Goodman AKSS9/GKS9 User manual

Goodman Manufacturing Company, L.P.
5151 San Felipe, Suite 500, Houston, TX 77056
www.goodmanmfg.com
©2006-2008, 2010-2013 Goodman Manufacturing Company, L.P.
INSTALLATION INSTRUCTIONS
AKSS9/GKS9
G
AS -F IRED W ARM A IR F URNACE
*NOTE: Please contact your distributor or our website for the applicable Specification Sheet referred to in this manual.
ATTENTION INSTALLING PERSONNEL
As a professional installer you have an obligation to know the product better than the customer. This includes all safety
precautions and related items.
Prior to actual installation, thoroughly familiarize yourself with this Instruction Manual. Pay special attention to all safety
warnings. 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.
Safety is a matter of common sense...a matter of thinking before 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.
(Type FSP CATEGORY IV Direct or Non Direct Vent Air Furnace)
RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION.
Installer: Affix all manuals adjacent to the unit.
These furnaces comply with requirements
embodiedintheAmericanNationalStandard
/ National Standard of Canada ANSI
Z21.47·CSA-2.3GasFiredCentral Furnaces.
This furnace is shipped from the factory as a Dedicated Upflow.
A Blocked Drain Kit (part #0270K00012) is available and MUST BE USED
if the furnace is installed Horizontal Left or Horizontal Right.
IO-300O
05/2013

2
Table of Contents
I. Component Identification ............................................................................................................................................... 5
II. Safety considerations ..................................................................................................................................................... 5
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS ................................................................................................................... 6
III. ProductApplication ....................................................................................................................................................... 6
IV. Location Requirements & Considerations .................................................................................................................. 7
GENERAL ......................................................................................................................................................................... 7
CLEARANCES AND ACCESSIBILITY ........................................................................................................................................... 8
FURNACE SUSPENSION ........................................................................................................................................................ 8
EXISTING FURNACE REMOVAL ............................................................................................................................................... 8
THERMOSTAT LOCATION....................................................................................................................................................... 8
V. Combustion & Ventilation Air Requirements ................................................................................................................ 9
VI. Installation Positions ................................................................................................................................................... 11
VII. HorizontalApplications & Considerations ................................................................................................................ 11
GENERAL ....................................................................................................................................................................... 11
DRAIN TRAP AND LINES .................................................................................................................................................... 11
LEVELING ....................................................................................................................................................................... 11
ALTERNATE VENT/FLUE CONNECTION ................................................................................................................................... 11
ALTERNATE ELECTRICAL AND GAS LINE CONNECTIONS ............................................................................................................ 12
DRAIN PAN ..................................................................................................................................................................... 12
FREEZE PROTECTION ........................................................................................................................................................ 12
FURNACE SUSPENSION ...................................................................................................................................................... 12
VIII. Propane Gas /High Altitude Installations ................................................................................................................ 12
IX. Vent/Flue Pipe & CombustionAir Pipe....................................................................................................................... 12
GENERAL ....................................................................................................................................................................... 12
DUAL CERTIFICATION: NON-DIRECT/DIRECT VENT .................................................................................................................. 13
MATERIALS AND JOINING METHODS ...................................................................................................................................... 13
PROPER VENT/FLUE AND COMBUSTION AIR PIPING PRACTICES ................................................................................................. 13
TERMINATION LOCATIONS ................................................................................................................................................... 13
CANADIAN VENTING REQUIREMENTS ..................................................................................................................................... 14
STANDARD FURNACE CONNECTIONS ..................................................................................................................................... 14
ALTERNATE FURNACE CONNECTIONS .................................................................................................................................... 14
NON-DIRECT VENT (SINGLE PIPE) PIPING ............................................................................................................................ 15
DIRECT VENT (DUAL PIPE) PIPING ...................................................................................................................................... 16
VENT/INTAKE TERMINATIONS FOR INSTALLATION OF MULTIPLE DIRECT VENT FURNACES .................................................................. 19
CONCENTRIC VENT TERMINATION ......................................................................................................................................... 20
SIDE WALL VENT KIT ...................................................................................................................................................... 20
X. Condensate Drain Lines & Drain Trap ........................................................................................................................ 20
GENERAL ....................................................................................................................................................................... 20
UPRIGHT INSTALLATIONS .................................................................................................................................................... 20
HORIZONTAL INSTALLATIONS ............................................................................................................................................... 21
XI. Electrical Connections ................................................................................................................................................ 22
WIRING HARNESS ............................................................................................................................................................ 22
115 VOLT LINE CONNECTIONS ........................................................................................................................................... 22
24 VOLT THERMOSTAT WIRING........................................................................................................................................... 23
24 VOLT HUMIDIFIER ........................................................................................................................................................ 23
XII. Gas Supply and Piping............................................................................................................................................... 23
GENERAL ....................................................................................................................................................................... 23
GAS PIPING CONNECTIONS ................................................................................................................................................ 24
PROPANE GAS TANKS AND PIPING ...................................................................................................................................... 25
XIII. Circulating Air & Filters ............................................................................................................................................. 26
DUCTWORK - AIR FLOW ................................................................................................................................................... 26
CHECKING DUCT STATIC .................................................................................................................................................... 26
BOTTOM RETURN AIR OPENING [UPFLOW MODELS]............................................................................................................... 27
FILTERS - READ THIS SECTION BEFORE INSTALLING THE RETURN AIR DUCTWORK ....................................................................... 27
UPRIGHT INSTALLATIONS .................................................................................................................................................... 28
HORIZONTAL INSTALLATIONS ............................................................................................................................................... 28
XIV. Startup Procedure & Adjustment ............................................................................................................................. 28
HEAT ANTICIPATOR SETTING ............................................................................................................................................... 28

3
Table of Contents
G OODMAN WILL NOT BE RESPONSIBLE FOR ANY INJURY OR
PROPERTY 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 .
WARNING
DRAIN TRAP PRIMING ....................................................................................................................................................... 28
FURNACE OPERATION ........................................................................................................................................................ 28
GAS SUPPLY PRESSURE MEASUREMENT ............................................................................................................................... 28
GAS MANIFOLD PRESSURE MEASUREMENT AND ADJUSTMENT ................................................................................................... 29
GAS INPUT RATE MEASUREMENT (NATURAL GAS ONLY) ......................................................................................................... 30
TEMPERATURE RISE .......................................................................................................................................................... 30
CIRCULATOR BLOWER SPEEDS ........................................................................................................................................... 30
XV. Normal Sequence of Operation ................................................................................................................................. 31
POWER UP.................................................................................................................................................................... 31
HEATING MODE ................................................................................................................................................................ 31
COOLING MODE ............................................................................................................................................................... 31
FAN ONLY MODE ............................................................................................................................................................. 31
XVI. Operational Checks .................................................................................................................................................. 31
BURNER FLAME ............................................................................................................................................................... 31
XVII. Safety Circuit Description ....................................................................................................................................... 32
GENERAL ....................................................................................................................................................................... 32
INTEGRATED CONTROL MODULE........................................................................................................................................... 32
PRIMARY LIMIT ................................................................................................................................................................ 32
AUXILIARY LIMIT .............................................................................................................................................................. 32
ROLLOUT LIMIT ............................................................................................................................................................... 32
PRESSURE SWITCHES ....................................................................................................................................................... 32
FLAME SENSOR ............................................................................................................................................................... 32
XVIII. Troubleshooting ...................................................................................................................................................... 32
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS ................................................................................................................. 32
DIAGNOSTIC CHART .......................................................................................................................................................... 32
RESETTING FROM LOCKOUT ............................................................................................................................................... 33
XIX. Maintenance .............................................................................................................................................................. 33
ANNUAL INSPECTION ......................................................................................................................................................... 33
FILTERS ......................................................................................................................................................................... 33
BURNERS ....................................................................................................................................................................... 33
INDUCED DRAFT AND CIRCULATOR BLOWERS ......................................................................................................................... 33
CONDENSATE TRAP AND DRAIN SYSTEM (QUALIFIED SERVICER ONLY) ....................................................................................... 33
FLAME SENSOR (QUALIFIED SERVICER ONLY) ....................................................................................................................... 33
IGNITER (QUALIFIED SERVICER ONLY)................................................................................................................................... 33
FLUE PASSAGES (QUALIFIED SERVICER ONLY) ...................................................................................................................... 33
XX. Before Leaving an Installation................................................................................................................................... 34
XXI. Repair & Replacement Parts .................................................................................................................................... 34
TROUBLESHOOTING CHART ................................................................................................................................................. 36
BLOWER PERFORMANCE DATA ............................................................................................................................................ 37
AKSS9/GKS9 Wiring Diagram.......................................................................................................................................... 39
SPECIAL INSTRUCTIONS FOR PRODUCTS IN THE STATE OF MASSACHUSETTS ................................................................................. 40

4
TRANSPORTATION DAMAGE
Allunitsaresecurelypackedinshippingcontainerstestedaccording
to International Safe Transit Association specifications. The carton
mustbecheckeduponarrivalfor externaldamage. Ifdamage isfound,
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
boltsorscrewswhichmayhavecomelooseintransit. Intheeventof
damagetheconsigneeshould:
1. Make a notation on delivery receipt of any visible damage to
shipmentorcontainer.
2. Notify carrierpromptlyandrequestaninspection.
3. With concealed damage, carrier must be notified as soon as
possible- preferablywithinfivedays.
4. File the claim with the following support documents within a
ninemonthstatuteoflimitations.
•Original or certified copy of the Bill of Lading, or indemnity
bond.
•Originalpaidfreightbillorindemnityin lieu thereof.
•Original or certified copy of the invoice, showing trade and
otherdiscountsorreductions.
•Copy of the inspection report issued by carrier’s
representativeatthetimedamageisreportedtocarrier.
The carrier is responsible for making prompt inspection of damage
andfora thoroughinvestigationofeachclaim.Thedistributorormanu-
facturer will not accept claims from dealers for transportation dam-
age.
Keep this literature in a safe place for future refer-
ence.
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 .
- WHAT TO DO IF YOU SMELL GAS:
* 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
NEIGHBORS PHONE . F OLLOW THE GAS SUPPLIERS
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
WARNING
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
CARBON MONOXIDE POISONING HAZARD
-
Special Warning for Installation of Furnace or Air Handling Units in
Enclosed Areas such as Garages, Utility Rooms or Parking Areas
Carbon monoxide producing devices (such as an automobile, space
heater, gas water heater, etc.) should not be operated in enclosed areas
such as unventilated garages, utility rooms or parking areas because of
the danger of carbon monoxide (CO) poisoning resulting from the exhaust
emissions. If a furnace or air handler is installed in an enclosed area such
as a garage, utility room or parking area and a carbon monoxide producing
device is operated therein, there must be adequate, direct outside
ventilation.
This ventilation is necessary to avoid the danger of CO poisoning which
can occur if a carbon monoxide producing device continues to operate in
the enclosed area. Carbon monoxide emissions can be (re)circulated
throughout the structure if the furnace or air handler is operating in any
mode.
CO can cause serious illness including permanent brain damage or death.
B10259-216
TOTHE INSTALLER
Beforeinstallingthisunit,please read this manualthoroughlytofamil-
iarizeyourselfwithspecificitemswhich must be adheredto,including
but not limited to: unit maximum external static pressure, gas pres-
sures, BTU input rating, proper electrical connections, circulating air
temperaturerise,minimumormaximumCFM,andmotorspeedcon-
nections.

5
24 AuxiliaryLimit
25 GasManifold
26 JunctionBox
27 CoilFrontCover
28 DrainTrap
29 ElectricalConnectionInlets
II. SAFETY CONSIDERATIONS
Adheretothefollowingwarnings and cautionswheninstalling,adjust-
ing, altering, servicing, or operating the furnace. To ensure proper
installation and operation, thoroughly read this manual for specifics
pertainingtotheinstallationandapplicationof this product.
This furnace is manufactured for use with natural gas. It may be field
convertedtooperateonL.P.gasby using theappropriateL.P.conver-
sion kit listed in the PROPANE GAS/HIGH ALTITUDE INSTALLA-
TIONS section of this manual
Install this furnace only in a location and position as specified in LO-
CATION REQUIREMENTS & CONSIDERATIONS section and IN-
STALLATION POSITIONS section of this manual.
Provide adequate combustion and ventilation air to the furnace as
specifiedinCOMBUSTION & VENTILATIONAIR REQUIREMENTS
section of this manual.
Combustion products must be discharged to the outdoors. Connect
this furnace to an approved vent system only, as specified in VENT/
FLUE PIPE & COMBUSTION AIR PIPE section of this manual.
Nevertestforgas leakswithanopenflame. Use acommerciallyavail-
ablesoapsolutionmade specificallyforthedetectionof leakstocheck
allconnections,asspecifiedin GAS SUPPLYAND PIPING sectionof
thismanual.
Alwaysinstallafurnacetooperatewithinthefurnace’sintendedtem-
perature-riserangewithaductsystem which hasexternalstaticpres-
surewithinthe allowablerange,asspecifiedonthefurnace ratingplate
and OPERATIONAL CHECKS section of these instructions.
Whenafurnaceisinstalled so that supplyductscarryaircirculatedby
the furnace to areas outside the space containing the furnace, the
returnairshallalso be handledbyduct(s)sealedto thefurnacecasing
andterminatingoutsidethespacecontainingthefurnace.
A gas-fired furnace for installation in a residential garage must be in-
stalledasspecifiedintheLOCATION REQUIREMENTS AND CON-
SIDERATIONS section of this manual.
Thisfurnacemaybeusedasaconstructionsiteheateronlyifcertain
conditions are met. These conditions are listed in the PRODUCT
APPLICATION section ofthismanual.
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 ,
SERVICE AGENCY OR THE GAS SUPPLIER .
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 .
HIGH VOLTAGE!
T
O AVOID PROPERTY DAMAGE , PERSONAL INJURY OR
DEATH DUE TO ELECTRICAL SHOCK , THE FURNACE MUST
BE LOCATED TO PROTECT THE ELECTRICAL
COMPONENTS FROM WATER .
WARNING
I. COMPONENT IDENTIFICATION
8
7
6
5
4
3
2
1
27
26
17
18
24
23 22
21
20
19
18
17
16
15
13 14
12
10
11
9
29
25
28
6
Upflow/Horizontal
1 GasValve
2 GasLineEntrance(Alternate)
3 CombustionAirIntakeConnection / “Coupling”
4 HotSurfaceIgniter
5 Burners
6 RolloutLimit
7 FlameSensor
8 FluePipeConnection/“Coupling”
9 FluePipe(Internal)
10 PrimaryLimit
11 Pressure Switch
12 GasLineEntrance
13 RubberElbow
14 FluePipeConnection(Alternate)
15 InducedDraftBlower
16 ElectricalConnectionInlets(Alternate)
17 CoilFrontCoverDrainPort
18 DrainLinePenetrations
19 BlowerDoorInterlockSwitch
20 24-VoltThermostatConnections
21 IntegratedControlModule
(withfuseanddiagnostic LED)
22 Transformer(40VA)
23 CirculatorBlower

6
• It must not be used as a “make-up” air unit.
• It must be installed with two-pipe systems for combustion
air, especially if VOC’s or other contaminants are present
in the conditioned space.
• All other warranty exclusions and restrictions apply This
furnace is an ETL dual-certified appliance and is
appropriate for use with natural or propane gas (NOTE: If
using propane, a propane conversion kit is required).
Dual certification means that the combustion air inlet pipe is op-
tional and the furnace can be vented as a:
Non-direct vent (single pipe) central forced air furnace in
which combustion air is taken from the installation area
or from air ducted from the outside or,
Direct vent (dual pipe) central forced air furnace in which
all combustion air supplied directly to the furnace burners
through a special air intake system outlined in these
instructions.
This furnace may be used as a construction site heater ONLY 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
jumpers that provide continuous heating CANNOT be
used.
• Return air ducts are provided and sealed to the furnace.
• A return air temperature range between 60ºF (16ºC) and
80ºF (27ºC) is maintained.
• Air filters are installed in the system and maintained
during construction, replaced as appropriate during
construction, and upon completion of construction are
replaced.
• Theinput rate and temperature rise are set perthefurnace
rating plate.
• 100% outside air is provided for combustion air
requirements during construction. Temporary ducting can
be used.
NOTE: Do not connect the temporary duct directly to the
furnace. The duct must be sized according to the
instructions under Section V, Combustion and Ventilation
AirRequirements,Section5.3.3.
•Thefurnaceheatexchanger, components,ductsystem,air
filtersandevaporatorcoilsarethoroughly cleaned following
finalconstructioncleanup.
• Allfurnaceoperatingconditions(includingignition, inputrate,
temperatureriseand venting)areverifiedaccordingtothese
installationinstructions.
NOTE: The Commonwealth of Massachusetts requires that the
followingadditionalrequirementsmustalsobemet:
• Gas furnaces must be installed by a licensed plumber or
gasfitter.
• AT-handle gas cock must be used.
• Iftheunitis tobeinstalledinanattic, thepassagewaytoand
theserviceareaaroundtheunitmusthaveflooring.
Toensureproperinstallationandoperation,thoroughlyreadthismanual
forspecificspertainingtotheinstallationand application of this prod-
uct.
D O NOT UTILIZE THE HEATING UNIT WITHOUT REASONABLE ROUTINE
INSPECTION , MAINTENANCE AND SUPERVISION . I F THE UNIT IS IN A
BUILDING THAT IS OR WILL BE VACANT , CARE SHOULD BE TAKEN TO
ROUTINELY INSPECT , MAINTAIN AND MONITOR THE UNIT . I N THE
EVENT THAT THE BUILDING MAY BE EXPOSED TO FREEZING
TEMPERATURES AND WILL BE VACANT , DRAIN ALL WATER - BEARING
PIPES , PROPERLY WINTERIZE THE BUILDING , AND TURN OFF ALL
WATER SOURCES . I N THE EVENT THAT THE BUILDING IS EXPOSED TO
FREEZING TEMPERATURES AND IS VACANT , ANY HYDRONIC COIL
UNITS SHOULD ALSO BE DRAINED AND AN ALTERNATIVE HEAT
SOURCES UTILIZED .
WARNING
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS
NOTE: Discharge static electricity accumulated in the body before
touching the unit. An electrostatic discharge can adversely affect
electrical components.
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 electro-
static potential, these steps will help avoid exposing the integrated
control module to electrostatic discharge. This procedure is appli-
cable to both installed and non-installed (ungrounded) furnaces.
1. Disconnect all power to the furnace. Do not touch the
integratedcontrolmoduleoranywire connected to the control
prior to discharging your body’s electrostatic charge to
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
torechargeyourbodywithstaticelectricity;(i.e.,do not move
or shuffle your feet, do not touch ungrounded objects, 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
controls to their containers before touching any ungrounded
object.
III. PRODUCTAPPLICATION
Thisfurnaceisprimarilydesignedforresidentialhome-heatingappli-
cations. ItisNOTdesignedorcertifiedforuseinmobilehomes,trail-
ersorrecreationalvehicles. ThisunitisNOTdesignedorcertifiedfor
outdoorapplications. Thefurnacemust be installed indoors(i.e.,attic
space, crawl space, or garage area provided the garage area is en-
closedwithanoperatingdoor).
This furnace can be used in the following non-industrial commercial
applications:
Schools, Office buildings, Churches, Retail stores
Nursinghomes,Hotels/motels, Common orofficeareas
Insuchapplications , the furnace must be installed with the following
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.
• It must be part of a ducted system and not used in a free
air delivery application.

7
system from furnace to termination can be accomplished
withintheguidelinesgiven. NOTE: The length of flue and/
orcombustionairpipingcanbealimitingfactorinthelocation
ofthefurnace.
• Locate the furnace so condensate flows downwards to the
drain. Donotlocatethefurnaceoritscondensatedrainage
system in any area subject to below freezing temperatures
without proper freeze protection. Refer to Section X,
CondensateDrainLinesandTrapforfurtherdetails.
• Ensureadequatecombustionair isavailableforthefurnace.
Improperorinsufficientcombustionaircanexposebuilding
occupants to gas combustion products that could include
carbon monoxide. Refer to Section V, Combustion and
VentilationAirRequirements.
• Setthefurnaceona level floortoenablepropercondensate
drainage. If the floor becomes wet or damp at times, place
the furnace above the floor on a concrete base sized
approximately 1-1/2" larger than the base of the furnace.
Refer to the Section VII, Horizontal Applications and
Considerationsforlevelingofhorizontalfurnaces.
• Ensureupfloworhorizontalfurnacesarenotinstalleddirectly
on carpeting, or any other combustible material. The only
combustiblematerialallowediswood.
• Exposuretocontaminated combustionairwillresult insafety
andperformance-relatedproblems. Donotinstallthefurnace
where the combustion air is exposed to the following
substances:
chlorinatedwaxesorcleaners
chlorine-basedswimmingpool chemicals
watersofteningchemicals
deicing salts or chemicals
carbontetrachloride
halogentyperefrigerants
cleaningsolutions(suchasperchloroethylene)
printinginks
paintremovers
varnishes
hydrochloricacid
cements and glues
antistaticfabric softeners for clothes dryers
andmasonryacidwashing materials
• Seal off a non-direct vent furnace if it is installed near an
area frequently contaminated by any of the above
substances. This protects the non-direct vent furnace
from airborne contaminants. To ensure that the
enclosed non-direct vent furnace has an adequate supply
of combustion air, vent from a nearby uncontaminated
room or from outdoors. Refer to the Section V,
CombustionandVentilationAir Requirementsfordetails.
• Ifthefurnaceis used inconnectionwithacooling unit, install
the furnace upstream or in parallel with the cooling unit.
Premature heat exchanger failure will result if the cooling
unitisplacedaheadofthefurnace.
Forvertical(upflowordownflow)applications, the minimum
coolingcoilwidthshallnotbeless than furnace width minus
1”. Additionally, a coil installed above an upflow furnace or
under a counterflow furnace may be the same width as the
furnaceormaybeonesizelargerthanthefurnace. Example:
a“C”widthcoilmaybeinstalledwith a “B” width furnace.
Forupflowapplications, thefrontofthecoilandfurnace must
facethesame direction.
• Ifthefurnaceisinstalled in a residentialgarage,positionthe
furnace so that the burners and ignition source are located
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 , PROPERTY DAMAGE OR DEATH DUE
TO FIRE , DO NOT INSTALL THIS FURNACE IN A MOBILE HOME ,
TRAILER OR RECREATIONAL VEHICLE .
WARNING
To ensure proper furnace operation, install, operateandmaintainthe
furnace in accordance with these installation and operation instruc-
tions,alllocalbuildingcodes and ordinances. In theirabsence,follow
thelatesteditionofthe National Fuel Gas CodeANSIZ223.1, and/or
CAN/CSAB149.1-05InstallationCodes,localplumbingor waste wa-
tercodes,andotherapplicablecodes.
Acopy of the National Fuel Gas Code ANSI Z223.1 can be obtained
from any of the following:
American National Standards Institute
1430 Broadway
New York, NY 10018
National Fire Protection Association
1 Batterymarch Park
Quincy, MA 02269
CSA International
8501 East Pleasant Valley
Cleveland, OH 44131
A copy of the CAN/CSA B149.1-05 Installation Codes can also be
obtained from:
CSA International
178 Rexdale Boulevard
Etobicoke, Ontario, Canada M9W 1R3
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 accor-
dance with “ASHRAE Guide” or “Manual J-Load Calculations” pub-
lished by the Air Conditioning Contractors of America.
IV.LOCATIONREQUIREMENTS &CONSIDERATIONS
GENERAL
T O PREVENT POSSIBLE EQUIPMENT DAMAGE , PROPERTY DAMAGE ,
PERSONAL INJURY OR DEATH , THE FOLLOWING BULLET POINTS MUST
BE OBSERVED WHEN INSTALLING THE UNIT .
WARNING
Followtheinstructionslistedbelow when selecting afurnacelocation.
Refer also to the guidelines provided in Section V, Combustion and
VentilationAirRequirements.
• Centrallylocatethefurnacewithrespecttotheproposedor
existingairdistributionsystem.
• Ensurethetemperatureof thereturnairentering thefurnace
isbetween55°Fand100°Fwhenthefurnaceisheating.
• Provideprovisionsforventingcombustionproducts outdoors
through a proper venting system. Special consideration
shouldbegiventovent/fluepipe routing and combustionair
intakepipewhenapplicable. RefertoSection IX, Vent/Flue
Pipe and Combustion Air Pipe -Termination Locations for
appropriateterminationlocationsandtodetermineifthepiping

8
EXISTING FURNACE REMOVAL
NOTE: When an existing furnace is removed from a venting system
servingotherappliances,theventingsystemmaybe toolargetoprop-
erlyventtheremainingattachedappliances.
The following vent testing procedure is reproduced from theAmerican Na-
tionalStandard/NationalStandardofCanada forGas-FiredCentralFur-
naces ANSI Z21.47·CSA-2.3 Section 1.23.1.
The following steps shall be followed with each appliance connected to the
venting system placed in operation, while any other appliances con-
nected to the venting system are not in operation:
a. Seal any unused openings in the venting system;
b. Inspect the venting system for proper size and horizontal pitch, as
required by the National Fuel Gas Code,ANSI Z223.1 or the CSA
B149.1-05 Installation Codes and these instructions. Determine that
there is no blockage or restriction, leakage, corrosion and other defi-
ciencies 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) connected to the
venting system are located and other spaces of the building. Turn on
clothes dryers and any appliance not connected to the venting sys-
tem. 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. Follow the lighting instructions. Place the appliance being inspected
in operation. Adjust thermostat so appliance shall operate continu-
ously;
e. Test for draft hood equipped spillage at the draft hood relief opening
after 5 minutes of main burner operation. Use the flame of a match
orcandle;
f. After it has been determined that each appliance connected to the
venting system properly vents when tested as outlined above, re-
turn doors, 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, the
common venting system must be corrected.
Corrections must be in accordance with the latest edition of the Na-
tionalFuelGasCodeANSI Z223.1and/orCSAB149.1-05 Installation
Codes.
If resizing is required on any portion of the venting system, use the
appropriate table in Appendix G in the latest edition of the National
Fuel Gas Code ANSI Z223.1 and/or CSA B149.1-05 Installation
Codes.
THERMOSTATLOCATION
The thermostat should be placed approximately five feet from the
floor on a vibration-free, inside wall in an area having good air
circulation. Do not install the thermostat where it may be influ-
enced by any of the following:
•Drafts, or dead spots behind doors, in corners, or under
cabinets.
•Hot or cold air from registers.
•Radiantheatfromthesun.
•Lightfixturesorotherappliances.
•Radiantheatfromafireplace.
•Concealedhot or cold water pipes, orchimneys.
•Unconditioned areas behind the thermostat, such as an
outside wall.
not less than 18 inches (457 mm) above the floor. Protect
thefurnacefromphysicaldamagebyvehicles.
• If the furnace is installed horizontally, the furnace access
doors must be vertical so that the burners fire horizontally
into the heat exchanger. Do not install the unit with the
access doors on the “up/top” or “down/bottom” side of
the furnace.
CLEARANCESAND ACCESSIBILITY
Installations must adhere to the clearances to combustible mate-
rials to which this furnace has been design certified. The mini-
mum clearance information for this furnace is provided on the unit’s
clearance label. These clearances must be permanently main-
tained. Clearances must also accommodate an installation’s gas,
electrical, and drain trap and drain line connections. If the alternate
vent/flue connections are used additional clearance must be pro-
vided to accommodate these connections. Refer to Section IX,
Vent Flue Pipe and Combustion Air Pipe for details. NOTE: In
addition to the required clearances to combustible materials, a
minimum of 24 inches service clearance must be available in front
of the unit. TOP
BOTTOM
SIDE SIDE
Upflow Horizontal
A furnace installed in a confined space (i.e., a closet or utility room)
must have two ventilation openings with a total minimum free area
of 0.25 square inches per 1,000 BTU/hr of furnace input rating.
Refer to the Specification Sheet applicable to your model* for mini-
mumclearancesto combustiblesurfaces. Oneofthe ventilationopen-
ings must be within 12 inches of the top; the other opening must be
within12inchesofthebottomoftheconfined space. In a typical con-
struction, the clearance between the door and door frame is usually
adequatetosatisfythisventilationrequirement.
FURNACE SUSPENSION
Ifsuspendingthefurnacefromraftersorjoists,use3/8"threadedrod
and 2”x2”x1/8” angle iron as shown below. The length of rod will de-
pendontheapplicationandtheclearancesnecessary.
TILT OUTWARD TO ALLOW FOR
DOOR AND CIRCULATOR BLOWER
REMOVAL
3/8" DIAMETER
THREADED ROD
(6 PLACES)
PROVIDE 8" MINMUM CLEARANCE BETWEEN
CENTER ROD AND FURNACE CABINET
TO ALLOW FOR CIRCULATOR BLOWER REMOVAL
ASSURE FURNACE IS LEVEL FROM
END TO END AND HAS A SLIGHT
FORWARD TILT WITH THE FRONT
OF THE FURNACE 0"-3/4"
BELOW THE BACK OF THE FURNACE
POSITION AS CLOSE AS POSSIBLE
TO BLOWER DECK TO ALLOW FOR
CIRCULATOR BLOWER REMVOAL
2"X2"X1/8" ANGLE IRON
(3 PLACES)
HOLD DOWN
NUTS
SUPPORT
NUTS
Suspended Furnace

9
HOT
COLD
DRAFTS OR DEAD SPOTS
-BEHIND DOORS
-IN CORNERS
-UNDER CABINETS
Thermostat Influences
Consult the instructions packaged with the thermostat for mounting
instructionsandfurtherprecautions.
V. COMBUSTION & VENTILATION AIR REQUIREMENTS
T O AVOID PROPERTY DAMAGE , PERSONAL INJURY OR DEATH ,
SUFFICIENT FRESH AIR FOR PROPER COMBUSTION AND
V
ENTILATION
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 re-
duced heat loss by reducing air infiltration and escape around doors
andwindows. Thesechangeshavehelpedinreducingheating/cool-
ingcostsbuthavecreatedaproblemsupplyingcombustionandven-
tilationairforgasfiredandotherfuelburningappliances. Appliances
thatpullairoutofthehouse(clothesdryers,exhaustfans,fireplaces,
etc.)increasetheproblembystarvingappliancesforair.
House depressurization can cause back drafting or improper com-
bustion of gas-fired appliances, thereby exposing building occu-
pants to gas combustion products that could include carbon mon-
oxide.
1. Headaches-Nausea-Dizziness, Flu-Like Symptoms.
2. Excessive humidity-heavily frosted windows or a moist
“clammy”feelinginthehome.
3. Smoke from a fireplace will not draw up the chimney.
4. Flue gases that will not drawuptheapplianceventpipe.
Ifthisfurnaceisto be installed inthesamespacewithothergas appli-
ances,suchasawaterheater, ensure there is an adequate supply of
combustion and ventilation air for the other appliances. Refer to the
latesteditionoftheNationalFuelGasCodeANSIZ223.1(Section5.3),
or CSA B149.1-05 Installation Codes (Sections 7.2, 7.3, or 7.4), or
applicable provisions of the local building codes for determining the
combustionairrequirementsfortheappliances.
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.
The following information on air for combustion and ventilation is repro-
duced from the National Fuel Gas Code ANSI Z223.1 Section 5.3.
5.3.1 General:
(a) The provisions of 5.3 apply to gas utilization equipment installed in
buildingsandwhich require airforcombustion,ventilationand dilution
offlue gasesfrom withinthe building.They donot applyto (1)direct
vent equipment which is constructed and installed so that all air for
combustionis obtainedfromthe outsideatmosphereand allfluegases
are discharged to the outside atmosphere, or (2) enclosed furnaces
whichincorporate anintegral totalenclosure anduse onlyoutside air
forcombustion anddilution offlue gases.
(b) Equipment shall be installed in a location in which the facilities for
ventilationpermit satisfactorycombustion ofgas, properventing and
the maintenance of ambient temperature at safe limits under normal
conditions of use. Equipment shall be located so as not to interfere
with proper circulation of air.When normal infiltration does not pro-
vide the necessary air, outside air shall be introduced.
(c)In additionto airneeded forcombustion, processair shall beprovided
asrequiredfor:cooling ofequipmentormaterial,controllingdewpoint,
heating,drying, oxidationordilution,safety exhaust,odorcontrol, and
air for compressors.
(d)In additionto airneeded forcombustion, airshallbe suppliedfor ven-
tilation,including allairrequired forcomfortand properworkingcon-
ditionsfor personnel.
(e)While allformsofbuilding constructioncannotbe coveredindetail,air
forcombustion,ventilation anddilutionofflue gasesforgasutilization
equipmentvented bynaturaldraft normallymaybe obtainedbyappli-
cation of one of the methods covered in 5.3.3 and 5.3.4.
(f)Air requirementsfor theoperation ofexhaust fans,kitchenventilation
systems, clothes dryers, and fireplaces shall be considered in deter-
mining the adequacy of a space to provide combustion air require-
ments.
5.3.2 Equipment Located in Unconfined Spaces:
Inunconfined spaces(see definitionbelow) inbuildings, infiltrationmay
beadequate toprovide airfor combustionventilation anddilution offlue
gases. However, in buildings of tight construction (for example, weather
stripping,heavilyinsulated, caulked,vaporbarrier,etc.),additionalairmay
need to be provided using the methods described in 5.3.3-b or 5.3.4.
Space, Unconfined.
Forpurposes ofthis Code,a space whosevolume isnot lessthan50 cubic
feet per 1,000 BTU per hour of the aggregate input rating of all appli-
ances installed in that space. Rooms communicating directly with the
spacein whichtheappliances areinstalledthrough openingsnotfurnished
with doors, are considered a part of the unconfined space.
5.3.3 Equipment Located in Confined Spaces:
(a) All Air from Inside the Building: The confined space shall be pro-
vided with two permanent openings communicating directly with an
additionalroom(s) ofsufficient volumeso thatthe combinedvolume
of all spaces meets the criteria for an unconfined space. The total
inputof all gas utilization equipment installed inthe combinedspace
shallbe consideredin makingthis determination.Each openingshall
have a minimum free area of 1 square inch per 1,000 BTU per hour
ofthe totalinput rating ofall gasutilizationequipment inthe confined
space,but notlessthan100 squareinches.One openingshallbewithin
12 inches of the top and one within 12 inches of the bottom of the
enclosure.
Furnace Water
Heater
Opening
Chimney or Gas Vent
Opening
NOTE: Each opening must have
a free area of not less than one
square inch per 1000 BTU of
the total input rating of all equip-
ment in the enclosure, but not
less than 100 square inches.
Equipment Located in Confined Spaces; All Air from Inside Building.
See 5.3.3-a.

10
(b) All Air from Outdoors: The confined space shall be provided with
twopermanent openings,onecommencing within12inches ofthetop
andone commencingwithin 12inchesof thebottom oftheenclosure.
The openings shall communicate directly, or by ducts, with the out-
doors or spaces (crawl or attic) that freely communicate with the
outdoors.
1. When directly communicating with the outdoors, each opening
shall have a minimum free area of 1 square inch per 4,000 BTU
per hour of total input rating of all equipment in the enclosure.
Furnace
Water
Heater
Outlet Air
Chimney or Gas Vent
NOTE: The inlet and outlet air
openings must each have a free
area of not less than one square
inch per 4000 BTU of the
total input rating of all equipment
in the enclosure.
Inlet Air
Ventilation louvers for
unheated crawl space
A
lternate
air inlet
Ventilation louvers
(each end of attic)
Equipment Located in Confined Spaces; All Air from Outdoors—Inlet
Air from Ventilated Crawl Space and Outlet Air to Ventilated Attic.
See 5.3.3-b
2. When communicating with the outdoors through vertical ducts,
eachopening shallhave aminimum freearea of1square inchper
4,000 BTU per hour of total input rating of all equipment in the
enclosure.
Furnace
Water
Heater
Outlet Air
Chimney or Gas Vent
NOTE: The inlet and outlet air
openings must each have a free
area of not less than one square
inch per 4000 BTU of the
total input rating of all equipment
in the enclosure.
Inlet air duct
[ends 1 ft (300 mm)
above floor]
Ventilation louvers
(each end of attic)
Equipment Located in Confined Spaces; All Air from Outdoors
Through Ventilated Attic. See 5.3.3-b.
3.When communicatingwith theoutdoors throughhorizontalducts,
eachopening shallhave aminimum freearea of1square inchper
2,000 BTU per hour of total input rating of all equipment in the
enclosure.
Furnace Water
Heater
Chimney or Gas Vent
NOTE: The air duct openings
must have a free area of not
less than one square inch per
2000 BTU of the total input
rating of all equipment in the
enclosure*.
Outlet air duct
Inlet air duct
*If the appliance room is located against an outside wall and the air openings communicate
directly with the outdoors, each opening shall have a free area of not less than one square inch
per 4,000 BTU per hour of the total input rating of all appliances in the enclosure.
Equipment Located in Confined Spaces; All Air from Outdoors. See
5.3.3-b.
4. When ducts are used, they shall be of the same cross-sectional
area as the free area of the openings to which they connect. The
minimumdimension ofrectangular airductsshall notbe lessthan
3 inches.
Furnace
Water
Heater
Opening
Chimney or Gas Vent
NOTE: The single opening must have
a free area of not less than one
square inch per 3000 BTU of
the total input rating of all equip-
ment in the enclosure, but not less than
the sum of the areas of all vent
connectors in the confined space.
Alternate
Opening
Location
Equipment Located in Confined Spaces; All Air from Outdoors -
Single Air Opening. See 5.3.3-b.
5.When directlycommunicating withthe outdoors,the singleopen-
ing shall have a minimum free area of 1 square inch per 3,000
BTU per hour of total input rating of all equipment in the enclo-
sure.
5.3.4 Specially Engineered Installations:
Therequirements of5.3.3 shallnotnecessarily governwhen specialengi-
neering, approved by the authority having jurisdiction, provides an ad-
equatesupply ofairfor combustion,ventilation,and dilution offluegases.
5.3.5 Louvers and Grilles:
Incalculating freearea in5.3.3, considerationshall be givento theblock-
ingeffect oflouvers, grillesor screensprotecting openings.Screens used
shall not be smaller than 1/4 inch mesh. If the area through a design of
louveror grilleis known,it should beused incalculating thesizeof open-
ing required to provide the free area specified. If the design and free area
is not known, it may be assumed that wood louvers will have 20-25 per-
cent free area and metal louvers and grilles will have 60-75 percent free
area.Louvers andgrilles shallbe fixedinthe openposition orinterlocked
with the equipment so that they are opened automatically during equip-
mentoperation.