Payne PG9MAA User manual

Mn )n Manual
4-WAY MULTIPOISE
FIXED-CAPACITY DUAL-VENT
CONDENSING GAS FURNACE
SIZES 040 THRU 140
PG9MAA
Series F
As all F\ERGY STARX, Panner. Payne
Heating and ( ooling has determined that
this ploduct meets the E\'ERGY STAR_
guidelmes fbl energy efficiency
NOTE: Read the entire instruction manual before starting the installation
This symbol --> indicates a change since the last issue,
INDEX
Page
SAFETY CONSIDERATIONS 2
(LEARAN(ES TO COMBUSTIBLES 3
DIMENSIONAL DRAWING 4
(ODES AND STANDARDS 6
ELECTROSTATIC DIS(HARGE (ESD) PRECAUTIONS 7
INTRODU( TION 7
APPLICATIONS 8
General 8
Upflow Applications 8
Downflow Applications .......................................................................................................................................................................................... 10
Horizontal Lek (Supply=Air Discharge) Applications .......................................................................................................................................... 12
Horizontal Right (Supply-Air Discharge) Applications ........................................................................................................................................ 13
LO(ATION ................................................................................................................................................................................................................. 16
General .......................................................................................................... 16
Furnace Location Relative to Cooling Equipment ................................................................................................................................................ 17
Location wit}*Respect to Combustion and (irculating Air Requirements ................................................... 18
Hazardous Locations ................................................................................................. 18
AIR FOR COMBE STION AND VENTILATION ............................................................................ 19
INSTALLATION ..................................................................................................... 22
Leveling Legs (If Desired) ............................................................................................. 22
Installation In L pflow or Downflow Applications ......................................................................... 22
Installation In Horizontal Applications ................................................................................ 24
Air Ducts ........................................................................................................ 24
General .............................................................................................................................................................................................................. 24
Ductwork Acoustical Treatment ....................................................................................................................................................................... 24
Supply Air (onnections .................................................................................................................................................................................... 25
Form: tM-PG9M-10 Cancels: tM-PG9M-09 Printed in U.S.A. 2-05 Catalog No. 53PG-9M29

SAFETYCONSIDERATIONS
z_ CAUTION:FURNACERELJAB_LITYHAZARD
improperinstallationormisapplicationoffurnacemayrequireexcessiveservicingorcauseprematurecomponentfailure,
Applicationofthisfurnaceshouldbeindoorswithspecia!attentiongiventoventsizingandmaterial,gasinputrate,airtemperature
rise,unitleveling,andunitsizing.
z_ WARNmNG:FIRE,EXPLOSBON,ELECTRICALSHOCKANDCARBONMONOXIDEPOISONINGHAZARD
Failuretofollowthiswarningcouldresultinelectricalshock,fire,personaliniury,ordeath.
Improperinstallation,adjustment,alteration,service,maintenance,orusecancausecarbonmonoxidepoisoning,explosion,fire,
electricalshock,orotherconditionswhichmaycausepersonalinjuryorpropertydamage.Consultaqualifiedinstaller,serviceagency,
localgassupplier,oryourdistributororbranchforinformationorassistance.Thequalifiedinstalleroragencymustuseonly
factory-authorizedandlistedkitsoraccessorieswhenmodifyingthisproduct.
Installing and servicing heating equipment can be hazardous due to gas and electrical components. Only trained and qualified personnel should
install, repair, or service heating equipment. Untrained personnel can per_brm basic maintenance J?unctions such as cleaning and replacing air
_]lters. All other operations must be perI:bmaed by trained service personnel. When working on heating equipment, observe precautions in literature,
on tags, and on labels attached to or shipped with unit and other safety precautions that may apply.
2

• This forced air furnace is equipped for use with natural gas at altitudes 0 - 10,0001:[ (0 - 3,050m), except 140 size furnaces are only approved for altitudes 0 - 7,000 ft.
(0 - 2,135m).
o An accessory kit, supplied by the manufiacturer, shall be used to convert to propane gas use or may be reduired for some natural gas applications.
e This furnace is for indoor installation in a building constructed on site. This furnace may be installed in a manufactured (nTabile) home when stated on rating plate and
using factory authorized kit..
o Thle furnace may be installed on combustible flooring in alcove or closet at _"ainimum Inches Clearar_ce To Combustible Construction as described below.
® This furnace requires a special venting system. Refer to the installation instructions for parts list and method of installation. This furnace is for use with schedule-40 PVC,
PVC-DV_v', CPVC, or ABS-D_AN pipe, and must not be vented in common with other gas-fired appliances. Construction through which vent!air intake pipes may be
installed is maximum 24 inches (60Omm), minimum 3/4 inches (19 mm) thickness (including roofing materials).
• Cetta foumaise A air pule6 est 6quip@e pour utilisatlen avec gaz natural et altitudes comprises entre 0 - 3,050m (0 - 10,000 pi),except6 queles fournaises de 140 taille
sent pour altitudes comprises entre 0 - 2,135m (0 - 7,000pi).
• Utilleer une trousse de conversion, foumle per le fiabrleant, pour passer au gaz propane ou pour certaines instNlations au gaz naturel.
o Cetta foumaise A air pule6 est pour installation A Hnt6rieur dans un bgtiment construit sur place. Cetta foumaise _ air pulse peut 6tre instalk_e dans une maison
pr6fiabdqu6e (maison mobile) si prescrit par la plaque signal_,tique et si I'on utilise une trousse specifi6e par le fabrleant.
¢ Cette foumaise peut 6tre install6e sur un plancher combustible dans un enfoncement ou un placard en observa!]t los D_gagement Minimum EB Pouces Avec
EI6rnents De Construction Combustibles.
• Cetta fournaise n6cessita un systeme d'6vacuatlen sp6cial. La m6thode d"installation et la Ilete des pi@ces n6cessaires figurent darts los instructions d'installation. Cette
foumalee doit s'utilleer avec la tuyautarie des nomenclatures 40 PVC, PVC-DWV CPVC ou ABS-DWV et ella ne peut pas 6tre ventil6e conjointment avec d'autres
appereils _ gaz. Epeleseur de la construction au travers de laquelle il est possible de faire passer los tuyaux d'a6ratlen (admission/6vacuation): 24 po (600 ram)
maximum, 3/4 po (19mm) minimum (y compris la toiture).
For upflow and dewnflow applications, furnace must be installed level, or pitched within 1/Z' of level. For a MIN 1/4" TO 1/2" MAX
horizontal application, the furnace must be pitched minimum 1/4" to maximum of 1/2" forward for proper
drainage. See Installation Manual for iMPORTANT unit supper[ details on horizontal applications.
Pour des applications de flux ascendant et descendant, le fournalee deit 6b_ install@e de niveau ou inclin6e
pes plus de 1/Z' du niveau. Pour une application horizontale, la foumaise doit _,tre indin6e entre minimum
1/4' et maximum 1/Z' du niveau pour le drainage appropri& En cas d'installation en position horizontale,
censultar lea renseignercents IM PORTANTS sur le support dans le manuel d'installation. HORIZONTAL
NININUM INCHES CLEARANCE TO COMBUSTIBLE CONSTRUCTION
ALL POSITIONS:
Minimum front clearance for service 24 inches (610ram).
? 1- 140 size furnaces require 1 inch back clearance to combustible materials.
DOWNFLOW POSITIONS:
1- For installatiorl on combustible floors only when installed on spedal base No. KGASB0201ALL
Coil Assembly, Part No. CD5 or CK5, or Coil Casing, Part No. KCAKC.
HORIZONTAL POSITIONS:
Line corRaet is permissible only between lines formed by intersections of top and two sides d
furnace jacket, and building joists, studs, or framing.
§ Clearance shown is for air inlet and air outlet ends.
O 120and 140 size fumaces require 1 inch bottom clearance to combustible materials.
DEGAGEMENT MINIMUM EN POUCES AVEC ELEMENTS DECONSTRUCTION COMBUSTIBLES
POUR TOUS LES POSITIONS:
Degagement avant minimum de 610mm (24 po) pour I'entretien.
1- 1- Pour les fournaises de 140 taille, 1 1_ (25mm) d6gagerT_ent des matedaux combustibles set
requis au-ardere.
POUR LA POSITION COURANT DESCENDANT:
1- Pour Hnstallation sur le plancher combustible seulerT_nt quand on utilise la base sp_ciale, piece
n ° KGASB0201ALL rensemble serpentin, pi6ce n ° CD5 eu CK5, eu le carter de serpentin,
pi6ce n ° KCAKC.
POUR LA POSITION HORIZONTALE:
Le contact n'est permis q0entre les lignes forrnees par les intersections du deseus et des
deuxc6tes de la chemise de la fournaise, et des solives, des montants eu de la charpente du
batiment.
§ La distance indiquee concerne I'extr@mite du tuyau d'arfivee d'air et I'extremite du tuyau de sortie
d'air.
Pour les fournaises de 120 et 140 taille, 1 po (25ram) degagement des materiaux cembusitbles
set requis au_desseus.
This furnace is approved for U PFLOW, DOWN FLOW and
HORIZONTAL installations.
Cette foumaise est approuv¢e pour I'installatlen HORJZONTALE
et la drculation d'atiVERS LE HAUT et VERS LE BAS.
Clearance arrows J_gagement
do not change with ne c.hange pas avec
furnace orientation, I'0rientation de la
g_n@ateur d'air d-_aud,
Vent dearance to
combustibles 0".
Clearance in indqes 0 (po) Dg_Jagement
D@gagement (po). d'@vent avec combustibles.
328066-201 REV. B LIT TOP
J
A04110
Fig. !--Clearances to Combustibles
These instr_ctions cover the minimum requirements and conform to existing national standards and sa_ty codes. In some instances, these
instructions exceed certain local codes and ordinances, especially those that may not have kept up with changing residential cop.strtlction practices.
We require these instructions as a minimum for a safe installation.
Wear safety glasses and work gloves. Have a fire extinguisher available during startoup and adjustment procedures and service calls.
Z_ CAUTION: CUT HAZARD
Failure to follow this caution may result in personal injury.
Sheet metal parts may have sharp edges or burrs, Use care and wear appropriate protective clothing and gloves when handling parts,
Recognize safety in_brmation This is the safety-alert symbol Z_x. When you see this symbol on the unit and in instructions or manuals, be alert
to the potential for personal injury.
Understand these signal words DANGER, WARNING, and (AUTION. These words are used with the sa_Ytyoalert symbol. DANGER identifies
the most serious hazards which wi_]l result in severe personal injury or death. WARNING signifies hazards which could result in personal ir_jury
or death. CAUTION is used to identi_}g unsafc practices which may result in minor personal injury or product and property damage. NOTE is used
to highlight suggestions which wil_ result in enhanced installation, reliability, or operation.
The PGgM Multipoise (ondensing Gas-Fired Furnaces are (SA (fermerly AGA and CGA) designocertified J_br natural and propane gases (see
_imaace rating plate) and for installation in alcoves, attics, basements, closets, utility rooms, crawlspaces, and garages. The ftmaace is
_hctory-shipped f_r use with natural gas. A (SA listed gas conversion kit is required to convert furnace _br use with propane gas.
See Fig. 1 for required clearances to combustibles.
3

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4

AIRFLOW
O-
] _ HORIZONTAL
LEFT
AIRFLOW
©
AIRFLOW
Fig. 3--Multipoise Orientations
\
HORIZONTAL [_
RIGHT
AIRFLOW
A93041
Maintain a l-in. clearance ti'om comhustible materials to supply air ductwork %r a distance of 36 inches horizontally from the fltrnace. See NFPA
90B or local code for fl_rther requirements.
These furnaces SHALL NOT be installed directly on carpeting, tile, or any other combustible material other than wood flooring. In downflow
installations, factolw accessory floor base MUST be used when installed on combustible materials and wood flooring. Special base is not required
when this fllmace is installed on manufacturer's (oil Assembly Part No. (D5 or CK5, or when (;oil Box Part No. KCAKC is used.
The PGgM 040 through 120 size units are CSA (fom_erly CGA and AGA) designocertified for use in manufi_cmred (mobile) homes when filctory
accessow conversion kit is used. The 140 size unit is NOT design-certified for use in manufactured (mobile) homes. These t'umaces are suitable
f'_r installation in a structure built on site or a manufactaIed building completed at final site. The design of this flmaace line is NOT CSA
design-certified for installation in recreation vehicles or outdoors.
--> This t'urnace is designed for continuous return-air n_ininmm temperature of 60_>F db or intermittent operation down to 55°F db such as when used
with a night setback thermostat. Returnoair temperature must not exceed 80_F db. Failure to follow these return-air limits may afflict reliability
of heat exchangers, motors and controls. (See Fig. 4.)
These t:arnaces are shipped with the drain and pressure tubes connected for UPFLOW applications. Minor modifications are required when used
in DOW_FLOW, HORIZONTAL RIGHT, or HORIZONTAL LEFT (supply-air discharge direction) applications as shown in Fig. 3. See details
in Applications section.
--> Install this t'urnace only in a location and position as specified in LOCATION and INSTALLATION sections of these instructions.
--> Combustion products must be discharged outdoors. (onnect this flul_ace to an approved vent system only, as specified in the Combustion Air and
Vent piping sections of these instructions.
--€ Never test fbr gas leaks with an open flame. Use a commercially available soap solution made specifically for detection of leaks to check all
connections as specified in the GAS PIPING section of these instructions.
--> Always install the fimaace to operate within the furnace's intended rise range with a duct system which has an external static pressure within the
allowable range as specified in the SET TEMPERATURE RISE section of these instructions.
--> When a t'urnace is installed so that supply ducts carry air circulated by the fl/mace to areas outside the space containing the fl/mace, the return
air shall also be handled by ducts sealed to the fl/mace casing and tem_inating outside the space containing the t:umace.
--> A gas-fired furnace for installation in a residential garage must be installed as specified in the Hazardous Locations section of these instn/ctions.
--> The t'urnace is not to be used for temporaw heating of buildings or structures under construction unless the fl/mace installation and operation
complies with the first CAUTION in the LOCATION section of these instructions.
FRONT
MAX80°F
MIN60°F
--> Fig, 4--ReturnoAir Temperature
5
A05004

BLOWERSHELFT-FURNACE
_DOOR
CONDENSATE \
TRAP (INSIDE) X I
FIELD --_
DRAIN
CONN
TUBE LOCATION
CONDENSATE TRAP-
DRAIN TUBE LOCATION
UPFLOW APPLICATIONS
i; CONDENSATE
TRA;uRNACE
SIDE/
261/4 1 /2
SIDE VIEW FRONT VIEW
DOWNFLOW AND ALTERNATE
EXTERNAL UPFLOW APPLICATIONS
_._ FURNACE
OOR
DRAIN
CONN
-- FURNACE
SIDE
I
¾
END VIEW FRONT VIEW
HORIZONTAL
APPLICATIONS
SLOT FOR SCREW --7
HORIZONTAL ]
APPLICATION ]
(OPTIONAL)I
Im !
'4
GUIDES
(WHEN USED)
//4OD
COLLECTOR BOX TO
TRAP RELIEF PORT
//2OD
INDUCER HOUSING
DRAIN CONNECTION
%OD
COLLECTOR BOX
DRAIN CONNECTION
7
SCREW HOLE FOR
UPFLOW OR DOWN-
FLOW APPLICATIONS
7/8 2(OPTIONAL)
2 //2-1N. PVC OR CPVC
FRONT VIEW SIDE VIEW
A93026
Fig, 5--Condensate Trap
7hose _:tlITlaces are shipped with the following materials to assist in proper furnace installation 7hose materials are shipped in the main blower
compartment
Installer Packet includes:
Installation Manual
Service Guide
User's Inibrmation Manual
Warranty Certificate
Loose Parts Bag includes:
Pressure tube extension
Collector box or condensate trap extension tube
Inducer housing &ain robe
1/2=in. CPVC street elbow
Drain tube coupling
Drain robe coupling grommet
Vent and combustion=air pipe support
Condensate trap hole [itler plug
Vent and combustion=air intake hole filler plug
Combustion-air pipe perforated disk assembly
Vent Pipe Extension (ONLY supplied with some _i/maces)
Quantity1
1
1
2
1
1
2
3
2
1
1
For accessow installation details, refer to accessow installation instructions
CODES AND STANDARDS
Follow all national and local codes and standards in addition to these instructions. The installation must comply with regulations of d-_e
serving gas supplier, local building, heating, plumbing, and other codes. In absence of local codes, the installation must comply with the national
codes listed below and all authorities having jurisdiction.
6

-->.
In the United States and Canada, %llow all codes and standards %r the %llowing:
PROCEDURE I--SAFETY
US: National Fuel Gas (7ode (NFGC) NFPA 54=2002/ANS1 Z223,1-2002 and the Installation Standards, Warm Air Heating and Air
Conditioning Systems ANSI NFPA 90B
CANADA: National Standard of Canada, Natural Gas and Propane Installation Code NSCNGPIC) CSA BI49 1-00
PROCEDURE 2--GENERAL mNSTALLAT]ON
US: NFGC and the NFPA 90B. FoI copies, contact the National Fire Protection Association Inc, Batterymarch Pail{, Quincy, MA 02269; or
_br only the NFGC contact the American Gas Association, 400 N. Capitol, N.W., Washington D( 20001
CANADA: NSCNGPIC. For a copy, contact Standard Sales, CSA International, 178 Rexdale Boulevard, Etobicoke (Toronto), Ontario, M9W
1R3, Canada.
A manu_hctured (Mobile) home installation must conform with the M_mz_acmred f_2)me ('on,strzlctio_ and &{/ely Standard, Tide 24 (TR, Part
32(_0, or when this standard is not applicable, the Standard for Mc_n_acnH'ed h2)me I_staHation (_Uanz(fi_etz_red f_%)me Sites, ('om_zznitie,s, and
5_.,t-L_,s), A.VhT,_\Z'S A225.1, and/or C.4_\;,_'hII-Z240, MH Serie,_' :'_lobi[e Homes
PROCEDURE a--COMBUSTION AND VENTILATION AiR
* US: Section 8.3 of the NFGC, Air fbr Combustion and Ventilation
* CANADA: Part 7 of the NSCNGPIC, Venting Systems and Air Supply for Appliances
PROCEDURE 4--DUCT SYSTEMS
* [S and CANADA: Air Conditioning Contractors Association (ACCA) Manual D, Sheet Metal and Air Conditioning Contractors National
Association (SMACNA), or American Society of Heating, Refl'igeration, and Air Conditioning Engineers (ASHRAE) 2001 Fundamentals
Handbook Chapter 34.
PROCEDURE 5--ACOUSTICAL LINING AND FIBROUS GLASS DUCT
* IS and CANADA: current edition of SMACNA, NFPA 90B as tested by UL Standard 181 _br Class I Rigid Air Ducts
PROCEDURE 6--GAS PIPING AND GAS PIPE PRESSURE TESTmNG
*/S: NFGC; chapters 5, 6, 7, and 12 and national plumbing codes
* CANADA: NSCNGPIC Part 3, 4, 5, A, B, E, and H.
NOTE: In the state of Massachusetts:
1. Gas supply comaections MUST be perfbrmed by a licensed plumber or gas fitter.
2. When flexible connectors are used, the nlaxinmm length shall not exceed 36 inches (915 ram).
3. When lever handle type manual equipment shutoff valves are used, they shall be T°handle valves.
4. The use of copper tubing _br gas piping is NOT approved by the state of Massachusetts.
PROCEDURE g--ELECTRiCAL CONNECTIONS
*LS: National Electrical Code (NEC) ANSINFPA 70-2002
* CANADA: Canadian Electrical Code CSA C22.1
ELECTROSTATIC DBSCHARGE (ESD) PRECAUTIONS
CAUTION: UNIT DAMAGE HAZARD
Failure to follow this caution may result in damage to unit components.
Electrostatic discharge can affect electronic components. Take precautions during furnace installation and servicing to protect the
furnace electronic control Precautions will prevent electrostatic discharges from personnel and hand tools which are held during the
procedure. These precautions will help to avoid exposing the control to electrostatic discharge by putting the furnace, the control, and
the person at the same electrostatic potential.
Disconnect all power to the furnace. Multiple disconnects may be required. DO NOT TOUCH THE CONTROL OR ANY WIRE
CONNECTED TO THE CONTROL PRIOR TO DISCHARGING YOUR BODY'S ELECTROSTATIC CHARGE TO GROUND.
2. Firmly touch a clean, unpainted, metal sur_i_ce of the fl_mace chassis which is close to the control Tools held in a person's hand during
grounding will be satisfactorily discharged.
3 After touching the chassis, you may proceed to service the control or connecting wires as tong as you do nothing that recharges your body
with static electricity (for example; DO NOT move or shuffle your feet, DO NOT touch ungrotmded objects, etc.).
4 If you touch ungrounded objects (recharge your body with static electricity), firmly touch a clean, unpainted metal sur_hce of the flul_ace
again befbre touching control or wires.
5 Use this procedure *\_r installed and uninstalled (ungrounded) fire, aces
6 Be[bre removing a new control fi'orn its container, discharge your body's electrostatic charge to ground to protect the conhol fl'orn damage.
If the control is to be installed in a [:urnace, fbllow items 1 through 5 be_bre bringing the control or yourself into contact with the fl/mace.
Put all used AND new contlols into containers before touching ungrounded objects.
7 An ESD smwice kit (available from commercial sources) may also be used to prevent ESD damage
7

PLUG
CAP
COLLECTOR BOX
DRAIN TUBE (BLUE
& WHITE STRIPED)
COLLECTOR BOX
TUBE (PINK)
TUBE (GREEN)
(MOLDED) DRAIN
TUBE (BEHIND
COLLECTOR BOX
DRAIN TUBE)
DRAIN TUBE (BLUE)
FIELD-INSTALLED
FACTORY-SUPPLIED
DRAIN TUBE
COUPLING (LEFT
DRAIN OPTION)
FIELD-INSTALLED
FACTORY-SUPPLIED
DRAIN TUBE
FACTORY-SUPPLIED
_/2-1NCPVC STREET
ELBOWS (2) FOR
LEFT DRAIN OPTION
FIELDqNSTALLED
FACTORY-SUPPLIED
DRAIN TUBE
COUPLING (RIGHT
DRAIN OPTION) A00288
Fig. 6--Factory-Shipped Upflow Tube Configuration
(Shown With Blower Access Panel Removed)
PLUG
CAP
COLLECTOR BOX
DRAIN TUBE (BLUE
& WHITE STRIPED)
COLLECTOR BOX
TUBE (PINK)
COLLECTOR BOX --
TUBE (GREEN)
COLLECTOR BOX --
DRAIN TUBE (BLUE)
CONDENSATETRAP __
INDUCER
HOUSING
DRAIN TUBE
(VIOLET)
O O
A00289
Fig. 7--ARernate Upflow Tube Configuration and
Trap Location
INTRODUCTION
The model PG9M 4-way multipoise, Gas-Fired, Catego UIV, direct=xent and non=direct vent, condensing f_/rnace is axailable in model sizes
ranging in input capacities of 40,000 to 138,000 Btuh
Z_ CAUTION: MINOR PROPERTY DAMAGE
Failure to follow this caution may result in minor property damage.
Local codes may require a drain pan under entire furnace and condensate trap when a condensing furnace is used in an attic
application or over a finished ceiling.
APPLICATIONS
PROCEDURE I--GENERAL
Some assembly and modifications are required %r [bmaces installed in any of the 4 applications shown in Fig, 3 All drain and pressure robes are
connected as shown in Fig, 6 See appropriate application instructions fbr these procedures
PROCEDURE 2--UPFLOW APPUCATIONS
An upflow f_/mace application is where f_/rnace blower is located below combustion and contlols section of furnace_ and conditioned air is
discharged upwards,
A. Condensate Trap Location (Factory-Shipped Orientation)
_he condensate tlap is factory installed in the blower shelf and fi!ctory connected for UPFLOW applications. A factow-supplied tube is used to
extend the condensate trap &ain connection to the desired furnace side _br field drain attachment See Condensate Trap Tubing (Factory°Shipped
Orientation) section for drain tube extension details, (See Fig. 5,)
B, Condensate Trap Tubing (Factory-Shipped Orientation)
NOTE: See Fig. 6 or tube routing 1abet on main furnace door to confirm location of these tubes,
g

-->
1 Collector Box Drain, Inducer Housing Drain, Relief Port, and Pressure Switch Tubes
These tubes should be fi_ctow attached to condensate trap and pressure switch ready for use in UPFLOW applications These tubes can be
identified by their connection location and also by a color label on each tube These tubes are identified as follows: collector box drain robe
(blue label), inducer housing drain robe (violet label or molded), relief port robe (green label), and pressure switch robe (pink label).
2 (ondensate Trap Drain Tube
The condensate trap drain connection must be extended for t_eld attachment by doing the following:
a. Determine location of field drain connection. (See Fig. 2or 60
NOTE: If internal filter is used, drain tube should be located to opposite side of casing t'rom remm duct attachment to assist in filter removal
b Remove and discard casing drain hole plug button fiom desired side
c. Install &ain robe coupling grommet (factory-supplied in loose parts bag) in selected casing hole
d Slide &ain robe coupling (factory=supplied in loose parts bag) through grommet ensuring long end of coupling fitces blower
e. (ement 2 fi_ctory=supplied li2-in stIeet CPV( elbows to the rigid drain tube connection on the condensate tlap (See Fig. 6) These
elbows must be cemented together and cemented to condensate trap drain connection.
NOTE: Failure to use CPVC elbows may allow drain to kink and prevent &aining.
f (onnect larger diameter drain robe and clamp (fitctory=supplied in loose parts bag) to condensate t_ap and clamp securely.
g Route robe to coupling and cut to appropriate length.
h Attach tube to conpling and clamp securely
C. Condensate Trap Location (ARernate Upflow Orientation)
An alternate location for the condensate trap is the teA-hand side of casing (See Fig. 2 and 7.)
NOT_=: It" the alternate tet't=hand side of casing tocation is used, the factow-connected drain and retief port robes must be disconnected and
modified _br attachment. See Condensate Trap Tubing (Alternate I pflow Orientation) section for tubing attachment
To relocate condensate tlap to the left=hand side, perfbm_ the following:
1 Remove 3 robes connected to condensate trap
2 Remove trap from blower shelf by gently pushing tabs inward and rotating tlap.
3 Install casing hole filler cap (tlactou=supplied in 1cone parts bag) into blower shelf hole where trap was removed.
Z_x WARNING: CARBON MONOXIDE POmSONING HAZARD
Failure to fo!low this warning could result in personal iniury or death,
Casing hole filler cap must be instal!ed in blower shelf hole when condensate trap is relocated to prevent combustion products being
drawn in from appliances in the equipment room,
4 Install condensate trap into left-hand side casing hole by inserting robe connection stubs through casing hole and rotating until tabs snap
into locking position
5 Fill unused condensate trap casing holes with plastic filler caps (factor-supplied in loose parts bag).
D, Condensate Trap Tubing {Alternate Upf[ow Orientation)
NOTE: See Fig 7 oi" tube routing label on main faInace door to confirm location of these robes
1. Collector Box Drain Tube
Connect collector box drain tube (blue label) to condensate trap.
NOTE: On 17-1/2-in. wide fuo'mces ONLY, cut robe between corn/gated sections to prevent kinks fi'om occurring.
2. Inducer Housing Drain Tube
a. Remove and discard LOWER (molded) inducer housing &ain robe which was previously connected to condensate trap.
b. Use inducer housing drain extension robe (violet label and factory=supplied in loose parts bag) to connect LOWER inducer housing drain
connection to the condensate trap
c. Determine appropriate length, cut, and connect robe.
d. Clamp robe to prevent any condensate leakage.
3. Relief Port Tube
a. Connect relief port tube (green label) to condensate trap.
b. Extend this robe (if required) by splicing to small diameter robe (factory=supplied in loose parts bag).
c. Determine appropriate length, cut, and connect robe.
E. Condensate Trap Field Drain Attachment
Refer to Condensate Drain section t\_r recommendations and procednIes
g. Pressure Sw{tch Tub{rig
The LOWER collector box pressure robe (pink label) is factor- connected to the pressure switch and should not require any modification
NOTE: See Fig. 6 or 7 or robe ronting label on main furnace door to check _br proper connections.
9

DRAIN TUBE (BLUE)
PLUG
COLLECTOR BOX --'-_
TUBE (GREEN)
COLLECTOR BOX
EXTENSION TUBE
COLLECTOR BOX "_
TUBE (PINK)
DRAIN TUBE (BLUE
& WHITE STRIPED)
EXTENSION TUBE
TRAP
]NDUCER HOUSING'
DRAINTUBE(VIOLET)
G,
Fig. 8--Downflow Tube Configuration
(Left-Hand Trap Installation)
O O
©
/f'-- PLUG
F COLLECTOR BOX
DRAIN TUBE (BLUE)
F COLLECTOR BOX
TUBE (PINK)
COLLECTOR BOX
TUBE (GREEN)
COLLECTOR BOX
EXTENSION TUBE
COLLECTOR BOX
DRAIN TUBE (BLUE
& WHITE STRIPED)
COLLECTOR BOX
EXTENSION TUBE
iNDUCER HOUSING
"_ DRAIN TUBE
F (VIOLET)
I_ CONDENSATE
_1 TRAP
_=== COLLECTOR BOX
EXTENSION
DRAIN TUBE
COUPLING
A00262
Fig. 9--Downflow Tube Configuration
(Right-Hand Trap Installation)
Upper Collector Box and Inducer Housing (Unused) Drain Connections
UPPER COLLECTOR BOX DRAIN CONNECTION
A00296
Attached to the l_ PPER collector box drain connection is a _ctow=installed corrugated, plugged robe (blue and white striped label). This tube is
plugged to prevent condensate leakage in this application. Ensure this robe is plugge&
NOTE: See Fig. 6 or 7or robe routing label on main f_lrnace door to check tbr proper connections.
UPPER INDUCER HOUSING DRAIN CONNECTION
Attached to the UPPER (unused) inducer housing &ain connection is a cap and clamp. This cap is used to prevent condensate leakage in this
application. Ensure d-ds connection is capped.
NOTE: See Fig. 6 or 7 or robe routing label on main fi/mace door to ciaeck [br proper connections.
H. Condensate Trap Freeze Protection
Refer to (ondensate Drain Protection section _br recommendations and procedures
PROCEDURE 3--DOWNFLOW APPLICATIONS
A downt]ow fmnace application is where farnace blower is located above combustion and controls section of furnace, and conditioned air is
discharged downwards.
A. Condensate Trap Location
7he condensate trap must be removed f_'om the factory-installed blower shelf location and relocated in selected application location as shown in
Fig. 2, 8, or 9.
To relocate condensate trap fi'om the blower shelf to desired location, perfbm_ the following:
1. Remove 3 tubes connected to condensate trap.
2. Remove trap flora blower shelf by gentty pushing tabs inward and rotating trap
3. Install casing hole filler cap (factouosupplied in loose parts bag) into blower shelf hole where trap was removed
---> z_ WARNING: CARBON NONOXIDE POISONING HAZARD
Failure to follow this warning could result in personal injury or death,
Casing hole filler cap must be installed in b!ower shelf hole when condensate trap is relocated to prevent combustion products being
drawn in from appliances in the equipment room.
4. Install condensate trap into left=hand side casing hole by inserting tube connection stubs through casing hole and rotating until tabs snap
into locking position,
5. Flit unused condensate trap casing holes with plastic f_ller caps (fSctory°supplied in toose parts bag)
i0

B, CondensateTrap Tubing
NOTE: See Fig 8 or 9 or tube routing label on main furnace door to check %r proper connections,
1 Collector Box Drain Tube
a, Remove fi_ctory=installed plug from LOWER collector box drain tube (blue and white striped 1abel),
b Install removed clamp and plug into EPPER collector box &ain robe (blue label) which was connected to condensate trap,
c, Connect LOWER collector box &ain connection to condensate trap,
(ondensate Trap Located on Left Side of Casing
(1.) Connect LOWER collector box &ain robe (blue and white striped label) to condensate trap. Tube does not need to be cut.
(2.) Clamp robe to prevent any condensate leakage.
(ondensate Trap Located on Right Side of Casing
(1.) Install &ain robe coupling (Factory=supplied in loose parts bag) into collector box &ain tube (blue and white striped label) which
was previously plugged.
(2.) Connect larger diameter drain robe (factory=supplied in loose parts bag) to drain robe coupling, extending collector box &ain robe
for connection to condensate trap.
(3.) Route extended collector box drain robe directly f_-om collector box drain to condensate tlap as shown in Fig. 9.
(4.) Determine appropriate length and cut.
(5.) Connect to condensate trap.
(6.) Clamp robe to prevent any condensate leakage.
2. Inducer Housing Drain Tube
a. Remove fi_ctory=installed cap and clamp from LOWER inducer housing drain connection.
b. Remove and discard UPPER (molded) inducer housing drain tube which was previously connected to condensate trap.
c. Install cap and clamp on UPPER inducer housing drain connection where molded drain robe was removed.
d. Use inducer housing drain tube (violet label and fhctow-supptied in loose parts bag) to connect LOWER inducer housing drain
connection to the condensate trap.
e. (onnect inducer housing drain connection to condensate trap.
(ondensate Trap Located on Left Side of Casing
(1.) Determine appropriate length and cut.
(2.) Connect robe to condensate trap.
(3.) Clamp robe to prevent any condensate leakage.
Condensate Trap Located on Right Side of (asing
(1.) Route inducer housing drain robe (violet label) directly flora inducer housing to condensate trap as shown in Fig. 9.
(2.) Determine appropriate length and cut.
(3,) Connect robe to condensate trap.
(4,) Clamp robe to prevent any condensate leakage,
3 Relief Port Tube
Refkr to Pressure Switch Tubing section fbr connection procedure,
C. Condensate Trap Field Drain Attachment
Refer to (ondensate Drain section fbr recommendations and procedures.
D, Pressure Switch Tubing
One collector box pressure tube (pink label) is f_ctory connected to the pressnre switch fbr use when t_urnace is installed in UPFLOW applications
This robe MUST be disconnected and used for the condensate trap relief port tube. The other collector box pressure robe (green label) which was
fhctory connected to the condensate trap relief port connection MUST be connected to the pressure switch in DOVv_TLOW or HORIZONTAL
RIGHT applications.
NOTE: See Fig. 8 or 9 or tube routing label on main I:umace door to check fbr proper connections.
Relocate robes as described below.
1. Disconnect collector box pressure tube (pink label) attached to pressure switch.
2. Extend collector box pressure robe (green label) which was previously connected to condensate trap relief port connection by splicing to
small diameter tube (factory°supplied in loose parts bag).
3. Connect collector box pressure robe (green label) to pressure switch connection labeled COLLE(TOR BOX.
4. Extend collector box pressure robe (pink label) which was previously connected to pressure switch by splicing to remaining small diameter
robe (fi_ctmT=supplied in loose parts bag).
5. Route this extended robe (pink label) to condensate tlap relief port connection.
11

6. Determine appropriate length, cut, and connect robe
7. Clamp robe to relief port connection
E. Condensate Trap Freeze Protection
Refer to Condensate Drain Protection section fbr recommendations and procedures.
PROCEDURE 4--HORIZONTAL LEFT (SUPPLYoAIR DISCHARGE) APPLICATIONS
A horizontal left fin'nace application is where ft/mace blower is located to the right of combustion and controls section of furnace, and conditioned
air is discharged to the left.
NOTE: The auxiliaw junction box (J-Box) MUST be relocated to opposite side of furnace casing. (See Fig. 10.) See Electrical Connection section
fbr J-Box relocation.
A. Condensate Trap Location
7he condensate trap must be removed i?om the factory-installed blower shelf location and relocated in selected application location as shown in
Fig. 2 or 10,
To relocate condensate trap fi'om the blower shelf to desired tocatiom peribnn the following:
l, Remove 3 tubes connected to condensate trap,
2, Remove trap fi'om blower shelf by gentty pushing tabs inward and rotating trap
3, Install casing hole filler cap (factouosupplied in loose parts bag) into blower shelf hole where trap was removed
--> Z_X WARNING: CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in personal injury or death,
Casing hole filler cap must be installed in blower shelf hole when condensate trap is relocated to prevent combustion products being
drawn in from appliances in the equipment room.
4. Install condensate tzap into le_hand side casing hole by inserting tube connection stubs through casing hole and rotating until tabs snap
into locking position.
5. Fill unused condensate trap casing holes with plastic filler caps (fhctory-supplied in loose parts bag)
B, Condensate Trap Tubing
NOTE: See Fig. l0 oz"tt'_be routing label on main [hrnace door to check for proper connections
1. Collector Box Drain Tube
a. Install drain tube coupling (*hctoryosupplied in loose parts bag) into collector box drain robe (blue label) which was previously connected
to condensate trap
b. (onnect large diameter drain robe and clamp (factory-supplied in loose parts bag) to drain tube coupling, extending collector box drain
tube,
cRoute extended robe (blue label) to condensate trap and cut to appropriate length
d, (lamp robe to prevent any condensate teakage,
2, Inducer Housing Drain Tube
a Remove and discard LOWER (molded) inducer housing drain robe which was previously connected to condensate trap
b, Use inducer housing &ain extension robe (violet 1abet and fhctow-supplied in toose parts bag) to connect LOWER inducer housing &ain
connection to dte condensate trap,
c Determine appropriate tength, cut, and connect robe,
d, (lamp robe to prevent any condensate teakage,
3, Relief Port Tube
a Extend collector box tnbe (green 1abel) which was previously connected to the condensate trap by splicing to small diameter tube
(factow-supplied in loose parts bag),
b. Route extended collector box pressure robe to relief port connection on the condensate trap
c. Determine appropriate length, cut, and connect robe.
d. (lamp robe to prevent any condensate leakage.
C. Condensate Trap Field Drain Attachment
Refer to Condensate Drain section for recommendations and procedures.
O. Pressure Switch Tubing
]7he LOWER collector box pressure tube (pink label) is factory connected to the pressure switch for use when furnace is installed in L PFLOW
applications. This tube MUST be disconnected, extended, rerouted, and then reconnected to the pressure switch in HORIZONTAL LEFT
applications.
NOTE: See Fig. 10 or robe routing label on main [hrnace door to check for proper connections.
12

PLUG i
AUXILIARY "J" BOX
CAP
COLLECTOR BOX
DRAIN TUBE
(BLUE AND WHITE STRIPED)
O
©
BOX EXTENSION
DRAIN TUBE
COLLECTOR BOX
EXTENSION TUBE
DRAIN TUBE COUPLING
COLLECTOR BOX
TUBE (GREEN)
DRAIN TUBE (VIOLET)
BOX
DRAIN TUBE (BLUE)
COLLECTOR BOX TUBE (PINK)
RELOCATE TUBE BETWEEN BLOWER SHELF AND INDUCER HOUSING FOR
040,060, AND 080 HEATING INPUT FURNACES
Modi_' tube as described below. Fig. 10--Horizontal Left Tube Configuration
1 Disconnect collector box pressure tube (pink label) attached to pressure switch,
2. Use smaller diameter robe (factory-supplied in loose parts bag) to extend robe disconnected in item l.
3. Route extended robe:
a. Behind inducer housing.
b. Between blower shelf and inducer housing.
c. Behind inducer motor bracket.
d. Between inducer motor and pressure switch.
4. Determine appropriate length, cut, and reconnect robe to pressure switch connection labeled COLLE(TOR BOX.
E. Condensate Trap Freeze Protection
Refer to Condensate Drain Protection section for recommendations and procedures.
F. Construct a Working Platform
Constlnct worldng platform where all required fhmace clearances are met (See Fig. 2 and 11 or 12.)
A00215
z_ CAUTION: UNIT MAY NOT OPERATE
Failure to fellow this caution may result in intermittent unit operation.
The condensate trap MUST be installed below furnace, See Fig, 5 for dimensions, The drain connection to condensate trap must also
be properly sloped to an open drain.
NOTE: Combustionoair and vent pipes are restricted to a minimum length of 5 ft (See Table 9 or 11.)
NOTE: A 12°in minimm_a offset pipe section is recommended with short (5 to g ft) vent systems. This recommendation is to reduce excessive
condensate droplets ti'om exiting the vent pipe. (See Fig. 11, 12, 38, or 54.)
NOTE: The 140 Size unit may not be installed in nonodirect vent applications.
PROCEDURE 5--HORBZONTAL RBGHT (SUPPLYoAIR D_SCHARGE) APPLmCATIONS
A horizontal right filmace application is where fimlace blower is located to the left of combustion and controls section of flu'nace, and conditioned
air is discharged to the right.
Z_ CAUTION: MINOR PROPERTY DAMAGE
Failure to follow this caution may result in minor property damage.
Local codes may require a drain pan under entire furnace and condensate trap when a condensing furnace is used in attic application
or over a finished ceiling.
13

INTAKE
_fVENT
30" MIN
HORIZONTAL PIPE
SECTION IS RECOMMENDED WITH
SHORT (5 TO 8 FT) VENT SYSTEMS
TO REDUCE EXCESSIVE
CONDENSATE DROPLETS FROM
EXITING THE VENT PIPE
SHUTOFF
GAS VALVE ACCESS OPENING
FOR TRAP
SEDIMENT
TRAP CONDENSATE
TRAP
DRAIN
NOTE: LOCAL CODES MAY REQUIRE A DRAIN PAN UNDER THE
FURNACE AND CONDENSATE TRAP WHEN A CONDENSING
FURNACE iS INSTALLED ABOVE FINISHED CEILINGS.
Fig. ll--Attic Location and Working Platform for Direct Vent Applications (Aim Sizes)
A93031
A 3-IN. MINIMUM CLEARANCE
TO COMBUSTION-AIR INTAKE
tS REQUIRED.
INTAKE
A 12-1N. MIN HORIZONTAL PIPE
SECTION IS RECOMMENDED WiTH
SHORT (5 TO 8 FT) VENT SYSTEMS
TO REDUCE EXCESSIVE
CONDENSATE DROPLETS FROM
EXITING THE VENT PIPE
SHUTOFF
GAS VALVE ACCESS OPENING
FOR TRAP
SEDIMENT
TRAP CONDENSATE
TRAP
DRAIN
NOTE: LOCAL CODES MAY REQUIRE A DRAIN PAN UNDER THE
FURNACE AND CONDENSATE TRAP WHEN A CONDENSING
FURNACE tS INSTALLED ABOVE FINISHED CEILINGS.
Fig. 12--Attic Location and Working Platform for Non-Direct Vent Applications (Sizes 040 through 120 Only)
]4
A96184

--€
COLLECTOR BOX DRAIN
(BLUE AND WHITE STRIPED)
INDUCER HOUSING
DRAIN TUBE(VIOLET)
COLLECTOR BOX
EXTENSION TUBE
TUBE (BLUE)
COLLECTOR BOX TUBE (GREEN)
BOX EXTENSION TUBE
COLLECTOR BOX TUBE (PINK)
BOX RELOCATED HERE
_"""_CONDENSATE
TRAP
A00214
Fig. 13--Horizontal Right Tube Configuration
NOTE: In (anada, installations shall be in accordance with CmTent NS(NGPI( Installation Codes an_or local codes.
NOTE: The auxiliary junction box (J=Box) MUST be relocated to opposite side of furnace casing. (See Fig. 13.) See Electrical Connection section
for J=Box relocation.
A. Condensate Trap Location
]The condensate tIap must be removed from the £_ctory-installed blower shelf" location and relocated in selected application location as shown in
Fig. 2 or 13.
To relocate condensate trap t'rom the blower shelf to desired location, perform the following:
1 Remove 3 tubes connected to condensate trap
2. Remove tlap t'rom blower shelf by gently pushing tabs inward and rotating trap.
3. Install casing hole filler cap (fSctory-supplied in loose parts bag) into blower shelf hole where trap was removed.
Z_ WARMNG: CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in personal injury or death.
Casing hole filler cap must be installed in blower shelf hole when condensate trap is relocated to prevent combustion products being
drawn in from appliances in the equipment room,
4. Install condensate trap into left-hand side casing hole by inserting robe connection stubs through casing hole and rotating until tabs snap
into locking position
5 Fill unused condensate trap casing holes with plastic filler caps (factor-supplied in loose parts bag),
B, Condensate Trap Tubing
NOTE: See Fig 13 or tube routing label on main fl/rnace door to check fbr proper connections,
1 Collector Box Drain Tube
a, Remove fitctory=iastalled plug from LOWER collector box drain tube (blue and white striped 1abel),
b Install removed clamp and plug into LPPER collector box drain tube {blue 1abel) which was previously connected to condensate trap,
c, Connect LOWER collector box &ain robe (blue and white striped label) to condensate trap, Tube does not need to be cut
d Clamp robe to prevent any condensate leakage
2 Inducer Housing Drain Tube
a, Remove fi_ctory=installed cap and clamp from LOWER inducer housing drain connection
b Remove and disca*d UPPER (molded) inducer housing &ain tube which was previously connected to condensate tlap,
c, Install cap and clamp on UPPER inducer housing drain connection where molded &ain robe was removed,
d. Use inducer housing drain extension robe (violet label and factory°supplied in loose parts bag) to connect LOWER inducer housing drain
connection to condensate trap
15

e Determine appropriate length, cut, and connect robe to condensate trap
£ Clamp robe to prevent any condensate leakage.
3. Relief Port Tube
Refer to Pressure Switch Tubing section for connection procedure
C. Condensate Trap Field Drain Attachment
Refer to Condensate Drain section for recommendations and procedures.
D, Pressure Switch Tubing
One collector box pressure robe {pink label) is f'actory connected to the pressure switch for use when Nrnace is installed in UPFLOW applications.
This robe MUST be disconnected and used for the condensate trap relief port robe. The other collector box pressm'e robe {green label) which was
f5ctory connected to the condensate tlap relief port connection MUST be connected to the pressure switch in DOWTNFLOW or HORIZONTAL
RIGHT applications.
NOTE: See Fig. 13 or robe routing label on main [itrnace door to check for proper connections.
Relocate robes as described below.
1. Disconnect collector box pressure robe {pink label) attached to pressure switch.
2. Extend collector box pressure tube (green label) which was previously connected to condensate trap relief port connection by splicing to
small diameter robe (fhctory-supplied in loose parts bag).
3. Route extended collector box pressure robe behind inducer motor bracket then between inducer motor and pressure switch.
4. Connect collector box pressure tube (green label) to pressure switch connection labeled COLLECTOR BOX.
5. Use remaining smaller diameter robe (factoryosupplied in loose parts bag) to extend collector box pressure tube {pink label) which was
previously connected to pressure switch.
6. Route this extended tube {pink label) to condensate trap relief port connection.
7. Detem_ine appropriate length, cut, and connect robe.
8. (lamp robe to relief port connection.
E. Condensate Trap Freeze Protection
Refer to Condensate Drain Protection section fbr recommendations and procedures.
F. Construct a Working Platform
Construct working plat_brm where all required fire, ace clearances are met, (See Fig 2 and 11 or 12)
z_ CAUTION: UNIT MAY NOT OPERATE
Failure to follow this caution may result in intermittent unit operation.
The condensate trap MUST be installed below furnace. See Fig. 5 for dimensions. The drain connection to condensate trap must also
be properly sloped to an open drain,
NOTE: Combustion-air and vent pipes are restricted to a minimum length of 5 ft. (See Table 9 or 11)
NOTE: A 12-in. minimum of£qet pipe section is recommended with short (5 to 8 f_) vent systems This recommendation is to reduce excessive
condensate &oplets fi'om exiting the vent pipe (See Fig. 11, 12, 38, or 54.)
NOTE: The 140 Size unit rnay not be installed in non-direct vent applications.
LOCATION
PROCEDURE I--GENERAL
]:his furnace must
be installed so the electrical components are protected fi'om water.
not be installed directly on any cornbustible material other fl_an wood flooring (refkr to SAFETY CONSIDERATIONS).
be located so combustion-air and vent pipe maximum lengths are not exceeded. Refer to Table 9 or 11.
be located where available electric power and gas supplies meet specifications on the furnace rating plate.
be attached to an air distribution system and be located as close to the center of the distribution system as possible. Refer to Air Ducts section.
be provided with ample space for servicing and cleaning. Always comply with minimum fire protection clearances shown on the furnace
clearance to combustibles label.
NOTE: For upflowidownflow applications install furnace so that it is level or pitched fbrward wid-dn 1i2oin. for proper fiuY*ace operation. For
horizontal applications pitch li4oin, minimum to 1/2-in. maximum fbrward to ensure proper condensate &ainage fi'om secondary- heat exchangers.
(See Fig. 14.)
When a f_arnace is installed so that supply ducts ca1_¢ air circulated by the furnace to areas outside the space containing the t\_rnace, the return
air shall also be handled by duct(s) sealed to fhrnace casing and terminating outside the space containing the Nrnace to ensure there will not be
a negative pressure condition within equipment room or space.
z_ WARNING: FIRE, INJURY OR DEATH HAZARD
Failure to follow this warning could result in fire, property damage, personal injury, or death.
Do not install furnace on its back. Safety control operation will be adversely affected. Never connect return-air ducts to back of furnace.
(See Fig. 15.)
16

LEVEL1/2,,TO___ iMAX(0") M1/2,,No__
UPFLOWORDOWNFLOW HORIZONTAL
Fig.14_FurnaceLocationforProperCondensate
Drainage
A02146
BACK
d
FRON1
Fig. 15--Prohibit Installation on Back
A93043
--> A CAUTION: UNIT DAMAGE HAZARD
This gas furnace may be used for construction heat provided that:
-The furnace is permanently installed with all electrical wiring, piping, air filters, venting and ducting installed according to these
installation instructions. A return air duct is provided, sealed to the furnace casing, and terminated outside the space containing the
furnace. This prevents a negative pressure condition as created by the circulating air blower, causing a flame rollout and/or drawing
combustion products into the structure.
-The furnace is controlled by a thermostat. It may not be "hot wired" to provide heat continuously to the structure without thermostatic
control.
-Clean outside air is provided for combustion. This is to minimize the corrosive effects of adhesives, sealers and other construction
materials. It also prevents the entrainment of drywall dust into combustion air, which can cause fouling and plugging of furnace
components.
-The temperature of the return air to the furnace is maintained between 55°F (13°C) and 80°F (27°C), with no evening setback or
shutdown. The use of the furnace while the structure is under construction is deemed to be intermittent operation per our installation
instructions.
-The air temperature rise is within the rated rise range on the furnace rating plate, and the firing rate has been set to the nameplate
value.
-The filters used to clean the circulating air during the construction process must be either changed ot thoroughly cleaned prior to
occupancy.
-The furnace, ductwork and filters are cleaned as necessary to remove drywall dust and construction debris from al! HVAC system
components after construction is completed.
-After construction is complete, verify furnace operating conditions including ignition, input rate, temperature rise and venting,
according to the manufacturer's instructions.
PROCEDURE 2--FURNACE LOCATION RELATIVE TO COOUNG EQUIPMENT
7he cooling coil must be installed parallel with oi"on downstream side of fm'nace to avoid condensation in heat exchanger, When installed parallel
with a fiu_aace, dampers or other means used to control flow of air shall prevent chilled air _?om entering t:umace If dampers are manually operated,
they n-rest be equipped with a means to prevent operation of either unit unless damper is in full-heat or _kfll=cool position,
A CAUTION: UNIT DAMAGE HAZARD
Failure to fellow this caution may result in minor property or unit damage.
If these furnaces are installed in an unconditioned space where ambient temperatures may be 32°F or lower, freeze protection
measures must be taken. (See Fig, 16.)
17

Fig. 16--Freeze Protection
A93058
PROCEDURE 3--LOCATION WiTH RESPECT TO COMBUSTmON AND CIRCULATING AIR REQUmREMENTS
\\\
18-1N. MINIMUM
TO BURNERS
Fig. 17--Installation in a Garage
A93044
Z_ WARNmNG: FmRE, EXPLOSION, raNJURY, OR DEATH HAZARD
improper location or inadequate protection could result in fire or explosion,
When furnace is installed in a residential garage, it must be installed so that burners and ignition sources are located a minimum of
18dn. above floor. The furnace must be located or protected to avoid physical damage by vehicles, When furnace is installed in a public
garage, airplane hangar, or other building having a hazardous atmosphere, unit must be installed in accordance with NFGC or
NSCNGPIC (See Fig. 17.)
PROCEDURE 4--HAZARDOUS LOCATIONS
A, Direct Vent Applications
Fm_ace may be located i*a a con:[_ned space without special provisio*as tbr dilution or ventilation air,
B. Non-Direct Vent Applications
Z_ CAUTION: UNIT DAMAGE HAZARD
Failure to follow this caution may result in intermittent unit operation.
Do not install furnace in a corrosive or contaminated atmosphere. Make sure all combustion and circulating air requirements are met.
Refer to the Air _br (ombustion and Ventilation section for details,
18

1SQ IN.
PER 4000
BTUH*
t
12"MAX
1 SQ IN.
PER 2000
BTUH*
T
DUCTS
TO
OUTDOORS
1 SQIN.
PER 2000
BTUH*
CIRCULATING AIR DUCTS
*Minimum dimensions of 3 in.
12"
MAX
1 SO IN.
PER
4000
BTUH*
09
o
o
£3
o
1SO IN.
PER
4000
BTUH*
C MAX
i 12" MAX l
DUCT 1 SQ IN.
TO PER 4000
OUTDOORS BTUH*
NOTE: Use any of the following
combinations of openings:
A&B C&D D&E F&G
A03174
Fig. 18--Air for Combustion, Ventilation, and DHution for
Outdoors
CtRCULATING AIR
DUCTS
I I
I I
INTERIOR
HEATED
SPACE
I I
I I
I I
VENTTHROUGH ROOF
12" MAX
F-Z _ 1SQIN.
-,c°_ PER 1000
_b- BTUH* IN DOOR
o_! ORWALL
LL<
O_ UNCONFINED
SPACE
}- j
Z_j
o<
asi 6" MtN
LL® (FRONT)t
Z_ 1SQIN.
<us PER 1000
_ BTUH* IN DOOR
<O W ORWALL
LU
-++1
©
-UIRCULATtNG AIR DUCTS
L12" MAX
* Minimum opening size is 100 sq in. with
minimum dimensions of 3 in.
tMinimum of 3 in. when type-B1 vent is used.
A03175
Fig. 1g--Air for Combustion, Ventilation, and Dilution from
Indoors
AIR FOR COMBUSTION AND VENTILATmON
Provisions £_r adequate combustion, ventilation, and diludon air must be provided in accordance with:
* I;.S° Installations: Section 8.3 of the NFG(, Air for (ombustion and Ventilation and applicable provisions of the local building codes.
Canadian InstMlations: Part 7 of the NS(NGPI(, Venting Systems and Air Supply for Appliances and all authorities having jurisdiction.
Z_ WARNING: FURNACE CORROSION HAZARD
Air for combustion must not be contaminated by halogen compounds, which include fluoride, chloride, bromide, and iodide. These
elements may corrode heat exchangers and shorten furnace life. Air contaminants are found in aerosol sprays, detergents, bleaches,
cleaning solvents, salts, air fresheners, and other household products.
The following types of furnace installations may require OL TDOOR AIR for combustion dt/e to chemical exposures:
* (ommercial buildings
Buildings with indoor pools
* Laua&y rooms
* Hobby or craft rooms, and
* (heroical storage areas
If air is exposed to the _bllowing substances, it should not be used _br combustion air, and outdoor air may be required _br combustion:
Permanent wave solutions
Chlorinated waxes and cleaners
Chlorine based swimming pool chemicals
Water softening chemicals
Deoicing salts or chemicals
Carbon tetrachloride
Halogen type refiigeraats
(;leaning solvents (such as perchloroethylene)
lg

Priutinginks_paiutremovers,varnishes,etc.
Hydrochloricacid
Cementsandglues
Antistatic_hbricso[_enersforclothesdwers
MasouD-acidwashingmaterials
All fl/el=burniugequipmentmustbesuppliedwithair_brfuelcombustion.Sufficientairmustbeprovidedtoavoidnegativepressureinthe
equipmentroomorspace.Apositivesealmustbemadebetweenthefl/ruacecabinetandthereturn-airducttopreventpullingairfl'omtheburner
areaandfl'om&aksa_guardopening.
z_ WARNING: CARBON MONOXIDE POISON{NG HAZARD
The operation of exhaust fans, kitchen ventilation fans, clothes dryers, attic exhaust fans or fireplaces could create a NEGATIVE
PRESSURE CONDITION at the furnace. Make-up air MUST be provided for the ventilation devices, in addition to that required by the
furnace. Refer to the Carbon Monoxide Poisoning Hazard warning in the venting section of these instructions to determine if an
adequate amount of make-up air is available.
The requirements for combnstion and ventilation air depend upon whether or not the furnace is located in a space having a volume of at least 50
cubic _bet per 1,000 Bmh input rating for all gas appliances installed in the space
Spaces having tess than 50 cubic f_et per 1,000 Btuh require the O[ TDOOR (OMB[ STION AIR METHOD.
Spaces having at least 50 cubic _ket per 1,000 Bmh may use the INDOOR (OMBUSTION AIR, STANDARD or KNOWN-AIR
INFILTRATION METHOD.
Outdoor Combustion Air Method
1. Provide the space with suB_cient air fbr proper combustion, ventilation, and dilution of flue gases using permanent horizontal or vertical
duct(s) or opening(s) directly communicating with the outdoors or spaces that fleely communicate with the outdoors.
2. Fig. 18 illustrates how to provide TWO OUTDOOR OPENINGS, one inlet and one outlet combustion and ventilation air openings to the
outdoors.
a. One opening MUST commence within 12" (300 ram) of the ceiling and the second opening MUST commence within 12" (300 ram) of
the floor.
b. Size openings and ducts per Fig. 18 and Table 1.
c. TWO HORIZONTAL DU(TS require 1 square inch of fl'ee area per 2,000 Bmh (1,100 mm2&W) of combined input _br nil gas
appliances in the space per Fig. 18 and Table 1.
d. TWO OPENINGS OR VERTICAL DUCTS require 1 square inch of flee area per 4,000 Btuh (550 rnm:&W) for combined input of all
gas appliances in the space per Fig. 18 and Table 1.
3. ONE OUTDOOR OPENING requires:
a. 1 square inch of fl'ee area per 3,000 Bmh (734 mm2ikW) _br combined input of all gas appliances in the space per Table 1 and
b. Not less than the sum of the areas of all vent connectors in the space.
The opening shall commence within 12" (300 nun) of the ceiling. Appliances in the space shall have clearances of at least 1" (25 ram)
fl'om the sides and back and 6" (150 ram) from the front. The opening shall directly communicate witl'_ the outdoors or shall communicate
through a vertical or horizontal duct to the outdoors or spaces (crawl or attic) that fleely communicate witl'_ the outdoors.
Indoor Combustion Air_-:>NFPA & AGA
Standard and Known-Air-Infiltration Rate Methods
Indoor air is permitted _br combustion, ventilation, and dilution, if the Standard or Known-Air-Infiltration Method is used.
Z_ WARNmNG: CARBON MONOXIDE POISONING HAZARD
Failure to supply outdoor air via grilles or ducts could result in death and/or personal injury.
Many homes require air to be supplied from outdoors for furnace combustion, ventilation, and dilution of flue gases.
The furnace combustion air supply must be provided in accordance with this instruction manual.
The Standard Method:
1. The space has no tess volume than 50 cubic feet per 1,000 Btuh of the maximtm_ input ratings for all gas appliances installed in the space
and
2. The air infiltration rate is not known to be less than 0.40 air changes per hour (A(H).
The Known Air Infiltration Rate Method shall be used, if the infiltlation rate is known to be:
1. Less than 0.40 ACH and
2. Equal to or greater than 0.10 ACH
Infiltration rates greater than 0.60 ACH shall not be used. The minimum required volume of the space varies with the number of ACH and shah
be determined per Table 2or Equations 1 and 2. Determine the n_iuin-mm required volume for each appliance in the space and add the volumes
together to get the total minin?tm_ required volume _br the space.
Table 3-Minimum Space Volumes were detem_ined by using the following equations from the _\'(_tinna/Fne/Gas ('ode ASS] Z223.1-2002/St:_ 1
54-2002,g.3.2.2:
2O