ICP C9MPD050F12C1 User Manual 90+ SINGLE STAGE GAS FURNACE Manuals And Guides L0601175

ICP Furnace/Heater, Gas Manual L0601175 ICP Furnace/Heater, Gas Owner's Manual, ICP Furnace/Heater, Gas installation guides

User Manual: ICP C9MPD050F12C1 C9MPD050F12C1 ICP 90+ SINGLE STAGE GAS FURNACE - Manuals and Guides View the owners manual for your ICP 90+ SINGLE STAGE GAS FURNACE #C9MPD050F12C1. Home:Heating & Cooling Parts:Icp Parts:Icp 90+ SINGLE STAGE GAS FURNACE Manual

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90 SingleStage

CategoryIVFurnace

N9MP1 & N9MP2

*9MPD *Denotes Brands (C, H, T)

FANASSISTED,DIRECTOR

NON-DIRECTVENTGASFURNACE

SAFETY REQUIREMENTS

Recognize safety information. This is the safety- alert symbolZ_. When you see this symbol on the furnace and in instructions 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. CAUTIONis used to identify unsafe practices that could result in minor personal injury or product and property damage. Note is used to

highlight suggestions that will result in enhanced installation, reliability, or operation.

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) ANSI

Z223.1-2002/NFPA No. 54-2002. In Canada, refer tothecurrent edition of the National Standard of Canada Natural Gas and Propane Installation

Code (NSCNGPIC) CSA B149.1-05. Wear safety glasses and work gloves. Have fire extinguisher available during start-up and adjustment

procedures and service calls.

These instructions cover minimum requirements and conform to existing national standards and safety codes. In some instances, these instructions

exceed certain local codes and ordinances, especially those that may not have kept up with changing residential construction practices. We require

these instructions as a minimum for a safe installation.

International Comfort Products, LLC

Lewisburg, TN 37091 U.S.A.

Table of Contents

INSTALLER: Affix these instructions

on or adjacent to the furnace.

CONSUMER: Retain these

instructions for future reference.

1. SafeInstallationRequirements................. 3

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

3. Combustion & Ventilation Air .................. 8

4.Vent & Combustion Air Piping ................ 12

5. GasSupply and Piping ...................... 30

6. Electrical Wiring ........................... 37

7. Ductwork and Filter ........................ 37

8. Checks and Adjustments .................... 39

9. Furnace Maintenance ....................... 42

10. Sequence of Operation & Diagnostics .......... 44

11. Concentric Vent Termination ................. 45

Tech Support and Parts ........................ 47

ELECTRIC SHOCK HAZARD

Failure to follow safety

warnings exactly could result

in serious injury and/or death.

Turn Off All Power Before

Servicing.

CARBON MONOXIDE POISONING AND FIRE

HAZARD.

Failure to follow safety warnings exactly could

result in serious injury, death, and/or property

damage.

This furnace is not designed for use in mobile

homes, trailers or recreational vehicles.

PrintedinU.S.A. 11/28/2005 440 01 1021 (02)

START-UP CHECK SHEET

For 90+ Furnace

(Keep this page for future reference)

Dealer Name:

Address:

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

Business Card Here

Phone:

Owner Name:

Address:

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

Model Number:

Serial Number:

Type of Gas: Natural: [_ LP: [_

Which blower speed tap is used?

(Heating) (Cooling).

Temperature of Supply Air: (°F) or(°C)

Temperature of Return Air: (°F)__.or(°C).

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

Filter Type and Size:

Fan "Time ON" Setting:.

Fan "Time OFF" Setting:

Manual Gas Shut-Off Upstream

of Furnace/Drip- Leg?

Condensate Drain Connected?

YES [_

Condensate Drain Trapped? YES [_

NOE_I

Transition Pressure switch hose relocated for U/D/H

Application? YES [_ NO [_

Blower Speed Checked? YES [_ NO [_

All Electrical Connections Tight? YES [_

Gas Valve turned ON? YES [_ NO [_

NOE_I

Measured Line Pressure When Firing Unit:

Calculated Firing Rate:(See Checks and Adjustments Sec-

tion).

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

Measured Manifold Gas Pressure:

Static Pressure (Ducts): Supply Air Return

Date of Start-Up:

CO?

CO2 ?

Dealer Comments:

E_ 44001102102

1. Safe Installation Requirements

FIRE, EXPLOSION, AND ASPHIXIATION HAZARD

Improper adjustment, alteration, service,

maintanence or installation could cause death,

personal injury and/or property damage.

Installation or repairs made by unqualified persons

could result in hazards to you and others.

Installation MUST conform with local codes or, in

the absence of local codes, with codes of all

governmental authorities havingjurisdiction.

The information contained in this manual is

intended for use by a qualified service agency that

is experienced in such work, is familiar with all

precautions and safety procedures required in

such work, and is equipped with the proper tools

and test instruments.

•This furnace is NOT approved for installation in mo-

bile homes, trailers or recreation vehicles.

• Seal around supply and return air ducts.

• Install correct filter type and size.

• Unit MUST be installed so electrical components are pro-

tected from direct contact with water.

Safety Rules

Your unit is built to provide many years of safe and dependable

service providing 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 encourages

installation of carbon monoxide alarms. There can be various

sources of carbon monoxide in a building or dwelling. The

sources could be gas-fired clothes dryers, gas cooking

stoves, water heaters, furnaces, gas-fired fireplaces, wood

fireplaces.

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

(formerly AGA and CGA) for installation in the United States and

Canada. Refer to the appropriate codes, along with this manual,

for proper installation.

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

Rating Plate on unit). Overfiring will result in failure of heat

exchanger and cause dangerous operation. (Furnaces

can be converted to L.R gas with approved kit.)

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

fied in "2. Installation"of these instructions.

• Provide adequate combustion and ventilation air to the fur-

nace as specified in "3. Combustion and Ventilation Air" of

these instructions.

Carbon monoxide can cause serious bodily injury and/or

death. Carbon monoxide or "CO" is a colorless and odorless

gas produced when fuel is not burned completely or when the

flame does not receive sufficient oxygen.

Therefore, to help alert people of potentially dangerous ca rbon

monoxide levels, you should have a commercially available

carbon monoxide alarm that is listed by a nationally recog-

nized testing agency in accordance with Underwriters Labora-

tories Inc. Standard for Single and Multiple Station Carbon

Monoxide Alarms, ANSI/UL 2034 or the CSA 6.19-01 Resi-

dential Carbon Alarming Devices installed and maintained in

the building or dwelling concurrently with the gas- fired furnace

installation (see Note below). The alarm should be installed as

recommended by the alarm manufacturer's installation in-

structions.

Combustion products must be discharged outdoors. Con-

nect this furnace to an approved vent system only, as spe-

cified in "4. Vent and Combustion Air Piping" 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

"6. Gas Supply and Piping, Final Check"of these instruc-

tions.

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 range,

as specified in "Technical Support Manual" of these in-

structions. See furnace rating plate.

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 a

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 "2. Installation"of these

instructions.

44001 102102

This furnace is not to be used for temporary heating of

buildinq.s or structures under construction.

B, There can be numerous sources of fire or smoke in a building

or dwelling. Fire or smoke can cause serious bodily injury,

death, and/or property damage. Therefore, in order to alert

people of potentially dangerous fire or smoke, you should have

fire extinguisher and smoke alarms listed by Underwriters Lab-

oratories installed and maintained in the building or dwelling

(see Note below).

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

and makes no representations regarding any brand or type

of alarms.

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

do the following:

1. Thoroughly read this manual and labels on the unit. This

will help you understand howyour unit operates and the haz-

ards involved with gas and electricity.

Do not use this unit if any part has been under water. Im-

mediately call a qualified service technician to inspect the unit

and to replace any part of the control system and any gas con-

trol which has been under water.

Never obstruct the vent grilles, or any ducts that provide

air to the unit. Air must be provided for proper combustion

and ventilation of flue gases. C21

FrozenWater PipeHazard

WATER DAMAGE TO PROPERTY HAZARD

Failure to protect against the risk of freezing may

result in property damage.

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 and

resultant damage.

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.

If your furnace remains off for an extended time, the pipes in your

home could freeze and burst, resulting in serious water damage.

If the structure will be unattended during cold weather you should

take these precautions.

1. Turn off the water supply to the structure and drain the water

lines if possible and add an antifreeze for potable water to

drain traps and toilet tanks. Open faucets in appropriate

areas.

-or-

2. Installation

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-

3. Install a reliable remote sensing device that will notify some-

body 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 10 trough Figure 19)

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 sani-

tary type (RV) antifreeze into the condensate trap. Recon-

nect 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 Tran-

sition 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.

CARBON MONOXIDE POISONING HAZARD

Failure to properly vent this furnace or other

appliances could result in death or personal injury.

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

3reviously common-vented furnace, it may be

necessary to resize the existing vent and chimney to

3revent oversizing problems for the other

remaining appliance(s). See Venting and Combus-

tion Air Check in Gas Vent Installation section. This

furnace MUST be vented to the outside.

Location and Clearances

1, Refer to Figure 1 or Figure 2 for typical installation and ba-

sic connecting parts required. Refer to Figure 5 for typical

horizontal direct vent installation and basic connecting parts

required. Supply and return air plenums and duct are also

required.

Typical Upflow Installation

Aluminum or non-rusting shield recommended. (See

Vent Termination Shielding for dimensions).

8" Min. _1 _[_nlet

20Max Pipe(not

in same _ _ used on Single

atmospheric Pipe model)

zone

Vent PipesMUST be

supportedHorizonta]l

and Vertically

Couplingon endsof

exhaust pipe.Total

_pipe & coupling out-

' in.

_atmosphedc'ax.

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

0 ° F). 25-23-33

E_I 44001 102102

TypicalDownflowInstallation

See VentTermination

Shieldingin VentSection.

_1 14' *8" Min.

InletPipe _ I] 20' Max.

(not used on _ in same

SinglePipe _ I,,,J I,, atmospheric zone

model) _ '_'

Vent Pip MUST bq

support_ 4orizonte

and Vertically

Coupling on inside

and outside of wall

to restrain vent pipe

Min.

Max.

same

osphericzone

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

below 0°F). 25-23-33a

CARBON MONOXIDE POISONING HAZARD.

Failure to follow safety warnings exactly could

result in death or personal injury.

Do NOT operate furnace in a corrosive atmosphere

containing chlorine, fluorine or any other damaging

chemicals, which could shorten furnace life.

Refer to 3. Combustion & Ventilation Air section,

Contaminated Combustion Air for combustion air

evaluation and remedy.

2, If furnace is a replacement, it is usually best to install the fur-

nace where the old one was. Choose the location or evalu-

ate the existing location based upon the minimum clearance

and furnace dimensions (Figure 3).

FROZEN AND BURST WATER PIPE HAZARD

Failure to protect against the risk of freezing may

result in property damage.

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")

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.

Installation Requirements

1. Install furnace level.

44001 102102

2. This furnace is NOT to be used for temporary heat of buildings

or structures under construction.

3. Install the vent pipes as short as practical. (See Gas Vent

Installation section).

4. Do NOT install furnace directly on carpeting, tile or other com-

bustible material other than wood flooring.

5. Maintain clearance for fire safety and servicing. A front clear-

ance of 30" is minimum for access to the burner, controls and

filter. See clearance requirements in Figure 3.

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

7. Residential garage installations require:

• Burners and ignition sources installed at least 18" (457 ram)

above the floor.

Furnace must be located or physically protected from pos-

sible damage by a vehicle.

If the furnace is to be suspended from the floor joists in a base-

ment or a crawl space or the rafters in an attic, it is necessary

to use steel pipe straps or an angle iron frame to attach the

furnace. 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.

Local codes may require a drain pan under the entire furnace

and condensate trap when the furnace is installed in attic ap-

plication.

This furnace may be used for construction heat provided that all

the following conditions are met:

The furnace is permanently installed with all electrical wir-

ing, piping, venting and ducting installed according to these

installation instructions. A return air duct is provided, sealed

to the furnace casing, and terminated outside the space

containing the furnace. This prevents a negative pressure

condition as created by the circulating air blower, causing a

flame rollout and/or drawing combustion products into the

structure.

• The furnace is controlled by a thermostat. It may not be "hot

wired" to provide heat continuously to the structure without

thermostatic control.

Clean outside air is provided for combustion. This is to mini-

mize the corrosive effects of adhesives, sealers and other

construction materials. It also prevents the entrainment of

drywall dust into combustion air, which can cause fouling

and plugging of furnace components.

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

tained between 55 ° F (13 ° C) and 80 ° F (27 ° C), with no eve-

ning setback or shutdown. The use of the furnace while the

structure is under construction is deemed to be intermittent

operation per our installation instructions.

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

furnace rating plate, and the firing rate has been set to the

rating plate value.

The filters used to clean the circulating air during the

construction process must be either changed or thoroughly

cleaned prior to occupancy.

The furnace, ductwork and filters are cleaned as necessary

to remove drywall dust and construction debris from all

HVAC system components after construction is completed.

After construction is complete, verify furnace operating con-

ditions including ignition, input rate, temperature rise and

venting, accordinq to these instructions.

Dimensions & Clearances

TOP

_qE --

LEFT SIDE

TRAP (KO)(COUNTERELON)_

VENT _

AIR INTAKE (KO)

(ALTERNATE)

413116_

TRAP (KO)

UPFLOW/HORIZONTAL

•THERMOSTAT/_ 7--(KO)

_=_/ 215/8 47/8

17/8 24

BOTTOM

Unit

Capacity

N9MP1050B12

N9MPlO75B12

N9MP1080F16

N9MP1100F14

N9MPllOOJ20

N9MPl125J20

N9MP2050B12

N9MP2075B12

N9MP2080F16

N9MP2100F14

N9MP2100J20

N9MP2125J20

*9MPD050F12

*9MPD075F12

*9MPDO80J16

*9MPDlOOJ14

*9MPDIOOJ20

*9MPD125L20

23118

Cabinet Boffom

_O_G/AIR INTAKE

VENI (*9MPD)

_11/4

/ELECTRICAL

11116

13/8 29_/8

24 _/4

175116

/16

_-_ 37/8

_A_

-- B--

FRONT

131116

1913/6

Drawing is representative,

but some models may vary

MINIMUM CLEARANCES TO

COMBUSTIBLE MATERIALS FOR ALL UNITS

REAR 0

FRONT (combustion air openings in 3"

furnace and in structure)

Required For Service '24"

ALL SIDES Of SUPPLY PLENUM 1"

SIDES 0

VENT 0

TOP OF FURNACE 1"

"30" clearancerecommendedfor furnaceremoval.

Horizontal position: Line contact is permissible only between

lines formed by intersections of top and two sides of furnace

jacket, and building joists, studs or framing.

NOTE: Evaporator "A" coil drain pan dimensions

may vary from furnace duct opening size. Always

consult evaporator specifications for duct size

requirements.

Furnace is designed for bottom return or side

return,

Return air through back of furnace is NOT allowed.

ALL DIMENSIONS IN INCHES

_P 11/16_

GAS (KO)

KO = KnockOut

28112

-- 18112

RIGHT SIDE

,TRAP(KO) (COUNTERFLOW)

ELECTRICAL(KO)

AIR INTAKE(KO)

(ALTERNATE)

VENT (KO)

TRAP(KO)

UPFLOWtHORIZONTAL

21/4

THERMOSTAT l

191/4

1718

25-23-36b

Dentoes Brand

E_ 44001 102102

Knock Outs

CUT HAZARD

Failure to follow this caution may result in personal

injury.

Sheet metal parts may have sharp edges or burrs.

Use care and wear appropriate clothing, safety

glasses and gloves when handling parts and

servicing furnaces.

Use a hammer and screwdriver to strike a sharp blow (see

Figure 4) directly to the knockout tie points or use a hammer in the

upper left corner of the desired knockout. Remove any burrs and

sharp edges.

Hammer and Screwdriver Used

for Knockout

25-40-06

IOTE: If aknockout does not come out after two sharp blows, pull

and snip as needed to remove the knockout.

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 at-

tached 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 at-

tached 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 follow-

ing:

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

_e of the condensate from the furnace. The furnace must be

44001 102102

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 installa-

tions.

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.

Horizontal Furnace Installation

Vent

Typical Horizontal Installation

Inlet Pipe (not used on Single Pipe model)

Condensate

Trap

25-23-34

NOTE: 6"bottomclearancerequiredfor condensatetrap.

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 5. Do not install furnace on its back or in

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

versely affected.

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.

Twenty four (24) inches between the front of the furnace and adja-

cent construction or other appliances MUST be maintained for ser-

vice 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 5.

This furnace MUST NOT be installed directly on carpeting or tile or

other combustible material other than wood flooring or supports.

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

cated auxiliary drain pan with drain pipe is required to prevent

damn eq___ overflow due to blocked condensate drain.

3. Combustion & Ventilation Air

For Single PipeInstallation When the installation is complete, check that all appliances have

adequate combustion air and are venting properly. See Venting

And Combustion Air Check in "4. Gas Vent Installation"Section in

this manual.

CARBON MONOXIDE POISONING HAZARD.

Failure to provide adequate combustion and

ventilation air could result in death 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

the gas codes, or in the absence of local codes, the applicable na-

tional codes.

Combustion and ventilation air must be supplied in accordance

with one of the following:

1. Section 8.3, Air for Combustion and Ventilation, of the National

Fuel Gas Code, (NFGC), ANSI Z223.1-2002/NFPA 54-2002

in the U.S.,

2. Sections 7.2, 7.3, 7.5, 7.6, 7.7, and 7.8 of National Standard of

Canada, Natural Gas and Propane Installation Code

(NSCNGPIC), CSA B149.1-05 in Canada,

3. Applicable provisions of the local building code.

Outdoor Combustion Air Method

A space having less than 50 cubic feet per 1,000 BTUH input rating

for all gas appliances installed in the space requires outdoor air for

combustion and ventilation.

Air Openings and Connecting Ducts

1. Total input rating for all gas appliances in the space MUST be

considered when determining free area of openings.

2. Connect ducts or openings directly to the outdoors.

3. When screens are used to cover openings, the openings

MUST be no smaller than 1/4" mesh.

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

When sizing a grille, louver, or screen use the free area of

opening. If free area is NOT stamped or marked on grill or lou-

ver, assume a 20% free area for wood and 60% for metal.

Screens shall have a mesh size not smaller than 1/4".

Requirements

1. Provide the space with sufficient air for proper combustion and

ventilation of flue gases using horizontal or vertical ducts or

openings.

2. Figure 6 illustrates how to provide combustion and ventilation

air when two permanent openings, one inlet and one outlet, are

used.

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 facto-

ry- built or masonry chimney. Multistory venting is NOT permitted.

If this furnace is replacing a previously common-vented furnace, it

may be necessary to resize the existing vent and chimney to pre- a. One opening MUST commence within 12" of the floor

vent oversizing problems for the other remaining appliance(s), and the second opening MUST commence within 12" of

See "Venting and Combustion Air Check"in this section, This fur- the ceiling.

nace MUST be vented to the outside, b. Size openings and ducts per Table 1.

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

ThisinstallationNOTapprovedin Canada

GasVent GableV_

(1)

Soffit Vent

Inlet

Air(1)

MinimumOne Inletand OneOutlet Air Supply is Required

May be in andCombination Shown

Inlet Air OpeningMust beWithin12"(300mm)of floor

OutletAir OpeningMust be Within12"(300mm)of ceiling

(1) 1 SquareInch (6cm2) per 4000 BTUH

(2) 1 Square Inch(6cm2) per 2000 BTUH

GVent _Gable

Vent

ual_ventilated Attic_

/11 _ TopAboveInsulatio_

I/ SoffitVent

I "etAi"l' Out,o,'=

II _ Air (1)

Furnace G_

_',, _ _ _ Inlet

"" Air (2) Inlet

Air(1)

Horizontal duct openings require 1 square inch of free

a 2

rea per 2,000 BTUH (1,100 mm /kW) of combined input

for all gas appliances in the space (see Table 1).

d. Vertical duct openings or openings directly communicat-

ing with the outdoors require 1 square inch of free area

e 2

p r 4,000 BTUH (550 mm /kW) for combined input of all

gas appliances in the space (see Table 1).

44001 102102

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

requires:

a. 1 sq. in of free area per 3,000 BTUH (700 mm2/kW) for

combined input of all gas appliances in the space (see

Table 1) and

b. not less than the sum of the areas of all vent connectors in

the space.

The opening shall commence within 12" of the top of the enclo-

sure. Appliances shall have clearances of at least 1" from the sides

and back and 6" from the front. The opening shall directly commu-

nicate with the outdoors or shall communicate through a vertical or

horizontal duct to the outdoors or spaces (crawl or attic) that freely

communicate with the outdoors.

4. Combination of Indoor and Outdoor Air shall have:

Indoor openings that comply with the Indoor Combus-

tion Air Method below and

Outdoor openings located as required in the Outdoor

Combustion Air Method above and

Outdoor openings sized as follows.

1) Calculate the Ratio of all Indoor Space volume divid-

ed by required volume for Indoor Combustion Air Meth-

od.

2) Outdoor opening size reduction Factor is I minus the

Ratio in 1) above.

3) Minimum size of Outdoor openings shall be the size

required in Outdoor Combustion Air Method above

multiplied by reduction Factor.

Area

BTUH MinimumFree Area Requiredfor EachOpening or Ductto Outdoors

Input TwoHorizontalDucts SingleOpening TwoVerticalDuctsor Openings RoundDuct

Rating (sq. inJ2,000BTUH) (sq. in.i3,000BTUH) (sq. inJ4,000BTUH) (sq. in./4,000 BTUH)

50,000 25 sq. in. 16.7 sq. in. 12.8sq. in. 4"

75,000 37.5 sq. in. 25 sq. in. 1828 sq. in. 5"

80,000 40 sq. in. 26.7 sq. in. 20.0 sq. in. 5"

100,000 80 sq. in. 33.3 sq. in. 25 sq. in. 6"

125,000 62.50sq. in. 41.7 sq. in. 31.25 sq. in. 7"

EXAMPLE: Determining Free Area

Furnace Water Heater

100,000 + 30,000

Furnace Water Heater

100,000 + 30,000

Indoor Combustion Air

Total Input

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

Total Input

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

Standard and Known-Air-Infiltration Rate Methods

CARBON MONOXIDE POISONING HAZARD.

Failure to supply adequate combustion air could

result in death or personal injury.

Most homes will require additional air from

outdoors for combustion and ventilation. A space

with at least 50 cubic feet per 1,000 BTUH input

rating or homes with tight construction may need

outdoor air, supplied through ducts, to

supplement air infiltration for proper combustion

and ventilation of flue gases.

Indoor air is permitted for combustion and ventilation, if the Stan-

dard or Known-Air-Infiltration Rate Method is used.

The Standard Method may be used, if the space has no less vol-

ume than 50 cubic feet per 1,000 BTUH input rating for all gas ap-

pliances installed in the space. The standard method permits

indoor air to be used for combustion and ventilation air.

The Known Air Infiltration Rate Method shall be used if the in-

filtration rate is known to be less than 0.40 air changes per hour

(ACH) and equal to or greater than 0.10 ACH. Infiltration rates

greater than 0.60 ACH shall not be used. The minimum required

volume of the space varies with the number of ACH and shall be

determined per Table 2 or Equations 1 and 2. Determine the

minimum required volume for each appliance in the space, and

add the volumes together to get the total minimum required vol-

ume for the space.

ACH

0.60

0.50

0.40

0.30

0.20

0.10

0.00

NP = Not Permitted

44001 102102

MINIMUMSPACEVOLUMEFOR100%COMBUSTIONANDVENTILATIONAIR FROMINDOORS(ft3)

30 50 50 125

1,050 1,750 1,250 3,125

1,260 2,100 1,500 3,750

1,575 2,625 1,875 2,813 4,688

2,100 3,500 2,500 3,750 6250

3,150 5250 3,750 5,625 9,375

6,300 10,500 7,500 11,250 18,750

NP NP NP NP NP

Other Than Fan-AssistedTotal

(1,000's Btuh)

1,400

1,680

2,100

2,800

4,200

8,400

Fan-assistedTotal

(1,OOO'sBtuh)

75 100

1,875 2,500

2,250 3,000

3,750

5,000

7,500

15,000

Table 2 Minimum Space Volumes were determined by using the

following equations from the National Fuel Gas Code ANSI

Z223.1/NFPA 54-2002, 8.3.3.2:

1. For other than fan-assisted appliances such as a draft

hood-equipped water heater,

21 if3 ( [ other )

Volume other - ACH 1000 Btu /hr

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

15ft3 ( [fan )

Volume fan = ACH 1000 Btu I hr

If:

[ other =combined input of all other than fan-assisted

appliances in Btu/hr

[ fan = combined input of all fan-assisted appliances in Btu/hr

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

The following requirements apply to the Standard Method and to

the Known Air Infiltration Rate Method.

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

are no closable doors between rooms.

Combining spaces on the same floor level. Each opening

shall have a free area of at least 1" 2/1,000 BTUH (2,000

mm2/kW) of the total input rating of all gas appliances in the

space, but not less than 100 in2 (0.06 m2). Once opening

shall commence within 12" (300 mm) of the ceiling and the

second opening shall commence within 12" (300 mm) of the

floor. The minimum dimension of air openings shall be at least

3" (80 mm).

Combining spaces on different floor levels. The volumes of

spaces on different floor levels shall be considered communi-

cating spaces if connected by one or more permanent open-

ings in doors or floors having a free area of at least 2" 2/1,000

Btuh (4,400 mm2/kW) of total input rating of all gas ap-

pliances.

An attic or crawl space may be considered a space that freely

communicates with the outdoors provided there are adequate

ventilation openings directly to outdoors. Openings MUST re-

main open and NOT have any means of being closed off. Ven-

tilation openings to outdoors MUST be at least I square inch

of free area per 4,000 BTU H of total input rating for all gas ap-

pliances in the space.

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

filtration should be adequate to provide air for combustion,

ventilation and dilution of flue gases. However, in buildings

with unusually tight construction, additional air MUST be pro-

vided using the methods described in section titled Outdoor

Combustion Air Method:

• Unusually tight construction is defined as Construction with:

1. Walls and ceilings exposed to the outdoors have a con-

tinuous, sealed vapor barrier. Openings are gasketed or

sealed and

2. Doors and openable windows are weather stripped and

3. Other openings are caulked or sealed. These include

joints around window and door frames, between sole

plates and floors, between wall-ceiling joints, between

wall panels, at penetrations for plumbing, electrical and

gas lines, etc.

Ventilation Air

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 tempera-

ture across the heat exchanger MUST not fall below 60 ° so that

flue gases will not condense excessively in the heat exchanger.

Excessive condensation will shorten the life of the heat exchanger

and possibly void your warranty.

Venting and Combustion Air Check

Vent Check

Vent Pipe-----_l I 7 Draft Hood

Typical Gas f _'_

Wa.erHea.eL / i i Ma.c.

I I

If flame pulls towards draft hood, this indicates sufficient

venting.

NOTE: When an existing Category I furnace is removed or re-

placed, the original venting system may no longer be sized to prop-

erly vent the attached appliances, and to make sure there is

adequate combustion air for all appliances, MAKE THE FOL-

LOWING CHECK.

[_ 44001 102102

CARBON MONOXIDE POISONING HAZARD

Failure to follow the steps outlined below for each

appliance connected to the venting system being

placed into operation, could result in carbon

monoxide poisoning or death:

The following steps shall be followed for each

appliance connected to the venting system being

placed into operation, while all other appliances

connected to the venting system are not in

operation:

1. Seal any unused openings in the venting system.

2. Inspect the venting system for proper size and horizontal

pitch, as required in the National Fuel Gas Code, ANSI

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

Propane Installation Code and these instructions. Deter-

mine that there is no blockage or restriction, 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 are

operating at maximum speed. Do not operate a summer

exhaust fan.

6. Followthe lighting instructions. Place the appliance being

inspected into operation. Adjust the thermostat so

appliance is operating continuously.

7. Test for spillage from draft hood equipped appliances at

the draft hood relief opening after 5 minutes of main burner

operation. Use the flame of a match or candle. (Figure 7)

8. If improper venting is observed, during any of the above

tests, the venting system must be corrected in

accordance with the National Fuel Gas Code, ANSI

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

Propane Installation Code.

9. After it has been determined that each appliance

connected to the venting system properly vents when

tested as outlined above, return doors, windows, exhaust

fans, fireplace dampers and any other gas-fired burning

appliance to their previous conditions of use.

For Two Pipe Installation

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 facto-

ry-built or masonry chimney. If this furnace is replacing a previous-

ly 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 out-

side.

4. Vent and Combustion Air Piping

CARBON MONOXIDE POISONING HAZARD.

Failure to properly vent this furnace could result in

death or personal injury.

Use methods described here to provide combustion

and ventilation air.

Single Pipe (N91VlP1Models)

This furnace is certified as a category [V appliance. This furnace

requires ventilation openings to provide air for proper combustion

and ventilation of flue gases. All duct or openings for supplying

44001102102

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 Combus-

tion Air Che¢l_' 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 Confined

Space Installation in the Combustion and Ventilation Air in this

manual.

Dual Certified (*9MPD Models)

This furnace is certified as a category ]V appliance. This furnace

can be installed as a direct vent furnace using outside air for corn-

bustionorthefurnacecanuseairfrominsidethestructureforcom-

bustion.TheINLETairpipeisoptional.Ifcombustionaircomes

frominsidethestructure,adequatemakeupairMUSTbeprovided

tocompensateforoxygenburned.SeeConfined Space Installa-

tion in the Combustion and Ventilation Air chapter. If combus-

tion 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 furnace.

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).

• Printing inks, paint removers, varnishes, etc.

• Hydrochloric acid.

• Sulfuric Acid.

• Solvent cements and glues.

• Antistatic fabric softeners for clothes dryers.

• Masonry acid washing materials.

Vent and Combustion Air Piping Guidelines

3) ABS to PVC transition joints REQUIRE a special sol-

vent cement that meets the requirements of ASTM D3138.

4) Refer to ASTM D2855 for general procedure to use for

cementing plastic pipe and fittings.

NOTE: In order to create a seal that allows future removal of pipe,

RTV sealant MUST be used on the inlet pipe where it joins to the

furnace.

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. Furnace shall be installed so as to prevent the accumulation

of condensate.

5. 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 Speciallnstruction ForHorizontal

Vents).

6. The vertical vent pipe MUST be supported so that no weight

is allowed to rest on the combustion blower.

7. Exhaust vent piping or air inlet piping diameter MUST NOT

be reduced.

8. 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.

9. 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.

10. 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.

11. All vertical pipe runs MUST be supported every six feet

where accessible.

This furnace is approved for venting with Schedule 40 PVC,

CPVC, ABS, Cellular Core pipe fittings and SDR-26 PVC.

Applicable ASTM Standards for Vent Materials

Cell

Sch. 40 SDR Solv.

Core Fittings Primer

Materials Pipe Pipe Pipe Cement

D2468

ABS D1527 F628 &-- D2235

D2661

D2466

PVC D1785 D2241 F891 & F656 D2564

D2665

CPVC F441 F442 -- F438 -- F493

ABS to .......... D3138

PVC

NOTE: 1) In Canada, all pipe, fittings &cements must conform to

applicable CSA standards or to local codes having jurisdiction.

2) Only use solvent cements that are marked for use with

the specific ventinq, material.

12.

13.

The minimum pipe run length is 2'.

The piping can be run in the same chase or adjacent to sup-

ply or vent pipe for water supply or waste plumbing. It can

also be run in the 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 adjacent surfaces would exceed 140 ° F.

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

atmospheric pressure zone as the combustion air inlet.

15. 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 8 & Figure 9

are maintained.

44001 102102

16.Furnaceapplicationswithverticalventsrequiringventdi-

ameterincreaserfittingsmust haveincreaserfittings

installedinverticalportionofthe vent. Condensate will be

trapped in the vent if the vent diameter is increased prior to

having an elbow turned upward. This could cause nuisance

tripping of the pressure switch.

Combustion Air and Vent Piping Insulation

Guidelines

NOTE: Use closed cell, neoprene insulation or equivalent. If Fiber-

glass or equivalent insulation is used it must have a vapor barrier.

Use Rvalues of 7 upto 10', R-11 if exposure exceeds 10'. If Fiber-

glass insulation is used, exterior to the structure, the pipe MUST

be boxed in and sealed against moisture.

1. 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.

2. 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.

3. Insulate combustion air inlet piping when run in warm, hu-

mid spaces.

Sizing Combustion Air and Vent Pipe

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 oroutlet 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 expected

snow levels. The elbow inside the furnace on the *9MPD IS NOT

included in the count.

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 Furnace

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.

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

shown in the tables but not smaller diameters than shown.

For "Concentric Termination Kit" Venting table, see

"Section 5" in this manual.

Vent Termination Clearances

CARBON MONOXIDE POISONING.

Failure to properly vent this furnace could result in

death or personal injury.

Inlet and outlet pipes may NOT be vented directly

above each other.

1. Determine termination locations based on clearances spe-

cified in following steps and as shown in Figure 8, Figure 9,

Figure 21, through Figure 29.

For "Concentric Termination Kit"clearances, see Figure 30,

thru Figure 34 in "Section 5"in this manual.

2. For Single Pipe Installation, models N9MP1 or *9MPD, refer

to Figure 9 for vent termination clearances.

3. For Direct Vent Installation, models N9MP2 or*9MPD, refer

to Figure 8 for vent termination clearances.

44001 102102 E_

[_ AIR SUPPLY INLET D AREA WHERE TERMINAL IS NOT PERMITED

Item Clearance Description

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

anticipated snow level

B Clearance to a window or door that may be opened

Clearance to a permanently closed window

Vertical clearance to a ventilated soffit located above the *

terminal within a horizontal distance of 2' (61cm) from the

centedine of the terminal

Clearance to an unventilated soffit *

Clearance to an outside corner

Clearance to an inside comer

Clearance to each side of the centedine extended above

eleclrical meter or gas service regulator assembly

Clearance to service regulator vent outlet

Clearance to non-mechanical air supply inlet to building or

the combustion air inlet to any other appliance

Canadian Installation (1)

12" (30cm)#

6" (15 cm) for appliances _< 10,000 BTUH (3kW), 12" (30

cm) for appliances > 10,000 Btuh (3 kW) and _<100,000 Btuh

(30 kW), 36" (91 cm) for appliances > 100,000 Btub (30 kW)

3' (91 cm) within 15' (4.5 m) above the meter/regulator

assembly

3' (91 cm)

6" (15cm)forappliances_<10,OOOBTUH(3kW),g" (23cm)

for appliances> 10,000Btuh (3kW) and _<100,000Btuh(30

kW) and _<50,000 Btuh(15kW), 12" (30 cm) for appliances

> 50,000Btuh(15kW)

K Clearance to a mechanical air supply inlet 6' (1.83 m)

L Clearance under a veranda, porch, deck, or balcony 12" (30 cm) +

M Clearance to each side of the centedine extended above or 12" (30 cm)

below vent terminal of the furnace to a dryer or water heater

vent, or other appliance's direct vent intake or exhaust.

N Clearance from a plumbing vent stack 3' (91 cm)

O Clearance above a paved sidewalk or paved driveway located 7' (2.13 m)

on public property.

(1.) In accordance with the current CSA B149.1, Natural Gas and Propane Installation Code

(2,) In accordance with the current ANSI Z223.1/NFPA 54, National Fuel Gas Cede

# 18" (46 cm) above roof surface

+ Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides benealh the floor.

U.S. Installation (2)

12" (30 cm)

6" (15 cm) for appliances _< 10,000 BTUH (3kW), 0" (23 cm)

for appliances > 10,000 Btuh (3 kW) and _<50,000 Btuh (15

kW), 12" (30 cm) for appliances > 50,000 Btuh (15 kW)

3' (91 cm) within 15' (4.5 m) above the meter/regulator

assembly

6" (15cm)forappliances_<10,OOOBTUH(3kW),9" (23cm)

for appliances>10,000Btuh(3 kW)and _<50,000Btub(15

kW),12" (30 cm) for appliances> 50,000Btuh (15kW)

3' (91 cm) above if within 10' (3m) horizontally

12" (30 cm)

3' (91 cm)

7' (2,13 m)

For dearances not specified in AN SI Z223.1/N FPA 54 or C SA B149,1, clearances shall be in accordance with local installation codes and the requirements of the gas supplier and the manufacture's installatio

instructions.

A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and serves both dwellings.

Notes:

1, The vent for this appliance shall not terminate

a. Over public walkways; or

b. Near soffit vents or crawl space vents or other areas where condensate or vapor could create a nusiance or hazard or property damage; or

c. Where condensate vapor could cause damage or could be detrimental to the operation of regulators, relief valves, or other equipment.

2. When locating vent terminations, consideration must be given to prevailing winds, location, and other conditions which may cause recirculation of the combustiob products of adjacent vents.

Recirculation can cause poor combustion, inlet condensate problems, and accelerated corrosion of the heat exchangers.

[_ 440O1102102

_E "I" 1"I 25-24-65-2

[_ VENT TERMINAL _ AIR SUPPLY INLET _ AREA WHERE TERMINAL IS NOT PERMITED

Item Clearance Descriptions

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

anticipated snow level

B Clearance to a window or door that may be opened

Canadian Installation (1)

12" (30cm)#

6" (15 cm) for appliances _< 10,000 BTUH (3kW), 12" (30

cm) for appliances >10,000 Btuh (3 kW) and _<100,000 Btuh

(30 kW), 36" (01 cm) for appliances >100,000 Btub (30 kW)

C Clearance to a permanently closed window *

D Vertical clearance to a ventilated soffit located above the *

terminal within a horizontal distance of 2' (61cm) from the

centedine of the terminal

E Clearance to an unventilated soffit *

F Clearance to an outside corner *

G Clearance to an inside comer *

H Clearance to each side of the centedine extended above

electrical meter or gas service regulator assembly

I Clearance to service regulator vent outlet

J Clearance to non-mechanical air supply inlet to building or

the combustion air inlet to any other appliance

K Clearance to a mechanical air supply inlet

L Clearance under a veranda, porch, deck, or balcony

M Clearance to each side of the centedine extended above or *

below vent terminal of the furnace to a dryer or water heater

vent, or other appliance's direct vent intake or exhaust.

N Clearance from a plumbing vent stack

O Clearance above a paved sidewalk or paved driveway located

on public property.

3' (01 cm) within 15' (4.5 m) above the meter/regulator

assembly

3' (01 cm)

fi" (15cm)forappliances_<10,OOOBTUH(3kW),12" (30

cm) for appliances> 10,000 Btub(3kW) and _<100,000Btuh

(30 kW),36" (91 cm) for appliances> 100,000Btuh(30 kW)

6' (1.83m)

12" (30 cm) +

3' (91 cm)

7' (2.13 m)

U.S. Installation (2)

12" (30 cm)

4' (1.2 m) below or to the side of the opening. 1' (30 cm)

above the opening.

3' (91 cm) within 15' (4.fi m) above the meter/regulator

assembly

4' (1.2 m) below or to the side of opening: 1' (30 cm) above

opening.

3' (01 cm) above if within 10' (3m) horizontally

3' (91 cm)

7' (2.13 m)

(1.) In accordance with the current CSA B149.1, Natural Gas and Propane Installation Code

(2.) In accordance with the current ANSI Z223.1/NFPA fi4, Nafional Fuel Gas Code

#18" (46 cm) above roof surface

+ Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor.

For clearances not specified in ANSI Z223.1/NFPA 54 or CSA B149.1, clearances shall be in accordance with local installation codes and the requirements of the gas supplier and the manufacture's

installation instructions.

A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and serves both dwellings.

Notes:

1. The vent for this appliance shall not terminate

a. Over punic walkways; or

b. Near soffit vents or crawl space vents or other areas where condensate or vapor could create a nusiance or hazard or property damage; or

c. Wherec_ndensateva__rc_u_dcausedamage_rcou_dbedetrimentaIt_the_perafi_n_fregu_at_rs_re_iefvaIves__r_there_ui_ment_

2. When locating vent terminations, consideration must be given to prevailing winds, location, and other conditions which may cause recirculation of the combusfiob products of adjacent vents.

Recirculafion can cause poor combustion, inlet condensate problems, and accelerated corrosion of the heat exchangers.

44001 102102 E_I

CondensateDrainTrap

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 fit-

ting. 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 con-

nected 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 downstream

of the blower. Note that the condensate trap can also be primed by

pouring water into the 1/2" drain hose. Remove the1/2 " ID drain

hose from either the gutter or the white PVC Tee Trap. Using a fun-

nel pour eight (8) ounces of water into 1/2" ID drain hose.Water will

flow through the drain hose and into the condensate drain trap.

This will prime both the vent and the transition sides of the trap. Re-

connect the 1/2, ID drain hose to the original component, either the

gutter or the PVC Tee 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 (nominal

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 toward

the drain. 1/4" per foot is recommended. Installation of an overflow

line is recommended when the 1/4" per foot slope to the conden-

sate drain cannot be maintained. See Figure 19 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

Failure to do so may result in burst water pipes,

serious property damage.

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.

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.

2. 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 recom-

mended that an auxiliary safety switch be installed to pre-

vent 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 dueto 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 opera-

tion or damage to the equipment. If the the furnace environment

has the potential of freezing, the drain trap and drain line must be

protected. Use 3 to 6 watt per foot at 11 5 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 102102

............................= ;;;;;;;;;;;;;===== ; ==========_i_!ii ii !1 Upflow Installations Top vent

On Some Models

ONLY

Single Pressure Switch

VentDrain

& Clamps

(Optional)

Dual Pressure Switch Detail

Drain Tube

Black Rubber

l/z" ID & Clamps

Drain Tube

Corrugate(

&Clamps

Drain Connector Black PVC

3/4" PVC X 1/2" CPVC

(Loose parts bag)

Casing Grommet

S/8"ID

(Looseparts bag)

Relief Tube

Black Rubber

3/16" ID

Street Elbow

1/2" CPVC

(Loose parts bag)

Drain Line Vent Tee 3/4" PVC or

1/2" CPVC (Field supplied) Drain Tube BlackRubber /8 ID& Clamps,

Cut lengthto fit (Loose partsbag) 25-24-80

Upflow Installations Top Vent (SeeFigure10)

Remove plug from the side of the furnace casing where Drain Tu be

will exit.

Install casing grommet (black rubber 5/8" ID grommet - in loose

parts bag)

Install the 1/2" CPVC street elbow on discharge of Trap

Install the black PVC tube connector (3/4" PVC x 1/2" CPVC from

loose parts bag) as shown in the illustration above.

Cut the black Drain Tube (5/8" ID - in loose parts bag) to length to

fit between Trap and tube connector through grommet.

Clamp both ends of the Drain Tube using clamps provided.

Glue the CPVC street elbow to the Trap using appropriate cleaner

and solvent cement.

Connect the Tee trap and the main drain line exiting the casing as

shown Figure 19.

Note: It is recommended that all PVC piping and fitting connec-

tions be fit up and inspected before final cementing. Trap must be

primed before operation. Verify all condensate drain connec-

tions are securely clamped. A coupling and clamps (in loose part

bag) may be installed as shown for future servicing of the vent sys-

tem.

NOTE: "PVC" is used as a generic term. Pipe and fitting materials used must be acceptable to the local code officials having

jurisdiction.

44001 102102 E_

UpflowInstallationsVentthru LeftSide

Plastic Cap

Yellow or black

Coupling & Clamps

VentDrain Either:ThePVC

&Clamps Drain Teeor afield

supplied2" PVC Tee

Dual Pressure Switch Detail

Tee Trap White PVC

(loose parts bag)

Drain Tube

Black Rubber

1/2" ID & Clam

DrainConnector Black PVC

3/4"PVCX 1/2"CPVC

(Looseparts bag)

Drain Tube

Corrugated

s/8" ID &Clamps

Casing Grommet

Black Rubber

s/8"ID

(Loose parts bag)

2" PVCCoupling

On SomeModels

ONLY

S_lt_llchPressure

o o

3/16"IDRubberTube

SIDE VIEW

/_ Rotatedownward

/_5° to10°

NOT

be angled5° to 10° also.

DrainLineVentTee3/4"PVCor 1/2"CPVC(Fieldsupplied)

Upflow Installations Vent thru Left Side (SeeFigure11)

Remove Drain Tee from inducer discharge and remove black

Drain Tube (1/2" ID) from bottom of Drain Tee. (*9MPD models

only)

Install Vent Pipe grommet in side of casing.

Cut an appropriate length of 2" PVC pipe long enough to exit the

cabinet and connect the vent drain to either:

• A standard field supplied 2" PVC tee (N9MP1 models), or

• A 2" PVC coupling fastened onto the Drain Tee (*9MPD mod-

els)

Install Tee trap into bottom of tee.

Install the 112" CPVC street elbow on discharge of Trap

Install the black PVC drain connector (3/4" PVC x 1/2" CPVC from

loose parts bag) as shown in the illustration above.

25-24-81

Cut the black Drain Tube (5/8" ID - in loose parts bag) to length to

fit between Trap and tube connector through grommet.

Clamp both ends of the Drain Tube using clamps provided.

Glue the CPVC street elbow to the Trap using appropriate cleaner

and solvent cement.

Connect the Tee trap and the main drain line exiting the casing as

shown in Figure 19.

Note: It is recommended that all PVC piping and fitting connec-

tions be fit up and inspected before final cementing. Both the in-

ternal Trap and the external Tee Trap must be primed before

operation. Verify all condensate drain connections are securely

clamped. A coupling and clamps (in loose part bag) may be

installed as shown for future servicing of the vent system.

[_ 44001 102102

Plastic Cap

Yellow or black

VentDrain

&Clamps

DrainTube

Corrugated

sis"

SIDE VIEW

_otate downward

NOTE.TBuilt-inchannelwill

beangled 5° to10° also.

All Models Vent thru Right Side

_On SomeModels

ONLY

ReliefTube

Black Rubber

"ID

"BarbedCoupling, 1/2" OD

Either:The PVC

DrainTeeor a field

"_ingle Pressure Switch Detail

DrainLine VentTee3/4"PVC

CPVC(Field supplied)

DrainConnector Black PVC

3/4"PVC X llz" CPVC

(Looseparts bag)

Grommet

"Black RubberS_" CPVC

(Looseparts bag) 25-24-82

All Models Vent thru Right Side (SeeFigure 12)

Disconnect the black Drain Tube between the drain vent and the

Trap.

Rotate the inducer 180 ° for a right side vent after loosening the 4

inducer attachment screws. Reinstall and retighten the inducer

screws to 20" pounds torque.

Using the 1/2" OD barbed coupling in the loose parts bag connect

1 ,

together with the 2 short /2' ID elbowtubes and connect the lower

discharge port of the vent drain to the Trap. Secure all connections

with clamps.

Install the vent pipe grommet into the casing

Cut an appropriate length of 2" PVC pipe long enough to exit the

cabinet and connect the vent drain to either:

•A standard field supplied 2" PVC tee (_9MP1 models), or

• A 2" PVC coupling fastened onto the Drain Tee (_9MPD

models)

Install Tee Trap into bottom section of Tee.

Remove plug from the side of the furnace casing where Drain Tube

will exit.

44001 102102

Install casing grommet (black rubber 5/8" ID grommet -in loose

parts bag)

Install the 1/2" CPVC street elbow on discharge of Trap

3 ,

Install the black PVC tube connector ( /4' PVC x 1/2" CPVC from

loose parts bag) as shown in the illustration above

Cut the black Drain Tube (5/8" ID - in loose parts bag) to length to

fit between Trap and tube connector through grommet.

Clamp both ends of the Drain Tube using clamps provided.

Glue the CPVC street elbow to the Trap using appropriate cleaner

and solvent cement.

Connect the Tee trap and the main drain line exiting the casing as

shown in Figure 19.

Note: It is recommended that all PVC piping and fitting connec-

tions be fit up and inspected before final cementing. Both the in-

ternal Trap and the external Tee Trap must be primed before

operation. Verify all condensate drain connections are securely

clamped. A coupling and clamps (in loose part bag) may be

installed as shown for future servicing of the vent system.

Downflow Left Side Vent and Trap

Yellow or black Plastic Cap

Coupling&Clamps

(Optional)_

VentDrain

&Clamps

Either: The PVC

Drain Teeor a field

supplied 2" PVCTee

TeeTrapWhite PVC

(looseparts bag)

Elbow Tube

112"ID & Clam

(Loose Parts Bag)

Single Pressure Switch Detail

to topof

trap

DrainTube Corrugated 5/8"ID

Cut at straight section

Leaveroo_ Cut Here

2" PVCCoupling

DrainTube

Black Rubber

1/2" ID& Clamps

Dual Pressure Switch

BarbedCoupling 1/2"OD

',LooseParts Bag)

SIDE VIEW

//'_ Rotate downward

NOTE_. Bruit-in channel will

he angled 5° to 10° also.

ReliefTube

BlackRubber 3/16"ID

On SomeModels

ONL¥

INLET _ <_

Flexible Tubing Connector,

/3/16" OD (loose parts bag)

ReliefTube Extension

Black Rubber,

3/16"IDCut to fit

-- (looseparts bag)

TrapConnection

Preassemble &

insert into furnace 25-24-83

Downflow Left Side Vent and Trap (SeeFigure 13)

Remove the inducer mounting screws, rotate the inducer 180 °

and retighten the inducer screws to 20" pounds torque.

Disconnect the hoses from the Trap assembly, and remove Trap

and Trap mounting bracket from the blower compartment. Using

cover plate and gasket provided in the loose parts bag, cover the

hole from the burner compartment to the blower compartment and

secure with screws.

Move the caps to the top of the Trap and mount the Trap externally

to the left side of the unit using the 2 screws provided.

Cut the 5/8" ID corrugated hose as shown above and fasten the 90 °

bend end to the Trap and fasten the straight end to the transition

drain. Secure both connections with clamps.

Reconnect the 1/2" ID drain hose from the vent drain to the Trap

and secure with a clamp.. In some cases, additional length will be

required for this hose. Use the Black plastic 1/2" OD barbed cou-

pling and a suitable section of 1/2" ID hose to make the connection.

Secure all connections with clamps

Connect the 3/16" ID relief tube from the small port on the Trap to

the to.p_port of the transition as shown in the.picture. In some cases,

additional hose length will be needed. Use the clear plastic 3/16"

OD flexible tubing connector and a suitable length of extra /16' ID

hose to make this connection.

Install the vent pipe grommet into the casing

Cut an appropriate length of 2" PVC pipe long, enough to exit the

cabinet and connect the vent drain to either:

• A standard field supplied 2" PVC tee (N9MP1), or

• A 2" PVC coupling fastened onto the Drain Tee (*9MPD

models)

Install Tee Trap into bottom section of Tee.

Connect the Tee trap and the main drain line exiting the casing as

shown in Figure 19.

Note: It is recommended that all PVC piping and fitting connec-

tions be fit up and inspected before final cementing. Both the ex-

ternal Trap and the external Tee Trap must be primed before

operation. Verify all condensate drain connections are securely

clamped. A coupling and clamps (in loose part bag) may be

installed as shown for future servicinq of the vent s_ystem.

44001 102102

Downflow Right Side Vent and Trap

Plastic Cap

Yellow or black

_otate downward

Vent Drain

&Clamps

NOTE_. Built-in channel will

be angled 5° to 10° also.

Single Pressure Switch Detail

DrainTubeCorrugated-

s/8"ID& Clamps

DrainConnector Black _-

PVC3/4"PVC X 112"CPVC

(Loosepartsbag)

Elbow Tube BlackRubber

1/2" ID& Clamps

(Loose Parts Barbed Coupling

1/2"OD

(Loose Parts Bag)

Dual Pressure Switch

Trap Connection "Clamp ears"

ointed OUT

Preassemble &

Relief Tube insert into furnace

Black Rubber 3/16" ID

DrainTube

Black Rubber

112"ID

Cut to Fit &

Coupling & Clamps

On Some

ModelsONLY 2" PVCCoupling

Either:The PVC

supplied 2" PVC Tee

TeeTrapWhite PVC

WARNING

MoveCaps to topof trap

DrainTube Black Rubber,

5/8"ID Cut to fit & Clamps

(loose partsbag)

25-24-83a

Downflow Right Side Vent and Trap (SeeFigure 14)

Remove the Drain Tee if installed.

Disconnect the hoses from the Trap assembly, and remove Trap

and Trap mounting bracket from the blower compartment. Using

cover plate and gasket provided in the loose parts bag, cover the

hole from the burner compartment to the blower compartment and

secure with screws.

Move the caps to the top of the Trap and mount the Trap externally

to the right side of the unit using the 2 screws provided.

Connect the corrugated Drain Tube from the transition box to the

Trap as shown. If an extension is required, use the black PVC tube

connector and the black 5/8" ID Drain Tube in the loose parts bag.

Cut tube to length. Secure all connections with clamps.

Connect the drain hose from the Vent Drain to the Trap. If an ex-

tension is required, use the black 1/2" OD barbed coupling, con-

nect a black 1/2" ID elbow tube and a suitable section of a 1/2" ID

drain tube to make connection from the vent drain to the trap. Se-

cure all connections with clamps.

Install the vent pipe grommet into the casing

Cut an appropriate length of 2" PVC pipe long, enough to exit the

cabinet and connect the vent drain to either:

• A standard field supplied 2" PVC tee (N9MP1 models), or

• A 2" PVC coupling fastened onto the Drain Tee (*9MPD

models)

Install Tee Trap into bottom section of Tee.

Connect the Tee trap and the main drain line exiting the casing as

shown in Figure 19.

Note: It is recommended that all PVC piping and fitting connec-

tions be fit up and inspected before final cementing. Both the ex-

ternal Trap and the external Tee Trap must be primed before

operation. Verify all condensate drain connections are securely

clamped. A coupling and clamps (in loose part bag) may be

installed as shown for future servicing of the vent system.

44001 102102 [_

Vent Drain

&Clamps

Horizontal Left Thru Top

Plastic Caps

black

Alternate Orienation

Single Pressure Switch Detail

Trap Connection

/"Clamp ears"

Pointed OUT

Preassemble &

insert into furnace

Dual Pressure Switch

Relief Tube

Black Rubber

/3/16" ID

FlexibleTubingConnector

;"OD (LoosePartsBag)

ReliefTubeExtension

"ID

Cut tp Fit (LooseParts Bag)

Field

Supplied Tee

TeeTrapWhite PVC

(loose parts bag)

Coupling &Clamps

(Optional)

Cap andClamp

Open End

Drain Tube

Black Rubber DrainTubeCorrugated /8 ID &Clamps

Cut at straight section

Leaveroomfor clamp Cut Here 25-24-84

Horizontal Left-Thru Top (SeeFigure15)

Disconnect the hoses from the Trap assembly, and remove Trap

and Trap mounting bracket from the blower compartment. Using

cover plate and gasket provided in the loose parts bag, cover the

hole from the burner compartment to the blower compartment and

secure with screws.

Mount the Trap externally to the bottom side of the unit using the

2 screws provided in the location shown.

Cut the corrugated tube as shown in the illustration above. Con-

nect the corrugated hose from the transition to the Trap. Secure

connections with clamps.

Remove the black 1/2" ID Drain Tube from the Drain Tee. Install

a yellow cap and clamp over the open drain port of the Drain Tee.

Connect the black 1/2" ID Drain Tube from the Vent Drain to the

Trap. Secure connections with clamps.

Connect the 3/16" ID relief tube to the middle port on the Trap. If an

extension is required, use the 3116" OD flexible tubing connector

and the black 3/16" ID relief tube in the loose parts bag. Cut tube

to length. Secure all connections with clamps.

Cut an appropriate length of 2" PVC pipe, long enough to exit the

cabinet and connect the vent drain to either:

• A standard field supplied 2" PVC tee (N9MP1 models), or

• A 2" PVC coupling fastened onto the Drain Tee (*9MPD

models)

Install Tee Trap into bottom section of Tee.

Connect the Tee trap and the main drain line exiting the casing as

shown in Figure 19.

Note: It is recommended that all PVC piping and fitting connec-

tions be fit up and inspected before final cementing. Both the ex-

ternal Trap and the external Tee Trap must be primed before

operation. Verify all condensate drain connections are securely

clamped. A coupling and clamps (in loose part bag) may be

installed as shown for future servicing of the vent system.

[_1 440O1102102

Horizontal Left-Side Vent

Alternate Orienation

Field

Single Pressure Switch Detail

Yellow or black

Plastic

TeeTrapWhite PVC r

(loosepartsbag) \

OnSome_--_ _

ModelsONLY

'_ Level or Sloped towards Tee

Dual Pressure Switch

3/16" ID

VentDrain

& Clamps

Elbow Tube Black Rubber

ID & Clamps

(Loose Parts Bag)

BarbedCoupling

1/2"OD (LooseParts Bag)

Drain TubeBlack Rubber

112"ID &Clamps

WARNING

Flexible Tubing

3/16" OD (Loose Parts Bag)

Relief Tube Extension

Black Rubber 3/16" ID Cut to Fit

(Loose Parts Bag)

5 _r

DrainTubeBlack, /A ID Corrugated

Cut atstra!igl_tsection

_Cut Here

Leaveroom for clamp 25-24-88

Horizontal Left-Side Vent (SeeFigure 16)

Remove the Drain Tee from the Vent Drain if installed (*9MPD

models only)

Rotate the inducer 180 ° for a side vent after loosening the 4 induc-

er attachment screws. Reinstall and retighten the inducer screws

to 20" pounds torque.

Disconnect the hoses from the Trap assembly, and remove Trap

and Trap mounting bracket from the blower compartment. Using

cover plate and gasket provided in the loose parts bag, cover the

hole from the burner compartment to the blower compartment and

secure with screws.

Mount the Trap externally to the bottom side of the unit using the

2 screws provided in the location shown.

Cut the corrugated tube as shown in the illustration above. Con-

nect the corrugated hose from the transition to the Trap. Secure

connections with clamps.

Connect the black 1/2" ID Drain Tube from the Vent Drain to the

Trap. If an extension is required, use the black 1/2" OD flexible tub-

ing connector and the black 1/2" ID Drain Tube in the loose parts

bag. Cut tube to length. Secure connections with clamps.

Connect the 3/16" ID relief tube to the middle port on the Trap. If an

extension is required, use the 3/16"OD flexible tubing connector

and the black 3/16" ID relief tube in the loose parts bag. Cut tube

to length.

Cut an appropriate length of 2" PVC pipe, fittings and extension

pipe long enough to exit the cabinet and connect the vent drain to

either:

•A standard field supplied 2" PVC tee (N9MP1 models), or

• A 2" PVC coupling fastened onto the Drain Tee (*9MPD

models)

Install Tee Trap into bottom section of Tee.

Important: The pipe to the Tee Trap must be level or sloping to-

wards the Tee Trap

Connect the Tee trap and the main drain line exiting the casing as

shown in Figure 19.

Note: It is recommended that all PVC piping and fitting connec-

tions be fit up and inspected before final cementing. Both the ex-

ternal Trap and the external Tee Trap must be primed before

operation. Verify all condensate drain connections are securely

clamped. A coupling and clamps (in loose part bag) may be

installed as shown for future servicing of the vent system.

A coupling and clamps (in loose part bag) may be installed as

shown for future servicing of the vent system.

44001 102102 [_J

Horizontal Right thru Top

Trap Connection

Preassemble&

insertintofurnace

Relief Tube Rubber Tube

3/16" ID

Single Pressure Switch Detail

Plastic Cap

Yellowor black

Alternate Orienation

Coupling &Clamps

FlexibleTubing Connector

3/16"OD (LooseParts Bag)-_.__

WARNING

Add Cap and

Clamp

Vent Drain

&Clamps

iField

Supplied Tee

_Tee Trap

\ _" White PVC

oose parts bag)

ReliefTube Extension

Black Rubber3/16" ID

Cut to Fit (Loose Parts Bag)

Drain TubeCorrugated s/8"ID & Clam

Cut at strai_ section I

Leave roomfor cla/mp" "_'" Cut Here

112"

ID& Clamps(LoosePartsBag)

,.LET

On SomeModels

ONLY

\BarbedCoupling 112"OD

(Loose PartsBag)

Drain Tube Black Rubber

112"ID& Clamps

Horizontal Right Thru Top (SeeFigure17)

Disconnect the hoses from the Trap assembly, and remove Trap

and Trap mounting bracket from the blower compartment. Using

cover plate and gasket provided in the loose parts bag, cover the

hole from the burner compartment to the blower compartment and

secure with screws.

Mount the Trap externally to the bottom side of the unit using the

2 screws provided in the location shown.

Cut the corrugated tube as shown in the illustration above. Con-

nect the corrugated hose from the transition to the Trap. Secure

connections with clamps.

Connect the black 1/2" ID Drain Tube from the Vent Drain to the

Trap. If an extension is required, use the black 1/2" OD barbed

coupling and the black 1/2" ID Drain Tube in the loose parts bag.

Cut tube to length. Secure connections with clamps.

Connect the 3/16" ID relief tube to the middle port on the Trap. If

an extension is required, use the clear 3/16" OD flexible tubing con-

25-24-89

nector and the black 3/16" ID relief tube in the loose parts bag. Cut

tube to length,

Cut an appropriate length of 2" PVC pipe, fittings and extension

pipe long enough to exit the cabinet and connect the vent drain to

a standard field supplied 2" PVC Tee

Install Tee Trap into bottom section of Tee.

Connect the Tee trap and the main drain line exiting the casing as

shown in Figure 19.

Note: It is recommended that all PVC piping and fitting connec-

tions be fit up and inspected before final cementing. Both the ex-

ternal Trap and the external Tee Trap must be primed before

operation. Verify all condensate drain connections are securely

clamped. A coupling and clamps (in loose part bag) may be

installed as shown for future servicing of the vent system.

[_ 440O1102102

HorizontalRight-SideVent

Single Pressure Switch Detail

ReliefTube BlackRubber /

3/16"ID

Dual Pressure Switch/_

DrainTubeCorrugated, s/8" ID& Clamps/ (

Cut at straight section

FlexibleTubingConnector

3/16"OD (LooseParts Bag)

Relief Tube Extension_

Black Rubber 3/16" ID

Cut to Fit (Loose Parts Bag)

Leaveroom for clamp Cut Here

Plastic Cap

Yellow or black

Vent Drain

&Clamps

Level or Sloped

towards Tee

Coupling &Clamps

ptional)

Field

j Supplied Tee

J'/ TeeTrap

_WhitePVC

(Iooseparts bag)

Elbow Tube

Black Rubber

112"ID&Clamps

(Loose Parts Bag)

On SomeModels

ONLY

INLET <_

Alternate Orienation

DrainTube Coupling 1/2" OD

BlackRubber

1/2"ID& Clamps (LooseParts Bag) 25-24-84c

Horizontal Right Side Vent (SeeFigure 18)

Disconnect Drain Tee if installed (*9MPD models only)

Disconnect the hoses from the Trap assembly, and remove Trap

and Trap mounting bracket from the blower compartment. Using

cover plate and gasket provided in the loose parts bag, cover the

hole from the burner compartment to the blower compartment and

secure with screws.

Mount the Trap externally to the bottom side of the unit using the

2 screws provided in the location shown.

Cut the corrugated tube as shown in the illustration above. Con-

nect the corrugated hose from the transition to the Trap. Secure

connections with clamps.

Connect the black 1/2" ID Drain Tube from the Vent Drain to the

Trap. If an extension is required, use the 1/2" OD barbed coupling

and the black 1/2" ID Drain Tube in the loose parts bag. Cut tube

to length. Secure connections with clamps.

Connect the 3/16" ID relief tube to the middle port on the Trap. If

an extension is required, use the clear 3/16"OD splice connector

and the black 3/16" ID relief tube in the loose parts bag. Cut tube

to length.

Cut an appropriate length of 2" PVC pipe, fittings and extension

pipe long enough to exit the cabinet and connect the vent drain to

either:

•A standard field supplied 2" PVC tee (N9MP1 models), or

• A 2" PVC coupling fastened onto the Drain Tee (*9MPD

models)

Install Tee Trap into bottom section of Tee.

Important: The pipe to the Tee Trap must be level or sloping to-

wards the Tee Trap

Connect the Tee trap and the main drain line exiting the casing as

shown in Figure 19.

Note: It is recommended that all PVC piping and fitting connec-

tions be fit up and inspected before final cementing. Both the ex-

ternal Trap and the external Tee Trap must be primed before

operation. Verify all condensate drain connections are securely

clamped. A coupling and clamps (in loose part bag) may be

installed as shown for future servicing of the vent system.

44001 102102 [_

iiiiiiiiiiiiiiiiiiiiiiiiiiii!¸I¸!!!ii¸!;::i¸I¸I¸I;I¸!!i!i!!!i¸i¸iJiii ii!!iil ii ¸iiiiiiiiiiiiii

Connecting Tee Trap to Condensate

Trap and Main Drain Line

Open Tee

Evaporator

Coil

Drain Line

(Optional)

Main

Drain

Line

Condensate

Trap 25-24-85

The Tee Trap must be connected to the main condensate drain

line as conceptually shown above. Different installations may

require slightly different orientations. The following steps apply

to all installations.

2. The Tee Trap should be installed as close to the side or top

of the furnace as practical. Minimize the distance between

the inducer and the Tee Trap as much as possible.

An open tee is to be used at the Tee Trap discharge. The top

end of the tee should be open to the atmosphere to elimi-

nate potential air lock problems.

The drain line from the Tee Trap is to be connected to the

furnace condensate trap drain line as shown above.

5. Condensate drain lines from a cooling coil may be con-

nected downstream of the connection point of the Tee Trap

and Furnace Condensate Trap.

Important: Prime both traps with water before operation.

Failure to prime the traps may result in discharge of flue gases

from the condensate drain line and open tee for a period of

time, and may result in temporary lockout of the furnace upon

start up. Main drain line construction is left to the discretion of

the installer. It may be made of either ridged pipe or flexible

tube. Tube ID should NOT be less than 1/2%

Connecting Vent and Combustion Air Piping

CARBON MONOXIDE POISONING HAZARD

Failure to properly seal vent piping could result in

death or personal injury.

Cement or mechanically seal all joints, fittings, etc.

to prevent leakage of flue gases.

Refer to Figure 10 through Figure 18 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 cou piing and gasket ca n be installed to the top

panel to the alternate air intake locations on either the left or right

side panels of the furnace.

For downflow installation, the air intake coupling and gasket must

be installed to the alternate air intake location on either the left or

right side panels. Install the 3" hole plug from the furnace accesso-

ry bag and relocate to the open hole in the furnace 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 into the

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

tion position, the vent pipe grommet will be installed to the top pan-

el or to the alternate location on the side panels. If needed, remove

the 3" hole plug from the loose parts bag and install in the open

hole in the furnace panel. (See Figure 10 or Figure 19)

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 20)

Some installations require the vent fitting to be installed with

a 5 ° to 10 ° downward slope. (See Figure 10 thru Figure 19)

[_ 44001 102102

Proper Sealing Procedure for

Combustion Blower

RubberCoupling _Vent Pipe

&Clamps___ _ _([op Panel Exit)

VentPiDe _ N°TE: The 90 ° elbow is approved

r for use inside the furnace ONLY.

90° Elbow &Clamps

Combustion

Blower

Tee

Pipe (Side Panel

Exit) SIDE VIEW

wnward

NOTE:Built-in channel will beangled 5° to 10° also. 25-24-14a

Joining Pipe and Fittings

FIRE HAZARD

Failure to do so could cause death, personal injury

and/or property damage.

Observe all cautions and warnings printed on

material containers

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 e_es.

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 American

National Standard Institute and American Society for Testing and

Materials (ANSI/ASTM) standards.

Pipe and Fittings: PVC - Ref ASTM D1785, D2241, D2466,

D2665 & D3311

ABS - ASTM D2661, D1527 & F-628

Cellular Core - F-891

•PVC Primer and 5olvent Cement -Ref ASTM D2564

• Procedure for Cementing Joints - Ref ASTM D2855

• Procedure for PVC to AB5 transition - Ref ASTM D3138

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 cement

may be used on all other joints.

CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in death or

personal injury.

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. Poor joints may lead to

disconnected or leaking vent pipe joints allowing

carbon monoxide to enter the living space.

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.

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 ap-

ply a heavy coat of cement to the pipe end and insert pipe

into fittings with a slight twisting movement until it bottoms

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 climate

(sustained temperatures below 0°F), increase the minimum dis-

tance between vent pipe and air intake from 8" to 18".

CARBON MONOXIDE POISONING HAZARD.

Failure to properly vent this furnace could result

in death or personal injury.

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.

Install all couplings, nipples and elbows using proper proce-

dures for Joining Pipe and Fittings and maintain spacing

between vent and combustion air piping as indicated in

Figure 21 through Figure 29.

44001 102102 [_

SidewallTermination12"or More

.............................................................................AboveSnowLevelor GradeLevel

MIN. _ "18" Minimum for cold climates

1(substained below 0 ° F)

EL 25-00-05F

SNOW LEVEL

Horizontal Termination

1, Cut two holes. 21/2" for 2" pipe, 3" for 21/2" pipe, or 31/2" 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.

2. Check hole sizes by making sure it is smaller than 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 combustion

air piping as indicated in Figure 21 and Figure 22.

A metal shield is recommended 18" x 18" min. or 18" min. diameter

a round the vent termination at the exterior wall to protect the house

exterior materials from flue product or condensation (freezing)

damage.

Using ExteriorRisers

1. Install elbows and pipe to form riser as shown in Figure 22.

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 resistant

closed cell foam insulation or Fiberglass insulation if boxed

in and sealed against moisture.

Sidewall Termination with Exterior

Risers to Get Above Snow Level or

Grade Level

8" *

MIN. "18" Minimum for cold climates

20' (substained below 0° F)

MIN.

Vertical Termination

1. Figure 23 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 23 are maintained. Hori-

zontal section before the termination elbow can be ex-

tended on the inlet air to provide necessary clearance.

Rooftop Termination

A =12"Aboveroofor snowaccumulationlevel

B=8" Min.,20'Maximum,exceptinareaswithextremecoldtemperatures

(sustainedbelow0°% the18"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 before

attaching the vent terminal.

Multi Vent Termination Clearances

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 24,

Figure 25, Figure 26, Figure 27, Figure 28 and Figure 29, but

the next vent termination must be at least 36" away from first 2 ter-

minations. It is important that vent terminations be made as shown

to avoid recirculation of flue gases.

g_ii_ I c°ncentric Vent and c°mbusti°n-Air Roof Termination

12" Min. Grade or_

Snow Level

Combustion

Air

25-00-04F Dimension "A"is touching or 2"maximumseparation.

44001 102102

Concentric Vent and Combustion-

Air Sidewall Termination

Exhaust

25-22-02d

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

1 Sidewall Inlet Vent andExhaust-AirTermination

8" Min.

18" Min. for

Cold Climates

(Sustained Below 0oF)

12" Min. Grade or

Snow Level

__Dimension "A" is touchin_ or 2" maximum separation.

Sidewall Inlet Vent and Exhaust-Air

Termination with Exterior Risers

/// 18" Min. for Cold Climates

(Sustained Below 0° F) 8" Min.

Gradeor

Snow Level

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

Rooftop Inlet Vent and Exhaust-

Air Termination

18" Min. for Cold Climates F \ _

(SustainedBelow 0°F)

8"Min.

20'Max.

12" Min.

Level

Exhaust

25-22-43

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Recommended Alternate

Installation for Sustained

.............................................................................Cold Weather (-O° F&below)

_ OVERHANG

EXHAU_ k12_ MIN.

INLET

12" MIN.Ground Level

_ f OR Snow Level

FRONT VIEW

Same Joist

Space

SIDE VIEW

12"

25-23-73

44001 102102 [_

5. Concentric Termination

Vent Termination Clearances

CARBON MONOXIDE POISONING, FIRE AND

EXPLOSION HAZARD

Failure to properly vent this furnace could 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 8,

Figure 30 through Figure 35.

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.

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 FuelGas Codetakes precedence

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 [V gas-fired

condensing furnaces. The NAHA001CV kit can be used for 3" di-

ameter pipe systems. The NAHA002CV kit can be used for 2" di-

ameter pipe system. Refer to Table 5 or Table 6 for the correct

pipe size for the furnace. Both the combustion air inlet and the ex-

haust 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 termina-

tion. Vertical termination is preferred. Field supplied pipe and fit-

tings are required to complete the installation.

Kit Components

KitContents:

3" Rain Cap or 2" RainCap

3 Diameter SDR-26 Pipe, 19 /2 Long or

.1.

4Diameter SDR-26 Pipe, 37 /8 Long,

t_ 5 i_

2Diameter SDR-26 Pipe, 31 /8 Long or

21/2"Diameter SDR-26 Pipe, 24" Long,

3" YConcentric Fittingor 2" YConcentric Fitting

Nominal3" or4"Dia.

,/. SDR-26Pipe

AlL

• 2 or 2112" Dia.

YConcentricFitting SDR-26Pipe

2" or 3" Dia.

Rain Cap

25-22-03

Vertical & Horizontal Termination

Determine the pipe diameters required for the installation

from Table 5 or Table 6 and Figure 32.

Determine the best location for the termination kit. See

Figure 31 for vertical termination or Figure 35 for horizon-

tal termination• Roof termination is preferred since it is less

susceptible to damage, has reduced intake contaminants

and less visible vent vapor• For side wall termination, con-

sideration should be given to: 1) possible damage from the

vapors to plants/shrubs, other equipment and building ma-

terials, 2) possible damage to the terminal from foreign ob-

jects, 3) wind effects that may cause recirculation of flue

products, debris or light snow and 4) visible vent vapor•

Concentric Vent Roof Installation

Vent

Combustion

R°°f2i'r°"

Flashing _.. r

(FieldSupplied)

Vent _ i

Maintain12"min.clearanceabove

highestanticipatedsnowlevel.Max.

_24" aboveroof.

(FieldSupplied)

45° Elbow

Combustion

Note: 25-22-02

Support must be field installed to secure termination kit to structure•

3. Cut one 5" diameter hole through the structure for the

NAHAOOICV Kit or one 4" diameter hole for the

NAHAOO2CV 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 32)

[_ 44001 102102

ConcentricVentDimensional

Drawing

PVC,ntake,C, s 0

._ A

Model A* B C

381/8 3 41/2

33_/8 2 31/2

11/2"

NAHAOO1CV

NAHAOO2CV

25-22-03

D _*

211/8

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

Concentric Termination Kit

NAHA001CV &NAHA002CV Venting

Table for *9MPD Models

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

NAHA002CV -35' & (4) 90 ° elbows with 2" PVC pipe 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.

5. 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 theY

Concentric fitting to the 4" diameter kit pipe. (See

Figure 33) B) Cement the 3" rain cap to the 21/2" diameter

kit part. (See Figure 33) 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 33)

Concentric Termination Kit

NAHAOOICV &NAHAOO2CV Venting

Table for NDMP2 Models

50,000 & 80,000 Btuh Furnaces

NAHAOO2CV - 35' & (4) 90 ° elbows with 2" PVC pipe or

NAHAOOICV - 65' & (4) 90 ° elbows with 3" PVC pipe

75,000 Btuh Furnace

NAHAOO2CV - 20' & (2) 90 ° elbows with 2" PVC pipe or

NAHAOO2CV - 35' & (4) 90 ° elbows with 2" PVC pipe &

Long Vent Kit (See Tech. Manual) 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,

If assembly needs to be extended to meet height or side wall thick-

ness requirement, the two pipes supplied in the kit may be re-

placed 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 32)

Do not use field supplied couplings to extend the pipes.

Airflow restriction will occur and the furnace pressure switch

may cause intermittent operation.

25-22-02

Rain Cap to Vent Pipe Assembly

Drill clearance hole in rain

capandp_t pipe.

Stainless steel screw

(Fieldsupplied)

CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in death

or personal injury.

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.

44001 102102 E_

CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in death

or personal injury.

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.

6, 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 accumulate inside the

pipe assembly when installing through the structure's hole.

7. Secure the assembly tothe structure as shown in Figure 31

or Figure 35 using field supplied metal strapping or equiva-

lent material.

NOTE: Ensure the termination height is above the roof sur-

face or anticipated snow level as shown in Figure 31 for

vertical termination. Ensure the termination location clear-

ance dimensions are as shown in Figure 34 and Figure 35

for horizontal termination.

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 34 or

Figure 35 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.

Concentric Vent and Combustion-

Air Side Termination

Roof Overhang

Maintain12" clearanceabove highestantici-

patedsnow levelor gradewhichever is greater.

25-22-02

Concentric Vent Sidewall

Attachment

Vent

Combustion

Air

Note:

Strap

(Field Supplied) Y///_ Combustion

S ,

1" max.

45° Elbow _-:_c_-:

(FieldSupplied) ...... 25-22-02

Securing strap must be field installed to prevent movement of termination kit in side wall.

6. Gas Supply and Piping

CARBON MONOXIDE POISONING, FIRE AND

EXPLOSION HAZARD.

Failure to follow these instructions could result in

death, personal injury and/or property damage.

Models designated for Natural Gas are to be used

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: In the state of Massachusetts:

with Natural Gas ONLY, unless properly converted to

use with LP gas.

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 rating

1. Gas supply connectors MUST be performed by a licensed

plumber or gas fitter.

2. When flexible connectors are used, the maximum length

shall not exceed 36" (915 mm).

3. When lever handle type manual equipment shut off valves

are used, they shall be T-handle valves.

4. The use of copper tubing for gas piping is NOT approved by

the state of Massachusetts.

plate.

Gas Piping Requirements

NOTE: The gas supply line must be installed bya qualified service

technician in accordance with all building codes.

NOTE: Refer to Figure 36 or Figure 37 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.

44001 102102

FIRE OR EXPLOSION HAZARD

Failure to properly install metal gas connector

could result in death, personal injury and/or

property damage.

A flexible corrugated metal gas connector must be

properly installed, shall not extend through the side

of the furnace,and shall not be used inside the

furnace.

Black iron pipe shall be installed at the furnace gas

control valve and extend a minimum of 2" outside

furnace casing.

Use black iron or steel pipe and fittings or other pipe ap-

proved by local code.

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.

Use two pipe wrenches when making connections to pre-

vent gas valve from turning•

Install a manual shut-off valve external to furnace casing

and tighten all joints securely•

If local codes allow the use of flexible gas appliance connec-

tors, always use a new, listed connector• Do not use a con-

nector which has previously serviced another gas

appliance•

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Typical Gas Pipingfor Upflow

Drip Leg and Union, Union* should be outside the Gas Pipe Grommet (Single Pipe)

cabinet•Manualshut-off valveMUST be upstreamof vM_;eUa,shut-off /

dripleg, union, and furnace. _ "--......_ _,_ _ __

Use elbows and 3" pipenipple to connectvalveto _ _ _._ _._

pipingwhen using rightside gas pipeentry,_ _ _ _, _ _ _

'n_P_,Pe _ _ _ .._ hMOdee_

4 :L, s.,c

bUcn_o nem:fYcf:a irn Stcaellse.dinside the ca binet when n ecessa ry _ "_d _

•Alterative

installation

may

or2

25-24-86

iiiiiiiiiiiiiiiiiiii !i!ii i ! i i i i i i i i i i i i i i i i iiii:iiT pica,GasPipingforDownf,ow

Use elbows and 3" pipe nipple to connect valve

to piping when using left side gas pipe entry.

LPLow pressure

switchREQUIRED. Manualshut-

valve

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

because of clearances.

Gas Pipe Grommet

(Single Pipe)

44001 102102

25-25-46a

Additional LP Connection Requirements

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

age tank and check all connections from tank to furnace.

2. If copper tubing is used, it MUST complywith limitation set in

National Fuel Gas Code or CGA codes.

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

LP Conversion

An accessory kit shall be used to convert to propane gas use, see

the furnace rating plate for the LP conversion accessory kit part

number.

Do NOT allow minimum gas supply pressure to vary down-

ward. Doing so will decrease input to furnace. Refer to

Table 7, Table 8, Table 9, Table 10 and Table 11 for nor-

mal gas supply and manifold pressures.

Gas Supply Pressure

Gas supply pressure should be within minimum and maximum val-

ues listed on rating plate. Pressures are usually set by gas suppli-

ers.

Manifold Gas Pressure Adjustment

NOTE: Make adjustment to manifold pressure with burners oper-

ating.

FIRE, EXPLOSION, UNIT DAMAGE HAZARD.

Failure to follow this warning can result in

death, property damage and/or personal

injury.

An LP conversion accessory kit is required

when operating the furnace with LP gas.

Alternate BTUHInput Ratings(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 7, by

changing the main burner orifices. Changing of burner orifices

MUST be done by a qualified service technician. See section on

changing orifices or following page.

IAlternate Input Ratings, USA ONLY.

BTUH

Standard

Rating

50,000

75,000

100,000

125,000

BTUH

Alternate

Rating

40,000

60,000

80,000

100,000

Natural

Gas

Orifice*

#44

Gas

Orifice**

#55

* See Table 10 for High Altitude.

** See Table 11 for High Altitude

Supply Pressure

ELECTRICAL SHOCK HAZARD.

Failure to do so could result in death or personal

injury.

Turn OFF power to furnace before changing speed

taps.

Remove the burner compartment door.

With gas OFF, connect manometer to tapped opening on

gas valve. See Figure 38. Use manometer with a 0 to 15"

water column range.

Turn gas ON. Operate the furnace by using a jumper wire on

the R to W thermostat connections on the control.

Remove manifold pressure adjustment screw cover on fur-

nace gas control valve. Turn adjusting screw counterclock-

wise to decrease manifold pressure and clockwise to

increase pressure.

iiiiiiiiiiiiil;;i;¸i¸iiil ¸i!!!;;;iiiiiiil;;iiiiiii!i!!!!!!ii!iil !;

Typical Gas Control Valve Honeywell

Regulator Adjustment

Under Ca

Inlet

Pressure

Tap1/8NPT

HONEYWELL

©o bOutlet

Pressure

Tap

1/8NPT

OUTLET

25-24-98a

FIRE HAZARD

Failure to properly set input pressure could result in

death, personal injury and/or property damage.

Do NOT set input rating above that shown on rating

plate.

A 1/8" NPT plugged tapping, accessible for a test gauge II

connection, must be installed immediately upstream of the I

gas supply connection to the furnace.

Gas input to burners MUST NOT exceed the rated input

shown on rating plate.

NOTE: Adjustment screw cover MUST be replaced on gas control

valve before reading manifold pressure and operating furnace.

5. Set manifold pressure to value shown in Table 8, Table 9,

Table 10 or Table 11.

6. When the manifold pressure is properly set, replace the ad-

justment screw cover on the gas control valve.

7. Remove jumper wire from thermostat connection on the

control board. Remove manometer connection from man-

ifold pressure tap, and replace plug in gas valve.

8. Check for leaks at plug.

9. Replace the burner compartment door.

[_1 44001 102102

MANIFOLDPRESSUREAND ORIFICESIZE FORHIGHALTITUDEAPPLICATIONS

iiiiiiiiiiiiiiiiiliiiii

NATURAL GAS MANIFOLD PRESSURE (" w.c.)

.............................................................. MEAN ELEVATION FEET ABOVE SEA LEVEL

HEATING 0 to 2001 to 3001 to 4001 to 5001 to 6001 to 7001 to

VALUE 2000 3000 4000 5000 6000 7000 8000

at ALTITUDE Orifice Manifold Orifice Manifold Orifice Manifold Orifice Manifold Orifice Manifold Orifice Manifold Orifice Manifold

BTU/CU. FT. No. Pressure No. Pressure No. Pressure No. Pressure No. Pressure No. Pressure No. Pressure

700 41 3.7

725 41 3.7 41 3.4

750 41 3.5 42 3.6

775 41 3.6 42 3.6 42 3.3

800 41 3.6 42 3,7 42 3,4 42 3.1

825 41 3.7 41 3.4 42 3.5 42 3.2 42 2.9

850 41 3.5 42 3.6 42 3,3 42 3,0 42 2.8

875 41 3.6 42 3,6 42 3.4 42 3,1 42 2,8 42 2.6

900 42 3.7 42 3.4 42 3.2 42 2,9 42 2.7 42 2.5

925 41 3.7 42 3,5 42 3,3 42 3.0 42 2,8 42 2,5 44 3.3

950 41 3.5 42 3.3 42 3.1 42 2.9 42 2.6 42 2.4 44 3.1

975 42 3.7 42 3,2 42 2,9 42 2.7 42 2.5 44 3.2 45 3.6

1000 42 3.5 42 3.0 42 2.8 42 2.6 42 2.4 45 3.7 45 3.4

1050 42 3.2 42 2,7 42 2.5 44 3.3 45 3.6

1100 43 3.6 42 2,5 44 3.2 45 3.6

NOTE: Natural gas data is based on 0.60 specific gravity.

Z223.1-2002/NFPA 54-2002 or National Standard of Canada, Natural Gas And Propane Installation Code CSA B149.1-05.

Bold- indicates factory orifice size.

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii 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

HEATING VALUE

at ALTITUDE

BTU/CU. FT.

2500

Orifice Size

_!% _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_!%:;ii_i_i_i_i_i_i_i_i_i_i_i_i¸_¸_;_¸i¸_%i_¸i_¸i_¸i_¸i_¸i_iiiiiiiiiiiiiiiiii!_i_i_i!ii!ii!ii!ii!ii!ii!ii!ii!i!ii!iiiiiiiiiiiiiiiiiiiiiiiiiiii!_i_i_i!ii!ii!ii!ii!ii!ii!ii!ii!ii!ii!ii!ii!i!i

For fuels with different specific gravity consult the National Fuel Gas Code ANSI

LPG or PROPANE GAS MANIFOLD PRESSURE (" w.c.)

MEAN ELEVATION FEET ABOVE SEA LEVEL

0 to 2001 to 3001 to 4001 to 5001 to

2000 3000 4000 5000 6000

10.0 10.0 9.0 10.0 9.4

#54 #54 #54 #55 #55

6001 to 7001 to

7000 8000

8.5 10.0

#55 #56

NOTE: Propane data is based on 1.53 specific gravity. For fuels with different specific gravity consult the National Fuel Gas Code ANSI Z223.1-2002/N FPA

54-2002 or National Standard Of Canada, Natural Gas And Propane Installation Code CSA B149.1-05.

NOTE: The derating of these furnaces at 2% (Natural Gas) and 4% (Propane Gas) has been tested and design-certified by CSA.

In Canada, the input rating must be derated 5% (Natural Gas) and 10% (Propane Gas) for altitudes of 2,000 to 4,500 above sea level. Use

the 2001 to 3000 column in Table 8, Table 9, Table 10 and Table 11.

The burner orifice part nos. are as follows: Orifice #47 1011378 Orifice #48 1113201

Orifice #41 1096942 Orifice #42 1011351 Orifice #49 1113202 Orifice #54 1011376

Orifice #43 1011377 Orifice #44 1011352 Orifice #55 1011354 Orifice #56 1011355

Orifice #45 1011353 Orifice #46 1011744

44001 102102 E_

NATURAL GAS MANIFOLD PRESSURE (" w.c.)

FOR THE 80,000 BTUH MODEL AND ALTERNATE INPUT MODELS

MEAN ELEVATION FEET ABOVE SEA LEVEL

0 to 2001 to 3001 to 4001 to 5001 to

2000 3000 4000 5000 6000

Orifice Manifold Orifice Manifold Orifice Manifold Orifice Manifold Orifice Manifold

No. Pressure No. Pressure No. Pressure No. Pressure No. Pressure

HEATING

VALUE 6001 to 7001 to

at ALTITUDE 7000 8000

BTU/CU. FT, Orifice Manifold Orifice Manifold

No. Pressure No. Pressure

700 44 3,7

725 44 3.7 44 3,4

750 44 3.5 44 3.2

775 44 3,5 44 3.2 44 3,0

800 44 3.6 44 3.3 44 3.0 44 2.8

825 44 3,7 44 3.4 44 3,1 44 2.9 44 2,6

850 44 3.5 44 3.2 44 2.9 44 2.7 44 2.5

875 44 3,5 44 3,3 44 3.0 44 2.8 44 2.5 47 3.4

900 44 3,3 44 3,1 44 2.8 44 2,6 44 2.4 48 3.6

925 44 3.7 44 3.2 44 2,9 44 2.7 44 2,5 48 3.7 48 3.4

950 44 3,5 44 3,0 44 2,8 44 2.6 44 2,4 48 3.5 48 3.3

975 44 3.3 44 2.8 44 2,6 44 2.4 48 3.7 48 3.4 49 3.6

1000 44 3,2 44 2,7 44 2,5 47 3.3 48 3.5 48 3.2 49 3.4

1050 44 2.9 44 2.5 48 3.7 48 3.4 49 3.7

1100 46 3.3 45 3.7 48 3.4 49 3.7

NOTE: Natural gas data is based on 0.60 specific gravity. For fuels with different specific gravity consult the National Fuel Gas

Z223.1-2002/NFPA 54-2002 or National Standard of Canada, Natural Gas And Propane Installation Code CSA B149.1-05.

Code ANSI

Bold- indicates factory orifice size.

LPG or PROPANE GAS MANIFOLD PRESSURE (" w.c.)

................................................................................................................FOR THE 80,000 BTUH MODEL AND ALTERNATE INPUT MODELS

HEATING VALUE MEAN ELEVATION FEET ABOVE SEA LEVEL

at ALTITUDE 0 to 2001 to 3001 to 4001 to 5001 to 6001 to 7001 to

BTU/CU, FT. 2000 3000 4000 5000 6000 7000 8000

2500 10.0 8.9 8.4 10.0 10.0 10.0 10.0

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

NOTE: Propane data is based on 1.53 specific gravity. For fuels with different specific gravity consult the National Fuel Gas Code ANSI Z223.1-2002/N FPA

54-2002 or National Standard Of Canada, Natural Gas And Propane Installation Code CSA B149.1-05.

NOTE: The derating of these furnaces at 2% (Natural Gas) and 4% (Propane Gas) has been tested and design-certified by CSA.

In Canada, the input rating must be derated 5% (Natural Gas) and 10 _ (Propane Gas) for altitudes of 2,000 to 4,500 above sea level. Use

the 2001 to 3000 column in Table 8, Table 9, Table 10 and Table 11.

General Derating Rules

These furnaces may be used at full input rating when

installed at altitudes up to 2,000'. When installed above

2,000', the input must be decreased 2% (natural) or 4% (LP)

for each 1000' above sea level in the USA. In Canada, the

input rating must be derated 5% (natural) or 10% (LP) for

each 1000' above sea level. See Table 10 or Table 11 for

required high altitude input rate.

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

fice change and/or manifold pressure adjustments may be

required for the gas supplied. First consult your local gas

supplier, then refer to Table 8 for required pressure change

and/or orifice change for high altitudes.

For operation with LP gas, gas orifices MUST be changed

and manifold pressure MUST be maintained as per

Table 9. Orifices can be ordered through our distributor.

(See Fi.gure 39)

High Altitude Input Rate =

Nameplate Sea Level Input Rate x (Multiplier) [USA]

High Altitude Multiplier

Elevation

2001'-3000'

3001'-4000'

4001'-5000'

5001'-6000'

6001'-7000'

7001'-8000'

Natural Gas

0.95

0.93

0.91

0.89

0.87

0.85

LP Gas

0.90

0.86

0.82

0.78

0.74

0.70

* Based on mid-range of elevation.

4. In cases where Table 8 or Table 9 is not applicable, eg. al-

ternate input rate application, refer to Table 10 or Table 11

for required high altitude input rate.

High Altitude Air Pressure Switch

Altitudes over 4,000' may require a different air pressure switch

than the one installed at the factory. Check parts list for pressure

switch and consult [/our distributor for.part number and availability.:

[_ 44001 102102

InCanada,provincialcodesmaygoverninstallationofswitch.

Checkwithgoverningauthorities.

Changing Orifices for High Altitude

ELECTRICAL SHOCK, FIRE OR EXPLOSION

HAZARD

Failure to properly install orifices could 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.

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

Example

.oturo,0ast .oo'Secondst'imePerCubict "*°Per

BTU Content PerHour Footin Seconds Hour

1,000 3,600 48 75,000

1,O0O x 3,600 + 48 = 75,000 BTUH

3. Time how many seconds it takes the smallest dial on the gas

meter to make one complete revolution. Refer to Example.

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

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

two.

Final Check

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 39)

5. Reinstall manifold. Ensure burners do NOT bind on new ori-

fices.

11/8 " to 13/16"

Changing Orifices

Natural Gas Input Rating Check

Measure from face of orifice

to the back side of the

manifold.

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.

7. Electrical Wiring

ELECTRICALSHOCK HAZARD.

Failure to turn off power could result in death or

personal injury.

Turn OFF electrical power at fuse box or service

panel before making any electrical connections

and ensure a proper ground connection is made

before connecting line voltage.

44001 102102

FIRE OR EXPLOSION HAZARD

Failure to follow the safety warnings exactly could

result in death, personal injury, and/or property

damage.

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

commercially available soap solution made specifi-

cally for the detection of leaks to check all

connections. A fire or explosion could result

causing property damage, personal injury and/or

loss of life.

1. The furnace and the equipment shut off valve must be discon-

nected from the gas supply piping system during any pres-

sure 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

1 ,

leaks with the gas pressure less than /2' PSIG to the gas

valve.

3. The furnace must be isolated from the gas supply system by

closing the equipment shut off valve during any pressure

testing of thegas supply system at test pressure equal to or

less than 1/2' PSI (3.5 pa).

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.

6. Check for leaks at gas valve and orifice connections to the

burner manifold while the furnace is operating.

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 N FPA 70 and/or

The Canadian Electric Code CSA C22.1.

The power supply to the furnace connections must be between

104 VAC and 127 VAC during furnace operation for acceptable

performance.

Field wiring connections must be made inside the furnace connec-

tion box. A suitable strain relief should be used at the point the

wires exit the furnace casing.

Copper conductors shall be used. Line voltage wires should

conform to temperature limitation of 63 ° F (35 ° C) rise and be sized

forthe unit maximum amps stated on the rating plate. Add the full

load amps for potential field-installed accessories such as elec-

tronic air cleaners and humidifiers that would receive power from

the furnace control. The furnace control is rated for a maximum of

1.0 amps combined for EAC and HUM. Consult NEC or local

codes for proper wire and circuit sizing.

NOTE: Furnace will not have normal operation if line polarity is re-

versed. Check ALL field and control connections prior to opera-

tion.

J- Box Relocation

The j-box is installed on left side of casing. An alternate j-box

location on right side can be used.

1. Remove bag containing two hole plugs and two self tapping

screws from loose parts bag in blower compartment.

2. Remove two screws holding j-box to casing.

3. Install large hole plug from loose parts bag into the left j-box

location.

4. Clip wiretie holding j-box wires.

5. Move j-box to alternate location and attach using two self

tapping screws from bag.

6. Apply two hole plugs from bag at left j-box location.

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 of furnace control.

Set thermostat heat anticipator in accordance with the Technical

Support Manual.

Heat anticipator setting will need to be measured if 24VAC humidi-

fier is installed. Measure currentin series from R to W at the ther-

mostat. Be sure 24VAC humidifier is wired up to control. Allow

furnace to operate for 2 minutes before recording the AC amper-

age reading. Set anticipator on thermostat to recorded value.

Optional Equipment

All wiring from furnace to optional equipment MUST conform to lo-

cal 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. 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.

REDUCED FURNACELIFE HAZARD

Failure to follow caution instructions may result in

reduced furnace life.

Do NOT exceed 115V/1.0 amp. maximum current

load for both the EAC terminal and the HUM

terminal combined.

HUMIDIFIER- The HUM (115) is energized when the pressure

switch closes on a call for heat. The HUM is energized when

the inducer is enerqized.

ELECTRONIC AIR CLEANER - EAC is energized when there

is a blower speed call, except is NOT energized when blower

operates in the hard-wired continuous fan mode.

Furnace Control

The furnace 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 reset to

obtain the longest delay times while still maintaining comfort lev-

els. See "Furnace Wiring Diagram".

Electrical Connections

NOTE: Junction Box can be _//

mountedtoeithertheleftorright j

side.

:z z W

_:_, Models may

J have1or2

((_"%) 'pressure

\ _._________________d% _ switches

I TerminalBoard

NOTE: 115 VAC/BOHz/single-phase

Operating voltage range*: 127 VAC max, 104 VAC rain.

Permissible limits of voltaqe at which unit will operate satisfactorily

Furnace Control Fuse

The 24V circuit contains a 5-amp, automotive-type fuse located

on furnace control. (See Figure 41) 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.)

Control Board

BlowerOff

DelayJumper

24 VAC

HUM

DiagnosticLight

115 V

25-24-98

44001 102102

8. Ductwork and Filter

CARBON MONOXIDE POISONING HAZARD.

Failure to properly seal duct could result in death or

personal injury.

Do NOT draw return air from inside a closet or utility

room where furnace is located. Return air duct

MUST be sealed to furnace casing.

Installation

NOTE: Design and install the air distribution system to complywith

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 out-

side 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 cause condensation and shorten

the furnace life.

NOTE: Dampers (field supplied) can be either automatic or manu-

al. Manually operated dampers MUST be equipped with a means

to prevent furnace or air conditioning operation unless daroper is in

the full heat or cool position.

CARBON MONOXIDE POISONING HAZARD.

Failure to follow this warning could result in death

or personal injury.

Cool air passing over heat exchanger can cause

condensate to form resulting in heat exchanger

failure.

iiiil i i¸¸i;iiiiiiiiiii i!i! i;;

Side Return Air Cutout

= Height of Cutout for 16" x 25" Filter

AB 221/z"141/2"Width of Cutout for 16" x 25" Filter /_, I

Embossed Area

on Side of Furnace j_

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 pan-

el in the furnace base. Do NOT remove knock-out except 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.

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 mini-

mum of 1" insulation with indoor type vapor barrier.

Filters

Connections

NOTE: On upflow installations, return air can enter through either

side, both sides, or the bottom. On horizontal or downflow installa-

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 adja-

cent 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 un-

der the floor or through the attic. I

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, Iowvelocity filters are based on a maximum

air flow of 300 FPM when used with filter grille.

• See pages 51 &52, CirculatingAirBIowerDatafor addi-

tional data.

1. For side connections using a 1 6" x 25" filter, cut out the em-

bossed area shown in Figure 42. This will provide a 1 41/2 " x

_roximate o enin . same t e and size.

44001 102102

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

able, high velocity filter providing they meet the minimum size

areas. Washable, high velocity filters can be replaced ONLY with

[29

Mounted Filter Rack

I \

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 44 and Figure 45.

Standoff Filter Rack

Bottom Mounted Filter Rack

25-24-18

Slide filter clips towards back before removing

UsingOptional

Standoff Filter

Rack

25-21-45a

CAUTION

26 Ga. Galvanized Steel

11/4"

11/16"

Refer to Figure 46 and for guidelines to install filters. Furnaces

which require larger filter media and have limited clearances on

one side of furnace, require a standoff filter rack, see Figure 46,

available from your distributor.

Fabricate a plenum to the dimensions given in Table 12, for the

furnace 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

could result in death, personal injury and/or

property damage.

Place furnace on noncombustible subbase on

downflow applications, unless installing on non-

combustible floorinq.

44001 102102

Downflow Furnace Installation

Non- Combustible Floor Installation

When a refrigeration coil is used in conjunction with this unit, it

must be installed parallel with or on the discharge side of the unit to

avoid condensation on the heat exchanger. The coil installation in-

structions must be consulted for proper coil location and installa-

tion procedures. With a parallel flow arrangement, dampers must

be installed to prevent chilled air from entering the furnace. If

manually 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 ofthe furnace in order to

run the condensate drain line. Copper, iron or plastic tu bing may be

used for the condensate drain line.

Addition Of Air Conditioning

If filters are only suitable for heating application, advise

homeowner that filter size may need to be increased if air

conditioning is added.

Subbase for Combustible Floor

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. CuttheopeningintheflooraccordingtoTable 12. Thehole

in the floor must be cut to the dimensions listed in Table 12

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 12.

Note that the dimensions given are outside dimensions.

Subbases for Combustible Floors Dimensions

Subbase for Combustible

Floor Dimensions

Subbase for Combustible

Floors Part Number

Furnace Subbase

NAHH001SB

NAHH002SB

NAHH003SB

NAHH010SB

Subbase for Coil Cabinets

NAHH004SB

NAHH005SB

NAHH006SB

NAHH009SB

Outside Dimension

** Base Spacer Side To Side

H* J* K** L

1511/16 283/4 149/16 16

195/16 283/4 183/16 16

22b/16 283/4 2113/16 16

243/4 283/4 239/16 161/4

1511/16 209/16 149/16 161/4

195/16 209/16 183/16 161/4

23 209/16 2113/16 161/4

2411/16 209/16 239/16 16

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 47, Figure 48 and Figure 49.

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.

Furnace Subbase

T S

Opening In Floor

161/4

145/8

181/4

21//8

235/8

145/8

181/4

21//8

235/8

Opening In Base

For Plenum

131/2

171/8

193/4

221/2

131/2

171/8

193/4

221/2

Typical Plenum

Dimensions

Coil Cabinet Subbase

161/4

25-20-46

T _ S\,IL

Combustible

H FloorBase

131/2

171/8

19_/4

221/2

131/2

17118

193/4

221/2

25-20-46b

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

44001 102102 [_

iiiiiiiiiiiiiiiiiiiiiiiiiiiilil _ i iSjjjjjjjj! ;;;;;;i;;;¸ ; SettingtheSubbase

Furnoc / ' _

FloorBase

Floor

Wood Scre_ _/'_ _ Plenum 25-20-46a

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 50.

Condensate Line Raised by Base

25-20-52

9. Checks and Adjustments

NOTE: Verify the input rate of the furnace.

FIRE OR EXPLOSION HAZARD.

Failure to turn OFF gas at shut off before

connecting manometer could result in death,

personal injury and/or property damage.

Turn OFF gas at shut off before connecting

manometer.

Startup

NOTE: Refer to the start-up procedures in the "User's Information

Manual' or to the "Operating Instructions Label' on the furnace.

5. Remove manifold pressure adjustment screw cover on fur-

nace gas control valve. Turn adjusting screw counterclock-

wise to decrease manifold pressure and clockwise to

increase pressure.

NOTE: Adjustment screw cover MUST be replaced on gas control

valve before reading manifold pressure and operating furnace.

6. Set manifold pressure to value as shown in Table 8,

Table 9, Table 10 or Table 11.

7. When the manifold pressure is properly set, replace the ad-

justment screw cover on the gas control valve.

8. Remove jumper wire from thermostat connection on the

control board. Remove manometer connection from man-

ifold pressure tap, and replace plug in gas valve.

9. Check for leaks at plug.

10. Replace the burner compartment door.

Main Burner Flame Check

FIRE OR EXPLOSION HAZARD.

Failure to correct hazard could result in death,

personal injury and/or property damage.

If any sparks, odors or unusual noises occur,

immediately shut OFF power to furnace. Check for

wiring errors or obstruction to blower.

Gas Supply Pressure

Gas supply pressure should be within minimum and maximum val-

ues listed on rating plate. Pressures are usually set by gas suppli-

ers.

Manifold Gas Pressure Adjustment

NOTE: Make adjustment to manifold pressure with burners oper-

ating.

Remove the burner compartment door.

Remove the blower compartment door. A jumper wire

needs to be placed on furnace control R to W. Then replace

blower compartment door.

3. With gas OFF, connect manometer to tapped opening on

gas valve. Use manometer with a 0 to 15" water column

range.

4. Turn gas ON and remove adjustment screw cover on gas

valve. Turn counterclockwise to decrease pressure and

clockwise to increase.

AIIowthe furnace to run approximately 10 minutes then inspect the

main burner. See Figure 51.

Check for the following (Figure 51):

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

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

tips.

• Flames extending directly from burner into heat 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.

_ ;;;;;;;; ;;;;;;;;;;;;;;;;;;2;;¸;¸¸¸122

Main Burner

10-10-78

NOTE: For Ignitor location see F_.N.ure 52.

44001 102102

Ignitor Location

NOTE: Flame sensor has a different orientation in all 050 models.

REDUCED FURNACELIFE HAZARD

Failure to properly set the air temperature rise may

result in reduced furnace life.

Use ONLY the following blower motor speed taps for

setting air temperature rise.

Blower Motor Speed Taps Model Sizes

Hi (BLK) All

Med-Hi (O) All

Med Lo (BL) DO NOT USE

Lo (RED) DO NOT USE

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

Blower Speed Chart

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-

tures.

To check temperature rise,use the following procedure:

Wire Color

Black

Orange*

Blue

Red

Motor Speed

High

Med-High

Medium

Low

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

1. Place thermometers in supply and return air registers as

close to furnace as possible, avoiding direct radiant heat

from heat exchangers.

2. Operate furnace continuously for 15 minutes with all regis-

ters and duct dampers open.

3. Take reading and compare with range specified on rating

plate.

4, If the correct amount of temperature rise is NOT obtained, it

may be necessary to change blower speed. A higher blower

speed will lower the temperature rise. A lower blower speed

will increase the temperature rise.

Changing Blower Speed

ELECTRICAL SHOCK HAZARD

Failure to do so could result in death or personal

injury.

Turn OFF power to furnace before changing

speed taps.

1. Refer to Furnace Wiring Diagram for location of the heating

and cooling speed taps located on the furnace control as

well as location of unused blower motor speed leads. Use

the chart (Table 13) to determine the blower motor speed

settings.

2. 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 jumper

between the "Heat" and "Cool" terminals and the remaining

motor speed lead.

Note: For motors with (4) speed leads, it will be necessaryto

tape offthe 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 Motor

Lead" location.

Continuous-Fan Operation using "G"

Energizing the"G" terminal on the furnace control provides contin-

uous fan operation. This is done by connecting the G terminal of

the thermostat to the G terminal on the furnace control. When the

FAN switch is turned from auto to ON the fan will operate continu-

ously at "HEAT" speed. EAC will be energized in this mode.

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

for this product are based on a nominal 400 CFM per ton cooling

and the basic mid range on the temperature rise for heating.

Since the manufacturer cannot establish the static pressure

that will be applied to the unit, it is the responsibility of the in-

staller dealer/contractor to select the proper speed taps for the

a_p_L01icationwhen the unit is installed.

44001 102102

NOTE: In heating, the fan will turn off during furnace ignition and

warm up then restart at heating speed.

Hard Wired Continuous Fan Operation

A terminal is provided on the furnace control board 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 ratinq (8 arnps) than the heat and cool

taps. When the low speed blower lead is connected to this termi-

nal, this will provide low speed blower operation whenever the oth-

er 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-

10. Furnace Maintenance

minal at the furnace control. The appropriate motor leads should

already be connected to the "Heat" and "Cool" terminals.

Heating and Continuous Blower Speed the

Same

If it is necessary to operate the heating speed and continuous

blower speed using the same blower speed, connect a jumper be-

tween the "Heat" and "Cont." terminals on the furnace control.

Note: There should be only ONE motor lead going to the "Heat"

and "Cont." terminals.

FIRE, EXPLOSION, OR CARBON MONOXIDE

HAZARDS

Failure to have the furnace inspected and

maintained could result in fire, explosion, death or

personal injury.

It is recommended that the furnace be inspected

and serviced on an annual basis (before the heating

season) by a qualified service technician.

ELECTRICAL SHOCK, FIRE OR EXPLOSION

HAZARD

Failure to follow safety warnings exactly could result

in dangerous operation death, personal injury or

property damage.

Improper servicing could result in dangerous

operation, serious injury, death or property damage.

• Before servicing, disconnect all electrical power

to furnace.

• When servicing controls, label all wires prior to

disconnecting. Reconnect wires correctly.

• Verify proper operation after servicing.

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

[_ 44001 102102

11. Sequence of Operation & Diagnostics

The following is the normal operating sequence.

Cooling (Y) Request:

24VAC signals applied to Y & G terminals of FCB (furnace control board)

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

Y & G signals removed from FCB

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

Continuous Circulating Fan (G) Request:

24 VAC signal is applied to G terminal of the FCB.

• Heat motor speed is energized without delay.

G signal removed from FCB.

• Heat motor speed is de-energized after 5 second delay.

NOTE 1) Furnace de-energizes the fan during the heat exchanger warm-up period on a call for Heating that occurs during a G request

unless a blower motor lead is connected to the Cont terminal on the FCB, in which case see NOTE 2).

NOTE 2) Heating or Cooling requests received during a Fan request cause the fan speed to change to the appropriate heat or cool

speed after the Fan on Delay time expires. The fan returns to continuous circulating speed after the selected Fan Off Delay time expires

following loss of the Heating or Cooling request.

Continuous Circulating Fan Hard-Wired (Cont) Request:

Field selected low speed motor tap installed on "CONT" terminal.

• Low speed is energized when power applied to furnace. Operates at this speed continuously while there are no other

blower demands from furnace control. Fan demands from furnace control for heat, cool or "G" will override hard-wired speed tap.

NOTE 3) EAC is NOT active for hard-wired mode but IS active for fan demands from furnace control for heat, cool and "G".

Heating (W) Request:

• 24 VAC signal applied to W terminal of FCB.

• Inducer motor turns on and the pressure switch(es) close(s).

• Following a 15 second prepurge delay, after the pressure switches closes, the igniter begins a 17 second warm-up.

• The gas valve is energized, the main burners light and flame is sensed.

• The igniter is de-energized after the main burners ignite.

• FCB will delay blower operation for the 30 seconds timed from the opening of the gas valve.

W signal removed from FCB.

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

• The inducer runs for a 15 second postpurge period.

• The fan stays at Heat speed.

• The fan de-energizes after the selected Heat Fan Off Delay time expires, timed from the gas valve de-energizing.

HUMIDI FIE R - The 24V HUM is energized when the pressure switch closes on a call for heat. The 115V HUM (called HUM on Control)

is energized when the inducer is energized.

ELECTRONIC AIR CLEAN E R - EAC is energized when there is a blower speed call. It is NOT energized when blower operates in the

hard-wired continuous fan mode.

NOTE 4) If a new Heating request arrives while the control is waiting in the Heat Fan Off Delay time, the FCB will wait for the selected

Heat Fan Off Delay then start a new heating cycle as long as the heat call remains.

44001 102102 [_

Heating Request with Gas Shut Off:

24 VAC signal applied to W terminal of FCB.

The FCB will attempt 4 cycles for ignition then go to soft lockout for 3 hours then try for ignition again as long as the heat call remains.

Power reset will clear lockout.

• Inducer motor turns on

• Following a 15 second prepurge delay, the igniter begins warm up.

• The igniter glows red-hot for 22 seconds, then turns off. The FCB flashes error code 6.

• The igniter stays off for 17 seconds, then begins to warm up again.

• The igniter glows red hot for 22 seconds then turns off. The FCB continues flashing error code 6.

• The igniter stays off for 17 seconds, then begins to warm up again.

• The igniter glows red hot for 22 seconds then turns off. The FCB continues flashing error code 6.

• The igniter stays off for 17 seconds, then begins to warm up again.

• The igniter glows red hot for 22 seconds then turns off. The FCB proceeds to soft lockout and stops flashing error code 6 and begins

flashing error code 6 + 1.

• The inducer motor de-energizes after a 15 second post purge.

Control Board Diagnostic Codes (See Figure 53)

OFF = 24VAC or 115VAC is off, fuse is open

Heartbeat = Normal operation or no previous Diagnostic Code

QN SOLID = Soft Lockout - Furnace Control Error (1 hr delay)

If code repeats immediately following power reset then replace control

1 Flash = Not used

2 Flashes = Pressure switch(es) closed when should be open

3 Flashes = Pressure switch open when should be closed

4 Flashes = Limit or roll-out switch open (less than 2 minutes)

5 Flashes = Flame sensed out of sequence

6 Flashes = Failure to ignite or flame sense lost while running

6 + 1 Flashes = Soft Lockout - Max trials for ignition reached (3hr delay)

7 Flashes = Soft Lockout - Limit or roll-out switch open longer than 2 minutes (1 hr delay)

(roll-out switch requires manual reset)

8 Flashes = Permanent Lockout - Gas valve relay contact stuck closed or miswired gas valve (power reset only)

10 Flashes = Line voltage (115VAC) polarity reversed. If twinned, refer to twinning kit instructions

* If status code recall is needed, briefly (2-3 seconds) remove then reconnect one limit switch wire (main or rollout) to display last stored

status code. Do not remove power or blower door before initiating status code recall or code will be lost. Code is automatically cleared

after 72 hours or upon power reset.

* Proper flame sense microamps: 0.7 microamps D.C. minimum 2.0 - 4.0 microamps nominal

Control Board

[_ 440O1102102

Four Position Furnace

Models

International Comfort Products, LLC

Lewisburg, TN 37091

Fast Parts Division

866-380-3278

Single Pipe

N9MP1050B12C1

N9MP1075B12C1

N9MP1080F16C1

N9MP1100F14C1

N9MP1100J 20Cl

N9MP1125J20C1

Two Pipe

N9MP2050B12C1

N9MP2075B12C1

N9MP2080F16C1

N9MP2100F14C1

N9MP2100J20C1

N9MP2125J20C1

Dual Certified

*9MPD050F12C1

*9MPD075F12C1

*9M PD080J 16Cl

*9MPD100J14C1

*9MPD100J20Cl

*9MPD125L20C1

* Denotes Brand

Save This Manual For Future Reference

440 01 102102 [_

Model Specifications

Manufacturers Number (Mfr No -See Rating Plate) ALL Models

Specifications (N9MP1)

N9MP1050B12C N9MP1075B12C N9MP1080F16C N9MP1100F14C NgMP1100J20C N9MP1125J20C

General

GasType Nat./LP Nat./LP Nat./LP Nat./LP Nat./LP Nat./LP

Input(Btuh) 50,000 75,000 80,000 100,000 100,000 125,000

Output(Btuh) 45,500 68,000 72,000 91,000 96,500 113,750

Transformer Size (VA) 40 40 40 40 40 40

T'stat HeatAnticipator .50 .50 .50 .50 .50 .50

Temp. Rise(F) 35-65 40-70 35-65 40-70 40-70 40-70

Electrical(VoltslHz/FLA) 11516019.8 11516018.9 11516019.0 11516019.0 115160110.5 115160111.2

RatingPlateAmps 12.9 10.1 12.9 10.1 14.4 15.0

Gas & Ignition

GasType Nat. L.P. Nat. LP. Nat. L.P. Nat. L.P. Nat. LP. Nat. L.P.

GasValve (Honeywell) VR 8205S

RegulationType SNAP

IgnitionTypelSeries HotSurface

ManifoldPress. (Inch'sWC) 3.5 10.0 3.5 10.0 3.5 10.0 3.5 10.0 3.5 10.0 3.5 10.0

Std.MainOrifices (No/Size) 2142 2154 3/42 3/54 4/44 4/55 4/42 4/54 4/42 4/54 5/42 5/54

Furnace Controls

FurnaceControl(Type) Integrated

FurnaceControl On 30

(Timed-secs) Off 60,100,140,180

Combustion

Flue Outlet Size (Inches) 2 3

Std. Outlet Temp (°F 5' No Elbows) <140 <140

Blower Pressure 5' No Elbows (" WC) -- -1.8

BlowerPressure40' +5-90 ° DWV Elbows (" WC) -- -1.7

fransition Bx Pressure 5' No Elbows (" WC) -2.6 -2.6

TransitionBx Pressure 40' +5-90 ° DWV Elbows (" WC) -2.5 -2.5

300

190

Limits &Controls

RolloutSwitch(F)

LimitControl 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)

Blower Data

Type & Size

MotorAmps/Rpm

MotorType/H.p.

Cap.Mfd/Volts

FilterType& Size (Permanent- not supplied)

CoolCap. (Tons)@ .5" W.C. L, ML, MHi& Hi

2 2

<140 <140

-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

-- NAHA001LV

-- 1013518

-- -1.0

-- -0.8

-- -2.0

-- -1.8

11-8 11-8

10/850 8.0/1050

PSClI/2 PSC/I/2

7.51370 7.51370

16x25x1 16x25x1

1112,2,21/2,3 11/2,2,2112,3

300

230

1013811

-1.8

-1.6

1013812

-1.5

-1.3

11-10

10/1050

PSC/I/2

10/370

16x25x1

21/2,3,3112,4

3 3

<140 <140

-1.8 -1.8

-1.7 -1.7

-2.6 -2.6

-2.5 -2.5

300 300

230 220

1013801 1013802

-2.3 -2.2

-2.1 -2.0

1013803 1013803

-2.0 -2.0

-1.8 -1.8

NAHAO01_ NAHA001LV

1013518 1013518

-1.0 -1.0

-0.8 -0.8

-2.0 -2.0

-1.8 -1.8

NAHA003LV

1013165

-0.7

-0.6

-1.4

-1.2

11-10 11-10

10/1050 131900

PSC/I/2 PSC/3/4

101370 40/370

16x25x1 16x25x1

1112,2,3,3112, 31/2,4,4112,5

Gas Conversion Kits

Natto LP NAHA001LP(1172958*)

LPto Nat NAHA001NG(1172960*

_Order from Service Parts

1013166

-1.3

-1.1

-1.8

-1.6

1013157

-0.9

-0.7

-1.7

-1.5

11-10

131900

PSC/3/4

40/370

16x25x1

31/2,4,4112,5

[_ 44001 102102

Manufacturers Number (Mfr No -See Rating Plate) ALL Models

Specifications (N9MP2)

N9MP2050B12C NgMP2075B12C N9MP2080F16C NgMP2100F14C N9MP2100J20C N9MP2125J20C

General

GasType Nat./LP Nat./LP Nat./LP Nat./LP Nat./LP Nat./LP

Input(Btuh) 50,000 75,000 80,000 100,000 100,000 125,000

Output(Btuh) 45,500 68,000 72,000 91,000 96,500 113,750

Transformer Size (VA) 40 40 40 40 40 40

T'stat HeatAnticipator .50 .50 .50 .50 .50 .50

Temp. Rise (F) 35-65 40-70 35-65 40-70 40-70 40-70

Electrical(Volts/Hz/FLA) 115/60/9.8 115/60/8.9 115/6019.0 115/60/9.0 115/60110.5 115/60/11.2

RatingPlateAmps 12.0 10.1 12.9 10.1 14.4 15.0

Gas & Ignition

GasType Nat. L.P. Nat. LP. Nat. L.P. Nat. L.P. Nat. LP. Nat. L.P.

GasValve(Honeywell) VR 8205S

RegulationType SNAP

IgnifionTypelSeries NotSurface

ManifoldPress. (Inch'sWC) 3.5 I0.0 3.5 10.0 3.5 I0.0 3.5 I0.0 3.5 10.0 3.5 I0.0

Std.MainOrifices (NolSize) 2142 2154 3142 3154 4144 4155 4142 4154 4142 4154 5142 5154

Furnace Controls

FurnaceControl(Type) Integrated

FurnaceControl On 30

(Timed-secs) Off 60,100,140,180

Combustion

Flue Outlet Size (Inches) 2 3

Std. Outlet Temp (°F 5' No Elbows) <140 <140

Blower Pressure5' 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

RolloutSwitch(F)

LimitControl 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)

BlowerData

Type & Size

MotorAmpslRpm

MotorTypelH.p.

Cap.MfdNolts

FilterType& Size (Permanent- not supplied)

CoolCap. (Tons)c,_.5" W.C. L, ML, MHi& Hi

2 2

<140 <140

-- -1.8

-- -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

-- NAHA001_

-- 1013518

-- -1.0

-- -0.8

-- -2.0

-- -1.8

-- NAHA003_

-- 1013165

-- -0.7

-- -0.6

-- -1.4

-- -1.2

11-8 11-8

10/850 8._1050

PSC/1/2 PSC/II2

7.5/370 7.5/370

16x25x1 16x25x1

11/2,2,2112,3 1112,2,21/2,3

-2.6

-2.5

300

230

1013811

-1.8

-1.6

1013812

-1.5

-1.3

11-10

10/1050

PSC/II2

10/370

16x25x1

2112,3,31/2,4

3 3

<140 <140

-1.8 -1.8

-1.7 -1.7

-2.6 -2.6

-2.5 -2.5

300 300

230 220

1013801 1013802

-2.3 -2.2

-2.1 -2.0

1013803 1013803

-2.0 -2.0

-1.8 -1.8

NAHA001_ NAHA001LV

1013518 1013518

-1.0 -1.0

-0.8 -0.8

-2.0 -2.0

-1.8 -1.8

NAHA003LV

1013165

-0.7

-0.6

-1.4

-1.2

11-10 11-10

10/1050 13/900

PSC/I/2 PSC/314

10/370 40/370

16x25x1 16x25x1

11/2,2,3,31/2, 3112,4,41/2,5

Gas Conversion Kits

Natto LP NAHAOO1LP(1172958)

LPto Nat NAHAOO1NG(1172960*)

_Order from Service Parts

-1.8

-1.7

-2.6

-2.5

3OO

190

1013166

-1.3

-1.1

-1.8

-1.6

1013157

-0.9

-0.7

-1.7

-1.5

11-10

13/900

PSC/314

40/370

16x25x1

3112,4,41/2,5

44001 102102 [_

ManufacturersNumber (Mfr No -See Rating Plate) ALL Models

Specifications (*9MPD)

*gMPD050F12C *9MPD075F12C *9MPD080J16C *gMPD100J14C *9MPD100J20C *9MPD125L20C

General

GasType Nat./LP Nat./LP Nat./LP Nat./LP Nat./LP Nat./LP

Input(Btuh) 50,000 75,000 80,000 100,000 100,000 125,000

Output(Btuh) 46,000 69,000 73,600 92,000 92,000 115,000

Transformer Size (VA) 40 40 40 40 40 40

T'stat HeatAnticipator .50 .50 .50 .50 .50 .50

Temp. Rise(F) 35-65 40-70 35-65 40-70 40-70 40-70

Electrical(Volts/Hz) 115/60 115160 115160 115/60 115160 115160

RatingPlateAmps 12.0 10.1 12.9 10.1 14.4 15.0

Gas & Ignition

GasType Nat. L.P. Nat. LP. Nat. L.P. Nat. L.P. Nat. LP. Nat. L.P.

GasValve(Honeywell) VR 8205S

RegulationType SNAP

IgnifionType/Series HotSurface

ManifoldPress. (Inch'sWC) 3.5 10.0 3.5 10.0 3.5 10.0 3.5 10.0 3.5 10.0 3.5 10.0

Std.MainOrifices (No/Size) 2/42 2/54 3/42 3/54 4144 4155 4/42 4154 4142 4/54 5/42 5154

Furnace Controls

FurnaceControl(Type) Integrated

FurnaceControl On 30

(Timed-secs) Off 60,100,140,180

Combustion

Flue Outlet Size (Inches) 2 2 2 3 3 3

Std. Outlet Temp (°F 5' No Elbows)" <140 <140 <140 <140 <140 <140

Blower Pressure5' No Elbows (" WC)

BlowerPressure40' +5-90 ° DWV Elbows (" WC)

Transition BxPressure 5' No Elbows (" WC)

TransitionBx Pressure40' +5-90 ° DWV Elbows (" WC)

Limits &Controls

RolloutSwitch(F)

LimitControl 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)

BlowerData

Type & Size

MotorAmps/Rpm

MotorType/H.p.

Cap.MfdNolts

FilterType& Size (Permanent- not supplied)

CoolCap. (Tons)Ca.5" W.C. L, ML, MHi& Hi

-2.6

-2.3

300

260

1013802

-2.2

-2.0

1013803

-2.0

-1.8

11-8

10/850

PSC/1/2

7.51370

16x25x1

11/2,2,2112,3

-2.6

-2.3

300

240

1013802

-2.2

-2.0

1013803

-2.0

-1.8

NAHA002LV

1013515

-1.0

-0.8

-1.7

-1.5

11-10

8.011050

PSC/ll2

7.51370

16x25x1

1112,2,21/2,3

-2.6

-2.5

3OO

22O

1013812

-1.5

-1.3

1013813

-1.2

-1.0

11-10

10/1050

PSC/ll2

10/370

16x25x1

2112,3,31/2,4

-1.8

-1.7

-2.6

-2.5

3O0

22O

1013802

-2.2

-2.0

1013803

-2.0

-1.8

-1.7

-2.6

-2.5

300

220

1013802

-2.2

-2.0

1013803

-2.0

-1.8

NAHA002LV

1013515

-1.0

-0.8

-1.7

-1.5

NAHA003LV

1013165

-0.7

-0.6

-1.4

-1.2

11-10

10/1050

PSC/I/2

10/370

16x25x1

11/2,2,3,31I2

11-10

131900

PSC/314

40/370

16x25x1

3112,4,4112,5

Gas Conversion Kits

Natto LP NAHA001LP(1172958*)

LPto Nat NAHA001NG(1172960_)

*Order from Service Parts

-1.8

-1.7

-2.6

-2.5

300

190

1013166

-1.3

-1.1

-1.8

-1.6

1013157

-0.9

-0.7

-1.7

-1.5

11-10

13/900

PSC/314

40/370

16x25x1

3112,4,41/2,5

[_ 44001 102102

CIRCULATION AIR BLOWER DATA (CFM #)

II N9MP1050B12, N9MP2050B12 (1)

11*9MPD050F12 (1) _ Denotes Brand

£nd_ree_ Low Med L Med H Hi

Tap

0.1 826 1083 1301 1408

=0.2 804 1050 1242 1347

_ O, 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

0.8 .... 812 865 976

0.9 ...... 802 887

1.0 ...... 720 787

NgMP1075B12, NgMP2075B12 (1)

Speed Low Med LMed H Hi

Tap

0.1 706 917 1163 1368

=0.2 677 875 1120 1319

_ O 0.3 636 840 1076 1263

'_ o 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

£nrl_ree_ Low Med L Med H Hi

Tap

,¢ 0.1 826 1083 1301 1408

0.2 804 1050 1242 1347

'-_O 0.3 770 1028 1195 1295

'£ 0.4 735 985 1153 1237

_ 0.5 698 952 1093 1183

,-__c° 0.6 657 909 1040 1118

× 0.7 --- 863 935 1053

0.8 .... 812 865 976

0.9 ...... 802 887

1.0 ...... 720 787

11*9MPD075F12 (1) * Denotes Brand

Speed Low Med L Med H Hi

lap

¢ 0.1 706 917 1163 1368

0.2 677 875 1120 1319

,-_tj 0.3 636 840 1076 1263

',_ o 0.4 595 812 1031 1202

'_ _ 0.5 546 766 987 1148

o 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

11*9MPD080J16 (1) * Denotes Brand

Speed Low Med L Med H Hi

lap

0.1 823 1109 1527 1850

0.2 795 1087 1482 1791

= 0.3 747 1056 1426 1720

O 0.4 677 1016 1382 1648

,£ 0.5 617 970 1317 1575

,_ _ 0.6 544 854 1245 1485

"_ 0.7 --- 763 1154 1401

0.8 --- 652 1043 1284

_J 0.9 ...... 905 1161

1.0 ...... 737 1028

II N9MP1080F16, N9MP2080F16 (1)

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

O 0.4 677 1016 1382 1648

,£ 0.5 617 970 1317 1575

_ 0.6 544 854 1245 1485

_ 0.7 --- 763 1154 1401

0.8 --- 652 1043 1284

w0.9 ...... 905 1161

1.0 ...... 737 1028

iNOTE1Databaed°nBottomOny°rOneSdereturnII

(2) Data based on Both Sides or Bottom plus One Side

(3) 100J20 Reduce airflow by 5% if Bottom Only return.

(4) 125J20 Reduce airflow by 5% if Bottom Only return.

# CFM - Cubic Feet per Minute airflow. Filter required for each return-air inlet.

Airflow performance includes 1" washable (600 FPM max) filter media.

MAX CFM's

Filter Size CFM

14"X 25" 1400

16"X 25" 1600

20"X 25" 2000

24"X 25" 2500

Max CFM based on 600 FPM

44001 102102 [_

CIRCULATION AIR BLOWER DATA (CFM #)

I N9MP1100F14, N9MP2100F14 (1) 1*9MPD100J14 (1)

k. ,

Speed

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

Low Med L Med H

700 912 1209

660 884 1171

616 843 1139

575 790 1088

528 735 1040

472 677 979

--- 608 909

--- 528 827

...... 733

...... 624

Hi Speed Low Med L

Tap

1550 '_ 0.1 700 912

1492 _ cj 0.2 860 884

1434 a. _ 0.3 816 843

',_ o 0.4 575 790

1378 _ ¢_

1317 _ .c 0.5 528 735

1247 _ -- 0.6 472 677

1161 uJ 0.7 --- 608

1058 0.8 --- 528

932 0.9 ......

778 1.0 ......

Med H Hi

1209 1550

1171 1492

1139 1434

1088 1378

1040 1317

979 1247

909 1161

827 1058

733 932

624 778

IN9MP1100J20, N9MP2100J20, *9MPD100J20 (2)(3)

* Denotes Brand

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

_ 0.4 1547 1719 1899 2056

°0.5 1498 1653 1825 1978

'go

_ 0.6 1428 1583 1737 1854

_ 0.7 1355 1503 1650 1757

-- 0.8 1267 1392 1548 1644

w 0.9 --- 1266 1428 1515

1.0 ......... 1351

*gMPD125L20 (2) * Denotes Brand

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

,9 _ 0.4 1600 1777 1961 2131

_o _ 0.5 1533 1720 1891 2029

°0.6 1494 1647 1804 1948

0.7 1413 1571 1708 1820

w 0.8 1306 1470 1604 1730

0.9 .... 1349 1484 1614

1.0 ........ 1328 1430

II N9MP1125J20, N9MP2125J20 (2)(4)

Speed Low Med L Med H Hi

Tap

0.1 1720 1910 2127 2315

,e 0.2 1686 1881 2087 2268

d 0.3 1644 1833 2024 2201

,£ 0.4 1600 1777 1981 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

NOTE: (1) Data based on Bottom Only or One Side return.

(2) Data based on Both Sides or Bottom plus One Side

(3) 100J20 Reduce airflow by 5% if Bottom Only return.

(4) 125J20 Reduce airflow by 5% if Bottom Only return.

MAX CFM's

Filter Size CFM

14"X 25" 1400

16"X 25" 1600

20"X 25" 2000

24"X 25" 2500

Max CFM based on 600 FPM

Filter required for each return-air inlet.

)erformance includes 1" washable (600 FPM max) filter media.

[_ 44001 102102

CONNECTION DIAGRAM WARNING: ELECTRICAL SHOCK HAZARD

DISCONNECTBEFORESERVICING LADDER DIAGRAM z o o

m _OO

ROLLOUT SWITCH 1TO2 COPPER CONDUCTOR S O O

TO 115VAC FIELD DISCONNECT **qrr

INSERIESDEPENDING LP PRESSURE CAPACITOR " " OT /NE UTR AL /_

ONMODEL MAIN LIMIT BVSS SWITCH ONLY ,_H NOTE #2 EQUIPME NT GROUND OOO

ro-"4V_- ,..u.°,,w....°, .OT..UT--"°, .8.--,+

--o _ L 2_

NOTE #8 l| | _r_>

' ,--_,_'_ ' i_ _ _' 'P _ __ _ ..

/.... _ I_',,._J$_'E_S--U_'ESW_TC--H---- ¥ ' I_NITER _. I -- I'_INDUCER 2P_ (%%ERR)I_IcA_Ac'T°R _

[,,?As__I__ZI_BL_ ¥ _TO_,NSER,ES I'NDU_R_" nnn _ " W RELAY P_ P_ _SOMEMODELS_ _ _o_0_

,..j_ _.,,.V,--,--GRN'_--I"_li' °.END,N_ONMODEL_'MOTOR' ,_,,00_ °.,W',o-. k_---_ _ ' __ _ °_°'_"

NOTE #31 / I NOTE #12 _ I

_. _W_SENSOR []_P4 I| _ IIG#NIT_Ov N I NOTE #'3 f._ _

_HO_- J._a__,_'G'TERN ,,

m I I00 180

.... I / II ,NOIld:::--I I _4-- UNC_ON HEAT_OOL

RELAY -- HEAT MHI (O)

o ,0o%o / / II _-__ _ B. 0ox _-- . _0 ,40

_nI im_ M r_ 60SEC

_r_ __ I / II , ×. _, El-- =sJ. , ,MLO_0L,_..... _,_,>

....... )

> _o ,4o _ I I II I _u _l _w_ _LOWE.

< _0 W _ COOL 0

_LOWERl ''z_" t, _ ..... /-It =

_÷__1_/ II _ LI_--__14__1 _ RELAY IN "_ IN

_ _ _.-,_ _ _ _ ,_ i i---__ EAC _]= o ,,

__ _ _ '_ _ _ _°R_, __ CI_T_N co. N

-'_' U _Nd ,_', ,-J"_'_t.--,L_,;;;TO.''}_ i _ m°

_--_ S-AMP _ !T _ _ i 24VAC

HEAT COOL _ _ __w_/,_

ITRANSFORMER

ON MODEL PI 6 FUSE SA I

W MAIN LIMIT NOTE #6 24VAC COM

.L O

R .......... P14 1 TO 2IN SERIES

1. Ifanyoftheodginalequipmentwireisreplaced .... ireratedl05°C. SPEEDTAPCODE COLORCODE II I,,o I/_E _> ,40,EC

2. Useonlycopperwirebetweenthedisconnectswitchandthefumace _ M 24VAC

BLACK BK P SS SWITCH I

_unc,on,ox B_AC. .1 BLUE BL I , LL _/ :_P_'SD0.O.LY,'.

3. This wire must be connected to furnace sheet metal for control tOproveflame. ORANGE MHI BROWN BR I_ I P18 NOTE#8 _ .....

4. Symbois are eiectricalrepresentationonly. BLUE MLO GREENMELLOW GRNIY _ i _ _ ._

ORANGE O I GAS I \ U-"=--__--U........ ,

5. Solid lines inside circuit board are printed circuit board traces and are RED LO RED R IVALVE _ I O J1

not depicted as shown in the legend. WHITE W y CPU RELAY P12 _B\TS_

6. Replace only with a 5 amp fuse. YE LLOW Y

7. Blower motor speed selections are for average conditions, see I_G "_) f-"_ I (FIELD INSTALLEE

installation instructions for details on optimum speed selection. I °lp _/_1 ,_

8. Factory connected when LP Pressure Switch and BVSS (Chimney LOW VOLTAG E F ACTOR Y _ -<

Adapter Accessory Kit) are not installed. -- _ 18o sEC

9. Blower off*delay, gas heating selections are (60, 100, 140, and 180) LOW VO LTAG E FIE LD I

seconds, cooling or heat pump 90 seconds. L IN E V O LTAG E F AC TO RY I_ _ '

_ " NOTE #3

J0.1gnitionlockoutwilloccurafter four consecutive unsuccessful tdals for I I I LINE VOLTAGE FIELD _-_z =&_LD_

ignition. Control will auto-reset after three hours. CONDUCTOR ON CONTR OL __>p_ SENSOR

11.Bloverload.......... switches.t°rand ind........ t...... rain intemal But ...... t thermal _ JUNCTION _ __O_ ,_[2_*) P 11_.p1 SNOTE #12

12. Flame sensor: 0.7 RA D.C. minimum, 2.0 - 4.0 #A nominal. O U N MAR K E D T E R MINAL

13. Depending on model, P4 inducer motor leads may be in a single connector _::#) P1 9

or M_oquick connecters. ICONTROLTERMINAL 1CONTROLBOARD 330709-101REV. 13,

\LL

\ZZ

Representative drawing only, some models may vary in appearance.

16 GG

14--f

QD 7

25-24-75a-3

IReplacement Parts -NgMP1 & NgMP2

Models N9MP1050B12C1, N9MP1075B12C1, N9MP1080F16C1, N9MP1100F14C1, N9MP1100J20C1 &

N9MP1125J20C1 - N9MP2050B12C1, N9MP2075B12C1, N9MP2080F16C1, N9MP2100F14C1, N9MP2100J20C1 &

N9MP2125J20C1 (Natural Gas)

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

NgMP1 N9MP2

Key Description Part

No, Functional Number 080B 075B 080F 100F 100J 125J 050B 075B 080F 100F 100J 128J

12C 12C 16C 14C 20C 20C 12C 12C 16C 14C 20C 20C

1 1

1 1 1

1 Heat Exchanger,Primary 1012847

1012851

1012855 1

1012856 1 1

1012859 1 1

2 Heat Exchanger,Secondary 1013760 1 1

1013761 1 1

1013764 1 1 1 1

1013765 1 1

1013766 1 1

3 Motor, BIr 1/115 1/2CCW 1172488 1 1 1 1

1/115 1/2CCW 1172487 1 1 1 1

1/1153/4CCW 1172489 1 1 1 1

4 Mount, Motorkit* 1014824 1 1 1 1

1014823 1 1 1 1 1 1

1014822 1 1

5 Wheel, Blower 1013011 1 1 1 1

1011420 1 1 1 1 1 1 1 1

6 Transformer 1172810 1 1 1 1 1 1 1 1 1 1 1 1

7 Capacitor, 10Mfd, 370V 1171729 1 1 1 1

7.SMfd.,370V 1171728 1 1 1 1

40Mfd.,370V 1171982 1 1 1 1

8 Control 1172550 1 1 1 1 1 1 1 1 1 1 1 1

9 Switch, Interlock 1171981 1 1 1 1 1 1 1 1 1 1 1 1

10 Switch, Pressure 1013802 1 1 1 1 1

1013811 1 1

1013801 1 1 1

1013166 1 1

11 Blower,Exhaust(Jakel) 1172823 1 1 1 1 1 1 1 1 1 1

1172824 1 1

12 Valve,Gas 1172821 1 1 1 1 1 1 1 1 1 1 1 1

13 FlameSensor 1172827 1 1 1 1 1 1 1 1 1 1 1 1

14 Igniter 1172533 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

#44 Nat. 1011352 4 4

16 Switch, Limit(Ronout) 1013102 2 2 2 2 2 2 2 2 2 2 2 2

17 BurnerAssembly 1172884 1 1

1172965 1 1

1172966 1 1 1 1 1 1

1172967 1 1

18 Switch, Limit(Main) 34335001 1

34335002 1

1320361 1

1008445

1320367

1 1 1

1 1

*See Table below for bellyband location on motor

Bellyband Location on Motor

Model N9MPI/2 A(in.)

050B12C1 2.09"

075B12C1 1.38"

080F16C1 1.81"

100F14C1 1.38"

100J20C1 1.65"

125J20C1 1.65"

44001 102102

IReplacement Parts -NgMP1 & NgMP2

Models N9MP105OB12C1, N9MP1075B12C1, N9MP108OF16C1, N9MP11OOF14C1, N9MP11OOJ2OC1 8,

N9MP1125J2OC1 - N9MP205OB12C1, N9MP2075B12C1, N9MP208OF16C1, N9MP21OOF14C1, N9MP21OOJ2OC1 &

N9MP2125J2OC1 (Natural Gas)

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

Key Description Part NgMP1 NgMP2

050B 075B 080F 100F 100J 125J 050B 075B 080F 100F 100J 125J

No. Non-Functional Number 12C 12C 16C 14C 20C 20C 12C 12C 16C 14C 20C 20C

A Panel,Top 1013507 1 1

1013508 1 1

1013509 1 1

1012957 1 1

1012958 1 1

1012959 1 1

B Gasket,TopPanel 1012602 1 1 1 1

1012603 1 1 1 1

1012604 1 1 1 1

F Partition,Blower 1171983 1 1

1171984 1 1

1171985 1 1

1172004 1 1

1172005 1 1

1172006 1 1

H Housing,Blower 1172885 1 1 1 1

1172969 1 1 1 1 1 1 1 1

J Panel,BlowerCutoff 721020013 1 1 1 1

721020008 1 1 1 1 1 1 1 1

K Hange_Blower 1012328 2 2 2 2 2 2 2 2 2 2 2 2

L Doo£Blower 1172992 1 1

1172994 1 1

1172996 1 1

1172991 1 1

1172993 1 1

1172995 1 1

M Bracket,DoorFiller 1172231 1 1 1 1

1172232 1 1 1 1

1172233 1 1 1 1

N Doo£Front 1013789 1 1

1013790 1 1

1013791 1 1

1013210 1 1

1013211 1 1

1013212 1 1

O Strap, Capacitor 1170643 1 1 1 1 1 1 1 1

1014315 1 1 1 1

P TransitionAssembly 1172227 1 1 1 1

1172228 1 1 1 1

1172229 1 1 1 1

Q Gasket, Blower 1014425 1 1 1 1 1 1 1 1 1 1 1 1

R Boar&Insulating 1012417 1 1 1 1

1012418 1 1 1 1

1012419 1 1 1 1

S Box,Collector 1012128 1 1 1 1

1012244 1 1 1 1

1012245 1 1 1 1

T Gasket,Transition 1013079 1 1 1 1

1013080 1 1 1 1

1013083 1 1 1 1

U Gasket,CollectorBox 1012593 1 1 1 1

1012594 1 1 1 1

1012595 1 1 1 1

V Partition,FrontHt Exchanger 1012646 1 1

1012647 1 1

1012649 1 1 1 1

1012651 1 1

1012652 1 1

440 01 102102

IReplacement Parts -NgMP1 & NgMP2

Models - N9MP1050B12C1, N9MP1075B12C1, N9MP1080F16C1, N9MP1100F14C1, N9MP1100J20C1 &

N9MP1125J20C1 - N9MP2050B12C1, N9MP2075B12C1, N9MP2080F16C1, N9MP2100F14C1, N9MP2100J20C1 &

N9MP2125J20C1 (Natural Gas)

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

N9MP1 N9MP2

Key Description Part 080B 075B 080F 100F 100J 128J 080B 078B 080F 100F 100J 125J

No. Non-Functional Number 12C 12C 16C 14C 20C 20C 12C 12C 16C 14C 20C 20C

W Gasket,AttachmentPlate 1012542 2 2

1012543 2 2

1012544 2 2 2 2 2 2

1012545 2 2

X Cover,JunctionBox 1012350 1 1 1 1 1 1 1 1 1 1 1 1

Y Box,Junction 1172860 1 1 1 1 1 1 1 1 1 1 1 1

BB Manifold 1012276 1 1

1012277 1 1

1012278 1 1 1 1 1 1

1012279 1 1

CC Bottom,BurnerBox 1172847 1 1

1172848 1 1

1172849 1 1 1 1 1 1

1172850 1 1

DD Baffle, BurnerBox 1012338 1 1 1 1

1012339 1 1 1 1 1 1

1012340 1 1

EE Top,BurnerBox 1013702 1 1 1 1

1013703 1 1 1 1 1 1

1013704 1 1

FF Bracket,ManifoldSupport 1012377 2 2 2 2 2 2 2 2 2 2 2 2

GG Bracket,BurnerBoxSide 1012532 2 2 2 2 2 2 2 2 2 2 2 2

HH Bracket,ControlMounting 1172845 1 1 1 1 1 1 1 1 1 1 1 1

JJ Tube, Sensor 1172240 1 1 1 1 1 1 1 1 1 1

1172238 1 1

1172241 1 1

KK Trap,Drain Assembly 1171917 1 1 1 1 1 1 1 1 1 1 1 1

LL Sightglass 1012756 1 1 1 1 1 1 1 1 1 1 1 1

QQ Gasket,Trap 1013701 1 1 1 1 1 1 1 1 1 1 1 1

RR Bracket,Trap 1171986 1 1 1 1 1 1 1 1 1 1 1 1

SS Gasket,Trap Bracket 1172000 1 1 1 1 1 1

1171987 1 1 1 1 1 1

TT Tube, DrainColl.Box5/8"ID 1173065 1 1 1 1 1 1

1172245 1 1 1 1 1 1

1171989 1 1 1 1 1 1 1 1 1 1 1 1

1172012 1 1 1 1 1 1 1 1 1 1 1 1

1014003 1 1 1 1 1 1 1 1 1 1 1 1

1172768 1 1 1 1 1 1 1 1 1 1 1 1

UU Tube, DrainTee I12"ID

VV Tube, Relief

WW Drain Vent

ZZ Sigbtglass

)( PAR]- NOT ILLUSTRATED

)( DoorScrews

)( DoorScrewsGrommets

)( Clamp,Hose314"

)( Clamp,Hose518"

)( Grommet,Vent

)( Bushing,StrainRelief

)( Harness,Wire

)( Trap,DrainTee

)( Tube, I12"ID Drain

)( Tube, I12"ID ElbowStreet

)( Coupling,I12"Barbed

1014488

1171990

1012976

1012975

1012697

1945287

1172817

1171916

1171991

1171996

1171993

44001 102102

Replacement Parts -NgMP1 & NgMP2

Models - N9MP1050B12C1, N9MP1075B12C1, N9MP1080F16C1, N9MP1100F14C1, N9MP1100J20C1 8,

N9MP1125J20C1 - N9MP2050B12C1, N9MP2075B12C1, N9MP2080F16C1, N9MP2100F14C1, N9MP2100J20C1 &

N9MP2125J20C1 (Natural Gas)

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

N9MP1 N9MP2

Key Description Pan OSOB 075B 080F 100F 100J 128J 080B 078B 080F 100F 100J 125J

No. Non-Functional Number 12C 12C 16C 14C 20C 20C 12C 12C 16C 14C 20C 20C

)( PART NOT ILLUSTRATED

)( Tube, 112"ID Elbow 1171992 1 1 1 1 1 1

)( Tubeing,s/8"ID Drain 1171994 1 1 1 1 1 1 1 1 1 1 1 1

)( Connector,314"X 1/2" 1171995 1 1 1 1 1 1 1 1 1 1 1 1

)( Plate, CoverTrap 1171999 1 1 1 1 1 1 1 1 1 1 1 1

)( Gasket,Trap Bracket 1171987 1 1 1 1 1 1 1 1 1 1 1 1

)( Elbow,1/2"CPVCStreet 1171996 1 1 1 1 1 1 1 1 1 1 1 1

)( Grommet,Casing 1171997 1 1 1 1 1 1 1 1 1 1 1 1

)( Tube, ReleifExt. 1172239 1 1 1 1 1 1 1 1 1 1 1 1

)( Connector,ReleifTube 1171998 1 1 1 1 1 1 1 1 1 1 1 1

)( Gasket,CoverPlate 1172000 1 1 1 1 1 1 1 1 1 1 1 1

)( Cap, DrainTee 1171916 1 1 1 1 1 1 1 1 1 1 1 1

)( Clamp,TeeCap 1172002 1 1 1 1 1 1 1 1 1 1 1 1

)( Coupling,Air Intake 1012284 1 1 1 1 1 1

)( Gasket,Air Intake 1012583 1 1 1 1 1 1

)( Gasket,Trap Bracket 1171987 1 1 1 1 1 1

)( Grommet,Vinyl (GasInlet) 1009535 1 1 1 1 1 1

)( Bushing,StrainRelief 1945287 1 1 1 1 1 1

)( InstallationManual 44001102102 I I I I I I I I I I I I

)( User's Manual 44102201100 I I I I I I I I I I I I

_] 440 01 102102

IReplacement Parts - *gMPD

Models - *9MPDO5OF12C1, *9MPDO75F12C1, *9MPDO80J 16C1, *9MPD100J14C1, *9MPD100J20C1 & *9MPD125L20C1

(Natural Gas) _Denotes Brand

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

Key Description Part *9MPD

No. Functional Number 080J16C 100J14C 100J20C 128L200

1 Heat Exchanger,Primary

2 Heat Exchanger,Secondary

3 Motor,Blower

4 Mount, Motor kit_

5 Wheel, Blower

6 Transformer

7 Capacitor,7.SMfd.,370V

10Mfd.,370V

40Mfd.,370V

8 Control,FanTimer

9 Switch,Interlock

10 Switch,Pressure

11 Blower,Exhaust

12 Valve,Gas Nat.

13 FlameSensor

14 Igniter

15 Orifice,Burner#42 Nat.

#44 Nat

16 Switch,Limit(Rollout)

17 BurnerAssembly

18 Switch, Limit (Main)

1012850

1012854

1012858

1012862

1013762

1013763

1013765

1013767

1172488

1172487

1172489

1014824

1014822

1014823

1013011

1011420

1172810

1171928

1171929

1171982

1172550

1171981

1013802

1013812

1013166

1172823

1172824

1172821

1172827

1172553

1011351

1011352

1013102

1172884

1172965

1172966

1172967

1320366

34335002

1008445

1320367

_See Table below for bellyband location on motor

050F120

075F120

Bellyband Location

on Motor

Model N9MPD A(in.)

050F12C1 2.09"

075F12C1 1.38"

080J16C1 1.81"

100J14C1 1.38"

100J20C1 1.65"

125L20C1 1.65"

44001 102102

IReplacement Parts - *gMPD

Models - _9MPDO5OF12C1, _9MPDO75F12C1, _9MPDO80J 16C1, _9MPD100J14C1, _9MPDIOOJ20C1 &_9MPD125L20C1

(Natural Gas) _Denotes Brand

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

Description Part _gMPD

Non- Functional Number 128L20C

Key

No.

Panel,Top

Gasket,TopPanel

Partition,Blower

Housing,Blower

Panel, BlowerCutoff

Hanger,Blower

Door,Blower(Tempstaronly)

(Tempstaronly)

(Comfortmaker/Keepriteonly)

(Heil/Arcoaireonly)

Bracket,DoorFiller

1012866

1012867

1012868

1012603

1012604

1012605

1172008

1172005

1172006

1172007

1172885

1172969

721020013

721020008

1012328

1173015

1173016

1173082

1173009

1173010

1173072

1173012

1173013

1173075

1172232

050F120

078F120

080J160

100J14C

100J2OC

Door,Front(Tstaronly)

(Tstaronly)

(CmakerlKeepriteonly)

(HeillArcoonly)

Clamp,Capacitor

TransitionAssembly

Gasket,Blower

Board, Insulating

Box,Collector

Gasket, Transition

Gasket, Collector Box

Partition, Frt Ht Exchanger

W Gasket, Attachment Plate

1172233

1172234

1013154

1013155

1013156

1013148

1013149

1013150

1013145

1013146

1013147

1170643

1014315

1172228

1172229

1172230

1014428

1012418

1012419

1012420

1012244

1012245

1012246

1013263

1013080

1013083

1013084

1012594

1012595

1012596

1012650

1012648

1012651

1012653

1012542

1012543

1012544

1012545

44001 102102

IReplacement Parts - *gMPD

Models - _9MPDO5OF12C1, _9MPDO75F12C1, _9MPDO80J 16C1, _9MPD100J14C1, _9MPDIOOJ20C1 &_9MPD125L20C1

(Natural Gas) _Denotes Brand

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

_gMPD

Key Description

No. Non- Functional

X Cover,JunctionBox

Y Box,Junction

BB Manifold

CC Bottom,BurnerBox

DD Baffle,Burner Box

EE Top,BurnerBox

FF Bracket,ManifoldSupport

GG Bracket,BurnerBoxSide

HH Bracket,ControIMounting

JJ Tube, Sensor

KK Trap,Drain Assembly

LL Sightglass Comfortmaker& Heil

TempstarOnly

QQ Gasket,Trap

RR Bracket,Trap

SS Gasket,Trap Bracket

TT Tube, DrainColl. Box5/8" ID

UU Tube, DrainTee 1/2"ID

VV Tube, Relief

WW Drain Vent

YY Tee,Drain

ZZ Sightglass

)( PART NOTILLUSTRATED

)( DoorScrews

)( DoorScrewsGrommets

)( Coupling,Air Intake

)( Gasket,Air Intake

)( Clamp,Hose314"

)( Clamp,Hose5/8"

)( Coupling,Discharge

)( ClampHose

)( Grommet,Vent

)( Bushing,StrainRelief

)( Grommet,Vinyl(gas Inlet)

)( Harness,Wire

Part

Number

1012350

1172860

1012276

1012277

1012278

1012279

1172847

1172849

1172850

1012338

1012339

1012340

1013702

1013703

1013704

1012377

1012532

1172845

1172240

1172238

1172241

1171917

1013235

1013236

1013701

1171986

1171987

1172245

1171989

1172012

1014003

1171915

1172768

1014488

1171990

050F12C

075F12C

080J16C

100J14C

100J2OC

1012284

1012583

1012976

1012975

1002522

1013830

1012697

1945287

1009535

1172817

125L20C

44001 102102 [_

IReplacement Parts - *gMPD

Models - _9MPD050F12C1, _9MPD075F12C1, _9MPD080J 16C1, _9MPD100J14C1, _9MPD100J20C1 &_9MPD125L20C1

(Natural Gas) _Denotes Brand

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

_gMPD

Key Description

No. Non- Functional

)( Trap, DrainTee

)( Tube, I12"ID Drain

)( Tube, I12"ID Elbow

)( Coupling,I/2" Barbed

)( Tubeing,518"ID Drain

)( Connector,314"X I12"

)( Elbow,I12"CPVCStreet

)( Grommet,Casing

)( Tube, Relief Ext.

)( Connector,ReliefTube

)( Plate,Cover

)( Gasket,Cover Plate

)( Cap,Drain Tee

)( Clamp,TeeCap

)( InstallationManual

)( User'sManual

Pan

Number

1171916

1171991

1171992

1171993

1171994

1171995

1171996

1171997

1172239

1171998

1171999

1172000

1172255

1172256

44001102102

44102201100

050F12C

075F12C

080J16C

I00J14C

I00J20C

125L20C

_] 440 01 102102

ICP C9MPD050F12C1 User Manual 90+ SINGLE STAGE GAS FURNACE Manuals And Guides L0601175

ICP Furnace/Heater, Gas Manual L0601175 ICP Furnace/Heater, Gas Owner's Manual, ICP Furnace/Heater, Gas installation guides

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