COLD CONDITIONS , LONG VENT CONNECTORS ,
EXTERIOR CHIMNEYS , OR ANY COMBINATION OF THESE CONDITIONS .
T
HE RISK OF CONDENSATION DAMAGE IS BEST AVOIDED BY USING
MASONRY CHIMNEY AS A PATHWAY FOR PROPERLY SIZED METAL LINER
OR T YPE B METAL VENT .
WARNING
Wash
Clay Tile Size: 8" x 8" x12"
(Each x 24" Length)
1/2" to 1"Air Space
Second Floor
First Floor
Attic Floor
Roof Line
Throat
Damper
Breech
Clean Out Fan Assisted
Forced Air
Furnace
Natural Draft
Water Heater
Water Heater
Vent Connector
Basement Floor
F.A.F. Vent
Connector
Typical Multiple Flue Clay Tile Chimney
CHECKLIST SUMMARY
This checklist serves as a summary of the items to be checked
before venting an 80+ furnace into a masonry chimney. In addi-
tion,werecommendthataqualified serviceman use thischecklist
to perform a yearly inspection of the furnace venting system.
This checklist is only a summary. For detailed information on
each of the procedures mentioned, see the paragraph referenced
witheachitem.