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.

11
LEVELING
Levelingensurespropercondensatedrainagefromtheheatexchanger
andinduceddraftblower. For proper flue pipe drainage, the furnace
mustbelevellengthwise fromendtoend. Thefurnace shouldalsobe
level from back to front or have a slight tilt with the access doors
downhill (approximately 3/4 inches) from the back panel. The slight
tiltallowstheheatexchangercondensate,generatedintherecuperator
coil,toflowforward to the recuperator coil front cover.
ALTERNATE VENT/FLUE CONNECTION
Inhorizontalinstallationsprovisionsfor alternate flue pipingareavail-
ableforupflowfurnaceswith left discharge. Thisconfigurationallows
the flue piping to be run vertically through the furnace. Refer to the
“Recommended Installation Positions” figure for further detail. The
standard piping connections may also be used in these positions.
Refer to Section IX, Vent/Flue Pipe and CombustionAir Pipe for de-
tailsconcerningtheconversion to thealternatevent/flueconnections.
Whenusingthehorizontalalternateventconfiguration, you must use
theRF000142ventdrainkit.See following illustration.
5.3.6 Special Conditions Created by Mechanical Exhausting or Fire-
places:
Operation of exhaust fans, ventilation systems, clothes dryers, or fire-
placesmay createconditions requiringspecial attentionto avoidunsatis-
factory operation of installed gas utilization equipment. Air from Inside
Building.See 5.3.3-a.
VI. INSTALLATION POSITIONS
NOTE:Thisfurnaceisshipped fromthefactory asaDedicated Upflow.
A“BlockedDrain Kit”(0270K00012)isavailableand MUST BEUSED
ifthefurnaceisinstalledHorizontalLeftorHorizontalRight.
This furnace may be installed in an upright position or horizontal on
either the left or right side panel. Do not install this furnace on its
back. For upright upflow furnaces, return air ductwork may be at-
tached to the side panel(s) and/or basepan. For horizontal upflow
furnaces,returnairductworkmustbeattachedtothebasepan. NOTE:
Ductworkmustneverbeattached to the backofthefurnace. Contact
yourdistributorfor properairflowrequirements andnumberofrequired
ductwork connections. Refer to “Recommended Installation Posi-
tions” figure for appropriate installation positions, ductwork connec-
tions,andresultingairflowarrangements.
VII. HORIZONTALAPPLICATIONS & CONSIDERATIONS
NOTE:Thisfurnaceisshipped fromthefactory asaDedicated Upflow.
A“BlockedDrainKit”isavailableandMUST BE USED if the furnace
isinstalledHorizontalLeftorHorizontal Right.ChecktheSerial/Rating
Plateonthefurnacefor the Kit P/N.
GENERAL
Horizontal applications, in particular, may dictate many of the
installation’s specifics such as airflow direction, ductwork connec-
tions,flueandcombustionairpipeconnections, etc. The basic appli-
cationofthisfurnaceasahorizontalfurnacediffersonlyslightlyfrom
an upright installation. When installing a furnace horizontally, addi-
tionalconsiderationmustbegiventothefollowing:
ALTERNATE VENT/FLUE
LOCATION
FURNACE MUST BE LEVEL
FROM END TO END
FURNACE MUST BE LEVEL
OR SLIGHTLY TILTED FORWARD
WITH THE DOORS 0" - 3/4"
BELOW THE BACK PANEL
DRAIN LINE WITH 1/4" PER FOOT
DOWNWARD SLOPE
36" MINIMUM SERVICE
CLEARANCE REQUIRED
FURNACE MUST BE SUPPORTED
AT BOTH ENDS AND MIDDLE
DRAIN PAN
GAS LINE WITH
DRIP LEG (3" MINIMUM)
4 3/4" MINIMUM
DRAIN TRAP
CLEARANCE
Horizontal Furnace
DRAIN TRAP AND LINES
Inhorizontalapplicationsthecondensatedraintrapissecuredtothe
furnacesidepanel,suspendingit belowthefurnace. Aminimumclear-
anceof43/4inchesbelowthe furnace must be providedforthedrain
trap. Additionally,theappropriatedownwardpipingslopemustbemain-
tained from the drain trap to the drain location. Refer to Section X,
Condensate Drain Trap and Lines for further details. If the drain trap
anddrainlinewill be exposedtotemperaturesnearor below freezing,
adequatemeasuresmustbe taken topreventcondensatefromfreez-
ing.

12
RecommendedInstallationPositions
NOTE:Alternate “vertical” piping connections can not be used when
anupflowfurnace is installed with supply air discharging to the right.
In either case, use the standard flue and combustion air piping
connections.
ALTERNATE ELECTRICAL AND GAS LINE CONNECTIONS
This furnace has provisions allowing for electrical and gas line con-
nectionsthrougheitherside panel. In horizontalapplicationsthecon-
nections can be made either through the “top” or “bottom” of the fur-
nace.
DRAIN PAN
Adrainpanmustbe provided ifthefurnaceisinstalledabove a condi-
tioned area. The drain pan must cover the entire area under the fur-
nace(andairconditioningcoilifapplicable).
FREEZE PROTECTION
Refer to Section VII, HorizontalApplications and Conditions - Drain
Trap and Lines.
FURNACE SUSPENSION
Ifthefurnaceis installed in a crawl space it must be suspended from
the floor joist or supported by a concrete pad. Never install the fur-
nace on the ground or allow it to be exposed to water. Refer to Sec-
tion IV, Location Requirements and Considerations - Furnace Sus-
pensionforfurtherdetails.
VIII. PROPANE GAS /HIGH ALTITUDE INSTALLATIONS
P OSSIBLE PROPERTY DAMAGE , PERSONAL INJURY OR DEATH MAY
OCCUR IF THE CORRECT CONVERSION KITS ARE NOT INSTALLED . T HE
APPROPRIATE KITS MUST BE APPLIED TO ENSURE SAFE AND PROPER
FURNACE OPERATION . A LL CONVERSIONS MUST BE PERFORMED BY
A QUALIFIED INSTALLER OR SERVICE AGENCY .
WARNING
Thisfurnaceisshippedfromthefactoryconfiguredfornaturalgasat
standardaltitude. Propanegasinstallations require anorificechange
tocompensatefortheenergy content differencebetweennaturaland
propanegas.
Forfurnaces being converted to LP gas,itis strongly recommended
that a LPLP03 kit also be installed. The use of this kit will prevent
the furnace from firing when the LP gas supply pressure is too low
to support proper combustion.
High altitude installations may require both a pressure switch and
an orifice change. These changes are necessary to compensate
for the natural reduction in the density of both the gas fuel and the
combustion air at higher altitude.
For installations above 7000 feet, please refer to your distributor
for required kit(s).
Altitude Gas Kit Orifice Manifold
Pressure Pressure Switch
2Supports both Honeywell and White-Rodgers 1-stage valves
NOTE: In Canada, gas furnaces are certified to 4500 feet.
0-7000
Natural None #43 3.5" w.c.
None
Propane LPT-03*2#55 10.0" w.c.
Contactthedistributorfora tabularlistingofappropriatemanufacturer’s
kits for propane gas and/or high altitude installations. The indicated
kits must be used to insure safe and proper furnace operation. All
conversions must be performed by a qualified installer, or service
agency.
IX. VENT/FLUE PIPE & COMBUSTION AIR PIPE
GENERAL
F AILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN BODILY
INJURY OR DEATH . C AREFULLY READ AND FOLLOW ALL
INSTRUCTIONS GIVEN IN THIS SECTION .
WARNING
U PON COMPLETION OF THE FURNACE INSTALLATION , CAREFULLY
INSPECT THE ENTIRE FLUE SYSTEM BOTH INSIDE AND OUTSIDE OF
THE FURNACE TO ASSURE IT IS PROPERLY SEALED . L EAKS IN THE
FLUE SYSTEM CAN RESULT IN SERIOUS PERSONAL INJURY OR DEATH
DUE TO EXPOSURE TO FLUE PRODUCTS , INCLUDING CARBON
MONOXIDE .
WARNING

13
A condensing gas furnace achieves its high level of efficiency by ex-
tracting almost all of the heat from the products of combustion and
coolingthem to the point where condensationtakesplace. Because
oftherelativelylowfluegastemperatureandwatercondensationre-
quirements,PVCpipeisusedasventingmaterial.
This furnace must not be connected to Type B, BW, or Lvent or vent
connector,and must not beventedintoanyportionofa factory built or
masonry chimney except when used as a pathway for PVC as de-
scribed later in this section. Never common vent this appliance with
another appliance or use a vent which is used by a solid fuel appli-
ance. Do not use commercially available “no hub connectors” other
thanthoseshippedwiththisproduct.
Itisthe responsibility of the installer to follow the manufacturers’ rec-
ommendations and to verify that all vent/flue piping and connectors
are compatible with furnace flue products. Additionally, it is the re-
sponsibility of the installer to ensure that all piping and connections
possessadequatestructuralintegrityandsupport to prevent flue pipe
separation,shifting,orsaggingduringfurnace operation.
DUAL CERTIFICATION: NON-DIRECT/DIRECT VENT
Thisfurnaceisdualcertified and maybeinstalledasanon-directvent
(single pipe) or direct vent (dual pipe) appliance. A non-direct vent
installation requires only a vent/flue pipe, while a direct vent installa-
tion requires both a vent/flue pipe and a combustion air intake pipe.
Refer to the appropriate section for details concerning piping size,
length,numberofelbows,furnaceconnections,andterminations.
MATERIALS AND JOINING METHODS
WARNING
TO AVOID BODILY INJURY, FIRE OR EXPLOSION, SOLVENT CEMENTS MUST BE
KEPT AWAY FROM ALL IGNITION SOURCES (I.E., SPARKS, OPEN FLAMES, AND
EXCESSIVE HEAT) AS THEY ARE COMBUSTIBLE LIQUIDS. AVOID BREATHING
CEMENT VAPORS OR CONTACT WITH SKIN AND/OR EYES.
Two-three-inch nominal diameter PVC Schedule 40 pipe meeting
ASTMD1785,PVCprimermeetingASTMF656,andPVCsolvent ce-
mentmeetingASTMD2564specificationsmustbeused. Fittingsmust
beDWVtypefittingsmeetingASTM D2665 andASTM D3311. Care-
fully follow the manufacturer’s instructions for cutting, cleaning, and
solventcementingofPVC.
TheuseofSchedule40PVCorABS cellular core (Foam Core) plas-
ticpipeisalso acceptable asaflue/ventandintake pipematerial.PVC
primermeetingASTMF656andPVCsolventcementmeetingASTM
D2564 specifications must be used. Fittings must be DWV type fit-
tingsmeetingASTMD2665andASTMD3311.Carefullyfollowthemanu-
factures instructions for cutting, cleaning and solvent cementing of
PVC.
Inadditionto PVCandABSpipeand fittings,Innoflue®byCentrotherm
EcoSystemsandPolyPro®byM&G Duravent are also approvedvent
andcombustionairmaterialsforinstallationsinthe U.S.A.andCanada.
ManufacturersInstallationinstructionsfortheseproducts must be fol-
lowed.Theseproductshavespecificinstructionsfor installing, joining
and terminating. Do not mix materials or components of one manu-
facturerwithmaterialsor componentsofanothermanufacturer.
ForCanadianinstallations;allPVCpipe,fittingsandjoining materials
mustbeULS636listed.
As an alternative to PVC pipe, primer, solvent cement, and fittings,
ABS materials which are in compliance with the following specifica-
tionsmaybeused. Two-three-inchABSSchedule40pipemustmeet
ASTM D1527 and, if used in Canada, must be CSA listed. Solvent
cementforABStoABSjointsmustmeetASTMD2235and,ifusedin
Canada,mustbeCSAlisted. The solvent cement forthePVCtoABS
transition joint must meetASTM D3138. Fittings must be DWV type
fittingsmeetingASTMD2661andASTMD3311and,ifusedinCanada,
mustbeCSAlisted. Carefullyfollowthepipemanufacturers’instruc-
tionsforcutting,cleaning,andsolventcementingPVCand/orABS.
All90°elbowsmustbemediumradius (1/4 bend DWV) orlongradius
(Long sweep 1/4 bend DWV) types conforming toASTM D3311. A
medium radius (1/4 bend DWV) elbow measures 3 1/16” minimum
fromtheplaneof oneopeningtothecenterline oftheotheropeningfor
2”diameterpipe, and 4 9/16” minimum for 3” pipe.
PROPER VENT/FLUE AND COMBUSTION AIR PIPING PRACTICES
Adheretotheseinstructions to ensuresafeandproperfurnace perfor-
mance. The length, diameter, and number of elbows of the vent/flue
pipeandcombustionairpipe(whenapplicable)affectstheperformance
ofthefurnaceandmust be carefullysized. Allpipingmustbeinstalled
in accordance with local codes and these instructions.
Pipingmustbeadequately securedandsupportedto prohibitsagging,
jointseparation,and/ordetachmentfrom the furnace. Horizontalruns
ofvent/fluepipingmustbe supported everythreetofivefeetand must
maintain a 1/4 inch per foot downward slope, back towards the fur-
nace, to properly return condensate to the furnace’s drain system.
Allowancesshouldbemadeforminorexpansion and contraction due
to temperature variations. For this reason, particular care must be
takentosecurepipingwhenalongrunisfollowedbyashortoffsetof
less than 40 inches.
Precautions should be taken to prevent condensate from freezing
inside the vent/flue pipe and/or at the vent/flue pipe termination. It is
our recommendation that all vent/flue piping exposed to tempera-
tures below 35°F for extended periods of time should be insulated
with1/2”thickclosed cell foam.Also all vent/flue piping exposed out-
doors in excess of the terminations shown in this manual (or in un-
heated areas) should be insulated with 1/2” thick closed cell foam.
Inspectpiping for leaks prior to installinginsulation.
TERMINATION LOCATIONS
NOTES: Refer to Section IV, Location Requirements and
Considerationsforcombustionaircontaminant restrictions.
The following bullets and diagram describe the restrictions concern-
ingtheappropriatelocation ofvent/fluepipeandcombustion airintake
pipe(whenapplicable)terminations. Refer to Non-DirectVent(Single
Pipe) Piping andDirectVent(DualPipe) Piping located in this section
forspecificdetailsonterminationconstruction.
• Allterminations(flueand/orintake)mustbelocatedat least
12inchesabovegroundlevelortheanticipatedsnowlevel.
• Ventterminations (non-directanddirectvent)mustterminate
at least 3 feet above any forced air inlet located within 10
feet.
NOTE: Thisprovisiondoesnotapplytothecombustionair
intaketerminationofadirectventapplication.
• The vent termination of a non-direct vent application must
terminateatleast4feetbelow,4feethorizontallyfrom,or1
foot above any door, window, or gravity air inlet into any
building.
• The vent termination of a direct vent application must
terminateatleast12 inchesfromanyopening throughwhich
fluegasesmayenterabuilding(door,window, or gravity air
inlet).
• Theventtermination ofventpiperun verticallythrougharoof
mustterminateatleast12inchesabovetheroofline(orthe
anticipated snow level) and be at least 12 inches from any
verticalwall(includinganyanticipatedsnowbuildup).
• Aventterminationshallnotterminateoverpublicwalkways
or over an area where condensate or vapor could create a
nuisanceorhazardorcouldbedetrimentaltotheoperation
ofregulators,reliefvalves,orotherequipment.

14
45 DEGREE
LONG-SWEEP
ELBOWS
V
E
N
T
Increased Clearance Configuration
NOTE: Do not use other commercially available “no hub connec-
tors” due to possible material conflicts. The vent/flue pipe can also
besecuredusinga PVCorABSelboworcouplingusing the appro-
priateglue(see Section IX, Materials and Joining Methods.
NOTE: For non-direct vent installations, a minimum of one 90°
elbowshouldbe installed on thecombustionair intake coupling
to guard against inadvertent blockage.
COMBUSTION AIR PIPE
DIRECTVENT INSTALLATIONS
Onupflowunitssecurethecombustionairintakepipe directly to the
airintakecoupling. NOTE: Because of probable material conflicts,
donotuseothercommerciallyavailable“nohubconnectors”.
NON-DIRECTVENTINSTALLATIONS
Aminimum of one 90° elbow shouldbeinstalledon the combustion
airintake“coupling”toguardagainst inadvertent blockage.
RUBBER
COUPLING
WITH WORM
GEAR CLAMPS
COMBUSTION
AIR PIPE
(DIRECT VENT ONLY)
VENT/FLUE
PIPE
(NON-DIRECT VENT)
90 PVC
ELBOW
(NON-DIRECT VENT)
STANDARD CONNECTIONS
OR
UPFLOW
ALTERNATE FURNACE CONNECTIONS
If the standard locations are undesirable for a specific installation,
alternatesidepanellocations are availableforvent/fluepipeconnec-
tions. Theselocationsmaybeofparticularbenefittouprightupflow
installations requiring additional access to an A coil or to horizontal
installationsdesiringvent/flue pipingrunverticallyfromthe sideofthe
cabinet.
NOTE: Standard and alternate locations can be combined (i.e., an
installationmayusethestandardcombustionair intake location but
usethealternatevent/fluelocation),if needed.
• The combustion air intake termination of a direct vent
application should not terminate in an area which is
frequentlydustyordirty.
12"
Non-Direct Vent
Vent/Flue Termination
No Terminations
Above Walkway
12"
min.
4'
min.
Non-Direct Vent
Vent/Flue Termination
Direct Vent
Vent/Flue Termination
<10'
Forced Air
Inlet
Non-Direct Vent
&
Direct Vent
Vent/Flue Terminations
Grade or Highest
Anticipated
Snow Level
3' min.
12" min.
4' min.
12" min.
Vent Termination Clearances
NOTE: InCanada,theCanadian Fuel Gas Code takes precedence
overtheprecedingterminationrestrictions.
CANADIAN VENTING REQUIREMENTS
InCanada,ventingmustconformtotherequirements of the current
CAN/CSA-B149.1-05InstallationCode.Use only CSA-listed, ULC-
S636 compliant two-three-inch diameter PVC orABS pipe, solvent
cement,andfittings throughout. Thecertifiedpipingshould beclearly
marked with the ULC Std “S636” on the pipe and fittings. Carefully
followthepipemanufacturers’instructionsforcutting,cleaning,and
solventcementingPVCand/orABS.
The vent can be run through an existing unused chimney provided
the space between the vent pipe and the chimney is insulated and
closedwithaweather-tight,corrosion-resistantflashing.
STANDARD FURNACE CONNECTIONS
Itistheresponsibility of theinstallertoensurethat the pipingconnec-
tionstothefurnacearesecure,airtight,andadequatelysupported.
Asshipped,attachment“couplings”forvent/flueandcombustionair
intake pipe connections are provided on the furnace’s top cover
(upflow). To use the standard connections, field supplied vent/flue
pipeandcombustionairintakepipe(when applicable) should be se-
cureddirectlytothe furnace at these locations.
VENT/FLUE PIPE
Vent/fluepipe can besecuredtothevent/fluecouplingusing the rub-
bercouplingandwormgearhoseclampsprovidedwiththisfurnace
(see “Standard Connections” figure). The rubber coupling allows
separation of the vent/flue pipe from the furnace during servicing.
Combustion Air and Vent piping should be routed in a manner to
avoid contact with refrigerant lines, metering devices, condensate
drain lines, etc. If necessary, clearances may be increased by uti-
lizing two 45 deg. Long-Sweep Elbows and creating an “S” joint to
provide additional space at connection locations. This joint can be
rotated on the fitting to establish maximum clearance between re-
frigerant lines, metering devices, and condensate drain lines, etc.
This joint is the equivalent of one 90 deg. elbow when considering
elbowcount.

15
E DGES OF SHEET METAL HOLES MAY BE SHARP . U SE GLOVES AS A
PRECAUTION WHEN REMOVING HOLE PLUGS .
WARNING
ALTERNATE VENT/FLUE LOCATION
Thealternatevent/fluelocationis the largeholedirectlyinlinewith the
induceddraftblower outlet. Tousethealternatevent/fluelocationre-
fer to the following steps, the “Vent/Flue Pipe Cuts” figure, and the
“AlternateVent/Flue Location” figure.
1. Remove and save the four screws securing the vent/flue
coupling to the furnace top panel.
2. Loosen the worm gear hose clamps on the rubber elbow
and detach it from both the induced draft blower and the
vent/flue pipe.
3. Remove the vent/flue pipe from the furnace.
4. Cut the vent/flue pipe 3.75 inches from the flanged end of
the pipe. See Vent/Flue Pipe Cuts figure. The section of
pipe attached to the coupling will reach through the side
panel to the induced draft blower. Discard remaining pipe
and elbows.
FLANGE
CUT HERE
3.75"
Vent/Flue Pipe Cuts
5. Remove plastic plug from alternate vent/flue location.
Relocate and install plug in standard vent/flue location (top
cover).
6. Insert cut section of vent/flue pipe and coupling into alternate
vent/flue location. Using a rubber coupling and worm gear
hose clamps from the drain kit bag, attach the vent/flue pipe
and coupling to the induced draft blower. Secure the
coupling to the cabinet using the screws removed in step 1
or with field-supplied 3/8” #8 self drilling screws.
T HE RUBBER ELBOW IS NOT DESIGNED TO SUPPORT A LOAD . W HEN
THE RUBBER ELBOW IS MOUNTED EXTERNALLY TO THE FURNACE
CABINET , EXTREME CARE MUST BE TAKEN TO ADEQUATELY SUPPORT
FIELD - SUPPLIED VENT / FLUE PIPING , AS DAMAGE CAN RESULT IN
LEAKS CAUSING BODILY INJURY OR DEATH DUE TO EXPOSURE TO
FLUE GASES , INCLUDING CARBON MONOXIDE .
WARNING
7. For upright installations, externally mount the rubber elbow
tothevent/fluecouplingusingawormgearhoseclamp. Secure
fieldsuppliedvent/flue pipingtotherubberelbow usingaworm
gearhoseclamp. NOTE: Useofthealternatevent/fluelocation
foruprightinstallations,requiresthedraintrapbeinstalled on
the same side of the unit as the flue pipe.
8. For horizontal installations, externally secure the field-
suppliedvent/fluepipedirectly tothevent/fluecouplingusing a
PVCorABScouplingorelbow.
UPFLOW
REMOVE
4 SCREWS
3
REMOVE
PIPE
2
DETACH RUBBER
ELBOW FROM
ID BLOWER AND
VENT/FLUE
PIPE
5
REMOVE
AND RELOCATE
1
UPFLOW/HORIZONTAL
6
SECURE TO
ID BLOWER WITH
RUBBER COUPLING
AND HOSE
CLAMPS
6
SECURE TO
CABINET WITH
SCREWS
AlternateVent/FlueLocation
NON-DIRECT VENT (SINGLE PIPE) PIPING
Non-direct vent installations require only a vent/flue pipe. The vent
pipecanbe runhorizontallywithanexitthroughthesideof thebuilding
orrunverticallywithanexitthroughtheroofofthebuilding. Thevent
canalsoberunthrough an existing unusedchimney;however,it must
extend a minimum of 12 inches above the top of the chimney. The
space between the vent pipe and the chimney must be closed with a
weather-tight,corrosion-resistantflashing. For detailsconcerningcon-
nection of the vent/flue pipe to the furnace, refer to Section IX, Vent/
Flue Pipe and Combustion Air - Standard Furnace Connections or
Alternate Furnace Connections for specific details. Refer to the fol-
lowing Non-DirectVent(SinglePipe) Piping -Vent/FluePipeTermina-
tionsforspecificdetailsontermination construction.
Although non-directventinstallationsdonotrequireacombustionair
intake pipe, a minimum of one 90° elbow should be attached to the
furnace’scombustionairintake if:anuprightinstallationuses thestan-
dardintakelocation. Thiselbowwillguardagainstinadvertentblock-
ageoftheairintake.
VENT/FLUE PIPE LENGTHS AND DIAMETERS
Refertothefollowingtableforapplicablelength,elbows,andpipedi-
ameter for construction of the vent/flue pipe system of a non-direct
vent installation. In addition to the vent/flue pipe, a single 90° elbow
shouldbesecuredtothecombustionair intake to prevent inadvertent
blockage. Theteeusedinthevent/flueterminationmustbeincluded
whendeterminingthenumberofelbowsin the piping system.

16
01234567
45,000 2 or
2 1/2 201 196 191 186 181 176 171 166
70,000 2 or
2 1/2 140 135 130 125 120 115 110 105
90,000 2 or
2 1/2 20 15 10
90,000 3 122 115 108 101 94 87 80 73
115,000 2 or
2 1/2 15 10 5
115,000 3 112105989184777063
Not Applicable
Not Applicable
Direct Vent (2 - Pipe) and Non-Direct Vent (1 - Pipe)
6
Maximum Allowable Length of Vent/Flue Pipe
& Combustion Air Pipe(ft)
(1) (2)
Unit Input
(Btu)
Pipe
Size
(4)
(in.)
Number of Elbows
(3) (5)
1) Maximumallowable limitslisted onindividual lengthsfor inletand flueand
NOTa combination.
2) Minimum requirement for each vent pipe is five (5) feet in length and one
elbow/tee.
3) Tee used in the vent/flue termination must be included when determining
the number of elbows in the piping system.
4) 2 1/2” or 3” diameter pipe can be used in place of 2” diameter pipe.
5) IncreasedClearanceConfigurationsusing(2) 45deg. LongSweepelbows
should be considered equivalent to one 90 deg. elbow.
6) One90° elbowshouldbe securedto thecombustion airintakeconnection.
VENT/FLUE PIPE TERMINATIONS
NOTE: If either a 90 degree or 45 degree elbow is used for termina-
tion,itmustbepointeddownward.
Thevent/fluepipemayterminatevertically, as through a roof, or hori-
zontally,asthroughanoutsidewall.
Verticalvent/fluepipeterminationsshouldbeasshowninthefollow-
ing figure. Refer to Section IX, Vent/Flue Pipe and Combustion Air
Pipe - Termination Locations for details concerning location restric-
tions. The penetration of the vent through the roof must be sealed
tightwithproperflashingsuchasis used with a plasticplumbingvent.
Horizontal vent/flue pipe terminations should be as shown in the fol-
lowingfigure.RefertoSectionIX,Vent/FluePipeand CombustionAir
Pipe - Termination Locations for details concerning location restric-
tions. A 2 3/8” diameter wall penetration is required for 2” diameter
pipe. A 3” diameter hole is required for a 2 1/2” pipe and a 3 1/2”
diameter hole is required for 3” diameter pipe. To secure the pipe
passingthroughthewall andprohibitdamagetopipingconnections, a
couplingshouldbeinstalledon either side of the wall and solvent ce-
mentedtoalengthofpipeconnectingthe twocouplings. Thelengthof
pipe should be the wall thickness plus the depth of the socket fittings
tobeinstalledontheinsideand outside of the wall. The wallpenetra-
tionshouldbesealedwithsiliconecaulkingmaterial.
Inabasementinstallation,thevent/fluepipecanberun between joist
spaces. Iftheventpipemustgo below a joist andthenupintothelast
joistspaceto penetrate the header,two45°elbowsshouldbeused to
reachtheheaderratherthantwo90°elbows.
NOTE: Terminate both pipes in the same pressure zone (same
side of roof, no major obstacles between pipes, etc.).
COMBUSTION AIR INTAKE
(OPTIONAL)
*Not required for
single pipe installation
TEE (OPTIONAL)
96”MAX.-3”MIN.
ROOFLINE
INTAKE
SCREEN
OPTIONAL
12” MIN
HEIGHT DIFFERENCE
BETWEEN
INTAKE AND VENT
12” MIN TO ROOF OR HIGHEST
ANTICIPATED SNOW LEVEL
STRAIGHT
ELBOWS
_____________________________________
V
ENT/FLUE TEE (OPTIONAL)
or
90° ELBOW TURNED
DOWN
12" MIN. ABOVE
HIGHEST ANTICIPATED
SNOW LEVEL
12" MIN.
Horizontal Termination (Single Pipe)
Above Highest Anticipated Snow Level
DIRECT VENT (DUAL PIPE) PIPING
Direct vent installations require both a combustion air intake and a
vent/fluepipe. Thepipesmaybe run horizontally andexitthroughthe
side of the building or run vertically and exit through the roof of the
building. The pipes may be run through anexisting unused chimney;
however, they must extendaminimumof12inchesabovethetopof
thechimney. The spacebetweenthepipesandthechimneymustbe
closedwitha weathertight,corrosionresistantflashing. Both thecom-
bustionairintakeandavent/flue pipeterminationsmustbeinthesame
atmosphericpressurezone. RefertoSectionIX,Vent/FlueandCom-
bustionAirPipe-TerminationLocationsorConcentricVentTermina-
tion for specific details on termination construction. For details con-
cerning connection of pipes to the furnace, refer to the Section IX,
Vent/Flue Pipe and Combustion Pipe - Standard Furnace Connec-
tionsorAlternateFurnaceConnections.

17
VENT/FLUE AND COMBUSTION AIR PIPE LENGTHS AND DIAMETERS
Refer to the following table for applicable length, elbows, and pipe
diameter for construction of the vent/flue and combustion air intake
pipe systems of a direct vent (dual pipe) installation. The number of
elbowstabulatedrepresents thenumberofelbowsand/orteesin each
(Vent/Flue& CombustionAirIntake)pipe. Elbows and/orteesusedin
the terminations must be included when determining the number of
elbowsin the piping systems.
If the combustion air intake pipe is to be installed above a finished
ceiling or other area where dripping of condensate will be objection-
able,insulationofthecombustionairpipemayberequired. Use 1/2”
thickclosedcellfoaminsulationsuchasArmaflex orInsultubewhere
required.
VENT/FLUE AND COMBUSTION AIR PIPE TERMINATIONS
The vent/flue and combustion air pipes may terminate vertically, as
througharoof,orhorizontally,asthroughanoutsidewall.
Vertical pipe terminations should be as shown in the following figure.
RefertoSectionIX,Vent/Flue Pipe and Combustion Pipe - Termina-
tion Locations for details concerning location restrictions. The pen-
etrations through the roof must be sealed tight with proper flashing
such as is used with a plastic plumbing vent
Horizontal terminations should be as shown in the following figure.
RefertoSectionIX, Vent/Flue Pipe and Combustion Pipe - Termina-
tionLocationforlocationrestrictions. A23/8”diameter wallpenetra-
tionisrequiredfor2”diameterpipe. A3” diameter hole isrequiredfor
a 2 1/2” pipe and a 3 1/2” diameter hole is required for 3” diameter
pipe. To secure the pipe passing through the wall and prohibit dam-
age to piping connections, a coupling should be installed on either
side of the wall and solvent cemented to a pipe connecting the two
couplings. The pipe length should be the wall thickness plus the
depthofthesocketfittingstobeinstalledontheinsideand outside of
thewall. Thewallpenetrationshould be sealed withsiliconecaulking
material.
DRAIN
TRAP
FRONT COVER
DRAIN PORT
TUBE(S) 2
GREEN
HOSE
CLAMPS
(3 PLACES)
RIGHT SIDE
PANEL
RUBBER ELBOW
DRAIN PORT
TUBE 1
SIDE PANEL
GROMMET
HOLES
HOSE
B
HOSE
A
RUBBER
ELBOW
RED HOSE
CLAMP
SILVER HOSE CLAMP
Upright “Standard” Connections - Left Side
LEFT
SIDE PANEL
FRONT COVER
DRAIN PORT
HOSE A
SIDE PANEL
DRAIN
HOLES
TUBE(S) 2
DRAIN
TRAP
GREEN HOSE
CLAMPS
(3 PLACES)
TUBE 1
RUBBER
ELBOW
HOSE B
RUBBER
ELBOW
DRAIN PORT
RED HOSE
CLAMP
SILVER HOSE
CLAMP

18
90º OR 45°
ELBOW
SCREEN
(OPTIONAL)
12" MIN. TO GRADE OR
HIGHEST ANTICIPATED
SNOW LEVEL
6” MAX
10”- 24”
4” MIN
Standard Horizontal Terminations (Dual Pipe)
Vent & CombustionAir Intake Measurements for Standard Hori-
zontal Terminations (Dual Pipe)
Center to center = 10” min / 24” max.
Verticalseparation:0”-24”
Vent termination from wall = 8” min / 12” max.
Combustion air intake from wall = 6” max.
Ventandintakeclearancetoground
oranticipatedsnowlevel = 12” min.
____________________________________
SCREEN
(OPTIONAL)
AIR
INTAKE
90°
ELBOWS
12" MIN. ABOVE
HIGHEST ANTICIPATED
SNOW LEVEL
3”-24” BETWEEN PIPES
Combustion Air Intake may also be snorkeled to obtain 12” min ground
clearance.
AlternateVent TerminationAboveAnticipatedSnowLevel
(DualPipe)
Upright “Alternate” Connections - Right Side Only

19
VENT/INTAKE TERMINATIONS FOR INSTALLATION OF MULTIPLE
DIRECT VENT FURNACES
Ifmorethanone direct ventfurnaceistobeinstalled vertically through
acommonrooftop,maintainthe same minimum clearances between
theexhaustvent and air intake terminations of adjacent units as with
theexhaustventandairintaketerminationsofasingleunit.
Ifmorethanonedirectventfurnaceistobeinstalledhorizontallythrough
a common side wall, maintain the clearances as in the following fig-
ure.Always terminate all exhaust vent outlets at the same elevation
andalwaysterminateallairintakesatthesameelevation.
HOSE A
HOSE B
SIDE PANEL
GROMMET
HOLES
GREEN
HOSE
CLAMP
(3 PLACES)
TUBE 1
RUBBER
ELBOW
RIGHT
SIDE
PANEL
DRAIN TRAP
TUBES 2 RUBBER ELBOW
DRAIN PORT
FRONT COVER
DRAIN PORT
FRONT
COVER
PRESSURE
TAP
RED HOSE
CLAMP
SILVER HOSE
CLAMP
Horizontal Connections - Right Side Down
LEFT SIDE
PANEL FRONT COVER
DRAIN PORT
SIDE PANEL
GROMMET
HOLES
DRAIN TRAP
TUBE(S) 2
GREEN HOSE
CLAMPS
(3 PLACES)
HOSE A
HOSE B
INDUCED
DRAFT BLOWER
DRAIN PORT
FRONT
COVER
PRESSURE
TAP
RED HOSE CLAMP
Horizontal Connections - Left Side Down
3” MIN
12” MIN TO GRADE OR HIGHEST
ANTICIPATED SNOW LEVEL
12” MIN SEPARATION
3” - 24”
OPTIONAL
INTAKE
SCREENS
Termination of Multiple Direct Vent Furnaces

20
CONCENTRIC VENT TERMINATION
Refer to the directions provided with the Concentric Vent Kit (DCVK)
forinstallationspecifications.
SIDE WALL VENT KIT
This kit is to be used with 2” or 3” direct vent systems. The vent kit
must terminate outside the structure and may be installed with the
intakeandexhaustpipeslocatedside-by-sideorwith one pipe above
the other. This kit is NOT intended for use with single pipe (indirect
vent)installations.
Refer to the directions furnished with the Side Wall Vent Kit (p/n
0170K00000S) for installation specifications.
X.CONDENSATEDRAINLINES&DRAIN TRAP
GENERAL
A condensing gas furnace achieves its high level of efficiency by ex-
tracting almost all of the heat from the products of combustion and
cooling them to the point where condensation takes place. The con-
densate which is generated must be piped to an appropriate drain
location.
In upright installations, the furnace’s drain hoses may exit either
the right or left side of the furnace. NOTE: If the alternate vent/flue
outlet is utilized in an upright installation, the drain trap and drain
connections must be located on the same side as the alternate
vent/flue outlet.
In horizontal installations, the drain hoses will exit through the
bottom (down side) of the unit with the drain trap suspended be-
neath the furnace. The field-supplied drain system must be in
accordance with all local codes and the instructions in the follow-
ing sections.
Follow the bullets listed below when installing the drain system.
Refer to the following sections for specific details concerning fur-
nace drain trap installation and drain hose hook ups.
• The drain trap supplied with the furnace must be used.
• The drain line between furnace and drain location must
maintain a 1/4 inch per foot downward slope toward the
drain.
• Do not trap the drain line in any other location than at
the drain trap supplied with the furnace.
• If the drain line is routed through an area which may
see temperatures near or below freezing, precautions
must be taken to prevent condensate from freezing
within the drain line.
• Ifanairconditioningcoilisinstalledwiththefurnace,a
common drain may be used. An open tee must be
installedinthedrainline,nearthecoolingcoil,torelieve
positive air pressure from the coil’s plenum. This is
necessarytoprohibitanyinterferencewiththefunctionof
thefurnace’sdraintrap.
UPRIGHT INSTALLATIONS
In an upright installation drain hoses are connected to drain ports on
therubberelbow and the recuperator coil front cover.Thedrainlines
are then routed through the right or left side panel and into the drain
trapsecuredtothe outside of the cabinet.
NOTE: RefertoSectionX,CondensateDrainLinesandDrainTrap-
Alternate Vent/Flue Hose Connections for upright installations using
analternatevent/flueoutlet.
STANDARD RIGHT OR LEFT SIDE DRAIN HOSE CONNECTIONS
Upright installations using the standard vent/flue outlet require drain
hoses to be connected as follows. The following quantity of hoses,
tubes,andhoseclampsareprovided with the unit.
DRAIN TRAP
QTY: 1
GREEN
HOSE CLAMPS
QTY: 3 SILVER
HOSE CLAMP
QTY: 1
TUBE 2
QTY: 2
TUBE 1
QTY: 1
HOSE B
QTY: 1
HOSE A
QTY: 1
RED
HOSE CLAMP
QTY: 1
Hose and Tube Identification
1. Remove the rubber plug/cap from the front cover drain port
(right or left side, depending on the intended drain trap
mounting).
2. Secure HoseAtofrontcoverdrainportwith a red hose clamp.
Routehosetorear side panel grommet hole.
NOTE: For left side drainage, grommets will have to be relocated
to left side panel.
3. Cut and remove 1/4 inch from the end of the drain port on the
rubberelbow.
4. InsertTube1into rubberelbowdrainportandsecurewith silver
hoseclamp. Angletubeoutwardtowardfrontoffurnace.
5. Rightsidedrains
Cut173/4inches from thelongend(endopposite the bend)of
HoseB.Save thepartwith thebendanddiscardthe173/4inch
piecethatwascut. SecuretheremaininghosetoTube1with
a green hose clamp. Route the other end of Hose B to front
rightsidepanelgrommethole.
Leftsidedrains
Cut“X”inchesfrom thelongendofHose B anddiscard. Refer
to table for appropriate length to cut. Secure remaining hose
toTube1with agreenhoseclamp. Routeother end ofHoseB
tofrontleftsidepanelgrommethole.
Cabinet Width
(inches) Models (kBTU_Tons) "X" Length to Cut From Long End of Hose B
045_30
070_30
070_40
090_40
090_50
115_50
24 1/2 None
17 1/2
21
7 inches
3 1/2 inches
6. Insert short end of each Tube 2 through side panel grommet
holes. Secure tubes to HoseA and Hose B with green hose
clamps. Ensurehosesandtubesmaintainadownwardslope
forproperdrainageandthattheyare not kinked or binding.
For details concerning mounting of the drain trap, refer to Section X,
Condensate Drain Lines and Drain Trap - Upright Drain Trap Mount-
ing.
ALTERNATE VENT/FLUE DRAIN HOSE CONNECTIONS
Uprightinstallationsusingthealternate vent/flueoutletwillrequire“right-
side only” drain hoses to be connected as follows. Refer to Section
IX, Vent/Flue Pipe and Combustion Air Pipe for details on alternate
vent/fluepipeconnection.