Sears 9MPD, N9MP2, N9MP1 User Manual

904 N9MP1 & N9MP2

SingleStage *9MPD

SAFETY REQUIREMENTS

Recognize safety information. This is the safety-alert symbol/ ._\. When you see this symbol on the furnace and in instructions or manuals be alert

to the potential for personal injury.

Understand the signal words DANGER, WARNING, or CAUTION. These words are used with the safety-alert symbol. DANGER identifies the most serious hazards, those that will result in severe personal injury or death. WARNING signifies a hazard that could result in personal injury or

death. CAuT__N is used t_ identify unsafe _ractices that c_u_d resu_t in min_r _ers_na_ injury _r _r_duct and _r__erty damage.

Installing and servicing heating equipment can be hazardous due to gas and electrical components. Only trained and qualified personnel should install, repair, or service heating equipment.

Untrained 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 unit and other safety precautions that may apply.

Follow all safety codes. In the United States, follow all safety codes including the current edition National Fuel Gas Code (NFGC) NFPA No. 54/ANSIZ223.1. InCanada, refer tothecurrent editionofthe NationalStandard Canada CAN/CGA-B149.1- and.2-M91 NaturalGasand Propane

InstallationCodes (NSCNGPIC). Wearsafetyglassesandworkgloves. Havefireextinguisher availableduringstart-upandadjustment procedures and service calls.

These instructions cover minimum requirements and conform to existing national sta nda rds and safety codes. In some insta rices, these instructions exceed certain local codes and ordinances, especially those that may not have kept up with changing residential construction practices. We requre

these instructions as a minimum for a safe installation.

FAN ASSISTED, DIRECT VENT GAS FURNACE

International Comfort Products Corporation (USA) Lewisburg, TN 37097

Manufactured by:

Table of Contents

1.SafeInstallationRequirements................. 4

2.Installation................................ 5

3.Combustion&VentilationAir .................. 8

4.Vent&CombustionAirPiping ................ 11

5.GasSupply andPiping...................... 30

6.ElectricalWiring ........................... 33

PrintedinU.S.A. LPI 12/03/2002 440 01 1114 (00)

7.DuctworkandFilter ........................ 34

8. ChecksandAdjustments.................... 38

9.FurnaceMaintenance ....................... 39

10.SequenceofOperation&Diagnostics.......... 40

11.ConcentricVentTermination................. 44

12.TechSupport andParts ..................... 49

FIRE OR EXPLOSION HAZARD This furnace is not designed for use in mobile

homes, trailers or recreational vehicles. Such use could result in death, bodily injury

and/or property damage.

N9MP1 - Indoor combustion air (1 pipe only)

N9MP2 - Direct Vent ONLY (2 pipe only)

*9MPD - Dual Certified Venting (1 or 2 pipes)

*Denotes Brand

JellJill _1

* 9

Brand Brand Identifier

8 = Non-Condensing, 80+% Gas Furnace 9 = Condensing, 90+% Gas Furnace

Installation Configuration UP = Upflow

DN = Downflow UH = Upflow/Horizontal

HZ = Horizontal DH = Downflow/Horizontal

MP = Multiposition, Upflow/Downflow/Horizontal

Major Design Feature 1 = One (Single) Pipe

2 = Two Pipe D = 1 or 2 Pipe

L = Low NOx

* Denotes Brand

N = Single Stage P = PVC Vent

T = Two Stage

V = Variable Speed

MP D 0 75 F 12 A #

Engineering Rev.

Denotes minor changes

MarketingDigit

Denotes minor change

Cooling Airflow

08 = 800 CFM

12 = 1200 CFM 14 = 1400 CFM

16 = 1600 CFM 20 = 2000 CFM

Cabinet Width

B = 15.5" Wide

F = 19.1" Wide J = 22.8" Wide

L = 24.5" Wide

Input (NominalMBTUH)

440 01 1114 00 Printed in U.S.A.

Dealer Name:

START-UP CHECK SHEET

For 90+ Furnace

(Keep this page for future reference)

Address:

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:

Which blower speed tap is used? (Heating) (Cooling).

LP:

Business Card Here

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

Condensate Drain Connected?

Condensate Drain Trapped? YES [_ Transition Pressure switch hose relocated for U/D/H Application? YES [_ NO [_

Blower Speed Checked? YES [_ NO [_

All Electrical Connections Tight? YES [_ NO [_

Gas Valve OK? YES [_ NO [_

Measured Line Pressure When Firing Unit:

YES [_

NOE_

Temperature of Supply Air:

Temperature of Return Air:

Rise (Supply Temp.-Return Temp.): (°F) or(°C)__

Filter Type and Size:

Fan "Time ON" Setting:

Fan "Time OFF" Setting:

Dealer Comments:

44001111400

(°F). or(°C)

(°F) or(°C)

Calculated Firing Rate:(See Checks andAdjustments Sec- tion).

Temperature Rise (supply-return temperature):(°F)__

Measured Manifold Gas Pressure:

Static Pressure (Ducts): Supply Air Return

Date of Start-Up: CO?

CO2 ?

1. Safe Installation Requirements

Installation or repairs made by unqualified persons can 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 havingjurisdiction.

The information contained in this manual is intended for use by a qualified service technician who is

experienced in such work, who is familiar with all precautions and safety procedures required in such work and is equipped with the proper tools and test

instruments.

Failure to carefully read and follow all instructions in this manual can result in furnace malfunction, death, personal injury and/or property damage.

NOTE: This furnace is design certified by the Canadian Stan- dards Association (CSA) for installation in the United States and

Canada. Refer to the appropriate codes, along with Figure 1 or Figure 2 and this manual, for proper installation.

• Use only the Type of gas approved for this furnace (see Rating Plate on unit). Overfiring will result in failure of heat exchanger and cause dangerous operation. (Fur- naces can be converted to L.E gas with approved kit.)

• Install this furnace only in a location and position as speci-

fied in "lnstallation"pg 5 of these instructions.

• Provide adequate combustion and ventilation air to the

furnace as specified in "Combustion and Ventilation Air" on pg 8 of these instructions.

• Combustion products must be discharged outdoors. Con- nect this furnace to an approved vent system only, as spe-

cified in "Combustion and Ventilation Air"on pg 8 of these

instructions.

• Never test for gas leaks with an open flame. Use a com- mercially available soap solution made specifically for the

detection of leaks to check all connections, as specified in "Gas Supply and Piping"on pg 32 of these instructions.

• Always install furnace to operate within the furnace's in-

tended temperature-rise range with a duct system which

has an external static pressure within the allowable rat- ings, as specified in "Technical Support Specifications" pgs 49 - 51 of these instructions.

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

circulated by the furnace to areas outside the space con- taining the furnace, the return air shall also be handled by

duct(s) sealed to the furnace casing and terminating out- side the space containing the furnace.

• A gas-fired furnace for installation in a residential garage must be installed as specified in "Installation Require- ments"pg 7 of these instructions.

• This furnace is not to be used for temporary heating of buildings or structures under construction.

• 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.

NOTE: It is the personal responsibility and obligation of the end user to contact a qualifted installer to ensure that the installation is adequate and conforms to governing codes and ordinances.

Safety Rules

Your unit is built to provide many years of safe and dependable service provided it is properly installed and maintained. However, abuse and/or improper use can shorten the life of the unit and create hazards for you, the owner.

A. The U.S. Consumer Product Safety Commission recom-

mends that users of gas-burning appliances install carbon monoxide detectors. There can be various sources of car-

bon monoxide in a building or dwelling. The sources could be gas-fired clothes dryers, gas cooking stoves, water heaters, furnaces, gas-fired fireplaces, wood fireplaces,

and several other items. Carbon monoxide can cause seri- ous bodily injury and/or death. Therefore, to help alert

people of potentially dangerous carbon monoxide levels, you should have carbon monoxide detectors listed by a na- tionally recognized agency (e.g. Underwriters Laborato- ries or CSA International) installed and maintained in the building or dwelling (see Note below).

Carbon monoxide or "CO" is a colorless and odorless gas produced when fuel is not burned completely or when the

flame does not receive sufficient oxygen.

B. There can be numerous sources of fire or smoke in a build-

ing or dwelling. Fire or smoke can cause serious bodily inju- ry, death, and/or property damage. Therefore, in order to alert people of potentially dangerous fire or smoke, you should have fire and smoke detectors listed by Underwrit- ers Laboratories installed and maintained in the building or dwelling (see Note below).

Note: The manufacturer of your furnace does not test any de-

tectors and makes no representations regarding any brand or type of detector.

C. To ensure safe and efficient operation of your unit, you

should do the 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. Immediately call a qualified service technician to inspect

the unit and 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 pro- vide air to the unit. Air must be provided for proper com- bustion and ventilation of flue gases.

Frozen Water Pipe Hazard

FROZEN AND BURST WATER PIPE HAZARD

Furnace may shut down. Do not leave your home unattended for long periods during freezing weather

without turning off water supply and draining water

pipes or otherwise protecting against the risk of frozen pipes.

Failure to do so may result in burst water pipes, serious property damage and/or personal injury.

Your furnace is designed solely to provide a safe and comfortable living environment. The furnace is NOT designed to ensure that water pipes will not freeze. It is equipped with several safety de-

vices that are designed to turn the furnace off and prevent it from restarting in the event of various potentially unsafe conditions.

E_ 44001 111400

Ifyourfurnaceremainsoffforanextendedtime,thepipesinyour homecouldfreezeandburst,resultinginseriouswaterdamage. Watermaycreateaconditioninwhichmoldcangrowinyour home.Certaintypesofmoldhavebeenreportedtocauserespi- ratoryproblemsorotherserioushealthrisks.Remedialactions, includingimmediatelydryingallwetitems,shouldbetakenquick- lytohelppreventthedevelopmentofmoldinyourhome.

Ifthe structure will be unattended during cold weather you should

take these precautions.

Turn off the water supply to the structure and drain the wa- ter lines if possible and add an antifreeze for potable water

to drain traps and toilet tanks. Open faucets in appropriate areas.

-or-

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.

-or-

2. Installation

CARBON MONOXIDE POISONING HAZARD

Failure to properly vent this furnace or other appliances can result in death, personal injury and/or property

damage. This furnace can NOT be common vented or connected to

any type B, BW or L vent or vent connector, nor to any portion of a factory-built or masonry chimney. If this

furnace is replacing a previously common-vented furnace, it may be necessary to resize the existing vent and chimneyto prevent oversizing problems for the other remaining appliance(s). See Venting and Combustion Air

Check in Gas Vent Installation section. This furnace MUST be vented to the outside.

3. Install a reliable remote sensing device that will notify somebody of freezing conditions within the home.

Winter Shutdown

If you go away during the winter months and do not leave the heat on in your home, the plastic transition box and the condensate trap on the furnace must be protected from freeze damage.(See Figure 8 trough Figure 17)

1. Disconnect the 5/8" OD rubber hose from the vent drain fit- ting that is located downstream of the combustion blower.

Insert a funnel into the hose and pour four(4) ounces of sanitary type (RV) antifreeze into the condensate trap. Re- connect the 5/8" OD rubber hose to the stub on the vent drain fitting. Secure with the hose clamp.

2. Disconnect the 3/4" OD rubber hose from the condensate trap. Insert a funnel into the hose and and pour four(4)

ounces of sanitary type (RV) antifreeze into the plastic Transition box. Squeeze the hose together near the end and quickly reconnect the 3/4" OD rubber hose to the stub on the condensate trap. Secure with the hose clamp.

When you return home, your furnace will be ready to start, as it is not necessary to drain the antifreeze from the furnace.

Do NOT operate furnace in a corrosive atmosphere containing chlorine, fluorine or any other damaging chemicals. Refer to Combustion & Ventilation Air section,

Contaminated Combustion Air.

Typical Upflow Installation

Aluminum or non-rusting shield recommended. (See Vent Termination Shielding for dimensions).

8" Min. _ _lnletPipe

- _ _ (not used on

Insame _ Single Pipe

20' Max. atmospheric <_> model)

zone

Couplingon endsol

exhaust pipe.Total

pipe&couplingout-

Location and Clearances

4. RefertoFigure lorFigure 2fortypicalinstallationandba- sic connecting parts required. Refer to Figure 4 for typical horizontal direct vent installation and basic connecting parts required. Supply and return air plenums and duct are also required.

5. If furnace is a replacement, it is usually best to install the furnace where the old one was. Choose the location or

evaluate the existing location based upon the minimum clearance and furnace dimensions (Figure 3).

CAUTION

Special precautions MUST be made if installing furnace in an area which may drop below freezing. This can cause

improper operation or damage to equipment. If furnace environment has the potential of freezing, the drain trap and drainline must be protected. The use of electric heat tape or RV antifreeze is recommended for these installations. (See

"Condensate Trap Freeze Protection Section ")

44001 111400 [_

Increase minimum from 8" to 18" for cold climates (sustained temperatures

below 0 o F). 25-23-33

Min.

Max.

ameatmospheric

zone

Typical Downflow Installation

See VentTermination Shieldingin VentSection.

I_ "8" Min.

InletPipe _ [_ 20' Max. (not usedon _ in same

Single Pipe-------_ k,_k atmospheric zone

model) _

VentPi_c ; MUSTbe supl Horizonta andVertically

* Increase minimum from 8" to 18" for cold climates (sustained temperatures below O°F), 25-23-33a

Coupling on inside and outside of wall

to restrain vent pipe

8" Min.

Min.

Max.

same

zone

Installation Requirements

1. Install furnace level.

This furnace is NOT to be used for temporary heat of build- ings or structures under construction.

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

Install the vent pipes as short as practical. (See Ventand Combustion Air Piping section).

Maintain clearance for fire safety and servicing. A front clearance of 30" is required for access to the burner, con-

trols and filter.

6. Use a raised base for upflow furnace if the floor is damp or

wet at times.

For downflow installations, non combustible subbase must be used under the furnace unless installation is on a non

combustible floor surface. This requirement applies even

when a coil box or cabinet is used.

FIRE HAZARD

Failure to install unit on noncombustible subbase can result in death, personal injury and/or property damage.

Place furnace on noncombustible subbase on down- flow applications, unless installing on non-combus-

tible flooring.

8. For horizontal installations, line contact is permissible only

between lines formed by intersection of back and two sides of furnace jacket, and building joists, studs or framing.

Residential garage installations require:

Burners and ignition sources installed at least 18" above the floor.

Located or physically protected from possible damage by a vehicle.

10. Local codes may require a drain pan under the entire fur- nace and condensate trap when the furnace is installed in

attic application.

Installation Positions

This furnace can be installed in an upflow, horizontal (either left or right) or downflow airflow position. DO NOT install this furnace on

its back. For the upflow position, the return air ductwork can be attached to either the left or right side panel and/or the bottom. For horizontal and downflow positions, the return air ductwork must

be attached to the bottom. The return air ductwork must never be attached to the back of the furnace.

Furnace Installation Considerations

The installation of the furnace for a given application will dictate the position of the furnace, the airflow, ductwork connections,

vent and combustion air piping. Consideration must be given to the following:

Condensate Trap and Drain Lines

The supplied condensate trap must be attached to the furnace side panel on either the left or right side. For horizontal installa- tions, the drain trap is vertically attached to the side panel below

the furnace. A minimum clearance of 6" below the furnace is re- quired for the condensate trap. Downward slope of the conden-

sate drain line from the condensate trap to the drain location must be provided. Adequate freeze protection of the drain trap and the

drain line must be provided. See "Condensate Drain Trap"section for further details.

Leveling

Proper leveling of the furnace must be provided to insure proper drainage of the condensate from the furnace. The furnace must be level to within 1/4" from front to back and from side to side for upflow and downflow installations or top to bottom for horizontal

installations.

Vent and Combustion Air Connections

On the Dual Certified furnace, the vent and combustion air pipes attach to the furnace through the top panel for the upflow and hori-

zontal installations. For the downflow installation, the vent and combustion air pipes attach to the furnace through the alternate

locations on the furnace side panels. Note: On the Direct Vent furnace, the vent pipe attaches to the fur-

nace through the side panels. The combustion air pipe attaches to the top panel or to the alternate location on the side panel.

On the Single Pipe furnace, the vent pipe attaches to the furnace through the furnace side panels.

Note: Repositioning of the combustion blower is required for the vent pipe connection to the furnace through the "right side" panel. See "Vent and Combustion Air Piping"section for further details.

44001 111400

Dimensions & Clearances

t3!4

| ]jAI. I.TAKE

_ /VENTrgMPD)

TOP

LEFT SIDE I_ _

TRAP (COUNTERFLOW) _ _

AiRI.TAKE ¢"

(ALTERNATE)_ J

TRAP 4131164 C

UPFLOWIHORIZONTAL

• THERMOSTAT/J_T-_ 7_

/ELECTRICAL

-- 11/16

13/8 2! /8

213/4

624

Cabinet to Combustible Clearances

TOP BOT. RH LH BACK FRONT FLUE

1' O' O' O' O' 3' O'

Horizontalposition:Linecontactispermissibleonlybetween lines

formedby intersectionsoftop andtwo sidesof furnacejacket, and

buildingjoists,studsor framing,

--A--

-- B--

FRONT

1311/16

1/16

1913116

17/8

Unit

Capacity N9MP1050B12A N9MP1075B12A

N9MP1080F16A NgMP1100F14A

N9MP1100J20A N9MP1125J20A

N9MP2050B12A N9MP2075B12A N9MP2080F16A

N9MP2100F14A N9MP2100J20A

N9MP2125J20A *9MPD050F12A

*9MPD075F12A

*9MPD080J16A *9MPD100J14A

*9MPD100J20A

*9MPD125L20A

21518 47/8

BOTTOM

23118

Cabinet Bottom

GAS

21/4

191/4

17/8

25=23-36b

44001 111400

Horizontal Furnace Installation

This furnace can be installed horizontally in an attic, basement,

crawl space, alcove, or suspended from a ceiling in a basement or utility room. See Figure 4. Do not install furnace on its back or in

the reverse airflow positions as safety control operation will be ad- versely affected.

_ _!'i [ Typical Horizontal Installation

Inlet Pipe (not used on Single Pipe model)

Vent

Condensate

Trap

25-23-34

NOTE: 6"bottomclearancerequiredfor condensatetrap.

If the furnace is to be suspended from the floor joists in a crawl space or the rafters in an attic, it is necessary to use steel pipe straps or an angle iron frame to rigidly attach the furnace to pre- vent movement. These straps should be attached to the furnace 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. (Take caution to allow door panels to be removed for maintenance)

If the furnace is to be installed in a crawl space, consult local codes. A suitable concrete pad or blocks are recommended for crawl space installation on the ground.

NOTE: 6" bottom clearance required for condensate trap. Thirty (30) inches between the front of the furnace and adjacent

construction or other appliances MUST be maintained for service clearance.

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

The horizontal furnaces may be installed directly on combustible wood flooring or supports as long as all required furnace clear- ances are met. See Figure 4.

This furnace MUST NOT be installed directly on carpeting or tile or other combustible material other than wood flooring or sup-

ports. For horizontal installation over a finished living space. A field fab-

ricated auxiliary drain pan with drain pipe is required to prevent damage by overflow due to blocked condensate drain.

3. Combustion & Ventilation Air For Single Pipe Installation

CARBON MONOXIDE POISONING HAZARD

Failure to provide adequate combustion and ventilation air can result in death and/or personal injury.

Use methods described here to provide combustion and

ventilation air.

Furnaces require ventilation openings to provide sufficient air for proper combustion and ventilation of flue gases. All duct or open- ings for supplying combustion and ventilation air must comply

with National Fuel Gas Code, NFPA54/ANSI Z223.1, 2001 (or

current edition) and applicable provisions of local building codes. This furnace can NOT be common vented or connected to any

type B, BW or L vent or vent connector, nor to any portion of a fac- tory-built or masonry chimney. If this furnace is replacing a pre- viously common-vented furnace, it may be necessary to resize the existing vent and chimney to prevent oversizing problems for the other remaining appliance(s). See "Venting and Combustion

Air Check"in this section, This furnace MUST be vented to the outside.

Air OpeningsandConnectingDucts

1. Total input rating for all non direct vent gas appliances MUST be considered when determining free area of open- ings.

2. Connect ducts or openings directly to outside.

3. When screens are used to cover openings, they MUST be no less than 1/4" mesh.

4. The minimum dimension of rectangular air ducts MUST NOT be less than 3".

5. When sizing grille or louver, use the free area of opening. If free area is NOT stamped or marked on grill or louver, as-

sume a 20% free area for wood and 60% for metal.

Confined Space Installation

NOTE: A confined space is defined as an area with less than 50 cubic feet per 1,000 BTUH input rating for all gas appliances

installed in the area.

Requirements

Provide confined space with sufficient air for proper com- bustion and ventilation of flue gases using horizontal or ver- tical ducts or openings.

Figure 5 illustrate how to provide combustion and ventila- tion air. A minimum of two permanent openings, one inlet

and one outlet, are required.

One opening MUST be within 12" of the floor and the se- cond opening within 12" of the ceiling.

E_ 44001 111400

Outside Air (This is ONLY a guide. SubJect to codes of country havingjurisdiction.)

ThisinstallationNOTapprovedin Canada GasVen_,

Gas Vent

_, let Air (1) ._1 Gable Vent ,_

G, re. _ I_ .i II II II II Outlet

Outlet Air (1) Soffit Vent f / "_- .. • I I I I I I I I I

_ "_Ventilated Attic_ Outlet I II Air(2)

-- /TopAbovelnsulation "_ ,_lrtl) I _ .LL II II

................................II I= II II

1- I'Outle;Air '1' I1 I Soffit Vent In.let _ ........ I _: - _ Inlet

F°I A ; / -- ] r_ II I Minimum Onelnlet and One Outlet Air Supply is Required

Ventilated Crawl S . _ I I_'%] _ .

alternateInlet Air (1)

:_ Inlet ' d ,m_,, I I _* I I I I Inlet Air Opening Must be Within12" of floor

4. Size openings and ducts per Table 1.

Horizontal duct openings require I square inch of free area per 2,000 BTUH of combined input for all gas appliances in

area (see Table 1).

Vertical duct openings or openings directly to outside re- quire 1 square inch of free area per 4,000 BTUH for com-

bined input of all gas appliances in area (see Table 1).

ii_i!iiii_i_i_!i_i_i_!i_i_i_!i_i_i_!i_i_i_!i_i_i_!i_i_i_!i_i_i_!i_i_i_!i_i_i_!i_i_i_!i_i_i_!i_i_i_!i_i_i_!i_i_i_!

BTUH

Input Horizontal Duct

Rating (2,000 BTUH)

50,000 25 sq. in. 75,000 37.5sq. in.

1OO,OOO 50sq. in. 125,000 62.5sq. in.

150,000 75 sq. in.

MinimumFreeArea Required for Each Opening

Free Area

VerticalDuctoropenings

to outside(4,000BTUH)

12.5sq. in.

18.75 sq. in. 25sq. in.

31.25 sq. in.

37.5sq. in.

EXAMPLE: Determining Free Area

Appliance 1 Appliance 2 Total Input

100,000 + 30,000 = (130,000 + 4,000) = 32.5 Sq. In. Vertical

Appliance 1 Appliance 2 Total Input

100,000 + 30,000 = (130,000 + 2,000) = 65 Sq. In. Horizontal

One permanent opening, commencing within 12" of the top of the enclosure, shall be permitted where the equipment has clear-

ances of at least 1" from the sides and back and 6" from the front of the appliance. The opening shall directly communicate with the

outdoors or shall communicate through a vertical or horizontal duct to the outdoors or spaces (crawl or attic) that freely communi-

cate with the outdoors, and shall have a minimum free area of:

1 sq. in per 3000 Btu per hr. of the total input rating of all

equipment located in the enclosure, and

Not less than the sum of the areas of all vent connectors in

the confined space.

/ I I I H I MaybeinanyCombinationShown

Air(l) I_ I I"°'1 E:_h_r _ilei2 ) Outlet Air Opening Must be Withinl2" of ceiling

Unconfined Space Installation

Round Duct

(4,000BTUH)

5" 6"

An unconfined space is defined as an area having a minimum vol- ume of 50 cubic feet per 1,000 Btuh total input rating for all gas appliances in area. Refer to Table 2 for minimum area required.

................................................................................................................I Minimum Area in Square Feet

EXAMPLE: NOTE: Square feet is based on 8 foot ceilings.

28,000BTUH X 50CubicFt, = 1,400 = 175Sq, Ft.

NOTE: Refer to definitions in section titled Unusually Tight Construction. If any oneofthe conditions apply, the space MUST

be considered confined space regardless of size.

1. Adjoining rooms can be considered part of an unconfined

2. An attic or crawl space may be considered an unconfined

(1)1SquareInchper4000BTUH (2)1SquareInchper2000BTUH

CARBON MONOXIDE POISONING HAZARD

Failure to supply additional air by means of ventilation

grilles or ducts could result in death and/or personal injury.

An unconfined space or homes with tight construction may not have adequate air infiltration for proper combustion and ventilation of flue gases.

Most homes will require additional air.

I Unconfined Space

BTUH Input Minimum Area in Square Feet

Rating

50,000 312 78,000 490

114,000 712 155,000 968

1,000 8' Ceiling Height

area if there are openings without doors between rooms.

space provided there a re adequate ventilation openings di- rectly to outdoors. Openings MUST remain open and NOT have any means of being closed off. Ventilation openings to outdoors MUST be at least 1" square of free area per 4,000 BTUH of total input rating for all gas appliances in area.

44001 111400 [_

3. Installairintakeaminimumof12"abovemaximumsnow levelandclearofanyobstruction.Ductorventilationopen-

ingrequiresonesquareinchoffreeareaper4,000BTUH oftotal input rating for all gas appliances in area.

4. Air inlet MUST be screened with not less than 1/4" mesh screen.

Unusually Tight Construction

In unconfined spaces, infiltration may be adequate to provide air for combustion, ventilation and dilution of flue gases. However, in buildings with unusually tight construction, additional air MUST be provided using the methods described in section titled Con- fined Space Installation:

Unusually tight construction is defined as: Construction with

1. Walls and ceilings exposed to the outside have a continu- ous, sealed vapor barrier. Openings are gasketed or

sealed and

Doors and openable windows are weather stripped and

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

Some provincial codes and local municipalities require ventilation or make-up air be brought into the conditioned space as replace- ment air. Whichever method is used, the mixed return air temper- ature across the heat exchanger MUST not fall below 60 °F or flue gases will condense in the heat exchanger. This will shorten the life of the heat exchanger and possibly void your warranty.

Venting and Combustion Air Check

The following information is supplied to allow the installer to make adjustments to the setup of existing appliances, IF REQUIRED, based on good trade practices, local codes, and good judgement of the installer. Manufacturer does NOT take responsibility for

modifications made to existing equipment. NOTE: If this installation replaces an existing furnace from a

commonly vented system, the original venting system may no longer be sized to properly vent the attached appliances. An im- properly sized venting system may cause the formation of con- densate in the vent and the leakage or spillage of vent gases. To make sure there is adequate combustion air for all appliances,

MAKE THE FOLLOWING CHECK.

CARBON MONOXIDE POISONING HAZARD

Failure to follow the steps outlined below 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 Pro-

pane Installation Codes and these instructions. Deter-

mine that there is no blockage or restriction, leakage, cor- rosion and other de to ensure there is no blockage or re- striction, leakage, corrosion and other deficiencies which

could cause an unsafe condition.

3. As far as practical, close all building doors and windows and all doors between the space in which the appliance(s) connected to the venting system are located and other spaces of the building.

4. Close fireplace dampers.

5. Turn on clothes dryers and any appliance not connected to the venting system. Turn on any exhaust fans, such as range hoods and bathroom exhausts, so they will operate at maximum speed. Do not operate a summer exhaust

fan.

6. Followthe lighting instructions. Place the appliance being inspected into operation. Adjust thermostat so appliance is operate continuously.

7. Test for spillage from draft hood equipped appliances at the draft hood relief opening after 5 minutes of main burner operation. Use the flame of a match or candle. (Figure 6)

8. If improper venting is observed, during any of the above tests, the venting system must be corrected in accor-

dance with the National Fuel Gas Code, ANSI

Z223,1/NFPA 54 or CSA B149. 1, Natural Gas and Pro-

pane Installation Codes.

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 ap- pliance to their previous conditions of use.

Vent Check

For Two Pipe Installation

VentPipe --_1 [ A/ Draft Hood

Typical Gas

Water Heater,_ f [ [ _ _,_._. Match

If flame pulls towards draft hood, this indicates suffi-

cient venting.

E_ 44001 111400

This furnace can NOT be common vented or connected to any type B, BW or L vent or vent connector, nor to any portion of a fac- tory-built or masonry chimney. If this furnace is replacing a pre- viously common-vented furnace, it may be necessary to resize the existing vent and chimney to prevent oversizing problems for the other remaining appliance(s). See "Venting and Combustion

Air Check"in this section. This furnace MUST be vented to the outside.

4. Vent and Combustion Air Piping

CARBON MONOXIDE POISONING, FIRE AND EXPLO- SION HAZARD

Failure to properly vent this furnace can result in death,

personal injury and/or property damage.

Read and follow all instructions in this section.

• Printing inks, paint removers, varnishes, etc.

• Hydrochloric acid.

• Sulfuric Acid.

• Solvent cements and glues.

• Antistatic fabric softeners for clothes dryers.

• Masonry acid washing materials.

Single Pipe (N9MP1Models)

This furnace is certified as a category IV appliance. This furnace requires ventilation openings to provide air for proper combustion and ventilation of flue gases. All duct or openings for supplying combustion and ventilation air must comply with the gas codes or in absence of local codes, the applicable national codes.

When the installation is complete, see the "Venting and Com- bustion Air Checl4' in this manual.

Direct Vent (N9MP2 Models)

This furnace is certified as a category ]V appliance. This furnace uses outside air for combustion ONLY, it MUST be taken from the

same atmospheric pressure zone as the vent pipe. See Con-

fined Space Installation in the Combustion and Ventilation Air in this manual.

Dual Certified ('gMPD Models)

This furnace is certified as a category ]V appliance. This furnace can be installed as a direct vent furnace using outside air for com-

bustion or the furnace can use air from inside the structure for combustion. The INLET air pipe is optional. If combustion air

comes from inside the structure, adequate make up air MUST be provided to compensate for oxygen burned. See Confined Space Installation in the Combustion and Ventilation Air chapter. If combustion air is drawn from outside the structure, it MUST be taken from the same atmospheric pressure zone as the vent pipe.

Contaminated Combustion Air

Installations in certain areas or types of structures will increase the exposure to chemicals or halogens that may harm the fur-

Race. The following areas or types of structures may contain or have ex-

posure to the substances listed below. The installation must be evaluated carefully as it may be necessary to provide outside air

for combustion.

• 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).

44001 111400

Vent and Combustion Air Piping Guidelines

This furnace is approved for venting with Schedule 40 PVC, CPVC, ABS, Cellular Core pipe fittings and SDR-26 PVC.

NOTE: All PVC, CPVC, ABS, and Cellular Core pipe fittings, sol- vent cement, primers and procedures MUST conform to Ameri- can National Standard Institute and American Society for Testing and Materials (ANSI/ASTM) standards.

• Pipe and Fittings - ASTM D1785, D2241, D2466, D2661, D2665, F-891, F-628

• PVC Primer and Solvent Cement- ASTM D2564

• Procedure for Cementing Joints - Ref ASTM D2855

NOTE: All vent piping MUST be installed in compliance with local codes or ordinances, these instructions, good trade practices, and codes of country having jurisdiction.

1. Determine the best routing and termination for the vent pipe and air inlet pipe by referring to all of the instructions

and guidelines in this Section.

2. Determine the size required for the vent pipe and air inlet pipe.

3. Loosely assemble all venting parts without adhesive (pipe

joint cement) for correct fit before final assembly.

4. Use of vertical piping is preferred because there will be some moisture in the flue gases that may condense as it

leaves the vent pipe (See Special Instruction For Horizon-

tal Vents).

5. The vertical vent pipe MUST be supported so that no weight is allowed to rest on the combustion blower.

6. Exhaust vent piping or air inlet piping diameter MUST NOT be reduced.

7. All exhaust vent piping from the furnace to termination MUST slope upwards. A minimum of 1/4" per foot of run is required to properly return condensate to the furnace drain

system.

8. Use DWV type long radius elbows whenever possible, as they provide for the minimum slope on horizontal runs and they provide less resistance in the vent system. If DWV el- bows cannot be used, use two, 45 ° elbows when possible. On horizontal runs the elbows can be slightly misaligned to provide the correct slope.

9. All horizontal pipe runs MUST be supported at least every five feet with galvanized strap or other rust resistant materi- al. NO sags or dips are permitted.

10. All vertical pipe runs MUST be supported every six feet where accessible.

11.

The minimum pipe run length is 2'.

12.

The piping can be run in the same chase or adjacent to sup- ply or vent pipe for water supply or waste plumbing. Itcan

also be run inthe same chase with a vent from another 90+ furnace.

NOTE: In NO case can the piping be run in a chase where temperatures can exceed 140 ° F. or where radiated heat

from adiacent surfaces would exceed 140 ° F.

13.The vent outlet MUST be installed to terminate in the same

atmospheric pressure zone as the combustion air inlet.

14. The vent system can be installed in an existing unused chimney provided that:

• Both the exhaust vent and air intake run the length of the chimney.

• No other gas fired appliance or fireplace (solid fuel) is vented into the chimney.

• The top of the chimney MUST be sealed flush or crowned

up to seal against rain or melting snow so ONLY the piping protrudes.

• The termination clearances shown in Figure 7 are main- tained.

15.

Furnace applications with vertical vents requiring vent di-

ameter increaser fittings must have increaser fittings installed in vertical portion of the vent. Condensate will be trapped in the vent if the vent diameter is increased prior to having an elbow turned upward. This could cause nui- sance tripping of the pressure switch.

PipingInsulation Guidelines

NOTE: Use closed cell, neoprene insulation or equivalent. If Fi- berglass or equivalent insulation is used it must have a vapor bar- rier. Use R values of 7 up to 10', R-11 if exposure exceeds 10'. If Fiberglass insulation is used, exterior to the structure, the pipe MUST be boxed in and sealed against moisture.

When the vent or combustion air pipe height above the roof exceeds 30", or if an exterior vertical riser is used on a hori- zontal vent to get above snow levels, the exterior portion

MUST be insulated.

When combustion air inlet piping is installed above a sus- pended ceiling, the pipe MUST be insulated with moisture

resistant insulation such as Armaflex or other equivalent type of insulation.

Pipe Diameter Table

N9MP1 & *9MPD Models

50,000, 75,000 & 80,000 Btuh Furnaces

40' & (5) 90° elbows with 2" PVC pipe or

70' & (5) 90 ° elbows with 3" PVC pipe

100,000 Btuh Furnace

40' & (5) 90° elbows with 3" PVC pipe or 70' & (5) 90 ° elbows with 3" PVC pipe &

Long Vent Kit (See Tech. Manual)

125,000 Btuh Furnace

40' & (5) 90 ° elbows with 3" PVC pipe

Elbows are DWV Long Radius Type for 2" and 3" vents,

If more than five elbows are required, reduce the length of both the inlet and exhaust pipes 5' for each additional elbow

used. NOTE: It is allowable to use larger diameter pipe and fitting than

shown in the tables but not smaller diameters than shown.

Pipe Diameter Table

N9MP2 Models

50,000 & 80,000 Btuh Furnaces

40' & (5) 90° elbows with 2" PVC pipe or

70' & (5) 90 ° elbows with 3" PVC pipe

75,000 Btuh Furnaces

25' & (3) 90° elbows with 2" PVC pipe or

40' & (5) 90° elbows with 2" PVC pipe &

Long Vent Kit (See Tech. Manual) or

70' & (5) 90 ° elbows with 3" PVC pipe

100,000 Btuh Furnace

40' & (5) 90° elbows with 3" PVC pipe or

70' & (5) 90° elbows with 3" PVC pipe &

Long Vent Kit (See Tech. Manual)

125,000 Btuh Furnace

40' & (5) 90 ° elbows with 3" PVC pipe

Elbows are DWV Long Radius Type for 2" and 3" vents.

If more than five elbows are required, reduce the length of both the inlet and exhaust pipes 5' for each additional elbow

used. For "Concentric Termination Kit" Venting table, see

"Section 11" in this manual.

Vent Termination Clearances

Insulate combustion air inlet piping when run in warm, hu- mid spaces such as basements.

Sizing Combustion Air and VentPipe

Consult Table 3 or Table 4 to select the proper diameter exhaust and combustion air piping. Exhaust and combustion air piping is sized for each furnace Btuh size based on total lineal vent length (on inlet or outlet side), and number of 90 ° elbows required. Two

45 ° elbows can be substituted for one 90 ° elbow. The elbow or el- bows used for vent termination outside the structure ARE

counted, including elbows needed to bring termination above ex- pected snow levels. The elbow inside the furnace on the *9MPD

IS NOT included in the count.

[_ 44001 111400

CARBON MONOXIDE POISONING, FIRE AND EXPLO- SION HAZARD

Inlet and outlet pipes may NOT be vented directly above

each other.

Failure to properly vent this furnace can result in death,

personal injury and/or property damage.

1. Determine termination locations based on clearances spe- cified in following steps and as shown in Figure 7, Figure 19, through Figure 27.

For "Concentric Termination Kit" clearances, see Figure 45, Figure 46, Figure 47, Figure 48 and Figure 49 in "Section 10"

in this manual.

2. The vent termination must be located at least 12" above ground or normally expected snow accumulation levels.

3. DoNOTterminate over public walkways. Avoid areas

where condensate may cause problems such as above planters, patios, or adjacent to windows where steam may cause fogging.

4. The vent termination shall be located at least 4' horizontally from any electric meter, gas meter, regulator, and any relief equipment. These distances apply ONLY to U.S. installa-

tions. The vent termination is to be located at least 3' above any

forced air inlet located within 10' ; and at least 10' from a combustion air intake of another appliance, except another

direct vent furnace intake. In Canada, the Canadian Fuel Gas Code takes prece-

dence over the preceding termination instructions.

Vent Termination Clearances

(United States Only)

In Canada See Canadian Fuel Gas Code

OtherThan

DirectVent Terminal

plastic cap and clamp. This will prime both the vent and the transi- tion sides of the trap.

The condensate drain trap supplied with the furnace MUST be used. The drain connection on the condensate drain trap is sized for 3/4" PVC or CPVC pipe, however alternate 1/2" CPVC (nomi- nal 5/8" O.D.) or vinyl tubing with a minimum inner diameter (I.D.) of 5/8" may also be used, as allowed by local codes. Alternate drain pipes and hoses may be used as allowed by local codes.

The drain line must maintain a 1/4" per foot downward slope to- ward the drain. 1/4" per foot is recommended. Installation of an

overflow line is recommended when the 1/4" per foot slope to the condensate drain cannot be maintained. See Figure 1 for proper routing and installation of the overflow.

DO NOT trap the drain line in any other location than at the con- densate drain trap supplied with the furnace.

FROZEN AND BURST WATER PIPE HAZARD

If a condensate pump is installed, a plugged condensate drain or a failed pump may cause the furnace to shut

down. Do not leave the home unattended during freezing weather without turning off water supply and draining water pipes or otherwise protecting against the risk of frozen pipes.

Failure to do so may result in burst water pipes, serious

property damage and/or personal injury.

Condensate Drain Trap

This furnace removes both sensible and latent heat from the prod- ucts of combustion. Removal of the latent heat results in con-

densation of the water vapor. The condensate is removed from the furnace through the drains in the plastic transition and the vent

fitting. The drains connect to the externally mounted condensate drain trap on the left or right side of the furnace.

The startup of a new furnace will involve a cycle or two of the fur- nace to properly prime the condensate trap with water. Until the trap is fully primed, some condensate will be pulled into the com- bustion blower. The furnace may cycle on the pressure switch connected to the plastic transition box due to condensate buildup. After the trap is primed, the condensate will start draining from the furnace. The combustion blower will clear out any remaining con- densate in the blower housing through the vent fitting down- stream of the blower. Note that the condensate trap can also be primed by pouring water into the vent drain side of the trap. Re- move the small plastic cap and clamps from the unused drain stu b on the vent drain side of the condensate trap. Connect a section of the 518" OD hose with a funnel to the drain stub and pour eight (8) ounces of water into the trap. Remove the hose and replace the

If possible DO NOT route the drain line where it may freeze. The drain line must terminate at an inside drain to prevent freezing of the condensate and possible property damage.

1. A condensate sump pump MUST be used if required by lo- cal codes, or if no indoor floor drain is available. The con-

densate pump must be approved for use with acidic condensate.

A plugged condensate drain line or a failed condensate pump will allow condensate to spill. If the furnace is installed where a condensate spill could cause damage, it

is recommended that an auxiliary safety switch be installed to prevent operation of the equipment in the event of pump failure or plugged drain line. If used, an auxiliary safety switch should be installed in the R circuit (low voltage)

ONLY.

3. If the auxiliary switch in the condensate pump is used, the furnace may shut down due to a blocked condensate line or failed pump. To prevent frozen water pipes see the "Frozen Water Pipe Hazard" section on Page 4 of this manual.

Condensate Drain Trap Freeze Protection

Special precautions MUST be made if installing furnace in an area which may drop below freezing. This can cause improper op- eration or damage to the equipment. If the the furnace environ- ment has the potential of freezing, the drain trap and drain line must be protected. Use 3 to 6 watt per foot at 115 volt, 40 ° F self- regulating shielded and waterproof heat tape. Wrap the drain trap and drain line with the heat tape and secure with the ties. Follow the heat tape manufacturer's recommendations.

44001 111400 [_

Upflow Installations (Dual Certified *9MPD-A4 Models)

YellowPlasticCap

Vent Pipe

Air Supply _ _

Vent P )eGrommet

Rubber Coupling Gas Pipe

Sls"Hose &

Clamps

PlasticCap

Grommet

NOTE: TRAP MUST BE PRIMED BEFORE OPERATION

Combustion Air

TOP Venting Pipe (optional on

some models)

Coupling

Pressure Switch Hose, Blower

/ Plastic Cap

Rubber Hose

Some Models have one pressure switch

Blower

Pressure Switch Hose, Transition

CondensateTrap & Connectionsonallmodels

Gasket (Leftor Right except125 Side)

_ Component Identification for Illustration for

Figure 8 thru Figure 17 for specifies

NOTE: DO NOT make connections until the hose routing and lengths have been determined. Remove the condensate trap and

drain hoses from the furnace and secure the drain hoses to the drain stubs on the trap with the hose clamps (position the clamps

as shown in Figure 8). Install the condensate trap/hose assem- blyto the furnace casing. Hook one side ofthe"clamp ears" on the

drain stub through the hole in the casing and push the condensate trap into position. Secure with the two screws. Reconnect the

drain hoses to the stubs on the vent fitting and the plastic transi- tion and secure with the clamps.

Mount the condensate drain trap in a vertical position to either the left or right side of the furnace using the two screws and gasket

that are provided. If needed, remove the hole plugs from the fur- nace side panel and relocate to the open set of holes in the oppo-

site side panel.

NOTE: All gaskets and seals must be in place for sealed combus- tion applications.

SinglePressureSwitch

Transition

Box

Switch,

DrainLine

Return Air

Transition

25-24-11

_n "Clamp

ears"

Poin,ed

/ _ (_///Preassemble &

_. /_/ y/ inseri into fur-

Ensure that the vent fitting and the 90 ° elbow are securely at- tached to the combustion blower using the clamps. Note for prop-

er alignment of the vent pipe through the furnace, the 90 ° elbow must be installed with the "UPFLOW" lettering on the 90 ° elbow facing out.

NOTE: The 90 ° elbow is approved for use inside the furnace ONLY.

Plug the upper drain stub on the vent fitting with the yellow plastic cap.

For left side venting, remove 90 ° elbow from the vent fitting by loosening the clamp on the vent fitting. Securely attach vent fitting

to combustion blower. NOTE: For left side venting, the vent fitting MUST be installed

with the airflow marking arrow pointed toward the vent pipe, with the drain stub at a 5° to 10 ° downward slope.

Connect the PVC vent extension pipe to the vent fitting. This pipe has a built-in channel to assist vent condensate disposal. Align the arrow on the PVC pipe with the airflow marking arrow on

the ventfittin . See label on the PVC i efor ro erinstallation.

nace

44001 111400

Thispipemayonlybeshortenedifanelbowisusedtoconnectthe PVCventextensiontubetofield-installedventpipe.Securelyat- tachthePVCventextensionpipetotheventfittingwiththeclarap.

Thisconfigurationallowsleftsideventingfromthefurnace.Ifright sideventingisrequired,thecombustionblowermustberelocated ontheplastictransitionbox.Loosenthefour(4)screwsthatse-

NOTE:Forrightsideventing,theventfittingMUSTbeinstalled

withtheairflowmarkingarrowpointedtowardtheventpipe,with

thedrainstubata5°to10°downwardslope.(SeeFigure9)

Plug the upper drain stub on the vent fitting with the yellow plastic cap.

Connect the PVC vent extension pipe to the vent fitting. This pipe has a built-in channel to assist vent condensate disposal. Align the arrow on the PVC pipe with the airflow marking arrow on the vent fitting. See label on the PVC pipe for proper installation. This pipe may only be shortened if an elbow is used to connect the PVC vent extension tube to field-installed vent pipe. Securely at-

tach the PVC vent extension pipe to the vent fitting with the cla rap.

up.ow,nsta.a.ons(Dua,Cer..ed"gMPD-A4Mode,s)

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

RIGHT Side Venting

NOTE: TRAP MUST BE PRIMED BEFORE OPERATION

cure the blower to the transition approximately 112". Rotate the blower 180 ° and secure with the four(4) screws. Note that some combustion blowers have plastic spacers on the mounting legs of the blower located at the 6 and 12 o'clock positions (blower snout to the left or right) that are required for proper fit up of the blower to the transition. Use caution to not over tighten the screws to pre- vent stripping out of the plastic mounting holes.

For left side mounted condensate trap, connect the 3/4" OU rub- ber hose with the 90 ° bend to the large drain stub on the conden- sate trap and secure with a 3/4" clamp.

Route the hose to the drain stub on the bottom of the plastic transi- tion box. Cut off excess hose and discard. Connect the hose to the

drain stub on the transition and secure with a 3/4" clamp. For right side mounted condensate trap, connect the 3/4" OD rub-

ber hose with the 90 ° bend to the bottom of the plastic transition box and secure with a 3/4" clamp.

Route the hose to the large drain stub on the condensate trap. Cut off excess hose and discard. Connect the hose to the drain stub

on the condensate trap and secure with a 3/4" clamp.

Trap Connection

"Clampears"

ointedOUT •

eassemble dinsert

MountingScrews(4)

forRotatingCombustion_ Blower _

DRAIN SIDE VIEW _

_ Rotate downward

5° to10°

NOTE!"Fuilt-inchannelwillbe

angled 5°to10° also.

Supply Air

onepressureswitch

"_ Optional on

/ somemodels

c .._

) ) / Extension Pipe _ _ c

__ _ PVC Vent

Vent

Drain

25-24-05

2 Pressure Switch Connectionon 125models

For left or right side mounted condensate trap, the pressure tap on the condensate trap MUST be connected to the unused pressure tap located on the upper right hand corner of the plastic transition box. Remove the plastic caps from the pressure taps on the condensate trap and the plastic transition and connect with the 5/16" OD rubber hose. (See Figure 8 and Figure 9)

Connect the 5/8" OD rubber hose with the 90 ° bend to the lower

44001 111400 [_

drain stub on the vent fitting and secure with a 5/8" clamp. Route the hose to the small drain stub on the condensate trap. Cut

off excess hose and discard. Connect the hose to the drain stub on the trap and secure with a 5/8" clamp.

NOTE: Route hoses to the condensate trap with no kinking or binding for proper condensate drainage.

HorizontalLeftInstallations (Dual Certified *9MPD-A4 Models)

NOTE: TRAP MUST BE PRIMED BEFORE OPERATION

Model shown with two

ipe Combustion Air

Pipe,(optional)

Supply Air

Vent Pipe

PVCVent

Extension Pipe

Vent Fitting & Clamps Yellow RubberCouplings

Plastic & Clamps 90° Elbow

& Clamps 2" PVCPipe _tate downward

Grommet

& Clamps Plastic Cap

11" Section

5/16" OD

Rubber

pressure switches

DRAIN SIDE VIEW

Horizontal Trap Connection

Blower

Transition

3/4" Hose & Clamps

"Clamp ears" Pointed OUT

Preassembleand insert intofurnace

Return Air

25-24-12

Condensate

Trap & Gasket

(Field Supplied) DrainLine_: _

angled5° to10° also.

Horizontal Left Installations - (Dual Certified *9MPD) (See Figure 10)

Note: DO NOT make hose connections until the hose routing and lengths have been determined. Remove the condensate trap and

drain hoses from the furnace and secure the drain hoses to the drain stubs on the trap with the hose clamps (position the clamps

as shown in Figure 10). Install the condensate trap/hose assem- blyto the furnace casing. Hook one side ofthe"clamp ears" on the drain stub through the hole in the casing and push the condensate trap into position. Secure with the two screws. Reconnect the drain hoses to the stubs on the vent fitting and the plastic transi- tion and secure with the clamps.

Relocate the plastic cap and clamp from the vertical transition drain stub to the horizontal transition drain stub on the conden-

sate drain trap. Secure the clamps tightly to prevent condensate leakage. Do not change the cap and clamp on the vent drain stub.

Mount the condensate drain trap in a vertical position to the left side of the furnace using the two screws and gasket that are pro- vided. Note: The condensate trap will be located under the fur-

nace in a vertical position when the furnace is placed horizontally on the left side. Ifneeded, remove the hole plugs from the furnace side panel and relocate to the open set of holes in the opposite

side panel. NOTE: All gaskets and seals must be in place for sealed combus-

tion applications.

Remove the 90 ° elbow and vent fitting from the combustion blow- er by loosening the clamps on the vent fitting. Connect the 90 ° el- bow to the combustion blower using the rubber coupling and cla raps. Note for proper alignment of the vent pipe through the fur-

nace, the 90 ° elbow must be installed with the "HORIZONTAL" lettering on the 90 ° elbow facing out. Connect a 11" section of 2"

PVC pipe (field supplied) to the 90 ° elbow using the rubber cou- pling and clammps. The PVC pipe will extend through the top pa n- el a bout 11/2". Connect the vent fitting to the end of the 11" section of PVC pipe using the clamp.

NOTE: The 90 ° elbow is approved for use inside the furnace ONLY.

NOTE: The vent fitting MUST be installed with the airflow marking arrow pointed toward the vent pipe, with the drain stub at a 5° to 10 ° downward slope.

Plug the upper drain stub on the vent fitting with the yellow plastic cap.

Single Pressure Switch

Connections on

All models except 125

[_ 44001 111400

PVCventextensiontubetofield-installedventpipe.Securelyat- tachthePVCventextensionpipetotheventfittingwiththeclarap.

Connectthe 5/8" OD rubber hose with the 90 ° bend to the lower

drain stub on the vent fitting and secure with a 5/8" clamp. Route the hose to the horizontal drain stub on the condensate

trap. Cut off excess hoses and discard. Connect the hose to the drain stub on the condensate trap and secure with a 5/8" clamp.

Connect the 3/4" OD rubber hose with the 90 ° bend to the large drain stub on the condensate trap and secure with a 3/4" clamp.

Route the hose to the drain stub on the bottom of the plastic transi-

i i

Horizontal Right Installations (Dual Certified *9MPD-A4 Models)

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

tion box. Cut off excess hose and discard. Connect the hose tothe drain stub on the transition and secure with a 3/4" clamp.

The pressure tap on the condensate trap MUST be connected to the unused pressure tap located on the top of the plastic transition box. Remove the plastic caps from the pressure taps on the con-

densate trap and the plastic transition and connect with the 5/16" OD rubber hose.

NOTE: This will require drilling a 5/16" OD hole in the furnace cas- ing next to the condensate trap.

NOTE: Ensure hoses maintain a downward slope to the conden- sate trap with no kinking or binding for proper condensate drain- age.

NOTE: TRAP MUST BE PRIMED BEFORE OPERATION

DRAIN SIDE VIEW Vent Fitting Yellow Coml_ustion.

Y "sot:W:w"ward C'aop ..astic Cap Von.Pip°__ A.r..pe<ept.oT.

/ _ / /__ PVCVent _. h_ _ /

_,_ "/ _ _ Extension Pipe \__ /

NOT .JBu_be _' /_ Vent Fitting /

angled5o toiOO also. &Ruc__:pCso upling.........._ _ _ _ /&C/lamps\ _ "_

Model shown with two _/_ _, _ _ Supply Air I

Hor,zonta.TrapConne.ion '.

X_ --_ \ Po,n_eaOUT /7_ \ _e.spre SwitchHose. _ ;X3L/\ Si.g.ePre...reSwitch

/_ _-_ / ' s14" Hose &Clamps Transition / _ _ _-- Connections on

/ _/°7// _ / _, " ............ /_ AII models except125

[ I/J_ _ I )/ Condensate Trap / _ /I _ )) \ J_-&j "_/) / /J & Gasket / Drain [/

and insert into furnace

Horizontal Right Installations - (Dual Certified *9MPD) (See Figure 11)

Note: DO NOT make hose connections until the hose routing and lengths have been determined. Remove the condensate trap and

drain hoses from the furnace and secure the drain hoses to the drain stubs on the trap with the hose clamps (position the clamps as shown in Figure 11). Install the condensate trap/hose assem-

bly to the furnace casing. Hook one side ofthe"clamp ears" on the drain stub through the hole in the casing and push the condensate

trap into position. Secure with the two screws. Reconnect the drain hoses to the stubs on the vent fitting and the plastic transi- tion and secure with the clamps.

"Clamp ears" Plastic Cap//_..__J \ \ '_

Relocate the plastic caps and clamps on the condensate drain trap from the vertical drain stub to the horizontal drain stubs. Se-

cure the clamps tightly to prevent condensate leakage. Mount the condensate drain trap in a vertical position to the right

side of the furnace using the two screws and gasket that are pro- vided. Note: The condensate trap will be located under the fur- nace in a vertical position when the furnace is placed horizontally on the right side. If needed, remove the hole plugs from the fur- nace side panel and relocated to the open set of holes in the oppo- site side panel.

44001 111400 [_

NOTE:Allgasketsandsealsmustbein place for sealed combus-

tion applications. Remove the 90 ° elbow and vent fitting from the combustion blow-

er by loosening the clamps on the vent fitting. Connect the 90 ° el- bow to the combustion blower using the rubber coupling and cla raps. Note for proper alignment of the vent pipe through the fur-

nace, the 90 ° elbow must be installed with the "HORIZONTAL" lettering on the 90 °elbow facing out. Connect the vent fitting to the

end of the 90 ° elbow using the clamp.

NOTE: The 90° elbow is approved for use inside the furnace ONLY.

NOTE: The vent fitting MUST be installed with the airflow marking arrow pointed toward the vent pipe, with the drain stub at a 5° to 10° downward slope.

Plug the upper drain stub on the vent fitting with the yellow plastic cap.

Connect the PVC vent extension pipe to the vent fitting. This pipe has a built-in channel to assist vent condensate disposal.

Align the arrow on the PVC pipe with the airflow marking arrow on the vent fitting. See label on the PVC pipe for proper installation.

This pipe may only be shortened if an elbow is used to connect the PVC vent extension tube to field-installed vent pipe. Securely at- tach the PVC vent extension pipe to the vent fitting with the clamp.

Remove the pressure switch hose from the upper stub on the plastic transition box.

Relocate the plastic caps on the stubs of the plastic transition box from the lower stubs to the upper stubs and secure tightly with the clamps.

Route the pressure switch hose to the lower stub on the plastic transition box. Cut off excess hose and discard. Connect the pres- sure switch hose to the lower stub on the plastic transition box.

Ensure that the hose is routed above the stub on the transition box sothat condensate does not collect in the hose. NOTE: Failure to

correctly install the pressure switch hose to the transition can ad- versely affect the safety control operation.

Connect the 3/4" OD rubber hose with the 90 ° bend to the large drain stub on the condensate trap and secure with a 3/4" clamp.

Route the hose to the drain stub on the bottom of the plastic tran- sition box. Cut off excess hose and discard. Connect the hose to

the drain stub on the transition and secure with a 3/4" clamp. Connect the 5/8" OD rubber hose with the 90 ° bend to the lower

drain stub on the vent fitting and secure with a 5/8" clamp. Route the hose to the smaller drain stub on the condensate trap.

Cut off excess hose and discard. Connect the hose to the drain stub on the trap and secure with a 5/8" clamp.

NOTE: Route hoses to the condensate trap with no kinking or binding for proper condensate drainage.

E_ 44001 111400

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Downflow Installations (Dual Certified *9MPD-A4 Models)

NOTE: TRAP MUST BE PRIMED BEFORE OPERATION

DRAIN SIDE VIEW LEFT Side VentJn_ RIGHT Side Venting

_tate downward @

/ 5° to 10° v

/ ReturnAir ReturnAir

NOTE'_ Bddt-in channel _ll be angled 5° to 10° also.

Combustion

_4_ AirPipe,(Optional)

PVC Vent Yellow /

Extenst?n Ptpe Pressure Switch Plastic Cap _ /

-_ / Hose,Transition / _ /

n LU / (Rotate180° for LeftSide) \ / / VentPine P L _ \ _ Plastic / -7 r

_>- _ _ \ \ Cap _/ _ /

1 &Clamps _8" H°se_ \ Plastic Caps

S.pp,, X

_LJ Single Pressure Switch {F}L_

Connections()nail /l_/" 2PressureSwitch

models except 125

moaetsexcepltza _ Connectiononall 125models

3/4" Hose _ _ _ \ Pipe

Downflow Installations - (Dual Certified *9MPD Models) (See Figure 12)

NOTE: DO NOT make hose connections until the hose routing

and lengths have been determined. Remove the condensate trap and drain hoses from the furnace and secure the drain hoses to

the drain stubs on the trap with the hose clamps (position the clamps as shown in Figure 12). Install the condensate trap/hose

assemblyto the furnace casing. Hook one side ofthe"cla mp ears"

44001 111400

on the drain stub through the hole in the casing and push the con- densate trap into position. Secure with the two screws. Recon- nect the drain hoses to the stubs on the vent fitting and the plastic transition and secure with the clamps.

Mount the condensate drain trap in a vertical position to either the right or left side of the furnace using the two screws and gasket

that are provided. If needed, remove the hole plugs from the fur- nace side panel and relocated to the open set of holes in the oppo- site side panel.

NOTE: All gaskets and seals must be in place for sealed combus- tion applications.

For both right and left side vent, remove the 90 ° elbow from the vent fitting by loosening the clamp on the vent fitting.

Ensure that the vent fitting is securely attached to the combustion blower using the rubber coupling and clamps.

cure the blower to the transition approximately 1/2". Rotate the blower 180 ° and secure with the four(4) screws. Note that some

combustion blowers have plastic spacers on the mounting legs of

the blower located at the 6 and 12 o'clock positions (blower snout to the left or right) that are required for proper fit up of the blower to the transition. Use caution to not over tighten the screws to pre-

vent stripping out of the plastic mounting holes. NOTE: The vent fitting MUST be installed with the airflow marking

arrow pointed toward the vent pipe, with the drain stub at a 5° to 10 ° downward slope.

Plug the upper drain stub on the vent fitting with the yellow plastic cap.

Connect the PVC vent extension pipe to the vent fitting. This pipe has a built-in channel to assist vent condensate disposal. Align the arrow on the PVC pipe with the airflow marking arrow on

the vent fitting. See label on the PVC pipe for proper installation. This pipe may only be shortened if an elbow is used to connect the PVC vent extension tube to field-installed vent pipe. Securely at- tach the PVC vent extension pipe to the vent fitting with the clamp.

Remove the pressure switch hose from the upper stub on the plastic transition box.

Relocate the plastic caps on the stubs of the plastic transition box from the lower stubs to the upper stubs and secure tightly with the clamps.

Route the pressure switch hose to the lower stub on the plastic transition box. Cut off excess hose and discard. Connect the pres-

sure switch hose to the lower stub on the plastic transition box. NOTE: Failure to correctly install the pressure switch hose to the

transition box can adversely affect the safety control operation. Connect the 3/4" OU rubber hose with the 90 ° bend to the drain

stub on the bottom of the plastic transition box and secure with a 3/4" clamp.

Route the hose to the large drain stub on the condensate trap. Cut off excess hose and discard. Connect the hose to the drain stub

on the transition and secure with a 3/4" clamp. Connect the 518" OD rubber hose with the 90 ° bend to the lower

drain stub on the vent fitting and secure with a 518" clamp. Route the hose to the smaller stub on the condensate trap. Cut off

excess hose and discard. Connect the hose to the drain stub on the trap and secure with a 5/8" clamp.

For left side or right side mounted condensate trap, the pres- sure tap on the condensate trap MUST be connected to the un- used pressure tap located on the top of the plastic transition box. Remove the plastic caps from the pressure taps on the conden- sate trap and the plastic transition and connect the 5/16" OD rub- ber hose. (See Figure 12)

NOTE: Route hoses to the condensate trap with no kinking or binding for proper condensate drainage.

[_ 44001 111400

Upflow Installations (Single Pipe N9MP1 & Direct Vent N91VIP2-A4 Models)

NOTE: TRAP MUST BE PRIMED BEFORE OPERATION

DRAIN SIDE VIEW VentFitting

/,/_a te & Clampsdownward

PVC Vent

Extension Pipe

NOTE_. Built-in channel will be angled 5° to 10° also.

LEFT Side Venting

Trap Connection

lamp ears '_

inted OUT

Preassemble & insert into furnace

Single Pressure Switch

Connections on all models except 125

Upflow Installations - (Single Pipe & Direct Vent N9MP1

NOTE: DO NOT make hose connections until the hose routing and lengths have been determined. Remove the condensate trap

and drain hoses from the furnace and secure the drain hoses to the drain stubs on the trap with the hose clamps (position the

clamps as shown in Figure 13). Install the condensate trap/hose assembly to the furnace casing. Hook one side ofthe"cla mp ears" on the drain stub through the hole in the casing and push the con- densate trap into position. Secure with the two screws. Recon- nect the drain hoses to the stubs on the vent fitting and the plastic transition and secure with the clamps.

Mount the condensate drain trap in a vertical position to either the left or right side of the furnace using the two screws and gasket

that are provided. If needed, remove the hole plugs from the fur- nace side panel and relocate to the open set of holes in the oppo- site side panel.

NOTE: All gaskets and seals must be in place for sealed combus- tion applications.

Ensure that the vent fitting is securely attached to the combustion blower using the rubber coupling and clamps.

NOTE: For left side venting, the vent fitting MUST be installed

with the airflow marking arrow pointed toward the vent pipe, with

the drain stub at a 5° to 10 ° downward slope. Connect the PVC vent extension pipe to the vent fitting. This pipe

has a built-in channel to assist vent condensate disposal. Align the arrow on the PVC pipe with the airflow marking arrow on

44001 111400

dwg 25-24-06

& N9MP2 Models) (See Figure 13)

This configuration allows left side venting from the furnace. If right side venting is required, the combustion blower must be relocated on the plastic transition box. Loosen the four(4) screws that se- cure the blower to the transition approximately /2'. Rotate the blower 180 ° and secure with the four(4) screws. Note that some combustion blowers have plastic spacers on the mounting legs of the blower located at the 6 and 12 o'clock positions (blower snout to the left or right) that are required for proper fit up of the blower to the transition. Use caution to not over tighten the screws to pre- vent stripping out of the plastic mounting holes.

NOTE: For right side venting, the vent fitting MUST be installed with the airflow marking arrow pointed toward the vent pipe, with the drain stub at a 5° to 10 ° downward slope. (See Figure 14)

Plug the upper drain stub on the vent fitting with the yellow plastic cap.

1 ,

Forleftsidemountedcondensatetrap,connectthe3/4"ODrub- berhosewiththe90°bendtothelargedrainstubontheconden- satetrapandsecurewitha3/4"clamp.

Routethehosetothedrainstubonthebottomoftheplastictransi- tionbox.Cutoffexcesshoseanddiscard.Connectthehosetothe

drainstubonthetransitionandsecurewitha3/4"clamp.

Upflow Installations (Single Pipe N9MP1 & Direct Vent N9MP2-A4 Models)

RIGHTSideVenting NOTE: TRAP MUST BE PRIMED BEFORE OPERATION

Supply Air

N9MP; ONLY

Forrightsidemountedcondensatetrap,connectthe3/4"ODrub- berhosewiththe90°bendtothebottomoftheplastictransition boxandsecurewitha3/4"clamp.

Routethehosetothelargedrainstubonthecondensatepump. Cutoffexcesshoseanddiscard.Connectthehosetothedrain

stubonthecondensatetrapandsecurewitha3/4"clamp.

(Rotate 180° for Left Side) Combustion Blower

Screws (4)

Models shown have two

pressure switch

Combustion Blower (Rotate 100°

DRAIN SIDE VIEW

5° to 10°

Vent Drain

3uiit-in channel will

angled 5° to 10 ° also.

For left side or right side mounted condensate trap, the pres- sure tap on the condensate trap MUST be connected to the un- used pressure tap located on the upper right hand corner of the plastic transition box. Remove the plastic caps from the pressure taps on the condensate trap and the plastic transition and connect

with the 5/16" OD rubber hose. (See Figure 13 and Figure 14)

Connect the 5/8" OD rubber hose with the 90 ° bend to the lower

Single Pressure Switch

Connections on all models except 125

25-24-05

drain stub on the vent fitting and secure with a 5/8" clamp.

Route the hose to the smaller drain stub on the condensate trap. Cut off excess hose and discard. Connect the hose to the drain

stub on the trap and secure with a 5/8" clamp. NOTE: Route hoses to the condensate trap with no kinking or

binding for proper condensate drainage.

[_ 44001 111400

Horizontal Left Installations (Single Pipe N9MP1 & Direct Vent N9MP2-A4 Models)

NOTE: TRAP MUST BE PRIMED BEFORE OPERATION

Models shown have two pressure switch

_._lastic Cap

Supply _

Air ,_

_> Inlet

Combustion AirPipe, N9MP2ONLY

VentFitting

tPipe &Clamps

VentFitting&Clamps

"Hose & Clamps

Condensate

Trap & Gasket

Transition

518" Hose & Clamps

Return

Air

)Connection

25-23-58

"Clamp ears"

, Pointed OUT

Single Pressure Switch and insert Connections on all _L, into furnace models except 125

Drain Line

Horizontal Left Installations - (Single Pipe & Direct Vent N9MP1 & N9MP2 Models) (See Figure 15)

NOTE: DO NOT make hose connections until the hose routing and lengths have been determined. Remove the condensate trap

and drain hoses from the furnace and secure the drain hoses to the drain stubs on the trap with the hose clamps (position the

clamps as shown in Figure 15). Install the condensate trap/hose assembly to the furnace casing. Hook one side of the "clamp ears"

on the drain stub through the hole in the casing and push the con- densate trap into position. Secure with the two screws. Recon-

nect the drain hoses to the stubs on the vent fitting and the plastic transition and secure with the clamps.

Relocate the plastic caps and clamps on the condensate drain trap from the vertical drain stubs to the horizontal drain stubs. Se- cure the clamps tightly to prevent condensate leakage.

Mount the condensate drain trap in a vertical position to the left side of the furnace using the two screws and gasket that are pro- vided. Note: The condensate trap will be located under the fur- nace in a vertical position when the furnace is placed horizontally on the left side. Ifneeded, remove the hole plugs from the furnace side panel and relocated to the open set of holes in the opposite side panel.

NOTE: All gaskets and seals must be in place for sealed combus- tion applications.

Relocate the combustion blower on the plastic transition box. Re- move the four(4) screws that secure the blower to the transition

box. Rotate the blower 180 ° so the blower snout is pointing up and secure with the four(4) screws. Note that some combustion blow-

ers have plastic spacers on the mounting legs of the blower lo- cated at the 6 and 12 o'clock positions (blower snout to the left or right) that are required for proper fit up of the blower to the transi- tion. Use caution to not over tighten the screws to prevent strip- ping out of the plastic mounting holes.

Ensure that the vent fitting is securely attached to the combustion blower using the rubber coupling and clamps.

NOTE: The vent fitting MUST be installed with the airflow marking arrow pointed toward the vent pipe.

Plug the left drain stub on the vent fitting with the yellow plastic cap.

Connect the 3/4" OD rubber hose with the 90 ° bend to the large drain stub on the condensate trap and secure with a /4' clamp.

Route the hose to the drain stub on the bottom of the plastic transi- tion box. Cut off excess hose and discard. Connect the hose tothe

drain stub on the transition and secure with a 3/4" clamp. Connect the 518" OD rubber hose with the 90 ° bend to the right

drain stub on the vent fitting and secure with a 518" clamp. Route the hose to the smaller drain stub on the condensate trap.

Cut off excess hose and discard. Connect the hose to the drain stub on the vent fitting and secure with a 5/8" clamp,

NOTE: Route hoses to the condensate trap with no kinking or binding for proper condensate drainage.

3 ,

44001 111400 [_

Horizontal Right Installations (Single Pipe & Direct Vent N9MP1 & N9MP2-A4 Models)

NOTE: TRAP MUST BE PRIMED BEFORE OPERATIONveni_ipls_lv__Plastic

Cap

518" Hose &\

Return

Air

Modelsshownhave__ twopressureswitches

Clamps _

Vent Fitting & Clamps

Combustion Air Pipe,

N9MP2 ONLY

Inlet

Supply Air

dwg25-23-59a

Horizontal Trap Connection

"Clamp ears" Cap Switch, Transition ps Pointed OUT

Preassemble and insert

into furnace

Plastic Pressure 3/4" Hose

Condensate Trap & Gasket Switch, Blower

Drain Line

Horizontal Right Installations - (Single Pipe & Direct Vent N9MP1 & N9MP2 Models) (SeeFigure16)

NOTE: DO NOT make hose connections until the hose routing and lengths have been determined. Remove the condensate trap

and drain hoses from the furnace and secure the drain hoses to the drain stubs on the trap with the hose clamps (position the

clamps as shown in Figure 16). Install the condensate trap/hose assembly to the furnace casing. Hook one side of the "clamp ears" on the drain stub through the hole in the casing and push the con- densate trap into position. Secure with the two screws. Recon- nect the drain hoses to the stubs on the vent fitting and the plastic transition and secure with the clamps.

Relocate the plastic caps and clamps on the condensate drain trap from the vertical drain stub to the horizontal drain stubs. Se- cure the clamps tightly to prevent condensate leakage.

Mount the condensate drain trap in a vertical position to the right side of the furnace using the two screws and gasket that are pro- vided. Note: The condensate trap will be located under the fur- nace in a vertical position when the furnace is placed horizontally on the right side. If needed, remove the hole plugs from the fur-

nace side panel and relocate to the open set of holes in the oppo- site side panel.

NOTE: All gaskets and seals must be in place for sealed combus- tion applications.

Ensure that the vent fitting is securely attached to the combustion blower using the clamps.

NOTE: The vent fitting MUST be installed with the airflow marking arrow pointed toward the vent pipe.

Plug the left drain stub on the vent fitting with the yellow plastic cap.

Remove the pressure switch hose from the upper stub on the plastic transition box.

Relocate the plastic ca ps on the stubs of the plastic transition from the lower stubs to the upper stubs and secure tightly with the clamps.

Route the pressure switch hose to the lower stub on the plastic transition box. Cut off excess hose and discard. Connect the

pressure switch hose to the lower stub on the plastic transition box. Ensure that the hose is routed above the stub on the transi-

tion box so that condensate does not collect in the hose. NOTE: Failure to correctly install the pressure switch hose to the transi-

tion can adversely affect the safety control operation.

Pressure Switch

Hose, Transition

Connections on all models except 125

Single Pressure Switch

[_ 44001 111400

Connectthe 3/4" OD rubber hose with the 90 ° bend to the large

drain stub on the condensate trap and secure with a 3/4" clamp. Route the hose to the drain stub on the bottom of the plastic transi-

tion box. Cut off excess hose and discard. Connect the hose to the drain stub on the transition and secure with a 3/4" clamp.

Connect the 5/8" OD rubber hose with the 90 ° bend to the right s-

Downflow Installations (Single Pipe N9MP91 & Direct Vent N9MP2-A4 Models)

tub on the vent fitting and secure with a 5/8" clamp. Route the hose to the smaller drain stub on the condensate trap.

Cut off excess hose and discard. Connect the hose to the drain stub on the trap and secure with a 5/8" clamp.

NOTE: Route hoses to the condensate trap with no kinking or binding for proper condensate drainage.

VentFitting

&Clampi

PVCVent Extension

Condensate

Trap & Gasket

LEFT Side Ventin_

<C>

Return Air

Combustion Blower) Plastic (Rotate 180°)

Modelshown have two pressure

switches

Pressure Switch Hose, Transition

RIGHT Side Venting

ReturnAir

Air Intake

Combustion Air Pipe,

PVC Vent Extension

Pipe

Yellow VentFitting

2PressureSwitch Connectiononall125 models

Connectionsonall

models except 125

Single PressureSwitch beangled 5° to10° also.

NOTE: TRAP MUST BE PRIMED BEFORE OPERATION

Downflow Installations - (Single Pipe & Direct Vent N9MP1 &

NOTE: DO NOT make hose connections until the hose routing and lengths have been determined. Remove the condensate trap

and drain hoses from the furnace and secure the drain hoses to the drain stubs on the trap with the hose clamps (position the

clamps as shown in Figure 17). Install the condensate trap/hose assembly to the furnace casing. Hook one side ofthe"cla mp ears" on the drain stub through the hole in the casing and push the con- densate trap into position. Secure with the two screws. Recon-

SupplyAir

DRAIN SIDE VIEW

5° to10°

dwg25-24-04

N9MP2 Models) (See Figure 17)

nect the drain hoses to the stubs on the vent fitting and the plastic transition and secure with the clamps.

Mount the condensate drain trap in a vertical position to either the right or left side of the furnace using the two screws and gasket that are provided. If needed, remove the hole plugs from the fur- nace side panel and relocated to the open set of holes in the oppo- site side panel.

44001 111400 [_

NOTE:Allgasketsandsealsmustbein place for sealed combus-

tion applications. Ensure that the vent fitting is securely attached to the combustion

blower using the rubber coupling and clamps. Connect the PVC vent extension pipe to the vent fitting. This pipe

has a built-in channel to assist vent condensate disposal. Align the arrow on the PVC pipe with the airflow marking arrow on

This configuration allows left side venting from the furnace. If right side venting is required, the combustion blower must be relocated

on the plastic transition box. Loosen the four(4) screws that se- cure the blower to the transition approximately 1/2". Rotate the

blower 180 ° and secure with the four(4) screws. Note that some combustion blowers have plastic spacers on the mounting legs of

vent stripping out of the plastic mounting holes. NOTE: The vent fitting MUST be installed with the airflow marking

arrow pointed toward the vent pipe, with the drain stub at a 5 ° to 10 ° downward slope.

Plug the upper drain stub on the vent fitting with the yellow plastic cap.

Remove the pressure switch hose from the upper stub on the plastic transition box.

Relocate the plastic caps on the stubs of the plastic transition box from the lower stubs to the upper stubs and secure tightly with the clamps.

Route the pressure switch hose to the lower stub on the plastic transition box. Cut off excess hose and discard. Connect the pres- sure switch hose to the lower stub on the plastic transition box. NOTE: Failure to correctly install the pressure switch hose to the transition box can adversely affect the safety control operation.

Connect the 3/4" OD rubber hose with the 90 ° bend to the drain stub on the bottom of the plastic transition box and secure with a

3/4" clamp. Route the hose to the large drain stub on the condensate trap. Cut

off excess hose and discard. Connect the hose to the drain stub on the transition and secure with a 3/4" clamp.

Connect the 5/8" OD rubber hose with the 90 ° bend to the left drain stub on the vent fitting and secure with a 5/8" clamp.

Route the hose to the smaller stub on the condensate trap. Cut off excess hose and discard. Connect the hose to the drain stub on

the trap and secure with a 5/8" clamp. For left side or right side mounted condensate trap, the pres-

sure tap on the condensate trap MUST be connected to the un-

used pressure tap located on the top of the plastic transition box. Remove the plastic caps from the pressure tap on the condensate trap and the plastic transition and connect the 5/16" OD rubber hose. (See Figure 17)

NOTE: Route hoses to the condensate trap with no kinking or binding for proper condensate drainage.

Connecting Vent and Combustion Air Piping

CARBON MONOXIDE POISONING HAZARD

Failure to properly seal vent piping can result in death, personal injury and/or property damage.

Cement or mechanically seal all joints, fittings, etc. to prevent leakage of flue gases.

Refer to the Figure 8 through Figure 17 that corresponds to the installation position of the furnace for the application.

Preassemble the vent and combustion air piping from the furnace to the vent termination. Do not cement the pipe joints until the pipe preassembly process is complete.

Combustion Air Pipe Connection (Dual Certified or

Direct Vent) Install the air intake coupling and gasket to the furnace with the

four(4) screws. Note: The air intake coupling and gasket can be installed to the

top panel to the alternate air intake locations on either the left or right side panels of the furnace.

For downflowinstallation, the air intake coupling and gasket must

be installed to the alternate air intake location on either the left or right side panels. Remove the 3" hole plug from the side panel and

relocate to the air intake hole in the top panel. Use four screws to seal the four(4) mounting holes in the top panel next to the hole plug. Drill four(4) 7/64" diameter holes in the casing using the air intake coupling as the template.

The air intake coupling is sized for 2" PVC pipe. Install the combustion air pipe to the air intake coupling using RTV

sealant to provide for future serviceability.

Vent Pipe Connection

Install the vent pipe grommet to the furnace panel. Locate the grommet in the furnace panel at a location directly away from the vent fitting on the combustion blower. The grommet snaps intothe

3" hole plug from the furnace panel. NOTE: Depending on the

installation position, the vent pipe grommet will be installed to the top panel or tothe alternate location on the side panels. If needed,

remove the 3" hole plug from the furnace panel and relocate to the open hole in the furnace panel. (See Figure 12 or Figure 17)

Install the vent pipe to the rubber coupling, the vent fitting or the PVC vent extension pipe. Securely attach using the clamp or PVC cement as required.

Note: The vent fitting MUST be installed with the air flow marking arrow pointed toward the vent pipe. (See Figure 18)

Some installations require the vent fitting to be installed with a 5 ° to 10 ° downward slope. (See Figures 8 - 17)

[_ 44001 111400

Proper Sealing Procedure for

Combustion Blower

RubberCoupling J ._ VentPipe

& Clamps--__ ____ _ _ (Top Panel Exit)

tPipe _ NOTE: The 90 ° elbow is ap-

90° Elbow &Clamps

Vent Extension _'_. Pipe (Side Panel

Exit)

DRAIN SIDE VIEW

_/_'ia te downward

NOIF.guilt-inchannelwill beangled5°to 10° also.

proved for use inside the furnace ONLY.

Joining Pipe and Fittings

Vent Fitting

Combustion

Blower

25-24-14

NOTE: Stir the solvent cement frequently while using. Use a natu- ral bristle brush or the dauber supplied with the cement. The prop-

er brush size is one inch.

2. After checking pipe and socket for proper fit, wipe socket and pipe with cleaner-primer. Apply a liberal coat of primer to inside surface of socket and outside of pipe. Do NOT al-

low primer to dry before applying cement.

3. Apply a thin coat of cement evenly in the socket. Quickly apply a heavy coat of cement to the pipe end and insert pipe into fittings with a slight twisting movement until it bot-

toms out.

NOTE: Cement MUST be fluid while inserting pipe. If NOT, recoat pipe.

4. Hold the pipe in the fitting for 30 seconds to prevent the ta- pered socket from pushing the pipe out of the fitting.

5. Wipe all excess cement from the joint with a rag. Allow 15 minutes before handling. Cure time varies according to fit, temperature and humidity.

Connecting Vent Pipes and Termination

NOTE: Combustion air intake and vent MUST terminate in the same atmospheric pressure zone. If installation is in a cold cli-

mate (sustained temperatures below 0 °F), increase the minimum distance between vent pipe and air intake from 8" to 18".

CAUTION

Maintain a minimum of 36" between combustion air inlet and clothes dryer vent. Terminate the combustion air intake as

far as possible from any air conditioner, heat pump, swimming pool, swimming pool pumping, chlorinator or

filtration unit.

FIRE HAZARD

Observe all cautions and warnings printed on material containers to prevent possible death, personal injury and/or property damage.

Provide adequate ventilation and do NOT assemble near heat source or open flame. Do NOT smoke while using solvent cements and avoid contact with skin or eyes.

This furnace is approved for venting with Schedule 40 PVC, CPVC, ABS, Cellular Core pipe fittings and SDR-26 PVC.

Pipe and Fittings - ASTM D1785, D2241, D2466, D2661,

D2665, F-891, F-628

• PVC Primer and 5olvent Cement- ASTM D2564

• Procedure for Cementing Joints - Ref ASTM D2855

NOTE: In order to create a seal that allows future removal of pipe, RTV sealant MUST be used on the inlet pipe where itjoins to the furnace. PVC, CPVC, ABS, and Cellular Core pipe and ce- ment may be used on all other joints.

CAUTION

Do NOT use solvent cement that has become curdled, lumpy or thickened and do NOT thin. Observe precautions printed

on containers. For applications below 32 ° F., use only low

temperature type solvent cement.

1. Cut pipe end square, remove ragged edges and burrs. Chamfer end of pipe, then clean fitting, socket and pipe

joint of all dirt, grease, or moisture.

Install all couplings, nipples and elbows using proper pro- cedures for Joining Pipe and Fittings and maintain spac-

ing between vent and combustion air piping as indicated in Figure 19 through Figure 27.

Sidewall Termination 12" or More

Above Snow Level or Grade Level

MIN. _18" Minimum for cold climates

(substained below 0° F)

Horizontal Termination

Cuttwoholes. 2 /2' for 2"pipe, 3" for 2 /2' pipe, or3 /2' for 3" pipe. Do NOT make the holes oversized, or it will be nec- essary to add a sheet metal or plywood plate on the outside

with the correct size hole in it.

1 , 1 ,

44001 111400 I_

2. Checkholesizesbymakingsureitissmallerthan the cou-

plings or elbows that will be installed on the outside. The couplings or elbows MUST prevent the pipe from being pushed back through the wall.

3. Extend vent pipe and combustion air pipe through the wall 3/4" to 1" and seal area between pipe and wall.

4. Install the couplings, nipple and termination elbows as shown and maintain spacing between vent and combus- tion air piping as indicated in Figure 19 and Figure 20.

A metal shield is recommended 18" x 18" min. or 18" rain. diame- ter around the vent termination at the exterior wall to protect the

house exterior materials from flue product or condensation (freez- ing) damage.

UsingExterior Risers

1. Install elbows and pipe to form riser as shown in Figure 20.

2. Secure vent pipe to wall with galvanized strap or other rust resistant material to restrain pipe from moving.

3. Insulate pipe with Armaflex or equivalent moisture resis- tant closed cell foam insulation or Fiberglass insulation if boxed in and sealed against moisture.

ii Sidewall Termination with Exterior

Fi_2_ : Risers to Get Above Snow Level or

Grade Level

8" _ _ / 18 Mmtmumfor coldchmates

MIN. J / _-_ (substainedbelow0° F)

20' _'_

Rooftop Termination

A = 12" Above roofor snow accumulationlevel

B= 8" Min.,20' Maximum,except in areaswith extreme coldtemperatures

(sustainedbelow0°% the 18" Min.

Vent Termination Shielding

Under certain wind conditions some building materials may be af- fected by flue products expelled in close proximity to unprotected surfaces. Sealing or shielding of the exposed surfaces with a cor- rosion resistant material (such as aluminum sheeting) may be re- quired to prevent staining or deterioration. The protective material should be attached and sealed (if necessary) to the building be- fore attaching the vent terminal.

Multi Vent Termination Clearances

: =

%. / 8NOW LEVEL _=Sq30-04F

Vertical Termination

1. Figure 21 shows the proper installation and clearances for vertical vent termination. The vertical roof termination

should be sealed with a plumbing roof boot or equivalent flashing. The inlet of the intake pipe and end of the exhaust

vent must be terminated no less than 12" above the roof or snow accumulation level, and 12" away from a vertical wall

or other protrusion.

2. If the vent system is installed in an existing chimney make sure clearances shown in Figure 21 are maintained. Hori-

zontal section before the termination elbow can be ex- tended on the inlet air to provide necessary clearance.

When two (2) or more furnaces are vented near each other, each furnace must be individually vented.

Two (2) vent terminations may be installed as shown in Figure 22, Figure 23, Figure 24, Figure 25, Figure 26 and Figure 27, but the next vent termination must be at least 36" away from first 2 terminations. It is important that vent terminations be made as shown to avoid recirculation of flue gases.

Concentric Vent and Combustion- Air Roof Termination

12"Min. Gradeorl Snow Level

Combustion Air

Dimension "A" is touching or 2" maximum separation.

[_ 44001 111400

Concentric Vent and Combustion- Air Sidewall Termination

Rooftop Inlet Vent and Exhaust- Air Termination

1"Maximum

Exhaust

Dimension "A" is touching or 2" maximum separation.

J jJ

Sidewall Inlet Vent and Exhaust-

Air Termination

20'Max.

18" Min.for

Cold Climates (Sustained Below0° F)

12"Min. Grade or

Snow Level

25-22-02d

8"Min.

18"Min. for Cold Climates _

12" Min.

Level

_e;i_271 Recommended Alternate

:) 8" Min. \

Inlet 20' Max.

Installation for Sustained Cold

Weather (-O° F & below)

EXH_T

INLET

Exhaust

25-22-43

_mension "A" is touching or 2" maximum separation.

Sidewall Inlet Vent and Exhaust-Air Termination with Exterior Risers

18"Min. for Cold Climates

(Sustained Below 0° F)

Dimension "A" is touching or 2" maximum separation.

8"Min.

12" Min. Grade or Snow

Inlet Level

FRONT VIEW

l Same Joist _

Space

12" MIN.Ground Level

-- _'_ OR Snow Level

SIDE VIEW

12"

25-23-73

44001 1114O0 [_

5. Gas Supply and Piping

Gas Pressures Below 2000'

CARBON MONOXIDE POISONING, FIRE AND EXPLO- SION HAZARD

Models designated for Natural Gas are to be used with Natural Gas Only, unless properly converted to use with LP gas.

Furnace operating with the wrong fuel result in death, personal injury and/or property damage.

NOTE: The rating plate is stamped with the model number, gas type and gas input rating. In addition, models manufactured for sale in Canada have orifice size information stamped on the rat- ing plate.

AlternateBTUHInputRatings(USA Only)

The input rating of these furnaces can be changed from the stan- dard input rating to the alternate input rating shown in Table 5, by changing the main burner orifices. NOTE: The input rating ot 80,000 BTUH models cannot be changed from the standard in- put. Changing of burner orifices MUST be done by a qualified ser- vice technician. See section on changing orifices or following

page.

Alternate Input Ratings, USA ONLY.

BTUH BTUH Natural LP

Standard Alternate Gas Gas

Rating Rating Orifice Orifice 50,000 40,000 #44 #55 75,000 60,000 #44 #55

100,000 80,000 #44 #55 125,000 100,000 #44 #55

SupplyPressure

FIRE HAZARD

Failure to properly set input pressure can result in death, personal injury and/or property damage.

Do NOT set input rating above that shown on rating plate.

Supply pressure can be checked using the 1/8" NPT port on the supply side of the gas valve.

Gas input to burners MUST NOT exceed the rated input shown on rating plate.

Do NOT allow minimum gas supply pressure to vary down- ward. Doing so will decrease input to furnace. Refer to Table 6 for normal gas supply and manifold pressures.

Gas Supply Pressure

Type Recommended Max. Min.

Natural 3.5"

LP 10"

• With Propane gas, the rated input is obtained when the BTU content is 2,500 BTU per cubic foot and manifold

pressure set at 10" W.C.

• If Propane gas has a different BTU content, orifices MUST be changed by licensed Propane installer.

• Measured input can NOT exceed rated input.

• Any major change in gas flow requires changing burn- er orifice size.

7" 14" 4.5"

11" 14" 11"

Important Note:

Manifold Pressure

GasSupplyPressure

Gas supply pressure should be within minimum and maximum values listed on rating plate. Pressures are usually set by gas sup- pliers.

Manifold Gas Pressure Adjustment

NOTE: Make adjustment to manifold pressure with burners oper- ating.

FIRE OR EXPLOSION HAZARD

Failure to turn OFF gas at shut off before connecting manometer can result in death, personal injury and/or

property damage. Turn OFF gas at shut off before connecting manometer.

1. Remove the burner compartment door.

2. With gas OFF, connect manometer to tapped opening on gas valve. Use manometer with a 0 to 15" water column range.

3. Turn gas ON and remove adjustment screw cover on gas valve. Turn counterclockwise to decrease pressure and

clockwise to increase.

4. For altitudes up to 2000', set pressure to value shown in Table 6, ± 0.3" water column.

5. Connect manometer to the tapped opening on the outlet side of gas valve. Use manometer with a 0-15" min. water column range.

6. Turn gas ON, fire the furnace and remove adjustment screw cover on gas valve.

7. Turn counterclockwise to decrease pressure and clock- wise to increase.

8. SetpressuretovalueshowninTable 6. Refertolmportant Notes in Table 6. Pressure is also listed on furnace rating plate.

9. When pressure is set, replace adjustment screw cover on gas valve.

10. Replace the burner compartment door.

E_ 44001111400

MANIFOLDPRESSUREAND ORIFICESIZEFORHIGH ALTITUDEAPPLICATIONS

NATURAL GAS

Heat Value

BtulOu.Ft. 0-1999 2000-2999 3000-3999 4000-4999 5000-5999 6000-6999 7000-7999

ElevationAbove Sea Level

(".wc) (".wc) (" .wc) (".wc) (" .wc) (" .wc) (" .wc)

800 3.5 3.5 3.5 3.5 3.5 3.5 3.5 850 3.5 3.5 3.5 3.5 3.5 3.5 3.5

900 3.5 3.5 3.5 3.5 3.5 3.5 3.4

950 3.5 3.5 3.5 3.5 3.3 3.2 3.1 1000 3.5 3.4 3.3 3.2 3.0 2.9 2.8 1050 3.2 3.1 3.0 2.9 2.7 2.6 2.5

1100 2.9 2.8 2.7 2.6 2.5 2.4 2.3

Orifice Size * #42 Orifice size for 50,000, 75,000 100,00 & 125,000 BTUH models

• #44 Orifice size for 80,000 BTUH model

General Derating Rules

For operation with natural gas at altitudes above 2,000',

orifice change andlor manifold pressure adjustment may be required to suit gas supplied. Check with gas supplier. If

orifice sizing is needed, it should be based on reducing the input rating by 2% (natural) or 4% (LP) for each 1,000'

above sea level. See Table 7 and Figure 28 for required pressure change andlor orifice change for high altitudes.

For operation with LP gas at altitudes above 2,000', gas ori- fices MUST be changed and manifold pressure MUST be maintained as per Table 6. For the 50,000, 75,000, 100,000 and 125,000 BTUH Orifice sizes are #54 for 0-2000' above sea level, #55 for 2000' -7000' above sea level, and #56 for 7000' -8000' above sea level. For the 80,000 BTUH models, the orifice size is #55 for 0 - 4,000' above seal level and #56 for 5,000' - 8,000' above sea lev-

el. Orifices can be ordered through your distributor. (See Figure 28)

Changing Orifices

Measure from face of orifice

NOTE: The derating of these units at 2% (Natural) and 4% (L.P.) has been tested and approved by AGA.

High Altitude Air Pressure Switch

Altitudes over 4,000' require a different air pressure switch than the one installed at the factory. Check parts list for pressure switch and consult your distributor for part number and availability. In Canada, provincial codes may govern installation of switch. Check with governing authorities.

Changing Orifices for HighAltitude

ELECTRICAL SHOCK, FIRE OR EXPLOSION HAZARD

Failure to properly install orifices can result in death, personal injury and/or property damage.

Turn OFF electric power (at disconnect) and gas supply

(at manual valve in gas line) when installing orifices. Installation of orifices requires a qualified service

technician.

NOTE: Main burner orifices can be changed for high altitudes.

1. Disconnect gas line from gas valve.

2. Remove manifold from furnace.

3. Remove the orifices from the manifold and replace them with properly sized orifices.

4. Tighten orifices so it is seated and gas tight. (See Figure 28)

5. Reinstall manifold. Ensure burners do NOT bind on new orifices.

44001 111400 [_

Typical Gas Piping for Upflow

Drip Legand Union,Union* should be outside the Gas (Single Pipe)

cabinet. Manual shut-off valve MUST heupstream of dripleg, union, Manualshut- off

Useelbows and3" pipenippleto connectvalveto pipingwhenusingright side gas pipe entry.

LP Lowpressure switch. Optional

on some models.

nipp

* Union may be installed inside the cabinet when necessary because

valve

25-23-37b

Typical Gas Piping for Downflow

Use elbows and 3" pipe nipple to connect valve's- to piping when using left side gas pipe entry.

Manualshut- off LP Low pressure switch. Optional LP

conversion.

Drip Leg and Union, Union* should

the cabinet. Manual shut-off valve MUST be

upstream of dripleg, union, and furnace.

*Union may be installed inside the cabinet when necessary (Single Pipe) because of clearances.

valve

Gas Pipe Grommet

Natural Gas Input Rating Check

NOTE: The gas meter can be used to measure input to furnace. Rating is based on a natural gas BTU content of 1,000 BTU's per cubic meter. Check with gas supplier for actual BTU content.

1. Make sure burner compartment door is in place before per- forming the following steps.

2. Turn OFF gas supply to all appliances and start furnace.

Natural Gas No.of Seconds | Time PerCubic BTUPer

BTU Content PerHour _ Footin Seconds Hour1,000 3,600 48 75,000

3. Time how many seconds it takes the smallest dial on the gas meter to make one complete revolution. Refer to Ex- ample.

25-23-39

Example

1,000 x 3,600 + 48 = 75,000 BTUH

[_ 44001 111400

4. Relightallappliancesandensureallpilotsareoperating.

NOTE: If meter uses a 2 cubic foot dial, divide results (seconds) by two.

GasPiping Requirements

NOTE: The gas supply line must be installed by a qualified ser- vice technician in accordance with all building codes, (In the state of Massachusetts, gas supply connections MUST be performed by a licensed plumber or gas fitter).

1. Properly size gas pipe to handle combined appliance load or run gas pipe directly from gas meter or LP gas regulator.

Refer to NFGC and ANSI Z223.1 for proper gas pipe size.

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

3. Measure pipe length from gas meter or LP second stage regulator.

NOTE: Refer to Figure 29 or Figure 30 for the general layout at the furnace. The rules listed apply to natural and LP gas pipe

installations.

NOTE: On the Dual Certified or Direct Vent models, install the gas pipe grommet to the furnace side panel with the gas pipe entry. If needed, remove the 2" hole plug and relocate to the open hole in the furnace side panel.

If a flexible connector is required or allowed by

authority having jurisdiction, black iron pipe shall be

installed at gas valve and extended a minimum of 2"

outside furnace casing.

4. Use black iron or steel pipe and fittings or other pipe ap- proved by local code.

NOTE: The use of copper tubing for gas piping is NOT approved by the state of Massachusetts.

5. Use ground joint unions and install a drip leg no less than 3" long to trap dirt and moisture before it can enter gas valve.

6. Use two pipe wrenches when making connections to pre- vent gas valve from turning.

7. Install a manual shut-off valve external to furnace casing and tighten all joints securely.

Additional LP Connection Requirements

1. Have a licensed LP gas dealer make all connections at storage tank and check all connections from tank to fur-

Race.

2. If copper tubing is used, it MUST comply with limitation set in National Fuel Gas Code or CGA codes.

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

FinalCheck

1. The furnace and the gas valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2" PSIG. Close the manual shut-off valve before testing at such pressures.

2. When installation is complete, test all pipe connections for leaks with the gas pressure less than /2' PSIG to the gas

valve.

3. Apply a commercial soap solution to all joints to test for leaks. Correct any leaks indicated by bubbles.

Correct even the smallest leak at once.4,

Check for leaks at gas valve and orifice connections to the burner manifold along with the pilot tube connections to the valve and pilot assembly while the furnace is operating.

1 ,

6. Electrical Wiring

ELECTRICAL SHOCK HAZARD Failure to do so can result in death, personal inju-

ry and/or property damage.

Turn OFF electric 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 SupplyWiring

The furnace MUST be electrically wired and grounded in accor- dance with local codes, or in the absence of local codes with the

latest edition of The National Electric Code, ANSI NFPA 70 and/or The Canadian Electric Code CSA C22.1.

Field wiring connections must be made inside the furnace con- nection box. A suitable strain relief should be used at the point the

wires exit the furnace casing.

Copper conductors must be used. Line voltage wires should be sized for the input amps stated on the rating plate. Furnace should be connected to its own separate circuit.

Thermostat

Thermostat location has an important effect on the operation of the unit. Follow instructions included with thermostat for correct

mounting and wiring. Low voltage connections to furnace must be made on terminal

board to fan control.

44001 111400

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

Optional Equipment

All wiring from furnace to optional equipment MUST conform to local codes or, in the absence of local codes with the latest edition

of The National Electric Code, ANSI NFPA 70 and/or The Cana- dian Electric Code CSA C22.1. Install wiring in accordance with

manufacturer's instructions. The wiring MUST have a minimum temperature rating of 105 ° C.

Humidifier/Electronic Air Cleaner

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

CAUTION

Do NOT exceed 115V/0.8 amp. maximum current load for both the EAC terminal and the HUM terminal combined.

NOTE: The humidifier will be powered when the furnace is fired and the circulating air blower comes on. The electronic air cleaner will be powered anytime the air circulating blower is energized. However, the electronic air cleaner is NOT energized during con- tinuous fan operation controlled by the electronic fan control.

Fan Control

The fan control is preset at the factory with a fixed blower ON delay of 30 seconds in the heating mode. The blower OFF timing is preset at 140 seconds. If desired, the fan OFF delay can be re- set to obtain the longest delay times while still maintaining comfort levels. See "Furnace Wiring Diagram".

Fan Delay DIP Switch Settings

COOLONDELAY:6SEC. COOLOFFDELAY:60 SEC.

HEATON DELAY:30 SEC.

HEAT OFF DELAY

Control Center Fuse

The 24V circuit contains a 5-amp, automotive-type fuse located on fan timer board. (See Figure 32) Any electrical shorts of 24V

wiring during installation, service, or maintenance may cause fuse to blow. If fuse replacement is required, use only a fuse of identical size (5 amp.)

Fan Timer Connections

60SEC 100SEC 140SEC 180SEC

Electrical Connections

NOTE: Junction Box can be mounted to either the left or right

side.

1_5V.aOHL

G_=_nd

[ LowVoltage

; Terl_nn_

25-23-47

_- DIP Switch

FUSE_

¢& 25-23-41

25-23-42

7. Ductwork and Filter

CARBON MONOXIDE POISONING HAZARD

Failure to properly seal duct can result in death, personal injury and/or property damage.

Do NOT draw return air from inside a closet or utility room. Return air duct MUST be sealed to furnace casing.

Installation

NOTE: Design and install air distribution system to comply with

Air Conditioning Contractors of America manuals and/or NFPA pamphlets 90A and 90B or other approved methods that conform to local codes and good trade practices.

1. When furnace supply ducts carry air outside furnace area, seal return air duct to furnace casing and terminate duct outside furnace space.

2. Install air conditioning cooling coil (evaporator) on outlet side of furnace.

3. For furnaces installed without a cooling coil it is recom- mended that the outlet duct be provided with a removable access panel. This panel should be accessible when the furnace is installed so the exterior of the heat exchanger can be viewed for inspections. The access panel MUST be sealed to prevent leaks.

4. If separate evaporator and blower units are used, install good sealing dampers for air flow control. Chilled air going through the furnace could ca use condensation and shorten

the furnace life.

NOTE: Dampers (field supplied) can be either automatic or manual. Manually operated dampers MUST be equipped with a

means to prevent furnace or air conditioning operation unless damper is in the full heat or cool position.

E_ 44001 111400

CARBON MONOXIDE POISONING HAZARD

This could result in death, personal injury and/or

property damage. Cool air passing over heat exchanger can cause

condensate to form resulting in heat exchanger failure.

Connections

NOTE: On upflow installations, return air can enter through either side, both sides, orthe bottom. On horizontal or downflowinstalla-

tions the return air must enter through the knockout opening in the lower panel of the furnace. Return air can not enter through rear

of the furnace. When the furnace is located in an area near or ad-

jacent to the living area, the system should be carefully designed

with returns to minimize noise transmission through the return

grille. Any blower moving a high volume of air will produce audible noise which could be objectionable to when the unit is located very close to living areas. It is advisable to route the return air ducts under the floor or through the attic.

1. Forsideconnectionsusinga16"x25"filter, cutouttheem- bossed area shown in Figure 33. This will provide a 141/2" x 221/2" approximate opening.

i;[ :;; [

Side Return Air C UtO Ut

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

Height of Cutout for 16" x 25" Filter

AB==221/z"141/z"Width of Cutout for 16" x 25" Filter/_

Insulation

1. Insulate ductwork installed in attics or other areas exposed to outside temperatures with a minimum of 2" insulation and vapor barrier.

2. Insulate ductwork in indoor unconditioned areas with a minimum of 1" insulation with indoor type vapor barrier.

Filters

A Filter must be used: Filters are not supplied with these furnaces, but can be purchased

from dealer. Use either filter type:

• Washable, high velocity filters are based on a maximum

air flow rating of 600 FPM.

• Disposable, low velocity filters are based on a maximum

air flow of 300 FPM when used with filter grille.

NOTE: Disposable, low velocity filters may be replaced with washable, high velocity filter providing they meet the minimum size areas. Washable, high velocity filters can be replaced ONLY with same type and size.

Side Mounted Filter Rack

on Side of Furnace

Embossed Area _jmC e

NOTE: Furnaces with 5 TONS cooling rating require two(2) side returns or one side return with bottom return.

2. Bottom returns can be made by removing the knockout panel in the furnace base. Do NOT remove knock-out ex- cept for a bottom return.

3. Installation of locking-type dampers are recommended in all branches, or in individual ducts to balance system's air

flow.

4. Non-combustible, flexible duct connectors are recom- mended for return and supply connections to furnace.

5. 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.

NOTE: To further reduce noise, install acoustical air turning vanes and/or line the inside of duct with acoustical material.

Sizing

Existing or new ductwork MUST be sized to handle the correct amount of airflow for either heating only or heating and air condi- tioning.

25-20-90

Filter Installation using Optional Filter Rack

When installing or removing a bottom mounted filter, slide the two side filter clips to the back of the furnace BEFORE installing or re- moving. This will allow the filter to clear the front raised edge of the furnace. Insert filter into side clips first and push filter back until it is fully engaged into back clip. When filter is in place, slide clips back into place midway on filter as shown in Figure 35.

Bottom Mounted Filter Rack

25-24-18

Slide filter clips towards back before removin_l

Refer to Figure 36 and for guidelines to install filters. Furnaces which require larger filter media and have limited clearances on

44001 111400

onesideoffurnace,requireastandofffilterrack,seeFigure36, availablefromyourdistributor.

StandoffFilterRack

HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH

Using Optional /_/_

Standoff FilterRack _ /

_/ I _"_

25-21-45a

Downflow Furnace Installation

Non- Combustible Floor Installation

Fabricate a plenum to the dimensions given in Table 8, for the fur- nace outlet. Plenum should be flanged, approximately 3/4" for

support. Note: The three(3) screws in the top panel of the furnace next to

the duct flange MUST be removed to provide serviceability of the primary heat exchangers in the downflow installation

1. Position plenum through the floor and 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.

Combustible Floor Installation

FIRE HAZARD

Failure to install unit on noncombustible subbase can

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

Place furnace on noncombustible subbase on downflow applications, unless installing on non-com-

bustible flooring.

;ubbase for Combustible Floor

CAUTION

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

When a refrigeration coil is used in conjunction with this unit, it must be installed on the discharge side of the unit to avoid con- densation on the heat exchanger. The coil installation instructions must be consulted for proper coil location and installation proce- dures. With a parallel flow arrangement, dampers must be installed to prevent chilled air from entering the furnace. If manu- ally 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.

A 3" clearance is required on the right side of the furnace in order to run the condensate drain line. Copper, iron or plastic tubing

may be used for the condensate drain line.

NOTE: The three(3) screws in the top panel of the furnace next to the duct flange MUST be removed to provide serviceability of the primary heat exchangers in the downflow installation

Note: When using the subbase for combustible floors, the dis- charge 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 restric- tions may occur.

The Subbase for Combustible Floors MUST be used when a downflow furnace is set on a combustible floor, even when the fur-

nace is installed on a coil box.

1. Cut the opening in the floor according to Table 8. The hole in the floor must be cut to the dimensions listed in Table 8

since the base is equipped with locating tabs that center the base over the opening.

The opening in the base is 11/4" shorter and 11/8" narrower than the recommended size of the opening in the floor. This is done to maintain clearance between the floor and the plenum.

2. Fabricate the plenum to the dimensions given in Table 8. Note that the dimensions given are outside dimensions.

E_ 44001 111400

ubbases,orCombus.bleF,oorsD,mens,ons

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

Subbase for Combustible

Floors Part Number

Furnace Subbase

NAHHOOISB NAHHOO2SB

NAHHOO3SB NAHHOIOSB

Subbase for Coil Cabinets

NAHHOO4SB NAHHOO5SB NAHHOO6SB

NAHHOO9SB

Outside Dimension

_ Base Spacer Side To Side

Set the base over the opening in the floor, centering it over the opening. Fasten the base to the floor with screws or nails. See Figure 37, Figure 38 and Figure 39.

Subbase for Combustible

Floor Dimensions

1511/16

195/16 225/16

24J/4

15]]/16

195/16

24]]/16

J_ K**

283/4 149/16 16 283/4 183/16 16 283/4 2113/16 16

28J/4 23u/16 16]/4

20u/16 14u/16 16]/4 209/16 183/16 161/4

209/16 2113/16 161/4 20u/16 23u/16 16

Opening In Floor

M N

161/4 145/8 16114 18114 161/4 21 t/8

161/4 23b/8

161/4 145/8 161/4 181/4

161/4 21 t/8 161/4 23_/8

Opening In Base

For Plenum

P R

15 131/2 15 171/8 15 193/4

15 221/2

15 13]/2 15 171/8

15 193/4 15 22]/2

Coil Cabinet Subbase

Typical Plenum

Dimensions

S T

15 131/2 15 171/8 15 193/4

15 221/2

15 131/2 15 171/8

15 193/4 15 221/2

Furnace Subbase

Plenum

Combustible

Floor Base

A - 4 1/4" Minimum clearance from back of hole to wall or other obstruction.

Drop the plenum through the opening in the base. The

flange of the plenum should rest on top of the subbase.

Position furnace or coil cabinet and furnace on subbase so it aligns between the locating tabs.

25-20-46

Plenum

Combustible

FloorBase

Wood c o;

This subbase for combustible floors has been designed so that the height of the subbase raises the downflow coil off the floor to

allow easy installation of the condensate drain. See Figure 40.

44001 111400 [_

Condensate Line Raised by Base

8. Checks and Adjustments

25-20-52

Startup

NOTE: Refer to the start-up procedures in the "User's Informa- tion Manual' or to the "Operating Instructions Label' on the fur-

nace.

CAUTION

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

obstruction to blower.

GasSupplyPressure

Gas supply pressure should be within minimum and maximum values listed on rating plate. Pressures a re usually set by gas sup-

pliers.

Manifold Gas Pressure Adjustment

NOTE: Make adjustment to manifold pressure with burners oper- ating.

FIRE OR EXPLOSION HAZARD Failure to turn OFF gas at shut off before connecting

manometer can result in death, personal injury and/or property damage.

Turn OFF gas at shut off before connecting manometer.

Pilot Burner

10-11-65

Main BurnerFlameCheck

Allow the furnace to run approximately 10 minutes then inspect the main burner and pilot flames. See Figure 42.

Check for the following (Figure 42):

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

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

• Flames extending directly from burner into heat ex-

changer.

• Flames do NOT touch sides of heat exchanger.

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

1. Remove the burner compartment door.

Main Burner

2. With gas OFF, connect manometer to tapped opening on gas valve. Use manometer with a 0 to 15" water column

range.

3. Turn gas ON and remove adjustment screw cover on gas valve. Turn counterclockwise to decrease pressure and

clockwise to increase.

4. For altitudes up to 2000', set pressure to value shown in Table 6, 0.3 (8mm) water column. For altitudes of 2000'

to 8000', see Section 5 for correct pressure setting.

10-10-78

Adjust Pilot Burner

The furnace has a pilot flame to light the main burner. The flame should surround 3/8" to 1/2" of the flame sensor. See Figure 41. To adjust, remove cap from pilot adjusting screw on gas valve. Turn

screw counterclockwise to increase or clockwise to decrease flame as re uired. Re lace adhJstin screw ca . tures.

E_ 44001 111400

Temperature Rise Check

The blower speed MUST be set to give the correct air temperature rise through the furnace as marked on the rating plate. Tempera- ture rise is the difference between supply and return air tempera-

Tochecktemperaturerise,usethefollowingprocedure:

1. Placethermometersinsupplyandreturnairregistersas closetofurnaceaspossible,avoidingdirectradiantheat fromheatexchangers.

2. Operatefurnacecontinuouslyfor15minuteswithallregis- tersandductdampersopen.

3. Takereadingandcomparewithrangespecifiedonrating plate.

4. IfthecorrectamountoftemperatureriseisNOTobtained,it maybenecessarytochangeblowerspeed.Ahigherblow- erspeedwilllowerthetemperaturerise.Alowerblower speedwillincreasethetemperaturerise.

Changing Blower Speed

ELECTRICAL SHOCK HAZARD Failure to do so can result in death and/or personal

injury.

Turn OFF power to furnace before changing speed taps.

NOTE: The speed taps that the manufacturer sets from the facto- ry for this product are based on a nominal 400 CFM per ton cool- ing and the basic mid range on the temperature rise for heating.

Since the manufacturer cannot establish the static pressure that

will be applied to the unit, it is the responsibility of the installer

dealer/contractor to select the proper speed taps for the applica- tion when the unit is installed.

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

1. Refer to Furnace WiringDiagramfor 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 the chart (Table 9) to determine the blower motor

speed settings.

i;iiii ii ii ii ii ii ii ii ii ii ii ii ii ii ii ii ii ii

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

_iiiii:! Blower Speed Chart

Wire Color

Black

Orange*

Blue

Red

Motor Speed

High

Med-High

Medium

Low

Change the heat or cool blower motor speed by removing the motor lead from the "Heat" or "Cool" terminal and re-

place it with the desired motor speed lead from the "Un- used Motor Lead" location. Connect the wire previously

removed from the "Heat" or "Cool" terminal to the vacated "Unused Motor Lead" terminal.

If the same speed must be used for both heating and cool- ing, remove the undesired motor speed lead from the "Heat" or"Cool" terminal and connect that lead to the open terminal at "Unused Motor Lead" location. Attach a jump-

er between the "Heat" and "Cool" terminals and the re- maining motor speed lead.

Note: For motors with (4) speed leads, it will be necessary to tape off the terminal of the motor speed lead removed from the "Heat" or "Cool" terminal with electrical tape since an open terminal will not be available at the "Unused Mo-

tor Lead" location.

Continuous Fan Operation

A terminal is provided on the electronic fan control located in the circulating blower compartment for operation of the continuous fan option. This connection is intended for the low speed motor tap, 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 proper operation of the circulating air blower in all modes of opera-

tion.

Separate speed selections for Heat, Cool, and

Continuous Fan

Connect low speed lead from circulating motor to the "Cont." ter- minal at the electronic fan control. The appropriate motor leads should already be connected to the "Heat" and "Cool" terminals.

HeatingandContinuousBlowerSpeedthe Same

If it is necessary to operate the heating speed and continuous blower speed using the same blower speed, connect ajumper be-

tween the "Heat" and "Cont." terminals on the electronic fan con- trol.

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

9. Furnace Maintenance

CAUTION

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

44001 111400 [_

See "User "s Information Manual" and the "Service Manual".

10. Sequence of Operation & Diagnostics

The following is the normal operating sequence for the control system.

Cooling (¥) Request:

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

• Cool motor speed energized after 6 second Cool Fan On Delay time. Y & G signals removed from EFT.

• Cool motor speed de-energized after 60 second Cool Fan Off Delay time.

Circulating Fan (G) Request:

24 VAC signals applied to G terminals of EFT control.

• Heat motor speed energized without delay. G signal removed from EFT.

• Heat motor speed de-energized without delay.

Heating (W) Request:

24 VAC signals applied to W terminal of EFT control.

• Inducer motor turns on.

• The gas valve solenoid energizes.

• Following a 3 second prepurge delay, the pilot valve opens and the ignitor begins to warm up.

• After the pilot lights, the main burners energize and light.

• Timed from the opening of the main gas valve, the control will delay 30 seconds before switching the fan to Heat speed.

W signal removed from EFT.

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

• The inducer runs at its present speed for a 30 second postpurge period.

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

Heating Request with Gas Supply Line Shut Off:

24 VAC signals applied to W terminal of EFT control.

• Inducer motor turns on.

• The gas valve solenoid energizes.

• Following a 3 second prepurge delay, the pilot valve opens and the ignitor begins to warm up.

• The ignitor 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.

Gas Valve Diagnostic Codes (See Figure 43)

OFF = Control not powered Heartbeat = Normal Operation (Standby or call for heat)

1 Flash = Not used 2 Flashes = Pressure switch closed when should be open

3 Flashes = Pressure switch circuit was still sensed as open 30 seconds 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 call 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 = Soft Lockout -Maximum recycle count exceeded - Last failure was Flame Sense Lost During Run 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 Taking Longer 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. NOTE 1: The 6 + X designation indicates a combination of flash codes: 6 flashes shows the control is in soft lockout, followed by X flashes

[_ 44001 111400

to indicate the reason the control went into soft lockout. When the 6+ X code is flashing, the SV9541 will attempt a new ignition sequence after a five minute delay period, if the call for heat is still present. Reset of the thermostat will initiate a new ignition sequence immediately.

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 Sense Failure During Run, Airflow Proving Circuit Open During Run, or Limit Circuit Open During Run. The flash code will indicate which

was the last 'abnormal' event that put the system into the soft lockout state based on the table above.

Typical Gas Valve Honeywell

Pilot Pressure

Adjustment

On\Off

Switch

Diagnostic Light

OUTLET

INLET

Manifold Pressure Adjustment

dwg 25-23-31a

44001 111400 [_

HONEYWELL SV9541M "SMART VALVE" Sequence of Operation

IPOWERAPPLIEDTO APPLIANCE

I THERMOSTATCALLS FORHEAT

IPRESSURE SWITCHES PROVED OPEN?

ICOMBUSTIONBLOWER ENERGIZED

WAIT FORPRESSURESWITCHESTOOPEN

PRESSURESWITCHESCLOSEDWITHIN30 SEC-

ONDS?

_._ COMBUSTIONBLOWERDE-ENERGIZED

I 3SECONDPRE-PURGE

PILOTVALVEOPENS: IGNITORPOWERED(1)

PILOTLIGHTSAND FLAME ISSENSED l'_Vl DURING 90 SECOND TRAILFOR

IGNITION?

I YES

MAINVALVEOPENS, HEATINGFAN"ON" DELAYBEGINS

IAFTERDELAY:CIRCULATINGBLOWERSTARTS I

FLAME SENSE LOST? I I

FAILURERECYCLEDELAY

THREESECONDFLAME ,J_

PILOTVALVE CLOSES; PILOTIGNITOROFF

YES

PILOTAND MAINVALVECLOSE 1

J__ FIVEMINUTEWAITPERIOD

CIRCULATINGBLOWEROFF AFTER DELAY

THERMOSTATCALL FORHEAT ENDS

PILOTAND MAINVALVECLOSE

COMBUSTIONBLOWER DE- ENERGIZEDAFTER30

SECONDPOST PURGE

ICIRCULATINGBLOWEROFFAFTER DELAY

I WAITFOR NEXTCALL FORHEAT

[_ 44001 111400

L FLAMESENSELOST MORETHAN FIVETIMESIN THIS CALL FORHEAT?

YES

(1) Ignitor "ON" for first 30 seconds of trial for ignition, then "OFF" for next 30 seconds. If the pilot has not lit, it turns back "ON" for the final 30 seconds. The pilot valve remains energized during the entire 90 second trial for ignition.

NOTE: If main limit string opens and takes longer than 2 minutes to close, system goes into I hour wait

period.

COMBUSTIONAIRBLOWEROFF AFTERPOST PURGE

HONEYWELL SV9541M "SMART VALVE" Trouble shooting

The 6 + X designation indicates a combination of flash codes: 6 flashes shows the control is in soft lockout, followed by X flashes to indicate the reason the control went into soft lockout. Last status code indicates repair to address first

LED

STATUS

Off No power to system control. Low voltage (24V) power at 24 VAC and COM terminals on ST9160B

Heartbeat Normal indication whenever the system is powered, unless some Bright - Dim abnormal event has occurred. Net Applicable - Normal Operation (stand by or call for heat)

2 Flashes (i.e. when call for heat begins), open).

3 Flashes

4 Flashes

5 Flashes

6 Flashes+

1Flash

INDICATES CHECK/REPAIR

Line voltageinput at L1 and Neutral connectors on ST9160B FanTimer.

System wiring harness is in good condition and securely connected.

Pressure switches closed when it should be open Pressure switches stuck closed (system will wait for pressure switch to

(Combustion blower is not energized until pressure switches

opens) Pressure switches miswired erjumpered.

Pressure switches, openwhen they should be closed (i.e.longer

than 30 seconds after combustion blower/inducer is energized).

System goes into 5-minute delay period, with combustion blower/ inducer off. Atend ofthe 5-minute delay, another cycle will begin.

Main Limit or Roll Out Switch is open.

Combustion blower is energized, Circulating blower is energized heat speed.

Flame signal sensed out of proper sequence. Combustion blower is energized, Circulating blower is energized

heat speed after the "ON" delay. Soft Lockout.

Failed to light pilot during 90 sec. trial for ignition

Combustion air blower is de-energized, Circulating blower isde- energized after the "OFF" delay.

After 5-minute delay time, control system will reset and initiate a

new ignition sequence,

Ignition system control switch must be in the ON position. Pressure switches operation, tubing, and wiring.

Restrictions in furnace air intake or vent piping.

Main limit switch. Manual reset burner rellout switch.

Limit and rellout switch wiring is ingood condition and securely

connected.

Flame at pilot burner.

Gas supply off or pressure too low or high for appliance to operate. Damaged or broken HIS element

Line voltage HOT leadwire not connected to L1 terminal on ST9160B. Furnace not properly earth grounded.

Flame sense rod contaminated or in incorrect position. Pilot burner located in incorrect position.

Pilot burner lead wires are in good condition and popery connected. Pressure switches operation, tubing, and wiring.

SoftLockout.

Gas supply off orpressure too low or high for appliance to operate. Line voltage HOT leadwire not connected to L1 terminal on ST9160B.

Furnace not properly earth grounded. Flame sense rod contaminated or in incorrect position.

Pilot burner located in incorrect position. Pilot burner lead wires are in good condition and properly connected.

Cycling, pressure switch Condensate drain blocked

Pressure switches operation, tubing, and wiring.

6 Flashes+ 2 Flashes

Last failure was Flame Sense lost during run.

Maximum recycle count exceeded

Combustion air blower is de-energized, Circulating blower is

de-energized after the "OFF" delay.

After 5-minute delay time, control system will reset and initiate a

new ignition sequence,

44001 1114O0 [_

HONEYWELL SV9541M "SMART VALVE" Trouble shooting continued

LED

STATUS

6 Flashes+ 3 Flashes

INDICATES CHECK/REPAIR

Soft Lockout.

Last failure was pressure switch

Ignition system control switch must be in the ON position.

Maximum recycle count exceeded

Combustion air blower is de-energized, Circulating blower isde- energized after the "OFF" delay.

After 5-minute delay time, control system will reset and initiate a

new ignition sequence, Soft Lockout.

Pressure switches operation, tubing, and wiring. Restrictions in furnace air intake or vent piping.

High winds blowing against vent.

Last failure was limit circuit opened during run.

6 Flashes+ 4 Flashes

Combustion air blower is de-energized, Circulating blower is

de-energized after the "OFF" delay.

After 5-minute delay time, control system will reset and initiate a

new ignition sequence, Soft Lockout.

Blowerfailure(typical)

7Flashes

Limittriptooklongerthan2 minutestoreset.

System will start a new ignition sequence after 1 hour, if call for heat still present.

11. Concentric Termination

Vent Termination Clearances

CARBON MONOXIDE POISONING, FIRE AND EXPLO- SION HAZARD

Failure to properly vent this furnace can result in

death, personal injury and/or property damage. Inlet and outlet pipes may NOT be vented directly

above each other (standard vent terminals).

1. Determine termination locations based on clearances spe- cified in following steps and as shown in Figure 7, Figure 44 through Figure 49.

2. The vent termination must be located at least 12" above ground or normally expected snow accumulation levels.

3. Do NOT terminate over public walkways. Avoid areas where condensate may cause problems such as above planters, patios, or adjacent to windows where steam may cause fogging.

Main limit switch. Limit and rollout switch wiring is ingood condition and securely

connected.

Restriction in duct work. Dirty filter

Deadblower. Blockedductwork.

4. The vent termination shall be located at least 4' horizontally from any electric meter, gas meter, gas regulator, and any relief equipment. These distances apply ONLY to U.S.

installations.

5. The vent termination is to be located at least 3' above any forced air inlet located within 10' ; and at least 10' from a

combustion air intake of another appliance, except another direct vent furnace intake.

6. In Canada, the Canadian Fuel Gas Code takes prece- dence over the preceding termination instructions.

Concentric Vent Termination - Kit #

NAHA001CV& NAHA002CV

These kits are for vertical or horizontal termination of the combus- tion air inlet and the exhaust vent pipes on Category IV gas-fired

condensing furnaces. The NAHAO01CV kit can be used for 3" di- ameter pipe systems. The NAHAOO2CV kit can be used for 2" diameter pipe system. Refer to Table 10 for the correct pipe size

for the furnace. Both the combustion air inlet and the exhaust vent pipes must attach to the termination kit. The termination kit must

terminate outside the structure and must be installed per the instructions outlined below for vertical or horizontal termination.

[_ 44001 111400

Verticalterminationispreferred.Fieldsuppliedpipeandfittings arerequiredtocompletetheinstallation.

Kit Components

Kit Contents:

3" Rain Cap or 2" Rain Cap 3;;DiameterSDR-26 Pipe,191/2;;Long or

4 DiameterSDR-26 Pipe,371/8, Long, 2 DiameterSDR-26 Pipe,315/8 Long or

21/2"DiameterSDR-26 Pipe,24" Long, 3" Y Concentric Fittingor 2" Y ConcentricFitting

3"or4"Dia. SDR-26Pipe

13/16"

{t :::i ;{i {}}i{

Concentric Vent Dimensional

Drawing

BPVC

\Ven haustI

11/2"

25-22-03

2" or3" Dia. 2 or 21/2"Dia. ¥ ConcentricFitting SDR-26Pipe

2"or3" Dia. RainCap

25-22-03

Vertical & Horizontal Termination

1. Determine the pipe diameters required for the installation from Table 10 and Table 11 and Figure 46.

2. Determine the best location for the termination kit. See Figure45 for vertical termination or Figure 45 and

Figure 49 for horizontal termination. Roof termination is preferred since it is less susceptible to damage, has re- duced intake contaminants and less visible vent vapor. For side wall termination, consideration should be given to: 1) possible damage from the vapors to plants/shrubs, other equipment and building materials, 2) possible damage to the terminal from foreign objects, 3) wind effects that may cause recirculation of flue products, debris or light snow and 4) visible vent vapor.

3. Cut one 5" diameter hole through the structure for the NAHA001CV Kit or one 4" diameter hole for the

NAHA002CV Kit.

4. Dimension D may be lengthened to 60" max. or shortened by cutting the pipes to 12" min. Dimension A will change ac- cording to D dimension. (See Figure 46)

Concentric Vent Roof Installation

Vent /_ Maintain12"min.clearanceabove

highestanticipatedsnowlevel.Max. of24"aboveroof.

Combustion Air

Roof Boot/

Flashing

Model A* B C D** NAHAO01CV 38z/8 3 41/2 211/8 NAHAOO2CV 33s/8 2 31/2 16//8

= Dimension will change accordingly as dimension D is

lengthened or shortened.

_ = Dimension D may be lengthened to 60" may also be

shortened by cutting the pipes provided in the kit to 12" minimum

i ' ;: ; Concentric Termination Kit

_bI_ 0 , NAHA001CV & NAHA002CV Venting

Table for *9MPD Models

50,000, 75,000 & 80,000 Btuh Furnaces

NAHAOO2CV - 35' & (4) 90° elbows with 2" PVC pipe or NAHAOOICV - 65' & (4) 90° elbows with 3" PVC pipe

100,000 Btuh Furnace

NAHAOOICV - 35' & (4) 90° elbows with 3" PVC pipe or NAHAOOICV - 65' & (4) 90° elbows with 3" PVC pipe &

Long Vent Kit (See Tech. Manual)

125,000 Btuh Furnace

NAHAOOICV - 35' & (4) 90 ° elbows with 3" PVC pipe

1. Do not include the field supplied 45 ° elbow in the total elbow count,

2. If more than four elbows are required, reduce the length of both the inlet and the exhaust pipes five feet for each

additional elbow used.

3, Elbows are DWV long radius type for 2" and 3" vents,

NOTE: Feet of pipe is whichever pipe run is the longest, either inlet or outlet side,

Support (Field Supplied)

(Field Supplied)

Vent

Combustion

Air 25-22-02

Note: SUDDort must be field installed to secure termination kit to structure.

44001 111400 [_

Concentric Termination Kit

NAHA001CV & NAHA002CV Venting

.... Table for N9MP2 Models

50,000 & 80,000 Btuh Furnaces

NAHA002CV - 35' & (4) 90° elbows with 2" PVC pipe or NAHA001CV - 65' & (4) 90° elbows with 3" PVC pipe

75,000 Btuh Furnaces

NAHA002CV - 20' & (2) 90° elbows with 2" PVC pipe or NAHA002CV - 35' & (4) 90° elbows with 2" PVC pipe &

Long Vent Kit (See Tech. Manual) or NAHA001CV - 65' & (4) 90° elbows with 3" PVC pipe

100,000 Btuh Furnace

NAHA001CV - 35' & (4) 90° elbows with 3" PVC pipe or NAHA001CV - 65' & (4) 90° elbows with 3" PVC pipe & Long Vent Kit (See Tech. Manual)

125,000 Btuh Furnace

NAHA001CV - 35' & (4) 90° elbows with 3" PVC pipe

1. Do not include the field supplied 45° elbow in the total elbow count,

2. If more than four elbows are required, reduce the length of both the inlet and the exhaust pipes five feet for each

additional elbow used.

3. Elbows are DWV long radius type for 2" and 3" vents,

NOTE: Feet of pipe is whichever pipe run is the longest, either inlet or outlet side,

If assembly needs to be extended to meet height or side wall thickness requirement, the two pipes supplied in the kit may be

replaced by using the same diameter solid, single (no coupling connections) field supplied SDR-26 PVC (ASTM D2241) pipes.

Do not extend dimension D more than 60". (See Figure 46) Do not use field supplied couplings to extend the pipes.

Airflow restriction will occur and the furnace pressure switch may cause intermittent operation.

Partially assemble the concentric vent termination kit. Clean and cement the parts using the procedures for Join- ing Pipe and Fittings section of the manual. A) Cement the Y Concentric fitting to the 4" diameter kit pipe. (See

Figure 47) B) Cement the 3" rain cap to the 21/2 " diameter kit part. (See Figure 47) NOTE: A field supplied stainless

steel screw may be used to secure the rain cap to the pipe instead of cementing when field disassembly is desired for cleaning (See Figure 47)

CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in death, personal injury and/or property damage.

When using the alternate screw assembly method, drill a

clearance hole in the rain cap and a pilot hole in the vent pipe for the screw size being used. Failure to drill

adequate holes may cause cracking of the PVC components, allowing flue gases to be recirculated.

CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in death, personal injury and/or property damage.

Do not operate the furnace with the rain cap removed as recirulation of the flue gases may occur. Water may also

collect inside the larger combustion air pipe and flow to the burner enclosure.

Install the Y concentric fitting and the pipe assembly through the structure's hole. For vertical termination, install the parts through the field supplied roof boot/flashing.

NOTE: Do not allow insulation or other materials to accu- mulate inside the pipe assembly when installing through

the structure's hole. Secure the assembly to the structure as shown in

Figure 45 or Figure 49 using field supplied metal strap- ping or equivalent material.

NOTE: Ensure the termination height is above the roof sur- face or anticipated snow level as shown in Figure 45 for

vertical termination. Ensure the termination location clear- ance dimensions are as shown in Figure 48 and Figure 49

for horizontal termination.

Concentric Vent and Combustion- Air Side Termination

Roof Overhang

Rain Cap to Vent Pipe Assembly

Drill clearance hole in rain

cap and pilot hole in vent pipe.

Maintain 12" clearance above highest antici-

Stainless steel screw (Field supplied)

[_ 44001111400

pated snow level or grade whichever is great- er. 25-22-02

Concentric Vent Sidewall Attachment

Strap

(Field Supplied) _,_////_ Combustion

\ Air

Vent

Combustion _ _ _///,//_

Air 45° Elbow _/////_

Note:

Securing strap mustbefieldinstalledtoprevent movementofterminationkitinsidewall.

(Field Supplied) 25-22-02

8. Install the rain cap and the small diameter pipe assembly in

the Y concentric fitting and the large pipe assembly. Ensure that the small diameter pipe is bottomed out and securely

cemented in the Y concentric fitting.

9. Cement the furnace combustion air and vent pipes to the concentric vent termination assembly. See Figure 45 or Figure 49 for proper pipe attachment.

10. Operate the furnace through one heat cycle to ensure com- bustion air and vent pipes are properly connected to the

concentric termination connections.

44001 1114O0 [_

[_ 440011114O0

Four Position Furnace

Models

Single Pipe

N9MP1050B12A4 N9MP1075B12A4

N9MP1080F16A4 N9MP1100F14A4

N9MP1100J 20A4 N9MP1125 J20A4

Two Pipe

N9MP2050B12A4

N9MP2075B12A4

N9MP2080F16A4

N9MP2100F14A4 N9MP2100J20A4

N9MP2125J20A4

Dual Certified

*9MPD050F12A4 *9MPD075F12A4

*9M PD080J 16A4

25-23-30

*9MPD100J14A4 *9MPD100J20A4

*9MPD125L20A4

_Denotes Brand

Manufactured by:

International Comfort Products Corporation (USA) Lewisburg, TN USA 37097

Save This Manual For Future Reference

44001 111400 [_

ManufacturersNumber (Mfr No -See Rating Plate) ALL Models

Specifications (N9MP1)

NgMP1050B12A N9MP1075B12A

General

GasType Nat./LP Nat./LP Nat./LP Nat./LP Input(Btuh) 80,000 100,000 100,000 125,000 Output(Btuh) 72,000 91,000 96,500 113,750

Transformer Size (VA) 40 40 40 40 T'stat HeatAnticipator .10 .10 .10 .10

Temp.Rise(F) 35-65 40-70 40-70 40-70

Electrical(Volts/Hz/FLA) 11516019.0 115/60/9.0 115/60110.5 115/60/11.2 Gas& Ignition

GasType Nat. L.P. Nat. L.E Nat. LP. Nat. L.E GasValve HWSV9541M HWSV9541M HW SV9541M HWSV9541M

RegulationType SNAP SNAP SNAP SNAP IgnitionTypeISeries HWHSP HWHSP HW HSP HWHSP

ManifoldPress.(Inch'sWC) 3.5 I0.0 3.5 I0.0 3.5 10.0 3.5 I0.0 Std.MainOrifices (NoISize) 4144 4155 4146 4154 4142 4154 5142 5154 PilotOrificeSize .018 .011 .018 .011 .018 .011 .018 .011

Nat./LP Nat./LP

50,000 75,000 45,500 68,000

40 40 .10 .10

35-65 40-70

11516019.8 11516018.9

Nat. L.P. Nat. LE

HWSV9541M HWSVg541M

SNAP SNAP

HWHSP HWHSP

3.5 10.0 3.5 10.0

2142 2154 3142 3154

.018 .011 .018 .011

FanControls FanControl(Type) HWST9160 HWST9160 HW ST9160 HWST9160

FanControl On 30 30 30 30 (Timed-secs) Off 60,100,140,180 60,100,140,180 60,100,140,180 60,100,140,180

HWST9160 HWST9160

30 30

60,100,140,180 60,100,140,180

Combustion

Flue Outlet Size (Inches) 2 3 3 3 Std. Outlet Temp (°5' No Elbows) <140 <140 <140 <140

2 2

<140 <140

BlowerPressure 5' No Elbows (" WC)

BlowerPressure40' +5-90 ° DWV Elbows (" WC) Transition Bx Pressure 5' No Elbows (" WC) TransitionBx Pressure 40' +5-90 ° DWV Elbows (" WC)

Limits & Controls

Rollout Switch (F)

Limit Control Setting (F)

Standard Pressure Sw. (Part No)

Blower Switch Pressure (Close) (" WC)

Blower Switch Pressure (Open) (" WC) Transition Switch Pressure (Close) (" WC) Transition Switch Pressure (Open) (" WC)

High Altitude Pressure Sw. (Part No)

Blower Switch Pressure (Close) (" WC)

Blower Switch Pressure (Open) (" WC) Transition Switch Pressure (Close) (" WC)

Transition Switch Pressure (Open) (" WC)

-2.6 -2.6

-2.3 -2.3

300 300 240 210

1013802 1013802

-2.2 -2.2

-2.0 -2.0

1013803 1013803

-2.0 -2.0

-1.8 -1.8

Long Vent Kit (Part No) Pressure Switch (Part No)

Blower Switch Pressure (Close) (" WC)

Blower Switch Pressure (Open) (" WC) Transition Switch Pressure (Close) (" WC) Transition Switch Pressure (Open) (" WC)

High Altitude Long Vent Kit (Part No) Pressure Switch (Part No)

Blower Switch Pressure (Close) (" WC)

Blower Switch Pressure (Open) (" WC) Transition Switch Pressure (Close) (" WC) Transition Switch Pressure (Open) (" WC)

Blower Data

Type& Size

MotorAmpsIRpm MotorTypelH.p.

Cap.MfdNolts FilterType&Size (Permanent- notsupplied) CoolCap. (Tons)@ .5" W.C. L, ML,MHi& Hi

11-8 11-8

10/850 8.0/1050

PSC/1/2 PSC/112

7.51370 7.51370

16x25x1 16x25x1

1112,2,21/2,3 11/2,2,2112,3

GasConversion Kits Natto LP

LPto Nat

NAHF002LP(*1009509)

NAHF002NG(*1009510)

_Order from Service Parts

N9MP1080F16A N9MP1100F14A NgMP110OJ20A N9MP1125J20A

-2.6

-2.5

300 230

1013811

-1.8

-1.7

-2.6

-2.5

300 230

1013801

-1.8

-1.7

-2.6

-2.5

300

220

1013802

-1.8

-1.7

-2.6

-2.5

300 190

1013166

-1.3

-1.1

-1.8

-1.6

1013812

-2.3

-2.1

1013803

-2.2

-2.0

1013803

-1.8

-1.6

1013157

-0.9

-0.7

-1.5

-1.3

-2.0

-1.8

NAHAO01LV

1013518

-1.0

-0.8

-2.0

-1.8

-2.0

-1.8

NAHA002LV

1013515

-1.0

-0.8

-1.7

-1.5

-1.7

-1.5

NAHA003LV

1013165

-0.7

-0.6

-1.4

-1.2

11-10

10/1050

PSC/112

101370

16x25x1

21/2,3,3112,4

NAHF003LP

C1013815)

11-10

10/1050 PSC/1/2

10/370

16x25x1

1112,2,3,3112,

11-10

131900

PSC/314

40/370

16x25x1

31/2,4,4112,5

NAHF002LP(*1009509)

NAHF002NG(*1009510)

11-10

13/900

PSC/314

40/370

16x25x1

31/2,4,4112,5

NAHF003NG

C1013816)

44001 111400

Manufacturers Number (Mfr No -See Rating Plate) ALL Models

Specifications (N9MP2)

N9MP2050B12A N9MP2075B12A

General

GasType Nat./LP Nat./LP Nat./LP Nat./LP Input(Btuh) 80,000 100,000 100,000 125,000 Output(Btuh) 72,000 91,000 96,500 113,750

Transformer Size (VA) 40 40 40 40 T'stat HeatAnticipator .10 .10 .10 .10

Temp.Rise(F) 35-65 40-70 40-70 40-70

Electrical(Volts/Hz/FLA) 115/6019.0 115/60/9.0 115/60110.5 115/60/11.2 Gas& Ignition

GasType Nat. L.P. Nat. L.E Nat. LP. Nat. L.E GasValve HWSV9541M HWSV9541M HW SV9541M HWSV9541M

RegulationType SNAP SNAP SNAP SNAP IgnitionTypelSeries HWHSP HWHSP HWHSP HWHSP

ManifoldPress.(Inch'sWC) 3.5 I0.0 3.5 I0.0 3.5 10.0 3.5 I0.0 Std.MainOrifices (NolSize) 4144 4155 4142 4154 4142 4154 5142 5154 PilotOrificeSize .018 .011 .018 .011 .018 .011 .018 .011

Nat./LP Nat./LP

50,000 75,000 45,500 68,000

40 40 .10 .10

35-65 40-70

11516019.8 11516018.9

Nat. L.P. Nat. LE

HWSV9541M HWSVg541M

SNAP SNAP

HWHSP HWHSP

3.5 10.0 3.5 10.0

2142 2154 3142 3154

.018 .011 .018 .011

FanControls FanControl(Type) HWST9160 HWST9160 HW ST9160 HWST9160

FanControl On 30 30 30 30 (Timed-secs) Off 60,100,140,180 60,100,140,180 60,100,140,180 60,100,140,180

HWST9160 HWST9160

30 30

60,100,140,180 60,100,140,180

Combustion

Flue Outlet Size (Inches) 2 3 3 3 Std. Outlet Temp (°5' No Elbows) <140 <140 <140 <140

BlowerPressure 5' No Elbows (" WC) BlowerPressure40' +5-90 ° DWV Elbows (" WC)

Transition Bx Pressure 5' No Elbows (" WC) TransitionBx Pressure40' +5-90 ° DWV Elbows (" WC)

Limits & Controls Rollout Switch (F)

Limit Control Setting (F)

Standard Pressure Sw. (Part No)

Blower Switch Pressure (Close) (" WC)

Blower Switch Pressure (Open) (" WC) Transition Switch Pressure (Close) (" WC) Transition Switch Pressure (Open) (" WC)

High Altitude Pressure Sw. (Part No)

Blower Switch Pressure (Close) (" WC)

Blower Switch Pressure (Open) (" WC) Transition Switch Pressure (Close) (" WC)

Transition Switch Pressure (Open) (" WC)

Long Vent Kit (Part No) Pressure Switch (Part No)

Blower Switch Pressure (Close) (" WC)

Blower Switch Pressure (Open) (" WC) Transition Switch Pressure (Close) (" WC) Transition Switch Pressure (Open) (" WC)

High Altitude Long Vent Kit (Part No) Pressure Switch (Part No)

Blower Switch Pressure (Close) (" WC)

Blower Switch Pressure (Open) (" WC) Transition Switch Pressure (Close) (" WC) Transition Switch Pressure (Open) (" WC)

2 2

<140 <140

-- -I .8

-- -1.3

-2.6 -2.6

-2.3 -2.3

300 300 240 210

1013802 1013801

-2.2 -2.3

-2.0 -2.1

1013803 1013803

-2.0 -2.0

-1.8 -1.8

-- NAHA001LV

-- 1013518

-- -1.0

-- -0.8

-- -2.0

-- -1.8

-- NAHA003LV

-- 1013165

-- -0.7

-- -0.6

-- -I .4

-- -I .2

Blower Data

Type& Size

MotorAmpslRpm MotorTypelH.p.

Cap.MfdNolts FilterType&Size (Permanent- notsupplied) CoolCap. (Tons)@ .5" W.C. L, ML,MHi& Hi

11-8 11-8

101850 8.0/I 050

PSC/I/2 PSC/II2

7.51370 7.51370

16x25x1 16x25x1

1112,2,21/2,3 11/2,2,2112,3

GasConversion Kits Natto LP

LPto Nat

NAHF002LP(*1009509)

NAHF002NG(*1009510)

_Order from Service Parts

N9MP2080F16A N9MP2100F14A N9MP2100J20A N9MP2125J20A

-2.6

-2.5

300 230

1013811

-1.8

-1.7

-2.6

-2.5

300 230

1013801

-1.8

-1.7

-2.6

-2.5

300

220

1013802

-1.8

-1.7

-2.6

-2.5

300 190

1013166

-1.3

-1.1

-1.8

-1.6

1013812

-2.3

-2.1

1013803

-2.2

-2.0

1013803

-1.8

-1.6

1013157

-0.9

-0.7

-1.5

-1.3

-2.0

-1.8

NAHAO01LV

1013518

-1.0

-0.8

-2.0

-1.8

-2.0

-1.8

NAHA002LV

1013515

-1.0

-0.8

-1.7

-1.5

-1.7

-1.5

NAHA003LV

1013165

-0.7

-0.6

-1.4

-1.2

11-10

10/1050

PSC/II2

101370

16x25x1

21/2,3,3112,4

NAHF003LP

C1013815)

11-10

10/1050 PSC/I/2

10/370

16x25x1

1112,2,3,3112,

11-10

131900

PSC/314

40/370

16x25x1

31/2,4,4112,5

NAHF002LP(*1009509)

NAHF002NG(*1009510)

11-10

13/900

PSC/314

40/370

16x25x1

31/2,4,4112,5

NAHF003NG

C1013816)

44001 1114O0 [_

Manufacturers Number (Mfr No -See Rating Plate) ALL Models

Specifications ('_9MPD)

*gMPD05OF12A *gMPDO75F12A

General

GasType Nat./LP Nat./LP Nat./LP Nat./LP Input(Btuh) 80,000 100,000 100,000 125,000 Output(Btuh) 73,600 92,000 92,000 115,000

Transformer Size (VA) 40 40 40 40 T'stat HeatAnticipator .10 .10 .10 .10

Temp.Rise(F) 35-65 40-70 40-70 40-70

Electrical(Volts/Hz/FLA) 11516019.0 115/60/9.0 115/60110.5 115/60/11.2 Gas& Ignition

GasType Nat. L.P. Nat. L.E Nat. LP. Nat. L.E GasValve HWSV9541M HWSV9541M HW SV9541M HWSV9541M

RegulationType SNAP SNAP SNAP SNAP IgnitionTypeISeries HWHSP HWHSP HW HSP HWHSP

ManifoldPress.(Inch'sWC) 3.5 I0.0 3.5 I0.0 3.5 10.0 3.5 I0.0 Std.MainOrifices (NoISize) 4144 4155 4142 4154 4142 4154 5142 5154 PilotOrificeSize .018 .011 .018 .011 .018 .011 .018 .011

Nat./LP Nat./LP

50,000 75,000 46,000 69,000

40 40 .10 .10

35-65 40-70

115/60/9.8 11516018.9

Nat. L.P. Nat. LE

HWSV9541M HWSV9541M

SNAP SNAP

HWHSP HWHSP

3.5 10.0 3.5 10.0

2142 2154 3142 3154

.018 .011 .018 .011

FanControls FanControl(Type) HWST9160 HWST9160 HW ST9160 HWST9160

FanControl On 30 30 30 30 (Timed-secs) Off 60,100,140,180 60,100,140,180 60,100,140,180 60,100,140,180

HWST9160 HWST9160

30 30

60,100,140,180 60,100,140,180

Combustion

Flue Outlet Size (Inches) 2 3 3 3 Std. Outlet Temp (°5' No Elbows) <140 <140 <140 <140

2 2

<140 <140

BlowerPressure 5' No Elbows (" WC) BlowerPressure40' +5-90 ° DWV Elbows (" WC)

Transition Bx Pressure 5' No Elbows (" WC) TransitionBx Pressure40' +5-90 ° DWV Elbows (" WC)

Limits & Controls Rollout Switch (F)

Limit Control Setting (F)

Standard Pressure Sw. (Part No)

Blower Switch Pressure (Close) (" WC)

Blower Switch Pressure (Open) (" WC) Transition Switch Pressure (Close) (" WC) Transition Switch Pressure (Open) (" WC)

High Altitude Pressure Sw. (Part No)

Blower Switch Pressure (Close) (" WC)

Blower Switch Pressure (Open) (" WC) Transition Switch Pressure (Close) (" WC)

Transition Switch Pressure (Open) (" WC)

-2.6 -2.6

-2.3 -2.3

300 300 260 240

1013802 1013802

-2.2 -2.2

-2.0 -2.0

1013803 1013803

-2.0 -2.0

-1.8 -1.8

Long Vent Kit (Part No) Pressure Switch (Part No)

Blower Switch Pressure (Close) (" WC)

Blower Switch Pressure (Open) (" WC) Transition Switch Pressure (Close) (" WC) Transition Switch Pressure (Open) (" WC)

High Altitude Long Vent Kit (Part No) Pressure Switch (Part No)

Blower Switch Pressure (Close) (" WC)

Blower Switch Pressure (Open) (" WC) Transition Switch Pressure (Close) (" WC) Transition Switch Pressure (Open) (" WC)

Blower Data

Type& Size

MotorAmpsIRpm MotorTypelH.p.

Cap.MfdNolts FilterType&Size (Permanent- notsupplied) CoolCap. (Tons)@ .5" W.C. L, ML,MHi& Hi

11-8 11-10

10/850 8.0/1050

PSC/1/2 PSC/112

7.51370 7.51370

16x25x1 16x25x1

1112,2,21/2,3 11/2,2,2112,3

GasConversion Kits Natto LP

LPto Nat

NAHF002LP(*1009509)

NAHF002NG(*1009510)

_Order from Service Parts

*9MPDO80J16A *gMPD100J14A *9MPD100J20A *gMPD125L20A

-2.6

-2.5

3OO 22O

1013812

-1.8

-1.7

-2.6

-2.5

300 220

1013802

-1.8

-1.7

-2.6

-2.5

300

220

1013802

-1.8

-1.7

-2.6

-2.5

300 190

1013166

-1.3

-1.1

-1.5

-1.3

1013813

-2.2

-2.0

1013803

-2.2

-2.0

1013803

-1.8

-1.6

1013157

-0.9

-0.7

-1.2

-1.0

-2.0

-1.8

-2.0

-1.8

-1.7

-1.5

NAHA002LV

1013518

-1.0

-0.8

-2.0

-1.8

NAHA00SLV

1013165

-0.7

-0.6

-1.4

-1.2

11-10

10/1050

PSC/112

101370

16x25x1

21/2,3,3112,4

NAHF003LP

C1013815)

11-10

10/1050 PSC/1/2

10/370

16x25x1

1112,2,3,31/2

11-10

131900

PSC/314

40/370

16x25x1

31/2,4,4112,5

NAHF002LP(*1009509)

NAHF002NG(*1009510)

11-10

13/900

PSC/314

40/370

16x25x1

31/2,4,4112,5

NAHF003NG

C1013816)

44001 111400

CIRCULATION AIR BLOWER DATA

For 050 Models 3 Ton Units

For 080 Models 4 Ton 19" & 223/4 " Units

Speed Low Med L Med H Hi

Tap

0.1 826 1083 1301 1408

0.2 804 1050 1242 1347

0.3 770 1028 1195 1295

0.4 735 985 1153 1237

0.5 698 952 1093 1183

0.6 657 909 1040 1118

0.7 --- 863 935 1053

lJJ

1.. m

0.8 .... 812 865 976

0.9 ...... 802 887

1.0 ...... 720 787

For 075 Models 3 Ton Units

Speed Low Med L Med H Hi

Tap

0.1 706 917 1163 1368

0.2 677 875 1120 1319

0.3 636 840 1076 1263

0.4 595 812 1031 1202

0.5 546 766 987 1148

0.6 490 702 889 1077

0.7 --- 630 821 989

0.8 --- 550 750 914

0.9 --- 462 676 833

1.0 ...... 601 747

Speed Low Med L Med H Hi

Tap

0.1 823 1109 1527 1850

0.2 795 1087 1482 1791

: 0.3 747 1056 1426 1720

_ 0.4 677 1016 1382 1648

,-9 0.5 617 970 1317 1575

0.6 544 854 1245 1485

"_ 0.7 --- 763 1154 1401

0.8 --- 652 1043 1284

0.9 ...... 905 1161

1.0 ...... 737 1028

For 100 Models 5 Ton 223/4" Units

Speed Low Med L Med H Hi

Tap

0.1 1682 1870 2081 2263

0.2 1654 1826 2031 2193

= 0.3 1597 1775 1963 2165

_J 0.4 1547 1719 1899 2056

,£ 0.5 1498 1653 1825 1978

0.6 1428 1583 1737 1854

_ 0.7 1355 1503 1650 1757

uJ 0.9 --- 1266 1428 1515

0.8 1267 1392 1548 1644

1.0 ......... 1351

For 100 Models 3.5 Ton 19" & 22314" Units

Speed Low Med L Med H Hi

Tap

0.1 700 912 1209 1550

0.2 660 884 1171 1492

0.3 616 843 1139 1434

0.4 575 790 1088 1378

0.5 528 735 1040 1317

0.6 472 677 979 1247

0.7 --- 608 909 1161

0.8 --- 528 827 1058

0.9 ...... 733 932

1.0 ...... 624 778

For 125 Models 5 Ton Units

Speed Low Med L Med H Hi

Tap

0.1 1720 1910 2127 2315

'_ 0.2 1686 1881 2087 2268

_ 0.3 1644 1833 2024 2201

,£ 0.4 1600 1777 1961 2131

_ 0.5 1533 1720 1891 2029

"_ 0.6 1494 1647 1804 1948

0.7 1413 1571 1708 1820

uJ 0.8 1306 1470 1604 1730

0.9 .... 1349 1484 1614

1.0 ........ 1328 1430

44001 111400 [_

CONNECTION DIAGRAM

DANGER: ELECTRICAL SHOCK HAZARD DISCONNECT BEFORE SERVICING

LADDER DIAGRAM

HOT 115V*60HZ NEUTRAL

SWITCH GND.

I_NTERLOCK O--111 t i

L P _(_ _ COOL HI (BK) NI'

lL _ 10 HEAT MHI (O)

: iF"_,,.,, _W- _) _x/,.-.._ II

LO,R,

II II II

5 &= = =@O_,c

_= -----:4)O HuM

&o--d22,

"J----" TRANSFORMER

r- -"r72'7'Lf

5AO,.S"_

FUSE

FURNACE CONTROL

li I TO 2 IN SER,ES

EACOI:= _ :_

HUM_= _ :_

o= --_ :_

ROLLOUT SWITCH

1 TO 3 IN SERIES

DEPENDING ON MODEL

PRESSURE SWITCH

DEPENDING ON MODEL

:£ m c) c)

-_ O0 O0

ON---_

r_m m_ _Z

--t -t

p z

r- r-

_. cJ1

n _R

o0 ;;13

-- O

3: I--

z .-4

_ o O

m C

m ITi

NOTE: MOST VOLT METERS WILL READ 13-16 VOLTS TO

CHASSIS ON BOTH SIDES OF AN OPEN LIMIT OR PRESSURE SWITCH IN THE RECTIFIED AC

VOLTAGE CIRCUIT

-e 4_

SEE MANUALS FOR ADJUSTING SPEED TAPS FOR PROPER HEATING, COOLING & CIRCULATING SPEEDS.

I SPEED TAP CODE BLACK BK

BLACK HI BLUE-MLO BLUE BL

-- LINE VOLTAGE FACTORY LINE VOLTAGE FIELD

-- -- -- LOW VOLTAGE FACTORY

-- -- -- LOW VOLTAGE FIELD

-- i = INTERNAL CIRCUIT BOARD WIRING

-- • -- RECTIFIED AC VOLTAGE FACTORY

ORANGE-MHI REDLO BROWN BR

COLOR CODE

GREEN G ORANGE O RED R

WHITE W

YELLOW Y

PURPLE P

IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE APPLIANCE MUST BE REPLACED, iT MUST BE REPLACED WITH TYPE

AWM _ 105°C WIRE OR ITS EQUIVALENT

t012910-E

AA-

C¢

25-23-95

Representative 0kawing only, some models may vary in appearance.

I Replacement Parts - NgMP1 & NgMP2

Models - N9MP1050B12A4, N9MP1075B12A4, N9MP1080F16A4, N9MP1100F14A4, N9MP1100J20A4 & N9MP1125J20A4 - N9MP2050B12A4, N9MP2075B12A4, N9MP2080F16A4, N9MP2100F14A4, N9MP2100J20A4 &

N9MP2125J20A4 (Natural Gas) Replacement part supplied will be current active part. For parts not listed, consult place of purchase.

Key Description Part

No, Functional Number 050B 075B 080F 100F 100J 125J 050B 075B 080F 100F 100J 125J

1 HeatExchanger,Primary 1012847 1 1

2 HeatExchanger,Secondary 1013760 1 1

3 Motor, Blower 1009052 1 1 1 1

4 Mount, Motorkit 1013379 1 1 1 1

5 Wheel, Blower 1013011 1 1 1 1

6 Transformer 1012722 1 1 1 1 1 1 1 1 1 1 1 1

7 Capacitor, 10Mfd, 370V 1094956 1 1 1 1

7.5Mfd.,370V 1094239 1 1 1 1 40Mfd.,370V 1012176 1 1 1 1

8 Control,Fan Timer 1012358 1 1 1 1 1 1 1 1 1 1 1 1 9 Switch, Interlock 1012351 1 1 1 1 1 1 1 1 1 1 1 1

10 Switch, Pressure 1013802 1 1 1 1 1

11 Blower,Exhaust(Jakel) 1014338 1 1 1 1 1 1 1 1 1 1

12 Valve,GasHSP Nat. 1013350 1 1 1 1 1 1 1 1 1 1 1 1 13 Burner,PilotHSP 1008731 1 1 1 1 1 1 1 1 1 1 1 1 14 Igniter/SensorHSP 1009524 1 1 1 1 1 1 1 1 1 1 1 1

15 Orifice,Burner#42 Nat. 1011351 2 3 4 4 5 2 3 4 4 5

#44Nat. 1011352 4 4

16 Switch, Limit(Reneut) 1013102 2 2 2 2 2 2 2 2 2 2 2 2 17 BurnerAssembly 1008723 1 1

18 Switch, Limit(Main) 34335001 1 1

19 Orifice,Pilot .018 503211 1 1 1 1 1 1 1 1 1 1 1 1

1012851 1 1 1012855 1 1 1 1

1012856 1 1 1012859 1 1

1013761 1 1 1013764 1 1 1 1 1013765 1 1

1013766 1 1

1013341 1 1 1 1 1011906 1 1 1 1

522020024 1 1 1 1 1 1 1 1

1011420 1 1 1 1 1 1 1 1

1013811 1 1 1013801 1 1 1 1013166 1 1

1014341 1 1

1008724 1 1 1008725 1 1 1 1 1 1

1008726 1 1

34335002 1 1

1320361 1 1 1 1 1008445 1 1

1320367 1 1

12A 12A 16A 14A 20A 20A 12A 12A 16A 14A 20A 20A

N9MP1 N9MP2

_] 44001 1114O0

I Replacement Parts - NgMP1 & NgMP2

Models - N9MP1050B12A4, N9MP1075B12A4, N9MP1080F16A4, N9MP1100F14A4, N9MP1100J20A4 & N9MP1125J20A4 - N9MP2050B12A4, N9MP2075B12A4, N9MP2080F16A4, N9MP2100F14A4, N9MP2100J20A4 &

N9MP2125J20A4 (Natural Gas) Replacement part supplied will be current active part. For parts not listed, consult place of purchase.

Key Description Part N9MP1 N9MP2

No. Non-Functional Number 12A 12A 1GA 14A 20A 20A 12A 12A 16A 14A 20A 20A

A Panel,Top

B Gasket,TopPanel

F Partition,Blower

H Housing,Blower

J Panel,BlowerCutoff

K Hanger,Blower

L Door,Blower

M Bracket,DoorFiller

N Door,Front

O Clamp,Capacitor 1095020 1 1 1 1 1 1 1 1

P TransitionAssembly 1012280 1 1 1 1

Q Gasket,Blower 1014425 1 1 1 1 1 1 1 1 1 1 1 1 R Bear&Insulating 1012417 1 1 1 1

S Box,Collector 1012128 1 1 1 1

T Gask_,Transition 1013079 1 1 1 1

U Gask_, CollectorBox 1012593 1 1 1 1

V Partition,FrontHtExchanger 1012646 1 1

1012324 1 1012325

1012326 1012954 1012955 1012956

1012602 1 1012603

1012604

1014009 1 1014010 1014011

1014015 1014014 1014016

1012972 1 1012888

721020013 1 721020008

1012328 2 1013215 1

1013216 1013217 1013207 1013208

1013209 1014005 1

1014006 1014007

1013789 1 1013790

1013791 1013210 1 1 1013211 1 1 1013212 1 1

1095022 1 1 1 1

1012281 1 1 1 1 1012282 1 1 1 1

1012418 1 1 1 1 1012419 1 1 1 1

1012244 1 1 1 1 1012245 1 1 1 1

1013080 1 1 1 1 1013083 1 1 1 1

1012594 1 1 1 1 1012595 1 1 1 1

1012647 1 1 1012649 1 1 1 1 1012651 1 1 1012652 1 1

O50B 075B 080F lOOF lOOJ 125J O50B 075B 080F IOOF lOOJ 125J

2 1

1 2

44001 111400

I Replacement Parts - NPMP1 & NPMP2

Models - N9MP1050B12A4, N9MP1075B12A4, N9MP1080F16A4, N9MP1100F14A4, N9MP1100J20A4 & N9MP1125J20A4 - N9MP2050B12A4, N9MP2075B12A4, N9MP2080F16A4, N9MP2100F14A4, N9MP2100J20A4 & N9MP2125J20A4 (Natural Gas)

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

Key Description Part

No. Non-Functional Number 12A 12A 16A 14A 20A 20A

W Gasket,AttachmentPlate 1012542 2

X Cover,JunctionBox 1012350 1 1 1 1 1 1 Y Box,Junction 1012349 1 1 1 1 1 1

Z Tube, Pilot 1013077 1

AA Bracket,Pilot 1010901 1 1 1 1 1 1 BB Manifold 1012276 1

CC Bottom,BurnerBox 1012334 1 1

DD Baffle,BurnerBox 1012338 1 1

EE Top,BurnerBox 1013702 1 1

FF Bracket,ManifoldSupport 1012377 2 2 2 2 2 2

GG Bracket,BurnerBox Side 1012532 2 2 2 2 2 2

HH Bracket,ControlMounting 1012321 1 1 1 1 1 1

JJ Tube,Sensor 1009238 1 1 1 1 1 1

KK Trap,DrainAssembly 1013676 1 1 1 1 1 1

LL Sightglass 1012756

)( PARTNOT ILLUSTRATED )( Clamp,Hose3/4"

)( Clamp,Hoses/8" )( Coupling,Air Intake

)( Grommet,Vinyl )( Drain,Vent

)( Pipe,PVC )( Grommet,Vent

)( Gasket,Air Intake )( Gasket,Trap )( Harness,Wire

)( Hose,Drain1/2" )( Hose,Drain5/8"

)( Hose,Drain3/16" )( DoorScrews

)( DoorScrew Retainers )( Bushing,StrainRelief

)( InstallationManual )( User'sManual

1012543 2 1012544 2 2 2 1012545 2

1012832 1 1 1 1 1012834 1

1012277 1 1012278 1 1 1

1012279 1

1012335 1 1 1 1012336 1

1012339 1 1 1 1012340 1

1013703 1 1 1 1013704 1

1012976 1012975

1012284

1009535 1014003

1171527

1012697 1012583

1013701 1013716

1013718 1013719

1014358 1014359

1009238 1013349

1013725 1945287

44001111300

44102200300

050B 075B 080F 100F 100J 125J

2 2

1 1

1 4

4 1

1 1

2 2 2 2

1 1 1 1

1 1

1 1 1 1

1 1 4 4

4 4 1 1

1 1 1 1

NgMP1

2 2

I I

1 1

1 4

4 1

1 1

2 2

1 1

1 4

4 1

1 1

050B 075B 080F 100F 100J 125J

12A 12A 16A 14A 20A 20A

1 1 1 1

1 1

2 2 2 2

1 1 1 1

2 2

1 1

1 1 1

1 4

4 1

1 1

2 2

1 1

1 4

4 1

1 1

2 2

1 1

1 4

4 1

1 1

NgMP2

2 2 2

1 1 1 1 1 1 1 1

1 1 1

1 1 1 1

1 1 1

2 2 2 2 2 2 2 2

1 1 1 1 1 1 1 1

2 2

1 1

1 4

4 1

1 1

2 2

1 1

1 4

4 1

1 1

2 2

1 1

1 4

4 1

1 1

2 2

1 1

1 1 1

1 4

4 1

1 1

_] 44001 1114O0

I Replacement Parts - *9MPD

Models - *9MPDO50F12A4, *9MPDO75F12A4, *9MPDO80J16A4, *9MPD100J14A4, *9MPDIOOJ2OA4 &*9MPD125L20A4 (Natural Gas)

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

Key Description Part *gMPD

No. Functional Number 050F12A 075F12A 080J16A 100J14A 100J20A 125L2OA

1 HeatExchanger,Primary 1

2 HeatExchanger,Secondary

Motor, Blower

Mount, Motor kit

Wheel,Blower

Transformer

Capacitor,7.SMfd.,370V

Control,FanTimer

Switch,Interlock

Switch,Pressure

11 Blower,Exhaust(Jakel)

12 Valve,GasHSP Nat. 13 Burner,Pilot HSP 14 Igniter/SensorHSP 15 Orifice,Burner#42 Nat.

16 Switch,Limit(Rollout) 17 BurnerAssembly

18 Switch, Limit (Main)

Orifice, Pilot .018

10Mfd.,370V 40Mfd.,370V

#44Nat

1012850 1012854

1012858 1012862

1013762 1013763

1013765 1013767

1009052 1013341

1011906

1013379

522020024

1013011 1011420

1012722 1094239

1094956 1012176

1012358 1012351

1013802 1013812 1013166

1014388 1014341

1013350 1008731 1009524

1011351 1011352

1013102 1008723

1008724 1008725 1008726

1320366

34335002

1008445 1320367

503211

I I

1 1 1 2

1 1

1 1 1 3

1 1

1 1 1

4 2

1 1

I I

1 1 1 4

1 1

1 1 1 4

1 1

1 1 5

*Denotes Brand

44001 1114O0 [_

I Replacement Parts - *9MPD

Models - *9MPDO50F12A4, *9MPDO75F12A4, *9MPDO80J16A4, *9MPD100J14A4, *9MPDIOOJ2OA4 &*9MPD125L20A4 (Natural Gas)

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

Key

No.

Panel,Top

Gasket,TopPanel

Partition,Blower

Housing,Blower

Panel,BlowerCutoff

Hanger,Blower

Door,Blower(Tempstaronly)

Bracket,DoorFiller

Door,Front(]-staronly) (]-staronly)

(Tstaronly) (Cmaker/Keepriteonly) (Cmaker/Keepriteonly) (Cmaker/Keepriteonly)

(Heil/Arcoonly) (Heil/Arcoonly) (Heil/Arcoonly)

Clamp,Capacitor

TransitionAssembly

Gasket,Blower

Board,Insulating

Box,Collector

Gasket, Transition

Gasket, Collector Box

Partition, Frt Ht Exchanger

Non- Functional Number

Description Part *gMPD

1012342 1012343 1012344

1012603 1012604 1012605

1014018 1014014 1014016

1014017 1012972

1012888

721020013 721020008

1012328 1013151

(Tempstaronly) (Tempstaronly)

(Comfortmaker/Keepriteonly) (Comfortmaker/Keepriteonly)

(Comfortmaker/Keepriteonly) (Heil/Arcoaireonly) (Heil/Arcoaireonly) (Heil/Arcoaireonly)

1013152 1013153 1013141

1013142 1013143 1013138 1013139 1013140

1014006 1014007 1014008

1013154 1013155 1013156

1013148 1013149 1013150 1013145 1013146

1013147 1095020

1095022 1012281

1012282 1012283

1014425 1012418

1012419 1012420

1012244 1012245 1012246

1013263 1013080 1013083

1013084 1012594

1012595 1012596

1012650 1012648

1012651 1012653

050F12A

2 1

1 1

075F12A

1 2

1 1

080J16A

1 2

100J14A

100J2OA

1 2

125L20A

1 2

1 1

*Denotes Brand

_]] 44001 1114O0

I Replacement Parts - *9MPD

Models - *9MPDO50F12A4, *9MPDO75F12A4, *9MPDO80J16A4, *9MPD100J14A4, *9MPDIOOJ2OA4 &*9MPD125L20A4 (Natural Gas)

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

Key Description *gMPD

No. Non- Functional 080J16A 100J14A 100J20A 125L20A

W Gasket, Attachment Plate

X Cover,JunctionBox Y Box,Junction Z Tube, Pilot

AA Bracket,Pilot BB Manifold

CC Bottom, Burner Box

DD Baffle,BurnerBox

EE Top,BurnerBox

FF Bracket,ManifoldSupport

GG Bracket,BurnerBoxSide

HH Bracket,ControlMounting

JJ Tube,Sensor

KK Trap, DrainAssembly

LL Sightglass Comfortmaker& Hell

TempstarOnly

Part

Number

1012542 1012543

1012544 1012545

1012350 1012349 1012832

1013077 1012834

1010901 1012276

1012277 1012278 1012279

1012334 1012335

1012336 1012338

1012339 1012340

1013702 1013703 1013704

1012377 1012532 1012321

1009238 1013676 1013235

1013236

050F12A

1 1

2 2 1

1 1 1

075F12A

I I I

2 2 1

1 1 1

I I I

2 2 1

1 1 1

I I I

2 2

1 1

I I I

2 2

1 1

1 2 2 1

1 1 1

)( PART NOT ILLUSTRATED )( DoorScrews )( DoorScrewRetainers )( Clamp,Hose 314" )( Clamp,Hose518" )( Coupling,AirIntake

)( ClampHose )( DrainVent

)( Coupling,Discharge )( Elbow,90°

)( Pipe,PVC )( Gasket,AirIntake )( Gasket,Trap

)( Grommet,Vent )( Harness,Wire

)(

Bushing,Strain

)(

Grommet,Vinyl

)(

Hose,Drain1/2"

)(

Hose,Drain5/8"

)(

Hose,Drain 3/16"

)(

InstallationManual User'sManual

)(

*Denotes Brand

44001 111400

1013349 1013725 1012976

1012975 1012284 1013830 1014003

1002522 1013920 1171527 1012583

1013701 1012697 1013716

1013718 1013719

1945287 1009535 1014358

1014359 1009238

44001111400

44102200300

4 4 2

2 1 4 1

2 1 1 1

1 1 1

4 4 2

2 1 4 1

2 1 1 1

1 1 1

I I I

4 4 2

2 1 4 1

2 1 1 1

1 1

I I I

4 4 2

1 1 1

1 1

I I I

4 4 2

1 1 1

1 1

I I I

4 4 2

2 1 4 1

2 1 1 1

1 1

I I I I

I I I

I Replacement Parts - *9MPD

Models - *9MPD050F12A4, *9MPD075F12A4, *9MPD080J16A4, *9MPD100J14A4, *9MPD100J20A4 &*9MPD125L20A4 (Natural Gas)

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

Key Description

No. Non- Functional

Gas Conversion Kits Nat to LP NAHF002LP

LP to Nat NAHF002NG Nat to LP NAHF003LP LP to Nat NAHF003NG

* Order from Service Parts

Part *gMPD

Number 080J16A

*1009509 *1009510

*1013815 *1013818

050F12A

1 1

075F12A

1 1

100J14A

1 1

100J20A

1 1

125L20A

1 1

I Replacement Parts - N9MP1 & N9MP2

Models - N9MP1050B12A4, N9MP1075B12A4, N9MP1080F16A4, N9MP1100F14A4, N9MP1100J20A4 &

N9MP1125J20A4 - N9MP2050B12A4, N9MP2075B12A4, N9MP2080F16A2, N9MP2100F14A4, N9MP2100J20A4 & N9MP2125J20A4 (Natural Gas)

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

Key Description Part N9MP1 NgMP2

No. Non-Functional

Gas Conversion Kits Nat to LP NAHF002LP

LP to Nat NAHF002NG Nat to LP NAHF003LP

LP to Nat NAHF003NG * Order from Service Parts

Number 12A 12A 16A 14A 20A 20A 12A 12A 16A 14A 20A 20A

*1009509 1 1 1 1 1 1 1 1 1 1 *1009510 1 1 1 1 1 1 1 1 1 1 *1013815 1 1 *1013816 1 1

O50B 075B 080F IOOF lOOJ 125J O50B 075B 080F IOOF lOOJ 125J

*Denotes Brand

44001 1114O0

Sears 9MPD, N9MP2, N9MP1 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual