ICP F9MAC0601714A1 User Manual GAS FURNACE Manuals And Guides 1307183L

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iii

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

Safety Labeling and Signal Words

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.

DANGER - Immediate hazards which will result in

severe personal injury or death.

Signal Words in Manuals

The signal word WARNING is used throughout

this manual in the following manner:

The signal word CAUTION is used throughout

this manual in the following manner:

WARNING - Hazards or unsafe practices which

could result in severe personal injury or death.

CAUTION - Hazards or unsafe practices which

may result in minor personal injury or product or

property damage.

NOTE - Used to highlight suggestions which will

result in enhanced installation, reliability, or

operation.

Signal Words on Product Labeling

Signal words are used in combination with

colors and/or pictures or product labels.

z_ Safety-alert symbol

When you see this symbol on the unit and in

instructions or manuals, be alert to the

potential for personal injury.

TABLE OF CONTENTS

SAFETY CONSIDERATIONS .............................. 3

INTRODUCTION ......................................... 4

CODES AND STANDARDS ................................ 4

ELECTROSTATIC DISCHARGE (ESD) ...................... 5

DIMENSIONS ........................................... 6

LOCATION .............................................. 7

LOCATION RELATIVE TO COOLING EQUIPMENT ........... 8

AIR FOR COMBUSTION AND VENTILATION ................ 8

CONDENSATE TRAP .................................... 11

INSTALLATION .......................................... 18

UPFLOW INSTALLATION ................................. 18

DOWNFLOW INSTALLATION .............................. 19

HORIZONTAL INSTALLATION ............................. 21

FILTER ARRANGEMENT ................................. 23

AIR DUCTS ............................................. 26

GAS PIPING ............................................. 27

ELECTRICAL CONNECTIONS ............................. 28

J-BOX INSTALLATION ................................... 29

VENTING ............................................... 33

SPECIAL VENTING REQUIREMENTS

FOR INSTALLATIONS IN CANADA ........................ 33

DIRECT VENT /2-PIPE SYSTEM .......................... 35

VENTILATED COMBUSTION AIR SYSTEMS ................ 35

TERMINATION REQUIREMENTS FOR THE

PROVINCES OF ALBERTA AND SASKATCHEWAN ......... 37

MAXIMUM EQUIVALENT VENT LENTH ..................... 50

MAXIMUM ALLOWABLE EXPOSED VENT LENGTHS ........ 53

MAXIMUM LENGTH OF UNINSULATED AND INSULATED .... 53

IS0 9001

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 .

INSTALLER: Affix these instructions on or adjacent to the

furnace.

CONSUMER: Retain these instructions for future

reference.

Portions of the text and tables are reprinted from NFPA 54/ANSI Z223.1-2009_, 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,

PrintedinU.S.A. 440 01 4201 03 July2012

Required Notice for Massachusetts Installations

(a)

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.

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 (30) days to comply with the above requirement; provided, however, that during said thirty (30) day period, a battery operated carbon

monoxide detector with an alarm shall be installed.

2. 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".

4. 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.

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

(c)

(d)

(e)

1. 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

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

2. A complete 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

2. 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

2Specifications are subject to change without notice. 440 01 4201 0,3

Rarefy Considerations Read these instructions thoroughly and follow all warnings or

v = _=y cautions included in literature and attached to the unit.

FIRE, EXPLOSION, ELECTRICAL SHOCK, AND CARBON

MONOXIDE POISONING HAZARD

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 service agency, local gas supplier, or your distributor

or branch for information or assistance. The qualified service

agency must use only factory-authorized and listed kits or

accessories when modifying this product.

FIRE HAZARD

Failure to follow this warning could result in personal injury,

death, or property damage.

Solvent cements and primers are combustible. Keep away

from heat, sparks and open flame. Use only in well-ventilated

areas. Avoid breathing in vapor or allowing contact with skin

or eyes.

FURNACE RELIABILITY HAZARD

Failure to follow this caution may result in unit component

damage.

Application of this furnace should be indoors with special

attention given to vent sizing and material, gas input rate, air

temperature rise, unit leveling, and unit sizing.

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,

local gas supplier, or your distributor or branch for information

or assistance. The qualified installer or agency must use only

factory-authorized kits or accessories when modifying this

product. Refer to the individual instructions packaged with the

kits or accessories when installing.

Installing and servicing heating equipment can be hazardous

due to gas and electrical components. Only trained and

qualified personnel should install, repair, or service

heating equipment. Untrained personnel can perform basic

maintenance functions such as cleaning and replacing air

filters. All other operations must be performed by trained

service personnel. When working on heating equipment,

observe precautions in literature, on tags, and on labels

attached to or shipped with furnace and other safety

precautions that may apply.

These instructions cover minimum requirements and conform

to existing national standards and safety codes. In some

instances, these instructions exceed certain local codes and

ordinances, especially those that may not have kept up with

changing residential construction practices. We require these

instructions as a minimum for a safe installation.

Follow all safety codes. Wear safety glasses, protective

clothing, and work gloves. Have a fire extinguisher available.

CUT HAZARD

Failure to follow this caution may result in personal injury.

Sheet metal parts may have sharp edges or burrs. Use care

and wear appropriate protective clothing, safety glasses and

g oves when hand ing parts, and servicing furnaces.

This is the safety-alert symbol /iX •When you see this symbol

on the furnace and in instructions or manuals, be alert to the

potential for personal injury.

Understand the signal words DANGER, WARNING, 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 a

hazard which could result in personal injury or death.

CAUTION is used to identify hazards which may result in minor

personal injury or product and property damage. NOTE and

NOTICE are used to highlight suggestions which wilt result in

enhanced installation, reliability, or operation.

1. Use only with type of gas approved for this furnace.

Refer to the furnace rating plate.

2. Install this furnace only in a location and position as

specified in the "Location" section of these instructions.

3. Provide adequate combustion and ventilation air to the

furnace space as specified in "Air for Combustion and

Ventilation" section.

4. Combustion products must be discharged outdoors.

Connect this furnace to an approved vent system only,

as specified in the "Venting" section of these

instructions.

5. 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 the "Gas Piping" section.

6. 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 the "Start-Up,

Adjustments, and Safety Check" section. See furnace

rating plate.

7. 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

handled by duct(s) sealed to the furnace casing and

terminating outside the space containing the furnace.

See "Air Ducts" section.

8. A gas-fired furnace for installation in a residential

garage must be installed as specified in the warning box

in the "Location" section. (See Figure 4)

9. The furnace may be used for construction heat provided

that the furnace installation and operation complies with

the first CAUTION in the LOCATION section on page 7

of these instructions.

10. These Multipoise Gas-Fired Furnaces are CSA

design-certified for use with natural and propane gases

(see furnace rating plate) and for installation in alcoves,

attics, basements, closets, utility rooms, crawlspaces,

and garages. The furnace is factory-shipped for use

with natural gas. A CSA (A.G.A. and C.G.A.) listed

accessory gas conversion kit is required to convert

furnace for use with propane gas.

11. See Table 1 for required clearances to combustible

construction.

12. Maintain a 1-in. (25 mm) clearance from combustible

materials to supply air ductwork for a distance of 36-in.

440 01 4201 03 Specifications subject to change without notice. 3

(914 mm) horizontally from the furnace. See NFPA 90B

or local code for further requirements. Figure 1

Minimum Clearances to

Table 1 Combustible Materials for All Units

CLEARANCE

POSITION In(mm)

REAR 0

FRONT (Combustion air openings in fur- 1 (25)

nace and in structure)

Required for service *24 (610)

All Sides of Supply Plenum "1 (25)

Sides 0

Vent 0

Top of Furnace 1 (25)

* Consult your local building codes.

13. These furnaces SHALL NOT be installed directly on

carpeting, combustible tile, or any other combustible

material other than wood flooring. In downfiow

installations, factory accessory floor base MUST be

used when installed on combustible materials and wood

flooring. Special base is not required when this furnace

is installed on manufacturer's Coil Assembly is used.

See Table 1 for clearance to combustible construction

information.

Introduction

The 4-way multipoise Category IV condensing furnace is CSA

design-certified as a direct-vent (2-pipe) and ventilated

combustion air venting installations. (See Figure3) The

furnace is factory-shipped for use with natural gas. The

furnace can be converted in the field for use with propane gas

when a factory-supplied conversion kit is used. Refer to the

furnace rating plate for conversion kit information.

This furnace is not approved for installation in mobile homes,

recreational vehicles, or outdoors.

This furnace is designed for minimum continuous return-air

temperature of 60°F (15°C) db or intermittent operation down to

55°F (15°C) db such as when used with a night setback

thermostat. Return-air temperature must not exceed 80°F

(27°C) db. Failure to follow these return-air temperature limits

may affect reliability of heat exchangers, motors, and controls

(See Figure 1)

The furnace should be sized to provide 100 percent of the

design heating load requirement plus any margin that occurs

because of furnace model size capacity increments. Heating

load estimates can be made using approved methods available

from Air Conditioning Contractors of America (Manual J);

American Society of Heating, Refrigerating, and

Air-Conditioning Engineers; or other approved engineering

methods. Excessive oversizing of the furnace could cause the

furnace and/or vent to fail prematurely.

For accessory installation details, refer to the applicable

instruction literature.

NOTE: Remove all shipping materials, parts assemblies and

literature before operating the furnace.

IFreeze Protection and Return Air

Temperature

_" SUPPLYAIR MAX 80°F/27°C

i°F

FRONT

32° F/0° C MINIMUM INSTALLED

AMBIENT OR FREEZE

PROTECTION REQUIRED

Codes and Standards

MIN 60°F/16°C

A10490

Follow all national and local codes and standards in

addition to these instructions. The installation must comply

with regulations of the serving gas supplier, local building,

heating, plumbing, and other codes. In absence of local codes,

the installation must comply with the national codes listed

below and all authorities having jurisdiction.

In the United States and Canada, follow all codes and

standards for the following:

Safety

• US: National Fuel Gas Code (NFGC) NFPA

54-2009/ANSI Z223.1-2009 and the Installation

Standards, Warm Air Heating and Air Conditioning

Systems ANSI/NFPA 90B

• CANADA: National Standard of Canada, Natural Gas

and Propane Installation Code (NSCNGPIC)

CAN/CSA B149.1-2010

General Installation

• US: NFGC and the NFPA 90B. For copies, contact the

National Fire Protection Association Inc.,

Batterymarch Park, Quincy, MA 02269; or for only the

NFGC contact the American Gas Association, 400 N.

Capitol, N.W., Washington DO 20001.

• CANADA: NSCNGPIC. For a copy, contact Standard

Sales, CSA International, 178 Rexdale Boulevard,

Etobicoke (Toronto), Ontario, M9W 1R3, Canada.

Combustion and Ventilation Air

US: Section 9.3 of the NFPA54/ANSI Z223.1-2009,

Air for Combustion and Ventilation

CANADA: Part 8 of the CAN/CSA B149.1-2010,

Venting Systems and Air Supply for Appliances

4Specifications subject to change without notice. 440 01 4201 03

Duct Systems

•US and CANADA: Air Conditioning Contractors

Association (ACCA) Manual D, Sheet Metal and Air

Conditioning Contractors National Association

(SMACNA), or American Society of Heating,

Refrigeration, and Air Conditioning Engineers (ASHRAE)

2005 Fundamentals Handbook Chapter 35.

Acoustical Lining and Fibrous Glass

Duct

• US and CANADA: current edition of SMACNA, NFPA

90B as tested by UL Standard 181 for Class I Rigid Air

Ducts

Gas Piping and Gas Pipe Pressure

Testing

• U.S.A.: NFPA 54/ANSI Z223.1-2009, NFGC; Chapters

5, 6, 7, and 8 and national plumbing codes.

• CANADA: CAN/CSA-B149.1-2010, Parts 4, 5, 6 and

In the state of Massachusetts:

• This product must be installed by a licensed plumber or

gas fitter.

• When flexible connectors are used, the maximum

length shall not exceed 36-in. (914 mm).

• When lever type gas shutoffs are used they shall be

T-handle type.

• The use of copper tubing for gas piping is not

approved by the state of Massachusetts.

Electrical Connections

• U.S.A.: National Electrical Code (NEC) ANSI/NFPA

70-2011

• CANADA: Canadian Electrical Code CSA C22.1

Electrostatic Discharge (ESD)

Precautions Procedure

FURNACE RELIABILITY HAZARD

Failure to follow this caution may result in unit component

damage.

Electrostatic discharge can affect electronic components.

Take precautions during furnace installation and servicing to

3rotect the furnace electronic control. Precautions will pre-

vent electrostatic discharges from personnel and hand tools

which are held during the procedure. These precautions will

help to avoid exposing the control to electrostatic discharge

by putting the furnace, the control, and the person at the

same electrostatic potential.

1. Disconnect all power to the furnace. Multiple

disconnects may be required. DO NOT TOUCH THE

CONTROL OR ANY WIRE CONNECTED TO THE

CONTROL PRIOR TO DISCHARGING YOUR BODY'S

ELECTROSTATIC CHARGE TO GROUND.

2. Firmly touch the clean, unpainted, metal surface of the

furnace chassis which is close to the control. Tools held

in a person's hand during grounding will be satisfactorily

discharged.

3. After touching the chassis, you may proceed to service

the control or connecting wires as long as you do nothing

to recharge your body with static electricity (for example;

DO NOT move or shuffle your feet, do not touch

ungrounded objects, etc.).

4. If you touch ungrounded objects (and recharge your

body with static electricity), firmly touch a clean,

unpainted metal surface of the furnace again before

touching control or wires.

5. Use this procedure for installed and uninstatled

(ungrounded) furnaces.

6. Before removing a new control from its container,

discharge your body's electrostatic charge to ground to

protect the control from damage. If the control is to be

installed in a furnace, follow items 1 through 4 before

bringing the control or yourself in contact with the

furnace. Put all used and new controls into containers

before touching ungrounded objects.

7. An ESD service kit (available from commercial sources)

may also be used to prevent ESD damage.

Accessories

See Specification Sheets for a list of accessories for this

product.

Loose Parts Bag Contents

Table 2 (shipped in blower compartment)

QUANTITY COMPONENT NAME

1 Air Intake Pipe Flange

1 Vent Pipe Flange

2 Coupling Flange Gaskets

10 Sharp Tip Screws (Vent and Inlet Flanges)

1 Vent Pipe Coupling

2 Vent Pipe Coupling Clamps

1 Rubber Drain Tube

4 Drain Tube Clamps

1 1/2" CPVC to 3/4" PVC Pipe Adapter

1 Gas Line Grommet

1 Junction Box Cover

1 Junction Box Base

1 Green Ground Screw

3 Blunt Tip Screws (Junction Box)

1 Thermostat Wire Grommet

Provided separately in furnace

1IDrain Extension Tube - "Z" Pipe

440 01 4201 03 Specifications subject to change without notice. 5

Figure 2 1Dimensions

(F/G9MAC)

FURNACE SIZE OUTLET WIDTH

CABINET

WIDTH

17-1/2 (445)

21 (533)

17-1/2 (445)

21 (533)

24-1/2 (622)

BOTTOM

INLET WIDTH

16 (406)

19-1/2 (495)

16 (406)

19-1/2 (495)

23 (584)

AIR INTAKE

SD5060-4

SHIP WT.

LB (KG)

0601714 15-7/8 (403) 8 3/4 (222) 154 (69)

0602120 19-3/8 (492) 10 1/2 (267) 159 (72)

0801714 15-7/8 (403) 8 3/4 (222) 164 (74)

0802120 19-3/8 (492) 10 1/2 (267) 169 (77)

1002122 19-3/8 (492) 10 1/2 (267) 179 (80)

1202422 22-7/8 (581) 12 1/4 (311) 203 (91)

6Specifications subject to change without notice. 440 01 4201 03

Location

PERSONAL INJURY AND/OR PROPERTY DAMAGE

HAZARD

Improper use or installation of this furnace may result in

3remature furnace component failure. This gas furnace may be

used for heating buildings under construction provided that:

-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 roltout and/or drawing combustion products into the

structure.

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

wired" to provide heat continuously to the structure without

thermostatic control.

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

minimize the corrosive effects of adhesives, sealers and other

construction materials. It also prevents the entrainment of

drywall dust into combustion air, which can cause fouling and

plugging of furnace components.

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

between 55°F (13°C) and 80°F (27°C), with no evening setback

or shutdown. The use of the furnace while the structure is under

construction is deemed to be intermittent operation per our

installation instructions.

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

furnace rating plate, and the gas input rate has been set to the

nameplate 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 atl HVAC

system components after construction is completed.

-Verify proper furnace operating conditions including ignition,

gas input rate, air temperature rise, and venting according to

these installation instructions.

General

These furnaces are shipped with materials to assist in proper

furnace installation. These materials are shipped in the main

blower compartment.

See Table 2 for loose parts bag contents.

This furnace must:

• be installed so the electrical components are protected

from water.

• not be installed directly on any combustible material other

than wood flooring (refer to SAFETY

CONSIDERATIONS).

be located close to the chimney or vent and attached to an

air distribution system. Refer to Air Ducts section.

be provided ample space for servicing and cleaning.

Always comply with minimum fire protection clearances

shown in Table 1 or on the furnace clearance to

combustible construction label.

CARBON MONOXIDE POISONING /COMPONENT

DAMAGE HAZARD

Failure to follow this warning could result in personal injury or

death and unit component damage.

Corrosive or contaminated air may cause failure of parts con-

taining flue gas, which could leak into the living space. Air for

combustion must not be contaminated by halogen compounds,

which include fluoride, chloride, bromide, and iodide. These

elements can corrode heat exchangers and shorten furnace

life. Air contaminants are found in aerosol sprays, detergents,

bleaches, cleaning solvents, salts, air fresheners, and other

household products. Do not installfurnace in a corrosive or con-

taminated atmosphere. Make sure all combustion and circulat-

ing air requirements are met, in addition to atl local codes and

ordinances.

The following types of furnace installations may require

OUTDOOR AIR for combustion due to chemical exposures:

• Commercial buildings

• Buildings with indoor pools

• Laundry rooms

• Hobby or craft rooms, and

• Chemical storage areas

If air is exposed to the following substances, it should not be

used for combustion air, and outdoor air may be required for

combustion:

• Permanent wave solutions

• Chlorinated waxes and cleaners

• Chlorine based swimming pool chemicals

• Water softening chemicals

• De-icing salts or chemicals

• Carbon tetrachloride

• Halogen type refrigerants

• Cleaning solvents (such as perchloroethylene)

• Printing inks, paint removers, varnishes, etc.

• Hydrochloric acid

• Cements and glues

• Antistatic fabric softeners for clothes dryers

• Masonry acid washing materials

All fuel-burning equipment must be supplied with air for fuel

combustion. Sufficient air must be provided to avoid negative

pressure in the equipment room or space. A positive seal must

be made between the furnace cabinet and the return-air duct

to prevent pulling air from the burner area.

440 01 4201 03 Specifications subject to change without notice. 7

Figure 3 1Multipoise Orientations

THE BLOWER IS LOCATED

TO THE RIGHT OF THE

AIRFLOW

BURNER SECTION,AND

CONDITIONEDAIR IS

DISCHARGED TO THE LEFT.

THE BLOWER IS

LOCATEDABOVE THE

BURNERSECTION, AND

CONDITIONED AIR IS

DISCHARGED DOWNWARD. AIRFLOW

THE BLOWER IS

LOCATEDBELOWTHE

BURNER SECTION,AND

CONDITIONED AIR IS

DISCHARGED UPWARD.

I HORIZONTAL RIGHT1AF F_LCW

THE BLOWER IS

LOCATED TO THE LEFT

OF THE BURNER SECTION,

AND CONDITIONED AIR IS

DISCHARGED TO THE RIGHT.

L12F010

FIRE, INJURY OR DEATH HAZARD

Failure to follow this warning could result in personal injury,

death and/or property damage.

When the furnace is installed in a residential garage, the burn-

ers and ignition sources must be located at least 18-in. (457

mm) above the floor. The furnace must be located or protected

to avoid damage by vehicles. When the furnace is installed in

a public garage, airplane hangar, or other building having a haz-

ardous atmosphere, the furnace must be installed in accord-

ance with the NFPA 54/ANSI Z223.1-2009 or CAN/CSA

B149.1-2010. (See Figure 4)

Figure 4 1Installation in a Garage

18-1N. (457.2 mm)

MINIMUM TO BURNERS A93044

FIRE HAZARD

Failure to follow this warning could result in personal injury,

death and/or property damage.

Do not install the furnace on its back or hang furnace with con-

trol compartment facing downward. Safety control operation will

be adversely affected. Never connect return-air ducts to the

back of the furnace. (See Figure 5)

Figure 5 _Prohibited Installations

BACK POSITIONED

DOWNWARD

BACK POSITIONED

UPWARD

RETURN

CUT IN

BACK

L12F011

Location Relative to Cooling

Equipment

The cooling coil must be installed parallel with, or on the

downstream side of the unit to avoid condensation in the heat

exchangers. When installed parallel with the furnace, dampers

or other flow control must prevent chilled air from entering the

furnace. If the dampers are manually operated, they must be

equipped with means to prevent operation of either unit unless

the damper is in the full-heat or full-cool position.

Air for Combustion and

Ventilation

Introduction

Direct Vent (2-Pipe) Applications

When the furnace is installed as a direct vent (2-pipe) furnace,

no special provisions for air for combustion are required.

However, other gas appliances installed in the space with the

furnace may require outside air for combustion. Follow the

guidelines below to insure that other gas appliances have

sufficient air for combustion.

8 Specifications subject to change without notice. 440 01 4201 03

Ventilated Combustion Air Applications

When the furnace is installed using the ventilated combustion

air option, the attic or crawlspace must freely communicate with

the outdoor to provide sufficient air for combustion. The

combustion air pipe cannot be terminated in attics or

crawlspaces that use ventilation fans designed to operate

during the heating season. If ventilation fans are present in

these areas, the combustion air pipe must terminate outdoors

as a Direct Vent/2-Pipe system.

All air for combustion is piped directly to the furnace from a

space that is well ventilated with outdoor air (such as an attic,

crawlspace, or equipment closet) and the space is well isolated

from the living space or garage. In addition, other gas

appliances installed in the space with the furnace may require

outside air for combustion. Follow the guidelines below to

insure that the roof or crawlspace walls have sufficient free

area to provide sufficient air for combustion and ventilation for

the furnaces. The guidelines below can be used to insure that

other gas appliances have sufficient air for combustion.

Provisions for adequate combustion, ventilation, and dilution air

must be provided in accordance with:

• U.S. Installations: Section 9.3 of the NFPA 54/ANSI

Z223.1-2009 , Air for Combustion and Ventilation and

applicable provisions of the local building codes.

• Canadian Installations: Part 8 of

CAN/CSA-B149.1-2010, Venting Systems and Air

Supply for Appliances and all authorities having

jurisdiction.

FURNACE CORROSION HAZARD

Failure to follow this caution may result in furnace damage.

Air for combustion must not be contaminated by halogen

compounds, which include fluoride, chloride, bromide, and

iodide. These elements can corrode heat exchangers and

shorten furnace life. Air contaminants are found in aerosol

sprays, detergents, bleaches, cleaning solvents, salts, air

fresheners, and other household products.

CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in personal injury or

death.

The operation of exhaust fans, kitchen ventilation fans, clothes

dryers, attic exhaust fans or fireplaces could create a

NEGATIVE PRESSURE CONDITION at the furnace. Make-up

air MUST be provided for the ventilation devices, in addition to

that required by the furnace. Refer to the Carbon Monoxide

Poisoning Hazard warning in the venting section of these

instructions to determine if an adequate amount of make-up air

is available.

lAir for Combustion, Ventilation,

Figure 6 and Dilution for Outdoors

SQ INI

OUTDOORS

(305ram) 12" MAX

1 SQIN. _

PER 2000

BTUH*

DUCTS

OUTDOORS

1 SO IN.

PER 2000

BTUH* T

(305mm) 12" MAX

iiiil

(305mm)

12_,X (305mrn)

1 SQ IN.

PER

4000

BTUH*

I--

SQ IN,

PER

4000

BTUH*

CIRCULATING AIR DUCTS

ISQ IN,

TO PER 4000

OUTDOORS BTUH*

*Minimum dimensions of 3-in. (76mm)

NOTE: Use any of the following combinations of openings:

A&B, C&D, D&E, F&G

Figure 7 ICombustion Air Pipe

Point elbow down towards

back of furnace

Lt2F012

12" MINIMUM

256.0 mm

CASING SIDE ATTACHMENT

COMBUSTION AIR PIPE

(ATTIC, CRAWL SPACE, OR

EQUIPMENT CLOSET ONLY.

See AIR FOR COMBUSTION

AND VENTILATION Section)

TOP PLATE ATTACHMENT

COMBUSTION AIR PIPE

(ATTIC, CRAWL SPACE, OR

EQUIPMENT CLOSET ONLY.

See AIR FOR COMBUSTION

AND VENTILATION Section)

L12F014

440 01 4201 03 Specifications subject to change without notice. 9

Outdoor Combustion Air Method

1. Provide the space with sufficient air for proper

combustion, ventilation, and dilution of flue gases using

permanent horizontal or vertical duct(s) or opening(s)

directly communicating with the outdoors or spaces that

freely communicate with the outdoors.

2. Figure 6 illustrates how to provide TWO OUTDOOR

OPENINGS, one inlet and one outlet combustion and

ventilation air openings to the outdoors.

a. One opening MUST commence within 12-in.

(300 mm) of the ceiling and the second opening

MUST commence within 12-in. (300 mm) of the floor.

b. Size openings and ducts per Figure 6 and Table 3.

c. TWO HORIZONTAL DUCTS require 1 square inch

(25.4 square mm) of free area per 2,000 Btuh (1,100

mm2/kW) of combined input for all gas appliances in

the space per Figure 6 and Table 3.

d. TWO OPENINGS OR VERTICAL DUCTS require 1

square inch (25.4 square mm)of free area per 4,000

Btuh (550 mm2/kW) for combined input of all gas

appliances in the space per Figure 6 and Table 3.

3. ONE OUTDOOR OPENING requires:

a. 1 sq. in. (25.4 square mm)of free area per 3,000 Btuh

(734 mm2/kW) for combined input of all gas

appliances in the space per Table 3 and

b. Not less than the sum of the areas of all vent

connectors in the space.

The opening shall commence within 12-in. (300 mm) of the

ceiling. Appliances in the space shall have clearances of at

least 1-in. (25 mm) from the sides and back and 6-in. (150 mm)

from the front. The opening shall directly communicate with the

outdoors or shall communicate through a vertical or horizontal

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

communicate with the outdoors.

Table 3 Minimum Free Area Required for Each Combustion Air Opening or Duct to Outdoors

TWO HORIZONTAL DUCTS SINGLE DUCT OR OPENING TWO OPENINGS OR

VERTICAL DUCTS

(1 SQ. IN./2,000 BTUH) (1 SQ. IN./3,000 BTUH)

FURNACE (1,100 SQ. MM/KW) (734 SQ. MM/KW) (1 SQ. IN./4,000 BTUH)

INPUT (550 SQ. MM/KW)

Round Round

(BTUH) Free Area of Duct Free Area of Open- Duct Free Area of Open- Round Duct

Opening and Duct In. (mm) ing and Duct In. (mm) ing and Duct In. (mm)

Sq. In (Sq. mm) Dia Sq. In (Sq. mm) Dia Sq. In (mm) Dia.

30 (19355) 6 (152) 20 (13043) 5 (127) 15 (9678) 5 (127)

40 (25807) 7 (178) 27 (17391) 6 (152) 20 (12904) 5 (127)

50 (32258) 8 (203) 34 (21739) 7 (178) 25 (16130) 6 (152)

60 (38709) 9 (229) 40 (26087) 7 (178) 30 (19355) 6 (152)

70 (45161) 10 (254) 47 (30435) 8 (203) 35 (22581) 7 (178)

60,000

80,000

100,000

120,000

140,000*

EXAMPLE: Determining Free Area

FURNACE WATER HEATER TOTAL INPUT

100,000 + 30,000

60,000 + 40,000

80,000 + 30,000

= (130,000 divided by 4,000) = 32.5 Sq. In. for each two Vertical Ducts or Openings

= (100,000 divided by 3,000) = 33.3 Sq. In. for each Single Duct or Opening

= (110,000 divided by 2,000) = 55.0 Sq. In. for each two Horizontal Ducts

Table 4 Minimum Space Volumes for 100% Combustion, Ventilation and Dilution Air from Outdoors

OTHER THAN FAN-ASSISTEDTOTAL FAN-ASSISTEDTOTAL

(1,000'S BTUH GAS INPUT RATE) (1,000'S BTUH GAS INPUT RATE)

30 40 50 40 60 80 100 120 140

AOH Space Volume Ft3 (M3)

1,050 1,400 1,750 1,400 1,500 2,000 2,500 3,000 3,500

0.60 (29.7) (39.6) (49.5) (39.6) (42.5) (56.6) (70.8) (84.9) (99.1)

1,260 1,680 2,100 1,680 1,800 2,400 3,000 3,600 4,200

0.50 (35.6) (47.5) (59.4) (47.5) (51.0) (67.9) (84.9) (101.9) (118.9)

1,575 2,100 2,625 2,100 2,250 3,000 3,750 4,500 5,250

0.40 (44.5) (59.4) (74.3) (59.4) (63.7) (84.9) (106.1 ) (127.3) (148.6)

2,100 2,800 3,500 2,800 3,000 4,000 5,000 6,000 7,000

0.30 (59.4) (79.2) (99.1) (79.2) (84.9) (113.2) (141.5) (169.8) (198.1 )

3,150 4,200 5,250 4,200 4,500 6,000 7,500 9,000 10,500

0.20 (89.1) (118.9) (148.6) (118.9) (127.3) (169.8) (212.2) (254.6) (297.1)

6,300 8,400 10,500 8,400 9,000 12,000 15,000 18,000 21,000

0.10 (178.0) (237.8) (297.3) (237.8) (254.6) (339.5) (424.4) (509.2) (594.1)

0.00 NP NP NP NP NP NP NP NP NP

NP = Not Permitted

10 specificationssubjectto change without notice. 440 01 4201 03

CONDENSATE TRAP

FROZEN AND BURST WATER PIPE HAZARD

Failure to protect against the risk of freezing may result in

property damage.

Special precautions MUST be made if installing furnace in an

area which may drop below freezing. This can cause improper

operation or damage to equipment. If furnace environment has

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

3rotected. The use of accessory drain trap heaters, electric

heat tape and/or RV antifreeze is recommended for these

installations.

PROPERY DAMAGE HAZARD

Failure to follow this caution may result in burst water pipes

and/or 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.

DO NOT trap the drain line in any other location than at the

condensate drain trap supplied with the furnace. 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.

Figure 8 |Upflow Trap Configuration

Condensate Trap

Relief Port

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 furnace

environment has the potential of freezing, the drain trap and

drain line must be protected. Use 3 to 6 watt per foot of 115

volt, 40° F (4° C) self-regulating shielded and water proof 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. Prime the trap before furnace operation.

Condensate Trap -Upflow Orientation

When the furnace is installed in the upflow position, it is not

necessary to relocate the condensate trap or associated

tubing. See Figure 8 for upflow condensate trap information.

Refer to Condensate Drain section for information how to install

the condensate drain.

Condensate Trap -Downflow

Orientation

When the furnace is installed in the downflow position, the

condensate trap wilt be initially located at the upper left corner

of the collector box, as received from the factory. See the top

image in Figure g. When the furnace is installed in the

downflow orientation, the condensate trap must be relocated

for proper condensate drainage. See bottom image in Figure 9.

To Relocate the Condensate Trap:

• Orient the furnace in the downflow position.

• Figure 9 shows the condensate trap and tubing before and

after relocation. Refer to Figure 9 to begin the trap conversion.

• Refer to Condensate Drain section for information how to install

the condensate drain.

Vent Pipe Clamp Vent Elbow Clamp

Plugs Elbow

Collector Box

Plug

Sondensate Trap

Relief Port

Pressure Switch Outlet

Port

UPFLOW TRAP CONFIGURATION

MODULATING UN{TS

Representative drawing only, some models may vary in appearance. Al1306

440 01 4201 03 specificationssubjectto change without notice. 11

Figure 9 Unconverted Factory Configuration as viewed in the Downflow Orientation

Remove pressure switch tube from

pressure switch port.

Remove relief tube from relief

on condensate trap.

(_ emove trap fromcollector box.

Remove tube from

relief port.

Loosen clamp on inlet

to vent elbow.

__" (MODULATING UNITS)

Remove middle and bottom plugs.

DO NOT DISCARD.

Install plugs on.

open ports on

collector box.

Representative drawing only, some models may vary in appearance. A11585A

Downflow Trap Configuration

Trim excess tube.

Connect pressure switch

tube to port on collector

box.

Connect relief tube

port on collector box.

Attach condensate trap

with screw to collector

box.

Rotate elbow to

desired position

tighten clamp to

15 lb.-in.

Slide tube in stand-offs

to adjust length.

(MODULATING UNITS)

Connect relief tube to

relief port on condensate

trap.

Align condensate trap

over middle and bottom

ports of collector box.

Representative drawing only, some models may vary in appearance. A11585B

12 specificationssubjectto change without notice. 440 01 4201 03

Condensate Trap - Horizontal

Orientation

When the furnace is installed in the horizontal right position, the

condensate trap will be initially located at the bottom of the

collector box, as received from the factory. See the top image in

Figure 11. When the furnace is installed in the horizontal left

position, the condensate trap will be initially located at the top of

the collector box, as received from the factory. See the top image

in Figure 10. In both cases trap must be repositioned on the

collector box for proper condensate drainage. See bottom images

in Figure 10 and Figure 11.

A field-supplied, accessory Horizontal Installation Kit (trap

grommet) is required for all direct-vent horizontal installations

(only). The kit contains a rubber casing grommet designed to seal

between the furnace casing and the condensate trap. (See

Figure 17)

The field-supplied, accessory horizontal drain trap grommet

is ONLY REQUIRED FOR DIRECT VENT APPLICATIONS. It

is NOT required for applications using single-pipe or ventil-

ated combustion air venting.

NOTE: The condensate trap extends below the side of the

casing in the horizontal position. A minimum of 2 in. (51 mm) of

clearance is required between the casing side and the furnace

platform for the trap to extend out of the casing in the horizontal

position. Allow at least 1/4-in. (6 mm) per foot of slope away

from the furnace in horizontal sections of drain line.

To Relocate the Condensate Trap:

• Remove the knockout in the casing for the condensate trap.

• Install the grommet in the casing when required for direct-vent

horizontal applications.

• Orient the furnace in the desired position.

• Allow for 2 in. (51 mm) of clearance underneath the furnace for

the condensate trap and drain line.

• Figure 10 shows the condensate trap and tubing before and

after relocation in the horizontal right position.

• Figure 11 shows the condensate trap and tubing before and

after relocation in the horizontal left position.

• Refer to the appropriate figure to begin the trap conversion.

• Refer to Condensate Drain section for information how to install

the condensate drain.

The condensate trap extends below the side of the casing in

the horizontal position. A minimum of 2-in. (51 mm) of clear-

ance is required between the casing side and the furnace

31atform for the trap to extend out of the casing in the hori-

zontal position. Allow at least 1/4-in. per foot (20mm per

meter) of slope down and away from the furnace in horizontal

sections of drain line.

Figure 10 Unconverted Factory Configuration as viewed in the Horizontal Left Orientation

Remove trap from

collector box.

If alternate vent position

is required, loosen clamp Remove relief tube

on vent elbow inlet, from relief port on

condensate trap.

Remove pressure switch tube

from port on collector box.

©Remove relief tube

from port on collector

box. Remove middle and right

plug from collector box.

(MODULATING UNITS) DO NOT DISCARD

Representative drawing only, some models mayvary in appearance. A11586A

440 01 4201 03 Specificationssubjectto change without notice. 13

Figure 10 - continued Horizontal Left Trap Configuration

(_ otate elbow to

desired position and

torque clamp on inlet

15 lb.-in.

Install plugs in open

ports on collector box.

Connect relief tube to

port on collector box.

(_ Slide relief tube in

stand-offs to adjust

length.

(_ ttach condensate

trap to collector box

with screw.

Trim excess tube.

Route pressure switch tube

underneath relief tube and

connect to port on collector box.

©Align trap over middle

and right-hand port on Connect relief tube to

collector box. relief port on condensate

(MODULATING UNITS) trap.

Representative drawing only, some models mayvary in appearance.

Figure 11 1Unconverted Factory Configuration as viewed in the Horizontal Right Orientation

A11586B

(_ Remove plug from

collector box.

DO NOT DISCARD. If alternate vent position

is required, loosen clamp

on inlet of vent elbow.

Remove trap from

collector box.

(MODULATING UNITS)

Representative drawing only, some models mayvary in appearance.

14 specificationssubjectto change without notice. 440 01 4201 03

Figure 11 - continued Horizontal Right Trap Configuration

Slide relief tube in

stand-offs to adjust

length.

(_ ttach condensate trap

to collector box with

screw.

Vent elbow shown in alternate

orientation. Tighten clamp on

inlet to vent elbow 15 lb.-in.

(_ Install plug in open

port on collector box.

(MODULATING UNITS)

Align trap over middle and

right-hand port on collector box.

Representative drawing only, some models may vary in appearance. Al1281

Condensate Drain Connection

FROZEN AND BURST WATER PIPE HAZARD

Failure to protect against the risk of freezing may result in

property damage.

Special precautions MUST be made if installing furnace in an

area which may drop below freezing. This can cause improper

operation or damage to equipment. If furnace environment has

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

3rotected. The use of accessory drain trap heaters, electric

heat tape and/or RV antifreeze is recommended for these

installations.

PROPERY DAMAGE HAZARD

Failure to follow this caution may result in burst water pipes

and/or 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.

DO NOT trap the drain line in any other location than at the

condensate drain trap supplied with the furnace. 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.

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 furnace

environment has the potential of freezing, the drain trap and

drain line must be protected. A self-regulating, shielded and

waterproof heat tape rated at 3 to 6 watt per foot (10 to 20 watt

per meter) at 115 volt, 40° F (4° C) may be used to help provide

freeze protection. Wrap the drain trap and drain line with the

heat tape and secure with appropriate plastic ties. Follow the

heat tape manufacturer's recommendations. Prime the trap

before furnace operation.

Upflow/Downflow Orientation

In the Upflow or Downflow orientation, the condensate trap is

inside the furnace casing. The condensate drain must be

routed from the trap through the furnace casing. The

condensate drain can be routed through the left or right side of

the casing. (The left or right side is as you are viewing/facing

the furnace from the front.) The furnace condensate drain can

be connected to the indoor coil condensate drain, humidifier or

auxiliary drain traps as shown in Figure 12.

NOTE: On narrower casings, it may be easier to remove the

condensate trap, connect the drain line components and

re-install the condensate trap. Read the steps thoroughly to

familiarize yourself with the required steps.

For Right Side Condensate Drain:

1. Remove the 7/8-in. knock-out from the right side of the

casing. (See Figure 13 for suggested knockout removal

technique.)

2. Remove the pre-formed rubber drain tube and two

spring clamps from the loose parts bag.

3. Slide a spring clamp 1 in. (25 mm) down the plain end

(the end without the formed grommet) of the drain tube.

4. From inside the casing, insert the formed grommet end

of the elbow through the 7/8-in. knockout in the casing.

5. Pull the grommet through the casing from the outside

until it is seated in the knockout

6. Attach the plain end of the drain elbow to the outlet stub

on the drain trap. Secure the drain elbow to the trap with

the spring clamp.

The remaining drain line can be constructed from field supplied

1/2-in. CPVC or 3/4-in. PVC pipe in compliance with local

building codes. A factory-supplied 1/2-in. CPVC to 3/4-in PVC

adapter is supplied in the loose parts bag for use as required.

7. Install the adapter or connect the 1/2-in. CPVC pipe by

sliding a spring clamp over the open end of the grommet

on the outside of the furnace casing.

440 01 4201 03 specificationssubjectto change without notice. 15

8.Openthespringclampandinsertthelongendofthe

adapterofthe1/2-in.CPVCpipeintotheoutletstubon

thedraintube.

9.Connect additionalcondensatepiping to a

code-approveddrain,or to a condensatepump

approvedfor usewithacidicfurnacecondensateand

compatiblewithmineralandvegetableoils,suchas

canolaoil.

Allowatleast1/4-in.perfoot(20mmpermeter)ofslopedown

andawayfromthefurnaceinhorizontalsectionsofdrainline.

Figure 12 IExample of Field Drain Attachment

OPEN STAND

PIPE FOR

A/C OR

HUMIDIFIER

DRAIN

_u=---TEE

TO OPEN

DRAIN

Al1276

TIPS FROM CONTRACTORS: Contractors have found that

temporarily removing the inducer assembly in upflow

applications while performing the steps below, makes upflow

left-side drain connections easier.

For Left Side Condensate Drain Connection:

1. For left side condensate drainage, the drain line is routed

from the condensate trap, behind the inducer (upflow) or

gas valve (downflow) and out through the left side of the

furnace casing. A pre-formed 1/2-in. CPVC "Z" pipe is

provided with the furnace. The "Z" pipe is long enough to

extend across the casing for drain connections.

2. Locate the "Z" pipe. Remove the pre-formed drain tube

and four spring clamps from the loose parts bag.

3. The "Z" pipe is connected to the condensate trap and the

outside of the furnace by modifying the formed rubber

drain tube as shown in Figure 14.

4. Remove the formed grommet from the rubber drain tube

by cutting the elbow along the vertical line located about

1 3/8-in. (35 mm) away from the formed grommet. See

Figure 13. DO NOT DISCARD THE FORMED

GROMMET OR THE RUBBER ELBOW. Both of these

pieces will be used.

Assemble and route the drain line to the opposite side of the

furnace as detailed below:

5. Remove the knock-out from the left side of the casing.

(See Figure 13 for suggested knockout removal

technique.)

6. From the outside of the casing, insert the angled end of

the "Z" pipe through drain hole in the left side of the

casing and behind the inducer or gas valve. Allow the "Z"

pipe to temporarily rest on the blower shelf (upflow) or

burner box (downfiow). (NOTE: When the inducer

housing has been removed to ease installation in upflow

applications, this step is not needed.)

7. After inserting the "Z" pipe through the casing, slide a

spring clamp over each end of the "Z" pipe.

8. From inside the casing, insert the short end of the formed

grommet cut from the rubber drain tube through the

7/8-in. drain knockout in the casing.

9. Pull the grommet through the casing from the outside

until it is seated in the knockout.

10. Align the "Z" pipe with the long end of the grommet inside

the furnace and insert slightly. The angled end of the

tube at the other side of the casing should be facing the

front of the furnace.

11. Slide a spring clamp over the end of the remaining

rubber drain tube.

12. Attach the drain tube to the angled end of "Z" pipe and

the drain trap outlet stub. Adjust the length of "Z" pipe

inserted into the grommet at the opposite side of the

furnace as necessary for proper fit and positioning. In

both upflow and downflow orientations, the "Z" pipe

should NOT be resting on any sheet metal parts.

13. Secure the rubber elbow to the drain trap and the "Z"

pipe with spring clamps.

14. Secure the grommet to the "Z" pipe with the spring

clamp.

The remaining drain line can be constructed from field supplied

1/2-in. CPVC or 3/4-in. PVC pipe, in compliance with local

building codes. A factory-supplied 1/2-in. CPVC to 3/4-in.

PVC adapter is supplied in the loose parts bag for use as

required.

15. Install the adapter or connect the 1/2-in. CPVC pipe by

sliding a spring clamp over the open end of the grommet

on the outside the furnace casing.

16. Open the spring clamp and insert the long end of the

adapter or the 1/2-in. CPVC pipe into the outlet stub on

the drain tube.

17. Connect additional condensate piping to a

code-approved drain, or to a condensate pump

approved for use with acidic furnace condensate and

compatible with mineral and vegetable oils, such as

canola oil.

Allow at least 1/4-in. per foot (20 mm per meter) of slope down

and away from the furnace in horizontal sections of drain line.

The field-supplied, accessory horizontal drain trap grommet

is ONLY REQUIRED FOR DIRECT VENT APPLICATIONS. It

is NOT required for applications using single-pipe or ventil-

ated combustion air venting.

TIPS FROM CONTRACTORS: When installing the furnace

horizontally, use the entire drain elbow (that is, do NOT cut as

shown in Figure 14) to connect the trap to the drain line. This

helps to prevent bumps and shocks to the drain line from

damaging the furnace drain trap. Avoid misatignment of the

drain pipe which may cause kinks in the elbow.

Horizontal Orientation

1. The condensate trap outlet extends 2-in. (51 mm) below

the furnace casing. Leave enough clearance between

the furnace and the furnace platform for the trap.

2. To allow for servicing the trap, the condensate drain

elbow in the loose parts bag can be used to make a

coupler to allow for future service of the condensate trap

and drain line.

16 specificationssubjectto change without notice. 440 01 4201 03

3. Remove the knock-out for the condensate trap in the

side of the casing.

4. Install the drain trap grommet in the casing, if required for

direct-vent applications. If necessary, remove the trap,

install the grommet and re-install the trap.

5. Remove the pre-formed rubber drain tube and two

spring clamps from the loose parts bag.

6. Connect the full or modified elbow and/or grommet to the

outlet of the condensate trap with one spring clamp.

Avoid misalignment of the drain pipe which may cause

kinks in the elbow or grommet.

7. The remaining drain line can be constructed from field

supplied 1/2-in. CPVC or 3/4-in. PVC pipe, in

compliance with local building codes. A factory-supplied

1/2-in. CPVC to 3/4-in. PVC adapter is supplied in the

loose parts bag for use as required.

8. Install the adapter or connect the 1/2-in. CPVC pipe by

sliding a spring clamp over the open end of the elbow or

grommet on the outside the furnace casing.

9. Open the spring clamp and insert the long end of the

adapter or the 1/2-in. CPVC pipe into the outlet stub on

the drain tube.

10. Connect additional condensate piping to a

code-approved drain, or to a condensate pump

approved for use with acidic furnace condensate and

compatible with mineral and vegetable oils, such as

canola oil.

Allow at least 1/4-in. per foot (20 mm per meter) of slope down

and away from the furnace in horizontal sections of drain line.

Figure 13 |Knockout Removal

,5.°¢

/"1

L12F019

CUT HAZARD

Failure to follow this caution may result in personal injury.

Sheet metal parts may have sharp edges or burrs. Use care

and wear appropriate protective clothing, safety glasses and

gloves when handling parts, and servicing furnaces.

Figure 14

Cut line for left side condensate drain.

Do not discard parts after cutting,

JModify Rubber Drain Elbow

1-3/8 in

Figure 15

Lll F089

JDrain Trap Connection and Routing

Attach elbow to condensate trap

Cut formed end off

condensate drain

Formed end of elbow

grommet

Oonnect short end

of "Z" pipe to modified

drain e

Factory supplied 1/2-in. CPVC to

3/4-in. PVC adapter

TRAP, DRAIN ELBOW WITH DISCHARGE PIPE

Formed end of grommet

Open spring clamp. Insert

1/2-in. to 3/4-in. CPVC to

PVC adapter or 1/2-in.

CPVC pipe

Modified drain elbow connect to

condensate trap and "Z" pipe

LEFT SIDE DRAIN ROUTED BEHIND INDUCER

NOTE: Remove Inducer Housing for easier access, if desired.

Lt2F015

440 01 4201 03 specificationssubjectto change without notice. 17

Figure 16 Formed Rubber Drain Grommet

INSTALL CLAMPS ON DRAIN ELBOW

ATTACH DRAIN ELBOW TO CONDENSATE

DRAIN TRAP /,

PULL DRAIN STUB /

THROUGH CASING,

OPEN SPRING CLAMP

INSERT FACTORY-SUPPLIED 1/2-1N. CPVC

TO 3/4-1N. PVC ADAPTER OR 1/2-1N. CPVC PIPE

*CLAMP MAY BE LOCATED ON OUTSIDE OF DRAIN ELBOW

RIGHT SIDE DRAIN INSTALLATION L12F022

Figure 17 1Horizontal Drain Trap Grommet

Remove knockout.

Install grommet before

relocating condensate

trap.

Al1348

INSTALLATION

This furnace is certified to leak 2% or less of nominal air con-

ditioning CFM delivered when pressurized to 1-inch water

column (250 Pa) with all present air inlets (including bottom

closure in upflow and horizontal applications), air outlets, and

plumbing and electrical ports sealed.

UPFLOW INSTALLATION

NOTE: The furnace must be pitched as shown in Figure 18 for

proper condensate drainage.

Figure 18

LEVEL0-IN. (0 MM)TO

1/2-1N.(13 MM) MAX

Furnace Pitch Requirements

MIN 1/4-IN.(6 MM) TO

1/2-1N.(13 MM) MAX

FRONT

UPFLOW OR

DOWNFLOW HORIZONTAL Al1237

Supply Air Connections

For a furnace not equipped with a cooling coil, the outlet duct

shall be provided with a removable access panel. This opening

shall be accessible when the furnace is installed and shall be of

such a size that the heat exchanger can be viewed for possible

openings using light assistance or a probe can be inserted for

sampling the air stream. The cover attachment shall prevent

leaks.

Connect supply-air duct to flanges on furnace supply-air

outlet. Bend flange upward to 90 ° with wide duct pliers. (See

Figure 22) The supply-air duct must be connected to ONLY

the furnace supply-outlet-air duct flanges or air conditioning

coil casing (when used). DO NOT cut main furnace casing side

to attach supply air duct, humidifier, or other accessories. All

supply-side accessories MUST be connected to duct external

to furnace main casing.

Return Air Connections

FIRE HAZARD

A failure to follow this warning could cause personal injury,

death and/or property damage.

Never connect return-air ducts to the back of the furnace.

Follow instructions below.

The return-air duct must be connected to bottom, sides (left or

right), or a combination of bottom and side(s) of main furnace

casing. Bypass humidifier may be attached into unused return

air side of the furnace casing. (See Figure 27, Figure 28 and

Figure 29)

Bottom Return Air Inlet

These furnaces are shipped with bottom closure panel installed

in bottom return-air opening. Remove this panel when bottom

return air is used. This panel may be used as the bottom

closure of an accessory bottom return air box or discarded. To

remove bottom closure panel, perform the following:

1. Tilt or raise furnace and remove four (4) screws holding

bottom plate. (See Figure 19)

2. Remove bottom plate.

3. Remove bottom closure panel.

4. Reinstall bottom plate and screws.

18 Specificationssubjectto change without notice. 440 01 4201 03

Figure 19 _Removing Bottom Closure Panel

LJ"

,j, of

*, _ OM

"'- _ _I _ " CLOSURE

-- PANEL

BOTTOM

PLATE Ltl F004

Side Return Air Inlet

These furnaces are shipped with bottom closure panel installed

in bottom return-air opening. This panel MUST be in place

when only side return air is used.

NOTE: Side return-air openings can be used in UPFLOW and

most HORIZONTAL configurations. Do not use side return-air

openings in DOWNFLOW configuration. (See Figure27,

Figure 28 and Figure 29)

Leveling Legs (If Desired)

In upflow position with side return inlet(s), leveling legs may be

used. (See Figure 20) Install field-supplied, 5/16 x 1-1/2 in. (8

x 38 mm) (max) corrosion-resistant machine bolts, washers

and nuts.

Figure 20 _Leveling Legs

5/_

(Smm)

(44mm)

(8mrn)

5/16"

13/4"

(44mm)

(8mm)

A89014

(44mm) 1 3/4"

(44mm)1 3/4%_

NOTE: Bottom closure must be used when leveling legs are

used. It may be necessary to remove and reinstall bottom

closure panel to install leveling legs. To remove bottom closure

panel, see Step 1 in Bottom Return Air Inlet section.

To install leveling legs:

1. Position furnace on its back. Locate and drill a hole in

each bottom corner of furnace.

2. For each leg, install nut on bolt and then install bolt with

nut in hole. (Install flat washer if desired.)

3. Install another nut on other side of furnace base. (Install

flat washer if desired.)

4. Adjust outside nut to provide desired height, and tighten

inside nut to secure arrangement.

5. Reinstall bottom closure panel if removed.

DOWN FLOW INSTALLATION

NOTE: The furnace must be pitched as shown in Figure 18 for

proper condensate drainage.

Supply Air Connections

NOTE: For downflow applications, this furnace is approved for

use on combustible flooring when any one of the following two

accessories are used (see Specification sheets for list of

approved accessories):

• Special Base - NAHA01101SB

• Cased Coil Assembly- EAM4X, END4X, ENW4X

1. Determine application being installed from Table 5.

2. Construct hole in floor per Table 5 and Figure 21.

3. Construct plenum to dimensions specified in Table 5

and Figure 21.

4. Install as shown in Figure 23. If Coil Assembly Part is

used, install as shown in Figure 24.

Floor and Plenum Opening

Figure 21 Dimensions

A96283

NOTE: It is recommended that the perforated supply-air duct

flanges be completely removed from furnace when installing

the furnace on a factory-supplied cased coil. To remove the

supply-air duct flange, use wide duct pliers or hand seamers to

bend flange back and forth until it breaks off. Be careful of

sharp edges. (See Figure 22)

CUT HAZARD

Failure to follow this caution may result in personal injury.

Sheet metal parts may have sharp edges or burrs. Use care

and wear appropriate protective clothing, safety glasses and

g oves when hand ing parts, and servicing furnaces.

Connect supply-air duct to supply-air outlet on furnace. Bend

flange inward past 90° with wide duct pliers (See Table 1

Figure 22) The supply-air duct must be connected to ONLY

the furnace supply outlet or air conditioning coil casing (when

used). When installed on combustible material, supply-air duct

must be connected to ONLY the factory-approved accessory

subbase, or a factory-approved air conditioning coil casing. DO

NOT cut main furnace casing to attach supply side air duct,

440 01 4201 03 Specificationssubjectto change without notice. 19

humidifier, or other accessories. All supply-side accessories

MUST be connected to duct external to furnace casing.

Return Air Connections

FIRE HAZARD

A failure to follow this warning could cause personal injury,

death and/or property damage.

Never connect return-air ducts to the back of the furnace.

Fo ow instructions be ow.

The return-air duct must be connected to return-air opening

bottom inlet) as shown in Figure 27. DO NOT cut into casing

Figure 22 1Duct Flanges

UPFLOW

I ......

YES

sides (left or right). Bypass humidifier connections should be

made at ductwork or coil casing sides exterior to furnace. (See

Figure 27)

Bottom Return Air Inlet

These furnaces are shipped with bottom closure panel installed

in bottom return-air opening. Remove and discard this panel

when bottom return air is used in downflow applications. To

remove bottom closure panel, perform the following:

1. Tilt or raise furnace and remove four (4) screws holding

bottom plate panel. (See Figure 19)

2. Remove bottom plate.

3. Remove bottom closure panel.

4. Reinstall bottom plate and screws.

DOWNFLOW

)RATED

DUCT

FLANGE

YES

HORIZONTAL

r- ..... [2--2--

120°_ YES 120_ YES 12

MIN MIN MIN -_,_ Ll

NO NO

YES

A10493

Table 5

FURNACE

CASI NG WIDTH

IN. (mm)

Opening Dimensions -in. (mm)

APPLICATION PLENUM OPENING FLOOR OPENING

A B C D

Upflow Applications on Combustible or Noncombustible Flooring 16 21-5/8 16-5/8 22-1/4

(subbase not required) (406) (549) (422) (565)

Downflow Applications on Noncombustible Flooring 15-7/8 19 16-1/2 19-5/8

17-1/2 (subbase not required) (403) (483) (419) (498)

(445) 15-1/8 19 16-3/4 20-5/8

Downflow applications on combustible flooring (subbase required) (384) (483) (425) (600)

Downflow Applications on Combustible Flooring with Coil Assembly or coil 15-1/2 19 16-1/2 20

box (subbase not required) (394) (483) (419) (508)

Upflow Applications on Combustible or Noncombustible Flooring 19-1/2 21-5/8 20-1/8 22-1/4

(subbase not required) (495) (549) (511) (565)

Downflow Applications on Noncombustible Flooring 19-3/8 19 20 19-5/8

21 (subbase not required) (492) (483) (508) (498)

(533) Downflow applications on combustible flooring 18-5/8 19 20-1/4 20-5/8

(subbase required) (473) (483) (514) (600)

Downflow Applications on Combustible Flooring with Coil Assembly or coil 19 19 20 20

box (subbase not required) (483) (483) (508) (508)

Upflow Applications on Combustible or Noncombustible Flooring 23 21-1/8 23-5/8 22-1/4

(subbase not required) (584) (537) (600) (565)

Downflow Applications on Noncombustible Flooring 22-7/8 19 23-1/2 19-5/8

24-1/2 (subbase not required) (581) (483) (597) (498)

(622) Downflow applications on Combustible flooring 22-1/8 19 23-3/4 20-5/8

(subbase required) (562) (483) (603) (600)

Downflow Applications on Combustible Flooring with Coil Assembly or 22-1/2 19 23-1/2 20

coil box (subbase not required) (572) (483) (597) (508)

20 Specifications subject to change without notice. 440 01 4201 03

Figure 23 I Furnace, Plenum, and Subbase

Installed on a Combustible Floor

FURNACE

(OR COIL CASING

WHEN USED)

COMBUSTIBLE --\

FLOORING

SUBBASE

SHEET METAL

PLENUM

-- FLOOR

OPENING

A96285

HORIZONTAL INSTALLATION

NOTE: The furnace must be pitched forward as shown in

Figure 18 for proper condensate drainage.

FIRE, EXPLOSION, AND CARBON MONOXIDE POISONING

HAZARD

Failure to follow this warning could result in personal injury,

death, or property damage.

Do not install the furnace on its back or hang furnace with

control compartment facing downward. Safety control

operation will be adversely affected. Never connect return-air

ducts to the back of the furnace.

MINOR PROPERTY HAZARD

Failure to follow this caution may result in minor property

damage.

Local codes may require a drain pan under entire furnace and

condensate trap when a condensing furnace is used in an attic

application or over a finished ceiling.

The furnace can be installed horizontally in an attic or

crawlspace on either the left-hand (LH) or right-hand (RH)

side. The furnace can be hung from floor joists, rafters or

trusses or installed on a non-combustible platform, blocks,

bricks or pad.

Figure 24 Furnace, Plenum, and Coil

Assembly on a Combustible Floor

FURNACE

END4X, ENW4X

COIL ASSEMBLY

COMBUSTIBLE --_

FLOORING

SHEET METAL

PLENUM "--".

FLOOR

OPENING

Ltl F104

FIRE, EXPLOSION, AND CARBON MONOXIDE POISONING

HAZARD

Failure to follow this warning could result in personal injury,

death, or property damage.

Do not install the furnace on its back or hang furnace with

control compartment facing downward. Safety control

operation will be adversely affected. Never connect return-air

ducts to the back of the furnace.

Suspended Furnace Support

The furnace may be supported under the entire length of the

furnace with threaded rod and angle iron. (See Figure 25)

Secure angle iron to bottom of furnace as shown.

Platform Furnace Support

Construct working platform at location where all required

furnace clearances are met. (See Table 1 and Figure 26) For

furnaces with 1-in. (25 mm) clearance requirement on side, set

furnace on non-combustible blocks, bricks or angle iron. For

crawlspace installations, if the furnace is not suspended from

the floor joists, the ground underneath furnace must be level

and the furnace set on blocks or bricks.

440 01 4201 03 Specifications subject to change without notice. 21

Figure 25 ISuspended Furnace Installation

-- COMBUSTION g AiR PIPE

(SEE VENTING SECTION)

7ENT

ROD

ND ANGLE

iRON OUT FOR

COIL SUPPORT

ROD LOCATION l

USING DIMPLE /

LOCATORS

HEX NUT

& WASHER (4)

REQD. PER ROD

DRAIN

NOTES: 1. A 1 In. (25mm) clearance minimum between

top of furnace and combustible material

2. The entire length of furnace must be

suppoded when furnace is used in hodzontam

position to ensure proper drainage.

3. Furnace shown is a direct vent application.

Refer to the Venting section for allowable vent

configurations. A11155

NOTE: Local codes may require a drain pan and condensate trap when a condensing furnace is installed over a finished

ceiling

Figure 26 IWorking Platform for Attic Installation

COMBUSTION -AIR PIPE VENT

(SEE VENTING SECTION)

(305 ram) MIN HORIZONTAL PIPE

SECTION IS RECOMMENDED WITH A

SHORT (5 TO 8 FT /1,5 TO 2,4 M) VENT

SYSTEM TO REDUCE EXCESSIVE

CONDENSATE DROPLETS FROM

EXITING THE VENT PIPE,

30" (762 mrn)

Min Work Area

MANUAL

SHUTOFF

GAS VALVE

INDOOR

COIL

ROLLOUT PROTECTION RE-

QUIRED Install 1.2" x 22" (305 x 559

mm) sheet metal in front of burner

compartment area.

SEDI[

TRAP

CONDENSATE

TRAP

NOTE: FURNACE SHOWN AS DIRECT VENT APPLICATION. REFER TO THE

VENTING SECTION FOR ALLOWABLE VENT CONFIGURATIONS A11154

NOTE: Local codes may require a drain pan and condensate trap when a condensing furnace is installed over a finished

ceiling

22 Specifications subject to change without notice. 440 01 4201 03

Roll-Out Protection

Provide a minimum 12-in. x 22-in. (305 x 559 mm) piece of

sheet metal for flame roll-out protection in front of burner area

for furnaces closer than 12-in. (305 mm) above the

combustible deck or suspended furnaces closer than 12-in.

(305mm) to joists. The sheet metal MUST extend underneath

the furnace casing by 1-in. (25mm) with the door removed.

The bottom closure panel may be used for flame roll-out

protection when bottom of furnace is used for return air

connection. See Figure 26 for proper orientation of roll-out

shield.

Supply Air Connections

For a furnace not equipped with a cooling coil, the outlet duct

shall be provided with a removable access panel. This opening

shall be accessible when the furnace is installed and shall be of

such a size that the heat exchanger can be viewed for possible

openings using light assistance or a probe can be inserted for

sampling the air stream. The cover attachment shall prevent

leaks.

Connect supply-air duct to flanges on furnace supply-air

outlet. Bend flange upward to 90 ° with wide duct pliers. (See

Figure 22) The supply-air duct must be connected to ONLY

the furnace supply-outlet-air duct flanges or air conditioning

coil casing (when used). DO NOT cut main furnace casing side

to attach supply air duct, humidifier, or other accessories. All

supply-side accessories MUST be connected to duct external

to furnace main casing.

Return Air Connections

The return-air duct may be connected to bottom of the furnace.

The side of casing that faces downward may also be used for

return air connection. A combination of the bottom and

downward facing side may also be used. The upward facing

side of the casing cannot be used as a return air connection.

(See Figure 29)

Bottom Return Air Inlet

These furnaces are shipped with bottom closure panel installed

in bottom return-air opening. Remove this panel when bottom

return air is used. This panel may be used for rollout protection

or discarded. To remove bottom closure panel, perform the

following:

1. Tilt or raise furnace and remove four (4) screws holding

bottom plate. (See Figure 19)

2. Remove bottom plate.

3. Remove bottom closure panel.

4. Reinstall bottom plate and screws.

Side Return Air Inlet

These furnaces are shipped with bottom closure panel installed

in bottom return-air opening. This panel MUST be in place

when side return air inlet(s) are used without a bottom return air

inlet.

Not all horizontal furnaces are approved for side return air

connections (See Figure 29)

Filter Arrangement

FIRE, CARBON MONOXIDE AND POISONING HAZARD

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

death.

Never operate a furnace without a filter or filtration device

installed. Never operate a furnace with filter or filtration device

access doors removed.

Furnaces shipped without a filter rack:

There are no provisions for an internal filter in these furnaces.

An external filter rack is required and is purchased separately.

A field supplied accessory air cleaner may also be used in

place of the filter rack.

For upflow applications, the filter can be installed on either side

of the furnace, the bottom of the furnace or any combination of

side and bottom of the furnace. (See Figure 28, Figure 30, and

Figure 31)

For downftow applications, the filter rack (or field supplied

accessory air cleaner) must only be connected to the bottom

opening on the furnace (See Figure 27 and Figure 31 and

Table 9).

For horizontal applications, the filter rack (or field supplied

accessory air cleaner) can be connected to the bottom opening

on the furnace. For side return use in the horizontal position,

refer to Figure 29. If both side and bottom openings are used in

Figure 29, each opening used will require a filter.

A filter rack or any field supplied accessory air cleaner can also

be installed in the common return duct prior to entering the

return air opening in any orientation.

See Table 6 for recommended filter size details.

Table 6 Filter Size Information - inch (mm)

FILTER SIZE

BOTTOM

RETURN

FURNACE

CASING

WIDTH

FILTER

TYPE

SIDE RETURN

17-1/2 16 x 25 x 3/4 16 x 25 x 3/4 Washable*

(445) (406 x 635 x 19) (406 x 635 x 19)

16 x 25 x 3/4 20 x 25 x 3/4 Washable*

21 (533) (406 x 635 x 19) (508 x 635 x 19)

24-1/2 16 x 25 x 3/4 24 x 25 x 3/4 Washable*

(622) (406 x 635 x 19) (610 x 635 x 19)

Recommended to maintain air filter face velocity. See Product Data for part

number.

Refer to the instructions supplied with the Filter Rack or

accessory air filter for additional assembly and installation

options.

Filter and Return Duct Sizing

Pressure drop must be taken into account when sizing filters,

filter racks, IAQ devices, and associated system ductwork. See

Table7 for a comparison of Pressure Drop (initial/clean

resistance to airflow) versus Airflow for a variety of filter media

types and sizes. These are representative numbers. Consult

the filter or IAQ device manufacturers' specification sheet for

performance data for a particular filter media or IAQ device.

Design the filter and associated ductwork for the best match of

pressure drop versus filter size. Best practice usually chooses filter

systems with pressure drops under 0.2 in. w.c. (50 Pa), with the

best blower electrical efficiency and system airflow performance

occurring with filter pressure drops under 0.1 in. w.c. (25 Pa).

Due to the relatively high pressure drops of 1-in (25 mm) thick

after-market filter media, it is recommended that the filtration

system be designed for at least 2-in (51 mm) thick media.

TIPS FROM CONTRACTORS: Install a media cabinet capable

of incorporating a 4-in (102 mm) thick media filter. This allows

room for future upgrades to other IAQ devices.

Design the duct system FIRST to determine how much pres-

sure drop may be allowed in the filter system. See the AIR

DUCTS section. Excessive filter pressure drop often com-

promises system airflow and duct performance, causes inad-

equate airflow to the furthest ends of the duct system, as well

as causes excess noise and higher than anticipated electrical

consumption.

Provide duct transitions, as required, to smoothly transition airflow

from the return duct system to the filter (or IAQ device) to the

furnace when the dimensions of the ductwork or furnace return air

opening do not match the required filter or IAQ device dimensions.

See the instructions supplied with factory-accessory duct

adapters.

440 01 4201 03 Specifications subject to change without notice. 23

Table 7 Filter Media Pressure Drop (Clean) Versus Airflow -in. w.c. (Pa)

14 x 25 Filter

OFM L/s

600 (283)

800 (378)

1000 (472)

1200 (566)

Factory-Accy

Washable

(1-in./2.5 cm)

0.04 (12)

0.06 (15)

0.07 (18)

0.08 (20)

Representative After-Market Filter Media*

Fiberglass*

(1-in./2.5 cm) (2-in./5 cm)

0.07 (17) 0.10 (26)

O.10 (25) O.15 (39)

0.13 (34) 0.21 (52)

O.17 (43) 0.27 (68)

Pleated*

(1-in./2.5 cm) (2-in.

0.24 (60) O.16

0.34 (85) 0.23

0.32

/5 cm)

(40)

(59)

(81)

16x 25 Filter

CFM L/s

600 (283)

800 (378)

1000 (472)

1200 (566)

1400 (661)

1600 (755)

1800 (850)

Factory-Accy

Washable

(1-in./2.5 cm)

0.04 (1 O)

0.05 (13)

0.06 (16)

0.07 (18)

0.08 (21)

0.09 (23)

O.10 (25)

Representative After-Market Filter Media*

Fiberglass* Pleated*

(2-in.

0.13

0.20

0.27

(1-in. /2.5 cm) (2-in. /5 cm) (1-in. /2.5 cm) /5 cm)

0.06 (15) 0.09 (22) 0.20 (51) (34)

0.08 (21) O.13 (32) 0.29 (72) (49)

0.11 (28) 0.17 (43) (67)

O.14 (36) 0.22 (56)

O.18 (45) 0.28 (70)

0.21 (54)

0.26 (64)

20 x25 Filter

CFM (L/s)

800 (378)

1000 (472)

1200 (566)

1400 (661)

1600 (755)

1800 (850)

2000 (944)

2200 (1038)

Factory-Accy

Washable

(1-in./2.5 cm) (1-in./2.5 cm) (2-in./5 cm) (1-in./2.5 cm) /5 cm)

0.04 (11) 0.06 (16) 0.09 (24) 0.22 (55) (37)

0.05 (13) 0.08 (21) 0.13 (32) 0.29 (72) (49)

0.06 (15) 0.11 (27) 0.16 (41) (63)

0.07 (17) 0.13 (33) 0.20 (51) (79)

0.08 (19) O.16 (40) 0.24 (61)

0.08 (21) O.18 (47) 0.29 (73)

0.09 (23) 0.21 (54)

0.09 (24) 0.25 (62)

Representative After-Market Filter Media*

Fiberglass* Pleated*

(2-in.

0.15

0.20

0.25

0.31

25 x25 Filter

CFM L/s

800 (378)

1000 (472)

1200 (566)

1400 (661)

1600 (755)

1800 (850)

2000 (944)

2200 (1038)

Factory-Accy

Washable

(1-in./2.5 cm) (1-in./2.5 cm) (2-in./5 cm) (1-in./2.5 cm) /5 cm)

0.03 (9) 0.05 (12) 0.07 (18) O.17 (43) (28)

0.04 (11) 0.06 (16) 0.09 (24) 0.22 (55) (37)

0.05 (13) 0.08 (20) 0.12 (31) 0.27 (68) (47)

0.06 (15) 0.10 (24) 0.15 (38) (58)

0.06 (16) O.11 (29) O.18 (45) (69)

0.07 (18) O.13 (34) 0.21 (53)

0.08 (19) 0.16 (39) 0.24 (61)

0.08 (21) O.18 (45) 0.28 (70)

Representative After-Market Filter Media*

Fiberglass* Pleated*

(2-in.

0.11

0.15

0.18

0.23

0.28

* Representative estimates from filter manufacturer data sheets.

See manufacturers' specifications for pressure drop versus airflow data for specific filter media.

If the filter size that you are looking for is not contained in Table 7, refer to Table 8 for a comparison of Pressure Drop (initial/clean

resistance to airflow) versus Face Velocity for a variety of filter media types.

The following equations relate Face Velocity (FPM), Filter Area and Airflow (CFM):

Filter Face Velocity = Airflow /Filter Area

Minimum Filter Area = Rated System Airflow /Maximum Filter Face Velocity

Table 8

Face

Filter Media Pressure Drop (Clean) Versus Velocity - in. w.c. (Pa)

Velocity Factory-Accy Representative After-Market Filter Media*

FPM (m/s)

200 (I)

300 (1.5)

400 (2)

500 (2.5)

600 (3)

700 (3.6)

Washable

(1-in. /2.5 cm)

0.04 (10)

0.05 (14)

0.07 (17)

0.08 (21)

0.09 (23)

0.10 (26)

Fiberglass*

(1-in. /2.5 cm)

0.05 (13)

0.09 (22)

0.13 (32)

0.18 (44)

0.23

0.29

(2-in. /5cm)

0.08 (20)

0.13 (34)

0.20 (50)

0.27 (69)

Pleated*

(1-in. /2.5 cm)

0.18 (47)

0.30 (75)

(2-in. /5cm)

0.12 (31)

0.21 (52)

0.31 (78)

* Representative estimates from filter manufacturer data sheets.

See manufacturers' specifications for pressure drop versus airflow data for specific filter media.

24 Specifications subject to change without notice. 440 01 4201 03

Figure 27 JDownflow Return AirConfigurations and Restrictions

/ (17 RETURN

AIR

......................._////i ......................... SIDE RETURN

NOT PERMI]qED

FOR ANY MODEL

SIDE RETURN

NOT PERMITTED

FOR ANY MODEL

i s_LY L,OFO33

Upflow Return Air Configurations

Figure 28 and Restrictions

SUPPLY _"

............._iR//L ....................

RETURN

AIR

® ®

RETURN

AIR

RETURN I UPFLOW

AIR C!) RETURN AIR

RESTRICTIONS L10F032

IHorizontal Return Air

Figure 29 Configurations and Restrictions

HORIZONTAL TOP

RETURN NOT

PERMITTED FOR

ANY MODEL

RETURN

AIR

)

SUPPLY

AIR

*NOTE:RESTRICTION SAME FOR HORIZONAL

HORIZONAL LEFT RETURN AIR

RESTRICTIONS

RETURN

AIR

SIDE RETURN AIR NOT PERMITTED FOR 2000 CFM AND ABOVE OF AIR

FLOW L10F034

External Filter Cabinet Configurations

Figure 30 ]Accessory Side Filter Rack

_1..=_ _" ½"

1 //(1 cm)(1.3

I.,=_(3 cm)

-'1 | tTYP/// TABS !

i........................ i ' !

r_ ,,q

t r_ (3 16 }

cm) I

I II= 23 _" _

17 _'! (59 cm)

(43.5 cm)

IL OPENING

L10F027

23A,,

/ (6_m)

L12F023

440 01 4201 03 Specifications subject to change without notice. 25

Figure 31 Accessory Bottom Filter Rack

Iom 0

® @

@ @

L10F031

22-5/t 6

(566.4)

28-7/16

(722.2)

2-3/t 6 -,,=_=.

(55.5)

Table 9 Dimensional Drawing -inch (mm)

FURNACE

KIT NO. A B

WIDTH

NAHB00601 FF 17-1/2 14-5/8 17-5/8

(444.5) (371.5) (447.7)

21 18-1/8 21-1/8

NAHB00701FF (533.4) (460.4) (536.6)

NAH B00801FF 24-1/2 21-5/8 24-5/8

(622.3) (549.3) (625.5)

Air Ducts

Many states, provinces and localities are considering or have

implemented standards and/or restrictions on duct sizing

practices, ductwork leakage, and/or ductwork thermal, airflow

and electrical efficiencies. CONSULT LOCAL CODE OFFI-

CIALS for ductwork design and performance requirements in

your area.

General Requirements

The duct system should be designed and sized according to

accepted national standards such as those published by: Air

Conditioning Contractors Association (ACCA Manual D), Sheet

Metal and Air Conditioning Contractors National Association

(SMACNA) or American Society of Heating, Refrigerating and

Air Conditioning Engineers (ASHRAE) or consult The Air

Systems Design Guidelines reference tables available from

your local distributor. The duct system should be sized to

handle the required system design CFM at the design external

static pressure. The furnace airflow rates are provided in the

Service and Technical Manual, Air Delivery-CFM (with filter).

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

circulated by the furnace to areas outside the space containing

the furnace, the return air shall also be handled by duct(s)

sealed to the furnace casing and terminating outside the space

containing the furnace.

Secure ductwork with proper fasteners for type of ductwork

used. Seal supply- and return-duct connections to furnace

with code approved tape or duct sealer.

NOTE: Flexible connections should be used between ductwork

and furnace to prevent transmission of vibration.

Ductwork passing through unconditioned space should be

insulated to enhance system performance. When air

conditioning is used, a vapor barrier is recommended.

Maintain a 1-in. (25 mm) clearance from combustible materials

to supply air ductwork for a distance of 36-in. (914 mm)

horizontally from the furnace. See NFPA 90B or local code for

further requirements.

Return Duct Sizing

Refer to the Filter Selection and Duct Sizing section for

information on the proper selection of filter sizes and the

associated ductwork and duct transitions. Improperly designed

filtering systems and return ductwork are the most common

causes of airflow and/or noise complaints in HVAC systems.

Ductwork Acoustical Treatment

NOTE: Metal duct systems that do not have a 90 degree elbow

and 10 ft. (3 M) of main duct to the first branch take-off may

require internal acoustical lining. As an alternative, fibrous

ductwork may be used if constructed and installed in

accordance with the latest edition of SMACNA construction

standard on fibrous glass ducts. Both acoustical lining and

fibrous ductwork shall comply with NFPA 90B as tested by UL

Standard 181 for Class 1 Rigid air ducts.

NOTE: For horizontal applications, the top most flange may be

bent past 90 ° to allow the evaporator coil to hang on the

flange temporarily while the remaining attachment and sealing

of the coil are performed.

26 Specifications subject to change without notice. 440 01 4201 03

GAS PIPING

FIRE OR EXPLOSION HAZARD

Failure to follow this warning could result in personal injury,

death, and/or property damage.

Never purge a gas line into a combustion chamber. 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 may result

causing property damage, personal injury or loss of life.

FIRE OR EXPLOSION HAZARD

Failure to follow this warning could result in personal injury,

death, and/or property damage.

Use proper length of pipe to avoid stress on gas control man-

ifold and a gas leak.

FIRE OR EXPLOSION HAZARD

Failure to follow this warning could result in personal injury,

death, and/or property damage.

Gas valve inlet and/or inlet pipe must remain capped until

gas supply line is permanently installed to protect the valve

from moisture and debris. Also, install a sediment trap in the

gas supply piping at the inlet to the gas valve.

Gas piping must be installed in accordance with national and

local codes. Refer to current edition of NFGC in the U.S.A.

Refer to current edition of CAN/CSA B149.1 in Canada.

Installations must be made in accordance with all authorities

having jurisdiction. If possible, the gas supply line should be a

separate line running directly from meter to furnace.

NOTE: Use a back-up wrench on the inlet of the gas valve

when connecting the gas line to the gas valve.

IN THE STATE OF MASSACHUSETTS:

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

censed plumber or gas fitter.

2. When flexible connectors are used, the maximum

length shall not exceed 36-in. (915 mm).

3. When lever handle type manual equipment shutoff

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

4. The use of copper tubing for gas piping is NOT ap-

proved by the state of Massachusetts.

Refer to Table 10 for recommended gas pipe sizing. Risers

must be used to connect to furnace and to meter. Support all

gas piping with appropriate straps, hangers, etc. Use a

minimum of one hanger every 6 ft. (1.8 M). Joint compound

(pipe dope) should be applied sparingly and only to male

threads of joints. Pipe dope must be resistant to the action of

propane gas.

FIRE OR EXPLOSION HAZARD

A failure to follow this warning could result in personal injury,

death, and/or property damage.

If local codes allow the use of a flexible gas appliance connect-

or, always use a new listed connector. Do not use a connector

which has previously served another gas appliance. Black iron

pipe shall be installed at the furnace gas control valve and ex-

tend a minimum of 2-in. (51 mm) outside the furnace.

FURNACE DAMAGE HAZARD

Failure to follow this caution may result in furnace damage.

Connect gas pipe to furnace using a backup wrench to avoid

damaging gas controls and burner misalignment.

Table 10

NOMINAL

IRONPIPE

SIZE

IN.(aM)

Maximum Capacity of Pipe

1/2(13)

3/4 (19)

1 (25) 285

1-1/4(32) 580

1-1/2(39) 900

INTERNAL

DIA.

IN.(aM)

0,622

(158)

0,824 (20,9)

1,049 (26,6)

1.380(35.0)

1.610(40.9)

LENGTH OF PIPE -FT (M)

10 20 30 40

(3.0) (6.0) (9.1) (12.1)

175 120 97 82

360 250 200 170

680 465 375 320

1400 950 770 660

2100 1460 1180 990

(15.2)

151

* Cubic ft of gas per hrfor gas pressures of 0.5 psig (14-in. W.C.) or less and

a pressure drop of 0.5-in. W.C. (based on a 0.60 specific gravity gas). Ref: Table 10

above, and 6.2 of NFPA54/ANSI Z223.1-2009.

An accessible manual equipment shutoff valve MUST be

installed external to furnace casing and within 6 ft. (1.8 M) of

furnace.

Install a sediment trap in riser leading to furnace as shown in

Figure 32. Connect a capped nipple into lower end of tee.

Capped nipple should extend below level of furnace gas

controls. Place a ground joint union between furnace gas

control valve and exterior manual equipment gas shutoff valve.

Figure 32

MANUAL _U_

SHUT OFF

VALVE _ "_

(REQUIRED_

SEDIMEN/_T UNION "_'v

TRAP

ITypical Gas Pipe Arrangement

NOTE: " Union maybe inside the

vestibule where permitted by

local codes".

LIOF030

A 1/8-in. (3 mm) NPT plugged tapping, accessible for test

gauge connection, MUST be installed immediately upstream of

gas supply connection to furnace and downstream of manual

equipment shutoff valve.

440 01 4201 03 Specifications subject to change without notice. 27

Pipingshouldbepressureandleaktestedinaccordancewith

thecurrentadditionoftheNFGOintheUnitedStates,local,

andnationalplumbingandgascodesbeforethefurnacehas

beenconnected.Referto currenteditionof NSONGPIOin

Canada.Afterall connectionshavebeenmade,purgelines

andcheckforleakageatfurnacepriortooperatingfurnace.

NOTE:Thefurnacegascontrolvalveinletpressuretap

connectionis suitableto useas test gaugeconnection

providingtestpressureDOESNOTexceedmaximum0.5psig

(14-in.w.c.)statedongascontrolvalve.(SeeFigure33)

Redundant Automatic Control

Figure 33 Valve (Modulating)

MODULATING

eN/OFF Switch

Pressure Tap

A10496

If pressure exceeds 0.5 psig (14-in. w.c.), gas supply pipe must

be disconnected from furnace and capped before and during

supply pipe pressure test. If test pressure is equal to or less

than 0.5 psig (14-in. w.c.), turn off electric shutoff switch

located on furnace gas control valve and accessible manual

equipment shutoff valve before and during supply pipe

pressure test. After all connections have been made, purge

lines and check for leakage at furnace prior to operating

furnace.

The gas supply pressure shall be within the maximum and

minimum inlet supply pressures marked on the rating plate with

the furnace burners ON and OFF.

Some installations require gas entry on right side of furnace (as

viewed in upflow). (See Figure 34)

Gas Pipe Grommet

For direct vent (2-pipe) applications, the knockout for the gas

pipe must be sealed to prevent air leakage. Remove the

knockout, install the grommet in the knockout, then insert the

gas pipe. The grommet is included in the loose parts bag. (See

Figure 34)

Figure 34 ]Gas Entry

Left SideGas Entry. Gas Pipe

GrommetRequired For Direct Gas Pipe Grommet Requirec

Vent Applications. For DirectVent Applications

All 338

ELECTRICAL CONNECTIONS

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury or

death.

Blower door switch opens 115-v power to control. No

component operation can occur. Do not bypass or close switch

with blower door removed.

See Figure 35 for field wiring diagram showing typical field

115-v wiring. Check all factory and field electrical connections

for tightness.

Field-supplied wiring shall conform with the limitations of 63°F

(33°0) rise.

ELECTRICAL SHOCK AND FIRE HAZARD

Failure to follow this warning could result in personal injury,

death, or property damage.

The cabinet MUST have an uninterrupted or unbroken ground

according to NEO ANSl/NFPA 70-2011 or local codes to

minimize personal injury if an electrical fault should occur. In

Canada, refer to Canadian Electrical Code OSA O22.1. This

may consist of electrical wire, conduit approved for electrical

ground or a listed, grounded power cord (where permitted by

local code) when installed in accordance with existing electrical

codes. Refer to the power cord manufacturer's ratings for

proper wire gauge.

Do not use gas piping as an electrical ground.

FURNACE MAY NOT OPERATE HAZARD

Failure to follow this caution may result in intermittent furnace

operation.

Furnace control must be grounded for proper operation or

else control will lock out. Control must remain grounded

through green/yellow wire routed to gas valve and manifold

bracket screw.

115-V Wiring

Furnace must have a 115-v power supply properly connected

and grounded.

NOTE: Proper polarity must be maintained for 115-v wiring.

Control status indicator light flashes code 10 and furnace does

28 Specifications subject to change without notice. 440 01 4201 03

not operate if polarity is incorrect or if the furnace is not

grounded.

Verify that the voltage, frequency, and phase correspond to that

specified on unit rating plate. Also, check to be sure that

service provided by utility is sufficient to handle load imposed

by this equipment. Refer to rating plate or Table11 for

equipment electrical specifications.

U,S,A, Installations: Make all electrical connections in

accordance with National Electrical Code (NEC) ANSI/NFPA 70

and any local codes or ordinances that might apply.

Canadian Installations: Make all electrical connections in

accordance with the current edition of the Canadian Electrical

Code CSA C22.1 and any local codes or ordinances that might

apply.

Use a separate, fused branch electrical circuit with a properly

sized fuse or circuit breaker for this furnace. See Table 11 for

wire size and fuse specifications. A readily accessible means of

electrical disconnect must be located within sight of the

furnace.

J-Box Installation

FIRE OR ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury,

death, or property damage.

If field-supplied manual disconnect switch is to be mounted on

furnace casing side, select a location where a drill or fastener

cannot damage electrical or gas components.

FIRE HAZARD

Failure to follow this warning could result in personal injury,

death, or property damage.

Do not connect aluminum wire between disconnect switch

and furnace. Use only copper wire.

SWITCH

Figure 35

115-VOLTFIELD-

SUPPLIED

FUSED

DISCONNECT

Al1146

The J-Box is used when field line voltage electrical connections

are made to the furnace wiring harness inside the furnace

casing. The J-Box is not required if a field-supplied electrical

box is attached to the outside of the furnace casing and the box

is grounded to the green ground wire of the main wiring

harness and the earth ground of the field electrical supply.

The J-Box cover, mounting bracket and screws are shipped in

the loose parts bag included with the furnace. The J-Box can

be mounted on the left or right side of the casing, as viewed

from the upfiow position. (See Figure 36)

IHeating and Cooling Application Wiring Diagram with Single-Stage Thermostat

NOTE 2

FIVE_ (_ (_) (_)

WIRE

BLOWER THREEWiRE

DOOR

SWITCH _ ONLY

JUNCTION R @

BOX O

24-VOLT

TERMINAL

BLOCK

FURNACE

I I I I

I I I I I

I iiiii/iiii!iiiiiiiii

I I I I I

L__I I I I

rl I I I

I I I I |

-- II I i I

"_ ..... I I I

NOTE1 _-J-1

I I I I_

I I

J I L._____

.... FIELD 24-VOLT WIRING

.... FIELD 115-, 208/230-, 460-VOLT WIRING

-- FACTORY 24-VOLT WIRING

FACTORY 115-VOLT WIRING

1-STAGE

THERMOSTAT FIELD-SUPPLIED

TERMINALS FUSEDDISCONNECT

D-4_

208/230- OR

_60-VOLT

PHASE

==_===1208/230-

== .J_FT-Tt,=,_== = _VOLT

I"_ - -I f'SINGLE

CONDENSING

UNiT

NOTES: 1. Connect Y/Y2-terminal as shown for proper operation.

2. Some thermostats require a "C" terminal connection as shown.

3. If any of the original wire, as supplied, must be replaced, use

same type or equivalent wire,

Al1401

440 01 4201 03 Specifications subject to change without notice. 29

Figure 36 Optional J-Box Locations

OPTIONAL

J-BOX

__CATIONS

Representative drawing only, some models may vary in appearance.

L12F024

Remove the J-Box cover and mounting bracket from the loose

parts bag. Select a 7/8-in. (22 mm) knock-out on the desired

side of the casing. Remove the knock-out from the casing. Drill

two 1/8-in. (3 mm) pilot holes in the casing dimples by the

desired 7/8-in. (22 mm) knock-out.

Align the J-Box mounting bracket against the inside of the

casing and secure the mounting bracket with the screws. (See

Figure 37)

Electrical Box on Furnace Casing Side

NOTE: Check that duct on side of furnace will not interfere with

installed electrical box.

Figure 37

J-BOX

MOUNTING

SCREWS

1. Fasten a field-supplied external electrical box to the

outside of the casing by driving two field-supplied

screws from inside electrical box into casing. (See

Figure 38)

2. Route field power wiring into external electrical box.

3. Pull furnace power wires through 1/2-in. (12 mm)

diameter hole in J-Box. If necessary, loosen power

wires from strain-relief wire-tie on furnace wiring

harness.

4. Connect any code required external disconnect(s) to

field power wiring.

J-Box Bracket Installation

J-BOX __.

MOUNTING \\

BRACKET

\..

"\\

L12F025

5. Route external field power wires through holes in

electrical box and casing.

6. Connect field ground wire and factory ground wire to

green ground screw on J-Box mounting bracket as

shown in Figure 37.

7. Connect field power and neutral leads to furnace power

leads, as shown in Figure 35.

8. Attach furnace J-Box cover to mounting bracket with

screws supplied in loose parts bag. Do not pinch wires

between cover and bracket.

9. Complete external disconnect wiring and installation.

Connect line voltage leads as shown in Figure 38. Use

best practices (NEC) ANSl/NFPA 70 in U.S. for wire

bushings, strain relief, etc., and Canadian Electrical

Code CSA O22.1.

IField-Supplied Electrical Box on

Figure 38 Furnace Casing

GROUNU

NEUTRAb

A10141

Power Cord Installation in Furnace J-Box

NOTE: Power cords must be able to handle the electrical

requirements listed in Table 11. Refer to power cord

manufacturer's listings.

1. Install J-Box mounting bracket to inside of furnace

casing. (See Figure 37)

2. Route listed power cord through 7/8-in. (22 mm)

diameter hole in casing and J-Box bracket.

3. Secure power cord to J-Box bracket with a strain relief

bushing or a connector approved for the type of cord

used.

4. Pull furnace power wires through 1/2-in. (12 mm)

diameter hole in J-Box. If necessary, loosen power wires

from strain--relief wire-tie on furnace wiring harness.

5. Connect field ground wire and factory ground wire to

green ground screw on J-Box mounting bracket as

shown in Figure 37.

6. Connect power cord power and neutral leads to furnace

power leads as shown in Figure 35.

7. Attach furnace J-Box cover to mounting bracket with

screws supplied in loose parts bag. Do not pinch wires

between cover and bracket.

BX Cable Installation in Furnace J-Box

1. Install J-Box mounting bracket to inside of furnace

casing.

30 Specifications subject to change without notice. 440 01 4201 03

2. Route BX connector through 7/8-in. (22 mm) diameter

hole in casing and J-Box bracket.

3. Secure BX cable to J-Box bracket with connectors

approved for the type of cable used.

4. Connect field ground wire and factory ground wire to

green ground screw on J-Box mounting bracket as

shown in Figure 37.

5. Connect field power and neutral leads to furnace power

leads, as shown in Figure 35.

6. Attach furnace J-Box cover to mounting bracket with

screws supplied in loose parts bag. Do not pinch wires

between cover and bracket.

24-V Wiring

Make field 24-v connections at the 24-v terminal strip. (See

Figure 40) Connect terminal Y/Y2 as shown in Figure 35 for

proper cooling operation. Use only AWG No. 18, color-coded,

copper thermostat wire.

NOTE: Use AWG No. 18 color-coded copper thermostat wire

for lengths up to 100 ft. (30.5 M). For wire lengths over 100 ft.,

use AWG No. 16 wire.

The 24-v circuit contains an automotive-type, 3-amp. fuse

located on the control. Any direct shorts during installation,

service, or maintenance could cause this fuse to blow. If fuse

replacement is required, use ONLY a 3-amp. fuse of identical

size. (See Figure 39 and Figure 40)

See the Service and Technical Support manual for detailed

instructions on control wiring and setup.

Thermostats and Control Settings

For best results, use a communicating wall control to control

this modulating furnace. A single stage or two-stage heating

and cooling thermostat can be used with the furnace. The

furnace control board CPU will control the furnace and outdoor

unit staging. A two stage heating and cooling thermostat can

also be used to control the staging. However, full modulating

capability will not be available when the furnace staging is

controlled by the thermostat. Furnace staging will be limited to

Minimum and Maximum inputs or Intermediate and Maximum

inputs depending on the configuration of set-up switches

SWl-2 and SW4-2. Refer to typical thermostat wiring diagrams

and the Sequence of Operation section for additional details.

Consult the thermostat installation instructions for specific

information about configuring the thermostat.

Accessories (See Figure 39 and Figure 40)

1. Electronic Air Cleaner (EAC)

Connect an accessory Electronic Air Cleaner (if used)

using 1/4-in female quick connect terminals to the two

male 1/4-in quick-connect terminals on the control

board marked EAC-1 and EAC-2. The terminals are

rated for 115VAC, 1.0 amps maximum and are

energized during blower motor operation.

2. Humidifier (HUM)

The HUM terminal is a 24 VAC output, energized

when the blower is operating during a call for heat.

Connect an accessory 24 VAC, 0.5 amp. Maximum (if

used) to the 1/4-in mate quick-connect HUM terminal

and COM-24V screw terminal on the control board

thermostat strip.

NOTE: If the humidifier has its own 24 VAC power supply, an

isolation relay may be required. Connect the 24 VAC coil of the

isolation relay to the HUM and COM/24V screw terminal on the

control board thermostat strip. (See Figure 40)

3. Communication Connector

This connection is used when the furnace is

controlled by an optional communicating wall control

instead of a standard thermostat. The communication

plug is supplied with the communicating wall control.

Refer to the instructions supplied with the

communicating wall control for complete details.

4. Outside Air Thermistor (OAT)

The OAT connection is used in conjunction with

communicating wall control. It is not required when the

furnace is controlled by a standard type thermostat.

Refer to the instructions supplied with the

communicating wall control for complete details.

Alternate Power Supplies

This furnace is designed to operate on a utility generated

power which has a smooth sinusoidat waveform. If the furnace

is to be operated on a generator or other alternate power

supply, the alternate power supply must produce a smooth

sinusoidal waveform for compatibility with furnace electronics.

The alternate power supply must generate the same voltage,

phase, and frequency (Hz) as shown in Table 11 or on the

furnace rating plate.

Power from an alternate power supply that non-sinusoidat may

damage the furnace or cause erratic furnace operation.

Contact the alternate power supply manufacturer for

specifications and details.

Table 11 Electrical Data -MODULATING (F/G)9MAC

UNIT SIZE

0601714

0602120

0801714

0802120

1002122

1202422

VOLTS-

HERTZ-

PHASE

115-60-1

OPERATING VOLTAGE

RANGE*

Maximum*

127

Minimum*

104

MAXIMUM

UNIT

AMPS

9.7

14.8

9.7

14.8

Permissible limits of the voltage range at which the unit operates satisfactorily.

UNIT

AMPACITY#

12.7

19.1

12.7

19.1

MINIMUM

WIRE

SIZE

AWG

MAXIMUM

WIRE

LENGTH

FT (M):_

29 (8.8)

30 (9.1)

29 (8.8)

30 (9.1)

MAXIMUM

FUSE OR

CKT BKR

AMPS_

# Unit ampacity = 125 percent of largest operating component's full load amps plus 100 percent of all other potential operating components' (EAC, humidifier, etc.) full load

amps.

1-Time-delay type is recommended.

$ Length shown is as measured one way along wire path between unit and service panel for maximum 2 percent voltage drop.

440 01 4201 03 Specifications subject to change without notice. 31

Figure39 1Isolation Relay for Humidifiers with Internal Power Supply

To Humidifier Leads

24 V

Coil

Figure 40 IVariable Speed Furnace Control - Switch Locations

To HUM Terminal On

Furnace Control Board I

P,4

SW-1

SW2 SW3 .q

OAT SW4

To Com/24V Screw Terminal

on Thermostat Strip

Al1157

L11F080

32 Specifications subject to change without notice. 440 01 4201 03

Figure 40 - continued Example of Variable Speed Furnace Control for ECM Blower Motor (Modulating)

COMMUNICATION

CONNECTOR

MODEL PLUG

SWITCHES AND

SLOWERDELAyOFF _

AIR CONDITIONING -.............

(A/C) AIRFLOW

SETUP SWITCHES

24 V THERMOSTAT

TERMINALS

STATUS AND COMM -----'----"-"

LED LIGHTS

3 AMP FUSE /_

TRANSFORMER 24 VAC

CONNECTIONS

115 VAC (L2) NEUTRAL

CONNECTIONS

PL1 6 LOW VOLTAGE MAIN

HARNESS CONNECTOR

CONTINUOUS FAN OUTDOOR SW4 SETUP

(CF) AIRFLOW AIR TEMP SWITCHES

SETUP SWITCHES CONNECTOR PL8 MODULATING

CONNECTOR

_ _4 _ /OAT_ ,/ /

PL8 _ TERMINAL (24A!AC

_* I t /_ I 0.5 AMP MAX.

d;=T=_=

........ ACRDJ

FLASH

I v / I UPGRADE

_" _ CONNECTOR

(FACTORY

_ =_::::_:::=_ _ ONLY)

s_O O-

COMM

_ PL3 6 ECM SLOWER

I_ I_ HARNESS

CONNECTOR

s_'c

t N ,%T2OT, g PofcE

SOFTWARE EAC 1 TERMINAL 115 VAC (L1) LtNE MOTOR CONNECTOR

VERSION (t15 VAC 1.0 AMP MAX.) VOLTAGE CONNECTIONS

Lll F091

VENTING

NOTE: Planning for the venting system should be done in

conjunction with planning for the ductwork, drainage, and

furnace accessories, such as air cleaners and humidifiers.

Begin assembling the venting system AFTER the furnace is set

in place in the required orientation.

Venting for this furnace shall follow all Local codes for category

IV venting systems. This furnace is CSA approved for venting

with PVC/ABS DWV venting systems. This furnace is also CSA

approved for venting the M&G DuraVent ® PolyPro ®

polyproplylene venting systems.

NOTE: THESE INSTRUCTIONS DO NOT CONTAIN

DETAILED INSTALLATION INSTRUCTIONS FOR

POLYPROPYLENE VENTING SYSTEMS. Refer to the

polyproplylene venting system manufacturer's installation

instructions for the polyproplylene venting system installation.

NOTE: When using polypropylene venting systems, all venting

materials used, including the vent terminations, must be from

the same manufacturer.

Special Venting Requirements for Installations

in Canada

Installation in Canada must conform to the requirements of

CAN/CSA B149 code. Vent systems must be composed of

pipe, fittings, cements, and primers listed to ULC S636. The

special vent fittings, accessory concentric vent termination kits,

and accessory external drain trap available from the furnace

manufacturer have been certified to ULC $636 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 636,

PVC/CPVC Primer, Purple Violet for Flue Gas Venting and

GVS-65 PVC Solvent Cement for Royal Pipe or IPEX System

636(1)t, 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 $636, 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 CAN/CSA B149 is dependent upon full

compliance with alt 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.

*IPEX System 636 _' is a trademark of IPEX Inc.

Consignes sp6ciales pour I'installation de

ventilation au Canada

L'installation faite au Canada doit se conformer aux exigences

du code CAN/CSA B149-2010. Ce syst_me de ventillation dolt

se composer de tuyaux, raccords, ciments et appr_ts

conformes au ULC $636. La tuyauterie de ventilation des gaz,

ses accessoires, le terminal concentrique mural ainsi que

I'ensembte du drain de condensation exterieur fourni par le

fabricant de cette fournaise ont 6te certifies ULC S636 pour

I'application des composantes Royal Pipe, IPEX PVC qui sont

certifiees & ce standard. Au Canada, I'appr_t et le ciment

doivent _tre du m_me fabricant que le systeme d'evacuation.

440 01 4201 03 Specifications subject to change without notice. 33

Uappr_t GVS-65 (Purple) et le ciment-solvant GVS-65 doivent

_tre utilise avec les Royal Pipe. Systeme IPEX 636, appr_t

PVC/CPVC, Purple pour evacuation des gaz de combustion et

systeme IPEX 636(1)t, ciment PVC pour evacuation des gaz

de combustion, cote classe IIA, 65 deg C. doivent _tre utilises

avec le systeme d'evacuation IPEX 636 - Ne pas combiner I

'appr_t et le ciment d'un manufacturier avec un systeme

d'evacuation d'un manufacturier different.

Bien suivre les indications du manufacturier Iors de I'utilisation de

I'appr_t et du ciment et ne pas utiliser ceux-ci si la date

d'expiration est atteinte.

Uoperation securitaire, tel que definit par ULC S636, du systeme

de ventilation est base sur les instructions d'instaltation suivantes,

ainsi que I'usage approprie de I'appr_t et ciment. Tout arret feu et

solin de toit utilises avec ce systeme doivent _tre des materiaux

listes UL. L'acceptation du standard Canadien CAN/CSA B149

est directement relie & rinstallation conforme aux instructions ci-

haut mentionnees. Le standard Canadien recommande I'

inspection par un personel qualifie et ce, une fois par annee.

Les autoritees ayant juridiction (inspecteurs de gas, inspecteurs

en b&timents, departement des incendies, etc) devraient _tre

consultees avant I'installation afin de determiner si un permis est

requis.

CARBON MONOXIDE POISONING HAZARD

Failure to follow the steps outlined below for each appliance

connected to the venting system being placed into operation

could result in carbon monoxide poisoning or death.

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.

1. Seal any unused openings in venting system.

2. Inspect the venting system for proper size and hori-

zontal pitch, as required in the National Fuel Gas

Code, ANSI Z223.1/NFPA 54 or the CSA B149.1 Nat-

ural Gas and Propane Installation Code and these in-

structions. Determine that there is no blockage or re-

striction, leakage, corrosion and other deficiencies,

which could cause an unsafe condition.

3. As far as practical, close all building doors and win-

dows and all doors between the space in which the ap-

pliance(s) connected to the venting system are loc-

ated and other spaces of the building.

4. Close fireplace dampers.

5. Turn on clothes dryers and any appliance not connec-

ted 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.

8. If improper venting is observed during any of the

above tests, the venting system must be corrected in

accordance with the National Fuel Gas Code, ANSI

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

Propane Installation Code.

9. After it has been determined that each appliance con-

nected to the venting system properly vents when

tested as outlined above, return doors, windows, ex-

haust fans, fireplace dampers and any other gas-fired

burning appliance to their previous conditions of use.

General

If this furnace replaces a furnace that was connected to a vent

system or chimney, the vent or vent connectors of other

remaining appliances may need to be re-sized. Vent systems

or vent connectors of other appliances must be sized to the

minimum size as determined using appropriate table found in

the current edition of National Fuel Gas Code NFPA 54/ANSI

Z-223.1. In Canada, refer to CAN/CSA-B149.1

An abandoned masonry chimney may be used as a raceway

for properly insulated and supported combustion-air (when

applicable) and vent pipes. Each furnace must have its own set

of combustion-air and vent pipes and be terminated

individually, as shown in Figure 47 for Direct Vent (2-pipe)

system or Figure 48 for ventilated combustion air option.

A furnace shall not be connected to a chimney flue serving a

separate appliance designed to burn solid fuel.

Other gas appliances with their own venting system may also

use the abandoned chimney as a raceway providing it is

permitted by local code, the current edition of the National Fuel

Gas Code and the vent or liner manufacturer's installation

instructions. Care must be taken to prevent the exhaust gases

from one appliance from contaminating the combustion air of

other gas appliances.

Do not take combustion air from inside the chimney when using

ventilated combustion air or single pipe vent option.

These furnaces can be vented either as direct vent furnace, or

as ventilated combustion air system. Each type of venting

system is described below. Common venting between

furnaces or other appliances prohibited.

Materials

U.S.A.

Combustion air and vent pipe, fittings, primers, and solvents

must conform to American National Standards Institute (ANSI)

standards and American Society for Testing and Materials

(ASTM) standards. See Table 13 for approved materials for

use in the U.S.A. This furnace is also CSA approved for venting

with M&G DuraVent® PolyPro® polyproplylene venting

systems.

Canada

Special Venting Requirements for Installations in Canada

Installation in Canada must conform to the requirements of

CAN/CSA B149 code. Vent systems must be composed of

pipe, fittings, cements, and primers listed to ULC S636. M&G

DuraVent PolyPro polyproplylene venting systems are ULC

S636 listed.

NOTE: When using polypropylene venting systems, all venting

materials used, including the vent terminations, must be from

the same manufacturer.

34 Specifications subject to change without notice. 440 01 4201 03

Venting Systems

CARBON MONOXIDE POISONING HAZARD

Failure to follow the instructions outlined in Locating the Vent

Termination for each appliance being placed into operation

could result in carbon monoxide poisoning or death.

For all venting configurations for this appliance and other gas

appliances placed into operation for the structure, provisions for

adequate combustion, ventilation, and dilution air must be

3rovided in accordance with:

U.S.A. Installations: Section 9.3 NFPA 54/ANSI Z223.1

1-2009, Air for Combustion and Ventilation and applicable

3rovisions of the local building codes.

Canadian Installations: Part 8 of CAN/CSA-B149.1-10.

Venting Systems and Air Supply for Appliances and atl

authorities having jurisdiction.

RECOMMENDED SUPPORT FOR VENT TERMINATIONS

It is recommended that sidewall vent terminations of over 24

inches (0.6 M) in length or rooftop vent terminations of over

36 inches (1 M) in length be supported by EITHER the fact-

ory accessory vent termination kit or field-supplied brackets

or supports attached to the structure. A factory accessory

vent termination kit may be used for direct vent terminations.

Termination kits are available for 2-in. or 3-in. pipe. See

Table 12 for available options.

A factory accessory concentric vent termination kit is available

for direct vent terminations. Concentric vent termination kits are

available for 2-in. and 3-in. pipe. See Table 12 for available

options.

Vent Termination Kit for Direct

Table 12 Vent (2-pipe) Systems

Diam,Of

DirectVent (2-pipe) Termination Combustion Air

TerminationKit System and Vent Pipes

in,(mm)

2-in (51 mm) Concentric Single Penetration 1, 1-1/2, 2, or 2-1/2

Vent Kit of Wall or Roof (25, 38, 51, 64 mm)

3-in (76 mm) Concentric Single Penetration 2-1/2, 3 or 4

Vent Kit of Wall or Roof (64, 76, 102 mm)

2-Pipe 1, 1-1/2, 2, or 2-1/2

2-in (51 mm) Termination Termination

Bracket Kit System (25, 38, 51, 64mm)

2-Pipe 2-1/2, 3 or 4

3-in (76 mm) Termination Termination

Bracket System (64, 76, 102 mm)

Direct Vent /2-Pipe System

In a direct vent (2-pipe) system, all air for combustion is taken

directly from outdoor atmosphere, and all flue products are

discharged to outdoor atmosphere. Combustion-air and vent

pipes must terminate together in the same atmospheric

pressure zone, either through the roof (preferred) or a sidewall.

See Figure57 for references to clearances required by

National code authorities.

OPTIONAL CONFIGURATION FOR COMBUSTION AIR

INLET PIPE

In applications where there is a risk of excessive moisture

entering the combustion air inlet pipe, a moisture trap may be

added to the inlet pipe to help prevent moisture from entering

the furnace from the combustion air inlet pipe. See

Figure 49.

When sizing venting systems, the equivalent length of the

optional inlet pipe moisture trap must be taken into account.

Ventilated Combustion Air Systems

In a ventilated combustion air option, the vent terminates and

discharges the flue products directly to the outdoors similar to a

direct vent system. See Figure 58 for references to clearances

required by National code authorities.

All air for combustion is piped directly to the furnace from a

space that is well ventilated with outdoor air (such as an attic or

crawl space) and the space is well isolated from the living

space or garage. Combustion air requirements for this option

are the same as the requirements for providing outside air for

combustion for a single pipe vent system. Refer to the "Air For

Combustion and Ventilation Section."

OPTIONAL VENTING BELOW THE FURNACE

The venting system may be positioned below the furnace

ONLY IF the factory accessory External Vent Trap Kit is used.

The External Vent Trap Kit is only approved for PVC/ABS

DWV venting systems.

CAREFULLY FOLLOW THE INSTRUCTIONS PROVIDED

WITH THE EXTERNAL VENT TRAP KIT FOR LAYING OUT

THE VENTING SYSTEM AND THE DRAIN SYSTEM. The

instructions included with this furnace DO NOT APPLY to

vent systems that are located below the furnace

CARBON MONOXIDE POISONING HAZARD

Failure to follow the instructions outlined in Locating the Vent

Termination for each appliance being placed into operation

could result in carbon monoxide poisoning or death.

The instructions included with this furnace DO NOT APPLY

to vent systems that are located below the furnace. CARE-

FULLY FOLLOW THE INSTRUCTIONS PROVIDED WITH

THE EXTERNAL VENT TRAP KIT FOR LAYING OUT THE

VENTING SYSTEM AND THE DRAIN SYSTEM when all or

part of the venting system is placed below the furnace.

Proper configuration of the venting and drain system is critic-

al when placing all or part of the venting system below the

level of the furnace. VENT GASSES COULD BE RELEASED

FROM THE DRAINAGE SYSTEM, if the instructions

provided with the External Vent Trap Kit are not followed.

440 01 4201 03 Specifications subject to change without notice. 35

Table13

ASTM

SPECIFICATION

(MARKEDON

MATERIA_

D1527

D1785

D2235

D2241

D2466

D2468

D2564

D2661

D2665

F438

F441

F442

F493

F628

F656

F891

Approved Combustion-Air and Vent Pipe, Fitting and Cement Materials (U.S.A. Installation)

MATERIAL PIPE FITTINGS

ABS Pipe -

PVC Pipe -

For ABS - -

PVC Pipe -

PVC -Fittings

ABS - Fittings

For PVC - -

ABS Pipe Fittings

PVC Pipe Fittings

CPVC - Fittings

CPVC Pipe -

For CPVC - -

ABS Pipe -

For PVC - -

PVC Pipe -

SOLVENT CEMENT AND

PRIMERS

Solvent Cement

Primer

DESCRIPTION

Schedule-40

For ABS

SDR-21 & SDR-26

Schedule-40

For PVC

DWV at Schedule-40 IPS sizes

DWV

Schedule-40

SDR

For CPVC

Cellular Core DWV at Schedule-40 IPS

sizes

For PVC

Cellular Core Schedule-40 & DWV

Vent Coupling and Adapter with

Figure 41 Gaskets Figure 42 Vent Pipe Flush with Adaptor

VENT PIPE ADAPTER WITH GASKET

INSTALLED ON FURNACE VENT

PIPE IS CUT FLUSH WITH TOP OF

ADAPTER.

Vent Coupling and Adapter

Attach gaskets to vent pipe and combustion air adapters. Al1314

Figure 43

A11339A

Vent Pipe Flush Showing Coupling

ALIGN NOTCHES IN VENT PIPE

COUPLING OVER STAND-OFF

ON ADAPTER. TORQUE LOWER

CLAMP 15 LB-IN. WHEN REMAINING

VENT PIPE IS INSTALLED, TORQUE

UPPER CLAMP TO 15 LB-IN.

A11889B

36 Specifications subject to change without notice. 440 01 4201 03

Locating the Vent Termination

General

NOTE: Termination Requirements for the Provinces of

Alberta and Saskatchewan are located at the end of this

section.

Combustion-air inlet pipe (Direct Bent/2-Pipe system only) and

vent pipe must terminate outside structure, either through

sidewall or roof.

For vent termination clearance, references to National codes

are shown in Figure 57 for Direct Vent/2-Pipe system and

Figure 58 for Ventilated Combustion Air system. For exterior

termination arrangements, refer to Figure57 for Direct

Vent/2-Pipe system and Figure 58 for Ventilated Combustion

Air system. Contact Local code authorities for other

requirements to and/or exemptions from the National codes

shown in the figures.

Roof termination is often preferred since it is less susceptible to

damage or contamination, is usually located away from

adjacent structures, is less prone to icing conditions, and often

has less visible vent vapors. Sidewall terminations may require

sealing or shielding of building surfaces with a corrosive

resistance material due to the corrosive properties of

combustion products from vent system as well as protection of

adjacent structures.

RECOMMENDED SUPPORT FOR VENT TERMINATIONS

It is recommended that side-wall vent terminations in excess

of 24 inches (0.6 M) or rooftop terminations in excess of 36

inches (1.0 M) in vertical length be supported by EITHER the

Direct Vent Termination Kit shown in Table 12 or by

field-supplied brackets or supports fastened to the structure.

When determining appropriate location for termination, consider

the following guidelines:

1. Comply with all clearance requirements stated in

Figure 57 or Figure 58 per application.

2. Termination or termination kit should be positioned where

vent vapors will not damage plants/shrubs or air

conditioning equipment.

3. Termination or termination kit should be positioned so

that it will not be affected by wind eddy, such as inside

building corners, nor by recirculation of flue gases,

airborne leaves, or light snow.

4. Termination or termination kit should be positioned where

it will not be damaged by or subjected to foreign objects

such as stones, balls, etc.

5. Termination or termination kit should be positioned where

vent vapors are not objectionable.

Direct Vent /2-Pipe System

Direct vent (2-pipe) vent and combustion air pipes must

terminate outside the structure. See Figure 57 for references to

vent clearances required by National code authorities.

Allowable vent and combustion air terminations are shown in

Figure 47.

CARBON MONOXIDE POISONING HAZARD

Failure to follow the instructions outlined below for each

appliance being placed into operation could result in carbon

monoxide poisoning or death.

For all venting configurations for this appliance and other gas

appliances placed into operation for the structure, provisions

for adequate combustion, ventilation, and dilution air must be

provided in accordance with:

U.S.A. Installations: Section 9.3 NFPA 54/ANSI Z223.1

1-2009, Air for Combustion and Ventilation and applicable

provisions of the local building codes.

Canadian Installations: Part 8 of CAN/CSA-B149.1-10.

Venting Systems and Air Supply for Appliances and all

authorities having jurisdiction.

Ventilated Combustion Air

The vent pipe for a Ventilated Combustion Air System must

terminate outdoors. See Figure57 for references to vent

clearances required by National code authorities. Allowable

vent terminations are shown in Figure 48. The combustion air

pipe terminates in a welt-ventilated attic or crawl space. Follow

the clearances as shown in Figure 55 and Figure 56.

The combustion air pipe cannot terminate in attics or crawl

spaces that use ventilation fans designed to operate in the

heating season. If ventilation fans are present in these areas,

the combustion air pipe must terminate outdoors as a Direct

Vent System.

Termination Requirements for the

Provinces of Alberta and Saskatchewan

The Provinces of Alberta and Saskatchewan require a

minimum unobstructed distance of 4 ft. (1.2m) from the

foundation to the property line of the adjacent lot for vent

termination of any appliance with an input over 35,000 btuh. If

there is less than 4 ft. (1.2m) of unobstructed distance to the

property line of the adjacent lot, no type of vent termination is

permitted for appliances with inputs greater than 35,000 btuh.

There are no additional restrictions on unobstructed distances

greater than 8 ft. (2.4m). All single, 2-pipe and concentric vents

may be used, providing all other Code and manufacturer's

requirements in these instructions are adhered to. Refer to the

appropriate Vent Termination section above for locating the

vent termination.

If the unobstructed distance from the foundation to the property

line of the adjacent lot is no less than 4 ft. (1.2m) and no

greater than 8 ft. (2.4m), it will be necessary to re-direct the flue

gas plume. In this situation, a concentric vent kit cannot be

used. A 2-pipe termination (or single pipe termination when

permitted) that re-directs the flue gas away by use of an elbow

or tee, certified to ULC $636 from the adjacent property line

must be used. (See Figure 44 and Figure 46)

The concentric vent kit currently cannot be modified to attach

an elbow to the vent portion of the rain cap. A tee attached to

the rain cap could potentially direct the flue gas plume toward

the intake air stream and contaminate the incoming combustion

air for the furnace.

Refer to Figure 44 and Figure 46 for terminations approved for

use in Alberta and Saskatchewan.

440 01 4201 03 Specifications subject to change without notice. 37

Figure 44 ITee at Termination Outlet

OPTIONALTERMINATION

BRACKETFOR 2 PiPE

TERMINATIONS

12-in

30.48 cm

Above anticipated

snow level

L12F030

Sample Inlet Air Pipe Connection

Figure 45 for Polypropylene Venting Systems

EXAMPLE FOR

UPFLOW INSTALLATIONS.

MAY BEAPPLIED TO

OTHER CONFIGURATIONS.

A12220

Figure 46 IVent Terminations

COMBUSTION AIR LEVEL OR GRADE,

(ELBOW PARALLEL WHICHEVER IS

TO WALL) GREATER

SEPARATION

OVERHANG

Clearance to overhang per code

For single pipe vent

applications, install a 45

degree elbow pointing

....."'_ downward

12 hi (3048mm) M_N Ground

Leve_ OR S#ow Level

L12F031

38 Specifications subject to change without notice. 440 01 4201 03

Figure 47 _Combustion Air and Vent Pipe Termination for Direct Vent (2-Pipe) System

Vertical separation between

combustion air and vent

8 _t in. (222mm) or 3 in.(76mm)

6 _i in. (172mm) or 2in. (51mm)_

Maintain 12 in. (305mm) \,

min. Clearance above

highest anticipated snow

level maximum of 24 in.

(614ram) above roof

\\\\\\

Roof Termination (Preferred)

Note:

36 in. separation between

pairs of inlets only required

Note: for direct vent systems

'A" denotes 0 To 2 in. (51 mm)

A,_ Between the first 2 vents Third

I_ (and fourth vent, if used) .........

vent

must be 36 in. Away (914mm) ............. A

H t........................b_;igast36in. $ Maintain 12 in (305ram) min CI.......

_[/ _ (914mm) -6,_ abovehighestanticipated level.....

_J_-i . :_ _2r:_/ _, maxi ...... f24 in. (6t4mm)ab ...... f

_ Concentric Vent and Combustion Air

Roof Termination (preferred) t in. (25ram) maximum

" (Typ.) from wall to inlet

Abandoned masonry used

as raceway (per code)

Concentric Vent and Combuetion Air"

Side Termination

12 in. Min from

overhang or

roof (Typ.)

12 in. From Overhang

or roof (Typ.)

Maintain 12 in. (305mm) min. Clear

} in. 1' ance above highest anticipated snow

(914mm)_ ....... _ level or grade whichever is greater

......... (Typ.)

Side wall termination of

less than 12 in. (3O5mm)

above highest snow level

(914mm)

_,tleast 36 in.

(914mm)

between bottom of com

bustion air and bottom of

vent (Typ.)

Maintain 12 in. (305ram) min.

Clearance above highest an

ticipated snow level or grade

whichever is greater (Typ.)

Note:

'A" denotes 0 To 2 in. (51 mm)

Between the first 2 vents Third

vent (and fourth vent, ifused) must

be 36 in. Away (914mm)

L12F032

Figure 48 Vent Pipe Termination for Ventilated Combustion Air System

Roof Termination (Preferred)

(305ram)

minimum clearance

above highest anticipated

snow level maxim um of

24 _n (610ram) above roof

Abandoned masonry

used as raceway

(percode)

12 in m_n (305 ram)from

overhang or roof

6 in 152mm) m_n_mum clearance

bergen wa _ and end o vent pipe

10 in (254mm) m_imum pipe lengh

S_de wall term_naSon

w_h 2 elbows (preferred)

Size the Vent and Combustion Air Pipes

General

Furnace combustion air and vent pipe connections are sized

for 2-in. (50 mm ND) PVC/ABS DWV pipe. The combustion air

and vent pipe connections also accommodate 60mm

polypropylene venting systems with outside diameters of

approximately 60 mm (2-3/8 inches). Any pipe diameter

Maintain 12 in (305ram)

m_nimum clearance

above h_ghest anticipated

snow level or grade

whichever is greater

Maintain 12 in (305ram)

m_nimum clearance

above h_ghest anticipated

snow level or grade

whichever is greater

Sidewall Ter m_nation

w_th Straight P_pe (preferred)

A05091

change should be made outside furnace casing in vertical pipe.

Any change in diameter to the pipe must be made as close to

the furnace as reasonably possible.

The Maximum Vent Length for the vent pipe and combustion air

pipe equals the Maximum Equivalent Vent Length (MEVL) in

Table 14 or Table 16, minus the number of fittings multiplied by

the deduction for each type of fitting used from Table 15.

440 01 4201 03 Specifications subject to change without notice. 39

OPTIONAL CONFIGURATION FOR COMBUSTION AIR

INLET PIPE

In applications where there is a risk of excessive moisture

entering the combustion air inlet pipe, a moisture trap may be

added to the inlet pipe to help prevent moisture from entering

the furnace from the combustion air inlet pipe. See

Figure 49.

When sizing venting systems, the equivalent length of the

optional moisture trap (15 feet/5 M) must be taken into ac-

count

Figure 49

Optional Combustion Air Inlet

Moisture Trap

As an option to prevent moisture from trickling into the furnace

vestibule, a trap can be installed in the intake air pipe near the

furnace. Connecting a drain line to the trap is optional as trace

amounts of moisture will evaporate into the intake air stream. If

the combustion air inlet is located near a moisture exhaust

duct, or there are other concerns of excessive moisture being

drawn into the combustion air inlet, it is encouraged to connect

a drain line to the trap.

The trap can be constructed from a running tee of the same

diameter of the intake air pipe with EITHER a removable cap

attached to a 6-inch long pipe connected to the tee or the

External vent Trap Kit to help prevent contaminants from

entering the furnace. See Figure 49.

I Optional Combustion Air Inlet Moisture Trap

_® ®

TO CODE-APPROVED DRAIN OR CONDENSATE PUMP

Representative drawing only, some models may vary in appearance.

o-oQ

L12F028

The External Vent Trap Kit accessory may be used as a trap for

the combustion air inlet pipe if a large amount of moisture must

be removed. The drain line may be connected to the same

drain as the furnace condensate and the evaporator coil

condensate line ONLY if the inlet air trap drain and the

evaporator coil drain empty into an open segment of pipe

above the drain, See Figure 12. When using the External Vent

Trap Kit, refer to those instructions for proper drain

connections.

The tee may also be connected to the intake air pipe on the

side of the casing. See Figure 49.

In any configuration, it will be necessary to add the equivalent

length of the tee (15 feet/5 M) to the Total Equivalent Vent

Length of the venting system.

ADDITIONAL INFORMATION FOR POLYPROPYLENE

VENTING SYSTEMS

Polypropylene venting systems include flexible vent pipe.

These flexible vent pipes have a different equivalent vent

length than straight sections of PVC/ABS DWV vent pipe. Be

sure to make the appropriate deductions from the Maximum

Equivalent Vent Length (MEVL), or additions to the Total

Equivalent Vent Length (TEVL), when applying flexible vent

pipes in polypropylene venting systems. See the polypropyl-

ene vent system manufacturer's installation instructions for

details.

When using metric-sized venting systems, use these equivat-

encies for obtaining the proper MEVL from the Tables:

Use 2" Vent Tables for 60mm (o.d.) vent systems

Use 3" Vent Tables for 80mm (o.d.) vent systems

Use 4" Vent Tables for 100mm (o.d.) vent systems

40 Specifications subject to change without notice. 440 01 4201 03

The measured length of pipe used in a 2-pipe termination is

included in the total vent length. Include deductions from the

Maximum Equivalent Vent Length (MEVL) contained in the

Venting Tables for elbows and flexible vent pipe. Factory

accessory concentric vent terminations, or pipe lengths and

elbows used for "standard" vent terminations (see vent

termination figures associated with Table 14) do not require a

deduction from the Maximum Equivalent Vent Length. Include a

deduction for a Tee when used for Alberta and Saskatchewan

terminations.

NOTE: Polypropylene venting systems MAY require additional

deductions from the MEVL, or additions to the TEVL, for vent

terminations and flexible pipe sections. See the polypropylene

venting system manufacturer's instructions for details on

equivalent lengths of vent terminations and flexible vent pipes,

and for calculating total vent lengths.

To calculate the Total Equivalent Vent Length (TEVL) of the

venting system:

1. Measure the individual distance from the furnace to the

termination for each pipe.

2. Count the number of elbows for each pipe.

3. For each pipe, multiply the number of elbows by the

equivalent length for the type of elbow used. Record the

equivalent length of all the elbows for each pipe.

4. If a Tee is used on the termination (Alberta and

Saskatchewan, when required), record the equivalent

length of the Tee used.

5. Calculate Total Equivalent Vent Length by adding the

equivalent lengths of the fittings to the lengths of the

individual vent and combustion air pipes.

6. When using polypropylene venting systems with flexible

vent pipes, perform adjustments for the equivalent length

of the flexible vent pipe to the calculated total equivalent

venting system length. See the polypropylene vent

system manufacturer's instructions for details.

7. Select a diameter of vent pipe from Table 14 and

Table 16 and note the Maximum Equivalent Vent Length

(MEVL) shown for that application for that specific

furnace input size. Compare the Total Equivalent Vent

Length (TEVL) to the MEVL:

a. If the Total Equivalent Vent Length is shorter than the

Maximum Equivalent Vent Length for the diameter of

pipe chosen, then that diameter of pipe selected may

be used.

b. If the Total Vent Length is longer than the Maximum

Equivalent Vent Length for the diameter of pipe

chosen, that diameter pipe MAY NOT be used for

venting the furnace. Try the next larger diameter pipe.

NOTE: If the calculated Total Equivalent Vent Lengths results

in different diameter pipes for the vent and combustion air,

select the larger diameter for both pipes.

NOTE: If the Maximum Vent Length for diameter of the pipe

selected is longer than the measured length and the equivalent

length of all the fittings and terminations (TEVL), recalculate

Total Equivalent Vent Length using the next smaller diameter. If

the Maximum Vent Length is still longer than the longer TEVL

of the vent pipe or combustion air pipe, then that diameter of

pipe selected may be used.

When installing vent systems with pipe lengths of 10 ft. (3.0 M)

or less, use the smallest allowable pipe diameter. Using pipe

size greater than required for short venting systems may result

in loss of efficiency, incomplete combustion, flame disturbance,

or flame sense lockout.

For vent systems longer than 10 ft. (3.0 M), any larger diameter

shown in Table 14 and Table 16 for that size model may be

used.

Combustion Air and Vent Piping Insulation

Guidelines

NOTE: Use closed cell, neoprene insulation or equivalent.

The vent pipe may pass through unconditioned areas. The

amount of exposed pipe allowed is shown in Table 17.

1. Using winter design temperature (used in load

calculations), find appropriate temperature for your

application and furnace model.

2. Determine the amount of total and exposed vent pipe.

3. Determine required insulation thickness for exposed pipe

length(s).

4. 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.

5. Insulate combustion air inlet piping when run in warm,

humid spaces.

6. Install the insulation per the insulation manufacturer's

installation instructions.

NOTE: Pipe length (ft /M) specified for maximum pipe lengths

located in unconditioned spaces (See Table 17) cannot exceed

total allowable pipe length as calculated from Table 14 or

Table 16.

Configure the Furnace

CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in personal injury or

death.

To route the vent pipe and combustion air pipe through the

furnace, the manufacturer supplied kit must be used. Failure

to properly seal the blower compartment from the furnace

vestibule could result in the circulation of carbon monoxide

throughout the structure. The vent pipe and combustion air

pipe must be a continuous pipe while passing through the

blower compartment. Seals supplied in this kit must be

installed per the instructions provided. Follow all procedures

outlined in these instructions.

Install the Vent and Combustion Air Pipes

With the furnace installed in the required position, remove the

desired knockouts from the casing. It will be necessary to

remove one knockout for the vent pipe and the other knockout

for the combustion air connection. (See Figure 13)

Use a flat blade screwdriver and tap on the knockout on

opposite sides, where the knockout meets the casing. Fold the

knockout down with duct pliers and work the knockout back

and forth until it is removed. Trim any excess metal from the

knockout with tin snips.

The vent elbow can be rotated to the required location on the

casing if necessary. See Figure 50 To rotate the vent elbow:

1. Loosen the clamp on the inlet of the vent elbow attached

to the inducer.

2. Rotate the vent elbow to the required position. There are

rounded notches in the vent elbow to align it with the

inducer for each orientation.

3. Tighten the clamp around the vent elbow. Torque the

clamp to 15 Ib-in. See Figure 51 through Figure 54.

440 01 4201 03 Specifications subject to change without notice. 41

Figure 50 Inducer Vent Elbow - Variable

MODULATING INDUCER ASSEMBLY

VENT ELBOW CLAMP

TORQUE 15 LB IN

INDUCER OUTLET t_6;

Figure 51 Upflow Configurations

"" ........ Any _ _used

'- -_._ckout m,_,y be used

for cetnb_dion air

for _nr_ctlon.

_4"_m " - Rotate verst elbow t_

'. V.59 required position.

UPFLOW LEFT - VENT CONFIGURATION

Representative drawing only, some models may vary in appearance.

Al1309

/_0 ._ _ , _ k.. '_ _',",/ '

Rotate vent elbow to f/ _ _ axe:t-: ...... _ -- _ _ -

rl_uiil_d po_i_en i _t)\ }

UPFLOW RIGHT - VENT CONFIGURATION

Representative drawing only, some models may vary in appearance.

Al1308

Upflow Configurations -continued

jjJfJJ

Anyotherunused<- _

knockoutmaybe used '{

for combustionair

connection. ,, 0

\\\

UPFLOW VERTICAL - VENT CONFIGURATION

Representative drawing only, some models may vary in appearance.

Al1310

*See NOTES following figures.

Figure 52 I Downflow Configurations

\_ Rotate ventelbow to

i:,_ _,_

i_ ........ ! Q2)>5) requiredposition.

DOWNFLOW LEFT - VENT CONFIGURATION

Representative drawing only, some models may vary in appearance.

Al1311

Rotateventelbowto

required position.

DOWNFLOW RIGHT - VENT CONFIGURATION

Representative drawing only, some models may vary in appearance.

Al1312

*See NOTES following figures.

42 Specifications subject to change without notice. 440 01 4201 03

Downflow Configurations - continued

DOWNFLOW VERTICAL - VENT CONFIGURATION

Requires Accessory Internal Vent Kit

See Specification Sheets for current kit number

Representative drawing only, some models may vary in appearance.

L11F063

* See NOTES following figures.

Figure 53 _Horizontal Left Configurations

AI1327

HORIZONTAL LEFT - VERTICAL VENT CONFIGURATION

Representative drawing only, some models may vary in appearance.

A11328

HORIZONTAL LEFT - LEFT VENT CONFIGURATION

Representative drawing only, some models may vary in appearance.

440 01 4201 03

Horizontal Left Configurations - continued

HORIZONTAL LEFT - RIGHT VENT CONFIGURATION* Al1329

* Requires accessory Internal Vent Kit

Representative drawing only, some models may vary in appearance.

* See NOTES following figures.

Figure 54 1Horizontal Right Configurations

COMBUSTION

CONNECTmONS

AI 1337

HORIZONTAL RIGHT - VERTICAL VENT CONFIGURATION

Representative drawing only, some models may vary in appearance.

A11336

HORIZONTAL RIGHT - LEFT VENT CONFIGURATION

Representative drawing only, some models may vary in appearance.

* See NOTES following figures.

Specifications subject to change without notice. 43

Horizontal Right Configurations - continued

ALTERNATE

COMBUSTION

AIR

AI 1335

HORIZONTAL RIGHT - RIGHT VENT CONFIGURATION

Representative drawing only, some models may vary in appearance.

* See NOTES following figures.

NOTES:

1. Attach vent pipe adapter with gasket to furnace casing.

2. Align notches in rubber coupling over standoffs on

adapter. Slide clamps over the coupling.

3. Slide vent pipe through adapter and coupling into vent

elbow.

4. Insert vent pipe into vent elbow.

5. Torque all clamps 15-lb.-in.

6. Attach combustion air pipe adapter with gasket to

furnace.

7. Attach combustion air pipe to adapter with silicone. Pilot

drill a ]/8-in. Hole in adapter and secure with a #7 x

]/2-in. Sheet metal screw.

Installing the Vent Pipe Adapter and

Combustion Air Pipe Adapter

CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in personal injury or

death.

To route the vent pipe and combustion air pipe through the

furnace, the manufacturer supplied kit must be used. Failure

to properly seal the blower compartment from the furnace

vestibule could result in the circulation of carbon monoxide

throughout the structure. The vent pipe and combustion air

pipe must be a continuous pipe while passing through the

blower compartment. Seals supplied in this kit must be

installed per the instructions provided. Follow all procedures

outlined in these instructions.

CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in personal injury or

death.

DO NOT use cement to join polypropylene venting systems.

Follow the polypropylene venting system manufacturer's

instructions for installing polypropylene venting systems.

NOTE: The rubber coupling that attaches to the vent pipe

adapter must be used. The adapter seals the vent pipe to the

casing and reduces the strain on the vent elbow attached to the

inducer.

1. Apply the gaskets to the vent pipe and combustion air

pipe adapters. If supplied, remove and discard round

center "slug" from interior of gasket. See Figure 41.

NOTE: The vent pipe adapter can be distinguished from the

inlet pipe adapter by the absence of an internal pipe-stopping

ring. The vent pipe can pass through the vent pipe adapter; it

cannot pass through the inlet pipe adapter.

2. Align the screw holes in the plastic vent pipe adapter with

the dimples in the casing.

3. Pilot drill the screw holes for the adapter in the casing

and attach the vent pipe adapter to the furnace with

sheet metal screws

4. Slide the end of the rubber vent coupling with notches in

it over the standoffs on the vent pipe adapter.

5. Insert a length of vent pipe through the coupling into the

outlet of the vent elbow.

6. Tighten the clamp around the outlet of the vent elbow.

Torque the clamp to 15 Ib-in.

The following instructions are for PVC/ABS DWV vent piping,

only. DO NOT USE THESE TECHNIQUES FOR

POLYPROPYLENE VENT PIPING SYSTEMS. See the

polypropylene vent system manufacturer's instructions for

installing polypropylene venting systems.

Install the remaining vent and combustion air pipes as shown

below. It is recommended that all pipes be cut, prepared, and

preassembled before permanently cementing any joint.

1. Working from furnace to outside, cut pipe to required

length(s).

2. De-burr inside and outside of pipe.

3. Chamfer outside edge of pipe for better distribution of

primer and cement.

4. Clean and dry all surfaces to be joined.

5. Check dry fit of pipe and mark insertion depth on pipe.

6. Insert the vent pipe into the vent elbow.

7. Torque clamp on vent elbow 15 Ib-in.

8. Torque clamp on vent coupling 15 Ib-in.

9. Insert the combustion air pipe into the adapter.

10. Pilot drill a screw hole through the adapter into the

combustion air pipe and secure the pipe to the adapter

with sheet metal screws. DO NOT DRILL INTO

POLYPROPYLENE VENT PIPES. Use an optional

accessory vent coupling, if needed.

11. Seal around the combustion air pipe with silicone or foil

tape. SILICONE SEALERS MAY NOT BE

APPROPRIATE FOR POLYPROPYLENE VENT

SYSTEMS. SEE POLYPROPYLENE VENT SYSTEM

MANUFACTRUER'S INSTRUCTIONS.

12. After pipes have been cut and preassembled, apply

generous layer of cement primer to pipe fitting socket

and end of pipe to insertion mark. Quickly apply

approved cement to end of pipe and fitting socket (over

primer). Apply cement in a light, uniform coat on inside of

socket to prevent buildup of excess cement. Apply

second coat. DO NOT CEMENT POLYPROPYLENE

FITTINGS.

13. While cement is still wet, twist pipe into socket with

1/4-in. turn. Be sure pipe is fully inserted into fitting

socket.

14. Wipe excess cement from joint. A continuous bead of

cement will be visible around perimeter of a properly

made joint.

15. Handle pipe joints carefully until cement sets.

16. Horizontal portions of the venting system shall be

supported to prevent sagging. Support combustion air

44 Specifications subject to change without notice. 440 01 4201 03

piping and vent piping a minimum of every 5 ft. (1.5M) [3

ft. (.91M) for SDR-21 or -26 PVC] using perforated

metal hanging strap or commercially available hangars

designed to support plastic pipe.

17. Prevent condensate from accumulating in the pipes by

sloping the combustion air piping and vent piping

downward towards furnace a minimum of 1/4-in. per

linear ft. with no sags between hangers.

18. Complete the vent and combustion air pipe installation

by connecting to the concentric vent or by installing the

required termination elbows as shown in Figure 46,

Figure 47, Figure 55 and Figure 56. For ventilated

combustion air terminations, see Figure 48.

19. Use appropriate methods to seal openings where

combustion air pipe and vent pipe pass through roof or

sidewall.

CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in personal injury or

death.

DO NOT use cement to join polypropylene venting systems.

Follow the polypropylene venting system manufacturer's

instructions for installing polypropylene venting systems.

Optional Installation of the vent pipe

NOTE: DO NOT USE THIS TECHNIQUE FOR

POLYPROPYLENE VENTING SYSTEMS.

This option provides a disconnect point for the vent pipe. The

vent pipe must be cemented to the plastic vent pipe adapter to

maintain a sealed vestibule. See Figure 42 and Figure 43

1. Insert a length of vent pipe through the casing into the

outlet of the vent elbow.

2. Slide the plastic vent pipe adapter over the length of the

vent pipe down to the furnace casing. Mark the pipe

where it is flush with the outlet of the adapter.

3. Remove the pipe from the furnace and the adapter and

cut off any excess pipe.

4. Clean and prime the end of the pipe that is flush with the

vent adapter with a primer that is appropriate for the type

of pipe being used.

5. Re-insert the pipe through the casing into the vent

elbow.

6. Tighten the clamp around the outlet of the vent elbow.

Torque the clamp to 15 Ib-in.

7. Apply cement to the end of the pipe and to the inside of

the plastic vent adapter.

8. Slide the adapter over the vent pipe and align the screw

holes in the adapter with the dimples in the furnace

casing.

9. Pilot drill 1/8-in. screw holes for the adapter in the casing

and secure the adapter to the furnace with sheet metal

screws.

10. Loosen the clamps on the rubber vent coupling.

11. Slide the end of the coupling with notches in it over the

standoffs in the vent pipe adapter.

12. Tighten the clamp of the coupling over the vent pipe

adapter. Torque the lower clamp around the vent pipe

adapter to 15 Ib-in.

13. Pilot drill a 1/8-in. hole in the combustion air pipe

adapter.

14. Complete the vent and combustion air pipe as shown in

"Install the Vent and Combustion Air Pipe"

FOR POLYPROPYLENE VENTING SYSTEMS

When using polypropylene venting systems, all venting ma-

terials used, including the vent terminations, must be from the

same manufacturer.

Installing the Vent Termination

Roof Terminations

A roof termination of any type will require a 4-in. (102 mm)

flashing for a 2-in. (50 mm ND) concentric vent or a 5-in. (127

mm) diameter flashing for a 3-in. (80 mm ND) concentric vent

kit. For 2-pipe or single pipe vent systems, a flashing for each

pipe of the required diameter will be necessary.

It is recommended that the flashing be installed by a roofer or

competent professional prior to installing the concentric vent.

The terminations can be installed on a flat or pitched roof.

Concentric Vent

Single or multiple concentric vent must be installed as shown in

Figure 47. Maintain the required separation distance between

vents or pairs of vents as shown in Figure 47 and all

clearance shown in Figure 57.

NOTE: Follow the instructions of the vent terminal

manufacturer. These instructions are provided as a reference

only.

Cut one 4-in. (102 mm) diameter hole for 2-in. (50 mm ND) kit,

or one 5-in. (127 mm) diameter hole for 3-in. (80 mm ND) kit in

the desired location.

Loosely assemble concentric vent/combustion air termination

components together using instructions in kit.

Slide assembled kit with rain shield REMOVED through hole in

wall or roof flashing.

NOTE: Do not allow insulation or other materials to accumulate

inside of pipe assembly when installing it through hole.

Disassemble loose pipe fittings. Clean and cement using same

procedures as used for system piping. DO NOT CEMENT

POLYPROPYLENE FITTINGS.

Two-Pipe (Direct Vent)Terminations

Two pipe vent terminals must be installed as shown in

Figure 47 and Figure 48. Maintain the required separation

distance between vents or pairs of vents as shown in

Figure 47 and Figure 48 and all clearance shown in Figure 57

or Figure 58.

RECOMMENDED SUPPORT FOR VENT TERMINATIONS

It is recommended that rooftop vent terminations in excess of

36 inches (1.0 M) in vertical length be supported by EITHER the

Direct Vent Termination Kit shown in Table12 or by

fie d-supp ied brackets or supports fastened to the structure.

Cut the required number of holes in the roof or sidewall for vent

and combustion air pipes. Sidewall holes for 2-pipe vent

terminations should be side-by-side, allowing space between

the pipes for the elbows to fit on the pipes.

Holes in the roof for direct-vent (two-pipe) terminations should

be spaced no more than 18-in. (457 mm) apart to help avoid

vent gas recirculation into combustion air intake.

Termination elbows will be installed after the vent and (if used)

combustion air pipe is installed.

440 01 4201 03 Specifications subject to change without notice. 45

Sidewall Terminations

Concentric Vent

NOTE: Follow the instructions of the vent terminal

manufacturer. These instructions are provided as a reference,

only.

Determine an appropriate location for termination kit using the

guidelines provided in section "Locating The Vent Termination"

in this instruction.

1. Cut one 4-in. diameter hole for 2-in. kit, or one 5-in.

diameter hole for 3-in. kit.

2. Loosely assemble concentric vent/combustion air

termination components together using instructions in kit.

3. Slide assembled kit with rain shield REMOVED through

hole.

NOTE: Do not allow insulation or other materials to accumulate

inside of pipe assembly when installing it through hole.

4. Locate assembly through sidewall with rain shield

positioned no more than 1-in. (25 mm) from wall as

shown in Figure 47.

5. Disassemble loose pipe fittings. Clean and cement using

same procedures as used for system piping. DO NOT

CEMENT POLYPROPYLENE FITTINGS.

Direct Vent (2-Pipe) Termination

NOTE: Follow the instructions of the vent terminal

manufacturer. These instructions are provided as a reference,

only.

RECOMMENDED SUPPORT FOR VENT TERMINATIONS

Determine an appropriate location for termination kit using the

guidelines provided in section "Locating The Vent Termination"

in this instruction.

1. Cut two holes, one for each pipe, of appropriate size for

pipe size being used.

2. Loosely install elbow in bracket (if used) and place

assembly on combustion-air pipe.

3. Install bracket as shown in Figure 44 and Figure 46.

NOTE: For applications using vent pipe option indicated by

dashed lines in Figure 47 and Figure 48, rotate vent elbow 90 °

from position.

4. Disassemble loose pipe fittings. Clean and cement using

same procedures as used for system piping. DO NOT

CEMENT POLYPROPYLENE FITTINGS.

For Ventilated Combustion Air Terminations, terminate as

shown in Figure 48.

(Direct Vent /2-Pipe System ONLY)

When two or more furnaces are vented near each other, two

vent terminations may be installed as shown in Figure 44 and

Figure46, but next vent termination, or pair of vent

terminations, must be at least 36-in. (914 mm) away from first

two terminations. It is important that vent terminations be made

as shown in Figure 44 and Figure 46 to avoid recirculation of

gases.

Inducer Outlet Restrictor

The loose parts bag may contain an inducer outlet restrictor.

The outlet restrictor is NOT used on these furnaces. Discard

restrictor.

It is recommended that side-wall vent terminations in excess

of 24 inches (0.6 M) in vertical length be supported by

EITHER the Direct Vent Termination Kit in Table 12 or by

field-supplied brackets or supports fastened to the structure.

46 Specifications subject to change without notice. 440 01 4201 03

Figure 55 _Crawl Space Vent Termination

Ventilated Combustion

Air intake pipe

_1_ Pipe hangar

Ventilated Combustion Air

intake termination in crawl

space

3" (76 mm)

12"(305 ram)

CRAWL SPACE

Figure 56 _Attic Vent Termination

t throuhgb.__._

roof flashing

Ventilated Combustion

Air intake pipe

-7

ATTIC L11F016

440 01 4201 03 Specifications subject to change without notice. 47

Figure 57 1Direct Vent Termination Clearance

AREAWHERE TERMINAL IS NOT PERMITED

25-24-65-2

[] VEHTTERMINAL \\\\\ (_ AIRSUPPLYINLET

NOTE: The following is based upon National codes for gas appliances, and is provided as a reference.

Refer to Local codes which may supersede these standards and/or recommendations.

Item ClearanceDescription

A Clearance abovegrade, veranda,porch, deck,balconyor

anticipated snow level 12 in. (305 ram)

9 in. (229 ram)for appliances>10,000 Btuh (3kW)

Clearanceto a windowor door thatmay be opened and </= 50,000Btuh ( 15 kW),

12 in. (305 ram) for appliances>50,000 Btuh (15kW)

C Clearanceto a permanentlyclosedwindow

Vertical clearanceto a ventilatedsoffit locatedabovethe

D terminal withina horizontal distanceof 2 feet (61 cm) from

the centerlineof the terminal

E Clearanceto an unventilatedsoffit

F Clearanceto an outsidecorner

G Clearanceto an inside corner

Clearanceto eachside of the centerlineextended above

Helectricalmeteror gas service regulator assembly

I Clearanceto service regulatorvent outlet

Clearanceto non mechanicalair supplyinlet to building or

the combustionair inlet to any other appliance

Clearanceto a mechanical air supply inlet

Canadian Installations {1)

(perCAN/CSAB149.1)

12 in. (305 ram)

18 in. (457 ram)above roof surface.

12 in. (305 ram) for appliances >10,000Btuh (3 kW)

and </=100,000Btuh ( 30 kW),

36 in. (914 mm) for appliances>100,000 Btuh (30 kW)

U.S. Installations Iz)

(per ANSI Z223.1/NFPA54)

For clearancesnot specifiedin ANSI Z223.1/NFPA54 orCAN/CSA B149.1,clearancesshallbe in accordance with local

installationcodes and the requirementsof the gas supplier and the manufacturer'sinstallationinstructions.

Manufacturer'sRecommendation:See Notes 3-8.

3 ft. (.9 M) within15 ft. (4.6 M) 3 ft. (.9 M) within 15 ft. (4.6 M)

abovethemeter/regulatorassembly, abovethe meter/regulatorassembly.

3ft. (.9 M) See Note 4.

12in. (305ram)for appliances>10,000 Btuh(3 kW) 9 in. (9 ram)for appliances>10,000 Btuh(3 kW)

J and </= 100,000Btuh ( 30 kW), and </= 50,000Btuh (15 kW),

36 in. (914 mm) for appliances>100,000 Btuh (30 kW) 12 in.(305 ram)for appliances>50,000 Btuh(15kW)

K 6 ft. (1.8 M) 3ft. (.9 M)

12 in. (305 ram). See Note 4.

L Clearanceundera veranda,porch, deck,or balcony Permittedonly if veranda,porch, deck,or balcony isfully openon a

minimumof two sides beneath the floor. Manufacturer'sRecommendation:See Notes 3-8.

Clearanceto each side ofthe centerlineextendedabove or

M below ventterminal of the furnace to adryer or water heater 12 in. (305 ram) 12 in. (305 ram)

vent, or other appliance'sdirect vent intake or exhaust

Inletair clearance to a moisture exhaust duct

N (dryervent, spa exhaust, etc.) 3 ft. (.9 M) 3 ft. (.9 M)

0 Clearancefrom a plumbingventstack 3 ft. (.9 M) 3 ft. (.9 M)

7 ft. (2.1 M). See Note 4.

p Clearance abovepavedsidewalk or paveddrivewaylocated Ventshall notterminate above a sidewalk or paveddrivewaythat is

on publicproperty locatedbetweentwo single family dwellingsand serves both Manufacturer'sRecommendation:See Notes 3-8.

dwellings.

> greaterthan, > greater than orequal to, < less than, _ lessthan or equal to

Notes:

In accordancewith the currentCAN/CSAB149,1,NaturalGas and PropaneInstallationCode,

In accordancewith the currentANSI Z223,1/NFPA54, NationalFuel GasCode

NOTE: Thistable is based upon Nationalcodesforgas appliances,andare providedas a reference.

Refer to Loca/ codeswhich maysupersedethese standardsand/orrecommendations.

4. For clearancesnotspecifiedin ANSIZ223,1/NFPA54 or CAN/CSAB 149,1,clearancesshallbe in accordancewithlocalinstallationcodesand the requirementsof the

gas supplierand the manufacturer'sinstallationinstructions,

5. When locatingventterminations,considerationmustbegivento prevailingwinds,location,andother conditionswhich maycauserecirculationof the combustionproducts

of adjacentvents, Recirculationcancause poorcombustion,inlet condensateproblems, and acceleratedcorrosionof the heat exchangers.

6. Designand positionvent outletsto avoidice build-upon and moisturedamageto surroundingsurfaces,

7. The vent for this applianceshall not terminate:

a, Nearsoffit vents of crawlspace vents or otherareaswherecondensateor vapor could createa nuisanceor hazardor properlydamage;or

b, Where condensatevapor could causedamageor could be detrimentalto the operationof regulators,reliefvalves, or other equipment,

8. Avoidventingunder a deckor large overhang,Recirculationcouldoccurand causeperformanceor systemproblems.Ice build-upmayoccur.

48 Specifications subject to change without notice. 440 O1 4201 03

Figure 58 _Other than Direct Vent Clearance - Ventilated Combustion Air Option

-fl

tXi AIR SUPPLY INLET E_ AREA WHERE TERMINAL IS NOT PERMITED 25-24-65-2

D VENT TERMINAL \Y_':_

NOTE:The following is based uponNational codes for gas appliances, and is provided as a reference.

Referto Local codes which may supersedethese standards and/or recommendations.

Item

U,S. Installations(z}

(per ANSI Z223.1/NFPA54)

ClearanceDescription

Clearanceabove grade, veranda,porch, deck.balcony or

anticipatedsnow level " 12 in. (305 ram)

4ft. (1.2M)belowor to the side of the opening,

Clearanceto a window or door thatmay be opened 1 ft (.3M) abovethe opening.

Manufacturer'sRecommendation:See Note 8.

Canadian Installations(1}

(perCAN/CSAB149.1)

12 in. (305 mm)

18 in. (457 ram)above roof surface.

12 in. (305 ram) for appliances >10,000Btuh (3 kW)

and </=100,000Btuh ( 30 kW),

36 in. (914 ram) for appliances>100,000 Btuh (30 kW)

Clearanceto a permanentlyclosedwindow

Vertical clearance to a ventilatedsoffit located abovethe

terminalwithin a horizontaldistanceof 2 feet (61 cm) from

the centedineof the terminal

Clearanceto an unventilatedsoffit

Clearanceto an outside corner

Clearanceto an inside corner

Clearanceto each side of the centerline extendedabove

electrical meter or gasservice regulator assembly

Clearanceto service regulatorvent outlet

Clearanceto non mechanicalair supplyinlet to buildingor

the combustionair inlet to any other appliance

Clearanceto a mechanicalair supplyinlet

For clearancesnotspecified in ANSI Z223.1/NFPA54 or CAN/CSAB149.1, clearancesshall be in accordancewith local

installationcodes and the requirementsof the gas supplier and the manufacturer'sinstallation instructions.

Manufacturer'sRecommendation:See Notes 3-8.

3 ft. (.9 M) within15 ft. (4.6 M) 3 ft. (.9 M) within15 ft. (4.6 M)

abovethemeter/regulatorassembly, abovethemeter/regulatorassembly.

3ft. (.9 M) See Note 4.

12in. (305 ram) for appliances>10,000 Btuh(3 kW) 4ft. (1.2M) belowor to the side of the opening,

Jand </= 100,000Btuh ( 30 kW), 1 ft (.3M) above the opening.

36 in. (914 ram) for appliances>100,000 Btuh (30 kW) Manufacturer'sRecommendation:See Note8

K 6 ft. (1.8 M) 3ft. (.9 M)

12 in. (305 ram). See Note 4.

L Clearanceundera veranda,porch, deck,or balcony Permittedonly if veranda,porch, deck, orbalcony is fully open

on a minimumof two sides beneaththe floor. Manufacturer'sRecommendation:See Notes3-8.

Clearanceto each side of the centerline extendedaboveor

M belowventterminal of the furnace to a dryer or waterheater 12 in. (305 ram) 12 in. (305 ram)

vent, orother appliance's directvent intake or exhaust

Inletair clearanceto a moistureexhaust duct

N (dryer vent, spa exhaust, etc.) 3 ft. (.9 M) 3 ft. (.9 M)

0 Clearancefrom a plumbingvent stack 3 ft. (.9 M) 3 ft. (.9 M)

7 ft. (2.1 M).

Clearanceabovepaved sidewalkor paveddrivewaylocated Vent shallnot terminateabove a sidewalk orpaved driveway 7ft. (2.1M)

P on publicproperty that is locatedbetweentwo single-familydwellingsand serves

both dwellings.

> greaterthan, > greaterthan or equalto, < lessthan, < less than or equalto

Notes:

In accordancewiththe current CAN/CSAB149,1,NaturalGas and PropaneInstallationCode,

In accordancewiththe current ANSIZ223,1/NFPA54, NationalFuelGas Code

NOTE: Thistable is basedupon Nationalcodesfor gas appliances,and areprovidedas a reference.

Refer to Loca/codes whichmay supersede thesestandardsand/orrecommendations.

4. Forclearancesnot specifiedinANSI Z223,1/NFPA54 orCAN/CSAB 149,1,clearancesshallbe in accordancewith localinstallationcodesandthe requirementsof the

gassupplierandthe manufacturer'sinstallationinstructions,

5. Whenlocatingventterminations,considerationmust be givento prevailingwinds,location,and otherconditionswhichmay causerecirculationofthe combustionproducts

of adjacentvents, Recirculationcan cause poor combustion,inlet condensationproblems,and/oracceleratedcorrosionof the heatexchangers.

6. Designand positionventoutletsto avoid ice build-upon and moisturedamageto surroundingsurfaces,

7. The ventfor this applianceshallnot terminate:

a, Nearsoffit vents of crawl spacevents or other areas wherecondensateor vaporcould create a nuisanceor hazardor propertydamage;or

b, Where condensatevapor couldcause damageor couldbe detrimentalto the operationof regulators,reliefvalves,or otherequipment,

8. These Nationalstandardsapply to all non-direct-ventgas appliances.Contact Localcode officialsfor additionalrequirementsand!orexclusions.

440 O1 4201 03 Specifications subject to change without notice. 49

Table 14 MAXIMUM EQUIVALENT VENT LENTH - Feet (Meters)

Note: Maximum Equivalent Vent Length (MEVL) does NOT include elbows or terminations

Use Table 15 -DEDUCTIONS FROM MEVL to determine allowable vent length for each application.

DIRECT VENT (2-PIPE) AND VENTILATED COMBUSTION AIR

Altitude

FT(M)

Unit Size

BTU/Hr

60,000

0to 2000 80,000

(0 to 610) 100,000

120,000

60,000

2001 to 3000 80,000

(610 to 914) 100,000

120,000

60,000

3001 to 4000 80,000

(914 to 1219) 100,000

120,000

60,000

4001 to 4500 80,000

(1219 to 1370) 100,000

120,000

See notes at end of Venting Tables.

See Table 16 for altitudes over 4500 ft (1370m).

Vent Pipe Diameter (in.)

1-1/2 2 2-1/2 3 4

55 (16.8) 135 (41.1) 235 (71.6) 265 (80.8)

35 (10.7) 130 (39.6) 175 (53.3) 235 (71.6) 265 (80.8)

50 (15.2) 110 (33.5) 235 (71.6) 265 (80.8)

15 (4.6) 100 (30.5) 250 (76.2)

45 (13.7) 127 (38.7) 222 (67.7) 250 (76.2)

30 (9.1) 90 (27.4) 165 (50.3) 222 (67.7) 249 (75.9)

40 (12.2) 104 (31.7) 223 (68.0) 250 (76.2)

11 (3.4) 93 (28.3) 237 (72.2)

40 (12.2) 119 (36.3) 210 (84.0) 235 (71.6)

25 (7.6) 85 (25.9) 155 (47.2) 210 (64.0) 232 (70.7)

40 (12.2) 98 (29.9) 211 (84.3) 236 (71.9)

8 (2.4) 86 (26.2) 224 (68.3)

35 (10.7) 115 (35.1) 204 (62.2) 228 (69.5)

23 (7.0) 85 (25.9) 150 (45.7) 202 (61.6) 224 (68.3)

40 (12.2) 94 (28.7) 205 (62.5) 229 (69.8)

83 (25.3) 217 (66.1)

Table 15 DEDUCTIONS FROM MAXIMUM EQUIVALENT VENT LENGTH - Feet (Meters)

Pipe Diameter (in): 1-1/2 2 2-1/2 3 4

Mitered 90 -oElbow 8 (2.4) 8 (2.4) 8 (2.4) 8 (2.4) 8 (2.4)

Medium Radius 90-0Elbow 5 (1.5) 5 (1.5) 5 (1.5) 5 (1.5) 5 (1.5)

Long Radius 90-° Elbow 3 (0.9) 3 (0.9) 3 (0.9) 3 (0.9) 3 (0.9)

Mitered 45-0Elbow 4 (1.2) 4 (1.2) 4 (1.2) 4 (1.2) 4 (1.2)

Medium Radius 45-0Elbow 2.5 (0.8) 2.5 (0.8) 2.5 (0.8) 2.5 (0.8) 2.5 (0.8)

Long Radius 45-0Elbow 1.5 (0.5) 1.5 (0.5) 1.5 (0.5) 1.5 (0.5) 1.5 (0.5)

Tee 16 (4.9) 16 (4.9) 16 (4.9) 16 (4.9) 16 (4.9)

Concentric Vent Termination 0 (0.0) 0 (0.0)

Standard Vent Termination 0 (0.0) 0 (0.0) 0 (0.0) 0 (0.0) 0 (0.0)

Note: 3- and 4-inch vent pipe systems require long radius elbows.

Figure 59 1Elbows Configurations

LONG MEDIUM MITERED

L11F082

Figure 60 Vent Terminal Configurations

L11 F083

L11 F084

Venting System Length Calculations

The Total Equivalent Vent Length for EACH combustion air or vent pipe equals the length of the venting system, plus the equivalent

length of elbows used in the venting system from Table 15.

Standard vent terminations or factory accessory concentric vent terminations count for zero deduction.

See vent system manufacturer's data for equivalent lengths of flexible vent pipe or other termination systems. DO NOT ASSUME

that one foot of flexible vent pipe equals one foot of straight PVC/ABS DWV vent pipe.

Compare the Total Equivalent Vent Length to the Maximum Equivalent Vent Lengths in Table 14 and Table 16.

50 Specifications subject to change without notice. 440 01 4201 03

Example 1

A direct-vent 60,000 BTUH furnace installed at 2100 ft. (640M). Venting system includes FOR EACH PIPE 100 feet (30 M) of vent

pipe, 95 feet (28 M) of combustion air inlet pipe, (3) 90°- long-radius elbows, (2) 450-long-radius elbows, and a factory accessory

concentric vent kit.

Can this application use 2-in. (50 mm ND) PVC/ABS DWV vent piping?

Measure the required linear length of air inlet

and vent pipe; insert the longest of the two here

Add equiv length of (3) 900-long-radius elbows 3ff

(use the highest number of elbows for either the 3 x

vent or inlet pipe) (0.9 M)

Add equiv length of (2) 450-long-radius elbows 1.5ft

(use the highest number of elbows for either the 2 x

vent or inlet pipe) (0.5 M)

Add equiv length of factory concentric vent term

Add correction for flexible vent pipe, if any

Total Equivalent Vent Length (TEVL)

Maximum Equivalent Vent Length (MEVL)

Is TEVL less than MEVL?

Example 2

100 ft.

(30 M)

9ft.

(2.7 M)

3ft.

(0.9 M)

Oft.

112 ft.

(34 M)

127 ft.

(38.7 M)

YES

Use length of the longer of the vent

or air inlet piping system

From Table 15

From Vent Manufacturer's

instructions; zero for PVC/ABS DWV

Add all of the above lines

For 2" pipe from Table 14

Therefore, 2" pipe MAY be used

A direct-vent 60,000 BTUH furnace installed at 2100 ft. (640M). Venting system includes FOR EACH PIPE 100 feet (30 M) of vent

pipe, 95 feet (28 M) of combustion air inlet pipe, (3) 900-long-radius elbows, and a polypropylene concentric vent kit. Also includes 20

feet (6.1 M) of flexible polypropylene vent pipe, included within the 100 feet (30 M) of vent pipe.

Assume that one meter of flexible 60mm or 80mm polypropylene pipe equals 1.8 meters of PVC/ABS pipe. VERIFY FROM VENT

MANUFACTURER'S INSTRUCTIONS.

Can this application use 60mm (o.d.) polypropylene vent piping? If not, what size piping can be used?

100 ft. Use length of the longer of the vent

(30 M) or air inlet piping system

Measure the required linear length of air inlet and

vent pipe; insert the longest of the two here

Add equiv length of (3) 900-long-radius elbows

(use the highest number of elbows for either the

vent or inlet pipe)

Add equiv length of (2) 450-long-radius elbows

(use the highest number of elbows for either the

vent or inlet pipe)

Add equiv length of factory concentric vent term

Add correction for flexible vent pipe, if any

Total Equivalent Vent Length (TEVL)

Maximum Equivalent Vent Length (MEVL)

Is TEVL less than MEVL?

3 x

0 x

3ft 9ft.

(0.9 M) (2.7 M)

9 M x 3.3 ft/M

20ft

1.8 x (6.1 M)

Maximum Equivalent Vent Length (MEVL)

Is TEVL less than MEVL?

Oft.

(0 M)

30 ft.

(9 M)

36 ft.

(11 M)

175 ft.

(53 M)

127 ft.

(38.7 M)

250 ft.

(76.2 M)

YES

From Vent Manufacturer's instructions

Add all of the above lines

For 2" pipe from Table 14

Therefore, 60ram pipe may NOT be

used; try 80ram

For 3" pipe from Table 14

Therefore, 80ram pipe MAY be used

440 01 4201 03 Specifications subject to change without notice. 51

Table16 MAXIMUM EQUIVALENT VENT LENTH - Feet (Meters)

Note: Maximum Equivalent Vent Length (MEVL) does NOT include elbows or terminations.

Use DEDUCTIONS FROM MEVL -Table 15 to determine allowable vent length for each application.

Note: Vent sizing for Canadian installations over 4500 ft. (1370 M) above sea level are subject to acceptance

Altitude

FT(M) Unit Size

by the local authorities having jurisdiction.

DIRECT VENT (2-PIPE) AND VENTILATED COMBUSTION AIR

Vent Pipe Diameter

1-1/2 2 2-1/2

(10.7) (33.8) (60.4)

(7.0) (25.9) (44.5)

(12.2) (27.7)

60,000 35 111 198 (67.4)

4501 to 5000 80,000 23 85 146 (59.4) 216 (65.8)

(1370 to 1524) 100,000 40 9t (61.0) 222 (67.7)

120,000 (24.4) 211 (64.3)

60,000 37 (11.3) 103 (31.4) 186 (56.7) (83.1)

5001 to 6000 80,000 22 (6.7) 76 (23.2) 137 (41.8) (55.8) 200 (61.0)

(1524 to 1829) 100,000 33 (10.1) 85 (25.9) (57.3) 208 (63.4)

120,000 (22.6) 199 (60.7)

60,000 35 (10.7) 96 (29.3) 174 (53.0) (59.1)

6001 to 7000 80,000 20 (6.1) 71 (21.6) 120 (36.6) (52.1) 185 (56.4)

(1829 to 2134) 100,000 31 (9.4) 79 (24.1) (54.3) 195 (59.4)

120,000 (20.7) 187 (57.0)

60,000 32 (9.8) 89 (27.1) 163 (49.7) (55.2)

7001 to 8000 80,000 18 (5.5) 66 (20.1) 120 (36.6) (48.5) 170 (51.8)

(2134 to 2438) 100,000 29 (8.8) 73 (22.3) (50.9) 182 (55.5)

120,000 (18.9) 175 (53.3)

60,000 30 (9.1) 82 (25.0) 152 (46.3) (51.2)

8001 to 9000 80,000 17 (5.2) 62 (18.9) 111 (33.8) (45.1) 156 (47.5)

(2438 to 2743) 100,000 27 (8.2) 67 (20.4) (47.9) 170 (51.8)

120,000 (17.1) 164 (50.0)

60,000 27 (8.2) 76 (23.2) 142 (43.3) (47.5)

9001 to 10,000 80,000 15 (4.6) 57 (17.4) 103 (31.4) (41.8) 142 (43.3)

(2743 to 3048) 100,000 24 (7.3) 62 (18.9) (44.8) 157 (47.9)

120,000 (15.5) 153 (46.6)

221

195

2OO

2O7

183

188

194

171

178

181

159

167

168

148

157

156

137

147

NOTES:

1. Use only the vent pipe sizes shown for each furnace. It is NOT necessary to choose the smallest diameter pipe possible for

venting.

2. NA = Not allowed. Pressure switch will not close, or flame disturbance may result.

3. Vent sizing for Canadian installations over 4500 ft. (1370 m) above sea level are subject to acceptance by local authorities

having jurisdiction.

4. Size both the combustion air and vent pipe independently, then use the larger size for both pipes.

5. Assume two 45 ° degree elbows equal one 90 ° degree elbow. Wide radius elbows are desirable and may be required in some

cases.

6. Elbow and pipe sections within the furnace casing and at the vent termination should not be included in vent length or elbow

count.

7. The minimum pipe length is 5 (1.5) linear feet (meters) for all applications.

8. Use 3-in (76 mm) diameter vent termination kit for installations requiring a 4-in (102 mm) diameter pipe.

52 Specifications subject to change without notice. 440 01 4201 03

Table17

(F/G)9MAC

Max, Heat

Input

Maximum Allowable Exposed Vent Lengths in Unconditioned Space

Maximum Length of Uninsulated and Insulated Vent Pipe-Ft (M)

No Insulation 3/8-in. (9.5 mm) 1/2-in. (12.7 mm)

Pipe Length Pipe Diameter-inches (mm) Pipe Diameter-inches (mm) Pipe Diameter-inches (mm)

in Ft. & M 1.5 2.0 2.5 3.0 4.0 1.5 2.0 2.5 3.0 4.0 1.5 2.0 2.5 3.0 4.0

Winter

Design

Temp °F (°C)

20 (-10)

0 (-2O)

-20 (-3O)

-40 (-4O)

Ft,

Ft.

60,000 Ft.

Ft.

(38) (51) (64) (76) (102) (38) (51) (64) (76) (102) (38) (51) (64) (76) (102)

34.0 29.0 28.0 23.0 N/A 55.0 88.0 79.0 69.0 N/A 55.0 104.0 93.0 81.0 N/A

10.4 8.8 8.5 7.0 N/A 16.8 26.8 24.1 21.0 N/A 16.8 31.7 28.3 24.7 N/A

14.0 9.0 7.0 0.0 N/A 55.0 49.0 43.0 34.0 N/A 55.0 60.0 52.0 42.0 N/A

4.3 2.7 2.1 0.0 N/A 16.8 14.9 13.1 10.4 N/A 16.8 18.3 15.8 12.8 N/A

5.0 0.0 0.0 0.0 N/A 41.0 32.0 26.0 18.0 N/A 50.0 40.0 33.0 24.0 N/A

1.5 0.0 0.0 0.0 N/A 12.5 9.8 7.9 5.5 N/A 15.2 12.2 10.1 7.3 N/A

0.0 0.0 0.0 0.0 N/A 30.0 21.0 16.0 8.0 N/A 37.0 28.0 22.0 13.0 N/A

0.0 0.0 0.0 0.0 N/A 9.1 6.4 4.9 2.4 N/A 11.3 8.5 6.7 4.0 N/A

Ft. 34.0 29.0 28.0 23.0 N/A 55.0 88.0 79.0 69.0 N/A 55.0 104.0 93.0 81.0 N/A

20 (-10) M 10.4 8.8 8.5 7.0 N/A 16.8 26.8 24.1 21.0 N/A 16.8 31.7 28.3 24.7 N/A

Ft. 14.0 9.0 7.0 0.0 N/A 55.0 49.0 43.0 34.0 N/A 55.0 60.0 52.0 42.0 N/A

0 (-20) M 4.3 2.7 2.1 0.0 N/A 16.8 14.9 13.1 10.4 N/A 16.8 18.3 15.8 12.8 N/A

60,600 Ft. 5.0 0.0 0.0 0.0 N/A 41.0 32.0 26.0 18.0 N/A 50.0 40.0 33.0 24.0 N/A

-20 (-30) M 1.5 0.0 0.0 0.0 N/A 12.5 9.8 7.9 5.5 N/A 15.2 12.2 10.1 7.3 N/A

Ft. 0.0 0.0 0.0 0.0 N/A 30.0 21.0 16.0 8.0 N/A 37.0 28.0 22.0 13.0 N/A

-40 (-40) M 0.0 0.0 0.0 0.0 N/A 9.1 6.4 4.9 2.4 N/A 11.3 8.5 6.7 4.0 N/A

Ft. 35.0 39.0 39.0 33.0 25.0 35.0 118.0 107.0 92.0 76.0 35.0 130.0 125.0 109.0 90.0

20 (-10) M 10.7 11.9 11.9 10.1 7.6 10.7 36.0 32.6 28.0 23.2 10.7 39.6 38.1 33.2 27.4

Ft. 22.0 16.0 14.0 7.0 0.0 35.0 69.0 60.0 49.0 35.0 35.0 83.0 72.0 60.0 45.0

0 (-20) M 6.7 4.9 4.3 2.1 0.0 10.7 21.0 18.3 14.9 10.7 10.7 25.3 21.9 18.3 13.7

80,000 Ft. 11.0 5.0 2.0 0.0 0.0 35.0 46.0 39.0 29.0 16.0 35.0 57.0 48.0 37.0 23.0

-20 (-30) M 3.4 1.5 0.6 0.0 0.0 10.7 14.0 11.9 8.8 4.9 10.7 17.4 14.6 11.3 7.0

Ft. 4.0 0.0 0.0 0.0 0.0 35.0 33.0 26.0 17.0 4.0 35.0 41.0 34.0 24.0 11.0

-40 (-40) M 1.2 0.0 0.0 0.0 0.0 10.7 10.1 7.9 5.2 1.2 10.7 12.5 10.4 7.3 3.4

Ft. N/A 47.0 47.0 41.0 32.0 N/A 50.0 110.0 112.0 93.0 N/A 50.0 110.0 132.0 110.0

20(-10) M N/A 14.3 14.3 12.5 9.8 N/A 15.2 33.5 34.1 28.3 N/A 15.2 33.5 40.2 33.5

Ft. N/A 21.0 19.0 12.0 1.0 N/A 50.0 74.0 61.0 45.0 N/A 50.0 89.0 74.0 57.0

0 (-20) M N/A 6.4 5.8 3.7 0.3 N/A 15.2 22.6 18.6 13.7 N/A 15.2 27.1 22.6 17.4

100,000 Ft. N/A 8.0 6.0 0.0 0.0 N/A 50.0 49.0 38.0 23.0 N/A 50.0 60.0 48.0 32.0

-20 (-30) M N/A 2.4 1.8 0.0 0.0 N/A 15.2 14.9 11.6 7.0 N/A 15.2 18.3 14.6 9.8

Ft. N/A 1.0 0.0 0.0 0.0 N/A 42.0 34.0 24.0 10.0 N/A 50.0 43.0 32.0 18.0

-40 (-40) M N/A 0.3 0.0 0.0 0.0 N/A 12.8 10.4 7.3 3.0 N/A 15.2 13.1 9.8 5.5

Ft. N/A N/A 15.0 49.0 40.0 N/A N/A 15.0 100.0 111.0 N/A N/A 15.0 100.0 131.0

20 (-10) M N/A N/A 4.6 14.9 12.2 N/A N/A 4.6 30.5 33.8 N/A N/A 4.6 30.5 39.9

Ft. N/A N/A 15.0 17.0 6.0 N/A N/A 15.0 75.0 57.0 N/A N/A 15.0 90.0 70.0

0 (-20) M N/A N/A 4.6 5.2 1.8 N/A N/A 4.6 22.9 17.4 N/A N/A 4.6 27.4 21.3

120,000 Ft. N/A N/A 10.0 2.0 0.0 N/A N/A 15.0 48.0 32.0 N/A N/A 15.0 59.0 42.0

-20 (-30) M N/A N/A 3.0 0.6 0.0 N/A N/A 4.6 14.6 9.8 N/A N/A 4.6 18.0 12.8

Ft. N/A N/A 1.0 0.0 0.0 N/A N/A 15.0 32.0 17.0 N/A N/A 15.0 41.0 25.0

-40 (-40) M N/A N/A 0.3 0.0 0.0 N/A N/A 4.6 9.8 5.2 N/A N/A 4.6 12.5 7.6

International Comfort Product, LLC • PO Box 128 •

Lewisburg, TN 37091 USA

440 01 4201 03 Specifications subject to change without notice. 53

ICP F9MAC0601714A1 User Manual GAS FURNACE Manuals And Guides 1307183L

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