ICP N9MPD075F12A2 90+ Single-Stage Gas Furnace installation Guide

(Upflow/ Downflow/Horizontal

These instructions must be read and understood completely before attempting installation.

Safety Labeling and Signal Words

Signal Words in Manuals

DANGER, WARNING, CAUTION, and NOTE

The signal words DANGER, WARNING,

CAUTION, and NOTE are used to identify levels of

hazard seriousness. The signal word DANGER is only used on product labels to signify an immediate hazard. The signal words WARNING, CAUTION, and NOTE will be used on product labels and throughout this manual and other manual that may apply to the product.

The signal word WARNING is used throughout this manual in the following manner:

4. WARNING

DANGER - Immediate hazards which will result in severe personal injury or death.

The signal word CAUTION is used throughout

this manual in the following manner:

4 CAUTION

WARNING - Hazards or unsafe practices which could result in severe personal injury or death.

Signal Words on Product Labeling

CAUTION - Hazards or unsafe practices which

may result in minor personal injury or product or property damage.

Signal words are used in combination with colors and/or pictures or product labels.

ZN Safety-alert symbol

NOTE - Used to highlight suggestions which will

When you see this symbol on the unit and in result in enhanced installation, reliability, or operation. potential for personal injury.

TABLE OF CONTENTS

Safety considerations ........ 4 yIN WAR | | | G

Safe Installation Requirements ..............00005 4

Installation... 2... 00.6. tenes 6 PERSONAL INJURY, AND/OR PROPERTY

Combustion & Ventilation Air ..............0.. 10

Vent and Combustion Air Piping ............0.

DAMAGE HAZARD

00s 14 _|Failure to carefully read and follow this warning could

Concentric Termination 0.0.0... 32 |result in equipment malfunction, property damage,

33

Electrical Wiring 2.2.0.0... 38

personal injury and/or death. o

Installation or repairs made by unqualified persons could

Ductwork and Filter .. 0.0... 2. cece eee 39

Checks and Adjustments ...........0 42 result in equipment malfunction, property damage, personal injury and/or death. a

Sequence of Operation & Diagnostics .............

45

46

Technical Support .. 0... ccc eee 48

‘\.

Ge

CERTIFIED

®

Prt CERTIFIED.

www. ahridirectory.arg

Use of the AHRI Certified TM Mark indicates a manufacturer’s participation in the program.

For verification of certification for individual products, go to www.ahridirectory.org .

International Comfort Products, LLC

procedures and equipped with proper tools and test instruments.

Installation must conform with local building codes and

with the Natural Fuel Gas Code (NFCG) NFPA 54/ANSI

2223.1, and National standards of Canada

CAN/CSA-B149.1 and .2 Natural Gas and Propane

Installation Codes.

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

CONSUMER: Retain

reference. these instructions for future Lewisburg, TN 37097 U.S.A. www.icpusa.com

Portions of the text and tables are reprinted from NFPA 54 /ANSI Z223,1-20096, with permission of National Fire Protection Association, Quincy, MA 02269 and American Gas Association, Washington, DC

20001. This reprinted material is not the complete and official position of the NFPA or ANSI, on the referenced subject, which is represented only by the standard in its entirety.

440 01 1024 04 Dec. 2010

Printed in U.S.A.

440 01 1024 04

Required Notice for Massachusetts Installations

Important

The Commonwealth of Massachusetts requires compliance with regulation 248 CMR as follows:

5.08: Modifications to NFPA-54, Chapter 10

2) Revise 10.8.3 by adding the following additional requirements:

For all side wall horizontally vented gas fueled equipment installed in every dwelling, building or structure used in whole or in part for residential purposes, including those owned or operated by the Commonwealth and where the side wall exhaust vent termination is less than seven (7) feet above finished grade in the area of the venting, including but not limited to decks and porches, the following requirements shall be satisfied:

1. INSTALLATION OF CARBON MONOXIDE DETECTORS. At the time of installation of the side wall horizontal vented gas fueled equipment, the installing plumber or gasfitter shall observe that a hard wired carbon monoxide detector with an alarm and battery back-up is installed on the floor level where the gas equipment is to be installed. in addition, the installing plumber or gasfitter shall observe that a battery operated or hard wired carbon monoxide detector with an alarm is installed on each additional level of the dwelling, building or structure served by the side wall horizontal vented gas fueled equipment. It shall be the responsibility of the property owner to secure the services of qualified license professionals for the installation of hard wired carbon monoxide detectors. a. In the event that the side wall horizontally vented gas fueled equipment is installed in a crawl space or an attic, the hard wired carbon monoxide detector with alarm and battery back-up may be installed on the next adjacent floor level.

2. b. In the event that the requirements of this subdivision can not be met at the time of completion of installation, the owner shall have a period of thirty (80) days to comply with the above requirement; provided, however, that during said thirty (80) day period, a battery operated carbon monoxide detector with an alarm shall be installed.

APPROVED CARBON MONOXIDE DETECTORS. Each carbon monoxide detector as required in accordance with the above provisions shall comply with NFPA 720 and be ANSI/UL 2034 listed and IAS certified.

3. SIGNAGE. A metal or plastic identification plate shall be permanently mounted to the exterior of the building at a minimum height of eight (8) feet above grade directly in line with the exhaust vent terminal for the horizontally vented gas fueled heating appliance or equipment. The sign shall read, in print size no less than one-half (1/2) inch in size, “GAS VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS”.

2.

4.

EXEMPTIONS: The following equipment is exempt from 248 CMR 5.08(2)(a) 1 through 4:

1.

2.

The equipment listed in Chapter 10 entitled “Equipment Not Required To Be Vented” in the most current edition of NFPA 54 as adopted by the

Board; and

Product Approved side wall horizontally vented gas fueled equipment installed in a room or structure separate from the dwelling, building or structure used in whole or in part for residential purposes.

MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM PROVIDED. When the manufacturer of Product Approved side wall horizontally vented gas equipment provides a venting system design or venting system components with the equipment, the instructions provided by the manufacturer for installation of the equipment and the venting system shall include:

1.

2.

(d)

INSPECTION. The state of local gas inspector of the side wall horizontally vented gas fueled equipment shall not approve the installation unless, upon inspection, the inspector observes carbon monoxide detectors and signage installed in accordance with the provisions of 248 CMR

5.08(2)(a) 1 through 4.

Detailed instructions for the installation of the venting system design or the venting system components; and

Acomplete parts list for the venting system design or venting system.

MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM NOT PROVIDED. When the manufacturer of a Product Approved side wall horizontally vented gas fueled equipment does not provide the parts for venting the flue gases, but identifies “special venting systems”, the following requirements shall be satisfied by the manufacturer:

1. The referenced “special venting system” instructions shall be included with the appliance or equipment installation instructions; and

The “special venting systems” shall be Product Approved by the Board, and the instructions for that system shall include a parts list and detailed installation instructions.

A copy of all installation instructions for all Product Approved side wall horizontally vented gas fueled equipment, all venting instructions, all parts lists for venting instructions, and/or all venting design instructions shall remain with the appliance or equipment at the completion of the installation.

For questions regarding these requirements, please contact the Commonwealth of Massachusetts Board of State Examiners of Plumbers and Gas

Fitters, 239 Causeway Street, Boston, MA 02114. 617-727-9952

Specifications are subject to change without notice. 2

START-UP CHECK SHEET

For 90+ Furnace

(This sheet is optional. Keep this page for future reference.)

Date of Start-Up:

Dealer Name:

Address:

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

Phone:

Owner Name:

Address:

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

Model Number:

Serial Number:

Setup Checks

Check the box when task is complete

All Electrical Connections Tight?

Have hoses been relocated for furnace application

(upflow/horizontal)?

Condensate Drain Connected?

Condensate Drain Trapped?

_

_

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

Gas Valve turned ON?

=

Type of Gas: Natural: J

Propane: J

Filter Type and Size:

Calculated Firing Rate:(See Checks and Adjustments

Section).

Heating Check

Measured Line Pressure when Firing Unit:

Measured Manifold Gas Pressure:

Temperature of Supply Air:

Temperature of Return Air:

Temperature Rise (supply-return temperature):

In Rise (see furnace rating plate)?

Static Pressure (Ducts): Supply Air Return

Which blower speed tap is used? (Heating)

Optional Check: CO? “$s «COR?

Cooling Check

Temperature of Supply Air:

Temperature of Return Air:

Temperature Difference:

Static Pressure (Ducts) cooling: Supply Air__

Return __

Blower Speed Tap used for cooling:

Dealer Comments:

440 01 1024 04

Specifications are subject to change without notice.

SAFETY CONSIDERATIONS

Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock, or other conditions which may cause death, personal injury, or property damage. Consult a qualified installer, service agency, or your distributor or branch for information or assistance. The qualified installer or agency must use factory—authorized kits or accessories when modifying this product. Refer to the individual instructions packaged with the kits or accessories when installing.

Follow all safety codes. Wear safety glasses, protective clothing, and work gloves. Use quenching cloth for brazing operations. Have fire extinguisher available.

Read these instructions thoroughly and follow ali warnings or cautions included in literature and attached to the unit. Consult local building codes, the current

editions of the National Fuel Gas Code (NFCG) NFPA

B54/ANSI Z223.1, and the National Electrical Code (NEC)

NFPA 70.

In Canada refer to the current editions of the National standards of Canada CAN/CSA-B149.1 and .2 Natural

Gas and Propane Installation Codes, and Canadian

Electrical Code CSA C22.1.

Recognize safety information. This is the safety—alert symbol AX | When you see this symbol on the unit and in instructions or manuals, be alert to the potential for personal injury. Understand these signal words;

DANGER, WARNING, and CAUTION. These words are used with the safety—alert symbol. DANGER identifies the most serious hazards which will result in severe personal

injury or death. WARNING signifies hazards which could result in personal injury or death. CAUTION is used to

identify unsafe practices which may result in minor personal injury or product and property damage. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.

Safe Installation Requirements

4___ WARNING

FIRE, EXPLOSION, AND ASPHYXIATION HAZARD

Improper adjustment, alteration, service, maintenance or installation could cause personal injury, death 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 having jurisdiction.

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.

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.

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could cause personal injury or death.

Before performing service or maintenance operations on unit, always turn off main power switch to unit and install lockout tag. Unit may have more than one power switch.

4. WARNING

CARBON MONOXIDE POISONING AND FIRE

HAZARD

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

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

4. CAUTION

CUT HAZARD

Failure to follow this caution may result in damage personal injury.

Sheet metal parts may have sharp edges or burrs.

Use care and wear appropriate protective clothing, safety glasses and gloves when handling parts and servicing furnaces. e 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 Propane gas with approved kit.) e Install this furnace only in a location and position as specified in “Installation” of these instructions. e Provide adequate combustion and ventilation air to the furnace as specified in “Combustion and Ventilation Air’ of these instructions.

¢ Combustion products must be discharged outdoors.

Connect this furnace to an approved vent system only, as specified in “Vent and Combustion Air Piping” of these instructions. e Never test for gas leaks with an open flame. Use a commercially available soap solution made specifically for the detection of leaks to check all connections, as specified in “Gas Supply and Piping, Final Check” of these instructions. e Always install furnace to operate within the furnace’s intended 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 instructions. See furnace rating plate.

440 01 1024 04

Specifications are subject to change without notice

e When a furnace is installed so that supply ducts carry air circulated by the furnace to areas outside the space containing the furnace, the return air shall also be handied by a duct(s) sealed to the furnace casing and terminating outside the space containing the furnace. e A gas-fired furnace for installation in a residential garage must be installed as specified in “Installation” of these instructions. e This furnace is not to be used for temporary heating of buildings or structures under construction. e This furnace is NOT approved for installation in mobile homes, trailers or recreation vehicles. e Seal around supply and return air ducts. e Install correct filter type and size. e Unit MUST be installed so electrical components are protected 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.

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.

B.

Therefore, to help alert people of potentially dangerous carbon monoxide levels, you should have a commercially available carbon monoxide alarm that is listed by a nationally recognized testing agency in accordance with Underwriters

Laboratories Inc. Standard for Single and Multiple Station

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

Residential Carbon Alarming Devices installed and maintained in 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 instructions.

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

Laboratories 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:

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

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

Immediately call a qualified service technician to inspect the unit and to replace any part of the control system and any gas control which has been under water.

3. Never obstruct the vent grilles, or any ducts that provide air to the unit. Air must be provided for proper combustion and ventilation of flue gases.

Frozen Water Pipe Hazard

4 _ CAUTION

WATER DAMAGE TO PROPERTY HAZARD

Failure to follow this caution 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 devices 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. 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-

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

Winter Shutdown

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

Figure 11 trough Figure 20)

1. Disconnect the 5/g”(15.9mm) OD rubber hose from the vent drain fitting that is located downstream of the combustion blower. Insert a funnel into the hose and pour four(4) ounces of sanitary type (RV) antifreeze into the condensate trap.

Reconnect the 5/3”(15.9mm) OD rubber hose to the stub on the vent drain fitting. Secure with the hose clamp.

2. Disconnect the 3/4” (15.9mm)OD rubber hose from the condensate trap. Insert a funnel into the hose and and pour four(4) ounces of sanitary type (RV) antifreeze into the plastic Transition box. Squeeze the hose together near the end and quickly reconnect the 9/4” (19.1mm) 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.

440 01 1024 04


Installation

4 WARNING

CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in personal injury or death. connected to any type B, BW or L vent or vent

_hui masonry chimney. If this furnace is replacing a previously 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 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

2. typical horizontal direct vent installation and basic connecting parts required. Supply and return air plenums and duct are also required.

If furnace is a replacement, it is usually best to install the furnace where the old one was. Choose the location or wo , . evaluate the existing location based upon the minimum

clearance and furnace dimensions (Figure 3).

Typical Upflow Installation

Aluminum or non-rusting shield recommended. (See Vent

‘or .

8” (203.2mm) Min.

20’ (6.1m) Max.

atmospheric me

Termination Shielding for dimensions).

_

—»|

CID,

<—

Inlet Pipe g [[<—otusedon f, Ey model

/ i\!

\

\ pipe & coupling out-

| side structure = 8”

|

LA

| | (203.2mm)

—— elo

Vent Pipes MUST be supported

Vertically

a oO

<

5

Z

=e |

L

©

)

<==

AL a ag”

20’ (6.1m) Max.

in same atmospheric zone

—* lL

* Increase minimum from 8” (203.2mm) to 18” (457.2mm) for cold climates (sus-

F (-17° C) and below for 24 or more consecutive hours).

25-23-33

Typical Downflow Installation

See Vent Termination

Shielding in Vent Section. Coupling on inside

>

\

\

\ an outside a wall to

} . rainven’ pipe inlet Pipe = GU *8” (203.2mm) Min \ \

. 20 (6.1m) Mex in \ 8” Min. model} b&b same atmospheric zone \

L

L \

Vent Pipes MUST be supported Hori-

zontally and Vertically

|

* Increase minimum from 8” (203.2mm) to 18” (457.2mm) for cold climates (sustained temperatures 0° F (-17° C) and below for 24 or more consecutive hours).

25-23-33a

A WAR | | | G

. .

Do NOT operate furnace in a corrosive atmosphere

. . :

Refer to Combustion & Ventilation Air section,

. . . : damage.


Failure to follow this warning could result in personal injury or death

.

evaluation and remedy.

.

A CAU an ‘e) N

Failure to follow this caution may result in property

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.

6 440 01 1024 04


1.

Installation Requirements

Install furnace level.

2. This furnace is NOT to be used for temporary heat of buildings or structures under construction.

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

Installation section).

Do NOT install furnace directly on carpeting, tile or other combustible material other than wood flooring.

Maintain clearance for fire safety and servicing. A front clearance of 24” (609.6mm) required and 30” (762mm) recommended for access to the burner, controls and filter.

See clearance requirements in Figure 3.

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

Residential garage installations require:

Burners and ignition sources installed at least 18”

(457.2mm) above the floor.

Furnace must be located or physically protected from possible damage by a vehicle.

If the furnace is to be suspended from the floor joists in a basement 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 application.

This furnace may be used for construction heat provided that all the following conditions are met:

The furnace is permanently installed with all electrical wiring, 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 minimize the corrosive effects of adhesives, sealers and other construction materials. It also prevents the entrainment of drywall dust into combustion air, which can cause fouling and plugging of furnace components.

The temperature of the return air to the furnace is maintained between 55° F (18° C) and 80° F (27° C) , with no evening setback or shutdown. The use of the furnace while the structure is under construction is deemed to be intermittent operation per our installation instructions.

The air temperature rise is within the rated rise range on the furnace rating plate, and the firing rate has been set to the 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 conditions including ignition, input rate, temperature rise and venting according to these instructions.

440 01 1024 04


Dimensions & Clearances

—|_ Ff MINIMUM CLEARANCES TO

COMBUSTIBLE MATERIALS FOR ALL UNITS

_- AIR INTAKE

TOP MS

|

C 5

;—

G |

|

H

TE

(Per .

A

B

FRONT rea

FRONT (combustion air openings | 3” (76.2) in furnace and in structure)

Required For Service *24” (609.6)

ALL SIDES Of SUPPLY PLENUM 1” (25.4)

SIDES 0

VENT 0

TOP OF FURNACE 1” (25.4)

*30” (762mm) clearance recommended for fumace removal.

_| ELECTRICAL

L od

° 32

Horizontal position: Line contact is permissible only between

¢ lines formed by intersections of top and two sides of furnace —enfe— 11lyp (27)

VENT—~ net 7 13°1f, jacket, and building joists, studs or framing.

L

AIR INTAKE (KO) oN

(ALTERNATE) “45, oA L— 5 |

(347.4

3411)

(B04:

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.

|

TRAP (KO) (122.2)

UPFLOW/HORIZONTAL ~

8

2a ie : i

13%,

(336.6}

THERMOSTAT

|

| | _~ (KO)

—

4

(1778) ~ we

(439°9) mh, ,

2g}

+

24 lg

|

| j

17)

(a7)

i

215) aig |.

(549.3) (123.8)

(Bbo.6)

4913)

(503.2)

—

—.|

I ON |

bp

Lo

BOTTOM

4

; i c I. 231g | — 3g

ALL DIMENSIONS - IN(MM)

1 in = 25.4mm

Unit

Capacity

N9MP1040/050B

NOMP11 00/125" aA

N9MP1060/075B""

N9MP1080/100F"*

NSMP2050/075B**

NoMP2080/100F""

A

(587.4)

Cabinet

B c

Bottom

D

(98.4)

NOMPe 100/125)

NOMPD125L™"

*9MPDO50/075F"*

*

”

N9MPDO40/050E**

NSMPDO60/075F**

NeMPDo8o/t 00"*

Denotes Brand

*9MPD080/100J"*

*9MPD125L"* f

; 4

\ a

(31.7)

_ " \ es.

NN .

RIGHT SIDE GAS. oH / ff TRAP (COUNTERFLO

W)

+4)

Pon a -ELECTRICAL (KO) i

_AIR INTAKE (KO) o Fre" (ALTERNATE) woe

16

(30) i

/

8

(124)

:

"7 i

11/4 6(43}-

| t _ i

(122)

|

°

(De

_ N\ |_/

_ VENT (KO)

TRAP (KO)

(251)

331 hg

(856)

913/46

~

ars

(69) 5 t

| (649)

1Phig

(440) 411 \ ;

I i a7

L

\

THERMOSTAT

24

5 at lg

(649)

KO = KnockOut

~

/

;

«

5,

—- ig

AN Drawing is representative, but some models may vary Cooling Air Flow

440 01 1024 04

Specifications are subject to change without notice i

281/y (724)

——

(610)

181).

2

(470)

(489)

1 a

(19)

TYP.

2h, (67)

19"4

(KO) a

3/4

|

25-23-36b t

;

Knock Outs

A__CAUTION

CUT HAZARD

Failure to follow this caution may result in personal injury.

Sheet metal parts may have sharp edges or burrs.

Use care and wear appropriate 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.

Leveling

Hammer and Screwdriver used for Knockout

25-40-06

NOTE: If a knockout 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 attached to either the left or right side panel and/or the bottom. For horizontal and downflow positions, the return air ductwork must be attached to the bottom. The return air ductwork must never be attached to the back of the furnace.

Furnace Installation Considerations

The installation of the furnace for a given application will dictate the position of the furnace, the airflow, ductwork connections, vent and combustion air piping. Consideration must be given to the following:

Condensate Trap and Drain Lines

The supplied condensate trap must be attached to the furnace side panel on either the left or right side. For horizontal installations, the drain trap is vertically attached to the side panel below the furnace. A minimum clearance of 6” (152.4mm) below the furnace is required for the condensate trap. Downward slope of the condensate 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.

Proper leveling of the furnace must be provided to insure proper drainage of the condensate from the furnace. The furnace must be level to within 1/4” (6.4mm) from front to back and from side to side for upflow and downflow installations or top to bottom for horizontal installations.

Vent and Combustion Air Connections

For venting information literature, call 931.270.4100 with the complete model and serial number of the furnace.

Special Venting Requirements for Installations in Canada

Installation in Canada must conform to the requirements of CSA

B149 code. Vent systems must be composed of pipe, fittings, cements, and primers listed to ULC S636. The special vent fittings and accessory concentric vent termination kits and accessory external drain trap have been certified to ULC S636 for use with those Royal Pipe and IPEX PVC vent components which have been certified to this standard. In Canada, the primer and cement must be of the same manufacturer as the vent system — GVS-65

Primer (Purple) for Royal Pipe or IPEX System 686, PVC/CPVC

Primer, Purple Violet for Flue Gas Venting and GVS-65 PVC

Solvent Cement for Royal Pipe or IPEX System 636,41)", PVC

Cement for Flue Gas Venting, rated Class IIA, 65 deg C. must be used with this venting system - do not mix primers and cements from one manufacturer with a vent system from a different manufacturer. Follow the manufacturer's instructions in the use of primer and cement and never use primer or cement beyond its expiration date.

The safe operation, as defined by ULC S636, of the vent system is based on following these installation instructions, the vent system manufacturer's installation instructions, and proper use of primer and cement. All fire stop and roof flashing used with this system must be UL listed material. Acceptability under Canadian standard CSA B149 is dependent upon full compliance with all installation instructions. Under this standard, it is recommended that the vent system be checked once a year by qualified service personnel.

The authority having jurisdiction (gas inspection authority, municipal building department, fire department, etc) should be consulted before installation to determine the need to obtain a permit.

(1) System 636 is a trademark of IPEX Inc.

Consignes spéciales pour I’installation de ventillation au

Canada

Linstallation faite au Canada doit se conformer aux exigences du code CSA B149. Ce systéme de ventillation doit se composer de tuyaux, raccords, ciments et appréts conformes au ULC S636. La tuyauterie de ventillation des gaz, ses accessoires, le terminal concentrique mural ainsi que l'ensemble du drain de condensat extérieur ont été certifiés ULCS 636 pour l’application des composantes Royal Pipe, IPEX PVC qui sont certifies a ce standard. Au Canada, l’apprét et le ciment doivent étre du méme fabricant que le systeme d’évacuation. Lapprét GVS-65 (Purple) et le ciment-solvant GVS-65 doivent étre utilisé avec les Royal

Pipe. Systeme IPEX 636, apprét PVC/CPVC, Purple pour evacuation des gaz de combustion et systeme IPEX 636(1)™, ciment PVC pour évacuation des gaz de combustion, coté classe

IIA, 65 deg C. doivent étre utilisés avec le systeme d’évacuation

IPEX 636 — Ne pas combiner lapprét et le ciment d’un manufacturier avec un systeme d’évacuation d’un manufacturier différent.

Bien suivre les indications du manufacturier lors de |'utilisation de l'apprét et du ciment et ne pas utiliser ceux-ci si la date d’expiration est atteinte.

Lopération sécuritaire, tel que définit par ULC S686, du systeme de ventilation est basé sur les instructions d’installation suivantes, ainsi que l'usage approprié de l’apprét et ciment. Tout arrét feu et solin de toit utilisés avec ce systeme doivent étre des matériaux listés UL. Lacceptation du standard Canadien CSA B419 est directement relié a l’installation conforme aux instructions ci- haut

440 01 1024 04


Typical Horizontal Installation

Attic

Inlet Pipe (not used on Single Pipe model)

JIE mentionnées. Le standard Canadien recommande |’inspection par un personel qualifié et ce, une fois par année.

Les autoritées ayant juridiction (inspecteurs de gas, inspecteurs en batiments, département des incendies, etc) devraient étre consultées avant l'installation afin de déterminer si un permis est requis.

On the N9MPD or *9MPD furnace, the vent and combustion air pipes attach to the furnace through the top panel for the upflow and horizontal 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 N9MP2 furnace, the vent pipe attaches to the furnace 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

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 adversely 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” (152.4mm) bottom clearance required for condensate trap.

24”(609.6mm) between the front of the furnace and adjacent construction or other appliances MUST be maintained for service clearance. 30” (762mm) inches is required to remove furnace.

Combustion & Ventilation Air

For Single Pipe Installation

OM ANS AE:


Failure to follow this warning could result in personal injury or death.

Provide adequate combustion and ventilation air.

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 openings for supplying combustion and ventilation air must comply with the gas codes, or in the absence of local codes, the applicable national codes.

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

Note: The Combustion & Ventilation Air Section in this document, uses tables and information from the ANSI 2223.1/NFPA

54. For use in Canada, use CSA B149.1 for this information.

1. Section 9.3, Air for Combustion and Ventilation, of the National

Fuel Gas Code, (NFGC), ANSI 2223.1/NFPA 54-2009 in the

US.,

2. Sections 8.2, 8.3, 8.5, 8.6, 8.7, and 8.8 of National Standard of

Canada, Natural Gas and Propane Installation Code

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

8. Applicable provisions of the local building code.

A

NOTE: 6” (152.4mm)bottom clearance required for condensate trap.

Auxiliary drain pan is required if over a finished living space.

25-23-34

Keep all insulating materials clear from louvered 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 clearances 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 fabricated auxiliary drain pan with drain pipe is required to prevent damage by overflow due to blocked condensate drain.

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. 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 prevent oversizing problems for the other remaining appliance(s). See “Venting and Combustion Air Check” in this section. This furnace MUST be vented to the outside.

When the installation is complete, check that all appliances have adequate combustion air and are venting properly. See Venting

And Combustion Air Check in “Gas Vent Installation” Section in this manual.

Outdoor Combustion Air Method

A space having less than 50 cubic feet per 1,000 BTUH (4.8 cubic meters per kW) 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” (6.4mm) mesh.

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

3” (76.2mm).

10 440 01 1024 04


5. When sizing a grille, louver, or screen use the free area of opening. If free area is NOT stamped or marked on grill or louver, assume a 20% free area for wood and 60% for metal.

Screens shall have a mesh size not smaller than 1/4” (6.4mm).

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. a. One opening MUST commence within 12” (304.8mm) of the floor and the second opening MUST commence within 12” (304.8mm) of the ceiling. b. Size openings and ducts per Table 1.

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

Gas Ven This installation NOT approved in Canada

Gable Vent

Gas Vent p

1 MW” = Ventilated Attic

Outer’ 4

:

Air (1) va

Furnace

Top Above Insulation

CT alternate Inlet Air (1) v4

Fs TANG

| utlet Air (1)

PACE Ty

Sonit Vent alternate Inlet Air (1) oumren

Ga

Gable Vent

Ventilated Attic

Top Above Insulation

Inlet Furnace

|

0 =

Furnace

I ee

Inlet

Minimum One Inlet and One Outlet Air Supply is Required

May be in any Combination Shown

Inlet Air Opening must be within 12” (304.8mm) of floor

. thin 49” an

(1) 1 Square Inch per 4000 BTUH

(2) 1 Square Inch per 2000 BTUH c. Horizontal duct openings require 1 square inch of free area per 2,000 BTUH (11 cm4/kW) of combined input for shall communicate through a vertical or horizontal duct to the outdoors or spaces (crawl or attic) that freely communicate with all gas appliances in the space (see Table 1). the outdoors.

Outlet

Air (2) d. Vertical duct openings or openings directly communicating with the outdoors require 1 square inch of free area per 4,000 BTUH (5.5 cm2/kW) for combined input of all gas appliances in the space (see Table 1).

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

Combustion Air Method below and

Indoor b. Outdoor openings located as required in the Outdoor

Combustion Air Method above and

3. When one permanent outdoor opening is used, the opening requires: c. Outdoor openings sized as follows. a. 1 sq. in of free area per 3,000 BTUH (7 cm?/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” (804.8mm) of the top of the enclosure. Appliances shall have clearances of at least 1”

(25.4mm) from the sides and back and 6” (152.4mm) from the front. The opening shall directly communicate with the outdoors or

BTUH (kW)

Free Area

BTUH (kW) sq. in./2,000(1 cm2/.09) sq. sq. sq. sq. sq. sq. sq.

EXAMPLE: Determining Free Area

Furnace

400,000

29.31

Furnace

Water Heater

30,000

8.38

Water Heater

BTUH (kW) sq. in./3,000 (1 cm?/.135) sq. sq. sq. sq. sq. sq.

Sq.

Total Input

(130,000 + 4,000)

(38.11 + .18)

Total Input

1) Calculate the Ratio of all Indoor Space volume divided by required volume for Indoor Combustion Air

Method.

2) Outdoor opening size reduction Factor is 1 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. or

BTUH (kW) sq. in./4,000(1 cm2/.18) sq. sq. sq. sq. sq. sq. sq.

BTUH (kW) sq. in./4,000(6.5cm2/.18)

32.5 Sq. In. Vertical

210 cm Vertical

400,000 30,000 (130,000 + 2,000)

29.31 8.38

65 Sq. In. Horizontal

423 cm? Horizontal

(38.11 + .09)

440 01 1024 04


Indoor Combustion Air

4 WARNING



Most homes will require additional air from outdoors for combustion and ventilation. A space with at least 50 cubic feet per 1,000 BTUH (4.8 cubic meters per kW) 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.

Standard and Known-Air-Infiltration Rate Methods

© NFPA & AGA

Indoor air is permitted for combustion and ventilation, if the

Standard or Known-Air-lInfiltration Rate Method is used.

The Standard Method may be used, if the space has no less volume than 50 cubic feet per 1,000 BTUH (4.8 cubic meters per kW) input rating for all gas appliances installed in the space. The standard method permits indoor air to be used for combustion and ventilation air.

The Known Air Infiltration Rate Method shall be used if the infiltration rate is known to be less than 0.40 air 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 volume for the space.

A WARNING



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

Most homes will require additional air.

ACH

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

Other Than Fan-Assisted Total Fan-assisted Total

30,000 BTU 40,000 BTU 50,000 BTU 50,000 BTU 75,000 BTU 100,000 BTU 125,000 BTU

(8,790 kW) (11,720 kW) (14,650 kW) (14,650 kW) (21,975 kW) (29,300 kW) (36,625 kW) ff (m°)

0.60 1,050 (29.7) 1,400 (39.2) 1,750 (49) 1,250 (35) 1,875 (52.5) 2,500 (70) 3,125 (87.5)

0.50 1,260 (35.3) 1,680 (47.04) 2,100 (58.8) 1,500 (42} 2,250 (63) 3,000 (84) 3,750 (105)

0.40 1,575 (44.1) 2,100 (58.8) 2,625 (73.5) 1,875 (52.5) 2,813 (78.8) 3,750 (105) 4,688 (131.3)

0.30 2,100 (58.8) 2,800 (78.4) 3,500 (98) 2,500 (70) 3,750 (105) 5,000 (140) 6,250 (175)

0.20 3,150 (88.2) 4,200 (117.6) 5,250 (147) 3,750 (105) 5,625 (157.5) 7,500 (210) 9,375 (262.5)

0.10 6,300 (176.4) 8,400 (235.2) 10,500 (294) 7,500 (210) 11,250 (315) 15,000 (420) 18,750 (525)

0.00 NP NP NP NP NP NP NP

ACH = Air Changes per Hour

NP = Not Permitted

Table 2 Minimum Space Volumes were determined by using the following equations from the National Fuel Gas Code ANSI

2223.1/NFPA 54-2009, 9.3.2.2: where:

Ifan = fan-assisted appliance input in BTUH

1. For appliances other than fan-assisted appliances (such as a draft hood-equipped water heater), calculate using the following equation:

ACH = air change per hour (percent of volume of space exchanged per hour, expressed as a decimal)

I other

Required Volume other >

21 ft

“ACH

) 3. For purposes of this calculation, an infiltration rate greater than 0.60 ACH shall not be used in the equations above.

1000 BTUH

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

59 m3 I other

e Adjoining rooms can be considered part of a space, if there are no closable doors between rooms.

ACH 293 kW

2. For fan-assisted appliances (such as this furnace), calculate using the following equation:

;

Required Volume fan =

;

Required Volume fan >

~~

15 ft3 (tin

ACH 1000 BTUH

42m

3

ACH

I¢

(tin

293 kW

)

) e Combining spaces on the same story. Each opening shall have a minimum free area of at least 1 in.2/1,000 BTUH (22 cm?/kW) of the total input rating of all appliances in the space

but not less than 100 in.2 (645 cm2). One opening shall

commence within 12 in. (304.8 mm) of the top, and one opening shall commence within 12 in. (304.8 mm) of the bottom, of the enclosure. The minimum dimension of air openings shail not be less than 3 in (76.2 mm). e Combining spaces in different stories. The volumes of spaces on different stories shall be considered as communicating spaces where such spaces are connected by one or more

12 440 01 1024 04


openings in doors or floors having a total minimum free area of 2 in.2/1,000 BTUH (44 cm2/kW) of total input rating of all appliances. e 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 remain open and NOT have any means of being closed off.

Ventilation openings to outdoors MUST be at least 1 square inch of free area per 4,000 BTUH (5.5 cm?/kW) of total input rating for all gas appliances in the space. e In spaces that use the Indoor Combustion Air Method, infiltration 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 provided using the methods described in section titled

Outdoor Combustion Air Method: e Unusually tight construction is defined as Construction with:

1. Walls and ceilings exposed to the outdoors have a continuous, 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 replacement air. Whichever method is used, the mixed return air temperature 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 Draft Hood

Typical Gas

Water Heater

Vu Match

If flame pulls towards draft hood, this indicates sufficient venting.

NOTE: When an existing Category | furnace is removed or replaced, the original venting system may no longer be sized to properly vent the attached appliances, and to make sure there is adequate combustion air for all appliances, MAKE THE

FOLLOWING CHECK.

4___ WARNING


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

2223.1/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.

8. 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. Follow the 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

2223.1/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 factory—built or masonry chimney. If this furnace is replacing a previously common-vented furnace, it may be necessary to resize the existing vent and chimney to prevent oversizing problems for the other remaining appliance(s). See “Venting and Combustion

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

440 01 1024 04


Vent and Combustion Air Piping

Vent and Combustion Air Piping Guidelines


Single Pipe (N9MP1 Models)

This furnace is approved for venting with Schedule 40 PVC,

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


Use methods described here to provide combustion and ventilation air.

Applicable ASTM Standards for Vent Materials

Cell

.

Materials

Sch. 40

Pipe

SDR

Pipe

-_

Fittings

.

Primer

Solv.

Cement pore ipe

D2468

ABS D1527 _ F628 & -- D2235

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

When the installation is complete, see the “Venting and

Combustion Air Check’ in this manual.

Dual Certified (N9MP2, NOSMPD and *9MPD

D2661

D2466

Pvc D1785 | D2241 F8ot & F656

-- -- --

D2564

D2665

CPVC F441 F442 -- F438 -- F493

-- -- D3138

NOTE: 1) In Canada, all pipe, fittings & cements must conform to applicable CSA standards or to local codes having jurisdiction.

Models)

This furnace is certified as a Category IV appliance. This furnace can be installed as a direct vent furnace using outside air for combustion or the furnace can use air from inside the structure for combustion. The INLET air pipe is optional. If combustion air comes from inside the structure, adequate make up air MUST be provided to compensate for oxygen burned. See Confined Space

Installation in the Combustion and Ventilation Air chapter. If combustion air is drawn from outside the structure, it MUST be taken from the same atmospheric pressure zone as the vent pipe.

Contaminated Combustion Air

2) Only use solvent cements that are marked for use with the specific venting material.

3) ABS to PVC transition joints REQUIRE a special solvent cement that meets the requirements of ASTM D3138.

4) Refer to ASTM D2855 for general procedure to use for cementing plastic pipe and fittings.

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 exposure to the substances listed below. The installation must be evaluated carefully as it may be necessary to provide outside air for combustion. e Commercial buildings. e Buildings with indoor pools. e Furnaces installed in laundry rooms. e Furnaces installed in hobby or craft rooms.

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. e Furnaces installed near chemical storage areas. e Permanent wave solutions for hair. e Chlorinated waxes and cleaners. e Chlorine based swimming pool chemicals. e Water softening chemicals. e De-icing salts or chemicals. e Carbon tetrachloride. e Halogen type refrigerants. e Cleaning solvents (such as perchloroethylene). e Printing inks, paint removers, varnishes, etc. e Hydrochloric acid. e Sulfuric Acid. e Solvent cements and glues. e Antistatic fabric softeners for clothes dryers. e Masonry acid washing materials.

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 Instruction For Horizontal 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/,” per foot per

(6.4mm per 304.8mm) 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 elbows 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 material. NO sags or dips are permitted.

14 440 01 1024 04


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

(1.8m) where accessible.

12. The minimum vent length is 5’ (1.5m) of PVC.

13. The piping can be run in the same chase or adjacent to supply 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(60°C). or where radiated heat from adjacent surfaces would exceed 140° F(60°C).

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. e The termination clearances shown in Figure 8 & Figure 9 are maintained.

16. Furnace applications with vertical vents requiring vent diameter increaser fittings must have increaser fittings installed in vertical portion of the vent. Condensate will be trapped in the vent if the vent diameter is increased prior to having an elbow turned upward. This could cause nuisance tripping of the pressure switch.

Combustion Air and Vent Piping Insulation

Guidelines

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

Fiberglass or equivalent insulation is used it must have a vapor barrier. Use R values of 7 up to 10’ (8.1m), R-11 if exposure exceeds 10’(3.1m). If Fiberglass 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” (762mm) or if an exterior vertical riser is used on a horizontal vent to get above snow levels, the exterior portion MUST be insulated.

2. When combustion air inlet piping is installed above a suspended ceiling, the pipe MUST be insulated with moisture resistant insulation such as Armaflex or other equivalent type of insulation.

8. Insulate combustion air inlet piping when run in warm, humid 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 linear vent length

(on inlet or outlet side), and number of 90° elbows required. Two

45° elbows can be substituted for one 90° elbow. The elbow or elbows 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

N9MPD and *9MPD IS NOT included in the count.

Pipe Diameter Table

N9SMP1, NSMPD & *9MPD Models

40,000, 50,000, 60,000, 75,000 & 80,000 Btuh Furnaces

40’ (12.2m) & (5) 90° elbows with 2” (50.8mm) PVC pipe or

70’ & (5) 90° elbows with 3” (76.2mm) PVC pipe

100,000 Btuh Furnace


70’ & (5) 90° elbows with 3” (76.2mm) PVC pipe &

Long Vent Kit (See Tech. Manual)


40’ & (5) 90° elbows with 3” (76.2mm) PVC pipe

The minimum vent length is 5’ (1.5m) of PVC. Elbows are DWV

Long Radius Type for 2” (50.8mm) and 3” (76.2mm) vents.

If more than five elbows are required, REDUCE the length of both the inlet and exhaust pipes 5’ (1.5m) for each additional elbow used. If less than five elbow are required, the length can be INCREASED by 5’ (1.5m) for each additional elbow

NOT 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

NSMP2 Models

50,000 & 80,000 Btuh Furnaces


70 (21.3m) & (5) 90° elbows with 3” (76.2mm) PVC pipe

75,000 Btuh Furnaces

25’ & (3) 90° elbows with 2” (50.8mm) PVC pipe or

40’ (12.2m) & (5) 90° elbows with 2” (50.8mm) PVC pipe &

Long Vent Kit (See Tech. Manual) or

70’ (21.3m) & (5) 90° elbows with 3” (76.2mm) PVC pipe



70’ (21.3m) & (5) 90° elbows with 3” (76.2mm)PVC pipe &

Long Vent Kit (See Tech. Manual)


40’ (12.2m) & (5) 90° elbows with 3” (76.2mm) PVC pipe

The minimum vent length is 5’ (1.5m) of PVC. Elbows are DWV

Long Radius Type for 2” (50.8mm) and 3” (76.2mm) vents.

If more than five elbows are required, REDUCE the length of both the inlet and exhaust pipes 5’ (1.5m) for each additional elbow used. If less than five elbows are required, the length can be INCREASED by 5’ (1.5m) for each additional elbow

NOT 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 vent pipe diameter see Concentric

Termination tables in this manual.

Vent Termination Clearances

CARBON MONOXIDE POISONING.


Inlet and outlet pipes may NOT be vented directly above each other.

1. Determine termination locations based on clearances specified in following steps and as shown in Figure 8,

Figure 9, Figure 22, through Figure 24.

For concentric vent termination clearances,

Concentric Termination Kit instructions. refer to

2. For Single Pipe Installation, models N9MP1, N9MP2,

N9OMPD or *9MPD, refer to Figure 9 for vent termination clearances.

3. For Direct Vent Installation, models N9MP2, N9MPD or

*OMPD, refer to Figure 8 for vent termination clearances.

440 01 1024 04 15


VENT TERMINAL

| Direct Vent Termination Clearance

(X) AIR SUPPLY INLET

AREA WHERE TERMINAL IS NOT PERMITED ltem Clearance Description Canadian Installation (1) US. Installation (2)

A Clearance above grade, veranda, porch, deck, balcony, or 12” (30cm) # 12” (30 cm) anticipated snow level

B Clearance to a window or door that may be opened 12” (30 cm) for appliances > 10,000 Btuh (3 kW) and < 9” (23 cm} for appliances > 10,000 Btuh (3 kW) and < 50,000

100,000 Btuh (30 kW), 36” (91 cm) for appliances > 100,000 | Btuh (14.7 kW), 12” (30 cm) for appliances > 50,000 Btuh (14.7

Btuh (30 kW) kW)

Cc 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 centerline 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 centerline extended above 3 (91 cm) within 15” (4.5 m) above the meter/regulator * electrical meter or gas service regulator assembly

| Clearance to service regulator vent outlet 3’ (91 cm) *

J Clearance to non-mechanical air supply inlet to building or 12” (30 cm) for appliances > 10,000 Btuh (3 kW) and < 9” (23 cm) for appliances > 10,000 Btuh (3 kW) and < the combustion air inlet to any other appliance

M Clearance to each side of the centerline extended above or 12” (30 cm) 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. vent, or other appliances direct vent intake or exhaust. cated on public property. assembly

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

100,000 Btuh (30 kW)

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

Btuh (14.7 kW)

K Clearance to a mechanical air supply inlet 6’ (1.83 m) 3’ (91 cm) above if within 10’ (3m) horizontally

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

N Clearance to the vent terminal of a dryer vent, water heater 3’ (91 cm} 3’ (91 cm)

0 Clearance from a plumbing vent stack 3’ (91 cm) 3’ (91 cm)

P Clearance above a paved sidewalk or paved driveway lo- 7’ (2.13 m) * *

> greater than, = greater than or equal to, < less than, < less than or equal to

(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 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 B1 49.1, 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 public walkways; or b. Near soffit vents or crawl space vents or other areas where condensate or vapor could create a nuisance 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 combustion products of adjacent vents.

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

8. Avoid venting under a deck or large overhang. Recirculation could occur and cause performance or system problems.

16 440 01 1024 04


| Other than Direct Vent Termination Clearance

VENT TERMINAL OO ain SUPPLY INLET AREA WHERE TERMINAL IS NOT PERMITED anticipated snow level toa or or to

>

100,000 Btuh (30 kW), 36” (91 cm) for appliances > 100,000 | the opening.

Btuh (30 kW) toa toa terminal within a horizontal distance of 2’ (61cm) from the centerline of the terminal toan toan toan corner comer to cated on electrical meter or gas service regulator assembly to to toa to a vent the combustion air inlet to any other appliance to vent, or other appliance’s direct vent intake or exhaust. or below vent terminal of the furnace to a dryer or water heater assembly

100,000 Btuh (30 kW}

>

100,000 Btuh (30 kW), 36” (91 cm) for appliances > assembly opening. to vent a vent, water vent, or other appliances direct vent intake or exhaust. a vent or 7 (2.13 m}

> greater than, = greater than or equal to, < less than, < less than or equal to

(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 Code ak

# 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 2223.1/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.

Avent 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 nuisance 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 combustion products of adjacent vents.

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

8. Avoid venting under a deck or large overhang. Recirculation could occur and cause performance or system problems.

440 01 1024 04 17


Condensate Drain Trap

This furnace removes both sensible and latent heat from the products of combustion. Removal of the latent heat results in condensation of the water vapor. The condensate is removed from the furnace through the drains in the plastic transition and the vent fitting. The drains connect to the externally mounted condensate drain trap on the left or right side of the furnace.

The startup of a new furnace will involve a cycle or two of the furnace to properly prime the condensate trap with water. Until the trap is fully primed, some condensate will be pulled into the combustion blower. The furnace may cycle on the pressure switch connected to the plastic transition box due to condensate buildup.

After the trap is primed, the condensate will start draining from the furnace. The combustion blower will clear out any remaining condensate 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 1/5” (12.7mm) drain hose.

Remove the!/s” (12.7mm) ID drain hose from either the gutter or the white PVC tee trap. Using a funnel pour eight (8) ounces (236 ml) of water into 1/5” (12.7mm) 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. Reconnect the 1/5” (12.7mm) 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 9/4” (19.1mm) PVC or CPVC pipe, however alternate 1/5”

(12.7mm) CPVC [nominal 5/,” (15.9mm) O.D.] or vinyl tubing with a minimum inner diameter (1.D.) of 5/g” (15.9mm) 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” (6.4mm) per foot downward slope toward the drain. 1/4” (6.4mm) per foot is recommended.

Installation of an overflow line is recommended when the 1/,”

(6.4mm) per foot slope to the condensate drain cannot be maintained. A drain tube retainer clip is included in the furnace to prevent kinking/buckling of the drain tube. The retainer clip should remain in the furnace (between the door switch plate and the blower shelf, Figure 10) during operation. See Figure 20 for proper routing and installation of the overflow.

Drain Tube Retainer Clip Location

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

A IN

FROZEN AND BURST WATER PIPE HAZARD

Failure to follow this caution may result in 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 local codes, or if no indoor floor drain is available. The condensate 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 recommended that an auxiliary safety switch be installed to prevent operation of the equipment in the event of pump failure or plugged drain line. If used, an auxiliary safety switch should be installed in the R circuit (low voltage)

ONLY.

3. If the auxiliary switch in the condensate pump is used, the furnace may shut down due to a blocked condensate line or failed pump. To prevent frozen water pipes see the “Frozen

Water Pipe Hazard” section in 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 operation 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 115 volt, 40° F

(4°C) 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.

D hi

Representative drawing only, some models may vary in appearance.

18 440 01 1024 04


Upfliow Installations Top Vent

. fent Drain

& Clamps

: Plastic Caps (2)

> Yellow or black

Coupling & Clamps

(Optional) oe

J

3

= a t cn

Single Pressure Switch

Dual Pressure Switch Detail

Relief Tube ;

Drain Tube

Black Rubber

'fo" (12.7mm) 1D &

Clamps —

5/g” (15.9mm) ID & |

Clamps a , essed“)

Sy Drain Connector Black PVC

Pann

Casing Grommet

Black Rubber

5/,” (15.9mm) ID

(Loose parts bag)

(12.7mm) CPVC (Loose parts bag) ,

Drain Tube

Corrugated

3/," (18.1mm) PVC X t/y”

Drain Line Vent Tee 3/,”

(18.1mm) PVC or tip” (12.7mm)

CPVC (Field supplied)

.

3

_i--—7 (Loose parts bag) on

/

Drain Tube Black Rubber §(,” (15.9mm) ID &

Clamps, Cut length to fit (Loose parts bag)

Street Elbow

"fp" CPVC

25-24-80

Representative drawing only, some models may vary in appearance. aemn) iD he

.

Upflow Installations Top Vent (See Figure 11)

Remove knockout from the side of the furnace casing where drain tube will exit.

Glue the CPVC street elbow to the trap using appropriate cleaner and solvent cement.

The field supplied $/,” (18.14mm) PVC or 1/5” (12.7mm) CPVC drain line vent tee must vent outside the furnace cabinet (see exploded view above).

Note: It is recommended that all PVC piping and fitting connections be fit up and inspected before final cementing. 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.

Install casing grommet [black rubber 5/,” (15.9mm) ID grommet - in loose parts bag].

Install the 1/>” (12.7mm) CPVC street elbow on discharge of trap

Install the black PVC tube connector [ 9/4” (18.14mm) PVC x 1/5”

(12.7mm) CPVC from loose parts bag] as shown in the illustration above.

Cut the black drain tube [5/,” (15.9mm) 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. jurisdiction.

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

440 01 1024 04


Upflow Installations Vent through Left-Side

Coupling & Clamps

(Optional) _

2” (50.8mm) PVC

Coupling

}

~- On Some Models

ONLY

Plastic Cap

Yellow or black

Single Pressure Switch

— OOO

Relief Tube

_- Black Rubber 3f15” ry |S

_.

|

Ver ee

ent Drain

& Cl

amps

Either: The PVC

Drain Tee or a field

supplied 2”

(50.8mm) PVC Tee

Dual Pressure Switch Detail

\ Tee Trap White PVC

(loose parts bag)

On,

:

Drain Connector Black PVC

3/4" (19.1mm) PVC X 1/5”

(12.7mm) CPVC

Casing Grommet

Black Rubber

5/q” (15.9mm) ID

(Loose parts bag) er

TT | i

S

L

\

/

\

. N

Drain Tube

Black Rubber

"fo" (12.7mm) 1D

& Clamps

Drain Tube

Corrugated

5fg” (15.9mm) ID

& Clamps a \

\

SW aod

Drain Line Vent Tee 3/4” (18.1mm) PVC or '/.”

(12.7mm) CPVC (Field supplied) a

.

Representative drawing only, some models may vary in appearance. a

SIDE VIEW ce

~~~. Rotate downward

5° to 10° be angled 5° to 10° also.

25-24-81

(4.8mm) ID

Upflow Installations Vent through Left-Side (See Figure 12)

Remove drain tee from inducer discharge and remove black drain tube '/5” (12.7mm) ID from bottom of drain tee. (N9MPD and

*9MPD models only)

Install the black PVC drain connector [9/4” (19.1mm) PVC x 1/5”

CPVC from loose parts bag] as shown in the illustration above.

Install Vent Pipe grommet in side of casing.

Cut an appropriate length of 2” (50.8mm) PVC pipe long enough to exit the cabinet and connect the vent drain to either:

Cut the black drain tube [5/g” (15.9mm) 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. e A standard field supplied 2” (60.8mm) PVC tee (N9MP1 or

N9MP2 models), or e A 2” (50.8mm) PVC coupling fastened onto the drain tee

(N9MPD and *9MPD models)

Install tee trap into bottom of tee.


Install the 1/5” (12.7mm) CPVC street elbow on discharge of trap

Connect the tee trap and the main drain line exiting the casing as shown in Figure 20.

Note: It is recommended that all PVC piping and fitting connections be fit up and inspected before final cementing. Both the internal 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.

20 440 01 1024 04


All Models Vent through Right-Side

raat \

Plastic Cap

Yellow or black

On Some Models

--- ONLY

Dual Pressure Switch

Either: The PVC Drain

Vent Drain

Tee or a field supplied

& Clamps

Drain Tube

Corrugated

5/g” (15.9mm) ID &

Clamps

SIDE VIEW

NOTEYBuit-in channel will

be angled 5° to 10° also.

2" (50.8mm) PVC Tee Relief Tube

Black Rubber

3fy_” (4.8mm) ID

yD

-

lew ; ;

/ Single Pressure Switch Details

2" (60.8mm)

PVC

Coupling /

/

/ ee

Tee Trap White PVC

(loose parts bag)

_ Elbow Tubes (2) Black Rubber

= Wy” (12,7mm) ID & Clamps

(loose parts bag)

Barbed Coupling, ‘kr (12. 7mm) oD

.

Drain Line Vent Tee 3/,”

(18.1mm) PVC or 1/,”

(12.7mm) CPVC (Field sup-

/, Plied)

(12.7mm) CPVC

(Loose parts bag)

Ph

Drain Connector Black PVC

~ 3/4" (19.1mm) PVC X 1/5”

\ Black Rubber 5/,” (15.9mm) CPVC

(Loose parts bag) 25-24-68

All Models Vent through Right-Side (See Figure 13)

Disconnect the black drain tube between the drain vent and the trap.

Install casing grommet [5/,” (15.9mm) ID grommet - in loose parts bag].

Install the 1/5” (12.7mm) CPVC street elbow on discharge of 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.

Install the black PVC tube connector [8/4” (19.1mm) PVC x 1/5”

(12.7mm) CPVC from loose parts bag as shown in the illustration above. Using the 1/5” (12.7mm) OD barbed coupling in the loose parts bag connect together with the two short 1/5” (12.7mm) ID elbow tubes

Cut the black drain tube[>/g” (15.9mm) ID — in loose parts bag] to and connect the lower discharge port of the vent drain to the trap. length to fit between trap and tube connector through grommet.

Secure all connections with clamps.

Clamp both ends of the drain tube using clamps provided.

Install the vent pipe grommet into the casing

Glue the CPVC street elbow to the trap using appropriate cleaner

Cut an appropriate length of 2” (12.7mm) PVC pipe long enough and solvent cement. to exit the cabinet and connect the vent drain to either:

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

A standard field supplied 2” (12.7mm) PVC tee (N9MP1 or shown in Figure 20.

N9MP2 models), or

Note: It is recommended that all PVC piping and fitting

A 2” (12.7mm) PVC coupling fastened onto the drain tee connections be fit up and inspected before final cementing. Both

(N9MPD and *9MPD models) the internal trap and the external tee trap must be primed before operation. Verify all condensate drain connections are

Install tee trap into bottom section of tee. securely clamped. A coupling and clamps (in loose part bag) may Remove knockout from the side of the furnace casing where drain be installed as shown for future servicing of the vent system. tube will exit.

440 01 1024 04 21


Downflow Left-Side Vent and Trap

Plastic Cap os SIDE VIEW

Yellow or black oA

-

~~. Rotate downward fo "5° to 10°

Coupling & Clamps | =

\

\ \

\ i | i

Tn}

Leave room for clamp

™

Cut Here

NOTE Built-in ee be angled5° 1010" 280.

2 clamps Either: The PVC

Drain Tee or a field supplied 2”

(50.8mm) PVE Tee

Parts Bag)

WARNING

Move Caps to top of trap

/ Coupling

~é

Tee Trap White PVC-~~

_-~ Alternate >

INLET* =

(loose parts bag)

Elbow Tube Black Rubber '/,"__

(12.7mm) ID & Clamps (Loose ~~~...

Corrugated Cut at straight section /

/

_Ananananan 2 nmnny

OL ILIN,

/

Drain Tube

Black Rubber 1/,”

(12.7mm) ID & Clamps

.

Dual Pressure Switch /

/

/

Barbed Coupling '/9” (12.7mm)

Drain Tube Black, */g” (15.9mm) ID

[AA AARAR AR

PIAL TRL IDDBA

~~

~ OD (loose parts bag)

INLET ia

_- Flexible Tubing Connector, 3/1,”

(4.8mm) OD (loose parts bag)

Relief Tube, Extension Black

Rubber, 3/44” (4.8mm) ID Cut to fit (loose parts bag)

Trap Connection “Clamp ears”

/\ Sa

_-~ On Some Models

ONLY

Preassemble &

1

. will

Relief Tube Black Rub-

L- ber 3/;_” (4.8mm) ID

Jem a insert into furnace

25-24-69

* Combustion air pipe (either side) for NIMP2, NIMPD & *9MPD downflow installation


Downflow Left-Side Vent and Trap (See Figure 14)

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

3/46” (4.8mm) OD flexible tubing connector and a suitable length of extra 9/,,” (4.8mm) ID hose to make this connection.

Install the vent pipe grommet into the casing and trap mounting bracket from the blower compartment. Using Cut an appropriate length of 2” (60.8mm) PVC pipe long , enough cover plate and gasket provided in the loose parts bag, cover the to exit the cabinet and connect the vent drain to either: hole from the burner compartment to the blower compartment and e Astandard field supplied 2” (50.8mm) PVC tee (N9MP1 or secure with screws.

N9MP2), or

Move the caps to the top of the trap and mount the trap externally to the left side of the unit using the two screws provided.

Cut the 5/,” (15.9mm) 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 1/5” (12.7mm) 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”

(12.7mm) OD barbed coupling and a suitable section of 1/5”

(12.7mm) ID hose to make the connection. Secure all connections e A 2” (50.8mm) PVC coupling fastened onto the drain tee


Install tee trap into bottom section of tee.



Note: It is recommended that all PVC piping and fitting connections be fit up and inspected before final cementing. Both the external trap and the external tee trap must be primed with clamps

Connect the 9/4” (4.8mm) ID relief tube from the small port on the trap to the top port of the transition as shown in the picture. In some cases, additional hose length will be needed. Use the clear plastic 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.

22 440 01 1024 04


Downflow Right-Side Vent and Trap

Plastic Cap

Yellow or black

Trap Connection

P a

<=

‘Clamp ears”

Pointed OUT

Vent Drain

& Clamps

SIDE VIEW

Elbow Tube Black Rubber

'fo” (12.7mm) ID & Clamps

(Loose Parts Bag)

\

Barbed Coupling fy” (12.7mm) OD

(Loose Parts Bag)

Relief Tube

Black Rubber

3/4,” (4.8mm) ID

Preassemble & insert into furnace

NQ

Coupling & Clamps

, (Optional)

/

Drain Hose

Black Rubber

1fo" (12.7mm) ID

Cut to Fit &

{lamps


6

5

be angled 5° to 10° also.

Single Pressure Switch Detail

On Some

Models

4” — supplied 2”

(50.8mm) PVC Tee a” (

sl

Drain Connector Black

PVC 3/," (19.1mm)

PVC X15” (12.7mm

S, o

—

wy

ONLY

A

WARNING

Move Caps to top of trap

, a

—_/

Drain Tube) Black Rubber, 5/,”

(15.9mm) ID Cut to fit & Clamps

( loose parts ba

P 9)

2” (60.8mm) PVC

Coupling

Either: The PVC

Drain Tee or a field

| D _~ Tee Trap White PVC

(loose parts bag)

25-24-69b


Downflow Right-Side Vent and Trap (See Figure 15)

Remove the drain tee if installed. Cut an appropriate length of 2” (60.8mm) PVC pipe long , enough to exit the cabinet and connect the vent drain to either: e Astandard field supplied 2” (50.8mm) PVC tee (N9MP1 or

N9MP2 models), or

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. e A 2” (50.8mm) PVC coupling fastened onto the drain tee


Move the caps to the top of the trap and mount the trap externally Install tee trap into bottom section of tee. to the right side of the unit using the two screws provided.

Remove knockout from the side of the furnace casing where drain

Connect the corrugated drain tube from the transition box to the tube will exit. trap as shown. If an extension is required, use the black PVC tube

Connect the tee trap and the main drain line exiting the casing as connector and the black 5/,” (15.9mm) ID drain tube in the loose shown in Figure 20. parts bag. Cut tube to length. Secure all connections with clamps.


Connect the drain hose from the Vent Drain to the trap. If an connections be fit up and inspected before final cementing. Both extension is required, use the black 1/5” (12.7mm) OD barbed the external trap and the external tee trap must be primed coupling, connect a black 1/5” (12.7mm) ID elbow tube and a before operation. Verify all condensate drain connections are suitable section of a 1/5” (12.7mm) ID drain tube to make securely clamped. A coupling and clamps (in loose part bag) may be installed as shown for future servicing of the vent system. connection from the vent drain to the trap. Secure all connections with clamps.

Install the vent pipe grommet into the casing

440 01 1024 04 23


Vent Drain

Horizontal Left through Top

& Clamps Plastic Caps

‘Yellow or black


Trap Connection

.

SN, “Clamp ears”

Pointed OUT

Preassemble & insert into furnace ke a

>

<=

|

Relief Tube Black Rubber

— 3f1g” (4.8mm) ID

5<

Lu

Parts Bag)

Relief Tube Extension

Black Rubber °/;,” (4.8mm) ID

\ Drain Tube

Cut to Fit (Loose Parts Bag)

Drain Tube Corrugated

5/,” (15.9mm) ID & Clamps

Remove KO before mounting Trap

“ Cut at straight section

Field

Supplied Tee

Tee Trap White PVC

Coupling & Clamps

(Optional)

/

‘S|_CIONOON cra

Cap and Clamp

Black Rubber

'fo” (12.7mm) ID

& Clamps

7

Flexible tubing connector

3/4_” (4.8mm) OD (Loose

(loose parts bag) Open End

\

Fenn banana

“

Leave room for clamp Cut Here

|

25-24-70


Horizontal Left through Top (See Figure 16)

Disconnect the hoses from the trap assembly, and remove trap tubing connector and the black $/;,—” (4.8mm) ID relief tube in the and trap mounting bracket from the blower compartment. Using loose parts bag. Cut tube to length. Secure all connections with cover plate and gasket provided in the loose parts bag, cover the clamps. hole from the burner compartment to the blower compartment and

Cut an appropriate length of 2” (50.8mm) PVC pipe, long enough secure with screws. to exit the cabinet and connect the vent drain to either:

Remove knockout from the side of the furnace casing where drain e Astandard field supplied 2” (50.8mm) PVC tee (N9MP1 or tube will exit.

N9MP2 models), or

Mount the trap externally to the bottom side of the unit using the e A 2” (50.8mm) PVC coupling fastened onto the drain tee two screws provided in the location shown.


Cut the corrugated tube as shown in the illustration above.


Connect the corrugated hose from the transition to the trap.

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

Secure connections with clamps. shown in Figure 20.

Remove the black 1/5” (12.7mm) ID drain tube from the drain tee.


Install a yellow cap and clamp over the open drain port of the drain connections be fit up and inspected before final cementing. Both tee. the external trap and the external tee trap must be primed

Connect the black 1/5” (12.7mm) ID drain tube from the Vent Drain before operation. Verify all condensate drain connections are to the trap. Secure connections with clamps. securely clamped. A coupling and clamps (in loose part bag) may

Connect the °/1¢” (4.8mm) ID relief tube to the middle port on the trap. If an extension is required, use the $/,,” (4.8mm) OD flexible be installed as shown for future servicing of the vent system.

24 440 01 1024 04


Horizontal Left-Side Vent

Alternate Orientation

Field

Supplied Tee

A


Yellow or black

Plastic Cap

\

/ io \

ae

ALR FLOW {

TT

Level or Sloped towards Tee

\ Se


Relief Tube Black Rub- mo \

=

Vent Drain

& Clamps

N ber 3/4,” (4.8mm) ID

[1 Elbow Tube Black Rubber '/.” (12.7mm) ero” ~< ~~ ID & Clamps (Loose Parts Bag)

MOEN _ fs

Trap Connection

_4

Preassemble & insert into furnace

'fo” (12.7mm) ID & Clamps

Flexible Tube Connector 4/,,”

(4.8mm) OD (Loose Parts Bag) A aN

Drain Tube Corrugated

5/g” (15.9mm) ID & Clamps

Relief Tubing Extension

Black Rubber 3/;_” (4.8mm) ID

Barbed Coupling 1/.” (12.7mm) OD

Tee Trap White PVC

(loose parts bag)

On Some a

Models ONLY

¥y

(Loose Parts Bag)

-~ Drain Tube Black Rubber

“Clamp eas? Tr 5 iaht sect

Pointed OUT


Cut at straight section mae i rns — error ag gconece occ

Leave room for clamp


Cut Here

25-24-70a

Horizontal Left-Side Vent (See Figure 17)

Remove the drain tee from the Vent Drain if installed (N9MPD and

*9MPD models only)

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

Connect the °/,¢” (4.8mm) ID relief tube to the middle port on the trap. If an extension is required, use the $/,_” (4.8mm) OD flexible tubing connector and the black °/;¢” (4.8mm) ID relief tube in the loose parts bag. Cut tube to length.

Cut an appropriate length of 2” (50.8mm) PVC pipe, fittings and extension pipe long enough to exit the cabinet and connect the vent drain to either: cover plate and gasket provided in the loose parts bag, cover the hole from the burner compartment to the blower compartment and e Astandard field supplied 2” (50.8mm) PVC tee (N9MP1 or

N9MP2 models), or secure with screws.

Remove knockout from the side of the furnace casing where drain tube will exit. e A 2” (50.8mm) PVC coupling fastened onto the drain tee



Mount the trap externally to the bottom side of the unit using the two screws provided in the location shown.



Secure connections with clamps.

Connect the black 1/5” (12.7mm) ID drain tube from the Vent Drain to the trap. If an extension is required, use the black 1/5” OD flexible tubing connector and the black 1/5” (12.7mm) ID drain tube in the loose parts bag. Cut tube to length. Secure connections with clamps.

Important: The pipe to the tee trap must be level or sloping towards the tee trap


Note: It is recommended that all PVC piping and fitting connections be fit up and inspected before final cementing. Both the external 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.

440 01 1024 04 25


Horizontal Right through Top


Trap Connection

3/44” (4.8mm) ID Rub- ber Tube

Plastic Cap

Yellow or black

Preassemble &

Coupling & Clamps

(Optional)

LYM

\ insert into furnace

,

Relief Tube Black Rub- ber 3/4_” (4.8mm) ID

Drain Tube Black

Rubber '/,” (12.7mm)

ID & Clamps we

Vent Drain

& Clamps

WARNING

Add Cap and Clamp -—»

Alternate Orientation

Flexible Tubing Connector

3/44” (4.8mm) OD (Loose

Parts Bag)


Black Rubber 3/,," (4.8mm) ID


L l l

Dual Pressure Switch |

Drain Tube Corrugated °/,” (15.9mm) ID & CT] l

Clamps Cut at straight section

Fo

ieee Anan

Leave room for clamp me

Horizontal Right through Top (See Figure 18)

'

Remove KO before


_

Tee Trap White PVC

(loose parts bag)

| er

<= IN LET’)

\

On Some Models

ONLY arbed Coupling 1/2” (12.7mm)

D (Loose Parts Bag)

25-24-70b

Cut Here

\ Drain Tube Black Rubber

1Jy” (12.7mm) ID & Clamps

CH mounting Tra g trp

Connect the °/,,” (4.8mm) ID relief tube to the middle port on the trap. If an extension is required, use the clear 5/;,” (4.8mm) OD flexible tubing connector and the black °/,¢” (4.8mm) ID relief tube in the loose parts bag. Cut tube to length.

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.

Cut an appropriate length of 2” (50.8mm) PVC pipe, fittings and extension pipe long enough to exit the cabinet and connect the vent drain to a standard field supplied 2” (60.8mm) PVC tee






Connect the black 1/5” (12.7mm) ID drain tube from the Vent Drain to the trap. If an extension is required, use the black 1/5” (12.7mm)



Note: It is recommended that all PVC piping and fitting connections be fit up and inspected before final cementing. Both the external 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 OD barbed coupling and the black 1/5” (12.7mm) ID drain tube in be installed as shown for future servicing of the vent system. the loose parts bag. Cut tube to length. Secure connections with clamps.

26 440 01 1024 04


Horizontal Right-Side Vent


Plastic Cap

Yellow or black Coupling & Clamps

(Optional)

/

[pmo S\

AR FLOW ~ —

Vent Drain

[MOUNT ==>

Trap Connection a > ‘Clamp ears

Pointed OUT

Relief Tube

Black Rubber 3/,,_”

& Clamps

Level or Sloped fo | towards Tee insert into furnace i fo et

(4.8mm) iD

VL

_|-- Elbow Tube Black Rubber

1" (12.7mm) ID & Clamps

(Loose Parts Bag)

—

Z

ONLY

| Tee Trap

-~ White PVC

(loose parts bag)

On Some Models

INLET 2 Flexible Tubing Connector 3/44” ----~

(4.8mm) OD (Loose Parts Bag)


Black Rubber 3/,,” (4.8mm) ID


~ Ss /

“Remove KO befo

Alternate Orientation mounting Trap

Field

Supplied Tee

Drain Tube Black, 9/3” (15.9mm) ID & Clamps

Corrugated Cut at straight section nw ewan Lan

Ne ate

Leave room for clamp “Cut Here

|

* .

Drain Tube

Black Rubber

1fo" (12.7mm) ID

[h & Clamps


\

Barbed Coupling '/,” (12.7mm)

OD (Loose Parts Bag)

25-24-70¢

Horizontal Right-Side Vent (See Figure 19) splice connector and the black 9/,.” (4.8mm) ID relief tube in the loose parts bag. Cut tube to length.

Disconnect drain tee if installed (N9MPD and *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.






Connect the black 1/5” (12.7mm) ID drain tube from the Vent Drain to the trap. If an extension is required, use the 1/5” (12.7mm) OD barbed coupling and the black 1/5” (12.7mm) ID drain tube in the loose parts bag. Cut tube to length. Secure connections with clamps.

Connect the 3/,,” (4.8mm) ID relief tube to the middle port on the trap. If an extension is required, use the clear 5/,,” (4.8mm) OD

Cut an appropriate length of 2” (60.8mm) PVC pipe, fittings and extension pipe long enough to exit the cabinet and connect the vent drain to either: e Astandard field supplied 2” (50.8mm) PVC tee (N9MP1 or

N9MP2 models), or e A 2” (50.8mm) PVC coupling fastened onto the drain tee



Important: The pipe to the tee trap must be level or sloping towards the tee trap


Note: It is recommended that all PVC piping and fitting connections be fit up and inspected before final cementing. Both the external 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.

440 01 1024 04 27


Connecting Vent and Combustion Air Piping

Connecting Tee Trap to Condensate

Trap and Main Drain Line



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

Open Tee

Refer to Figure 11 through Figure 19 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)

|

Evaporator

Coil

Drain Line

(Optional) c 5 ®

Tee Trap

Condensate

Trap 25-24-85


Install the air intake coupling and gasket to the furnace with the four (4) screws.

Note: The air intake coupling and gasket can be installed to the top panel to the alternate air intake locations on either the left or right side panels of the furnace.

For 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. Remove the 3” (76.2mm) hole plug from the side panel and relocate to the air intake hole in the top panel. Use four screws to seal the four (4) mounting holes in the top panel next to the hole plug. Drill four (4) 7/g4” (2.8mm diameter holes in the casing using the air intake coupling as the template.

The air intake coupling is sized for 2” (60.8mm) PVC pipe.

Install the combustion air pipe to the air intake coupling using RTV sealant to provide for future serviceability.

Vent Pipe Connection

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.

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” (76.2mm) hole plug from the furnace panel. NOTE: Depending on the installation position, the vent pipe grommet will be installed to the top panel or to the alternate location on the side panels. If needed, remove the 3” (76.2mm) hole plug from the furnace panel and relocate to the open hole in the furnace panel. (See Figure 11 or Figure 20)

1. 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.

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.

2. 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 eliminate potential air lock problems.

3. The drain line from the tee trap is to be connected to the furnace condensate trap drain line as shown above.

Note: The vent fitting MUST be installed with the air flow marking arrow pointed toward the vent pipe. (See Figure 21)

Some installations require the vent fitting to be installed with a 5° to 10° downward slope. (See Figure 11 through Figure 20)

4. Condensate drain lines from a cooling coil may be connected 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 1/5” (12.7mm).

28 440 01 1024 04


ecm

;

Proper Sealing Procedure for

Combustion Blower

=

‘) Vent Pipe “tes? 4 NOTE: The 90° elbow is approved for use inside the furnace ONLY. a

90° Elbow |~—~~

~

Vent Pipe

~~~ (Top Panel Exit)

Vent Fitting

& Clamps

Combustion to inside surface of socket and outside of pipe. Do NOT allow primer to dry before applying cement.

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

/ Vent Extension

Pipe (Side Panel ~~

Exit)

SIDE VIEW

< Rotate downward i

=~ 5° to 10°

LKTS)\

AM

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

25-24-14a

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

(sustained temperatures O°F (-18°C) and below for 24 or more consecutive hours), increase the minimum distance between vent pipe and air intake from 8” (203.2mm) to 18”(457.2mm).

AINE



Joining Pipe and Fittings

Maintain a minimum of 36” (914.4mm) 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.

SEE VENT AND COMBUSTION AIR PIPING, Vent and

Combustion Air Piping Guidelines in this manual for applicable

ASTM Standards for vent materials.

IN WARNING

FIRE HAZARD

Install all couplings, nipples and elbows using proper procedures for Joining Pipe and Fittings and maintain spacing between vent and combustion air piping as indicated in Figure 22 through Figure 30 .

Sidewall Termination 12” (804.8mm) or

More Above Snow Level or Grade Level

Failure to follow this warning could result in personal injury, death and/or property damage.

Observe all cautions and warnings printed on material containers

8” (203.2mm

20' (6.1m) M *18” (457.2mm) Minimum for cold climates [sustained 0°F

(-17°C) and below for 24 or more consecutive hours]

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

A WARNING



U7 a}

(GRADE LEVEL

OR

SNOW LEVEL 25-00-05F

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 (0°C), 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.

Horizontal Termination

1. Cut two holes.21/5” (63.5mm) for 2” (60.mm) pipe, 3” (76.2mm) for 21/5” (63.5mm) pipe, or 31/>” (88.9mm) for 3” (76.2mm) pipe. Do NOT make the holes oversized, or it will be necessary 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 couplings or elbows that will be installed on the outside. The couplings or elbows MUST prevent the pipe from being pushed back through the wall.

NOTE: Stir the solvent cement frequently while using. Use a natural bristle brush or the dauber supplied with the cement. The

3. Extend vent pipe and combustion air pipe through the wall $/,” proper brush size is one inch.

(19.1mm) to 1” (25.4mm) and seal area between pipe and

2. After checking pipe and socket for proper fit, wipe socket wall. and pipe with cleaner-primer. Apply a liberal coat of primer

440 01 1024 04 29


Using Exterior Risers

4. Install the couplings, nipple and termination elbows as shown and maintain spacing between vent and combustion air piping as indicated in Figure 22, Figure 23 and Figure 24. min. or 18” (457.2mm) min. diameter around the vent termination at the exterior wall to protect the house exterior materials from flue product or condensation (freezing) damage.

| Sidewall Termination with Exterior

Risers to Get Above Snow Level or Grade

Install eloows and pipe to form riser as shown in Figure 23.

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.

Vertical Termination

8” (203.2mm)* MIN.

20’ (6.1m) MAX

CZ

*18” (457.2mm) Minimum for cold climates [sustained 0°F

(-17°C) and below for 24 or more consecutive hours]

1. Figure 25 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” (804.8mm) above the roof or snow accumulation level, and 12” (804.8mm) away from a vertical wall or other protrusion. ou 7 I 8” (203.2mm)

—

o\\

wf ,

MIN

\ >»

Ne

: J

12" (304,8mm) i MIN.

\ GRADE LEVEL

. OR

SNOW LEVEL 25-00-04F

Recommended Alternate Installation for Sustained Cold Weather [0° F(-17°C) & below for 24 hours or more consecutive hours]

OVERHANG

EXHAUST 12” (304.8mm) MIN.

12” (304.8mm) MIN. Ground

Level OR Snow Level

FRONT VIEW

cy

\.

SIDE VIEW

(I

.

VS ~

U

Same Joist

Space

LT. D

co

|

12” (304.8mm) MIN.

25-23-73

2. If the vent system is installed in an existing chimney make sure clearances shown in Figure 25 are maintained.

Horizontal section before the termination elbow can be extended on the inlet air to provide necessary clearance.

Rooftop Termination is

A= 12” (304.8mm) Above roof or snow accumulation level

B = 8” (203.2mm) Min., 20’ (6.1m) Maximum, except in areas with extreme cold temperatures [sustained 0°F(-17°C) and below for 24 or more consecutive hours], the 18” (457.2mm)

Min.

Vent Termination Shielding

Under certain wind conditions some building materials may be affected by flue products expelled in close proximity to unprotected surfaces. Sealing or shielding of the exposed surfaces with a corrosion resistant material (such as aluminum sheeting) may be required 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 26,

Figure 27, Figure 28, and Figure 29, but the next vent termination must be at least 36” (914.4mm) away from first two terminations. It is important that vent terminations be made as shown to avoid recirculation of flue gases.

30 440 01 1024 04


Concentric Vent and Combustion-

Air Roof Termination

~~ 2" (60.8mm) Max

TD ti x

Co Exhaust oy g

12” (304.8mm)

Min. Grade or

Snow Level

Combustion

Air

/ on

cS Be Bien

CS

Se

;

Concentric Vent and Combustion-

Air Sidewall Termination

AN (BAmmy

Maximum a

Sidewall Inlet Vent and Exhaust-

Air Termination

8" (457.2MM) Min, om &

12” (304.8mm) Min

Grade or Snow Level ae 18” (457.2mm) Min. for Cold Climates

[Sustained 0°F(-17°C) and below for a

_<y

24 hours or more consecutive hours]

—~ Dimension “A’ is touching or 2” (50.4mm) maximum separation.

Sidewall Inlet Vent and Exhaust-Air

Termination with Exterior Risers

18” Min. for Cold Climates

(Sustained temperatures 0° F a and below for 24 or more con- beg le

La L- 8” Min.

Ty “T ot la 20’ Max. |

12” Min.

Grade or

Snow Level

‘

Rooftop Inlet Vent and Exhaust-

Air Termination

8” (203.2MM) Min. we

20' (6.1) Max.

Snow Level

12” (304.8mm)

Min. Grade or

18” Min. for Cold Climates

_“, Sustained temperatures

“7 0° Fand below for 24 or more consecutive hours) —_— inlet

VN

18” (457-2mm) Min, for Cold Climates

[Sustained 0°F(-17°C) and below for

24 hours or more consecutive hours]

25-22-43

440 01 1024 04 31


Concentric Termination

Nee ANS ILE:

CARBON MONOXIDE POISONING, FIRE AND

EXPLOSION HAZARD


Inlet and outlet pipes may NOT be vented directly above each other (standard vent terminals).

Concentric Vent Termination

Kit # NAHA001CV & NAHA002CV

For Concentric Vent Termination information call 931.270.4100 with the complete model and serial number of the furnace.

Refer to Special Venting Requirements for Installations in Canada in the Vent and Combustion Air Connections Section.

These kits are for vertical or horizontal termination of the combustion air inlet and the exhaust vent pipes on Category IV gas-fired condensing furnaces. The NAHA001CV kit can be used for 3” (76.2mm) diameter pipe systems. The NAHAOO02CV kit can be used for 2” (50.8mm) diameter pipe system. Refer to Table 5 combustion air inlet and the exhaust vent pipes must attach to the termination kit. The termination kit must terminate outside the structure and must be installed per the instructions outlined below for vertical or horizontal termination. Vertical termination is preferred. Field supplied pipe and fittings are required to complete the installation.

Concentric Termination Kit

NAHAO01CV & NAHAO02CV Venting

Table for NSMPD & *9MPD Models

40,000, 50,000, 60,000, 75,000 & 80,000 Btuh Furnaces

NAHAOO02CV - 35’ (10.7m) & (4) 90° elbows with 2” (50.8mm) PVC pipe or

NAHAO01 CV - 65’ (20m) & (4) 90° elbows with 3” (76.2mm) PVC pipe


NAHAOO1CV - 35’ (10.7m) & (4) 90° elbows with 3” (76.2mm)PVC pipe or

NAHAO01 CV - 65’ (20m) & (4) 90° elbows with 3” (76.2mm) PVC pipe &

Long Vent Kit (see Tech. Manual).

NAHAOO1CV - 35’ (10.7m) & (4) 90° elbows

125,000 Btuh Furnace with 3” (76.2mm) 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” (50.8mm) and 3”

(76.2mm) vents.

NOTE: The minimum vent length is 5’ (1.5m) of PVC. Feet of pipe is whichever pipe run is the longest, either inlet or outlet side.

Concentric Termination Kit

NAHAO01CV & NAHAO02CV Venting

Table for NSIMP2 Models

50,000 & 80,000 Btuh Furnaces


NAHAOO1CV - 65’ (20m) & (4) 90° elbows with 3” (76.2mm) PVC pipe

75,000 Btuh Furnaces


NAHAO02CV - 35’ (10.7m) & (4) 90° elbows with 2” (50.8mm) PVC pipe &

Long Vent Kit (See Tech. Manual) or

NAHAOOICV - 65’ (20m) & (4) 90° elbows with 3” (76.2mm) PVC pipe


NAHAOO1CV - 35’ (10.7m) & (4) 90° elbows

NAHAOO01CV - 35’ (10.7m) & (4) 90° elbows with 3” (76.2mm)PVC pipe or

NAHAOO1CV - 65’ (19.8m) & (4) 90° elbows with 3” (76.2mm) PVC pipe &

Long Vent Kit (see Tech. Manual).

125,000 Btuh Furnace with 3” (76.2mm) 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

3. Elbows are DWV long radius type for 2” (50.8mm) and 3”

(76.2mm) vents.

NOTE: The minimum vent length is 5’ (1.5m) of PVC. Feet of pipe is whichever pipe run is the longest, either inlet or outlet side. both the inlet and the exhaust pipes five feet for each additional elbow used.

Do not use field supplied couplings to extend the pipes.

Airflow restriction will occur and the furnace pressure switch may cause intermittent operation.


32 440 01 1024 04

Gas Supply and Piping

FIRE AND EXPLOSION HAZARD


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

NOTE: The rating plate is stamped with the model number, gas type and gas input rating.

Gas Supply Requirements

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

(See Propane Gas Conversion Kit instruction manual for furnaces converted to

Propane gas) e Use only the Type of gas approved for this furnace. See rating plate for approved gas type. e A '/s” NPT plugged tapping, accessible for a test gauge connection,must be installed immediately upstream of the gas supply connection to furnace. e Gas supply pressure should be within minimum and maximum values listed on rating plate. Pressures are usually set by gas suppliers. e Gas input must not exceed the rated input shown on the rating plate. Overtiring will result in failure of heat exchanger and cause dangerous operation. e Do NOT allow minimum gas supply pressure to vary downward. Doing so will decrease input to furnace. Refer to

Table 8, Table 9, Table 10, Table 11 and Table 12 for normal gas supply and manifold pressures.

| Gas Pressures

Gas Type Supply Pressure

Recommended Max. Min.

Natural 7 in we 14in we 4.5 in we

(1.1 kPa) (1.8 kPa)

(2.7 kPa)

(3.5 kPa)

Propane 11 in we 14in we 11 in we

(3.5 kPa) (2.8 kPa)

Gas Piping Requirements

NOTE: The gas supply line must be installed by a qualified service technician in accordance with all building codes.

NOTE: in the state of Massachusetts. a. Gas supply connections MUST be performed by a licensed plumber or gas fitter. b. When flexible connectors are used, the maximum length shall not exceed 36” (915 mm). c. When lever handle type manual equipment shutoff valves are used, they shall be T-handle valves. d. The use of copper tubing for gas piping is NOT approved by the state of Massachusetts.

Install gas piping in accordance with local codes, or in the absence of local codes, the applicable national codes. Refer to NFPA 54/ANSI 2223.1 for proper gas pipe size.

It is recommended that a manual equipment shutoff valve be installed in the gas supply line outside the furnace. Locate valve as close to the furnace as possible where it is readily accessible. Refer to Figure 31.

Use black iron or steel pipe and fittings or other pipe approved by local code.

Use pipe thread compound which is resistant to natural and

Propane gases.

Use ground joint unions and install a drip leg no less than 3”

(76.2mm) long to trap dirt and moisture before it can enter gas control valve inside furnace.

NOTE: Refer to Figure 31 or Figure 32 for the general layout at the furnace. The rules listed apply to natural and Propane gas pipe installations.

NOTE: Install the gas pipe grommet to the furnace side panel with the gas pipe entry. If needed, remove the 2” (50.8mm) hole plug from the plastic accessory bag and relocate to the open hole in the furnace side panel.

FIRE OR EXPLOSION HAZARD


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” (50.8mm) outside furnace casing.

6. Use two pipe wrenches when making connections to prevent gas valve from turning.

10.

11.

12.

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 connectors, always use a new listed connector.

Do not use a connector which has previously serviced another gas appliance.

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

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

Install correct pipe size for run length and furnace rating.

Measure pipe length from gas meter or Propane second stage regulator to determine gas pipe size.

440 01 1024 04 33


Typical Gas Piping for Upflow

Vent Pipe Grommet (Single Pipe)

Drip Leg and Union, Union* should be outside the

Manual shut-off valve dripleg, union, and furnace. ~

Use elbows and 3” (76.2mm)pipe nipple to connect valve to piping when using right side gas pipe entry. ae a

Propane Low pressure switch

REQUIRED.

ON.

SS [

Sq

A because of clearances. ee :

* Union may be installed inside the cabinet when necessary

= he Models may

5 So)

6

Mo have 1] or 2 pressure switches sure switch

REQUIRED.

Drip Leg and Union, Union* should be vutside 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.

Propane Low pres-

Manual shut-off valve

Gas Pipe Grommet

(Single Pipe)

+

\ Wa

RS

‘Models may have 1 or 2 pressure switches


Additional Propane Connection Requirements

25-24-86

1. Have a licensed Propane gas dealer make all connections at storage tank and check all connections from tank to furnace.

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

National Fuel Gas Code or CGA codes.

8. Two-stage regulation of Propane gas is recommended.

Propane Conversion

FIRE, EXPLOSION, UNIT DAMAGE HAZARD

Failure to follow this warning could result in death, property damage and/or personal injury.

A Propane conversion accessory kit is required when operating the furnace with Propane gas.

An accessory kit shall be used to convert to propane gas use, see the furnace rating plate for the Propane conversion accessory kit part number.

34 440 01 1024 04


Alternate BTUH Input Ratings (USA Only) *

The input rating of these furnaces can be changed from the standard input rating to the alternate input rating shown in Table 8, 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.

* In the USA, 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 (609.6 to1371.6m) above sea level. Use the 2001 to 3000 (609.9 to

914.4m) column in Table 9, Table 10, Table 11 and Table 12.

Alternate Input Ratings, USA ONLY.

BTUH BTUH Natural Propane

Standard

Rating

Alternate

Rating

Gas

Orifice*

Gas

Orifice**

50,000 40,000 #44 #55

75,000 60,000 #44 #55

100,000 80,000 #44 #55

125,000 100,000 #44 #55

* See Table 11 for High Altitude

** See Table 12 for High Altitude

Manifold Gas Pressure Adjustment

SEE CHECKS AND ADJUSTMENTS, Manifold Gas Pressure

Adjustment in this manual.

MANIFOLD PRESSURE AND ORIFICE SIZE FOR HIGH ALTITUDE APPLICATIONS

NATURAL

MANI LD PRE

RE (in we) 25,000 BTU per burner

HEATING

VALUE

0 to 2000

(0 to 609.6)

2001 to 3000*

(609.9 to 914.4)*

MEAN ELEVATION ABOVE SEA LEVEL - ft(m)

3001 to 4000

(914.7 to 1219.2)

4001 to 5000

(1219.5 to 1524)

5001 to 6000

(1524.3 to 1828.8)

6001 to 7000

(1829.1 to 2133.6)

7001 to 8000

(2133.9 to 2438.4) at ALTITUDE | Orifice

BTU/CU. FT. No.

Manifold

Pressure

Orifice

No.

Manifold

Pressure

Orifice

No.

Manifold

Pressure

Orifice

No.

Manifold

Pressure

Orifice

No.

Manifold

Pressure

Orifice

No.

Manifold

Pressure

Orifice

No.

Manifold

Pressure

700

725

750

775

800

825

850

875

900

925

950

975

1000

1050

1100 wc=

44 at

42

42

42

43

3.7

3.5

3.7

3.5

3.2

3.6

4

42

42

42

42

42

42

42

3.6

3.7

3.5

3.3

3.2

3.0

2.7

2.5

44 at

42

42

42

42

42

42

42

44

3.7

3.5

3.6

3.4

3.3

3.1

2.9

2.8

2.5

3.2

42

42

42

42

44 a4

42

42

42

44

45

3.6

3.4

3.6

3.4

3.2

3.0

2.9

2.7

2.6

3.3

3.6

42

42

42

42

44 a4

42

42

42

42

44

45

3.7

3.5

3.6

3.4

3.2

3.0

2.8

2.7

2.5

2.4

3.2

3.7 a4 a4

42

42

42

42

42

42

42

44

44

45

45

3.7

3.4

3.6

3.3

3.1

2.9

2.8

2.6

2.5

3.3

3.4

3.6

3.4

NOTE: Natural gas data is based on 0.60 specific gravity. For fuels with different specific gravity consult the National Fuel Gas Code ANSI Z223.1/NFPA

54-2009 or National Standard of Canada, Natural Gas And Propane Installation Code CSA B149.1-05.

*

In the USA, 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 (609.6 to

1371.6m) above sea level. Use the 2001 to 3000 (609.9 to 914.4m) column in Table 9, Table 10, Table 11 and Table 12. fa

PROPANE GAS MANIFOLD PRESSURE (in we) 25,000 BTU per burner

HEATING VALUE MEAN ELEVATION ABOVE SEA LEVEL - ft(m) at ALTITUDE 0 to 2000 2001 to 3000* | 3001 to 4000 | 4001 to 5000 [| 5001 to 6000 6001 to 7000 7001 to 8000

BTU/CU. FT.

2500

Orifice Size

(0 to 609.6)

10.0

#54

(609.9 to 914.4)* J (914.7 to 1219.2) | (1219.5 to 1524) || (1524.3 to 1828.8) | (1829.1 to 2133.6) J (2133.9 to 2438.4)

10.0 9.0 10.0 9.4 8.5 10.0

#54 #54 #55 #55 #55

Conversion: 1 in we = .25 kPa

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/NFPA

54-2009 or National Standard Of Canada, Natural Gas And Propane Installation Code CSA B149.1-05.

* In the USA, derating of these furnaces at 2% (Natural Gas) and 4% (Propane Gas) has been tested and design-certified by CSA.


1371.6m) above sea level. Use the 2001 to 3000 (609.9 to 914.4m) column in Table 9, Table 10, Table 11 and Table 12.

440 01 1024 04 35


NATURAL GAS MANIFOLD PRESSURE (in we)

FOR THE 40k, 60k & 80k BTUH MODEL AND ALTERNATE INPUT MODELS 20,000 BTU per burner

HEATING

VALUE at ALTITUDE

BTU/CU. FT.

2001 to

(609.9 to 914.4)*

No. Pressure No. Pressure No.

700

725

750

775

800

825

850

875

900

925 44 3.7

43

44

44

3.4

3.7

3.5

43

43

43

44

44

950

975

1000

1050

1100

0 to 2000

44

44

44

46

46

(0 to 609.6)

3.5

3.3

3.2

3.6

3.3

44

44

45

45

45

3.3

3.1

3.6

3.3

3.0

3001 to 4000

(914.7 to 1219.2)

44

45

45

45

46

Pressure

3.7

3.5

3.3

3.6

3.4

3.2

3.7

3.5

3.2

3.0

4001 to 5000 to 1524)

No.

44

44

44

45

42

43

43

44

45

45

46

Pressure

3.4

3.2

3.1

3.5

3.1

3.6

3.4

3.6

3.4

3.4

2.9

- tim

5001 to 6000

(1524.3 to 1828.8)

No. Pressure

.

.

.

:

.

.

:

:

.

6001 to 7000

(1829.1 to 2133.6)

No.

43

44

44

44

42

42

43

43

45

45

45

45

Pressure

3.3

3.6

3.4

3.2

3.5

3.3

3.7

3.5

3.6

3.5

3.3

3.4

7001 to 8000

(2133.9 to 2438.4)

44

44

45

45

45

46

43

43

44

44

No.

42

42

42

3.2

3.4

3.5

3.3

3.2

3.4

Pressure

3.6

3.4

3.2

3.6

3.4

3.6

3.4

Conversion: 1 in we = .25kPa

NOTE: Natural gas data is based on 0.60 specific gravity. For fuels with different specific gravity consult the National Fuel Gas Code ANSI Z223.1/NFPA

54-2009 or National Standard of Canada, Natural Gas And Propane Installation Code CSA B149.1-05.




PROPANE GAS MANIFOLD PRESSURE (in we)

FOR THE 40k, 60k & 80k BTUH MODEL AND ALTERNATE INPUT MODELS 20,000 BTU per burner

HEATING VALUE at ALTITUDE

MEAN ELEVATION ABOVE SEA LEVEL - ft(m)

0 to 2000 2001 to 3000* | 3001 to 4000 | 4001 to 5000 | 5001 to 6000 6001 to 7000 7001 to 8000

BTU/CU. FT. (0 to 609.6) (609.9 to 914.4)* ] (914.7 to 1219.2) | (1219.5 to 1524) |] (1524.3 to 1828.8) J (1829.1 to 2133.6) | (2133.9 to 2438.4)

2500 10.0 8.9 8.4 10.0 10.0 10.0 10.0

Orifice Size #55 #55 #55

Conversion: 1 in we = .25 kPa

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/NFPA

54-2009 or National Standard Of Canada, Natural Gas And Propane Installation Code CSA B149.1-05.




The burner orifice part nos. are as follows: ce

. For operation with natural gas at altitudes above 2,000’

(609.6m), orifice change and/or manifold pressure adjustments may be required for the gas supplied. First

41 1096942 42 1011351 consult your local gas supplier, then refer to Table 9 for

43

45

1011377

1011353

44

46

1011352

1011744 required pressure change and/or orifice change for high altitudes.

47

49

1011378

1113202

48

54

1113201

1011376

For operation with Propane gas, gas orifices MUST be changed and manifold pressure MUST be maintained as

55 1011354 56 1011355 per Table 10. Orifices can be ordered through our distributor. (See Figure 33)

General Derating Rules

1. These furnaces may be used at full input rating when installed at altitudes up to 2,000’ (609.6m). When installed above 2,000’ (609.6m), the input must be decreased 2%

(natural) or 4% (Propane) for each 1000’ (304.8m) above sea level in the USA. In Canada, the input rating must be derated 5% (natural) or 10% (Propane) for each 1000’

(304.8m) above sea level. See Table 11 or Table 12 for required high altitude input rate.

36 440 01 1024 04


High Altitude Input Rate =

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

Elevation High Altitude Multiplier ft (m)

2001’ - 3000

(609.9 - 914.4)

Natural Gas Propane Gas

0.95 0.90

3001’ - 4000"

(914.7 - 1219.2) 0.98 0.86

4001’ - 5000

(1219.5 - 1524)

5001’ - 6000"

(1524.3 — 1828.8)

6001’ - 7000"

(1829.1 — 2133.6)

0.91

0.89

0.87

0.85

0.82

0.78

0.74

0.70

7001’ - 8000"

(2133.9 - 2438.4)

* Based on mid-range of elevation.

4. In cases where Table 9 or Table 10 is not applicable, eg. alternate input rate application, refer to Table 11 or

Table 12 for required high altitude input rate.

High Altitude Air Pressure Switch

Altitudes over 4,000’ (1219.2m) may require a different air pressure switch than the one installed at the factory. Check parts list for pressure switch and consult your distributor for part number and availability. In Canada, provincial codes may govern installation of switch. Check with governing authorities.

Changing Orifices for High Altitude

ELECTRICAL SHOCK, FIRE OR EXPLOSION

HAZARD

Failure to follow this warning could result in personal injury, death, and/or property damage.

Turn OFF electric power at fuse box or service panel and gas supply at manual valve in gas valve, lockout and tag switch with a suitable warning label, when installing orifices. Installation of orifices requires a qualified service technician.

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

1. Disconnect gas line from gas valve.

2. Remove manifold from furnace.

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

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

Figure 33)

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

Changing Orifices

Natural Gas Input Rating Check

SEE CHECKS AND ADJUSTMENTS, Natural Gas Input Rating

Check in this manual.

Final Gas Piping Check

AN TLE:



Never test for gas leaks with an open flame. Use a commercially available soap solution made specifically 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 disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2” PSIG. Close the manual shut-off valve before testing at such pressures.

. When installation is complete, test all pipe connections for leaks with the gas pressure less than 1/2” 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 the gas supply system at test pressure equal to or

less than 1/2” PSI.

4. 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.

aa

RISQUE D‘INDENDIE OU D‘EXPLOSION

Le non-respect des avertissements de sécurité pourrait d‘entrainer des blessures graves, la mort ou des dommages materiels.

Ne jamais utiliser une flamme nue por vérifier la présence des fuites de gaz. Pour la vérification de tous les joints, utiliser plutét une solution savonneuse commerciale fabriquée spécifiquement pur la détection des fuites de gaz.

Un incendie ou une explosion peut entrainer des dommages mateériels, des blessures ou la mort.

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

1.41” (28.2mm)

1.21” (30.8mm)

440 01 1024 04 37


Electrical Wiring


Failure to follow this could result in personal injury or death.

Turn OFF electrical power at fuse box or service panel, lockout and tag switch with a suitable warning label, before making any electrical

connections and ensure a proper ground

connection is made before connecting line voltage.

Power Supply Wiring

The furnace MUST be electrically wired and grounded in accordance with local codes, or in the absence of local codes with the latest edition of The National Electric Code, ANSI NFPA 70 and/or The Canadian Electric Code CSA C22.1.

All wiring from furnace to optional equipment MUST conform to local codes or, in the absence of local codes with the latest edition of The National Electric Code, ANSI NFPA 70 and/or The

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 FURNACE LIFE HAZARD

Failure to follow this caution 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.

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 connection 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 35° C rise and be sized for the unit maximum amps stated on the rating plate. Add the full load amps for potential field—installed accessories such as electronic 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 reversed. Check ALL field and control connections prior to operation.

Junction Box (J-Box) Relocation

HUMIDIFIER - 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 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 levels. See “Furnace Wiring Diagram” .

Electrical Connections

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

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.

Remove two screws holding J-Box to casing.

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

Clip wire tie holding J-Box wires.

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.

115V. 60. Hz

Eye

22) ow

BK

{6

— a Connee

_

-

Models may have 1 or 2 f pressure

\- switches

Ground Box

| Low Voltage

Terminal

; Board __ me -

Be

—

NOTE: 115 VAC/60Hz/single-phase ~

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

* Permissible limits of voltage at which unit will operate satisfactorily

25-24-90-2

Heat anticipator setting will need to be measured if 24VAC humidifier is installed. Measure current in series from R to W at the thermostat. Be sure 24VAC humidifier is wired up to control. Allow furnace to operate for two minutes before recording the AC amperage reading. Set anticipator on thermostat to recorded value.

Optional Equipment

38 440 01 1024 04


Furnace Control Fuse

The 24V circuit contains a 5-amp, automotive-type fuse located on furnace control. (See Figure 35) 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

Blower Off

Delay Jumper ~ Diagnostic Light

24 VAC

HUM

115 VAC

“~ HUM

~ EAC

25-24-98

Ductwork and Filter

4 WARNING



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 comply with

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

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

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

8. For furnaces installed without a cooling coil it is recommended 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 manual. Manually operated dampers MUST be equipped with a means to prevent furnace or air conditioning operation unless damper is in the full heat or cool position.

4 __ WARNING


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.

Connections

NOTE: On upflow installations, return air can enter through either side, both sides, or the bottom. On horizontal or downflow installations 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 adjacent to the living area, the system should be carefully designed with returns to minimize noise transmission through the return grille. Any blower moving a high volume of air will produce audible noise which could be objectionable to when the unit is located very close to living areas. It is advisable to route the return air ducts under the floor or through the attic.

1. For side connections using a 16” x 25” (406.4 x 635mm) filter , cut out the embossed area shown in Figure 36. This will provide a 141/o” x 221'/5” (368.3 x 571.5mm) approximate opening.

440 01 1024 04 39


A= 141/,” Height of Cutout for 16” x 25” Filter

B = 221/5” Width of Cutout for 16” x 25” Filter

Side Return Air Cutout io

Embossed Area on Side of Furnace aa Furnace

Bottom

NOTE: Furnaces with 5 ton cooling rating may require both

(left and right) side return or one side and bottom return (see notes in Circulation Air Blower Data). Side return air duct(s) is not permitted with horizontal or downflow furnace installation.

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

8. 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 recommended for return and supply connections to furnace. o Side Mounted Filter Rack

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 removing. 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 38 and

Figure 39.

Bottom Mounted Filter Rack in(mm)

Center Clip side-to-side \ uo

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 barrier.

Filters

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 conditioning.

Insulation

1. Insulate ductwork installed in attics or other areas exposed to outside temperatures with a minimum of 2” (50.8mm) insulation and vapor barrier.

2. Insulate ductwork in indoor unconditioned areas with a minimum of 1” (25.4mm) insulation with indoor type vapor

9” Se

(228.6)

25-24-18-1

Slide filter clips towards back before removing

Filter Clip Construction in(mm)

11/5” a

(81) SON

A Filter must be used:

Filters are not supplied with these furnaces, but can be purchased from the distributor.

Use either filter type: e Washable, high velocity filters are based on a maximum air flow rating of 600 FPM.

26 Ga. Galvanized Steel

FAST part number 1008482 e Disposabie, low velocity filters are based on a maximum air flow of 300 FPM when used with filter grille. e SeeCirculating Air Blower Data for additional data.

NOTE: Disposable, low velocity filters may be replaced with washable, high velocity filter providing they meet the minimum size areas. Washable, high velocity filters can be replaced ONLY with same type and size. which require larger filter media and have limited clearances on one side of furnace, require a standoff filter rack, see Figure 40, available from your distributor.

Refer to Figure 40 and for guidelines to install filters. Furnaces

40 440 01 1024 04


Standoff Filter Rack

Using Optional

Standoff Filter

Rack

25-21-45a

AUN



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

Addition Of Air Conditioning

When a refrigeration coil is used in conjunction with this unit, it must be installed parallel with or on the discharge side of the unit to avoid condensation on the heat exchanger. All furnaces are designed with a break-away duct flange on the supply air side of the furnace. This allows for installation in the horizontal right or downflow applications. The coil installation instructions must be consulted for proper coil location and installation 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.

A323” (76.2mm) clearance is required on the right side of the furnace in order to run the copper or plastic condensate drain line.

Downflow Furnace Installation

Non-Combustible Floor Installation

Fabricate a plenum to the dimensions given in Table 13, for the furnace outlet. Plenum should be flanged, approximately °/,”

(19.1mm) for support.

Note: The three (8) 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

WARNING

FIRE HAZARD


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

The noncombustible subbase also must be used on downflow applications in addition to a coil box installation.

Subbase for Combustible Floor

NOTE: The three(8) 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 discharge air duct flanges on the furnace MUST be broken down to provide proper fit up to the subbase. Use duct pliers to bend the duct flanges flat onto the furnace casing. DO NOT bend the duct flanges inward (toward the heat exchangers) as air flow restrictions may occur.

| Subbases for Combustible Floors Dimensions in(mm)

Sub-base for

Combustible Floors

Sub-base for Combustible

Floor Dimensions

:

Opening In Floor

Opening In

Base For Plenum

Typical Plenum

Dimensions

Part Number H uF Ke L M N P R s T

Furnace Only

15"he 28° 4 1M lig 16"4 1P Jp 13" 13 "5

NAHHO01SB 98.5) | (7303) | ¢ge9g) | 144) | yiog | pa7is) | 68) | tggog | 198 | aga)

IM 28°/4 18/16 16"4 1814 17g 17g

NAHH002SB 40s) | (7303) | (462) | 14°64) | yioa) | cea) | 8) | tag5e) | 1889 | ca35.6)

NAHHOO3SB

28°, 213/46 16", 21'Ie 19%/4 19%/4

NAHHO10SB

246 28/4 237/16 1644 23%g 225 22'5

(627.1) | (730.3) | (698.5) | '6(4064) | (412% | oot) | 18) | e715) | 188) | 5715)

Subbase for Coil Box

NAHH004SB

15°14

(25.4)

2016 116

(522.3) | (369.9)

16116

(408)

16%, 12], 13% 13%

(412.8) | (371d) | 1568) | (gang) | 15681) | gas)

195g 20°16 18/16 16 "16 16"4 1814 17g 17g

NAHHOOSSB (181.1) (522.3) (462) (408) (412.8) 43.6) | 18) | iazge) | 1889 | ca35.6)

NAHHOO6SB 23 (284.2) | (5203) | (654) | (408) | (4128) | (655.6) | ‘8 | Gor7 | 168) | 601.7

2451, 20°16 237/16 16 "16 16", 23% 225 22"

NAHHO09SB (628.7) | (522.3) | (698.5) (408) (412.8) | (600i) | 18) | 6715) | 1568) | 6715)

Outside Dimension

Base Spacer Side To Side

Conversion: 1 in = 25.4 mm

440 01 1024 04 41


Exploded View of Base for

Downflow Cased Coil

The Subbase for Combustible Floors MUST be used when a downflow furnace is set on a combustible floor, even when the furnace is installed on a coil box.

1. Cut the opening in the floor according to Table 13. The hole in the floor must be cut to the dimensions listed in Table 13 since the base is equipped with locating tabs that center the base over the opening.

The opening in the base is 11/4” (31.8mm) shorter and 11/,”

(28.6mm) 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 13.

Note that the dimensions given are outside dimensions.

8. 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 41, Figure 42 and Figure 43.

4. Drop the plenum through the opening in the base. The flange of the plenum should rest on top of the subbase.

5. Position furnace or coil cabinet and furnace on subbase so it

aligns between the locating tabs.

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 44.

Exploded View of Sub-Base for

Furnace ONLY

T aa ~S

Ee SSN

A

Ko

Plenum mS) eB

Low

a Combustible

Floor Base a, |

2” (60.8mm)

BF

TY

Bp

Yip 25-20-46

A= 41/4’ (108mm) Minimum clearance from back of hole to wall or other obstruction.

BYwwin SZ

LPR

LE a

“HOS

SS Hole In Floor >

SON oe a

Installation of

Combustible

Floor Base

\

le

to a, f

wy, —

enum 25-20-46a

25-20-52

Checks and Adjustments

NOTE: Verify the input rate of the furnace.



Turn OFF gas at shut off before connecting

Startup

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

Manual’ or to the “Operating Instructions Label?’ on the furnace.

Gas Supply Pressure

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

42


440 01 1024 04

WARNING



If any sparks, odors or unusual noises occur,

immediately shut OFF power to furnace. Check for

wiring errors or obstruction to blower.

Manifold Gas Pressure Adjustment

NOTE: Make adjustment to manifold pressure with burners operating.

1. Remove the burner compartment door.

2. Remove the blower compartment door. Place a jumper across furnace controls R to W. Replace blower compartment door.

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

4. Turn gas ON and remove adjustment screw cover on gas valve. Turn adjusting screw counterclockwise to decrease manifold pressure and clockwise to increase pressure.

Typical Gas Control Valve

Regulator Adjustment

Outlet

Pressure

Tap

'p NPT

Inlet —

Pressure

Tap 1/, NPT

OUTLET

NOTE: Adjustment screw cover MUST be replaced on gas control valve before reading manifold pressure and operating furnace.

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

Table 10, Table 11 or Table 12 under GAS SUPPLY AND

PIPING section in this manual.

6. When the manifold pressure is properly set, replace the adjustment screw cover on the gas control valve.

7. Remove blower compartment door. Remove jumper wire from thermostat connection on furnace control board.

Remove manometer connection from manifold pressure tap, and replace plug in manifold.

8. Check for leaks at plug.

9. Replace the burner and blower compartment doors.

Natural Gas Input Rating Check

NOTE: The gas meter can be used to measure input to furnace.

Rating is based on a natural gas BTU content of 1,000 BTU’s per cubic foot. Check with gas supplier for actual BTU content.

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

Use jumper wire on R to W for Heat.

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

NOTE: If meter uses a 2 cubic foot dial, divide results

(seconds) by two.

Example (BTUH)

No. of Time Per

Seconds

Per Hour Seconds

4,000 3,600 48 75,000

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

To Determine the appliance kW input rate from a .05m§ test dial that has been clocked at 80 seconds for one complete revolution.

Example (kW)

Number of

Number of seconds per

.

3 seconds Per complete (.05m) KW m*/h rotation

3,600 80 .05 2.25

3,600 + 80 x .05 = 7.2 m°/h

2.25m°/h x 10.35 kWh/m® = 23.28 kW

23.28 x 3.412 = 79,431 BTU

3. Remove jumper wire from R to W.

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

Main Burner Flame Check

Allow the furnace to run approximately 10 minutes then inspect the main burner. See Figure 46.

Check for the following (Figure 46): e Stable and blue flames. Dust may cause orange tips or wisps of yellow, but flames MUST NOT have solid, yellow tips. e Flames extending directly from burner into heat exchanger. e Flames do NOT touch sides of heat exchanger.

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

Main Burner

Burner Face

~~ 10-10-78

NOTE: For Ignitor location see Figure 47. ignitor Location in(mm)

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

440 01 1024 04 43


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.

Temperature rise is the difference between supply and return air temperatures.

To check temperature rise,use the following procedure:

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 registers and duct dampers open.

8. 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



Turn OFF power, lockout and tag switch with a suitable warning label, to furnace before changing speed taps.

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 installer dealer/contractor to select the proper speed taps for the application when the unit is installed.

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

4 __ CAUTION



Use ONLY the blower motor speed taps insert indicated in the Circulation Air Blower Data for setting air temperature rise.

Blower Speed Chart

Wire Color Motor Speed

Black High

Orange* Med-High

Blue Medium

Red Low

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

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 14) 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 replace it with the desired motor speed lead from the

“Unused Motor Lead” location. Connect the wire previously removed from the “Heat” or “Cool” terminal to the vacated “Unused Motor Lead” terminal.

3. If the same speed must be used for both heating and cooling, 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 necessary to tape off the terminal of the motor speed lead removed from the “Heat” or “Cool” terminal with electrical tape since an open terminal will not be available at the “Unused Motor

Lead” location.

Continuous-Fan Operation using “G”

Energizing the “G” terminal on the furnace control provides continuous 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 continuously at “HEAT” speed. EAC will be energized in this mode.

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 rating (8 amps) than the heat and cool taps. When the low speed blower lead is connected to this terminal, this will provide low speed blower operation whenever the other two speeds (Heat or Cool) are not energized.

Thoroughly check the system after modification to ensure the proper operation of the circulating air blower in all modes of operation.

Separate speed selections for Heat, Cool, and

Continuous Fan

Connect low speed lead from circulating motor to the “Cont.” terminal 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 between the "Heat” and "Cont.” terminals on the furnace control.

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

44 440 01 1024 04


Furnace Maintenance

See “User’s Information Manual”.

A WAR iY I N (e-

FIRE, EXPLOSION, OR CARBON MONOXIDE

HAZARD


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

yN

ELECTRICAL SHOCK, FIRE OR EXPLOSION

HAZARD .

Failure to follow this warning could result in

personal injury, death and/or property damage. e¢ Before servicing, disconnect all electrical power

to furnace.

_. ; ;

* When servicing controls, label all wires prior to disconnecting. Reconnect wires correctly.

e Verify proper operation after servicing.

440 01 1024 04 45


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. e 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. e 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:

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.

HUMIDIFIER - 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 CLEANER - 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.

46 440 01 1024 04


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


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

Control Board Diagnostic Codes (See Figure 48)

OFF

Heartbeat

ON SOLID

1 Flash

2 Flashes

3 Flashes

4 Flashes

5 Flashes

6 Flashes

6+ 1 Flashes

7 Flashes

8 Flashes

10 Flashes

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

= Normal operation or no previous Diagnostic Code

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

If code repeats immediately following power reset then replace control

= Not used

= Pressure switch(es) closed when should be open

= Pressure switch open when should be closed

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

= Flame sensed out of sequence

= Failure to ignite or flame sense lost while running

= Soft Lockout - Max trials for ignition reached (3 hr delay)

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

(roll-out switch requires manual reset)

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

= 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

SS

Acc

{gg e fi GSS &

Blower Off

Delay Jumper

>

& q ff

Diagnostic Light

| 11S VAC

|" HUM

25-24-98

440 01 1024 04 47


Technical Support Manual

Four Position Furnace

Models

a

A

Single Pipe Dual Certified

NOMP1040B08C2 NOMPDO40FO8A2

N9MP1050B12C2 N9OMPDO50F12A2

N9MP1060B12C2 N9OMPDO60F12A2

N9MP1075B12C2 N9OMPDO75F12A2 lL

“

J

J

NOMP1080F16C2 N9OMPDO80J16A2

N9SMP1100F14C2 NOMPD100J14A2

N9MP1100J20C2 N9MPD100J20A2

N9MP1125J20C2 N9OMPD125L20A2

Lewisburg, TN 37091 U.S.A.

_

@

International Comfort Products, LLC mn or

Dual Certified

N9SMP2050B12C2

N9MP2100F14C2

N9MP2100J20C2

N9MP2125J20C2

or

Dual Certified

*QOMPDO50F12C2

N9MP2075B12C2 *9MPDO75F12C2

N9MP2080F16C2 *9MPD080J16C2

*9MPD100J14C2

*9MPD100J20C2

*9MPD125L20C2

* Denotes Brand

Save This Manual For Future Reference

48

440 01 1024 03


Model Specifications

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

Specifications (N9MP1)

NOMP1040B08C N9OMP1050B12C N9OMP1060B12C N9MP1075B12C

General

Gas Type

Input (Btuh)

Output (Btuh)

Transformer Size (VA)

Nat./Propane

40,000

36,000

40

Nat./Propane

50,000

45,500

40

Nat./Propane

60,000

54,000

40

Nat./Propane

75,000

68,000

40

T’stat Heat Anticipator

Temp. Rise (°F/°C)

Electrical (Volts/Hz/FLA)

,

50

115/60/5.0

50

115/60/9.8

50

115/60/7.2

50

115/60/8.9

Rating Plate Amps

Gas & Ignition

Gas Type

Gas Valve (Honeywell)

Nat.

8.4

Propane Nat.

12.9

Propane Nat.

VR 8205S

10.9

Propane Nat.

10.1

Propane

Regulation Type

Ignition Type/Series

Manifold Press. (in we/Pa)

Std. Main Orifices (No/Size)

3.5/872

2/44

10.0/2490

2./55

3.5/872

2/42

10.0/2490

2/54

SNAP

Hot Surface

3.5/872

3/44

10.0/2490

3/55

3.5/872

3/42

10.0/2490

3/54

Furnace Controls

Furnace Control (Type )

Furnace Control

(Timed-secs}

Integrated

30

60,100,140,180

On

Off

Combustion

Flue Outlet Size (Inches)

Std. Outlet Temp? (less than) 5’ (1.5m) No Elbows (°F/°C)

2

140/60

2

140/60

2

140/60

2

140/60

Blower Pressure 5’ (1.5m} No Elbows (in we/Pa} -2.0/-498 -- -1.45/-361 --

Blower Pressure 40’ (12.2m) +5-90° DWV Elbows (in we/Pa) -1.85/-710 -- -1.30/-324 --

Transition Bx Pressure 5’ (1.5m) No Elbows (in we/Pa)

Transition Bx Pressure 40’ +5-90° DWV Elbows (in we/Pa)

-2.05/-511

-1,75/-187

-2.6/-647

-2.3/-573

-2.10/-523

-1.80/-448

-2.6/-647

-2.3/-573

Limits & Controls

Nat to Propane

Propane to Nat

*Order from Service Parts

Rollout Switch (°F/°C)

Limit Control Setting (PF/°C)

Blower Switch Pressure (Close) (in wc/Pa)

Blower Switch Pressure (Open) (in we/Pa}

Blower Switch Pressure (Close)(in we/Pa)

Blower Switch Pressure (Open){in we/Pa)

High Altitude Long Vent Kit (Part No}

Pressure Switch (Part No)

Motor Amps/RPM

Motor Type/H.P.

Cap. Mid/Votts

Filter Type & Size in(mm){qty.)

Permanent - not supplied

300/149

220/104

-0.80/-199

-0.65/-162

--

--

300/149

240/116

--

--

--

--

300/149

210/99

-0.80/-199

-0.65/-162

--

--

Standard Pressure Sw. (Part No)

Transition Switch Pressure (Close) (in we/Pa)

Transition Switch Pressure (Open) (in we/Pa)


Transition Switch Pressure (Close} (in we/Pa)


1175725

-0.75/-187

-0.60/-149

High Altitude Pressure Sw. (Part No}

Transition Switch Pressure (Close}(in we/Pa}


Long Vent Kit (Part No}


Blower Switch Pressure (Close){in we/Pa)

1175725

-0.75/-187

-0.60/-149

--

--

__

1013802

-2.2/-548

-2.0/-498

1013803

-2.0/-498

-1.8/-448

--

--

__

1013802

-2.2/-548

-2.0/-498

1013803

-2.0/-498

-1.8/-448

Blower Switch Pressure (Close) (in we/Pa}



Transition Switch Pressure (Open)(in we/Pa}

5.0/960

PSC/'iq

10.0/850

PSC/"p

8.0/1050

PSC/"p

7.5/370 7.51370 7.51370

16x25x1 (406x635x25) | 16x25x1(406x635x25) | 16x25x1(406x635x25}

1,2 1'p,2,24 5,3 1'p,2,24 5,3

300/149

210/99

Blower Data

Blower Size D x W in(mm) 11 x 8(279 x 203) 11 x 8(279 x 203) 11 x 8(279 x 203) 11 x 8(279 x 203)

Cool Cap. (Tons) @ .5 in we (125 Pa} L, ML, MHi & Hi

--

--

--

--

8.0/1050

PSC/"fp

7.5/370

16x25x1 (406x635x25)

1"p,2,21fo,3

Gas Conversion Kits for 50k & 75k Gas Conversion Kits for 40k & 60k

NAHAO01LP (1172958*)

NAHAO01NG (1172960*)

Nat to Propane

Propane to Nat

*Order from Service P arts

NAHAOO3LP (1174906*)

NAHAOO4NG (1174907*)

44001 1024 04





NOMP1080F16C NOMP1100F14C NOMP1100J20C N9OMP1125J20C

General

Gas Type

Input (Btuh)

Output (Btuh)


Nat./Propane

80,000

72,000

40

Nat./Propane

100,000

91,000

40

Nat./Propane

100,000

96,500

40

Nat./Propane

125,000

113,750

40

T’stat Heat Anticipator 50 50 50 50

Temp. Rise (°F/°C) 35-65/19-36 40-70/22-38 40-70/22-38 40-70/22-38

Electrical (Volts/Hz/FLA) 115/60/9.0 115/60/9.0 115/60/10.5 115/60/11.2

Rating Plate Amps

Gas & Ignition

Gas Type


Nat.

12.9

Propane Nat.

10.1

Propane Nat.

VR 8205S

14.4

Propane Nat.

15.0

Propane

Regulation Type


Manifold Press. (in we/Pa) 3.5/872 10.0/2490 3.5/872

Hot Surface

10.0/2490

SNAP

3.5/872 10.0/2490 3.5/872 10.0/2490

Std. Main Orifices (No/Size) 4/44 4/55 4/42 4(54 4/42 4(54 5/42 5/54

Furnace Controls

Furnace Control (Type )

Furnace Control

(Timed-secs}

On

Off

Integrated

30

60,100, 140,180

Combustion



2

140/60

3

140/60

3

140/60

3

140/60

Blower Pressure 5’ (1.5m) No Elbows {in wc/Pa) -- -1.8/-448 -1.8/-448 -1.8/-448

Blower Pressure 40’ (12.2m)+5-90° DWV Elbows (in we/Pa) -- -1.7/-243 -1.7/-243 -1.7/-243


Transition Bx Pressure 40’ (12.2m} +5-90° DWV Elbows (in we/Pa}

-2.6/-647

-2.5/-623

-2.6/-647

-2.5/-623

-2.6/-647

-2.5/-623

-2.6/-647

-2.5/-623

Limits & Controls

Nat to Propane

Propane to Nat


Rollout Switch (°F /°C)

Limit Contro! Setting (°F/°C) 230/110 230/110 220/104 190/88


300/149

1013811

300/149

1013801

300/149

1013802


Blower Switch Pressure (Open) {in we/Pa)

High Altitude Pressure Sw. (Part No) 1013812 1013803 1013803 1013157

Long Vent Kit (Part No) -- NAHAO01LV NAHAO01LV --



--

--

--

--

--

--

-2.0/-498

-1.8/-448

--

--

-2.0/-498

-1.8/-448

-1,3/-234

-1.1/-274




Blower Switch Pressure (Open){in we/Pa)

Transition Switch Pressure (Close}{in we/Pa}



-1,8/-448

-1.6/-398

--

--

-1.5/-374

-1,3/-324

--

-2.3/-573

-2.1/-523

--

--

-2.0/-498

-1.8/-448

1013518

-2.2/-548

-2.0/-498

--

--

-2.0/-498

-1.8/-448

1013518

-1.8/-448

-1.6/-398

-0.9/-224

-0.7/-174

-1.7/-423

-1.5/-374

High Altitude Long Vent Kit (Part No} -- NAHAO03LV --



--

--

-1.0/-249

-0.8/-199

-1.0/-249

-0.8/-199

--

--

--

--

--






--

--

--

--

--

1013165

-0.7/-423

-0.6/-149

-1,4/-349

-1.2/-299

--

--

--

Blower Data

Blower Size D x W in(mm) 11 x 8(279 x 203) 11 x 8(279 x 203) 11 x 8(279 x 203} 11 x 8(279 x 203}

--

--

Motor Amps/RPM

Motor Type/H.P.

10/1050

PSC/"fo

10/1050

PSC/"fo

13/900

PSCFI,

13/900

PSCFI,

Cap. Mfd/Volts

Filter Type & Size in(mm){(qty.} Permanent - not supplied

Cool Cap. (Tons) @ .5 in we (125 Pa) L, ML, MHi & Hi

10/370

16x25x1 (406x635x25)

21 4,3,34Jo,4

10/370

16x25x1 (406x635x25} | 16x25x1(406x635x25)(2) | 16x25x1 (406x635x25)(2)

11J,2,3,3'Jo,

40/370

34J9,4,44o,5

40/370

34J9,4,44o,5

Gas Conversion Kits for 100k & 125k Gas Conversion Kits for 80k

300/149

1013166

NAHAO01LP (1172958*)

NAHAO01NG (1172960*)

Nat to Propane

Propane to Nat




50 Specifications are subject to change without notice. 44001 1024 04




N9MP2050B12C | NOMP2075B12C | N9MP2080F16C N9MP2100F14C N9MP2100J20C | N9MP2125J20C

General

Gas Type

Input (Btuh)

Output (Btuh)


Nat./Propane

50,000

45,500

40

Nat./Propane

75,000

68,000

40

Nat./Propane

80,000

72,000

40

Nat./Propane

100,000

91,000

40

Nat./Propane

100,000

96,500

40

Nat./Propane

125,000

113,750

40

T’stat Heat Anticipator 50 50 50 50 50 50

Temp. Rise (°F/°C) 35-65/19-36 40-70/22-38 35-65/19-36 40-70/22-38 40-70/22-38 40-70/22-38

Electrical (Volts/Hz/FLA) 115/60/9.8 115/60/8.9 115/60/9.0 115/60/9.0 115/60/10.5 115/60/11.2

Rating Plate Amps

Gas Type


Regulation Type


12.9 10.1 12.9

VR 8205S

10.1 14.4

Nat. | Propane | Nat. | Propane | Nat. | Propane | Nat. | Propane | Nat. | Propane | Nat. | Propane

15.0

Gas & Ignition

SNAP

Hot Surface



3.5/872 | 10.0/2490 | 3.5/872 | 10.0/2490 | 3.5/872 | 10.0/2490 | 3.5/872 | 10.0/2490 | 3.5/872 | 10.0/2490 | 3.5/872 | 10.0/2490

2/42 2/54 3/42 3/54 4/44 4/55 4/42 4/54 4/42 4/54 5/42 5/54

Furnace Controls

Furnace Control (Type)

Furnace Control

(Timed-secs}

On

Off

Integrated

30

60,100, 140,180

Combustion



2

140/60

2

140/60

2

140/60

3

140/60

3

140/60

3

140/60

Blower Pressure 5’ (1.5m} No Elbows (in we/Pa} -- -1,.8/-448 -- -1.8/-448 -1.8/-448 -1.8/-448

Blower Pressure 40’ (12.2m) +5-90° DWV Elbows (in we/Pa} -- -1,3/-324 -- -1.7/-243 -1.7/-243 -1.7/-243


Transition Bx Pressure 40’ (12.2m) +5-90° DWV Elbows

(in we/Pa}

-2.6/-647

-2,3/-573

-2.6/-647

-2.3/-573

-2.6/-647

-2.5/-623

-2.6/-647

-2.5/-623

-2.6/-647

-2.5/-623

-2.6/-647

-2.5/-623

Nat to Propane

Propane to Nat


Rollout Switch (°F /°C)

Limit Control Setting (F/°C)


300/149

230/110

--

Limits & Controls

240/116

Standard Pressure Sw. (Part No) 1013802 1013801 1013811 1013801 1013802 1013166

--

300/149 300/149

210/99

--

300/149

230/110

--


Transition Switch Pressure (Close) (in we/Pa}


--

-2.2/-548

-2.0/-498

--

-2.3/-573

-2.1/-523

--

-1,8/-448

-1.6/-398

--

-2.3/-573

-2.1/-523

--

-2.2/-548

-2.0/-498

-1.1/-274

-1.8/-448

-1.6/-398

High Altitude Pressure Sw. (Part No) 1013803 1013803 1013812 1013803 1013803 1013157





--

--

-2.0/-498

-1.8/-448

--

--

-2.0/-498

-1.8/-448

--

--

-1.5/-374

-1,3/-324

--

--

-2.0/-498

-1.8/-448

--

--

-2.0/-498

-1.8/-448

-0.9/-224

-0.7/-174

-1.7/-423

-1.5/-374

Long Vent Kit (Part No) -- NAHAO01LV -- NAHAO01LV NAHAO01LV --



Blower Switch Pressure (Open) (in we/Pa)



--

--

--

--

--

1013518

-1.0/-249

-0.8/-199

-2.0/-498

-1.8/-448

--

--

--

--

--

1013518

-1.0/-249

-0.8/-199

-2.0/-498

-1.8/-448

1013518

-1.0/-249

-0.8/-199

-2.0/-498

-1.8/-448

--

--

--

--

--

High Altitude Long Vent Kit (Part No) -- NAHAQO3LV -- NAHAQO3LV --


Blower Switch Pressure (Close) (in we/Pa)})




1013165

-0.7/-423

--

--

1013165

-0.7/-423

Blower Data

Blower Size D x W in(mm) 11 x 8(279 x 2038) | 11x 8(279x 203) | 11x10(279x 254) | 11x10(279x 254) | 11x10(279x 254) | 11x10(279 x 254)

Motor Amps/Rpm

Motor Type/H.P.

--

--

--

--

--

10/850

PSCI"/o

-0.6/-149

-1,4/-349

-1.2/-299

8.0/1050

PSCI"/o

--

--

--

10/1050

PSCI"/p

10/1050

PSC/"/o

-0.6/-149

-1,4/-349

-1.2/-299

13/900

PSCH/,

--

--

--

13/900

PSCH/,

--

--

Cap. Mfd/Volts

Filter Type & Size in(mm)(qty.),



7.5/370

16x25x1

(406x635x25)

112,21 5,3

7.5/370

16x25x1

(406x635x25)

112,21 5,3

10/370

16x25x1

(406x635x25)

21 19,3,34Jo,4

10/370

16x25x1

(406x635x25)

11J,2,3,3'Jo,

40/370

16x25x1

(406x635x25}{2)

34J9,4,44o,5

40/370

16x25x1

(406x635x25}{2)

34J9,4,44o,5

Gas Conversion Kits for 50k, 75k, 100k & 125k Gas Conversion Kits for 80k

300/149

220/104

--

300/149

190/88

-1,3/-234

NAHAO01LP (1172958*)

NAHAO01NG (1172960*)

Nat to Propane

Propane to Nat




44001 1024 04 Specifications are subject to change without notice. 51



Specifications (N9MPD)

N9OMPDO40F08A N9OMPDO50F12A N9OMPDOG60F12A NOMPDO75F12A

General

Gas Type Nat./Propane Nat./Propane Nat./Propane Nat./Propane

Input (Btuh)

Output (Btuh)

40,000

37,000

50,000

46,000

60,000

55,000

75,000

69,000

Transformer Size (VA) 40 40 40 40

T’stat Heat Anticipator

Temp. Rise (°F/°C)

.

50

35-65/19-36

-

50

35-65/19-36

.

50

40-70/22-38

—

50

40-70/22-38

Electrical (Volts/Hz) 115/60 115/60 115/60 115/60

Rating Plate Amps

Gas & Ignition

Gas Type


Nat.

8.6

Propane Nat.

12.9

Propane

VR 8205S

Nat.

10.6

Propane Nat.

10.1

Propane

Regulation Type



Std. Main Orifices (No/Size}

3.5/872

2/44

10.0/2490 | 3.5/872 | 10.0/2490

2/55 2/42 2/54

SNAP

Hot Surface

3.5/872

3/44

10.0/2490 | 3.5/872

3/55 3/42

10.0/2490

3/54

Furnace Controls


Furnace Control

(Timed-secs}

On

Off

Integrated

30

60,100, 140,180

Combustion

Flue Outlet Size (Inches) 2 2 2 2

Std. Outlet Temp? (less than) 5’ No Elbows (°F/°C) 140/60 140/60 140/60 140/60

Blower Pressure 5’ (1.5m} No Elbows (in we/Pa} -2.00/-249 -- -1.90/-473 --

Blower Pressure 40’ (12.2m)+5-90° DWV Elbows (in we/Pa)


Transition Bx Pressure 40’ (12.2m)+5-90° DWV Elbows (in we/Pa)

-1.90/-473

-0,90/-224

-0,90/-224

--

-2.6/-647

-2.3/-573

-1.52/-379

-1,10/-274

-1,05/-398

-2.6/-647

-2.3/-573

Limits & Controls

Rollout Switch °F /°C)

Limit Control Setting (°F/°C)

300/149

230/110






300/149

250/121

1175818

-0.70/-174

-0,55/-137

300/149

260/127

1013802

~2.2/-548

-2.0/-498

1175726

-0.65/-162

-0,50/-125






Long Vent Kit (Part No)

-1.24/-309

-1.05/-261

-0.95/-237

-0.80/-199

-0.60/-149

-0,45/-112

--

--

--

--

-2.0/-498

-1.8/-448

-1.01/-252

-0.86/-214

-0.95/-237

-0.80/-199

-0.60/-149

-0,45/-112

Blower Data

Blower Size D x W in(mm) 11 x 8(279 x 203) 11 x 8(279 x 203) 11 x 10(279 x 254} 11 x 10(279 x 254}

Motor Amps/RPM

Motor Type/H.P.

Cap. Mid/Volts

Filter Type & Size in(mm)(aty.) Permanent — not supplied


5.0/960

PSC/'i4

10.0/850

PSC/"/p

8.0/1050

PSC/"/p

8.0/1050

PSC/'Ip

10.0/370 7.51370 7.51370 7.5370

16x25x1 (406x635x25) | 16x25x1(406x635x25) | — 16x25x1 (406x635x25) | 16x25xt (406x635x25)

{15,2 115,2,2"5.3 115,2,2"5.3 11),,2,21/53

Gas Conversion Kits 50k & 75k Gas Conversion Kits for 40k & 60k

Nat to Propane

Propane to Nat













NAHAO01LP (1172958*)

NAHAO01NG (1172960*)

Nat to Propane

Propane to Nat




300/149

240/116

1013802

--

--

-2.2/-548

-2.0/-498

--

--

-2.0/-498

-1.8/-448

52

Specifications are subject to change without notice. 44001 1024 04



Specifications (N9MPD)

NOMPDO80J16A NOMPD100J14A N9MPD100J20A N9OMPD125L20A

General

Gas Type

Input (Btuh)

Output (Btuh)

Nat./Propane

80,000

73,600

Nat./Propane

100,000

92,000

Nat./Propane

100,000

92,000

Nat./Propane

125,000

115,000

Transformer Size (VA) 40 40 40 40

T’stat Heat Anticipator 50 50 50 50

Temp. Rise (°F/°C) 35-65/19-36 40-70/22-38 40-70/22-38 40-70/22-38

Electrical (Volts/Hz) 115/60 115/60 115/60 115/60

Rating Plate Amps

Gas & Ignition

Gas Type


Nat.

12.9

Propane Nat.

10.1

Propane Nat.

VR 8205S

14.4

Propane Nat.

15.0

Propane

Regulation Type

IgnitionType/Series



3.5/872

4/44

10.0/2490

4/55

3.5/872

4/42

Hot Surface

10.0/2490

4(54

SNAP

3.5/872

4/42

10.0/2490

4(54

3.5/872

5/42

10.0/2490

5/54

Furnace Controls


Furnace Control

(Timed-secs}

Integrated

30

60,100, 140,180

On

Off

Combustion



2

140/60

3

140/60

3

140/60

3

140/60

Blower Pressure 5’ (1.5m} No Elbows (in we/Pa} -- -1.8/-448 -1.8/-448 -1.8/-448

Blower Pressure 40’ (12.2m) +5-90° DWV Elbows (in we/Pa}


Transition Bx Pressure 40’ (12.2m) +5-90° DWV Elbows (in we/Pa)

--

-2.6/-647

-2.5/-623

-1.7/-243

-2.6/-647

-2.5/-623

-1.7/-243

-2.6/-647

-2.5/-623

-1.7/-243

-2.6/-647

-2.5/-623

Nat to Propane

Propane to Nat


Limits & Controls

Rollout Switch (°F/°C) 300/149 300/149 300/149

Limit Control Setting (F/°C)





Transition Switch Pressure (Open) (in we/Pa) -1,3/-324 -2.0/-498 -2.0/-498 -1.6/-398





220/104

1013812

--

--

-1.5/-374

--

--

-1.0/-249

220/104

1013802

--

--

-2.2/-548

--

--

-1.8/-448

220/104

1013802

--

--

-2.2/-548

--

--

-1.8/-448

190/88

1013166

-1,3/-234

-1.1/-274

-1,8/-448

Transition Switch Pressure (Close) (in we/Pa) -1,2/-299 -2.0/-498 -2.0/-498

-0.9/-224

-0.7/-174

-1.7/-423

-1.5/-374

Long Vent Kit (Part No) -- NAHA002LV --

Motor Amps/Rpm

Motor Type/H.P.

Cap. Mfd/Volts






1013515

-1.0/-249

-0.8/-199

-1.7/-423

-1.5/-374







--

--

--

--

--

--

--

--

--

--

--

NAHAO03LV

1013165

-0.7/-423

-0.6/-149

-1,4/-349

-1.2/-299

--

--

--

--

--

--

--

--

--

--

Blower Data

Blower Size D x W in(mm) 11 x 10(279 x 254)

10/1050

PSC/"fo

10/370

11 x 10(279 x 254)

10/1050

PSC/"fo

10/370

11 x 10(279 x 254)

13/900

PSCFI,

40/370

--

11 x 10(279 x 254)

13/900

PSCFI,

40/370

Filter Type & Size in(mm){(qty.} Permanent - not supplied


16x25x1 (406x635x25)

21 /5,3,3!Jo,4

16x25x1 (406x635x25} | 16x25x1(406x635x25)(2) | 16x25x1 (406x635x25)(2)

1"/5,2,3,3'/> 31/0,4,4o,5 31/0,4,4o,5

Gas Conversion Kits for 100k & 125k Gas Conversion Kits for 80k

300/149

NAHAO01LP (1172958*)

NAHAO01NG (1172960*)

Nat to Propane

Propane to Nat




44001 1024 04




Specifications (*9MPD)

*9MPDO50F12C *9MPDO75F12C *9MPD080J16C *9MPD100J14C *9MPD100J20C *9MPD125L20C

General

Gas Type

Input (Btuh)

Output (Btuh)

Nat./Propane

50,000

46,000

Nat./Propane

75,000

69,000

Nat./Propane

80,000

73,600

Nat./Propane

100,000

92,000

Nat./Propane

100,000

92,000

Nat./Propane

125,000

115,000

Transformer Size (VA) 40 40 40 40 40 40

T’stat Heat Anticipator .50 50 50 .50 50 50

Temp. Rise (°F/°C) 35-65/19-36 40-70/22-38 35-65/19-36 40-70/22-38 40-70/22-38 40-70/22-38

Electrical (Volts/Hz) 115/60 115/60 115/60 115/60 115/60 115/60

Rating Plate Amps

Gas Type


Nat.

12.9

Propane Nat.

10.1

Propane Nat.

12.9

Propane Nat.

VR 8205S

10.1

Propane Nat.

14.4

Propane Nat.

15.0

Gas & Ignition

Propane

Regulation Type

IgnitionType/Series



3.5/872 | 10.0/2490 | 3.5/872 | 10.0/2490 | 35/872 | 10.0/2490 | 3.5/872 | 10.0/2490 | 3.5/872 | 10.0/2490 | 35/872 | 10.0/2490

2/42 2/54 3/42 3/54 4/44 4/55

SNAP

Hot Surface

4/42 4/54 4/42 4/54 5/42 5/54

Furnace Controls


Furnace Control

(Timed-secs}

Integrated

30

60,100, 140,180

On

Off

Combustion


Std. Outlet Temp° {less than) 5’ (1.5m) No Elbows (F/°C)

2

140/60

2

140/60

2

140/60

3

140/60

3

140/60

3

140/60

Blower Pressure 5’ (1.5m) No Elbows (in we/Pa} -- -- -- -1.8/-448 -1.8/-448 -1.8/-448

Blower Pressure 40’ (12.2m) +5-90° DWV Elbows (in we/Pa)

Transition Bx Pressure 5’ (1.5m) No Elbows (in we/Pa}

--

-2.6/-647

-2,3/-573

--

-2.6/-647

-2.3/-573

--

-2.6/-647

-2,5/-623

-1.7/-243

-2.6/-647

-2,5/-623

-1.7/-243

-2.6/-647

-2.5/-623

-1.7/-243

-2.6/-647

-2,5/-623

Transition Bx Pressure 40’ (12.2m) +5-90° DWV Elbows

(in we/Pa}

Rollout Switch F/°C) 300/149

Limits & Controls

300/149 300/149 300/149

Nat to Propane

Propane to Nat

Limit Control Setting (F/°C) 260/127 240/116 220/104 220/104 220/104 190/88

Standard Pressure Sw. (Part No) 1013802 1013802 1013812 1013802 1013802 1013166




--

--

-2.2/-548

--

--

-2.2/-548

--

--

-1.5/-374

--

--

-2.2/-548

--

--

-2.2/-548

-1.3/-234

-1.1/-274

-1.8/-448

Transition Switch Pressure (Open) (in we/Pa) -2.0/-498 -2.0/-498 -1.3/-324 -2.0/-498 -2.0/-498 -1.6/-398

High Altitude Pressure Sw. (Part No)





1013803

--

--

-2.0/-498

-1.8/-448

1013803

--

--

-2.0/-498

-1.8/-448

1013813

--

--

-1.2/-299

-1.0/-249

1013803

--

--

-2.0/-498

-1.8/-448

1013803

--

--

-2.0/-498

-1.8/-448

1013157

-0.9/-224

-0.7/-174

-1.7/-423

-1.5/-374

Long Vent Kit (Part No) -- -- -- NAHAO002LV --



--

--

--

-~

--

-~

-1.0/-249

-0.8/-199

--

-~

Blower Data

Blower Size D x W in(mm)

Motor Amps/RPM

Motor Type/H.P.










--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

1013515

-1.7/-423

-1.5/-374

NAHAO03LV

1013165

-0.7/-423

-0.6/-149

-1.4/-349

-1.2/-299

--

--

--

--

--

--

--

--

11x8 (279 x 203)

10/850

PSCI"/o

11x10 (279 x 254)

8.0/1050

PSCI"/o

11x10 (279 x 254)

10/1050

PSC/"/o

11x10 (279 x 254)

10/1050

PSC/"/o

11x10 (279 x 254)

13/900

PSCH I,

--

11x10 (279 x 254)

13/900

Cap. Mfd/Volts

Filter Type & Size in(mm)(qty.)



7.5/370

16x25x1

(406x635x25)

112,21 5,3

7.5/370

16x25x1

(406x635x25)

11,2,21 5,3

10/370

16x25x1

(406x635x25)

21/5,3,3')o,4

10/370

16x25x1

(406x635x25)}

11,2,3,3' fo

40/370

16x25x1

(406x635x25}(2}

31J9,4,44o,5

40/370

16x25x1

34/,4,41)5,5

Gas Conversion Kits for 50k, 75k, 100k & 125k Gas Conversion Kits for 80k


NAHAO01LP (1172958*)

NAHAO01NG (1172960*)

Nat to Propane

Propane to Nat




300/149 300/149

54

Specifications are subject to change without notice. 44001 1024 04

Low Med L Med H

CIRCULATION AIR BLOWER DATA (CFM#)

NOMP1040B08 (1) (5)

Speed

Tap

Low Med L Med H

© hn

Speed

Tap we

Speed

ap we

Sew a

‘o cS n”

©

Sent

£ x

Wi

Speed

Tap

N9MP1050B12, N9MP2050B12 (1) (5) we

Low Med L Med H

Speed we

Tap

Low Med L Med H Hi

N9MP1060F12 (1) (5)

Low Med L Med H ;

we

Pp

Low Med L Med H

MAX CFM for Factory Washable Filters

- - -

Filter Size (in/mm) CFM Lis

14” X 25” / 356 x 635 1400 661

16” X 25" 406 x 635 1600 755

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.


(5) Gray area is above maximum temperature rise range.

. . . . :

# CFM - Cubic Feet Per Minute airflow. Filter required for each return—ailr iniet.

M/s) max] filter media.

X 25” / 508 x 635 2000 944

/ *

2500

Max CFM based on 600 FPM (3.0 M/s)

1180

NOTE: Disposable filters are typically rated at 300 FPM (1.5 M/s). These filters only allow half the airflow when compared to 600 FPM (3.0 M/s) filters.

Airflow performance includes 1” (25.4mm) washable [600 FPM (3.0



N9MP1075B12, N9MP2075B12 (1)(5) “N9MPDO75F12, *9MPDO75F12 (1)(5) * Denotes Brand

Speed

Tap we

Low Med L Med H Speed

Tap we

Low Med L Med H Hi

© hn

Sew a

‘o cS n”

©

Sent

£ x

Wi

=~

G a

9°

=

=

Speed

Tap we

Low Med L Med H i

N9MPD080J16, *9MPD080J16 (1)(5) * Denote Brand

Speed

Tap we

Low Med L Med H Hi

Speed

Tap a

° fo

—_ a

_ x lu oo moO

Ss

Ye

so fo ew oO

_ xs

Lu w

°

Le om

= O fs

Os

x=






# CEM — Cubic Feet Per Minute airf cit wed f

- Cubic Feet Per Minute airflow. Filter required for eac return—air inlet. q h

/s) max] filter media.


- - -


14” X 25” / 356 x 635 1400 661

16" X25") 406 x 635 600 755

/ 508 x 635 2000 944

24” X 25” / 610 x 635 2500 1180

Max CFM based on 600 FPM (3.0 M/s) only allow half the airflow when compared to 600 FPM (3.0 M/s) filters.

56 Specifications are subject to change without notice. 44001 1024 04

a o

Sal a

£ a

=

Som

2


N9MP1100J20, N9MP2100J20, NSMPD100J20,

*9MPD100J20 * Denotes Brand (1)(5)

2 s

-_

Speed we

Tap

Low Med L Med H

~N9MP1125J20, N9MP2125J20 (2)(4)(5)N9MPD125L20,

*9MPD125L20 (2)(5) * Denotes Brand

°

3

_

Speed we

Tap

Low Med L Med H

=

ew o

2 a

a o ow oa







- - -


/ 356 x 635 1400 661

16" X25") 406 x 635 600 755 x 635 2000 o%

Max CFM based on 600 FPM (3.0 M/s)

2500 1180

# CFM - Cubic Feet Per Minute airflow. Filter required for each return—ailr iniet.

Airflow performance includes 1” (25.4mm) washable [600 FPM (3.0

M/s) max] filter media.

NOTE: Disposable filters are typically rated at 300 FPM (1.5 M/s). These filters only allow half the airflow when compared to 600 FPM (3.0 M/s) filters.

See Tables below for bellyband location on motor

Bellyband Location on *9MPD Motor

Model A

*OMPD inches mm

050F 1202 21/5 53.4

075F12C2 13/, 35.14

Bellyband Location on NOMP1 & N9MP2 Motor

Model A

NOMP 1/2 inches mm

040B08C2 15/5 41.9

050B12C2 21/5, 53.4

060B12C2 13/5 35.14 080J16C2 1g 46

{00/1402 13/, 35.14

{00J20C2 15/, 41.9

1{25L20C2 15/, 41.9

Bellyband Location on Motor

‘a

'

|, FE

| oT

1

Le

yy

075B12C2 13/5 35.14

080F16C2 1g 46

100F14C2 13/5 35.14

{00/2002

7D5I2002

15/5

Tp

41.9 a9

Bellyband Location on NOMPD Motor

N9MPD inches mm

O040F08A2 15/, 41.9

Model A

050F12A2 21g 53.1

O60F12A2 13/g 35.1

O75F12A2

080J16A2

13/g

1s

35.1

46

100J14A2 13/, 35.14

{00J20A2 15/, 41.9

1{25L20A2 15/, 41.9


CONNECTION DIAGRAM

LADDER DIAGRAM

1. if any of the original equipment wire is replaced use wire rated 105° C.

2. Use only copper wire between the disconnect switch and the furnace i

|

WARNING: ELECTRICAL SHOCK HAZARD

DISCONNECT BEFORE SERVICING

AUX LIMIT

(WHEN REQ’D)

R

MAIN LIMIT

—

Roe pO

BVSS

(WHEN USED}

= 7 i

«z NOTE 18 ewe! i

CAPACITOR

(WHEN USED) — SOMEMODELS)

COPPER CONDUCTORS

HOT

= NEUTRAL

|

} a

F100 180 se g

§

“

Ame | 3

© oO 6

1 ie sae a

= Li

SeAMP

&

3 w

Y

PRESSURE SWITCH

1 TO 2 IN SERIES

DEPENDING ON MODEL il sh wee R

6 z — BL

INDUCER \.GRN/Y

MOTOR en

NOTE #12

SENSOR ones

-T->

w pa

NOTE #13

IGNITER w

Bk

I f z

Pw la

I i i S l

'

w

P2

. BK BK

HSI

IND

[aa

Pa

8K moms

-

3 ge fF

Se 8k

JUNCTION

BOX

wT

£ 5 a W oom

1 fh

—

BK

= 20 BK

A 22 t ow

S

3

I 115V AC slower

MOTOR 3 ee

TRANSFORMER wow)

24VAC

HEAT COOL

[ensassassassansassansascansescansescansaseat \\/

Ww

BL

R

NOTE: | W

GND i

3

SPEED TAP CODE

BLACK

ORANGE

HI

MHI

COLOR CODE

BROWN ul

TO 115VAC FIELD DISCONNECT

HOT NOTE #2 rh EQUIPMENT GROUND

NEUTRAL

INTERLOCK

SWITCH

INDUCER

RELAY

HEAT/COOL

RELAY

EAC

R

@

QM 24VAC

CONT FAN

{OPT)

ROLLOUT SWITCH 1 TO 3

IN SERIES DEPENDING ON MODEL P

AUX LIMIT

(WHEN REQ’D)

MAIN LIMIT

NOTE #13

16 FUSE 5A

INDUCER

MOTOR

PSC

BLOWER

MOTOR

24VAC

NOTE #8

CAPACITOR

(SOME MODELS)

IGNITER

11SVAC

TRANSFORMER

24VAC

PRESSURE SWITCH

1TO 2 IN SERIES

COM

DEPENDING ON MODEL

J

LP PRESS. SWITCH

LP. MODELS ONLY) a

5 ot

Ox sc

5S

_ os

5 Bol

x co on x m

g

460

60 SEC.

100

140

100 SEC,

140 SEC.

4. Symbols are electrical representation only. BLUE MLO ORE TELLOW GRN/Y

8. Factory connected when LP Pressure Switch and BVSS (Chimney

Adapter Accessory Kit) are not installed.

9. Blower off-delay, gas heating selections are (60, 100,140,and 180) seconds, cooling or heat pump 90 seconds.

RED LO RED R 5. Solid lines inside circuit board are printed circuit board traces and are not depicted as shown in the legend. installation instructions for details on optimum speed selection.

10. ignition lockout wil occur after four consecutive unsuccessful trials for ignition. Control will auto-reset after three hours.

WHITE

YELLOW

WwW

Y ce

Y

@ G ff

LOW VOLTAGE FACTORY

LOW VOLTAGE FIELD comms «= || NF VOLTAGE FACTORY waz wm = {[NE VOLTAGE FIELD eee

@—& a zAarv g 5 2

Ra

CPU

NOTE #3

180 SEC.

11. Blower motor and inducer motor contain internal auto-reset thermal overload switches.

: be in a single connector or two quick connectors.

= CONDUCTOR ON CONTROL comme JUNCTION

° ome

UNMARKED TERMINAL

CONTROL TERMINAL a S 9

5

Le ee ee

333309-101 REV. B

238

OO a

OT, mom

Bop

<Bx

3180

INDUCED-COMBUSTION GAS FURNACE

CASING GROUP

Blower door

Front door

Door filler plate

Top panel gasket

Blower partition

INDUCER GROUP

Gasket inducer motor

Pressure switch(es)

Inducer assembly

PARTS REPLACEMENT INFORMATION GUIDE

Filter(s)

FILTER GROUP

HEAT EXCHANGER GROUP

Primary heat exchanger cell

Primary heat exchanger partition

Secondary heat exchanger assembly

Transition assembly

Plate gasket

GAS CONTROL GROUP

Manifold

Burner

Orifice

Flame sensor

Hot surface ignitor

Gas valve

4& WARNING

FIRE, EXPLOSION, ELECTRICAL

SHOCK AND CARBON MONOXIDE

POISONING HAZARD

BLOWER GROUP

Blower assembly

Blower hanger

Blower housing

Blower cutoff panel

Blower motor

Blower wheel

Capacitor

Capacitor strap

ELECTRICAL GROUP

Control box

Junction box

Limit switch(es)

Control board

Door switch

Transformer

Wiring harness

5-amp fuse

Failure to follow this warning could result in dangerous operation, personal injury, death or property damage.

Improper installation, adjustment, alteration, service, maintenance, or use can cause carbon monoxide poisoning, explosion, fire, electrical shock, or other conditions which may cause personal injury or property damage. Consult a qualified installer, service agency, local gas supplier, or your distributor or branch for information or assistance. The qualified installer or agency must use only factory-authorized and listed kits or accessories when modifying this product.

PRODUCT NOMENCLATURE

* 9 MP D 0 40 F 12 A #

Brand Identifier

* = Entry Level Brand

* = Brand (C,H, T)

Model Efficiency

8 = Non-Condensing, 80+% Gas Furnace

9 = Condensing, 90+% Gas Furnace

Installation Configuration

DN = Downflow

UH = Upflow/Horizontal

MP = Multiposition, Up/Down/Horizontal

MV = Multiposition, Variable Speed, Up/Down/Horizontal

Major Design Feature

1 = One (Single) Pipe

2 = Two Pipe

D = 1 or2 Pipe

L = Low NOx

X = High Efficiency

N = Single Stage

P = PVC Vent

T = Two Stage

V = Variable Speed

Engineering Rev.

Denotes minor changes

Marketing Digit

Denotes major change

Cooling Airflow

08 = 800 CFM

12 = 1200 CFM

14 = 1400 CFM

16 = 1600 CFM

20 = 2000 CFM

Cabinet Width

B= 15.5” Wide

F = 19.1” Wide

L = 24.5” Wide

Input (Nominal MBTUH)

J = 22.8” Wide

Have available the product/model number and the serial number located on the unit rating plate to ensure correct replacement parts.

TO OBTAIN INFORMATION ON PARTS: Consult your installing dealer or the classified section of your local telephone directory under the “Heating Equipment* or “Air Conditioning Contractors and Systems” headings for dealer listing by

brand name, or contact:

International Comfort Products, LLC

Consumer Relations Department

P.O, Box 128

Lewisburg, TN 37091, USA

931-270-4100

440 01 1024 04 59

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