ICP N8MPN, N8MPL, H8MPN, T8MPN, C8MPL Installation Instructions Manual

N8MPN&N8MPL *8MPN&*8MPL

* Denotes Brands (C, H, T)

See section 5 for Category I definition.

SAFETY REQUIREMENTS

Recognizesafetyinformation. Thisisthesafety--alertsymbol!. Whenyouseethissymbolon thefurnaceand ininstructionmanualsbealert to the potential for personal injury.

Understand thesignalwordsDANGER,WARNING,orCAUTION. Thesewordsareusedwiththesafety--alert symbol. DANGERidentifiesthe mostserioushazards,thosethat will resultinsevere personalinjuryordeath. WARNING signifies ahazardthat couldresultin personalinjuryor death. CAUTION is used toidentify unsafepractices that couldresultinminorpersonalinjuryorproductandproperty damage. Note is usedto highlight suggestions that will result in enhanced installation, reliability, or operation.

Installingandservicingheatingequipment can behazardousdue to gasandelectrical components. Onlytrainedand qualifiedpersonnelshould install, repair, or service heating equipment.

Untrained service personnel can perform basic maintenance functions such as cleaning and replacing air filters. All other operations must be performed by trained service personnel. When working on heating equipment, observe precautions in the literature, on tags, and on labels attached to or shipped with the furnace and other safety precautions that may apply.

Follow all safety codes. In the United States, follow all safety codes including the National Fuel Gas Code (NFGC) ANSI Z223.1--2002/NFPA 54--2002. InCanada,refertotheNational StandardofCanada Natural GasandPropaneInstallationCode(NSCNGPIC) CSAB149.1--00. Wear safety glasses and work gloves. Have fire extinguisher available during start--up and adjustment procedures and service calls.

These instructions cover minimum requirements and conform to existing national standards and safety codes. In some instances, these instructions exceedcertainlocalcodesandordinances,especiallythosethatmaynothavekeptupwithchangingresidential constructionpractices. We require these instructions as a minimum for a safe installation.

International Comfort Products, LLC

Lewisburg, TN 37091

INSTALLER: Affix these instructions on or adjacent to the furnace.

CONSUMER: Retain these instructions for future reference.

Ò

1. Safe Installation Requirements 3...............

2. Installation 4..............................

3. Side Venting 8.............................

4. Combustion & Ventilation Air 9................

5. Gas VentInstallation 12.......................

6. Horizontal Venting 14.........................

7. Masonry Chimney Venting 16...................

8. Gas Supply and Piping 19.....................

!

WARNING

ELECTRIC SHOCK HAZARD Failure to follow safety warnings

exactly could result in serious injury, death, and/or property damage.

Turn Off All Power Before Servicing.

Portions of the textand tables are reprinted from NFPA54 / ANSI Z223.1--2002ã, withpermission of National Fire Protection Association, Quincy, MA 02269 andAmerican Gas Association, Washington, DC20001. This reprinted material isnot the complete and official position of the NFPA or ANSI,on the referenced subject, which is represented only by the standard in its entirety.

Printed in U.S.A. 10/19/2004 441 01 2611 (06)

Table of Contents

9. Electrical Wiring 22.........................

10.Ductwork and Filter (Upflow/Horizontal) 23.......

11.Ductwork and Filter (Downflow) 25.............

12. Checks and Adjustments 29...................

13. Furnace Maintenance 33.....................

14. Sequence of Operation & Diagnostics 34.........

TechSupport and Parts 37.......................

!

CARBON MONOXIDE POISONING AND FIRE HAZARD.

Failuretofollowsafetywarnings exactly could result in serious injury,death, and/or property damage.

This furnace is not designed for use in mobile homes, trailers or recreational vehicles.

WARNING

Ò

START--UP CHECK SHEET

(Keep this page for future reference)

Recommended, but not required. Checklist DOES NOT apply in Canada

Dealer Name: Address: Business Card Here City, State(Province), Zip or Postal Code:

Phone: Owner Name:

Address: City, State(Province), Zip or Postal Code:

Model Number: Serial Number:

Type of Gas: Natural: LP:

Blower Motor H.P.: Supply Voltage: Limit Opens at...(°F) or(°C) Limit Closes at...(°F) or(°C) Which blower speed tap is used?

(Heating)

(Cooling)

Manual Gas Shut--Off Upstream of Furnace/Drip--Leg? YES

Drip--Leg Upstream of Gas Valve? YES NO

Blower Speed Checked? YES NO

All Electrical Connections Tight? YES NO

Gas Valve OK? YES NO

Measured Line Pressure When Firing Unit:

Calculated Firing Rate:(See Checks and Adjustments Section).

Measured Manifold Pressure:

Thermostat OK? YES NO

NO

Temperature of Supply Air: (°F) or(°C) Temperature of Return Air: (°F) or(°C) Rise (Supply Temp.--Return Temp.): (°F) or(°C) Filter Type and Size: Fan “Time ON” Setting: Fan “Time OFF” Setting:

Dealer Comments:

2

Subbase Level? YES NO

Anticipator Set? YES NO Set At?:

Breaker On? YES NO

Date of Installation:

Date of Start--Up:

441 01 2611 06

1. Safe Installation Requirements

!

WARNING

FIRE, EXPLOSION, AND ASPHIXIATION HAZARD Improper adjustment, alteration, service,

maintance or installation could cause serious injury, death and/or property damage.

Installationorrepairsmadeby unqualified persons could result in hazards to you and others. Installation MUST conform with local codes or, in the absence of local codes, with codes of all governmental authorities having jurisdiction.

The information contained in t his manual is intended for use by a qualified service agency that is experienced in such work, is familiar with all precautions and safety procedures required in such work, and is equipped with the proper tools and test instruments.

NOTE: This furnace is design--certified by the CSA International

(formerly AGA and CGA) for installation in the United States and Canada. Refer to the appropriate codes, along with this manual, for proper installation.

· Use only the Type of gas approved for this furnace (see

RatingPlateon unit).Overfiringwill resultinfailure ofheat exchanger and cause dangerous operation. (Furnaces can be converted to LP gas with approved kit.)

· Installthisfurnaceonly in a location andpositionasspeci-

fied in “2. Installation” of these instructions.

· Provideadequatecombustionandventilationairtothefur-

naceasspecifiedin “4.CombustionandVentilationAir” of these instructions.

· Combustionproductsmustbedischargedoutdoors.Con-

nectthisfurnacetoan approved vent systemonly,as specifiedin “5.GasVentInstallation,6.Horizontal Ventingand

7. Masonry Chimney Venting” of these instructions.

· Never test for gas leaks with an open flame. Use a com-

merciallyavailablesoapsolution made specifically for the detectionofleakstocheckallconnections,asspecifiedin “8. Gas Supply and Piping, Final Check” of these instructions.

· Always install furnace to operate within the furnace’s in-

tended temperature--rise range with a duct system which hasanexternalstatic pressurewithintheallowablerange, as specified in “Technical Support Manual” of these in- structions.

· When a furnace is installed so that supply ducts carry air

circulated by the furnace to areas outside the space containingthe furnace,thereturnairshallalsobe handledbya duct(s) sealed to the furnace casing and terminating outside the space containing the furnace.

· Agas--fired furnace for installation in a residential garage

must be installed as specified in “2. Installation” of these instructions.

· This furnace is not to be used for temporary heating of

buildings or structures under construction. See “2. Installation, Item 10”.

· This furnace is NOT approved for installation in mo-

bile homes, trailers or recreation vehicles.

· Seal around supply and return air ducts.

· Install correct filter type and size.

· Unit MUST be installed so electrical components are pro-

tected from direct contact with water.

Safety Rules

Your unit is built to provide many years of s afe and dependable serviceprovidingit is properly installedandmaintained.However, abuse and/or improper use can shorten the life of the unit and create hazards for you, the owner.

A. The U.S. ConsumerProduct Safety Commission encourages

installation of carbon monoxide alarms. There can be various sources of carbon monoxide in a building or dwelling. The sources could be gas--fired c lothes dryers, gas cooking stoves, water heaters, furnaces, gas--fired fireplaces, wood fireplaces, and several other items.

Carbon monoxide can cause serious bodily injury and/or death. Carbon monoxide or “CO” is a colorless and odorless gas produced when fuel is not burned completely or whenthe flame does not receive sufficient oxygen.

Therefore,tohelpalertpeopleofpotentiallydangerouscarbon monoxide levels, you should have a commercially available carbon monoxide alarm that is listed by a nationally recognizedtestingagencyinaccordancewithUnderwritersLaboratories Inc. Standard for Single and Multiple Station Carbon Monoxide Alarms, ANSI/UL 2034 or the CSA 6.19--01 Residential Carbon Alarming Devices installed and maintained in thebuildingordwellingconcurrentlywiththegas--firedfurnace installation(seeNote below).Thealarm shouldbeinstalledas recommended by the alarm manufacturer’s installation instructions.

B. There can be numerous sources of fire or smokein a building

or dwelling. Fire or smoke can cause serious bodily injury, death, and/or property damage. Therefore, in order to alert peopleofpotentiallydangerousfireorsmoke,youshouldhave fireextinguisherandsmokealarmslistedbyUnderwritersLaboratories installed and maintained in the building or dwelling (see Note below).

Note: The manufacturer of your furnace does not test any alarms

and makes no representations regarding any brand or type of alarms.

C. To ensure safeandefficientoperationofyourunit,youshould

do the following:

1. Thoroughly read this manual and labels on the unit. This will help you understand how your unit operates and the hazards involved with gas and electricity.

2. Do not use this unit if any part has been under water. Immediatelycallaqualifiedserviceagencytoinspecttheunitand to replace any part of the control system and any gas control which has been under water.

3. Never obstruct the vent grilles, or any ducts that provide airto theunit.Airmustbeprovidedforpropercombustionand ventilation of flue gases.

441 01 2611 06

3

Frozen Water Pipe Hazard

Ifyour furnace remains off for an extended time, the pipes in your home could freeze and burst, resulting in serious water damage.

!

WARNING

FROZEN AND BURST WATER PIPE HAZARD FaiIure to protect against the risk of freezing could

result in property damage and/or personal injury. Donotleaveyourhomeunattendedforlongperiods

during freezing weather without turning off water supply and draining water pipes or otherwise protecting against the risk of frozen pipes and resultant damage.

Yourfurnaceisdesignedsolelytoprovidea safe and comfortable living environment. The furnace is NOT designed to ensure that water pipes will not freeze. It is equipped with several safety devices that are designed to turn the furnace off and prevent it from restarting in the event of various potentially unsafe conditions.

2. Installation

!

CARBON MONOXIDE POISONING HAZARD. Failure to properly vent this furnace or other

appliances could result in death, personal injury and/or property damage.

If this furnace is replacing a previously commonvented furnace, it may be necessary to resize the existing vent system to prevent oversizing problems for the other remaining appliances(s). SeeVentingand CombustionAirCheckinthe5.Gas Vent Installation section of this instruction.

Location and Clearances

If furnace is a replacement, it is usually best to install the furnace wheretheoldone was. Choose the location or evaluate the existing location based upon the minimum clearance and furnace dimensions (Figure 1 or Figure 2).

!

CARBON MONOXIDE POISONING HAZARD. Failure to follow safety warnings could result in

serious injury, death, or property damage. Do NOT operate furnace in a corrosive

atmosphere containing chlorine, fluorine or any other damaging chemicals which could harm the furnace and vent system, and permit spillage of combustion products into an occupied space.

Refer to 4. Combustion & Ventilation Air section, Contaminated Combustion Air for combustion air evaluation and remedy.

Installation Requirements

1. Install furnace level.

2. ThisfurnaceisNOT to be usedfortemporaryheat of buildings or structures under construction.

3. Install furnace as centralized as practical with respect to the heat distribution system.

4

WARNING

If the structure will be unattendedduring cold weather you should take these precautions.

1. Turnoffthewater supplytothe structureanddrain thewater lines if possible and add an antifreeze for potable water to drain traps and toilet tanks. Open faucets in appropriate areas.

-- o r --

2. Have someone check the structure frequently during cold weather to make sure it is warm enough to prevent pipes from freezing. Instruct them on a service agency to call to provide service, if required.

-- o r --

3. Installareliableremotesensingdevicethatwillnotifysomebody of freezing conditions within the home.

4. Install the vent pipes as short as practical. (See 5. Gas Vent Installation section).

5. DoNOTinstallfurnacedirectlyoncarpeting, tileorothercombustible material other than wood flooring.

6. Maintain clearance for fire safety and servicing. A front clearanceof30² is minimum for access to the burner, controls and filter. See clearance requirements in Figure 1 or Figure 2.

7. Use a raised base if the floor is damp or wet at times.

8. Residential garage installations require:

· Burners and ignition sources installed at least 18² (457

mm) above the floor.

· Furnace must be located or physically protected from

possible damage by a vehicle.

9. Ifthefurnace is tobesuspendedfromthefloorjoistsin abasementoracrawlspaceortheraftersinanattic,it isnecessaryto use steel pipe straps or an angle iron frame to attach the furnace. These straps should be attached to the furnace bottom side with sheet metal screws and to the rafters or joists with bolts. The preferred method is to use an angle iron frame bolted to the rafters or joists.

10. This furnace maybeusedforconstruction heat provided that:

· The furnace is permanently installed with all electrical

wiring,piping,ventingandductinginstalledaccordingto these installation instructions. A return air duct is provided,sealed to the furnace casing, and terminated outside the space c ontaining the furnace. This prevents a negativepressurecondition ascreatedbythe circulating air blower, causing a flame rollout and/or drawing combustion products into the structure.

· The furnace is controlled by a thermostat. Itmay not be

“hot wired” to provide heat continuously to the structure without thermostatic control.

· Clean outside air is provided for combustion. This is to

minimizethecorrosiveeffectsofadhesives, s ealers and otherconstruction materials. Italsopreventstheentrainmentofdrywalldustintocombustionair,whichcancause fouling and plugging of furnace components.

· The temperature of the return air to the furnace is main-

tained between 55° F(13° C) and 80° F(27° C) , with no evening setback or shutdown. The use of the furnace whilethestructureisunderconstruction is deemed to be intermittent operation per our installation instructions.

441 01 2611 06

· The air temperature rise is within the rated rise range on

Furnace

ReturnAir

thefurnace ratingplate,andthefiringratehasbeensetto the rating plate value.

· The filters used to c lean the circulating air during the

construction process must be either changed or thoroughly cleaned prior to occupancy.

· The furnace, ductwork and filters are cleaned as neces-

sarytoremovedrywalldustandconstructiondebris from all HVACsystemcomponentsafter construction is completed.

· Verifyproperfurnaceoperatingconditionsincluding igni-

tion,gas input rate, air temperature rise, and venting according to these installation instructions.

Figure 1

Dimensions and Clearances (N8MPN/L)

TOP

51/

3

61/

2

5

LEFT SIDE

7

21/

131/

4

17/

D

C

8

Plugged starting hole tocutside duct opening

213/

BOTTOM

231/

8

4

265/

1

47/

8

DIMENSIONAL INFORMATION

Furnace

Model

N8MPN/L050B12 N8MPN/L075B12

N8MPN/L075F16

N8MPN100F14

N8MPN/L100F20

N8MPN/L100J22 N8MPN/L125J20 N8MPN/L125J22

Cabinet Bottom

A B C D

151/

2 14

191/8175/

8

223/4211/4115/

MINIMUM CLEARANCES TO COMBUSTIBLE

REAR 0 FRONT (combustion air openings

in furnace and structure)

31/

4

30² Min.

33/

171/

131/

3

4

33

271/

2

241/

2

4

11/

2

A

B

FRONT

Drawing is representative, but some models may vary

41/

16

DIMENSIONS IN INCHES

Return Air

Opening

13/

21/

125/

8

143/

8

H

8

4

J

NOTE: Evaporator “A” coil drain pan dimensions may vary

183/

16

4

J

from furnace duct opening size. Always consult evaporator specifications for duct size requirements.

Furnace is designed for bottom return or side return. Return air through back of furnace is NOT allowed.

Required For Service ALL SIDES Of SUPPLY PLENUM 1² SIDES 0 VENT

Single--Wall Vent 6²

Type B--1 Double--Wall Vent 1² TOP OF FURNACE 1²

*30² clearancerecommendedforcasing removal.

Horizontalposition: Linecontactis permissibleonlybetweenlines formedbyintersectionsoftopandtwosidesof furnace jacket,and buildingjoists, studsorframing.

MATERIALS FOR ALL FURNACES

3²

*24²

281/

2

181/

213/

2

21/

4

J

H

131/

4

8

33/

4

2

RIGHT SIDE

281/

2

253/

4

32

131/

11/

2

7

1

4

171/

3

47/

8

Plugged starting hole tocut side duct opening

265/

3

/

4

35

17/

8

25--23--44a1

441 01 2611 06

5

Figure 2

Furnace

ReturnAir

21/

4

131/

4

TOP

51/

LEFT SIDE

Plugged starting hole tocutside duct opening

Dimensions and Clearances (*8MPN/L Models)

F

3

5

1

33/

4

7337

277/

175/

16

271/

2

321/

8

30² Min.

A

B

2

38

FRONT

MINIMUM CLEARANCES TO COMBUSTIBLE

MATERIALS FOR ALL UNITS

REAR 0 FRONT (combustion air openings

3²

in furnace and structure)

Required For Service

*24²

ALL SIDES Of SUPPLY PLENUM 1² SIDES 0 VENT

Single--Wall Vent 6²

Type B--1 Double Wall Vent 1² TOP OF FURNACE 1²

*30² clearancerecommendedforcasing removal.

Horizontalposition: Linecontactis permissibleonlybetweenlines formedbyintersectionsoftopandtwosidesof furnace jacket,and buildingjoists, studsorframing.

281/

2

181/

33/

4

2

3

/

4

213/

17/

8

D

4

265/

BOTTOM

47/

8

11/

8

2

Drawing is representative some models may vary

231/

C

8

41/

16

DIMENSIONS IN INCHES

DIMENSIONAL INFORMATION

Furnace

Model

*8MPN/L050B12 *8MPN/L075B12

*8MPN/L075F16

*8MPN100F14

*8MPN/L100F20 *8MPN/L100J20

*8MPN/L125J20

*8MPN150J20

* Denotes Brand

Cabinet Top Bottom

A B F C D

151/214 6 13/8125/

191/8175/873/421/8143/

223/4211/491/2115/16183/

8

4

Return Air

Opening

H

J

NOTE: Evaporator “A” coil drain pan dimensions may vary from furnace duct opening size. Always consult evaporator specifications for duct size requirements.

Furnace is designed for bottom return or side return. Return air through back of furnace is NOT allowed.

Furnace Installation

Inspecttheratingplatetobe certainthemodelnumberbegins with “N8MP” or“*8MP”.Thisidentifies the unit as a multi--position furnaceandcan beInstalledina Upflow,HorizontalRight,Horizontal Left or Downflow position.

RIGHT SIDE

1

37

303/

4

291/

1

/

2

175/

11/

2

7

J

21/

4

265/

H

131/

4

213/

4

8

Plugged starting hole to cut side duct opening

2

16

47/

8

40

17/

8

Upflow

No modifications are required for upflow installation. (See

Figure 3)

6

441 01 2611 06

Figure 3

RETURN

AIR

T y pical Upflow Installation

SUPPLY

AIR

VENT

The horizontal furnaces may be installed directly on combustible woodflooringorsupports, however,itisrecommendedforfurther fireprotectioncementboardorsheetmetalisplacedbetweenthe furnace and the combustible wood floor and extend 12² beyond the front of the furnace louver door. (This is a recommendation only, not a requirement).

This furnace MUST NOT be installed directly on carpeting, tile or other combustible material other than wood flooring or supports.

Downflow

GAS SUPPLY

25--23--17

Horizontal

Ifyou purchased a multi--position furnace, it can be installed horizontallyin an attic, basement, crawl space, alcove, or suspended from a ceiling in a basement or utility room in either a right or left airflow position. (see Figure 4)

Horizontally installed furnaces may be vented out the top of the unitoroutthesidefacingup.See“Sideventing” forinstructionsto rotate the vent to the side.

The minimum clearances to combustibles MUST be maintained between the furnace and adjacent construction, as shown in Figure 1 and Figure 2. ONLYthecornerofthecabinetisallowed to contact the rafters as shown in Figure 4. All other clearances

MUST be observed as shown in Figure 1 and Figure 2.

Figure 4

SUPPLY

AIR

Ifthe furnaceisto besuspendedfromthefloorjoistsina basement orcrawlspaceortheraftersinanattic,itis necessary to use steel pipe straps or an angle iron frame to attach the furnace. These straps should be attached to the furnace bottom side with sheet metal screws and to the rafters or joists with bolts. The preferred methodistouse an angle iron frame bolted to the rafters orjoists.

Ifthefurnaceistobeinstalledatgroundlevelinacrawlspace,consult local codes. A concrete pad 1² to 2² thick is recommended.

Thirtyinches(30²)isrequiredbetween thefrontofthe furnaceand adjacent construction or other appliances. This should be maintained for service clearance.

Keep all insulating materials clear from louvered door.Insulating materials may be combustible.

441 01 2611 06

T ypical Horizontal Installation

RETURN

AIR

VENT

GAS SUPPLY

OPTIONAL VENT LOCATION

25-23-18a

!

WARNING

FIRE HAZARD. Failure to install unit on noncombustible subbase

couldresultin death, personalinjuryand/orproperty damage.

Place furnace on noncombustible subbase on downflow applications, unless installing on noncombustible flooring.

If you purchased a Multi--position furnace (*8MP) it may be installed in a downflow configuration, (see Figure 5). The minimumclearancestocombustionconstructionMUST bemaintained between the furnace and adjacent construction, as shown in Figure 1 and Figure 2.

In addition to clearances in Figure 1 and Figure 2, c learance for the vent pipe must be considered.

AsubbaseforcombustiblefloorsMUST beusedwhenthefurnace isinstalledasa downflowoncombustiblematerial. See 11.“Duct- work and Filter” (Downflow Section). The outlet flange must be bent flat for downflow installation.

When installing a four--position furnace in the downflow position (not the *8DNL furnace), the logo is to be repositioned so that it is rightside--up as follows:

T8MPN/L

1. Find the door hardware kit that is stored in the furnace and save it.

2. Carefullyremovelogofromtheoutsideof burnercompartment door and save it.

3. Carefullyremovetwosmallplugbuttonsfromoutsideofblower compartment door and save them.

4. Removetwo thumbscrews from blower compartment door by cutting apart metal retainer washers on inside of door with smalldiagonalcuttingpliers.Theretainer washers will not unscrewfromthethumbscrews.Savethetwothumbscrewsand two plastic washers.

5. Install two thumbscrews in holes at other end of blower compartment door from where thumbscrews were removed.

a. A plastic washer should be on each of the two thumb-

screwsbeforeinsertingthe thumbscrews intotheblower compartment door holes.

b. After inserting each thumbscrew into the proper hole in

the blower door,push a new metal retainer washer onto each thumbscrew as far as it will go.

6. Install newstrip of rubber gasket on inside of blower compartment door on edge that does not already have a gasket.

7. Installlogoretainerpinsintoholesinblowercompartmentdoor from which plug buttons were removed.

8. Installplugbuttonsintoholesin burnercompartmentdoorfrom which logo was removed.

9. Install blower compartment door on furnace with bevel edge and logo at top.

7

10. Install burner compartmentdooron furnacewithbeveledge at bottom.

N8MPN/L, C8MPN/L, H8MPN/L

1. Carefully remove logo from burner compartment door and save it.

2. Turn the logo rightside--up, and install the logo retainer pins into holes in burner compartment door.

3. New labels for rightside--up application on outside of blower compartmentdoormay bepurchasedina kit fromyourdistributor to cover upside--down labels.

locatetheswitch,locate2mountingholesordrillabovetheinducer pressure tap. When drilling the 2 holes make sure to keep the switch and tubing far enough away from the burners or hot surfacesastonot meltthehose,switch,or wires. Topreventpossible kinking of the pressure switch hose, trim the hose to remove excess length.

Note:Whendrillingnewholesmakesuremetalshavingsdonotfall on or in components, as this can shorten the life of the furnace.

Figure 5

T y pical Downflow Installation

Downflow Venting: The combustion venter MUST be rotated to

ventoutthesideforalldownflowinstallations,(seeFigure 5). Bottomventingisnotpermitted.See“Sideventing”forinstructionsto rotatethe venttothe side.Inadditiontorotatingtheventtotheside a Vent Pipe Shield (NAHA002VC) is required to shield the hot vent pipe.

!

WARNING

BURN HAZARD. Vent pipe is HOT and could cause personal injury.

Hot vent pipe is in reach of small children when installed in downflow position.

Install vent pipe shield NAHA002VC.

Pressure Switch Relocation

Ifthe furnaceisinstalledintheupflowposition, thepressureswitch will remain in the same position as installed by the factory unless the inducer is rotated. If the furnace is installed in an orientation that places the pressure switch below the pressure tap on the inducerhousing,thentheswitchMUST be relocated. In order to re-

3. Side Venting

This furnace is shipped from the factory with the venter assembly in an upflow configurations (top vent). The venter assembly can easily be rotated to a side vent configurations for use in upflow, horizontal--flow, or downflow application.

See side venting

for venter rotation

Combustible floor base outlet flange adapter

Vent Shield Kit

Figure 6

RETURN

AIR

VENT

OPTIONAL VENT

SUPPLY

AIR

Furnace with Screws

GAS SUPPLY MUST BE OPPOSITE VENT DISCHARGE SIDE

25--23--19

When using a side vent configuration (side outlet instead of top outlet),it may be necessary to relocatethe pressure switch to the alternatepositionontheoppositeside ofthetop panel. Twoscrew holes are provided at the alternate position. Route the pressure switch tubing so the tubing is not kinked and not touching the hot collector box, venter housing, or motor. It may be necessary to shorten the length of the tubing to properly route the tubing and eliminate kinks.

Rotating the Venter Assembly

1. If gas and electrical power have already been connected to unitshutoff gasandremovepower fromunit.Unscrewscrews onburner compartmentdoorandremoveburnercompartment door. See Figure 6.

2. Disconnectpowerleadstotheventermotorandhosetopressureswitch.Removethree (3) orfour(4)screws which secure the venter to the collector box, (see Figure 7).

3. Cut webbing with a pair of snips holding the vent plate to the cabinetoneither the leftorrightside ofunitdependingonright or left venting as desired. Discard vent plate, (see Figure 6).

8

Vent Plate

Screws (2)

25--23--45

441 01 2611 06

Figure 7

Venter Gasket

Entry

Main Line

25--23--52b

25--23--52c

4. Combustion & Ventilation Air

! CARBON MONOXIDE POISONING HAZARD. Failure to provide adequate combustion and

ventilationaircouldresultindeathand/orpersonal injury.

Use methods described here to provide combustion and ventilation air.

Furnaces require ventilation openings to provide sufficient air for propercombustion and ventilation of flue gases. All duct or open ingsforsupplyingcombustionandventilationairmustcomplywith thegascodes,orin the absenceoflocalcodes,the applicable national codes.

Combustion and ventilation air must be supplied in accordance with one of the following:

1. Section8.3, AirforCombustionandVentilation,of theNational Fuel Gas Code, (NFGC), ANSI Z223.1--2002/NFPA54--2002 in the U.S.,

2. Sections7.2,7.3,7.5, 7.6,7.7,and7.8 of NationalStandardof Canada, Natural Gas and Propane Installation Code (NSCNGPIC), CSA B149.1--00 in Canada,

3. Applicable provisions of the local building code.

When the installation is complete, check that all appliances have adequate combustion air and are venting properly. See Venting AndCombustionAirCheckin“5.GasVentInstallation” Section i n this manual.

Contaminated Combustion Air

Installationsincertainareasortypes ofstructurescould causeexcessive exposure to contaminated air having chemicals or halogens that will result in safety and performance related problems and may harm the furnace. These instances must use only outdoor air for combustion.

Thefollowingareasor types of structuresmaycontainorhave exposure to the substances listed below. The installation must be

441 01 2611 06

WARNING

4. Replace venter gasket (part # 1013540, if needed) to venter assembly with adhesive in the same location as the old one.

5. Rotate venter assembly 90 ° right or left from original location depending on venting configurations.

6. Tightenthe three (3) or four (4) screws that secure the venter assembly to the collector box. Do tighten screws enough to compress venter gasket.

7. Replace power leads to venter motor and reconnect hose to pressure switch.

NOTE:Unused open vent hole must be covered. A VentCover is suppliedwithVentPipeShieldKit NAHA002VC.A5 VentCoveri s availableseparatelyfromyourdistributor,or onecan be fabricated with sheet metal for all side vent installations.

evaluated carefully as it may be necessary to provide outdoor air for combustion.

5

/16² diameter

· Commercial buildings.

· Buildings with indoor pools.

· Furnaces installed in laundry rooms.

· Furnaces installed in hobby or craft rooms.

· Furnaces installed near chemical storage areas.

· Permanent wave solutions for hair.

· Chlorinated waxes and cleaners.

· Chlorine based swimming pool chemicals.

· Water softening chemicals.

· De--icing salts or chemicals.

· Carbon tetrachloride.

· Halogen type refrigerants.

· Cleaning solvents (such as perchloroethylene).

· Printing inks, paint removers, varnishes, etc.

· Hydrochloric acid.

· Sulfuric Acid.

· Solvent cements and glues.

· Antistatic fabric softeners for clothes dryers.

· Masonry acid washing materials.

Outdoor Combustion Air Method

Aspace havinglessthan50cubicfeetper1,000BTUHinputrating forallgasappliancesinstalledin thespacerequiresoutdoorairfor combustion and ventilation.

Air Openings and Connecting Ducts

1. Total input rating for all gas appliances in the space MUST be considered when determining free area of openings.

2. Connect ducts or openings directly to the outdoors.

3. When screens are used to cover openings, the openings MUST be no smaller than

4. The minimumdimensionof air ducts MUST NOT be less than 3² .

5. Whensizingagrille,louverorscreenusethefreeareaofopening. If free area is NOT stamped or marked on grill or louver, assumea20%freeareafor woodand60%for metal. Screens shall have a mesh size not smaller than

1

/4² mesh.

1

/4².

9

Requirements

BTU

H

1. Providethespacewithsufficientairforpropercombustionand ventilation of flue gases using horizontal or vertical ducts or openings.

2. Figure 8illustrateshowtoprovidecombustionand ventilation

airwhentwopermanentopenings,oneinletandone outlet,are used.

a. One opening MUST commencewithin12² of the floor

and the second opening MUST commence within 12² of the ceiling.

b. Size openings and ducts per Table 1.

Figure 8

Outside Air (This is ONLY a guide. Subject to codes of country having jurisdiction.)

This installation NOT approved in Canada

Gas Vent

Minimum OneInlet and One Outlet AirSupply isRequired

Inlet Air OpeningMust be Within12²(300mm) of floor Outlet Air OpeningMust be Within12²(300mm) of ceiling (1) 1 Square Inch(6cm (2) 1 Square Inch(6cm

VentilatedAttic

TopAbove Insulation

Outlet Air (1)

Furnace

VentilatedCrawl Space

May bein and Combination Shown

2 2

c. Horizontal duct openings require 1 square inch of free

areaper2,000BTUH(1,100mm2/kW)ofcombinedinput for all gas appliances in the space (see Table 1).

d. Verticalduct openings oropeningsdirectlycommunicat-

ing with the outdoors require 1 square inch of free area per4,000 BTUH (550 mm gas appliances in the space (see Table 1).

3. When one permanent outdoor opening is used, the opening requires:

a. 1 sq. in of free area per 3,000 BTUH (700 mm

combined input of all gas appliances in the space (see Table 1) and

Gable Ve nt

Inlet Air (1)

) per 4000BTUH ) per 2000BTUH

Optional InletAir (1)

Soffit Vent

2

/kW)for combined input of all

b. notlessthanthesumoftheareasofallventconnectorsin

the space.

The opening shall commence within 12² of the top of the enclosure.Appliancesshallhaveclearancesofatleast1² fromthesides andbackand6² from the front.Theopeningshalldirectly commu-

Table 1

Input

Rating

50,000 25 sq. in. 16.7 sq. in. 12.5 sq. in. 4²

75,000 37.5 sq. in. 25 sq. in. 18.75 sq. in. 5² 100,000 50 sq. in. 33.3sq.in. 25 sq. in. 6² 125,000 62.50 sq. in. 41.7 sq. in. 31.25 sq. in. 7² 150,000 75 sq. in. 50 sq. in. 37.5 sq. in. 7²

EXAMPLE: Determining Free Area

Furnace 100,000 Furnace 100,000

Free Area

TwoHorizontal Ducts

(sq. in./2,000 BTUH)

Water Heater

+

30,000

Water Heater

30,000

10

Gable Ve nt

Soffit Vent

Inlet Air (2)

Outlet Air (1)

Inlet Air (1)

Gas Vent

VentilatedAttic

TopAbove Insulation

Outlet Air (1)

Furnace

nicatewiththeoutdoorsorshallcommunicatethroughaverticalor horizontalductto the outdoorsorspaces(crawlor attic)thatfreely communicate with the outdoors.

4. Combination of Indoor and Outdoor Air shall have: a. Indoor openings that comply with the Indoor Combus-

tion Air Method below and

b. Outdoor openings located as required in the Outdoor

Combustion Air Method above and

2

/kW) for

c. Outdoor openings sized as follows.

1) Calculate the Ratio of all Indoor Space volume dividedby requiredvolumeforIndoorCombustionAirMethod. Outdoor openings sized as follows.

2) Outdooropeningsizereduction Factor is1 minusthe Ratio in 1) above.

3) Minimum size of Outdoor openings shall be the size required in Outdoor Combustion Air Method above multiplied by reduction Factor.

Minimum FreeAreaRequiredfor Each Opening or Duct to Outdoors

Single Opening

(sq. in./3,000 BTUH)

Total Input

=

(130,000 ¸ 4,000)

Total Input

=

(130,000 ¸ 2,000)

==32.5 Sq. In. Vertical

65 Sq. In. Horizontal

Gas Vent

Furnace

TwoVertical Ducts or Openings

(sq. in./4,000BTUH)

Outlet Air (2)

Inlet Air (2)

Round Duct

(sq. in./4,000

BTUH)

441 01 2611 06

Indoor Combustion Air

Standard and Known--Air--Infiltration Rate Methods

ã NFPA&AGA

Indoor air is permitted for combustion and ventilation, if the Standard or Known--Air--Infiltration Rate Method is used.

!

CARBON MONOXIDE POISONING HAZARD. Failure to supply adequate combustion air could

result in death and/or personal injury. Mosthomeswillrequireadditionalairfrom outdoors

for combustion and ventilation. A space with atleast

WARNING

The Standard Method may be used, if the space has no less volumethan50cubicfeetper1,000BTUHof the maximum input ratings for all gas appliances installed in the space. The standard method permits indoor air to be used for combustion and ventilation air.

The Known Air Infiltration Rate Method shall be used if the infiltration rate is known to be less than 0.40 air c hanges per hour (ACH) and 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 shall be determined per Table 2 or Equations 1 and 2. Determine the minimum required volume for each appliance in the space, and add the volumes together to get the total minimum required volume for the space.

50 cubic feet per 1,000 BTUH input rating or homes with tight construction may need outdoor air to supplement air infiltration for proper combustion and ventilation of flue gases.

MINIMUM SPACE VOLUME FOR 100% COMBUSTION AND VENTILATION AIR FROM INDOORS (ft3)

Table 2

ACH

0.60 1,050 1,400 1,750 1,250 1,875 2,500 3,125 3,750

0.50 1,260 1,680 2,100 1,500 2,250 3,000 3,750 4,500

0.40 1,575 2,100 2,625 1,875 2,813 3,750 4,688 5,625

0.30 2,100 2,800 3,500 2,500 3,750 5,000 6,250 7,500

0.20 3,150 4,200 5,250 3,750 5,625 7,500 9,375 11,250

0.10 6,300 8,400 10,500 7,500 11,250 15,000 18,750 22,500

0.00 NP NP NP NP NP NP NP NP

Other Than Fan-Assisted Total

(1,000’sBtuh)

30 40 50 50 75 100 125 150

Fan-assistedTotal

(1,000’sBtuh)

NP = Not Permitted Table 2MinimumSpaceVolumesweredetermined by usingthe

following equations from the National Fuel Gas Code ANSI Z223.1/NFPA 54--2002, 8.3.3.2:

1. For other than fan--assisted appliances such as a draft hood--equipped water heater,

(

1000 Btu / hr

(

1000 Btu / hr

I

other

fan

)

3

Volume

other

2. For fan--assisted appliances such as this furnace,

Volume

If:

I

ACH = air changes per hour (ACH shall not exceed 0.60.)

The following requirements apply to the Standard Method and to the Known Air Infiltration Rate Method.

=

fan

= combined input of all other than fan--assisted

other

appliances in Btu/hr

=combinedinputofallfan--assisted appliancesinBtu/hr

fan

21 ft

=

ACH

3

15 ft

ACH

· Adjoining rooms can be considered part of a space, if there

are no closable doors between rooms.

· An attic orcrawlspacemaybeconsidered a space thatfreely

communicateswiththeoutdoorsprovidedthereareadequate ventilationopeningsdirectly tooutdoors.Openings MUST remainopenandNOThaveanymeansofbeingclosed off.Ven-

tilation openings to outdoors MUST be at least 1 square inch offreeareaper4,000BTUH of totalinputratingforall gas appliances in the space.

· In spaces that use the Indoor Combustion Air Method, in-

filtration should be adequate to provide air for combustion, ventilation and dilution of flue gases. However, in buildings withunusuallytightconstruction,additional air MUST beprovided using the methods described in section titled Outdoor Combustion Air Method:

· Unusually tight construction is defined as Construction with:

1. Wallsand ceilings exposed to the outdoors have a continuous,sealed vapor barrier.Openingsaregasketed or sealed and

2. Doors and openable windows are weather stripped and

3. Other openings are caulked or sealed. These include joints around window and door frames, between sole plates and floors, between wall--ceiling joints, between wall panels, at penetrations for plumbing, electrical and gas lines, etc.

Ventilation Air

Someprovincialcodesandlocal municipalities requireventilation ormake--up airbe brought into the conditioned space asreplacementair.Whichevermethodisused,the mixedreturnairtemperature across the heat exchanger MUST not fall below 60° continuously,or55° onanintermittentbasis so that flue gases will not condense excessively in the heat exchanger.Excessive condensation will shorten the life of the heat exchanger and possibly void your warranty.

441 01 2611 06

11

5. Gas Vent Installation

!

CARBON MONOXIDE POISONING, FIRE AND EXPLOSION HAZARD.

Failure to properly vent this furnace could result in death, personal injury and/or property d amage.

Read and follow all instructions in this section.

Install the vent in compliance with codes of the country having jurisdiction, local codes or ordinances and these instructions.

This Category I furnace is fan--assisted. Afan assisted appliance isanapplianceequipped withanintegralmechanicalmeans toeither draw or force products of combustion through the heat exchanger.

Category I furnace definition: A central furnace which operates with a non--positive vent static pressure and with a flue loss not lessthan17percent. These furnaces are approved forcommon-venting and multi--story venting with other fan--assisted or draft hood--equipped appliances in accordance with the NFGC or NSCNGPIC

Category I Safe Venting Requirements

Category I furnace vent installations shall be in accordance with Parts 10 and 13 of the National Fuel Gas Code (NFGC), ANSI Z223.1--2002/NFPA54 --2002;and/orSection7andAppendixCof the CSA B149.1--00, National Standard of Canada, Natural Gas and Propane Installation Code; the local building codes; furnace and vent manufacturer’s instructions.

NOTE: The following instructions comply with the ANSI Z223.1/NFPA54 National Fuel Gas Code and CSA B149.1Natural Gas and Propane Installation code, based on the input rate on the furnace rating plate.

1. If a Category I vent passes through an attic, any concealed space or floor, use ONLY Type B or Type L double wall vent pipe.Ifventpipepasses through interior wall, useTypeB vent pipe with ventilated thimble ONLY.

2. Do NOT vent furnace into any chimney serving an open fireplace or solid fuel burning appliance.

3. Use the same diameter Category I connector or pipe as permitted by:

· the National Fuel Gas Code Code (NFGC) ANSI

· the NationalStandard of Canada Natural Gas and Pro-

4. Push the vent connector onto the furnace flue collar of the venterassemblyuntilittouchesthebead(atleast and fasten with at least two field--supplied, corrosion--resistant, sheet metal screws located at least 140° apart.

5. Keep vertical Category I vent pipe or vent connector runs as short and direct as possible.

6. Verticaloutdoor runs of Type--B or ANY single wall vent pipe below the roof line are NOT permitted.

7. Slopeallhorizontalruns upfromfurnace totheventterminal a minimum of

WARNING

Z223.1--2002 / NFPA54--2002 sections 10 and 13 venting requirements in the United States

or

pane Installation Code (NSCNGPIC) CSA B149.1--00 section7andappendixCventing requirements inCanada.

5

/8² overlap)

1

/4² per foot (21 mm/m).

8. Rigidlysupportallhorizontalportionsoftheventingsystemevery6¢ orlessusingproperclampsandmetalstrapsto prevent sagging and ensure there is no movement after installation.

9. Checkexistinggas ventorchimneyto ensuretheymeetclearances and local codes. See Figure 1

10. The furnace MUST be connected to a factorybuilt chimney or vent complying with a recognized standard, or a masonry or concretechimneylined withaliningmaterialacceptable tothe authority having jurisdiction. Venting into an unlined ma-

sonrychimneyor concretechimneyis prohibited.Seethe

6. Masonry Chimney Venting section in these instructions.

11. Fan--assisted combustion system Category I furnaces shall not be vented into single--wall metal vents.

12. Category I furnaces must be vented vertically or nearly vertically, unless equipped with a listed mechanical venter.

13. VentconnectorsservingCategoryIfurnaces shallnotbeconnectedintoanyportionofmechanical draft systems operating under positive pressure.

A4--to-- 3 inchreducerispermitted attheflue collarwheninstalling a50,000Btuhgasinputfurnace, iftheinstallationmeets allthefollowing requirements for sizing the vent connectors and vents:

1. The National Fuel Gas Code, ANSI Z223.1/NFPA--54--2002, sections 10.5.3.1(1),

10.6.3.1(2), 10.10.3.1, 13.1.2, 13.1.10, and 13.2.21(1) through (3) in the U.S. or

2. The Natural Gas and Propane Installation Code CSA B149.1--00, sections 7.13.1(b), 7.13.2(b), 7.18.5(b), and Appendix C--GVR no. 2. in Canada.

12

441 01 2611 06

Venting and Combustion Air Check

NOTE: When an existing Category I furnace is removed or replaced,theoriginalventingsystemmaynolongerbesizedtoprop erly vent the attached appliances, and to make sure there is adequate combustion air for all appliances, MAKE THE FOL-

LOWING CHECK.

Figure 9

Typical Gas Water Heater

Vent Check

Draft HoodVent Pipe

Match

!

CARBON MONOXIDE POISONING HAZARD Failure to follow the steps outlined below for each

applianceconnectedtothe venting systembeingplaced into operation, could result in carbon monoxide poisoning or death:

The followingsteps shall be followed for each appliance connected to the venting system being placed into operation, while all other appliances connected to the venting system are not in operation:

1.Seal any unused openings in the venting system.

2.Inspect the venting system for proper size and horizontal pitch, as required in the National Fuel Gas Code, ANSI

Z223.1/NFPA 54 or CSA B149.1, Natural Gas and Propane Installation Code and these instructions. Deter -

minethatthereisnoblockageorrestriction,leakage,corrosionandotherdeficiencieswhichcouldcauseanunsafe condition.

3.As far as practical, close all building doors and windows andalldoors between thespaceinwhich theappliance(s) connected to the venting system are located and other spaces of the building.

4.Close fireplace dampers.

5.Turnonclothesdryersandanyappliancenotconnectedto the venting system. Turn on any exhaust fans, such as range hoods and bathroom exhausts, so they are operating at maximum speed. Do not operate a summer exhaust fan.

6.Followthelightinginstructions.Place the appliance being inspected into operation. Adjust the thermostat so appliance is operating continuously.

7.Test for spillage from draft hood equipped appliances at thedraft hoodreliefopeningafter5minutesof mainburner operation.Use the flame of a matchor candle. (Figure 9)

8.If improper venting is observed, during any of the above tests,the ventingsystemmustbecorrectedinaccordance with the National Fuel Gas Code, ANSI Z223.1/NFPA 54 and/orCSAB149.1,NaturalGasand PropaneInstallation Code.

9.After it has been determined that each appliance con nected to the venting system properly vents when tested as outlined above, return doors, windows, exhaust fans, fireplace dampers and any other gas--fired burning appliance to their previous conditions of use.

WARNING

NOTE: If flame pulls towards draft hood, this indicates

sufficient infiltration air.

Venting to Existing Masonry Chimney

Dedicated venting of one fan assisted furnace into any masonry chimney is restricted. A chimney must first be lined with

either Type B vent sized in accordance with NFGC tables 13.1 or

13.2 or a listed, metal lining system, or venting into a masonry chimneyispermittedasoutlinedwith use of an optional listed masonry chimney kit. (See Section 7 Masonry Chimney Venting of these instructions.)

Listed, corrugated metallic chimney liner systems in masonry chimneysshallbesizedbyusing NFGC tables per13.1.7fordedicated venting and per 13.2.19 for common venting with the maximum capacity reduced by 20% (0.80 X maximum capacity) and theminimumcapacityasshownintheapplicabletable.InCanada, use the NSCNGPIC, appendix C, section 10. Corrugated metal vent systems installed with bends or offsets require additional reductionof 5%oftheventcapacityforeach bendupto45° and10% of the vent capacity for each bend from 45° up to 90°.

NOTE:Two(2)45° elbows are equivalent to one (1) 90° elbow.

Combined Venting into a Masonry Chimney

Ventingintoamasonryorconcretechimneyisonlypermitted as outlined in the NFGC or NSCNGPIC venting tables. Follow

all safe venting requirements.

Note: See section “7. Masonry Chimney Venting”.

441 01 2611 06

13

6. Horizontal Venting

Category I Furnaces With External Power Venters

InordertomaintainaCategory Iclassificationof fan--assistedfurnaceswhenventedhorizontallywithsidewalltermination,apower venter is REQUIRED to maintain a negative pressure in the venting system.

In the U.S.: Per the NFGC, a listed power venter may be used, when approved by the authority having jurisdiction.

In Canada: Only power venters approved by the appliance manufacturer and where allowed by the authority having jurisdiction may be used

PleaseconsulttheFieldsControlsCo. or Tjernlund Products, Inc. for power venters certified for use with our furnaces.

Vent Termination

VentingThrough a Non--Combustible and Combustible Wall

Consult External Power Venter manufacturer instructions.

SelectthepowerventertomatchtheBtuhinputofthefurnacebeingvented. Followallof thePowerVenter manufacturer’s installation requirements included with the power venter for:

· venting installation,

· vent terminal location,

· preventing blockage by snow,

· protecting building materials from degradation by flue gases,

· see Figure 1 0 for required vent termination.

NOTE: It is the responsibility of the installer to properly terminate theventandprovideadequateshielding. This is essential inorder to avoid water/ice damage to building, shrubs and walkways.

14

441 01 2611 06

Figure 10

Other than Direct Vent Termination Clearance

N

V

D

E

V

B

V

C

F

B

V

VENT TERMINAL

Item Clearance Descriptions Canadian Installation(1)

A Clearance above grade, veranda, porch,deck,balcony,or

anticipated snow level

B Clearance to awindowor door that may be opened 6² (15 cm) forappliances £ 10,000 BTUH (3kW), 12² (30

C Clearance toapermanently closed window D Verticalclearance toa ventilated soffitlocatedabovethe ter-

minal within a horizontal distance of 2¢ (61cm) from thecenterline of theterminal

E Clearance to anunventilated soffit F Clearance to anoutsidecorner G Clearancetoan inside corner H Clearance toeachside ofthecenterline extended above elec-

trical meter or gas service regulator assembly

I Clearance to service regulator vent outlet 3¢ (91cm)

J Clearance tonon--mechanical air supply inlet to building or the

combustion air inlet to anyotherappliance

K Clearance to amechanical air supply inlet 6¢ (1.83 m) 3¢ (91cm)aboveif within 10¢ (3mhorizontally) L Clearance under a veranda, porch, deck, orbalcony 12² (30 cm) +

M Clearanceto eachsideofthe centerline extended above or

below vent terminal of thefurnace toadryer or water heater vent, or otherappliance’s direct vent intake or exhaust.

N Clearance from aplumbingventstack 3¢ (91cm) 3¢ (91cm)

(1.) In accordance with the current CSAB149.1,Natural Gas andPropane Installation Code (2.) In accordance with the currentANSIZ223.1/NFPA54, National Fuel Gas Code #18² (46cm)aboveroof surface + Permitted only if veranda, porch, deck, or balcony is fully open ona minimum of twosides beneath thefloor.

B

V

B

X

AIR SUPPLYINLET

12² (30cm) # 12² (30cm)

cm) for appliances > 10,000Btuh(3 kW) and£ 100,000 Btuh (30kW),36² (91 cm) for appliances > 100,000Btuh(30 kW)

* * * *

* * * * * *

3¢ (91cm) within15¢ (4.5 m) above the meter/regulator assembly

6² (15 cm) forappliances £ 10,000 BTUH (3kW), 12² (30 cm) for appliances > 10,000Btuh(3 kW) and £ 100,000 Btuh (30kW),36² (91 cm) for appliances > 100,000 Btuh (30kW)

* *

B

X

J

A

H

I

L

K

AREA WHERE TERMINAL ISNOTPERMITED

G

X

V

4¢ (1.2m) below ortothe side of the opening. 1¢ (30 cm) above theopening.

3¢ (91cm) within15¢ (4.5 m)abovethe meter/regulator assembly

*

4¢ (1.2m) below ortothe side of opening: 1¢ (30cm) above opening.

*

M

A

V

25--24--65--2

U.S. Installation (2)

* For clearances not specified in ANSI Z223.1/NFPA 54orCSA B149.1, clearances shall be inaccordancewithlocalinstallation codes andtherequirements of thegassupplier and themanufacture’s

installation instructions.

Notes:

1. The ventforthis appliance shall not terminate a. Over public walkways; or b. Near soffit vents orcrawlspacevents or otherareaswhere condensate orvapor could create anusiance or hazard orpropertydamage; or c. Where condensate vapor could cause damage or could bedetrimental to theoperationof regulators, relief valves, or other equipment.

2. When locatingvent terminations,considerationmust begivento prevailingwinds,location, andother conditions which may causerecirculation of thecombustiob products of adjacent vents. Recirculation can cause poor combustion, inlet condensate problems, and accelerated corrosion of the heatexchangers.

441 01 2611 06

15

7. Masonry Chimney Venting

Chimney Inspection

All masonry chimney construction must conform to Standard ANSI/NFPA211--2003 and to any state or local codes applicable. The chimney must be in good condition and a complete chimney inspectionmustbeconductedpriortofurnace installation.Iftheinspection reveals damage or abnormal conditions, make necessary repairs or seek expert help. See Figure 11 “The Chimney Inspection Chart”. Measure inside area of tile --liner and exact height of chimney from the top of the c himney to the highest appliance flue collar or drafthood outlet.

Connector Type

To reduce flue gas heat loss and the c hance of condensate problems, the vent connector must be double--wall Type B vent.

VentingRestrictions for Chimney Types

Interior Chimney -- has no sides exposed to the outdoors below the roofline. All installations can be single furnace or common vented with another draft hood equipped Category I appliance.

Exterior Chimney -- has one or more sides exposed to the outdoors below the roof line. All installations with a 99% Winter Design Temperature*below17°F must be common vented only with a draft hood equipped Category I appliance.

The 99% Winter Design Dry--Bulb (db) temperatures are found in the

*

1993 ASHRAE Fundamentals Handbook, Chapter 24, Table 1 (United States)and2(Canada),orusethe99.6% heatingdb temperaturesfound in the 1997 or 2001 ASHRAE Fundamentals Handbook, Climatic Design Information chapter, Table 1A (United States) and 2A (Canada).

!

CARBON MONOXIDE POISONING, FIRE AND EXPLOSION HAZARD.

Failure to properly vent this furnace could result in death, personal injury and/or property d amage.

These furnaces are CSA (formerly AGA and CGA) design--certified for venting into exterior clay tile--lined masonry chimneys with a factory accessory Chimney Adapter Kit. Refer to the furnace rating plate for correct kit usage. The Chimney Adapter Kits are for use with ONLY furnaces having a Chimney Adapter Kit number marked on the furnace rating plate.

WARNING

Ifa claytile--linedmasonrychimneyisbeingusedanditisexposed to the outdoors below the roof line, relining might be required. Chimneys shall conform to the Standard for Chimneys, Fireplaces, Vents, and Solid Fuel Burning Appliances ANSI/NFPA 211--2003 in the United States and to a Provincial or Territorial Building Code in Canada (in its absence, the National Building Code of Canada) and must be in good condition.

U.S.A.--Refer toSections13.1.9or13.2.20ofthe NFGCortheauthorityhavingjurisdictiontodeterminewhetherreliningisrequired. If relining is required, use a properly sized listed metal liner, Type--B vent, or a listed alternative v enting design.

NOTE: See the NFGC, 13.1.9 and 13.2.20 regarding alternative venting design and the exception, which cover installations such as the Chimney Adapter Kits NAHA001DH and NAHA002DH.

The Chimney Adapter Kits are listed alternative v enting designs for these furnaces. See the kit instructions for complete details.

Canada(and U.S.A.)--Thisfurnaceispermittedtobeventedintoa clay tile--lined masonry chimney that is exposed to the outdoors below the roof line, provided:

1. Ventconnector is Type--B double--wall, and

2. This furnace is common vented with at least 1 draft hood-equipped appliance, and

3. The combined appliance input rating is less than the maximum capacity given in Table A, and

4. Theinputratingofeachspace--heatingapplianceisgreater than the minimum input rating given in Table B for Masonry Chimneys for the local 99% Winter Design Temperature. Chimneys having internal areas greater than 38 square inches require furnace input ratings greater than the input ratingsofthesefurnaces. SeefootnoteatbottomofTableB, and

5. The authority having jurisdiction approves.

Ifall of these conditions cannot be met, an alternative venting design shall be used, such as the listed chimney adapter kit with a furnace listed for use with the kit, a listed chimney--lining system, or a Type--B vent.

These furnaces are CSA design--certified for use in exterior clay tile--lined masonry chimneys with a factory accessory Chimney AdapterKit. Refer to the furnace ratingplateforcorrectkitusage. The Chimney Adapter Kits are listed alternative v enting designs andarefor use withONLY furnaces having aChimneyAdapterKit number marked on the furnace rating plate.

16

441 01 2611 06

Figure 11

CHIMNEY INSPECTION CHART

ForadditionalrequirementsrefertotheNationalFuelGasCodeNFPA54/ANSIZ223.1--2002andANSI/NFPA211--2003Chimneys,Fireplaces, Vents,andSolidFuel BurningAppliancesin the U.S.A. or to the Canadian InstallationCodeCSAB149.1--00 in Canada.

Crown

condition:

Missingmortar

or brick?

No

Is

Chimney properly lined

with clay tile

liner?

Yes

Is liner and top seal in good

condition

Yes

Debris in

cleanout? Mortar,tile,

metal vent, fuel oil

residue?

No

Yes

No

Repair

No

liner or topseal

or reline chimney as

necessary.

Yes

Remove metal vent orliner.

Repair

Rebuild

crown

Mortar or

tile debris?

Reline

No

Yes

Remove mortar

and tile debris?

Clay tile misalignment, missingsections,

gaps?

No

Condensate

drainage at bottom

of chimney?

No

Chimney

exposed to outdoors

below roof line?

No

Chimneyis

acceptable for use

Yes

No

Is Chimney

lined with properly

sized, listed liner or

Type--B vent?

Yes

Is Chimney to

be dedicated toa

single furnace?

Consult

Part B ofchimney

adapter venting instructionsfor

application

suitability.

Suitable

Yes

Install chimney

adapter per

instructions.

No

Not Suitable

Consult

Part C ofchimney

adapter venting

instructionsfor

application

suitability.

Line chimney with properly

sized, listed flexible metal

liner or Type--B vent per NFGC or

NSCNGPIC VentSizing Tables

and liner orventmanufacturer’s

installation instructions.

Suitable

Install chimney

adapter per

instructions.

441 01 2611 06

17

Exterior Masonry Chimney,

G

6

o

7

o

5

4

t

1

o

r

FAN+NAT Installations with

Type--B Double--Wall Vent Connectors

ã

ã NFPA&AGA

ãã

Table A--

Combined Appliance

Maximum Input Rating in

Thousands of Btu per Hr

VENT

HEIGHT

(FT)

6 74 119 178 257

8 80 130 193 279 10 84 138 207 299 15 NR 152 233 334 20 NR NR 250 368 30 NR NR NR 404

INTERNAL AREA OF CHIMNEY

(SQ IN.)

12 19 28 38

Table B--

Minimum Allowable Input Rating of

Space--Heating Appliance in

Thousands of Btu per Hr

VENT

HEIGHT

(FT)

Local 99% Winter Design Temperature: 17 to 26°°°° F*

6 0 55 99 141

°

°F

°

8 52 74 111 154

6

10 NR 90 125 169

o2

15 NR NR 167 212

7t

1

20 NR NR 212 258 30 NR NR NR 362

Local 99% Winter Design Temperature: 5 to 16°°°° F*

6 NR 78 121 166 8 NR 94 135 182

°

°F

°

16

10 NR 111 149 198 15 NR NR 193 247

5t

20 NR NR NR 293 30 NR NR NR 377

Local 99% Winter Design Temperature: --10 to 4°°°° F*

6 NR NR 145 196

°

°F

°

8 NR NR 159 213

4

10 NR NR 175 231

to

15 NR NR NR 283

10

--

20 NR NR NR 333 30 NR NR NR NR

-- 1 1 °°°° F lower

Local 99% Winter Design Temperature: --11°°°° For

or

INTERNAL AREA OF CHIMNEY

(SQ IN.)

12 19 28 38

lower*

Not recommended for any vent configuration

* The 99% Winter Design Dry--Bulb (db) temperatures are found in the

1993 ASHRAE Fundamentals Handbook, Chapter 24, Table 1 (United States) and 2 (Canada), or use the 99.6% heating db temperaturesfound in the 1997 or 2001 ASHRAE Fundamentals Handbook, Climatic Design Information chapter, Table 1A (United States) and 2A (Canada).

Inspectionsbeforethesaleandatthetimeofinstallationwilldeterminetheacceptabilityofthechimney or the need for repair and/or (re)lining. Refer to the Chimney Inspection Chart to perform a chimney inspection.

18

If the inspection of a previously used tile--lined chimney:

a. Showssignsof ventgascondensation,thechimneyshould

be relined in accordance with local codes and the authority having jurisdiction. The chimney should be relined with a listed metal liner, Type--B vent, or a listed chimney adapter kittoreducecondensation. Ifacondensatedrainisrequired bylocalcode,refer totheNFGC,Section 10.9foradditional information on condensate drains.

b. Indicates the chimney exceeds the maximum permissible

sizeinthe tables, thechimneyshould berebuiltorrelined to conform to the requirements of the equipment being installed and the authority having jurisdiction.

Achimneywithoutaclaytileliner,which is otherwise in good condition,shallberebuilttoconformtoANSI/NFPA211orbelinedwith a UL listed (ULC listed in Canada) metallinerorULlistedType--B vent. Relining with a listed metal liner or Type--B vent is considered to be a vent--in-- a--chase.

If a metal liner or Type--B vent is used to line a chimney,no other appliance shall be vented into the annular space between the chimney and the metal liner.

APPLIANCE APPLICATION REQUIREMENTS

Appliance operation has a significant impact on the performance of the venting system. If the appliances are sized, installed, adjusted, and operated properly, the venting system and/or the appliances should not suffer from condensation and corrosion. The ventingsystemandallappliancesshall beinstalledinaccordance with applicable listings, standards, and codes.

The furnace should be sized to provide 100 percent of the design heating load requirement plus any margin that occurs because of furnace model size capacity increments. Heating load estimates can be made using approved methods available from Air Conditioning Contractors of America (Manual J); American Society of Heating, Refrigerating, and Air--Conditioning Engineers; or other approved engineering methods. Excessive oversizing of the furnace could cause the furnace and/or vent to fail prematurely.

Whena metalventormetallinerisused,thevent orlinermustbein goodcondition andbeinstalled inaccordancewiththevent orliner manufacturer’s instructions.

To prevent condensation in the furnace and vent system, the following precautions must be observed:

1. Thereturn--airtemperaturemustbe at least60°Fdbexcept forbriefperiodsoftimeduringwarm--up from setback atno lower than 55°F db or during initial start--up from a standby condition.

2. Adjust the gas input rate per the installation instructions. Lowgas inputrate causeslowventgastemperatures,causing condensation and corrosion in the furnace and/orventing system. Derating is permitted only for altitudes above 2000¢.

3. Adjust the air temperature rise to the midpoint of the rise rangeorslightly above. Lowairtemperaturerisecancause low vent gas temperature and potential for condensation problems.

4. Set the thermostat heat anticipator or cycle rate to reduce short cycling.

Air for combustion must not be contaminated by halogen compoundswhichincludechlorides,fluorides, bromides, andiodides. These compounds are found in many common home products suchas detergent,paint,glue,aerosolspray,bleach,cleaningsolvent,salt, and air freshener, and can cause corrosion of furnaces and vents. Avoidusing such products in the combustion--air supply. Furnace use during construction of the building could cause thefurnace tobe exposedtohalogencompounds,causingpremature failure of the furnace or venting system due to corrosion.

441 01 2611 06

Vent dampers on any appliance connected to the common vent

GasT

cancausecondensationandcorrosion in the venting system. Do notuseventdamperson appliances common ventedwiththisfurnace.

8. Gas Supply and Piping

!

WARNING

CARBON MONOXIDE POISONING, FIRE AND EXPLOSION HAZARD.

Failure to follow safety warnings exactly could result in serious injury, death, and/or property damage.

Models designated for Natural Gas are to be used withNaturalGasONLY,unlessproperlyconvertedto use with LP gas.

Gas Supply Requirements

· UseonlytheTypeofgas approvedforthis furnace.Seerating

plate for approved gas type.

· Gasinputmustnotexceedthe ratedinputshownonthe rating

plate. Overfiring will result in failure of heat exchanger and cause dangerous operation.

· Donotallowminimumsupplypressuretovarydownward. Do-

ingso will decrease input to furnace. Refer to Table 3 for gas supply. Refer to Table 7 and Table 8 for manifold pressures.

Table 3 Gas Pressures

!

WARNING

FIRE HAZARD Failure to follow safety warnings exactly could

result in serious injury, death, and/or property damage.

Use wrench to hold furnace gas control valve when turning elbows and gas line to prevent damage to the gas control valve and furnace.

Figure 12

Typical Gas Piping (N8MP)

Manual Equipment Shutoff Valve

Left entry

Union

ype

Natural 7² 14² 4.5²

Propane 11² 14² 11²

Recommended Max. Min.

Supply Pressure

Gas Piping Requirements

NOTE:Thegassupplylinemustbeinstalledbya qualifiedservice technician in accordance with all building codes.

NOTE: In the state of Massachusetts.

a. Gas supply connections MUST be performed by a li-

censed plumber or gas fitter).

b. Whenflexibleconnectorsare used, the maximumlength

shall not exceed 36² (915 mm).

c. When lever handle type manual equipment shutoff

valves are used, they shall be T--handle valves.

d. TheuseofcoppertubingforgaspipingisNOTapproved.

1. Installgaspipingin accordance with local codes,orintheabsence of local codes, the applicable national codes.

2. Itisrecommendedthat a manual equipment shutoff valve be installed in the gas supply line outside the furnace. Locate valveasclosetothefurnaceaspossiblewhereitis readilyaccessible. Refer to Figure 12.

441 01 2611 06

Right entry

Dipleg&pipecap Left side entry

3. Useblack ironorsteel pipeandfittings orotherpipeapproved by local code.

4. Use pipe thread compound which is resistant to natural and LP gases.

5. Use ground joint unions and install a drip leg no less than 3² long to trap dirt and moisture before it can enter gas control valve inside furnace.

6. Providea immediately up stream of gas supply connection to furnace.

7. Usetwopipewrencheswhenmakingconnectionstoprevent furnace gas control valve from turning.

NOTE:Iflocalcodes allow the use ofaflexiblegasappliance connector,alwaysusea newlistedconnector. Donotusea connector which has previously served another gas appliance.

8. Flexible corrugated metal gas connector may NOT be used inside the furnace or be secured or supported by the furnace or ductwork.

9. Properlysizegas pipe to handle combined appliance load or run gas pipe directly from gas meter or LP gas regulator.

10. Install correct pipe size for run length and furnace rating.

11. MeasurepipelengthfromgasmeterorLPsecondstageregulator to determine gas pipe size.

1

/8² NPTpluggedtappingfortestgaugeconnection

25--24--36

19

Right Side Gas Supply Piping (N8MP)

Gaslinecanbeinstalleddirectlytothegasvalvethroughthehole provided in the right side of the cabinet. See Figure 1 2

Left Side Gas Supply Piping (N8MP)

Two(2) 90° street elbows or two(2) 90° standard elbows and two(2) close nipples are required for left side gas supply. See

Figure 12.

Figure 15

Gas Valve with Elbows (N8MP)

Piping with Street Elbows

1. Assembletheelbowssothattheoutletofone(1)elbowis90° fromtheinletoftheother.Theelbowsshouldbetightenough to be leak proof. An additional end of step 2, see Figure 13.

2. Screw elbow assembly into gas valve far enough to be leak proof.Positionelbowassemblyso thattheinletoftheelbow is at the top of the gas valve. An additional quired in step 3. Turn open end of inlet elbow to face the left side of the furnace (

3. Turnassembly an additional bottom back corner of the gas valve in line with gas opening on left side of furnace, see Figure 15.

Figure 13

1

/4turn), see Figure 14.

Elbows (N8MP)

1

/4turn will be required at the

3

/8turn will be re-

3

/8turn to position inlet near the

25--23--22

4. Gassupply linethencan berundirectly intoopeningofelbow.

Piping with Close Nipples and Standard Elbows

1. Assembleelbowsandnipplessimilartostreetelbowsshown in Figure 13.

2. Follow steps 2 through 4 Piping with Street Elbows.

!

WARNING

FIRE HAZARD Failure to follow safety warnings exactly could

result in serious injury, death, and/or property damage.

Use wrench to hold furnace gas control valve when turning elbows and gas line to prevent damage to the gas control valve and furnace.

Left Side Gas Entry (*8MP) (See Figure 16)

Pipe can be run directly to gas valve through the hole provided in the left side of the cabinet.

Figure 14

Gas Valve with Elbows (N8MP)

20

25--23--23c

25--23--21a

Right Side Gas Entry (*8MP) (See Figure 16)

Two(2)90° streetelbows or two (2) 90° standard elbows and two (2) close nipples are required for right side gas supply,.

Figure 16

Typical Gas Piping (*8MP)

25--24--35a

441 01 2611 06

Piping with Street Elbows

1. Assembletheelbowssothattheoutletofone(1)elbowis90° fromtheinletoftheother.Theelbowsshouldbetightenough to be leak proof. An additional end of step 2, see Figure 13.

2. Screw elbow assembly into gas valve far enough to be leak proof.Positionelbowassemblyso thattheinletoftheelbow is atthebottomofthe gas valve. Anadditional quiredinstep3. Turnopenendof inlet elbow to face the right side of the furnace (

Figure 17

1

/4turn), see Figure 17.

Gas Valve with Elbows (*8MP)

1

/4turn will be required at the

1

/2turnwillbere-

!

WARNING

FIRE OR EXPLOSION HAZARD. Failuretoproperlyinstallmetalgas connector could

result in death, bodily injury and/or property damage.

A flexible corrugated metal gas connector must be properlyinstalled, shall not extend through the side of the furnace, and shall not be used inside the furnace.

Black iron pipe shall be installed at the furnace gas control valve and extend a minimum of 2²²²² outside furnace.

Additional LP Piping Requirements

· Have a licensed LP gas dealer make all connections at stor-

age tank and check all connections from tank to furnace.

· If copper tubing is used, it MUST comply with limitation set in

LocalCodes,orin the absence of local codes, the gas codes of the country having jurisdiction.

· Two--stage regulation of LP gas is recommended.

25--22--25a--3

3. Turnassembly an additional1/2turn to position inlet near the top of the gas valve in line with gas opening on right side of furnace, see Figure 18.

Figure 18

4. Gassupply linethencan berundirectly intoopeningofelbow.

Gas Valve with Elbows (*8MP)

Piping with Close Nipples and Standard Elbows

1. Assembleelbowsandnipplessimilartostreetelbowsshown in Figure 13.

2. Follow steps 2 through 4 Piping with Street Elbows.

!

WARNING

FIRE OR EXPLOSION HAZARD. A natural gas or LP gas leak ignited by an open

flame or spark could result in death, personal injury and/or property damage.

Natural gas is lighter than air and will rise. Liquefied petroleum (LP) gas is heavier than air and will settle and remain in low areas and open depressions.

Thoroughly ventilate area and dissipate gas. Do NOT use amatch or open flame to test for leaks, or attempt to start up furnace before thoroughly ventilating area.

Final Check

· Test all pipe for leaks.

· If orifices were changed, make sure they are checked for

leaks.

· During pressure testing of gas supply piping system:

a. If test pressure does not exceed furnace from the gas supply piping system by closing the equipment shutoff valve.

b.Iftestpressureexceeds equipment shutoff valve must be disconnected from the gas supply piping system.

1

/2² psi,thefurnaceandits manual

· To check for leaks apply soap suds or a liquid detergent to

each joint. Bubbles forming indicate a leak.

· Do not use an open flame to test for gas leaks. Fire or explo-

sion could occur.

· Correct even the smallest leak at once.

1

/2² psi, isolate the

441 01 2611 06

21

9. Electrical Wiring

!

ELECTRICAL SHOCK HAZARD. Failure to follow safety warnings exactly could

result in serious injury, death, and/or property damage.

Turn OFF electrical power at fuse box or service panel before making any electrical connections and ensure a proper ground connection is made before connecting line voltage.

Power Supply Wiring

The furnace MUST be electrically wired and grounded in accordance with local codes, or in the absence of local codes, with the NationalElectricalCode(NEC),ANSI/NFPA70--2002 in the U.S., or the Canadian Electrical Code (CEC), CSA C22.1 in Canada.

The power supply to the furnace connections must be between 104 VAC and 127 VAC during furnace operation for acceptable performance.

Fieldwiring connectionsmustbemadeinsidethefurnaceconnec tion box. A suitable strain relief should be used at the point the wires exit the furnace casing.

Copper conductors shall be used. Line voltage wires should conform to temperature limitation of 63° F(35° C) rise. Wire and circuitbreaker sizingshallbebasedontheampacityofthefurnace electrical components plus the amps for all installed accessories (0.8 amps total for EAC and HUM). Ampacity can be determined by using the NEC or CEC.

Furnace must be installed so the electrical components are protected from water and connected to its own separate circuit.

WARNING

4. Position all wires away from hot surfaces, sharp edges, and moving parts. Do not pinch J--box wires or other wires when reinstalling burner compartment door.

Thermostat

Thermostatlocationhasanimportanteffectontheoperationofthe furnace. Follow instructions included with thermostat for correct mounting and wiring.

Low voltage connections to furnace must be made on terminal board to fan control. (See Figure 19)

Ifcoolingisused,theY fromthethermostatmustbeconnectedto the control board Y to energize cooling blower speed.

Set thermostat heat anticipator in accordance with the Technical Support Manual.

Optional Equipment

Allwiringfrom furnacetooptionalequipmentMUSTconform to localcodesor, in theabsenceoflocal codes,theapplicablenational codes. Install wiring in accordance with manufacturer’s instructions.

Humidifier/Electronic Air Cleaner

The furnace is wired for 115VAC humidifier and/or electronic air cleaner connection.

NOTE:

load for both the EAC terminal and the HUM terminal combined.

NOTE: The humidifier will be powered when the furnace is fired

andthecirculatingairblower comeson.Theelectronicaircleaner will be powered anytime the thermostat calls for air movement. However,theelectronic air cleaner is NOT energized during continuous fan operation controlled by the electronic fan control.

Do NOT exceed 115V/0.8 amp. maximum current

J-Box Relocation

N8MPN and N8MPL Models

TheJ--boxisinstalledinblowercompartmentonleftsideofcasing. An alternate J--box location on right side can be used.

1. Removebag containing two hole plugs and two self--tapping screws from loose parts bag in blower compartment.

2. Remove and discard two screws holding J--box to casing.

3. Move large hole plug from right to left J--box location.

4. Move J --box to alternate location and attach using two self-tapping screws from bag.

5. Apply two hole plugs from bag at left J--box location.

6. Position all wires away from sharp edges and moving parts. Do not pinch J--box wires or other wires when reinstalling blower compartment door.

*8MPN and *8MPL Models

The J --box is installed in the burner compartment on left side of casing. An alternate J--box location on right side can be used:

1. Remove and save two screws holding J--box to casing.

2. Move large hole plug from right to left J--box location.

3. MoveJ--boxtoalternatelocationandattachusing twoscrews removed from left side location.

22

Figure 19

115V. 60Hz.

HOT

NEUT.

G

Connection Box

Ground

Thermostat

Y

RGG

W

Y

C

Low Voltage TerminalBoard

NOTE: 115 VAC/60Hz/single--phase Operating voltage range*: 127 max, 104 min.

* Permissible limits of voltage at which unit will operate satisfactorily

Electrical Connections

W

BK

R

25--24--33--4

441 01 2611 06

Fan Control

Thefan controlispreset atthefactory withONdelayof30seconds in the heating mode. The blower OFF timing is preset at 140 seconds. If desired, the fanOFF delay can be reset to obtain thelongest delay times while still maintaining comfort levels. See “Furnace Wiring Diagram”.

Figure 20

Fan Timer Connections

Control Center Fuse

The 24V circuit contains a 5--amp, automotive--type fuse located oncontrolcenter.(SeeFigure 20)Anyelectricalshortsof24Vwiringduringinstallation,service,or maintenance may cause fuseto blow.If fuse replacement is required, use only a fuse of identical size (5 amp.).

FUSE

10. Ductwork and Filter (Upflow/Horizontal)

DIP Switch

25--23--41

!

WARNING

CARBON MONOXIDE POISONING HAZARD. Failure to properly seal duct could result in death

and/or personal injury. DoNOT draw return airfrom inside a closet or utility

room where furnace is located. Return air duct MUST be sealed to furnace casing.

Duct Connections

This furnace may be installed in only a bottom or side return--air duct application. Return air duct connections through the back of the furnace is NOT permitted.

Upflow ONLY: Side return--air duct connections can be made by cutting out the embossed area shown in Figure 21. A plugged holeisprovidedateach furnacesideductlocationtohelpstartcuttingthe opening. Sideductconnections areNOTpermittedinhorizontal flow applications.

Figure 21

Upflow and Horizontal Flow: Bottom return--air duct connec-

tions can be made by removing the knockout panel in the furnace base. Do NOT remove knock-out except for a bottom return--air duct connection.

441 01 2611 06

Cutting Side Return Air Opening

Plugged

Starting

Hole

Duct Design

Designandinstall airdistributionsystemtocomplywith AirConditioning Contractors of America manuals or other approved methods that conform to local codes and good trade practices.

Whenthefurnaceislocatedinanarea nearor adjacentto theliving area,thesystemshouldbecarefullydesignedwithreturns tominimize noise transmission through the return air grille. Any blower movingahighvolumeofairwillproduceaudiblenoise,whichcould beobjectionablewhenthefurnaceislocatedvery closetoaliving area. It is often advisable to route the return air ducts under the floor or through the attic.

· Refer to furnace Technical Support Manual (Blower Data)

for air flow information.

· Sizeductworktohandleairflowfor heating(andaircondition-

ing if so equipped).

Duct Installation Requirements

· When a furnace is installed so that supply ducts carry air cir-

culated by the furnace to areas outside of the space containingthefurnace,thereturnair shall also behandledbyduct(s) sealed to the furnace casing and terminating outside the space containing the furnace.

!

CARBON MONOXIDE POISONING HAZARD. Failure to follow safety warning exactly could

result in serious injury, death, and/or property damage.

Install cooling coil on furnace discharge. Cool air passing over heat exchanger could cause condensate to form resulting in heat exchanger failure.

· Whenthefurnace isusedwithacoolingunit, thefurnaceshall

beinstalled parallelwithorontheupstreamsideofthecooling unit to avoid condensation in the heating element.

· Withaparallel flowarrangement,thedampersorothermeans

usedtocontrolflowofair shall be adequate to prevent chilled airfromenteringthefurnace.Chilledairgoingthroughthefurnace could cause condensation and shorten furnace life. Dampers (purchased locally) can be either automatic or manual. Manuallyorautomatically operateddampersMUST be equipped with a means to prevent furnace and air conditioningoperation,unlessdamperisinthefullheatorcoolposition.

WARNING

23

· Installation of locking-type dampers is recommended in all

branches,orinindividualducts to balance system’sairflows.

· Non--combustible, flexible duct connectors are recom-

mended for return and supply connections to furnace.

· If airreturngrilleis located closetothefan inlet, installatleast

one 90° air turn between fan and inlet grille to reduce noise.

· Ductworkinstalledinatticorexposedtooutsidetemperatures

requiresaminimumof2² ofinsulationwithoutdoortypevapor barrier.

· Ductworkinstalledinan indoorunconditionedspacerequires

a minimum of 1² of insulation with indoor type vapor barrier.

Inspection Panel on some models

Forafurnacenotequipped with a coolingcoil,theoutletductshall beprovidedwitharemovableaccesspanel. Thisopeningshallbe accessiblewhenthefurnaceisinstalledandshallbeof suchasize thattheheatexchangercanbeviewedforpossibleopeningsusing light assistance or a probe can be inserted for sampling the air stream. This access cover shall be attached in such a manner as to prevent air leaks.

Filters

A filter MUST be used.

Filtersarenotsupplied from your distributor.

See Table 4 for required high--velocity filter sizes.

withthesefurnaces, butcanbepurchased

!

CAUTION

RISK OF REDUCED FURNACE LIFE

Failure to follow these Caution m ay result in

premature furnace component failure. Use of excessively dirty and/or restrictive air filters

may increase furnace operating temperatures and shorten the life of the furnace.

Filters specified for the furnace are rated at a maximum of 600 FPM air velocity and sized for the furnace’s airflow rate. Replacement filters must be of equivalent type, size, and rating except as described below.

Disposable, low--velocity filters may be used to replace washable, high--velocity filters, providing they are sized for 300 FPM or less.

· The furnaces with 1600 or less CFM rating use a 16” x 25”

high--velocity filter. On these models the filter may be mountedinternallyforbottomreturnora filter and rack may be mounted externally for bottom return.

· The furnaces with greater than 1600 CFM require that both

(left and right) side returns are used. Two side return filters andracksarerequired.Filterracksmustbemountedexternally. See Figure 24.

· If return air must be on one side only,an optional 20 ² x25²

filterstandoffrackkitcan beused.(SeeFigure 22.)Forbottomreturn,aninternalfiltercanbeusedorafilterrack kitcan be mounted externally.

NOTE:The20² x25² standoffsidefilterrackgivesmore filterarea but does not provide more air. See Figure 22. To achieve 2000 CFM 2 side returns are still needed. See Figure 24.

Table 4

Cabinet

Width

151/ 191/ 223/

* Greater than 1600 CFM requires both (left and right) side return filter

racks in upflow position. +Sidereturnairduct(s)isnotpermittedwithhorizontalor downflowfurnace installation.

Use either filter type:

High--Velocity Air Filter Sizes (max.600FPM)

Internal Filter External Filter Rack

Bottom Bottom Side+

2 2 4

14X25 14X25 14X25 or 16X25 16X25* 16X25* 16X25* 20X25* 20X25* 16X25*

· Washable,high--velocityfiltersarebasedon amaximumair

flow rating of 600 FPM.

· Disposable, low velocity filters are based on a maximum air

flow of 300 FPM when used with external filter grille.

24

NOTE: Disposable low--velocity filters may be replaced with washable,high --velocityfilters.Washable,high--velocityfilterscan bereplaced ONLYwithsametypeandsizefilterunlesslow--velocity filters meet the minimum size areas for 300 FPM or less.

Figure 22

Optional Duct Standoff

20x25Optional Filter Rack

Filter

25--23--05--4

Optional Filter Rack Installation: Side Return

Centerthefilterrackonthesidepanel,flushwiththebottomedge ofthefurnace. Mark the fastening holes. Drill the fastening holes inthes ide panel andfastenthefilterrack in placewithsheetmetal screws. See Figure 23 and Figure 24.

441 01 2611 06

Figure 23 Side Return Filter Rack

Figure 25 Bottom Mounted Filter

Center Clip si de--to -- sid e

Figure 24

Filter

Filters Installed on Two Sides

Using Two Filter Racks

Filter

25--23--05--4a

25--23--05--3

Internal Filter in Bottom-Return Installation

Wheninstallingabottom--mountedfilterinsidethefurnace,install thefilter clipsontheedgeofthebottomductopeningwiththewider end of the clips toward the blower, as shown i n Figure 25. Clips may be obtained from your distributor or fabricated from sheet metal (Figure 26). Insert filter into side clips first and push filter back until it is fully engaged into back c lip.

9²

25--24--18--1

Figure 26 Filter Clip Construction

11/

²

2

3²

11/

²

4

26 Ga. Galvanized Steel

11

/

²

16

NOTE: If filters are only suitable for heating application, advise homeowner that filter size may need to be increased if air conditioning is added.

Addition Of Air Conditioning

Whenarefrigeration coil is usedinconjunctionwiththis furnace, it mustbeinstalledonthedischargesideofthe furnacetoavoidcondensationintheheatexchanger. The coil installation instructions must be consulted for proper coil location and installation procedures. With a parallel flow arrangement, dampers must be installedto preventchilledairfromenteringthefurnace. Ifmanually operated dampers are used, they must be equipped with a means to prevent operation of either unit unless the damper is in full heat or full cool position.

Copperorplastictubingmaybeusedforthecondensatedrainline.

11. Ductwork and Filter (Downflow)

!

CARBON MONOXIDE POISONING HAZARD. Failure to properly seal duct could result in death

and/or personal injury. Do NOT draw return air from inside a closet or

utility room where furnace is located. Return air duct MUST be sealed to furnace casing.

441 01 2611 06

WARNING

!

WARNING

FIRE HAZARD. Failure to connect the return air duct to the top of a

downdlow furnace could result in death, bodily injury, and/or property damage.

Side return air duct(s) may cause excessive furnace and/orairtemperatures,whichcouldresult in death, bodily injury, and/or property damage.

Return air duct is to be connected to only the top of downflow furnace.

25

!

CombustibleFloors

WARNING

BURN HAZARD. The vent may be hot. Failure to install vent shield

properly could result in bodily injury. Install VENT PIPE SHIELD NAHA002VC as

described below.

VentShield

Ventshieldisrequiredforalldownflowinstallations.TheventMust exit out the side of the furnace for all downflow installations. This placesthe hotventpipe(over300° F)withinreachofchildren.Vent shieldattachestoside offurnacetoc over vent pipe.SeeFigure 5 in “2. Installation” section.

Outlet Duct Flange

Downflow installations with cased coils require the furnace outlet ductflangeto be bent outwardandflattomate the outletofthefurnacetothecasedcoil.

Sub--Bases for Combustible Floors -- Furnace Only

Note: When using the subbase for combustible floors, the discharge air duct flanges on the furnace MUST be broken down to provide proper fit up to the subbase. Use duct pliers to bend the duct flanges flat onto the furnace casing. DO NOT bend the duct flanges inward (toward the heat exchangers) as air flow restrictions may occur.

The Subbase for Combustible Floors MUST be used when a downflowfurnaceisseton a combustiblefloor,even whenthefurnace is installed on a coil box.

1. Cut the opening in the floor according to the dimensions in Table 5 because the base is equipped withlocating tabs that center the base over the opening.

1

The opening in the base is 1 than the minimum required size of the opening in the floor. Thisisdonetomaintaina1² clearance between the floor and the plenum.

2. Fabricate the plenum to the dimensions given in Table 5. Note that the dimensions given are outside dimensions.

/4² shorter and 11/8² narrower

!

WARNING

FIRE HAZARD. Failure to install furnace on noncombustible

subbasecouldresultin death,personalinjuryand/or property damage.

Place furnace on noncombustible subbase on downflow applications, unless installing on non--combustible flooring.

Table 5

Sub--base for

Combustible Floors

Part Number

Subbase for Furnace Only

NAHH001SB 1511/ NAHH002SB 195/ NAHH003SB 2215/

Subbase for Coil Box

NAHH004SB 1511/ NAHH005SB 195/ NAHH006SB 2215/

*

Outside Dimension

**

Base Spacer Side To Side

Sub--bases for Combustible Floors Dimensions

Sub--base for Combustible

Floor Dimensions

*

H

16

J* K** L M N P R S T

283/ 283/ 283/

209/ 209/ 209/

4 4 4

16 16 16

149/ 183/

2113/

149/ 183/

2113/

16 16

16

16 16

16

OpeningInFloor

16 161/ 16 161/ 16 161/

Opening In

Base For Plenum

145/

4 4 4

181/ 217/

145/ 181/ 217/

8 4 8

15 131/ 15 171/ 15 193/

2 8 4

Typical Plenum

Dimensions

15 131/ 15 171/ 15 193/

2 8 4

3. Setthe baseovertheopening inthefloor,centeringthe openingin thebaseovertheopeninginthefloor.Fastenthebaseto the floor with screws or nails. See Figure 27 and Figure 28.

4. Droptheplenumthroughtheopeninginthebase.Theflange ofthe plenumshouldrestontopofthecombustiblefloorbase.

26

441 01 2611 06

Figure 27

Exploded View of Sub--Base for Furnace ONLY

Figure 29

Exploded View of Sub--Base for Downflow Cased Coil

Figure 28

T

Plenum

H

K

R

P L

N

M

Hole inFloor

Setting the Base

Furnace

S

J

Combustible Floor Base

T

H

2²

²

²²

1²

²

²²

Figure 30

Subbase Insulation

K

P L

N

Hole inFloor

Setting the Base

Coil Box

Plenum

R

M

S

J

Combustible Floor Base

2²

²

²²

1²

²

²²

Subbase Insulation

Wood Floor

Wood Screw Plenum

Sub--base for Combustible Floors -- Downflow Coil Adapter Box

The subbase for combustible floors is required when a downflow furnace, used with a downflow coil box, is set on combustible flooring.

1. Cut the opening in the floor according to the dimensions in Table 5 because the base is equipped withlocating tabs that center the base over the opening.

The opening in the base is 1 than the minimum required size of the opening in the floor. Thisisdoneto maintaina1”clearancebetweenthefloorand the plenum.

2. Fabricate the plenum to the dimensions given in Table 5. Note that the dimensions given are outside dimensions.

3. Setthe baseovertheopening inthefloor,centeringthe openinginthebase over the opening in the floor. Fasten the base to the floor with screws or nails. See Figure 29 and Figure 30.

4. Dropthe plenum throughtheopeninginthe base. The flange ofthe plenumshouldrestontopofthecombustiblefloorbase.

441 01 2611 06

1

/4²shorter and 11/8² narrower

Wood Floor

Wood Screw Plenum

Consideration must be given to the height of the base to allow for easy installation of the condensate drain. See Figure 31.This subbase for combustible floors has been designed so that the heightofthes ubbase raises thedownflowcoiloffthe floor toallow easy installation of the condensate drain.

Figure 31

Condensate Line Raised by Base

25--20--52

Non--Combustible Floor

Set the furnace over the opening in the floor. If necessary, grout around the base to seal air leaks between the base and the floor.

Duct Connections

Inthedownflow position,thereturn--air ductmustbeconnectedto onlythetopofthefurnace. Top returnconnectionscanbemadeby

27

removingtheknockoutpanelinthefurnacebase. Return air connectionthroughtheside(s)orbackofthe furnace is NOT allowed.

Duct Design

Designandinstall airdistributionsystemtocomplywith AirConditioning Contractors of America manuals or other approved methods that conform to local codes and good trade practices.

Whenthefurnaceislocatedinanarea nearor adjacentto theliving area,thesystemshouldbecarefullydesignedwithreturns tominimize noise transmission through the return air grille. Any blower movingahighvolumeofairwillproduceaudiblenoise,whichcould beobjectionablewhenthefurnaceislocatedvery closetoaliving area. It is often advisable to route the return air ducts under the floor or through the attic.

· Refer tofurnaceTechnical Support Manual(BlowerData)

for air flow information.

· Size ductwork to handle air flow for heating (and air condi-

tioning, if so equipped).

Duct Installation Requirements

· When afurnaceis installedsothatsupplyductscarryaircir-

culatedbythefurnacetoareasoutsideofthespacecontaining the furnace, the return air shall also be handled by duct(s)sealedtothefurnacecasingandterminatingoutside the space containing the furnace.

! CARBON MONOXIDE POISONING HAZARD. Failure to follow safety warning exactly could

result in serious injury, death, and/or property damage.

Install cooling coil on furnace discharge. Cool air passing over heat exchanger could cause condensate to form resulting in heat exchanger failure.

· Whenafurnace isusedwithacoolingunit,thefurnaceshall

beinstalledparallelwithoron theupstreamsideof thecooling unit to avoid condensation in the heating element.

· With a parallel flow arrangement, the dampers or other

means used to control flow of air shall be adequate to prevent chilled air from entering the furnace. Chilled air going throughthefurnace could cause condensationandshorten furnacelife. Dampers(purchasedlocally)canbe either automatic or manual. Manually or automatically operated dampers MUST be equipped with a means to prevent furnaceand airconditioningoperation,unlessdamperisin the full heat or cool position.

· Installation of locking--type dampers is recommended in all

branches, or in individual ducts to balance system’s air flows.

· Non--combustible, flexible duct connectors are recom-

mended for return and supply connections to furnace.

· If air return grille is located close to the fan inlet, install at

least one 90° air turn between fan and inlet grille to reduce noise.

WARNING

· Ductwork installed in attic or exposed to outside tempera-

tures requires a minimum of 2² of insulation with outdoor type vapor barrier.

· Ductwork installed in an indoor unconditioned space re -

quires a minimum of 1² of insulation with indoor type vapor barrier.

Filters

A filter MUST be used. Filtersarenotsupplied withthesefurnaces,but can bepurchased

from your distributor. See Table 6 for required high--velocity filter sizes.

Table 6 High Velocity Air Filter Sizes (max. 600 FPM)

Cabinet

Width 151/

²

² 14² X25² 14² X25²

²²

2

191/

²

² 16² X25² 16² X25²

²²

8

223/

²

² 20² X25² 20² X25²

²²

4

Use either filter type:

Internal Filter External Filter Rack

· Washable,high--velocityfiltersarebased onamaximumair

flow rating of 600 FPM.

· Disposable, low velocity filtersarebasedonamaximumair

flow of 300 FPM when used with external filter grille.

!

CAUTION

REDUCED FURNACE LIFE HAZARD Failure to follow caution instructions may result in

reduced furnace life. Use of excessively dirty and/or restrictive air filters

may increase furnace operating temperatures and shorten the life of the furnace.

Filters supplied with the furnace are rated at a maximum of 600 fpm air velocity and sized for the furnace’s airflow rate. Replacement filters must be of equivalent type, size, and rating except as described below.

Disposable, low--velocity filters may be used to replace washable, high--velocity filters, providing they are sized for 300 FPM or less.

NOTE: Disposable, low--velocity filters may be replaced with

washable, high--velocity filters. Washable, high--velocity filters canbereplacedONLY withsametypeandsizefiltersunlesslow-velocity filters meet the minimum size areas for 300 FPM or less.

Internal Filter in Top Return Installation

Wheninstalling top-- mountedfilterinsidethefurnace,installthefilter clips on the edge of the top duct opening with the wider end of the clips toward the blower as shown in Figure 32. Clips may be obtained from your distributor or fabricated from sheet metal (Figure 33). Insertfilterintosideclipsfirstandpushfilterbackuntil it is fully engaged into back clip.

28

441 01 2611 06

Figure 32

Top Mounted Internal Filter

9²

Figure 33 Filter Clip Construction

11/

²

2

3²

Center Clip si de--to -- sid e

11/

²

4

NOTE: If filters are only suitable for heating a pplication, advisehomeownerthat filtersizemayneed tobeincreased ifair conditioning is added.

Addition Of Air Conditioning

Whenarefrigeration coil is usedinconjunctionwiththis furnace, it mustbeinstalledonthedischargesideofthe furnacetoavoidcondensationontheheat exchanger.Thecoil installation instructions must be consulted for proper coil location and installation procedures. With a parallel flow arrangement, dampers must be installedtopreventchilledairfromenteringthefurnace.Ifmanually operated dampers are used, they must be equipped with a means to prevent operation of either unit unless the damper is in full heat or full cool position.

Copperorplastictubingmaybeusedforthecondensatedrainline.

26 Ga. Galvanized Steel

11

/

²

16

12. Checks and Adjustments

Startup

NOTE: Refer to startup procedures in the Users Information Manual.

!

ELECTRICAL SHOCK, FIRE, OR EXPLOSION HAZARD.

Failure to follow safety warnings exactly could result in serious injury, death, and/or property damage.

If any sparks, odors or unusual noises occur, immediately shut OFF gas and power to furnace. Check for wiring errors or obstruction to blower.

Gas Supply Pressure

WARNING

!

WARNING

FIRE OR EXPLOSION HAZARD. FailuretoturnOFF gas at shutoffbeforeconnecting

manometer could result in death and/or personal injury.

Turn OFF gas at shut off before connecting manometer.

1. Withgas OFF,connectmanometerto manifold pressure tap onoutletofgascontrolvalve.SeeFigure 34.Useamanometerwitha0² to 12² water c olumn range.

Figure 34

Supply Pressure Tap (Hidden)

Typical Gas Control Valve Honeywell

Manifold Pressure Adjustment (Hidden)

Diagnostic Light (on some models)

Gassupply pressureshouldbewithinminimumandmaximumvalueslistedonratingplate.Pressuresareusuallysetby gassuppliers.

(See LP Gas Conversion Kit instruction manual for furnaces converted to LP gas.)

Manifold Gas Pressure Adjustment

NOTE: Make adjustment to manifold pressure with burners operating.

441 01 2611 06

On/Off Switch

Pilot Pressure Adjustment

INLET

Manifold Pressure Tap

OUTLET

25--22--25a

29

2. TurngasON. Operate the furnace by using a jumper wire on the R to W thermostat connections on the fan board.

3. Remove manifold pressure adjustment screw cover on furnace gas control valve. Turn adjusting screw counterclockwise to decrease manifold pressure and clockwise to increase pressure.

NOTE:AdjustmentscrewcoverMUST be replacedongascontrol valve before reading manifold pressure and operating furnace.

4. Set manifold pressure to value shown in Table 7 or Table 8.

5. When the manifold pressure is properly set, replace the ad justment screw cover on the gas control valve.

6. Remove jumper wire from thermostat connection on fan board. Removemanometer connection from manifold pressure tap, and replace plug in manifold.

7. Check for leaks at plug.

Adjust Pilot Burner

The furnace has a pilot flame to light the main burner. The flame shouldsurround just, remove cap from pilot adjusting screw on gas control v alve. Turnscrewcounterclockwisetoincreaseorclockwisetodecrease flame as required. Replace cap after adjusting screw.

Figure 35

3

/8² to1/2² of the flamerod.See Figure 35. To ad-

Pilot Burner

Proper Flame Adjustment

Flame Rod

Hot Surface

10 -- 11 -- 65

Igniter

Natural Gas Input Rating Check

The gas meter can be used to measure input to furnace. Check with gas supplier for actual BTU content.

1. TurnOFF gas supply to allappliancesotherthanfurnaceand start furnace. Use jumper wire on R to W.

2. Time how many seconds it takes the smallest dial on the gas meter to make one complete revolution.

Note: Ifmeterusesa2cubicfootdial, divide results (seconds) by two.

Refer to Example. The Example is based on a natural gas BTU content of 1,000 BTU’s per cubic foot.

Example

Natural Gas

BTU Content

1,000 3,600 48 75,000

3. Remove jumper wire from R to W1.

4. Relight all appliances and ensure all pilots are operating.

No. of Seconds

Per Hour

1,000 x 3,600 ¸ 48 = 75,000 BTUH

Time Per Cubic

Foot in

Seconds

BTU Per

Hour

Orifice Sizing

NOTE: Factory sized orifices for natural and LP gas are listed in the furnace Technical Support Manual.

Ensure furnace is equipped with the correct main burner orifices. Refer to Table 7 or Table 8 for correct orifice size and manifold pressure for a given heating value and specific gravity for natural and propane gas.

Operation Above 2000¢ Altitude

!

FIRE, EXPLOSION, CARBON MONOXIDE POISONING HAZARD.

Failure to follow these instructions exactly could resultindeath,personalinjury and/orpropertydamage.

This high--altitude gas--conversion shall be done by a qualified service agency in accordance with the Manufacturer’s instructions and all applicable codes and requirements, or in the absence of local codes, the applicable national codes.

Thesefurnacemay be usedatfullinput ratingwheninstalledataltitudesupto2000¢. Wheninstalledabove2000¢,the inputmustbe decreased2%(natural)or4%(LP) for each 1000¢ abovesealevel. This may be accomplished by a simple adjustment of manifold pressure or an orifice change, or a combination of a pressure adjustmentandanorificechange.Thechangesrequireddependon theinstallationaltitudeand theheatingvalueofthe fuel. Table 7 & Table 8 showtheproperfurnacemanifoldpressureandgasorifice sizetoachieveproperperformancebasedonelevation abovesea level for both natural gas and propane gas.

To use the natural gas table, first consult your local gas utility for theheatingv alue of the gassupply.Selecttheheatingvalue in the firstcolumnandfollowacrossthetableuntilthe appropriateelevationforthe installation isreached.Thevalue in theboxattheintersection of the altitude and heating value provides not only the manifoldpressurebutalsotheorificesize.Inthenaturalgastables thefactoy--shipped orifice size isinbold(42).Othersizesmustbe obtained from service parts.

Nameplate Sea Level Input Rate x (Multiplier)

Elevation

2001¢ - 3000¢ 0.95 0.90 3001¢ - 4000¢ 0.93 0.86 4001¢ - 5000¢ 0.91 0.82 5001¢ - 6000¢ 0.89 0.78 6001¢ - 7000¢ 0.87 0.74 7001¢ - 8000¢ 0.85 0.70

* Based on mid--range of elevation.

WARNING

High Altitude Input Rate =

High Altitude Multiplier

Natural Gas LP Gas

30

441 01 2611 06

MANIFOLD PRESSURE AND ORIFICE SIZE FOR HIGH ALTITUDE APPLICATIONS

Table

7

NATURAL GAS MANIFOLD PRESSURE (²²²² w.c.)

MEAN ELEVATION FEET ABOVE SEA LEVEL

Orifice

No.

0to

2000

Manifold

Pressure

HEATING

VALUE

at ALTITUDE

BTU/CU. FT.

700 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 41 3.7 725 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 41 3.7 41 3.4 750 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 41 3.5 42 3.6 775 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 41 3.6 42 3.6 42 3.3 800 -- -- -- -- -- -- -- -- -- -- -- -- 41 3.6 42 3.7 42 3.4 42 3.1 825 -- -- -- -- -- -- -- -- 41 3.7 41 3.4 42 3.5 42 3.2 42 2.9 850 -- -- -- -- -- -- -- -- 41 3.5 42 3.6 42 3.3 42 3.0 42 2.8 875 -- -- -- -- 41 3.6 42 3.6 42 3.4 42 3.1 42 2.8 42 2.6 900 -- -- -- -- 42 3.7 42 3.4 42 3.2 42 2.9 42 2.7 42 2.5 925 41 3.7 42 3.5 42 3.3 42 3.0 42 2.8 42 2.5 42 2.3 950 41 3.5 42 3.3 42 3.1 42 2.9 42 2.6 42 2.4 43 2.7

975 42 3.7 42 3.2 42 2.9 42 2.7 42 2.5 42 2.3 43 2.6 1000 42 3.5 42 3.0 42 2.8 42 2.6 42 2.4 43 2.7 43 2.4 1050 42 3.2 42 2.7 42 2.5 42 2.3 43 2.6 -- -- -- -- -- -- ---1100 42 2.9 42 2.5 42 2.3 43 2.6 -- -- -- -- -- -- -- -- -- -- -- --

NOTE: Natural gas data is based on 0.60 specific gravity. For fuels with different specific gravity consult the National Fuel Gas Code ANSI Z223.1--2002/NFPA 54--2002 or National Standard of Canada, Natural Gas And Propane Installation Code CSA B149.1--00.

Orifice

No.

2001 to

3000

Manifold Pressure

Orifice

No.

3001 to

4000

Manifold

Pressure

Orifice

No.

4001 to

5000

Manifold

Pressure

Orifice

No.

5001 to

6000

Manifold

Pressure

Orifice

No.

6001 to

7000

Manifold

Pressure

Orifice

No.

7001 to

8000

Manifold

Pressure

Table 8 LPG or PROPANE GAS MANIFOLD PRESSURE (²²²² w.c.)

HEATING VALUE

at ALTITUDE

BTU/CU. FT.

2500 10.0 10.0 9.0 10.0 9.4 8.5 10.0

Orifice Size #54 #54 #54 #55 #55 #55 #56

NOTE:Propanedataisbasedon1.53specificgravity. Forfuels withdifferent specificgravityconsulttheNational FuelGasCodeANSIZ223.1--2002/NFPA 54--2002 or National Standard Of Canada, Natural Gas And Propane Installation Code CSA B149.1--00.

0to

2000

2001 to

3000

NOTE: The derating of these furnaces at 2% (Natural Gas) and

4%(PropaneGas)has been tested and design --certified by CSA.

MEAN ELEVATION FEET ABOVE SEA LEVEL

3001 to

4000

4001 to

5000

Figure 36

5001 to

6000

Removing NOx inserts

6001 to

7000

7001 to

8000

High Altitude Air Pressure Switch

The factory--installed pressure switch need NOT be changed for anyfurnaceinstallationsfromsealevelupto and including8,000¢ altitude

!

CARBON MONOXIDE POISONING HAZARD. Failure to follow this warning could result in

property damage, personal injury and/or death. NOx inserts for use with Natural Gas units ONLY. If

LP Gas is required, NOx inserts must be removed.

WARNING

25--40--03

Changing Orifices

1. Afterdisconnecting power and gas supply to the furnace, remove the burner compartment door, exposing the burner compartment.

2. Disconnect gas line and pilot tubing from gas valve so manifold can be removed.

3. Disconnect wiring at gas valve. Be sure to note the proper location of all electrical wiring before being disconnected.

441 01 2611 06

4. Remove the four (4) screws holding the manifold and gas valve to the manifold supports. Do not discard any screws. See Figure 37.

5. Carefully remove the manifold assembly.

6. Removetheorificesfromthemanifoldandreplacethemwith proper sized orifices. See Figure 38.

7. Tighten orifices so they are seated and gas--tight. See

Figure 38.

31

Figure 37

Manifold

Figure 39

Main Burner

Burner Face

10--10--78

Some Models may vary

25--23--51z

Figure 38

29.3 mm

1.21²

1.11²

8. Reassembleall parts inreverseorderas removed. Besureto engagethemainburnerorificesintheproperopeningsinthe burners.

9. After reassembling, turn gas on and check all joints for gas leaks using a soapy solution. All leaks must be repaired immediately.

Clearances

Measure from face of orifice to the back side of the manifold.

+1.5

-- 1 .1

Main Burner Flame Check

Allow the furnace to run approximately 10 minutes. Then inspect the main burner and pilot flames. See Figure 39.

Check for the following:

· Stable and blue flames. Dust may cause orange tips or

wisps of yellow, but flames MUST NOT have solid, yellow tips.

· Flames extending directly from burner into heat exchanger.

· Flames do NOT touch s ides of heat exchanger

If any problems with main burner flames are noted, it may be necessary to adjust gas pressures or check for drafts.

Air Temperature Rise Check

!

REDUCED FURNACE LIFE HAZARD Failure to properly set the air temperature rise may

result in reduced furnace life.

Use ONLY the blower motor speed taps marked “Y” for YES for setting air temperature rise.

Blower Motor Speed Taps for

Model Sizes

050B12 N Y Y N 075B12 N Y Y Y 075F16 N N Y Y 100F14 N N Y Y 100F20 N Y Y Y 100J20 N Y Y Y 100J22 Y Y Y N 125J20 N Y Y Y 125J22+ Y Y Y Y 150J20Ö N Y Y Y

+N8MPN only Ö *8MPN only

Theblowerspeed MUST besettogivethe correctairtemperature rise through the furnace as marked on the rating plate. Temperature rise is the difference between supply and return air temperatures.

To check temperature rise, use the following procedure:

1. Placethermometersinsupplyandreturnairregistersasclose to furnace as possible, avoiding direct radiant heat from heat exchangers.

2. Operatefurnacefor 10 minutes with all the registers and duct dampers open by using a jumper wire on R to W thermostat connections on the fan board.

3. Take readings and compare with range specified on rating plate.

CAUTION

N8MPN/L and *8MPN/L Model Sizes

LO

RED

MLO

BLUE

MHI ORN

HI

BLK

32

4. Iftheairtemperature rise is notinthecorrectrange,the blower speed must be changed. A higher blower speed will lower the temperature rise. A lower blower speed will increase the temperature rise.

5. Removethejumperwireafter the adjustments are complete.

441 01 2611 06

Changing Blower Speed

!

ELECTRICAL SHOCK HAZARD. Failure to disconnect power could result in death,

personal injury and/or property damage. TurnOFFpower to furnace before changing speed

taps.

NOTE: The speed taps that the manufacturer sets at the factory

for this furnace are based on a nominal 400 CFM per ton cooling and the basic mid range on the temperature rise for heating.

Since the manufacturer cannot predict the static pressure thatwillbeappliedtothe furnace,itis theresponsibilityofthe installer dealer/contractor to select the proper speed tap leads for the application when the furnace is installed.

If it is necessary to change speeds, refer to steps below.

1. Refer to Furnace Wiring Diagram for location of the heating and cooling speed taps located on the electronic fan control as well as location of unused blower motor speed leads. Use thechart(Table 9 ) to determine the blower motor speed settings.

Table 9 Blower Speed Chart

Wire Color Motor Speed

* Med--High speed may not be provided on all models.

2. Changetheheat or cool blowermotorspeedbyremovingthe motor speed lead from the “Heat”or“Cool” terminal and re- place it with the desired motor s peed lead from the “Unused Motor Lead” location. Connect the wire previously removed from the “Heat”or“Cool” terminal to the vacated “Unused

Motor Lead” terminal.

WARNING

Black High

Orange* Med--High

Blue Med--Low Red Low

3. If the samespeedmustbe used for bothheatingandcooling, remove the undesired motor speed lead from the “Heat” or

“Cool”terminalandconnectthat lead to the open terminalat “Unused Motor Lead” location or tape off. Attach a jumper

betweenthe“Heat”and“Cool” terminals and the remaining motor speed lead.

Note: When using the same speed on motors with (4) speed leads,itwillbenecessarytotapeofftheterminalofthemotor speedleadremovedfromthe“Heat” or “Cool” terminal with electrical tape since an open terminal will not be available at the “Unused Motor Lead” location.

Thoroughly check the system after modification to ensure the properoperationof thecirculatingairblowerinallmodes ofoperation.

Continuous--Fan Operation

A terminal is provided on the electronic fan control located in the circulating air blower compartment for operation of the continuous--fan option. This connectionisintendedfor thelowspeedmotortap, and has a lower contact rating (8 amps) than the heat and cool taps. When the low speed blower lead is connected to this terminal, this will provide low speed blower operation whenever the other two speeds (Heat or Cool) are not energized.

Thoroughly check the system after modification to ensure the properoperationof thecirculatingairblowerinallmodes ofoperation.

Separate speed selections for Heat, Cool, and Continuous--Fan

Connect low speed lead from circulating air motor to the “Cont” terminalatthe electronicfancontrol. Theappropriatemotorleads shouldalreadybeconnected tothe“Heat”and“Cool”terminals.

Heating and Continuous--Fan Speed the Same

Ifitis necessary tooperatetheheatingspeed andcontinuous--fan speed using the same blower speed, connect a jumper between the “Heat” and “Cont” terminals on the electronic fan control.

Note: There should be only ONE motor lead going to the “Heat” and “Cont” terminals.

13. Furnace Maintenance

!

FIRE, EXPLOSION, OR CARBON MONOXIDE POISONING HAZARDS

Failure to have the furnace inspected and maintained could result in death, bodily injury, and/or property damage.

It is recommended that the furnace be inspected and serviced on an annual basis (before the heating season) by a qualified service agency .

See “User’s Information Manual”.

441 01 2611 06

WARNING

!

ELECTRICAL SHOCK, FIRE OR EXPLOSION HAZARD

Failure to follow safety warnings exactly could result in dangerous operation, serious injury, death or property damage.

Improper servicing could result in dangerous operation, serious injury, death or property damage.

· Before servicing, disconnect all electrical power to furnace.

· When servicingcontrols,labelallwiresprior to disconnecting. Reconnect wires correctly.

· Verify proper operation after servicing.

WARNING

33

14. Sequence of Operation & Diagnostics

The following is the normal operating sequence.

Cooling (Y) Request:

24 VAC signals applied to Y & G terminals of EFT (electronic fan timer) control.

· Cool motor speed is energized after 5 second Cool Fan On Delay time.

Y & G signals removed from EFT.

· Cool motor speed is de--energized after 90 second Cool Fan Off Delay time.

Continuous Circulating Fan (G) Request:

24 VAC signals applied to G terminals of EFT control.

· Heat motor speed is energized without delay.

G signal removed from EFT.

· Heat motor speed is de--energized without delay.

NOTE 1) Furnace de--energizes the fan during the heat exchanger warm--up period on a call for Heating that occurs during a G request unless a blower motor lead is connected to the Cont terminal on the EFT, in which case see NOTE 2).

NOTE 2) Heating or Cooling requests received during a Fan request cause the fan speed to change to the appropriate heat or cool speed after the Fan On Delay timeexpires. The fan returns to continuous circulating s peed after the selected Fan Off Delay time expires following loss of the Heating or Cooling request.

Heating (W) Request:

24 VAC signals applied to W terminal of EFT control.

· Inducer motor turns on.

· Followinga3secondprepurge delay, the pilot gas valve opens and the igniter begins to warm up.

· After the pilot lights, the gas control valve is energized and main burners light.

· Timedfrom the opening of the main gas control valve, the furnace control will delay blower operation for the Heat Fan On Delay

time. W signal removed from EFT.

· The gas valve de--energizes and the main burners go out.

· The inducer runs for a 30 second postpurge period.

· The fan stays at Heat speed.

· Timed from the gas valve de--energizing, the circulating fan de--energizes after the selected Heat Fan Delay time expires.

Heating Request with Gas Shut Off:

24 VAC signals applied to W1 terminal of EFT control.

· Inducer motor turns on.

· Followinga3secondprepurge delay, the pilot valve opens and the igniter begins to warm up.

· The igniter glows red--hot for 30 seconds, then turns off.

· The igniter stays off for 25 seconds, then begins to warm--up again.

· The igniter glows red--hot for 30 seconds, then turns off.

· The pilot valve closes 3 seconds after the igniter de--energizes.

· The inducer de--energizes 5 seconds after the pilot valve closes.

· The SmartValve proceeds to soft lockout and flashes error code 6.

· The control exits soft lockout after 5 minutes and begins another ignition sequence.

34

441 01 2611 06

Gas Control Valve Diagnostic Codes (See Figure 40)

OFF = Control not powered Heartbeat = Normal Operation (Standby or call for heat) 1 Flash = Not used 2 Flashes = Low Pressure switch closed when should be open 3 Flashes = LowPressureswitchcircuitwasstillsensedasopen30seconds after the inducer was energized. System

is in 5 minute delay mode, with inducer off. After 5--minute delay,a new ignition sequence will be initiated.

(Note: SV9541M On/Off switch in off position during a c all for heat will generate this diagnostic code) 4 Flashes = Limit switch string open 5 Flashes = Flame sensed out of sequence -- Flame signal still present. 6 Flashes + 1 Note 1 = Soft Lockout --Maximum retry count exceeded (failed to light within 4 trials for ignition) 6 Flashes + 2 Notes 1,2 = SoftLockout --Maximumrecyclecountexceeded -- Last failurewasFlameSense Lost DuringRun,Cycling

Pressure Switch or Blocked Condensate. 6 Flashes + 3 Notes 1,2 = Soft Lockout --Maximum recycle count exceeded -- Last failure was Airflow Proving Circuit Opened

During Run 6 Flashes + 4 Notes 1,2 = Soft Lockout --Maximum recycle count exceeded -- Last failure was Limit Circuit Opened During Run 7 Flashes = Soft Lockout Due to Limit Trips TakingLonger than 2 minutes to Reset; Auto Reset After 1 Hour if

Call for Heat Still Present. Reset by Cycling Call for Heat at Any Time. NOTE1:The6+X designationindicatesacombination offlashcodes:6 flashesshowsthecontrol isinsoftlockout, followedbyX flashes

toindicatethereasonthecontrol went into softlockout.Whenthe6+Xcode is flashing, theSV9541willattempta new ignitionsequence afterafive minutedelayperiod,ifthe callforheatisstill present.Resetofthe thermostatwillinitiateanew ignition sequenceimmediately.

NOTE 2: Any combination of 5 ‘abnormal’ events during a single call for heat will result in soft lockout. An ‘abnormal’ event is a Flame SenseFailureDuringRun,Airflow Proving CircuitOpenDuringRun,orLimit Circuit Open DuringRun.Theflashcodewillindicatewhich was the last ‘abnormal’ event that put the system into the soft lockout state based on the table above.

Figure 40

Supply Pressure Tap (Hidden)

On/Off Switch

INLET

Pilot Pressure Adjustment

Ty picalGas Control ValveHoneywell

Manifold Pressure Adjustment (Hidden)

Diagnostic Light (on some models)

Manifold Pressure Tap

OUTLET

25--22--25a

441 01 2611 06

35

36

441 01 2611 06

Save This Manual For Future Reference

Models

N8MPN050B12A1 N8MPL050B12A1 N8MPN075B12A1 N8MPL075B12A1 N8MPN075F16A1 N8MPL075F16A1 N8MPN100F14A1 N8MPL100F20A1 N8MPN100F20A1 N8MPL100J22A1 N8MPN100J22A1 N8MPL125J20A1 N8MPN125J20A1 N8MPL125J22A1 N8MPN125J22A1

*8MPN050B12A1 *8MPL050B12A1 *8MPN075B12A1 *8MPL075B12A1 *8MPN075F16A1 *8MPL075F16A1 *8MPN100F14A1 *8MPL100F20A1 *8MPN100F20A1 *8MPL100J20A1 *8MPN100J20A1 *8MPL125J20A1 *8MPN125J20A1 *8MPN150J20A1

* Denotes Brand

International Comfort Products, LLC

Lewisburg, TN 37091 Fast Parts Division (866) 380--3278

Ò

441 01 2611 06

37

Model Specifications

Manufacturers Number (Mfr No --SeeRatingPlate) ALL Models (N8MPN)

Specifications

N8MPN 050B12

General

Input(Btuh) Output(Btuh) Temp. Rise (

°

F)

50,000 40,000

35--65 Electrical(Volts/Hz) 115/60 115/60 115/60 115/60 115/60 115/60 115/60 115/60 RatingPlateAmps. 8.8 9.5 10.1 9.6 13.6 12.3 13.6 11.5 GasType Nat LP Nat LP Nat LP Nat LP Nat LP Nat LP Nat LP Nat LP Transformer Size (VA)

T’statHeat Anticipator

40

.1040.10

Gas & Ignition

Std. Main Orifices (No/Size) GasValve HoneywellSV

RegulationType ManifoldPress.(Inch’s WC)

2/#42 2/#54 3/#42 3/#54 3/#42 3/#54 4/#42 4/#54 4/#42 4/#54 4/#42 4/#54 5/#42 5/#54 5/#42 5/#54

9541

SNAP

3.5

10.0 Pilot Orifice Size .018 .011 .018 .011 .018 .011 .018 .011 .018 .011 .018 .011 .018 .011 .018 .011 IgnitionType/Series

Lock--Out Time

HW HSP

NA

Combustion

Flue OutletSize(Inches)

Limits&Controls

ThermalSensor (

°

F)

LimitControl Std.PressureSw. (Part No)

Press(Close) Press(Open)

Fan Control(Type) Fan Control On (Timed--secs) Off

4

300

See PartsList

1013529

--0.69

--0.59

HW ST9160

30

60,100,140,180

Blower Data

Type & Size MotorType/H.p. Cap. Mfd/Volts FilterType (600 FPM) Filter Size (²) (Not Supplied)

1600 CFM and over# Min.CoolCap.(Tons) Max.CoolCap.(Tons)

11- -8

1

PSC/

/

10/370

Washable

14x25x1

-- --

1.5 3

2

Gas Conversion Kits

Nat toLP NAHL002LP or*1160991 LP to Nat NAHF002NG,*1009510

* MustbeorderedfromService Parts

Note: Two side filter racks (left and right) required for upflow applications. Side returns are not permitted with downflow or horizontal furnace applications.

N8MPN 075B12

75,000 60,000

35--65

N8MPN 075F16

75,000 60,000

25--55

N8MPN 100F14

100,000

80,000 30--60

40

.1040.1040.1040.1040.1040.10

9541

SNAP

3.5

HW HSP

NA

SNAP

10.0

SNAP

3.5

HW HSP

NA

SNAP

10.0

9541

SNAP

3.5

HW HSP

NA

4 4 4

300

See PartsList

1013529

--0.69

--0.59

HW ST9160

30

60,100,140,180

11- -8

1

PSC/

/

2

7.5/370

Washable

14x25x1

-- --

1.5 3

300

See PartsList

1013529

--0.69

--0.59

HW ST9160

30

60,100,140,180

11- -10

1

PSC/

/

2

10/370

Washable

16x25x1

16x25x1(2)

3 4

300

See PartsList

1013529

--0.69

--0.59

HW ST9160

30

60,100,140,180

11- -10

PSC/

7.5/370

Washable

16x25x1

-- -2

3.5

9541

SNAP

10.0

1

/

2

N8MPN 100F20

100,000

80,000

35--65

N8MPN

100J22

100,000

81,000

30--60

40 .1040.1040.1040.10

9541

SNAP

10.0

9541

SNAP

3.5

HW HSP

NA

SNAP

3.5

HW HSP

NA

4 4

300

See PartsList

1013529

--0.69

--0.59

HW ST9160

30

60,100,140,180

11- -10

1

PSC/

/

2

10/370

Washable 16x25x1(2) 16x25x1(2)

3 5

300

See PartsList

1013529

--0.69

--0.59

HW ST9160

30

60,100,140,180

11- -10

PSC/

40/370

Washable

20x25x1

16x25x1(2)

3

5.5

9541

SNAP

10.0

3

/

4

N8MPN 125J20

125,000 100,000

30--60

N8MPN

125J22

125,000 100,000

30--60

40

.1040.1040.1040.10

9541

SNAP

10.0

9541

SNAP

3.5

HW HSP

NA

SNAP

3.5

HW HSP

NA

4 4

300

See PartsList

1013529

--0.69

--0.59

HW ST9160

30

60,100,140,180

11- -10

1

PSC/

/

2

10/370

Washable

20x25x1

16x25x1(2)

3 5

300

See PartsList

1013529

--0.69

--0.59

HW ST9160

30

60,100,140,180

11- -10

PSC/

40/370

Washable

20x25x1

16x25x1(2)

3

5.5

9541

SNAP

10.0

3

/

4

38

THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE

441 01 2611 06

Manufacturers Number (Mfr No --SeeRatingPlate) ALL Models (N8MPL)

Specifications

N8MPL 050B12

General

Input(Btuh) Output(Btuh) Temp. Rise (

°

F)

50,000 40,000

35--65 Electrical(Volts/Hz) 115/60 115/60 115/60 115/60 115/60 115/60 115/60 RatingPlateAmps/ 8.8 9.5 10.1 13.6 12.3 13.6 11.5 GasType Nat LP Nat LP Nat LP Nat LP Nat LP Nat LP Nat LP Transformer Size (VA)

T’statHeat Anticipator

40

.10

40

.10

Gas & Ignition

Std. Main Orifices (No/Size) GasValve HoneywellSV

RegulationType ManifoldPress.(Inch’s WC)

2/#42 2/#54 3/#42 3/#54 3/#42 3/#54 4/#42 4/#54 4/#42 4/#54 5/#42 5/#54 5/#42 5/#54

9541

3.5

9541

SNAP

10.0

SNAP

Pilot Orifice Size .018 .011 .018 .011 .018 .011 .018 .011 .018 .011 .018 .011 .018 .011 IgnitionType/Series

Lock--Out Time

HW HSP

NA

Combustion

Flue OutletSize(Inches)

Limits&Controls

ThermalSensor (

°

F)

LimitControl Std.PressureSw. (Part No)

Press(Close) Press(Open)

Fan Control(Type) Fan Control On (Timed--secs) Off

4

300

See PartsList

1013529

--0.69

--0.59

HW ST9160

30

60,100,140,180

Blower Data

Type & Size MotorType/H.p. Cap. Mfd/Volts FilterType (600 FPM) Filter Size (²) (Not Supplied)

1600 CFM and over# Min.CoolCap.(Tons) Max.CoolCap.(Tons)

11- -8

1

PSC/

10/370

Washable

14x25x1

-- --

1.5 3

/

2

Gas Conversion Kits

Nat toLP NAHL002LP or*1160991 LP to Nat NAHF002NG,*1009510

* MustbeorderedfromService Parts

Note: Two side filter racks (left and right) required for upflow applications. Side returns are not permitted with downflow or horizontal furnace applications.

N8MPL 075B12

75,000 60,000

35--65

40

.10

9541

SNAP

3.5

40

.10

9541

SNAP

10.0

HW HSP

NA

4 4

300

See PartsList

1013529

--0.69

--0.59

HW ST9160

30

60,100,140,180

11- -8

1

PSC/

/

2

7.5/370

Washable

14x25x1

-- --

1.5 3

N8MPL 075F16

75,000 60,000

25--55

40

.10

9541

SNAP

3.5

40 .10

9541

SNAP

10.0

HW HSP

NA

300

See PartsList

1013529

--0.69

--0.59

HW ST9160

30

60,100,140,180

11- -10

1

PSC/

/

2

10/370

Washable

16x25x1

16x25x1(2)

3 4

N8MPL 100F20

100,000

80,000

35--65

40

.10

9541

SNAP

3.5

40

.10

9541

SNAP

10.0

HW HSP

NA

4 4

300

See PartsList

1013529

--0.69

--0.59

HW ST9160

30

60,100,140,180

11- -10

1

PSC/

/

2

10/370

Washable

16x25x1

16x25x1(2)

3 5

N8MPL 100J22

100,000

80,000

30--60

40

.10

9541

SNAP

3.5

40

.10

9541

SNAP

10.0

HW HSP

NA

300

See PartsList

1013529

--0.69

--0.59

HW ST9160

30

60,100,140,180

11- -10

3

PSC/

/

4

40/370

Washable

20x25x1

16x25x1(2)

3

5.5

N8MPL 125J20

125,000 100,000

30--60

40

.10

9541

SNAP

3.5

40

.10

9541

SNAP

10.0

HW HSP

NA

4 4

300

See PartsList

1013529

--0.69

--0.59

HW ST9160

30

60,100,140,180

11- -10

1

PSC/

/

2

10/370

Washable

20x25x1

16x25x1(2)

3 5

N8MPL 125J22

125,000 100,000

30--60

40

.10

9541

SNAP

3.5

40

.10

9541

SNAP

10.0

HW HSP

NA

300

See PartsList

1013529

--0.69

--0.59

HW ST9160

30

60,100,140,180

11- -10

3

PSC/

/

4

40/370

Washable

20x25x1

16x25x1(2)

3

5.5

441 01 2611 06

THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE

39

Manufacturers Number (Mfr No --SeeRatingPlate) ALL Models (*8MPN)

Specifications

*8MPN

050B12

General

Input(Btuh) Output(Btuh) Temp. Rise (

°

F)

50,000 40,000

35--65 Electrical(Volts/Hz) 115/60 115/60 115/60 115/60 115/60 115/60 115/60 115/60 RatingPlateAmps. 8.8 9.5 10.1 9.9 13.9 12.6 13.9 13.9 GasType Nat LP Nat LP Nat LP Nat LP Nat LP Nat LP Nat LP Nat LP Transformer Size (VA)

T’statHeat Anticipator

40

.3040.30

Gas & Ignition

Std. Main Orifices (No/Size) GasValve HoneywellSV

RegulationType ManifoldPress.(Inch’s WC)

2/#42 2/#54 3/#42 3/#54 3/#42 3/#54 4/#42 4/#54 4/#42 4/#54 4/#42 4/#54 5/#42 5/#54 6/#42 6/#54

9541

SNAP

3.5

10.0 Pilot Orifice Size .018 .011 .018 .011 .018 .011 .018 .011 .018 .011 .018 .011 .018 .011 .018 .011 IgnitionType/Series

Lock--Out Time

HW HSP

NA

Combustion

Flue OutletSize(Inches)

Limits&Controls

ThermalSensor ( LimitControl Auxiliary Limit (

°

F)

°

F)

Std.PressureSw. (Part No)

Press(Close) Press(Open)

Fan Control(Type) Fan Control On (Timed--secs) Off

4

300

See PartsList

130

1013529

--0.69

--0.59

HW ST9160

30

60,100,140,180

Blower Data

Type & Size MotorType/H.p. Cap. Mfd/Volts FilterType (600 FPM) Filter Size (²) (Not Supplies)

1600 CFM and over# Min.CoolCap.(Tons) Max.CoolCap.(Tons)

11- -8

1

PSC/

/

10/370

Washable

14x25x1

-- --

1.5 3

2

Gas Conversion Kits

Nat toLP NAHL002LP or*1160991 LP to Nat NAHF002NG,*1009510

* MustbeorderedfromService Parts

Note: Two side filter racks (left and right) required for upflow applications. Side returns are not permitted with downflow or horizontal furnace applications.

*8MPN

075B12

75,000 60,000

30--60

*8MPN

075F16

75,000 60,000

30--60

*8MPN

100F14

100,000

81,000 35--65

40

.3040.3040.3040.3040.3040.30

9541

SNAP

3.5

HW HSP

NA

SNAP

10.0

SNAP

3.5

HW HSP

NA

SNAP

10.0

9541

SNAP

3.5

HW HSP

NA

4 4 4

300

See PartsList

130

1013529

--0.69

--0.59

HW ST9160

30

60,100,140,180

11- -8

1

PSC/

/

2

7.5/370

Washable

14x25x1

-- --

1.5 3

300

See PartsList

130

1013529

--0.69

--0.59

HW ST9160

30

60,100,140,180

11- -10

1

PSC/

/

2

10/370

Washable

16x25x1

16x25x1(2)

3 4

300

See PartsList

130

1013529

--0.69

--0.59

HW ST9160

30

60,100,140,180

11- -10

PSC/

7.5/370

Washable

16x25x1

-- -2

3.5

9541

SNAP

10.0

1

/

2

*8MPN

100F20

100,000

81,000

35--65

*8MPN 100J20

100,000

81,000

35--65

40 .3040.3040.3040.30

9541

SNAP

10.0

9541

SNAP

3.5

HW HSP

NA

SNAP

3.5

HW HSP

NA

4 4

300

See PartsList

130

1013529

--0.69

--0.59

HW ST9160

30

60,100,140,180

11- -10

1

PSC/

/

2

10/370

Washable

16x25x1

16x25x1(2)

3 5

300

See PartsList

130

1013529

--0.69

--0.59

HW ST9160

30

60,100,140,180

11- -10

PSC/

10/370

Washable

20x25x1

16x25x1(2)

3 5

9541

SNAP

10.0

1

/

2

*8MPN

125J20

125,000 101,000

35--65

*8MPN 150J20

150,000 121,000

35--65

40

.3040.3040.3040.30

9541

SNAP

10.0

9541

SNAP

3.5

HW HSP

NA

SNAP

3.5

HW HSP

NA

4 4

300

See PartsList

130

1013529

--0.69

--0.59

HW ST9160

30

60,100,140,180

11- -10

1

PSC/

/

2

10/370

Washable

20x25x1

16x25x1(2)

3 5

300

See PartsList

130

1013529

--0.69

--0.59

HW ST9160

30

60,100,140,180

12--12

PSC/

40/370

Washable

20x25x1

16x25x1(2)

3 5

9541

SNAP

10.0

3

/

4

40

THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE

441 01 2611 06

Manufacturers Number (Mfr No --SeeRatingPlate) ALL Models (*8MPL)

Specifications

*8MPL

050B12

General

Input(Btuh) Output(Btuh) Temp. Rise (

°

F)

50,000 40,000

35--65 Electrical(Volts/Hz) 115/60 115/60 115/60 115/60 115/60 115/60 RatingPlateAmps. 8.8 9.5 10.1 13.9 12.6 13.9 GasType Nat LP Nat LP Nat LP Nat LP Nat LP Nat LP Transformer Size (VA)

T’statHeat Anticipator

40

.30

40

.30

Gas & Ignition

Std. Main Orifices (No/Size) GasValve HoneywellSV

RegulationType ManifoldPress.(Inch’s WC)

2/#42 2/#54 3/#42 3/#54 3/#42 3/#54 4/#42 4/#54 4/#42 4/#54 5/#42 5/#54

9541

SNAP

3.5

9541

SNAP

10.0 Pilot Orifice Size .018 .011 .018 .011 .018 .011 .018 .011 .018 .011 .018 .011 IgnitionType/Series

Lock--Out Time

HW HSP

NA

Combustion

Flue OutletSize(Inches)

Limits&Controls

ThermalSensor ( LimitControl Auxiliary Limit (

°

F)

°

F)

Std.PressureSw. (Part No)

Press(Close) Press(Open)

Fan Control(Type) Fan Control On delay (Timed--secs) Offdelay

4

300

See PartsList

130

1013529

--0.69

--0.59

HW ST9160

30

60,100,140,180

Blower Data

Type & Size MotorAmps/Rpm MotorType/H.p. Cap. Mfd/Volts FilterType Filter Size (²) (Not Supplied)

1600 CFM and over# Min.CoolCap.(Tons) Max.CoolCap.(Tons)

11- -8

10.3/1100

1

PSC/

10/370

Washable

14x25x1

-- --

1.5 3

/

2

Gas Conversion Kits

Nat toLP NAHL002LP or*1160991 LP to Nat NAHF002NG,*1009510

* MustbeorderedfromService Parts

# Two side filter racks (left and right) required for upflow applications. Side returns are not permitted with downflow or horizontal furnace applications.

*8MPL

075B12

75,000 60,000 30--60

40 .30

9541

SNAP

3.5

40

.30

9541

SNAP

10.0

HW HSP

NA

4 4

300

See PartsList

130

1013529

--0.69

--0.59

HW ST9160

30

60,100,140,180

11- -8

8/1050

1

PSC/

/

2

7.5/370

Washable

14x25x1

-- --

1.5 3

*8MPL

075F16

75,000 60,000

30--60

40

.30

9541

SNAP

3.5

HW HSP

NA

300

See PartsList

130

1013529

--0.69

--0.59

HW ST9160

30

60,100,140,180

11- -10

10.3/1100

1

PSC/

/

10/370

Washable

16x25x1

16x25x1(2)

3 4

40

.30

9541

SNAP

10.0

2

*8MPL

100F20

100,000

81,000

35--65

40

.30

9541

SNAP

3.5

40

.30

9541

SNAP

10.0

HW HSP

NA

4 4

300

See PartsList

130

1013529

--0.69

--0.59

HW ST9160

30

60,100,140,180

11- -10

10/1050

1

PSC/

/

2

10/370

Washable

16x25x1

16x25x1(2)

3 5

*8MPL

100J20

100,000

81,000

35--65

40 .30

9541

SNAP

3.5

HW HSP

NA

300

See PartsList

130

1013529

--0.69

--0.59

HW ST9160

30

60,100,140,180

11- -10

11.9/900

1

PSC/

/

10/370

Washable

20x25x1

16x25x1(2)

3 5

40

.30

9541

SNAP

10.0

2

*8MPL

125J20

125,000 101,000

35--65

40 .30

9541

SNAP

9541

SNAP

3.5

HW HSP

NA

4

300

See PartsList

130

1013529

--0.69

--0.59

HW ST9160

30

60,100,140,180

11- -10

10/1050

1

PSC/

/

2

10/370

Washable

20x25x1

16x25x1(2)

3 5

40 .30

10.0

441 01 2611 06

THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE

41

15. Circulation Air Blower Data

N8MPN/L050B12 & *8MPN/L050B12 * Denotes Brand

Inches of W.C.

Exterrnal Static Pressure

Air Delivery in Cubic Feet per Minute (C.F.M.)

TAP LOW MED L MED H HIGH

.10 472 704 1167 1387 .30 365 638 1102 1288 .50 290 572 1035 1194 .70 209 522 939 1070 .90 463 443 820 937

1.00 413 370 753 858

(Furnace Rated @0.5²²²² WC ESP)

*8MPN/L100J20 * Denotes Brand

Inches of W.C.

Exterrnal Static Pressure

Air Delivery in Cubic Feet per Minute (C.F.M.)

TAP LOW MED L MED H HIGH

.10 773 1045 1453 2147 .30 755 1037 1469 2128 .50 712 1020 1459 2078 .70 647 979 1424 1963 .90 554 894 1347 1795

1.00 497 828 1262 1705

(Furnace Rated @0.5²²²² WC ESP)

N8MPN/L075B12 & *8MPN/L075B12 * Denotes Brand

Inches of W.C.

Exterrnal Static Pressure

Air Delivery in Cubic Feet per Minute (C.F.M.)

TAP LOW MED L MED H HIGH

.10 695 963 1220 1559 .30 644 928 1183 1463 .50 588 873 1118 1361 .70 540 771 1017 1239 .90 463 675 900 1083

1.00 413 615 835 998

(Furnace Rated @0.5²²²² WC ESP)

N8MPN/L075F16 & *8MPN/L075F16 * Denotes Brand

Inches of W.C.

Exterrnal Static Pressure

Air Delivery in Cubic Feet per Minute (C.F.M.)

TAP LOW MED L MED H HIGH

.10 598 841 1427 1861 .30 400 748 1384 1770 .50 289 667 1343 1677 .70 236 582 1254 1547 .90 ---- -- 477 1129 1360

1.00 -- -- -- 436 1016 1262

(Furnace Rated @0.5²²²² WC ESP)

N8MPN100F14 & *8MPN100F14 * Denotes Brand

Inches of W.C.

Exterrnal Static Pressure

Air Delivery in Cubic Feet per Minute (C.F.M.)

TAP LOW MED L MED H HIGH

.10 770 949 1328 1760 .30 648 873 1235 1675 .50 544 772 1115 1551 .70 457 684 1036 1404 .90 361 572 895 1215

1.00 308 507 811 1093

(Furnace Rated @0.5²²²² WC ESP)

N8MPN/L100F20 & *8MPN/L100F20 * Denotes Brand

Air Delivery in Cubic Feet per Minute (C.F.M.)

TAP LOW MED L MED H HIGH

.10 831 1125 1582 2216 .30 814 1123 1588 2179 .50 781 1117 1577 2074 .70 717 1053 1541 1909

Inches of W.C.

.90 609 964 1373 1745

Exterrnal Static Pressure

NOTE: 075F16 -- Reduce airflow by 5% if bottom return only

1.00 561 888 1307 1641

100F20 -- Reduce airflow by 10% if bottom return only 125J20 -- Reduce airflow by 5% if bottom return only

(Furnace Rated @0.5²²²² WC ESP)

N8MPN/L100J22

Inches of W.C.

Exterrnal Static Pressure

Air Delivery in Cubic Feet per Minute (C.F.M.)

TAP LOW MED L MED H HIGH

.10 1785 1997 2292 2519 .30 1741 1941 2206 2410 .50 1674 1861 2097 2284 .70 1581 1749 1965 2121 .90 1428 1597 1793 1928

1.00 1326 1478 1667 1814

(Furnace Rated @0.5²²²² WC ESP)

N8MPN/L125J20 & *8MPN/L125J20 * Denotes Brand

Inches of W.C.

Exterrnal Static Pressure

Air Delivery in Cubic Feet per Minute (C.F.M.)

TAP LOW MED L MED H HIGH

.10 860 1149 1666 2147 .30 836 1158 1577 2126 .50 805 1140 1561 2148 .70 758 1081 1516 1922 .90 661 1009 1428 1767

1.00 614 925 1357 1663

(Furnace Rated @0.5²²²² WC ESP)

N8MPN/L125J22

Inches of W.C.

Exterrnal Static Pressure

Air Delivery in Cubic Feet per Minute (C.F.M.)

TAP LOW MED L MED H HIGH

.10 1901 2121 2362 2463 .30 1833 2033 2244 2385 .50 1745 1936 2100 2217 .70 1624 1773 1894 2033 .90 1442 1569 1714 1821

1.00 1329 1455 1583 1685

(Furnace Rated @0.5²²²² WC ESP)

*8MPN150J20 * Denotes Brand

Air Delivery in Cubic Feet per Minute (C.F.M.)

TAP LOW MED L MED H HIGH

.10 1656 1915 2168 2385 .30 1583 1787 2090 2335 .50 1507 1697 1997 2212

Inches of W.C.

.70 1390 1596 1856 2085

Exterrnal Static Pressure

NOTE: N8MPN/L125J22 -- Reduce airflow by 10% if bottom return only

*8MPN/L150J20 -- Reduce airflow by 10% if bottom return only

.90 1212 1445 1654 1898

1.00 1125 1337 1561 1777

(Furnace Rated @0.5²²²² WC ESP)

42

THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE

441 01 2611 06

Wiring Diagram N8MPN/L, *8MPN/L

441 01 2611 06

43

Parts for N8MPN/L

A

2

CC

D

X

BB

18

N

P

L

Z

W

17

S

14

11

R

U

10

16

15

12

13

AA

16

S

V

T

1

B

C

9

M

G

DD

F

8

J

7

6

H

E

3

4

5

K

44

25--24--32a--1

441 01 2611 06

Replacement Parts - N8MPN (Natural Gas)

K

D

P

Models -- N8MPN050B12A1, N8MPN075B12A1, N8MPN075F16A1, N8MPN100F14A1, N8MPN100F20A1, N8MPN100J22A1,

N8MPN125J20A1, N8MPN125J22A1

Replacement part supplied will be current active part. For parts not listed, consult place of purchase.

ey

No.

1 Heat Exchanger 1013623

2 Switch, Pressure 1013529 1 1 1 1 1 1 1 1 3 Wheel, Blower 1013011

4

5 Mtr, Blor 1/1151/2CCW

6 Capacitor 1014397

7 Transformer 1012722 1 1 1 1 1 1 1 1 8 Control, Fan Timer 1014460 1 1 1 1 1 1 1 1 9 Switch, Interlock 1012351 1 1 1 1 1 1 1 1

10 Burner Assembly 1008723

11 Pilot/Igniter 1008731 1 1 1 1 1 1 1 1 12 Ignitor/Sensor w/Clip 1009524 1 1 1 1 1 1 1 1 13 Orifice, Pilot .018 503211 1 1 1 1 1 1 1 1 14 Orifice, Burner # 42 1011351 2 3 3 4 4 4 5 5 15 Valve, Gas 1013350 1 1 1 1 1 1 1 1 16 Switch, Limit (Rollout) 1013102 2 2 2 2 2 2 2 2 17 Switch, Limit (Main) 1008417

18 Blower, Combustion 1014433 1 1 1 1 1 1 1 1

escription

Functional Parts

Mount, Motor kit*

1/115 1/115 1/115

1

/2CCW

1

/2CCW

3

/4CCW

art

Number

1013624 1013625 1013626 1013627 1013628

1011420 1014824

1014823 1014822

1172490 1172487 1172488 1172489

1014396 1014395

1008724 1008725 1008726

1320362

34335000

050B 12A1

1

--

1

-1

--

-1

--

-1

--

1

--

-1

--

075B 12A1

--

1

--

1

-1

--

-1

--

-1

--

-1

--

-1

--

075F

16A1

--

1

--

1

--

1 1

--

1

--

1

--

1

100F

14A1

--

-1

--

-1

--

-1

--

-1

--

-1

--

1

--

N8MPN

100F 20A1

--

-1

--

-1

--

-1

--

-1

--

1

--

100J

22A1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

125J

20A1

--

-1

--

-1

--

-1

--

-1

125J

22A1

--

1

-1

--

-1

--

-1

--

-1

--

*See Table below for bellyband location on motor

Bellyband Location

on Motor Model N8MPN A(in.) 050B12A1 1.38² 075B12A1 1.38² 075F16A1 1.38² 100F14A1 1.38² 100F20A1 1.81² 100J22A1 1.65² 125J20A1 1.81² 125J22A1 1.65²

441 01 2611 06

A

45

Replacement Parts - N8MPN (Natural Gas)

K

D

P

Models -- N8MPN050B12A1, N8MPN075B12A1, N8MPN075F16A1, N8MPN100F14A1, N8MPN100F20A1, N8MPN100J22A1, N8MPN125J20A1, N8MPN125J22A1

Replacement part supplied will be current active part. For parts not listed, consult place of purchase.

ey

No.

A Panel, Top 1013995

B Box, Junction 1012349 1 1 1 1 1 1 1 1 C Cover,Junction box 1012350 1 1 1 1 1 1 1 1 D Partition,Blower 1014009

E Housing,Blower 1012972

F Hanger,Blower 1012328 2 2 2 2 2 2 2 2 G Panel, Blower Cutoff 721020013

H Clamp,Capacitor 1170643

J Bracket,ControlMounting 1013677 1 1 1 1 1 1 1 1

K Tube, Pilot 1014021

L Door, Blower 1014380

M Bracket,Door 1014271

N Door,Louver 1014102

P Manifold,Gas 1012787

R Bracket, Pilot 1010901 1 1 1 1 1 1 1 1 S Bracket,ManifoldSupport 1012377 2 2 2 2 2 2 2 2 T Top,BurnerBox 1013702

U Bracket,Burner Box Sides 1012532 2 2 2 2 2 2 2 2 V Baffle,BurnerBox 1012338

W Bottom,BurnerBox 1012334

X Collector Box 1013010

Z Gasket, CombustionBlower 1013540 1 1 1 1 1 1 1 1

escription

Non-FunctionalParts

art

Number

1013996 1013997

1014010

1014011

1012888

721020008

1014315

1014023 1014022

1014381 1014382

1014272 1014273

1014107

1014112

1012788 1012789 1012790

1013703 1013704

1012339 1012340

1012335 1012336

1012735 1012736 1012739 1012738 1012740

050B 12A1

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

075B 12A1

1

--

1

--

-1

--

1

-1

--

-1

--

-1

--

-1

--

-1

--

1

--

1

--

-1

--

-1

--

075F 16A1

-1

--

-1

--

-1

1

--

-1

--

-1

--

-1

--

-1

--

1

--

1

--

-1

--

-1

--

100F 14A1

-1

--

-1

--

-1

1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

N8MPN

100F 20A1

-1

--

-1

--

-1

1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

100J

22A1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

125J

20A1

--

-1

--

-1

1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

125J

22A1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

46

441 01 2611 06

Replacement Parts - N8MPN (Natural Gas)

K

D

P

Models -- N8MPN050B12A1, N8MPN075B12A1, N8MPN075F16A1, N8MPN100F14A1, N8MPN100F20A1, N8MPN100J22A1, N8MPN125J20A1, N8MPN125J22A1

Replacement part supplied will be current active part. For parts not listed, consult place of purchase.

ey

No.

AA Partition, Frt HtExchanger 1013780

BB Gaskets, Heat Exchanger 1013991

CC Tubing, Silicone 1014519 1 1 1 1 1 1 1 1

)( Parts Not Illustrated

)( Fuse, 5 Amp 1083348 1 1 1 1 1 1 1 1 )( Harness, Wire 1013695 1 1 1 1 1 1 1 1 )( Door Screw 1014488 4 4 4 4 4 4 4 4 )( Door Screw Grommet 1171990 4 4 4 4 4 4 4 4 )( Manual, Installation& Tech 44101261105 1 1 1 1 1 1 1 1 )( Manual, Users 44102201004 1 1 1 1 1 1 1 1

escription

Non-FunctionalParts

art

Number

1013781 1013782 1013783 1013784 1013785

1013992 1013993 1013994

050B 12A1

1

--

2

--

075B 12A1

-1

--

-2

--

075F 16A1

--

-1

--

-2

--

100F 14A1

--

-1

--

-2

--

N8MPN

100F 20A1

--

-1

--

-2

--

100J 22A1

--

1

--

2

--

125J

20A1

--

-1

--

-2

125J

22A1

--

1

--

2

441 01 2611 06

47

Replacement Parts - N8MPL (Natural Gas)

Key

Description

Par

t

Models -- N8MPL050B12A1, N8MPL075B12A1, N8MPL075F16A1, N8MPL100F20A1, N8MPL100J22A1, N8MPL125J20A1,

N8MPL125J22A1

Replacement part supplied will be current active part. For parts not listed, consult place of purchase.

No.

1 Heat Exchanger 1014322

2 Switch, Pressure 1013529 1 1 1 1 1 1 1 3 Wheel, Blower 1013011

4

Mount, Motor kit*

5 Mtr, Blower 1/1151/2CCW

6 Capacitor 1014397

7 Transformer 1012722 1 1 1 1 1 1 1 8 Control, Fan Timer 1014460 1 1 1 1 1 1 1 9 Switch, Interlock 1012351 1 1 1 1 1 1 1

10 Burner Assembly 1008723

11 Pilot/Igniter 1008731 1 1 1 1 1 1 1 12 Ignitor/Sensor with Clip 1009524 1 1 1 1 1 1 1 13 Orifice, Pilot .018 503211 1 1 1 1 1 1 1 14 Orifice, Burner # 42 1011351 2 3 3 4 4 5 5 15 Valve, Gas 1013350 1 1 1 1 1 1 1 16 Switch, Limit (Rollout) 1013102 2 2 2 2 2 2 2 17 Switch, Limit (Main) 1008417

18 Blower,Combustion 1013517

Description Part

Functional

1/115 1/115 1/115

1

/2CCW

1

/2CCW

3

/4CCW

Number

1014323 1014324 1014325 1014326 1014327

1011420

1014824 1014823 1014822

1172490 1172487 1172488 1172489

1014396 1014395

1008724 1008725 1008726

1320362

34335000

1014433

050B12A1 075B12A1 075F16A1 100F20A1 100J22A1 125J20A1 125J22A1

1

--

1

-1

--

-1

--

-1

--

1

--

-1

--

-1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

-1

--

-1

--

-1

1

--

-1

--

-1

--

-1

N8MPL

--

-1

--

-1

--

-1

--

-1

--

1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

*See Table below for bellyband location on motor

Bellyband Location

on Motor Model N8MPL A(in.) 050B12A1 1.38² 075B12A1 1.38² 075F16A1 1.38² 100F20A1 1.81² 100J22A1 1.65² 125J20A1 181² 125J22A1 1.65²

48

A

441 01 2611 06

Replacement Parts - N8MPL (Natural Gas)

K

D

P

Models -- N8MPL050B12A1, N8MPL075B12A1, N8MPL075F16A1, N8MPL100F20A1, N8MPL100J20A1, N8MPL100J22A1,

N8MPL125J20A1, N8MPL125J22A1

Replacement part supplied will be current active part. For parts not listed, consult place of purchase.

ey

No.

A Panel, Top 1013995

B Box, Junction 1012349 1 1 1 1 1 1 1 C Cover, Junction box 1012350 1 1 1 1 1 1 1 D Partition, Blower 1014009

E Housing, Blower 1012972

F Hanger, Blower 1012328 2 2 2 2 2 2 2

G Panel, Blower Cutoff 721020013

H Clamp, Capacitor 1170643

J Bracket, Control Mounting 1013677 1 1 1 1 1 1 1

K Tube, Pilot 1014021

L Door, Blower 1014380

M Bracket, Door 1014271

N Door, Louver 1014102

P Manifold, Gas 1012787

R Bracket, Pilot 1010901 1 1 1 1 1 1 1 S Bracket, Manifold Support 1012377 2 2 2 2 2 2 2 T Top, Burner Box 1013702

U Bracket, Burner Box Sides 1012532 2 2 2 2 2 2 2 V Baffle, Burner Box 1012338

W Bottom, Burner Box 1012334

X Collector Box 1013010

Z Gasket, Combustion Blower 1013540 1 1 1 1 1 1 1

escription

Functional

art

Number

1013996 1013997

1014010 1014011

1012888

721020008

1014315

1014023 1014022

1014381 1014382

1014272 1014273

1014107 1014112

1012788 1012789 1012790

1013703 1013704

1012339 1012340

1012335 1012336

1012735 1012736 1012739 1012738 1012740

050B 12A1

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

075B 12A1

1

--

1

--

-1

--

1

-1

--

-1

--

-1

--

-1

--

-1

--

1

--

1

--

-1

--

-1

--

075F

16A1

-1

--

-1

--

-1

1

--

-1

--

-1

--

-1

--

-1

--

-1

--

1

--

1

--

-1

--

-1

--

N8MPL

100F 20A1

--

1

--

1

--

1

--

1 1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

100J

22A1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

125J 20A1

--

1

--

1

--

1

--

1 1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

125J 22A1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

441 01 2611 06

49

Replacement Parts - N8MPL (Natural Gas)

K

D

P

Models -- N8MPL050B12A1, N8MPL075B12A1, N8MPL075F16A1, N8MPL100F20A1, N8MPL100J20A1, N8MPL100J22A1,

N8MPL125J20A1, N8MPL125J22A1

Replacement part supplied will be current active part. For parts not listed, consult place of purchase.

ey

No.

AA Partition, Frt Ht Exchanger 1013780

BB Gaskets, Heat Exchanger 1013991

CC Tubing, Silicone 1014519 1 1 1 1 1 1 1 1 DD Baffle, Nox 1014019 2 3 3 4 4 4 5 5

)( Part Not Illustrated

)( Fuse, 5 Amp 1083348 1 1 1 1 1 1 1 1 )( Harness, Wire 1013695 1 1 1 1 1 1 1 1 )( Door Screw 1014488 4 4 4 4 4 4 4 4 )( Door Screw Grommet 1171990 4 4 4 4 4 4 4 4 )( Manual, Installation & Tech 44101261105 1 1 1 1 1 1 1 1 )( Manual, Users 44102201004 1 1 1 1 1 1 1 1

escription

Functional

Number

1013781 1013782 1013783 1013784 1013785

1013992 1013993 1013994

art

050B 12A1

1

--

2

--

075B 12A1

--

1

--

2

--

075F

16A1

--

1

--

2

--

100F 20A1

--

-1

--

-2

--

N8MPL

100J

20A1

--

1

--

2

--

100J 22A1

--

1

--

2

--

125J

20A1

--

-1

--

-2

125J 22A1

--

-1

--

-2

50

441 01 2611 06

Parts for *8MPN/L

A

2

CC

X

18

N

P

R

BB

17

16

Z

U

S

15

14

11

12

13

AA

10

V

T

16

1

B

C

DD

W

U

9

F

S

G

D

M

E

F

3

L

441 01 2611 06

K

8

6

H

7

J

4

5

25--23--49a

51

Replacement Parts - *8MPN (Natural Gas)

K

D

P

Models -- *8MPN050B12A1, *8MPN075B12A1, *8MPN075F16A1, *8MPN100F14A1, *8MPN100F20A1, *8MPN100J20A1,

*8MPN125J20A1, *8MPN150J20A1

Replacement part supplied will be current active part. For parts not listed, consult place of purchase.

ey

No.

1 Heat Exchanger 1013551

2 Switch, Pressure 1013529 1 1 1 1 1 1 1 1 3 Wheel, Blower 1013011

4

Mount, Motor kit*

5 Motor, Blr 1/1151/2CCW

6 Capacitor 1014397

7 Transformer 1012722 1 1 1 1 1 1 1 1 8 Control, Fan Timer 1014460 1 1 1 1 1 1 1 1 9 Switch, Interlock 1012351 1 1 1 1 1 1 1 1

10 Burner Assembly 1008723

11 Pilot/Igniter 1008731 1 1 1 1 1 1 1 1 12 Ignitor/Sensor with Clip 1009524 1 1 1 1 1 1 1 1 13 Orifice, Pilot .018 503211 1 1 1 1 1 1 1 1 14 Orifice, Burner # 42 1011351 2 3 3 4 4 4 5 6 15 Valve, Gas 1013350 1 1 1 1 1 1 1 1 16 Switch, Limit (Rollout) 1013102 2 2 2 2 2 2 2 2 17 Switch, Limit (Main) 1320362

18 Blower, Combustion 1014433

escription

Functional

1

1/115

1

1/115

3

1/115

/2CCW /2CCW /4CCW

art

Number

1013519 1013550 1013552 1013553 1013554 1013555

1011420 1011433

1014824 1014823 1014822

1172490 1172487 1172488 1172489

1014396 1014395

1008724 1008725 1008726 1009179

1065294 1008417

34335000

1013517

050B 12A1

1

--

1

--

-1

--

-1

--

-1

--

1

--

-1

--

075B 12A1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

075F

16A1

--

-1

--

-1

--

-1

1

--

-1

--

-1

--

-1

--

100F

14A1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

1

--

*8MPN

100F 20A1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

1

--

-1

--

100J 20A1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

1

--

-1

--

125J 20A1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

150J

20A1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

*See Table below for bellyband location on motor

Bellyband Location

on Motor Model *8MPN A(in.) 050B12A1 1.38² 075B12A1 1.38² 075F16A1 1.38² 100F14A1 1.38² 100F20A1 1.81² 100J20A1 1.81² 125J20A1 1.81² 150J20A1 1.65²

52

A

441 01 2611 06

Replacement Parts - *8MPN (Natural Gas)

K

D

P

Models -- *8MPN050B12A1, *8MPN075B12A1, *8MPN075F16A1, *8MPN100F14A1, *8MPN100F20A1, *8MPN100J20A1,

*8MPN125J20A1, *8MPN150J20A1

Replacement part supplied will be current active part. For parts not listed, consult place of purchase.

ey

No.

A Panel, Top 1013982

B Box, Junction 1012349 1 1 1 1 1 1 1 1 C Cover, Junction box 1012350 1 1 1 1 1 1 1 1 D Partition, Blower 1014009

E Housing, Blower 1012972

F Hanger , Blower 1012328 2 2 2 2 2 2 2 2 G Panel, Blower Cutoff 721020013

H Clamp, Capacitor 1170643

J Bracket, Control Mounting 1013677 1 1 1 1 1 1 1 1

K Tube, Pilot 1013596

L Door, Blower (Heil/Arco)

M Bracket, Door 1014271

N Door, Louver (Heil/Arco)

P Manifold, Gas 1013478

R Bracket, Pilot 1010901 1 1 1 1 1 1 1 1 S Bracket, Manifold Support 1012377 2 2 2 2 2 2 2 2 T Top, Burner Box 1013705

U Bracket, Burner Box Sides 1012532 2 2 2 2 2 2 2 2

escription

Functional

(Heil/Arco) (Heil/Arco) (Comfortmaker Only) (Comfortmaker Only) (Comfortmaker Only)

(Tempstar Only) (Tempstar Only) (Tempstar Only)

(Heil/Arco) (Heil/Arco) (Comfortmaker Only) (Comfortmaker Only) (Comfortmaker Only) (Tempstar Only) (Tempstar Only) (Tempstar Only)

art

Number

1013983 1013984

1014010

1014011

1014013

1012888 1012889

721020008 721020015

1014315

1013597 1013598 1013599

1014001 1014375 1014376 1014079 1014349 1014352 1014058 1014068 1014073

1014272 1014273 1014274

1014088 1014091 1014094 1014078 1014081 1014085 1014057 1014067 1014072

1013479 1013480 1013481 1013482

1013015 1013016 1013859

050B 12A1

1

--

1

--

-1

--

1

--

-1

--

1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

1

--

075B 12A1

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

075F 16A1

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

1

--

100F 14A1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

*8MPN

100F 20A1

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

100J

20A1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

*125J

20A1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

150J

20A1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

441 01 2611 06

53

Replacement Parts - *8MPN (Natural Gas)

K

D

P

Models -- *8MPN050B12A1, *8MPN075B12A1, *8MPN075F16A1, *8MPN100F14A1, *8MPN100F20A1, *8MPN100J20A1,

*8MPN125J20A1, *8MPN150J20A1

Replacement part supplied will be current active part. For parts not listed, consult place of purchase.

ey

No.

T Top, Burner Box 1013705

U Bracket, Burner Box Sides 1012532 2 2 2 2 2 2 2 2 V Baffle, Burner Box 1012338

W Bottom, Burner Box 1012334

X Collector Box 1014510

Y RTV, Collector Box 1 1 1 1 1 1 1 1 Z Gasket, Combustion Blower 1013540 1 1 1 1 1 1 1 1

AA Partition, Front Ht Exchanger 1013543

BB Gaskets, Heat Exchanger 1013991

CC Tubing, Silicone 1014520

)( PART NOT ILLUSTRATED

)( Fuse, 5 Amp 1083348 1 1 1 1 1 1 1 1 )( Harness, Wire 1013693 1 1 1 1 1 1 1 1 )( Door Screw 1014488 4 4 4 4 4 4 4 4 )( Door Screw Grommet 1171990 4 4 4 4 4 4 4 4 )( Manual, Installation & Tech 44101261105 1 1 1 1 1 1 1 1 )( Manual, Users 44102201004 1 1 1 1 1 1 1 1

escription

Functional

art

Number

1013015 1013016 1013859

1012339 1012340 1013533

1012335 1012336 1013691

1014511 1014509 1014512 1013486

1013521 1013545 1013546 1013547 1013548 1013549

1013992 1013993 1013994 1012546

1014521

050B 12A1

1

--

1

--

-1

--

-1

--

1

--

-2

--

-1

--

075B 12A1

1

--

1

--

1

--

1

--

1

--

2

--

1

--

075F

16A1

1

--

1

--

-1

--

-1

--

-1

--

-2

--

-1

--

100F

14A1

-1

--

-1

--

-1

--

-1

--

-1

--

-2

--

-1

--

*8MPN

100F 20A1

-1

--

-1

--

-1

--

-1

--

-1

--

-2

--

-1

--

100J 20A1

-1

--

-1

--

-1

--

-1

--

-1

--

-2

--

-1

*125J

20A1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-2

--

-1

150J

20A1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-2

-1

54

441 01 2611 06

Replacement Parts - *8MPL (Natural Gas)

K

D

P

Models -- *8MPL050B12A1, *8MPL075B12A1, *8MPL075F16A1, *8MPL100F20A1, *8MPL100J20A1, *8MPL125J20A1

Replacement part supplied will be current active part. For parts not listed, consult place of purchase.

ey

No.

1 Heat Exchanger 1014316

2 Switch, Pressure 1013529 1 1 1 1 1 1 3 Wheel, Blower 1013011

4

Mount, Motor kit*

5 Motor, Blower 1/1151/2CCW

6 Capacitor 1014397

7 Transformer 1012722 1 1 1 1 1 1 8 Control, Fan Timer 1014460 1 1 1 1 1 1 9 Switch, Interlock 1012351 1 1 1 1 1 1

10 Burner Assembly 1008723

11 Pilot/Igniter 1008731 1 1 1 1 1 1 12 Ignitor/Sensor with Clip 1009524 1 1 1 1 1 1 13 Orifice, Pilot .018 503211 1 1 1 1 1 1 14 Orifice, Burner # 42 1011351 2 3 3 4 4 5 15 Valve, Gas 1013350 1 1 1 1 1 1 16 Switch, Limit (Rollout) 1013102 2 2 2 2 2 2 17 Switch, Limit (Main) 1008417

18 Blower, Combustion 1014433

escription

Functional

1

1/115

1

1/115

/2CCW /2CCW

art

Number

1014317 1014318 1014319 1014320 1014321

1011420

1014824 1014823 1014822

1172490 1172487 1172488

1014395

1008724 1008725 1008726

1320362 1065294

1013517

050B 12A1

1

--

1

-1

--

-1

--

-1

--

1

--

1

--

-1

--

075B 12A1

-1

--

1

-1

--

-1

--

-1

--

-1

--

075F 16A1

--

1

--

1

--

1 1

--

1

--

1

--

1

--

1

--

*8MPL

100F

20A1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

100J

20A1

--

-1

--

-1

--

-1

--

-1

--

-1

--

20A1

125J

--

-1

--

-1

--

-1

--

-1

*See Table below for bellyband location on motor

Bellyband Location

on Motor Model *8MPL “A(in.)” 050B12A1 1.38² 075B12A1 1.38² 075F16A1 1.38² 100F20A1 1.81² 100J20A1 1.81² 125J20A1 1.81²

441 01 2611 06

A

55

Replacement Parts - *8MPL (Natural Gas)

K

D

P

Models -- *8MPL050B12A1, *8MPL075B12A1, *8MPL075F16A1, *8MPL100F20A1, *8MPL100J20A1, *8MPL125J20A1

Replacement part supplied will be current active part. For parts not listed, consult place of purchase.

ey

No.

A Panel, Top 1013982

B Box, Junction 1012349 1 1 1 1 1 1 C Cover, Junction box 1012350 1 1 1 1 1 1 D Partition, Blower 1014009

E Housing, Blower 1012972

F Hanger, Blower 1012328 2 2 2 2 2 2

G Panel, Blower Cutoff 721020013

H Clamp, Capacitor 1170643

J Bracket, Control Mounting 1013677 1 1 1 1 1 1

K Tube, Pilot 1013596

L Door, Blower (Heil/Arco)

M Bracket, Door 1014271

N Door, Louver (Heil/Arco)

P Manifold, Gas 1013478

R Bracket, Pilot 1010901 1 1 1 1 1 1 S Bracket, Manifold Support 1012377 2 2 2 2 2 2

T Top, Burner Box 1013705

U Bracket, Burner Box Sides 1012532 2 2 2 2 2 2 V Baffle, Burner Box 1012338

W Bottom, Burner Box 1012334

escription

Functional

(Heil/Arco) (Heil/Arco) (Comfortmaker Only) (Comfortmaker Only) (Comfortmaker Only) (Tempstar Only) (Tempstar Only) (Tempstar Only)

art

Number

1013983 1013984

1014010

1014011

1012888

721020008

1014315

1013597 1013598

1014001 1014375 1014376 1014079 1014349 1014352 1014058 1014068 1014073

1014272 1014273

1014088 1014091 1014094 1014078 1014081 1014085 1014057 1014067 1014072

1013479 1013480 1013481

1013015 1013016

1012339 1012340

1012335 1012336

050B 12A1

1

--

1

--

-1

--

1

-1

--

1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

1

--

1

--

-1

--

*075B

12A1

1

--

1

--

-1

--

1

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

1

--

1

--

-1

--

075F 16A1

--

1

--

1

--

1

--

1 1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

*8MPL

100F

20A1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

100J

20A1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

1

--

125J

20A1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

--

-1

56

441 01 2611 06

Replacement Parts - *8MPL (Natural Gas)

K

D

P

Models -- *8MPL050B12A1, *8MPL075B12A1, *8MPL075F16A1, *8MPL100F20A1, *8MPL100J20A1, *8MPL125J20A1

Replacement part supplied will be current active part. For parts not listed, consult place of purchase.

ey

No.

X Collector Box 1014510

Z Gasket, Combustion Blower 1013540 1 1 1 1 1 1

AA Partition, Front Ht Exchanger 1013543

BB Gaskets, Heat Exchanger 1013991

CC Tubing, Silicone 1014519 1 1 1 1 1 1 DD Baffle, Nox 1014019 2 3 3 4 4 5

)( PARTNOT ILLUSTRATED

)( Fuse, 5 Amp 1083348 1 1 1 1 1 1 )( Harness,Wire 1013693 1 1 1 1 1 1 )( Door Screw 1014488 4 4 4 4 4 4 )( Door Screw Grommet 1171990 4 4 4 4 4 4 )( Manual, Installation & Tech 44101261105 1 1 1 1 1 1 )( Manual, Users 44102201004 1 1 1 1 1 1

escription

Functional

art

Number

1014511 1014509 1014512

1013521 1013545 1013546 1013547 1013548

1013992 1013993 1013994

050B 12A1

1

--

1

--

-2

--

*075B

12A1

-1

--

-1

--

-2

--

075F 16A1

--

1

--

1

--

2

--

*8MPL

100F

20A1

--

1

--

1

--

2

--

100J

20A1

--

1

--

1

--

2

--

125J

20A1

--

-1

--

-1

--

-2

441 01 2611 06

57

ICP N8MPN, N8MPL, H8MPN, T8MPN, C8MPL Installation Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual