ICP Furnace/Heater, Gas Manual L0910209

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

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90+ GAS FURNACE DIRECT OR NON-DIRECT VENT

Category IV Furnace

*9aPT Two-Stage Heating & Supports

*9MPV 92% Variable Speed, Two-Stage Heating & Supports

Two-Stage Cooling Units

*9MVX 95% Variable Speed, Two-Stage Heating & Supports

Two-Stage Cooling Units

* Denotes Brands (C, H, T)

SAFETY CONSIDERATIONS

Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock, or other

conditions which may cause death, personal injury, or property damage. Consult a qualified installer, service agency, or your

distributor or branch for information or assistance. The qualified installer or agency must use factory-authorized kits or accessories

when modifying this product. Refer to the individual instructions packaged with the kits or accessories when installing.

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

Have fire extinguisher available. Read these instructions thoroughly and follow all warnings or cautions included in literature and

attached to the unit. Consult local building codes, the current editions of the National Fuel Gas Code (NFCG) NFPA 54/ANSI

Z223.1, and the National Electrical Code (NEC) NFPA 70.

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

Installation Codes, and Canadian Electrical Code CSA C22.1.

Recognize safety information. This is the safety-alert symbol z_. When you see this symbol on the unit and in instructions or

manuals, be alert to the potential for personal injury. Understand these signal words; DANGER, WARNING, and CAUTION. These

words are used with the safety-alert symbol. DANGER identifies the most serious hazards which will result in severe personal

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

practices which may result in minor personal injury or product and property damage. NOTE is used to highlight suggestions which

will result in enhanced installation, reliability, or operation.

Before puchasiag this appl{ance,

read important energy cost end

efficiency information available

from your retaJle£

International Comfort Products, LLC

Lewisburg, TN 37091 USA

1. Safe Installation Requirements .................. 5

2. Installation ................................. 6

3. Combustion & Ventilation Air ................... 10

4. Vent & Combustion Air Piping ................... 14

5. Concentric Vent Termination .................... 31

6. Gas Supply and Piping ........................ 34

7. Electrical Wiring ............................. 39

Table of Contents

INSTALLER: Affix these instructions

on or adjacent to the furnace.

CONSUMER: Retain these

instructions for future reference.

8. DuctworkandFilter ......................... 41

9. ChecksandAdjustments ..................... 44

10. FurnaceMaintenance........................ 48

11. Sequenceof Operation& Diagnostics*9MPT ...... 49

12. WiringDiagram*9MPT ....................... 51

13. Sequenceof Operation&Diagnostics*9MPV,*9MVX 52

14. WiringDiagram*9MPV,*9MVX ................. 54

15. ThermostatWiringGuide ..................... 55

ELECTRIC SHOCK HAZARD

Failure to follow this warning

could result in personal injury

and/or death.

Turn Off All Power Before

Servicing.

CARBON MONOXIDE POISONING AND FIRE

HAZARD

Failure to follow this warning could result in

personal injury, death, and/or property dam-

age.

This furnace is not designed for use in mobile

homes, trailers or recreational vehicles.

Portions of the text and tables are reprinted from NFPA 54 /ANSi Z223,1-2006(c_, 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.

Specifications aresubject to change without notice. 440 01 202401 Feb 2009

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

440 01 202401 Specificationsare subject to changewithout notice. 2

START-UP CHECK SHEET

For PSC Models *9MPT

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

Date of Start-Up:

Dealer Name:

Address:

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

Calculated Input (BTU) Rate: (See Checks

Adjustments Section).

Heating Check

Measured Line Pressure During High Heat:

Measured Manifold Pressure: High Heat

and

Phone:

Owner Name:

Address:

Low Heat

Temperature of Supply Air: High Heat

Low Heat

City, State(Province), Zip or Postal Code: Temperature of Return Air:

Temperature Rise (Supply - Return)' High Heat __

Model Number:

Serial Number:

Setup Checks

Check the box when task is complete.

All Electrical Connections Tight? [U

Have hoses been relocated for furnace U/D/H

application? [U

Condensate Drain Connected? [U

Condensate Drain Trapped? [U

Manual Gas Shut-off Upstream of Furnace/Drip Leg [U

Low Heat

In Rise Range (see furnace rating plate)?

Static Pressure (Ducts) High Heat:

The Blower Speed Tap used for:

Optional Check:

Cooling Check

Temperature of Supply Air:

Temperature of Return Air:

Temperature Difference:

Static Pressure (Ducts) Cooling:

Supply

Return

High Heat

Low Heat

CO?

CO2?

Supply

Gas Valve turned ON? Return

Type of Gas: Natural: [U

Filter Type and Size:

Propane: [U The Blower Speed Tap used for:

Dealer Comments:

Cooling

Shade in Heating Fan "Time OFF" Setting and Thermostat

Type setting:

3 Specifications are subject to change without notice, 440 01 202401

START-UP CHECK SHEET

For Variable Speed Models *9MPV, *9MVX

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

Date of Start-Up:

Dealer Name:

Address:

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

Phone:

Owner Name:

Address:

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

Model Number:

Serial Number:

Setup Checks

Check the box when task is complete.

All Electrical Connections Tight? Lj

Have hoses been relocated for furnace U/D/H

application? Lj

Condensate Drain Connected? Lj

Condensate Drain Trapped? Lj

Manual Gas Shut-off Upstream of Furnace/Drip Leg Lj

Gas Valve turned ON?

Type of Gas: Natural: Lj Propane: Lj

Filter Type and Size:

Shade in Final Furnace Settings Below:

123 ] 2345 678

lu o o nI ,11 I-_ AC/HPEfficiencySLOWER ADJUST HP Comfort

HP mode

select

Calculated Input (BTU) Rate: (See Checks and

Adjustments Section).

Heating Check

Measured Line Pressure During High Heat:

Measured Manifold Pressure: High Heat

Temperature of Supply Air:

Temperature of Return Air:

Low Heat

High Heat

Low Heat

Temperature Rise (Supply - Return)' High Heat __

Low Heat

In Rise Range (see furnace rating plate)?

Static Pressure (Ducts) High Heat: Supply

Optional Check:

Cooling Check

Temperature of Supply Air:

Temperature of Return Air:

Temperature Difference:

Static Pressure (Ducts) Cooling:

Return

CO?

CO2?

Supply

Return

Dealer Comments:

440 01 202401 Specificationsare subject to changewithout notice. 4

1. Safe Installation Requirements

FIRE, EXPLOSION, AND CARBON MONOXIDE

POISONING HAZARD

Improper adjustment, alteration, service,

maintenance or installation could cause personal

injury, death and/or property damage.

Installation or repairs made by unqualified persons

could result in hazards to you and others.

Installation MUST conform with local codes or, in

the absence of local codes, with codes of all

governmental authorities having jurisdiction.

The information contained in this manual is

intended for use by a qualified service agency that

is experienced in such work, is familiar with all

precautions and safety procedures required in

such work, and is equipped with the proper tools

and test instruments.

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

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

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

proper installation.

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

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

exchanger and cause dangerous operation. (Furnaces

can be converted to Propane gas with approved kit.)

• Install this furnace only in a location and position as

specified in "Installation" of these instructions.

• Provide adequate combustion and ventilation air to the

furnace as specified in "Combustion and Ventilation Air" of

these instructions.

Combustion products must be discharged outdoors.

Connect this furnace to an approved vent system only, as

specified in "Combustion and Ventilation Air, Horizontal

Venting and Masonry Chimney Venting" of these

instructions.

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

commercially available soap solution made specifically for

the detection of leaks to check all connections, as

specified in "Gas Supply and Piping, Final Gas Piping

Check" of these instructions.

• Always install furnace to operate within the furnace's

intended temperature-rise range with a duct system which

has an external static pressure within the allowable range,

as specified in "Technical Support Manual" of these

instructions. See furnace rating plate.

• 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 a duct(s) sealed to the furnace casing and terminating

outside the space containing the furnace.

• A gas-fired furnace for installation in a residential garage

must be installed as specified in "Installation

Requirements" of these instructions.

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

buildings or structures under construction.

• This furnace is NOT approved for installation in

mobile homes, trailers or recreation vehicles,

• Unit MUST be installed so electrical components are

protected from direct contact with water.

Safety Rules

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

service providing it is properly installed and maintained. However,

abuse and/or improper use can shorten the life of the unit and

create hazards for you, the owner.

A. The U.S. Consumer Product Safety Commission encourages

installation of carbon monoxide alarms. There can be various

sources of carbon monoxide in a building or dwelling. The

sources could be gas-fired clothes dryers, gas cooking

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

fireplaces.

Carbon monoxide can cause serious bodily injury and/or

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

gas produced when fuel is not burned completely or when the

flame does not receive sufficient oxygen.

Therefore, to help alert people of potentially dangerous carbon

monoxide levels, you should have a commercially available

carbon monoxide alarm that is listed by a nationally

recognized testing agency in accordance with Underwriters

Laboratories Inc. Standard for Single and Multiple Station

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

Residential Carbon Alarming Devices installed and

maintained in the building or dwelling concurrently with the

gas-fired furnace installation (see Note below). The alarm

should be installed as recommended by the alarm

manufacturer's installation instructions.

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

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

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

people of potentially dangerous fire or smoke, you should have

fire extinguisher and smoke alarms listed by Underwriters

Laboratories installed and maintained in the building or

dwelling (see Note below).

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

and makes no representations regarding any brand or type

of alarms.

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

do the following:

Thoroughly read this manual and labels on the unit. This

will help you understand how your unit operates and the

hazards involved with gas and electricity.

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

Immediately call a qualified service technician to inspect the

unit and to replace any part of the control system and any gas

control which has been under water.

3. Never obstruct the vent grilles, or any ducts that provide

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

and ventilation of flue gases.

• Seal around supply and return air ducts.

• Install correct filter type and size.

440 01 202401 Specificationsare subject to changewithout notice. 5

FrozenWaterPipeHazard

WATER DAMAGE TO PROPERTY HAZARD

Failure to protect against the risk of freezing may

result in property damage,

Do not leave your home unattended for long periods

during freezing weather without turning off water

supply and draining water pipes or otherwise

protecting against the risk of frozen pipes and

resultant damage.

Your furnace is designed solely to provide a safe and comfortable

living environment. The furnace is NOT designed to ensure that

water pipes will not freeze. It is equipped with several safety

devices that are designed to turn the furnace off and prevent it from

restarting in the event of various potentially unsafe conditions.

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

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

If the structure will be unattended during cold weather you should

take these precautions.

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

lines if possible and add an antifreeze for potable water to

drain traps and toilet tanks. Open faucets in appropriate

areas.

-or-

Have someone check the structure frequently during cold

weather to make sure it is warm enough to prevent pipes

from freezing. Instruct them on a service agency to call to

provide service, if required.

-or-

Install a reliable remote sensing device that wilt notify

somebody of freezing conditions within the home.

Winter Shutdown

If you go away during the winter months and do not leave the heat

on in your home, the plastic transition box and the condensate trap

on the furnace must be protected from freeze damage.(See

Figure 11 trough Figure 20)

1. Disconnect the 5/8" (15.9mm) OD rubber hose from the vent

drain fitting that is located downstream of the combustion

blower. Insert a funnel into the hose and pour four(4) ounces

of sanitary type (RV) antifreeze into the condensate trap.

Reconnect the 5/8" (15.9mm) OD rubber hose to the stub on

the vent drain fitting. Secure with the hose clamp.

2. Disconnect the 3/4" (19.1mm) OD rubber hose from the

condensate trap. Insert a funnel into the hose and and pour

four(4) ounces of sanitary type (RV) antifreeze into the

plastic Transition box. Squeeze the hose together near the

end and quickly reconnect the 3/4" (19.1mm) OD rubber

hose to the stub on the condensate trap. Secure with the

hose clamp.

When you return home, your furnace will be ready to start, as it is

not necessary to drain the antifreeze from the furnace.

2. Installation

CARBON MONOXIDE POISONING HAZARD

Failure to properly vent this furnace or other

appliances could result in personal injury or death.

This furnace can NOT be common vented or

connected to any type B, BW or L vent or vent

connector, nor to any portion of a factory-built or

masonry chimney. If this furnace is replacing a

previously common-vented furnace, it may be

necessary to resize the existing vent and chimney

to prevent oversizing problems for the other

remaining appliance(s). See Venting and

Combustion Air Check in the Combustion &

Ventilation Air section. This furnace MUST be

vented to the outside.

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

furnace where the old one was. Choose the location or

evaluate the existing location based upon the minimum

clearance and furnace dimensions (Figure 4).

CARBON MONOXIDE POISONING HAZARD.

Failure to follow this warning could result in

personal injury or death.

Do NOT operate furnace in a corrosive atmosphere

containing chlorine, fluorine or any other damaging

chemicals, which could shorten furnace life.

Refer to Combustion & Ventilation Air section,

Contaminated Combustion Air for combustion air

evaluation and remedy.

InstallationPositions

This furnace can be installed in an upflow, horizontal (either left or

right) or downflow airflow position. DO NOT install this furnace on

its back. For the upflow position, the return air ductwork can be

attached to either the left or right side panel and/or the bottom. For

horizontal and downflow positions, the return air ductwork must be

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

attached to the back of the furnace.

Location and Clearances

Refer to Figure 1 or Figure 2 for typical installation and

basic connecting parts required. Refer to Figure 3 for

typical horizontal direct vent installation and basic

connecting parts required. Supply and return air plenums

and duct are also required.

FROZEN AND BURST WATER PIPE HAZARD

Failure to protect against the risk of freezing may

result in property damage.

Special precautions MUST be made if installing

furnace in an area which may drop below freezing.

This can cause improper operation or damage to

equipment. If furnace environment has the

potential of freezing, the drain trap and drainline

must be protected. The use of electric heat tape or

RV antifreeze is recommended for these

installations. (See "Condensate Trap Freeze

Protection Section")

6 Specifications are subject to changewithout notice. 440 012024 01

Typical Upflow Installation

VentPipesMUST be

supported

Horizontallyand

Vertically

Aluminumornon-rustingshieldrecommended.

*8.......... (SeeVentTerminationShieldingfordimensions)

tzu_ zmm] M n _ '

20' t6imi Max....................................................................................................................................................................;,\ /Couplingonendsof

\" J " _i,_ /_' exhaustppe Tota

in same ,,

J._ InletPipe pipe&couplingout-

atmospheric ...._ (not usedon

zone I_i. ../side structure = 8"

%SinglePipe (203.2mm)

_" model) /

"8" i203.2mm)Min.

20' (6.1m)Max.

insameatmosphericzone

* Increaseminimumfrom8"(203.2mm)to18"(203.2mm)forcoldclimates(sus-

tainedtemperatures0°F(-17° C)andbelowfor24ormoreconsecutivehours).

25-23-33

Typical Downflow Installation

SeeVentTermination

ShieldinginVentSection.

\ .restrainvent

InletPipe ,Y?]_ ] "8" (20&2mm)Min. \, xx

(not usedon_ i 20' (6.1m) Max. in \, //

Single Pipe i_i>_,!_ same atmospheric zone /'

model)

ii"

VentPipesMUST i _ ;i

besupportedHorizon-i

tally and Vertically i i_ i i

z_i

Coupling on inside

andoutsideofwallto

pipe

8" Min.

"8" (203.2mm)Min

20';:(6.1m)Max.

in same

/?ospheric zone

:;Discharge i

_r y

* Increaseminimumfrom8"(203.2mm)to18" (203.2mm)forcoldclimates(sus-

tainedtemperatures0°F(-17°C)andbelowfor24ormoreconsecutivehours).

25-23-33a

InstallationRequirements

1. Install furnace level.

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

buildings or structures under construction.

3. Install furnace as centralized as practical with respect to the

heat distribution system.

4. Install the vent pipes as short as practical, and in

accordance to these instructions. (See Vent and

Combustion Air Piping section).

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

clearance of 24" (609.6mm) required and 30" (762mm)

recommended for access to the burner, controls and filter.

See clearance requirements in Figure 4.

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

wet at times.

7. For downflow installations, non combustible subbase must

be used under the furnace unless installation is on a non

combustible floor surface. This requirement applies even

when a coil box or cabinet is used.

8. For horizontal installations, line contact is permissible only

between lines formed by intersection of back and two sides

of furnace jacket, and building joists, studs or framing.

9. Residential garage installations require:

• Burners and ignition sources installed at least 18"

(457.2mm) above the floor.

• Located or physically protected from possible damage by

a vehicle.

10. Local codes may require a drain pan under the entire

furnace and condensate trap when the furnace is installed in

attic application.

This furnace may be used for construction heat provided that all the

following conditions are met:

• The furnace is permanently installed with all electrical

wiring, piping, venting and ducting installed according to

these installation instructions. A return air duct is provided,

sealed to the furnace casing, and terminated outside the

space containing the furnace. This prevents a negative

pressure condition as created by the circulating air blower,

causing a flame rollout and/or drawing combustion products

into the structure.

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

wired" to provide heat continuously to the structure without

thermostatic control.

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

minimize the corrosive effects of adhesives, sealers and

other construction materials. It also prevents the

entrainment of drywall dust into combustion air, which can

cause fouling and plugging of furnace components.

• The temperature of the return air to the furnace is

maintained between 55° F (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 firing rate has been set to the

rating plate value.

• The filters used to clean the circulating air during the

construction process must be either changed or thoroughly

cleaned prior to occupancy.

• The furnace, ductwork and filters are cleaned as necessary

to remove drywall dust and construction debris from all

HVAC system components after construction is completed.

• After construction is complete, verify furnace operating

conditions including ignition, input rate, temperature rise

and venting according to these instructions.

CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in

personal injury or death.

Do NOT operate furnace in a corrosive atmosphere

containing chlorine, fluorine or any other damaging

chemicals, which could shorten furnace life.

Refer to Combustion & Ventilation Air section,

Contaminated Combustion Air for combustion air

evaluation and remedy.

FurnaceInstallationConsiderations

The installation ofthe furnace for a given application will dictate the

position ofthe furnace, the airflow, ductwork connections, vent and

combustion air piping. Consideration must be given to the

following:

440 01 202401 Specificationsare subject to changewithout notice. 7

Condensate Trap and Drain Lines

The supplied condensate trap must be attached to the furnace side

panel on either the left or right side. For horizontal installations, the

drain trap is vertically attached to the side panel below the furnace.

A minimum clearance of 6" (152.4mm) below the furnace is

required for the condensate trap. Downward slope of the

condensate drain line from the condensate trap to the drain

location must be provided. Adequate freeze protection of the drain

trap and the drain line must be provided. See "Condensate Drain

Trap" section for further details.

Leveling

Proper leveling of the furnace must be provided to insure proper

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

level to within 1/4" (6.4mm) from front to back and from side to side

for upflow and downflow installations or top to bottom for horizontal

installations.

Vent and CombustionAir Connections

For venting information literature, call 931.270.4100 with the

complete model and serial number of the furnace.

Special Venting Requirements for Installations in Canada

Installation in Canada must conform to the requirements of CSA

B149 code. Vent systems must be composed of pipe, fittings,

cements, and primers listed to ULC $636. The special vent

fittings and accessory concentric vent termination kits and

accessory external drain trap have been certified to ULC $636

for use with those 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 -

IPEX System 636, PVC/CPVC Primer, Purple Violet for Flue

Gas Venting and IPEX System 636(1)TM,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 CSA B149 is dependent upon full

compliance with all installation instructions. Under this

standard, it is recommended that the vent system be checked

once a year by qualified service personnel.

The authority having jurisdiction (gas inspection authority,

municipal building department, fire department, etc) should be

consulted before installation to determine the need to obtain a

permit.

Consignes sp6ciales pour rinstallation de ventillation au

Canada

L'installation faite au Canada dolt se conformer aux exigences

du code CSA B149. Ce syst_me de ventillation dolt se

composer de tuyaux, raccords, ciments et appr_ts conformes

au ULC $636. La tuyauterie de ventillation des gaz, ses

accessoires, le terminal concentrique mural ainsi que

I'ensemble du drain de condensat exterieur ont et6 certifies

ULCS 636 pour I'application des composantes IPEX PVC qui

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

doivent _tre du m_me manufacturier que le syst_me de

ventillation - IPEX Systeme 636, Appr_t PVC/CPVC. Mauve

Violette pour conduit en evacuation des gaz et IPEX Systeme

636(1)TM,ciment pour PVC pour conduit en evacuation des gaz,

6val'u_ CLASSE IIA, 65 deg. C. doit _tre utilise avec ce

systeeme d'evacuation - ne pas melanger I'appr_t et le ciment

d'un manufacturier avec le syst_me de ventillation d'un autre

manufacturier. 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.

L'operation securitaire, tel que definit par ULC $636, du

systeme de ventilation est base sur les instructions d'installation

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 CSA B419 est directement relie & I'installation

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'instatlation afin de determiner si un permis

est requis.

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

On the Dual Certified furnace, the vent and combustion air pipes

attach to the furnace through the top panel for the upflow and

horizontal installations. For the downflow installation, the vent and

combustion air pipes attach to the furnace through the alternate

locations on the furnace side panels.

Note: On the Direct Vent furnace, the vent pipe attaches to the

furnace through the side panels. The combustion air pipe attaches

to the top panel or to the alternate location on the side panel.

On the Single Pipe furnace, the vent pipe attaches to the furnace

through the furnace side panels.

Note: Repositioning of the combustion blower is required for the

vent pipe connection to the furnace through the "right side" panel.

See "Vent and Combustion Air Piping" section for further details.

HorizontalFurnaceInstallation

Typical Horizontal Installation

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

crawl space, alcove, or suspended from a ceiling ina basement or

utility room (See Figure 3). Do not install furnace on its back or in

the reverse airflow positions as safety control operation will be

adversely affected.

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

space or the rafters in an attic, it is necessary to use steel pipe

straps or an angle ironframe to rigidly attach the furnace to prevent

movement. These straps should be attached to the furnace bottom

side with sheet metal screws and to the rafters or joists with bolts.

The preferred method is to use an angle iron frame bolted to the

rafters or joists.

Ifthe furnace is to be installed in a crawl space, consult local codes.

A suitable concrete pad or blocks are recommended for crawl

space installation on the ground.

NOTE: 6" (152.4mm) bottom clearance required for condensate

trap.

24" (609.6mm) inches between the front of the furnace and

adjacent construction or other appliances MUST be maintained for

service clearance. [30" (762mm) inches is required to remove

furnace].

Keep all insulating materials clear from Iouvered door. Insulating

materials may be combustible.

The horizontal furnaces may be installed directly on combustible

wood flooring or supports as long as all required furnace

clearances are met. See Figure 3.

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

other combustible material other than wood flooring or supports.

For horizontal installation over a finished living space. A field

fabricated auxiliary drain pan with drain pipe is required to prevent

damage by overflow due to blocked condensate drain.

8 Specifications are subject to changewithout notice. 440 012024 01

Dimensions and Clearances

.........Fi.........

.................................................................................i i i .......A,R,NT KE

TOP ...................................I

• i

LEFTSIDE +8611116,iELECTRICAL

[ ii775) i 11

-_L__,_ '_/

TRAP(COU.TE+LO ...............................

GAS ........................i ::

VENT ............. \/:' i / 1_11/

+i i lS

ARNTAKE (KO) S _ .................i..............................i / (347'7)

(ALTERNATE) .... 4Y£i16 _J! i .ii+,;_ 11/1L

TRAP(KO) (122.2) ' +; b _ !3::P) i '%_

UPFLOW/HORIZONTAL.... _+ +" +' t'_!8 + t_297 '

...... THERMOSTAT f" i..........7.......i 28314 i

21/_ _ 177,8 i(730.3) :

i/!4 Vt6t _

i J 611.2)

i17=/6 i 1913116

13114 i i (439 7) i (603.2)

(336.6) ; i 111/1 i

j(KO) 42,9 t

+; .................+++ ++ _ i+ :

,,21618 ++ 47/8., +

t7/8 | (849,3)24 (12331i

(47,6) (609,6)

D_i

-A+=i

FRONT

Drawing is representative,

but some models may vary

ALL DIMENSIONS: in (mm)

Unit

Capacity

*RMPT050F12

*RMPT075F14

*9MPT100J16

*RMPT125L20

*9MPV050F12

*9MPV075F12

*RMPVl00J20

*RMPV125L20

*9MVX040F12

*9MVX060F12

*RMVX080J20

*RMVX100L20

* Denotes Brand

Cabinet Bottom

AB c D

19t/8 175/8 2t/8 143/4

(485.8} (477.7) (54) (374,7)

191/8 17518 21/8 143/4

(485.8) (477.7) (54) (374,7)

223/4 21114 115/16 18314

(577.9) (539.8) (49.2) (476,3)

241/2 23 7/16 23

(522.3) (584.2) (11.1) (584,2)

191/8 17518 21/8 14314

(485.8) (447.7) (54) (374,7)

191/8 17518 21/8 143/4

(485.8) (447.7) (54) (374,7)

223/4 21114 115/16 18314

(577.9) (539.8) (49.2) (476,3)

241/2 23 7/16 23

(522.3) (584.2) (11.1) (584,2)

191/8 17518 21/8 14314

(485.8) (447.7) (54) (374,7)

191/8 17518 21/8 143/4

(485.8) (447.7) (54) (374,7)

223/4 21114 115/16 18314

(577.9) (539.8) (49.2) (476,3)

241/2 23 7/16 23

(522.3) (584.2) (11.1) (584,2)

Top

EFGH

43/8 4112 21/2 9112

(tt1,1) (tt4.3) (6&5) (241.3)

4318 4112 21/2 9112

(tt1,1) (tt4.3) (6&5) (241.3)

43/8 4t12 25/8 113/8

(tt1,1) (tt4.3) (56,7) (288.9)

43/8 4t/2 21/4 12114

(tt1,1) (tt4.3) (57,2) (311.2)

43/8 4t/2 21/2 9t/2

(tt1,1) (tt4.3) (5&5) (241.3)

43/8 4t/2 21/2 9t/2

(tt1,1) (tt4.3) (5&5) (241.3)

43/8 4t/2 25/8 113/8

(tt1,1) (tt4.3) (56,7) (288.9)

43/8 4t/2 21/4 12114

(tt1,1) (tt4.3) (57,2) (311.2)

43/8 4t/2 21/2 9t/2

(tt1,1) (tt4.3) (5&5) (241.3)

43/8 4t/2 21/2 9t/2

(tt1,1) (tt4.3) (5&5) (241.3)

43/8 4t/2 25/8 113/8

(tt1,1) (tt4.3) (56,7) (288.9)

43/8 4t/2 21/4 12114

(tt1,1) (tt4.3) (57.2) (311.2)

MINIMUM CLEARANCES TO COMBUSTIBLE

MATERIALS FOR ALL UNITS -in (mm)

REAR 0

FRONT (combustion air openings in 3" (76.2)

furnace and in structure)

Required For Service

ALL SIDES Of SUPPLY PLENUM

SIDES

VENT

TOP OF FURNACE

"30" (762mm)clearancerecommendedforfurnaceremoval.

Horizontalposition:Linecontactis permissibleonly between

linesformed byintersectionsof top andtwo sidesof furnace

jacket,and buildingjoists,studs orframing.

"24" (609.6)

1" (25.4)

NOTE: Evaporator "A" coil drain pan dimensions may

vary from furnace duct opening size. Always consult

evaporator specifications for duct size requirements.

Furnace is designed for bottom return or side return.

Return air through back of furnace is NOT allowed.

17/8

(47.6)

25-23-36b

181/2

(469,9)

/RIGHT SIDE

/TRAP(KO)

//_(COUNTERFLOW)

ELECTRICAL(KO)

AIRINTAKE (KO)

(ALTERNATE)

VENT (KO)

TRAP (KO)

UPFLOW/HORIZONTAL

21/41

THERMOSTAT(57.2)........................

GAS (KO)\

413116

(609.6)

13114

(336,6)

440 01 202401 Specificationsare subject to changewithout notice. 9

KnockOuts Hammer and Screwdriver Used

for Knockout

CUT HAZARD

Failure to follow this caution may result in

personal injury.

Sheet metal parts may have sharp edges or burrs.

Use care and wear appropriate clothing, safety

glasses and gloves when handling parts and

servicing furnaces.

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

Figure 5) directly to the knockout tie points or use a hammer inthe

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

sharp edges.

25-40-06

NOTE: If a knockout does not come out after two sharp blows, pull

and snip as needed to remove the knockout.

3. Combustion & Ventilation Air

For Single Pipe Installation

(Non-Direct Vent)

CARBON MONOXIDE POISONING HAZARD

Failure to provide adequate combustion and

ventilation air could result in personal injury or

death.

Use methods described here to provide

combustion and ventilation air.

Furnaces require ventilation openings to provide sufficient air for

proper combustion and ventilation of flue gases. All duct or

openings for supplying combustion and ventilation air must comply

with National Fuel Gas Code, NFPA54/ANSI Z223.1, 2006 (or

current edition) and applicable provisions of local building codes.

Note: The Combustion & Ventilation Air Section inthis document,

uses tables and information from the ANSI Z223.1/NFPA

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

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

National Fuel Gas Code, National Fuel Gas Code (NFGC),

ANSI Z223.1-2006/NFPA 54-2006 in the U.S.,

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

Canada, Natural Gas and Propane Installation Code

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

3. Applicable provisions of the local building code.

This furnace can NOT be common vented or connected to any type

B, BW or L vent or vent connector, nor to any portion of a

factory-built or masonry chimney. Multistory venting is NOT

permitted. If this furnace is replacing a previously common-vented

furnace, it may be necessary to resize the existing vent and

chimney to prevent oversizing problems for the other remaining

appliance(s). See "Venting and Combustion Air Check" in this

section. This furnace MUST be vented to the outside.

When the installation is complete, check that all appliances have

adequate combustion air and are venting properly. See Venting

And Combustion Air Check in "Gas Vent Installation" Section in this

manual.

OutdoorCombustionAir Method

A space having less than 50 cubic feet per 1,000 BTUH (4.8 cubic

meters per kW) input rating for all gas appliances installed in the

space requires outdoor air for combustion and ventilation.

Air Openingsand Connecting Ducts

1. Total input rating for all non direct vent gas appliances

MUST be considered when determining free area of

openings.

2. Connect ducts or openings directly to outside.

3. When screens are used to cover openings, they MUST be

no less than 1/4" (6.4mm) mesh.

4. The minimum dimension of rectangular air ducts MUST

NOT be less than 3" (76.2mm).

5. When sizing grille or louver, use the free area of opening. If

free area is NOT stamped or marked on grill or louver,

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

Confined SpaceInstallation

NOTE: A confined space is defined as an area with less than 50

cubic feet per 1,000 BTUH (4.8 cubic meters per kW) input rating

for all gas appliances installed in the area.

Requirements

1. Provide confined space with sufficient air for proper

combustion and ventilation of flue gases using horizontal or

vertical ducts or openings.

2. Figure6 illustrate how to provide combustion and

ventilation air. A minimum of two permanent openings, one

inlet and one outlet, are required.

a. One opening MUST commence within 12" (304.8mm) of

the floor and the second opening MUST commence

within 12" (304.8mm) of the ceiling.

b. Size openings and ducts per Table 1.

c. Horizontal duct openings require 1 square inch of free

area per 2,000 BTUH (11 cm2/kW) of combined input for

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

d. Vertical duct openings or openings directly

communicating with the outdoors require 1 square inch

of free area per 4,000 BTUH (5.5 cm2/kW) for combined

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

10 Specificationsare subject to changewithout notice. 440 012024 01

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

This installationNOTapprovedinCanada

Alternate InletAir (1)

Ga Ven

Air (1)

_rnacl

.__Gable Vent

fVentilated Attic_

OutletAir(1) Inlet

Air (2)

ou:

Air

SoffitVent

GasVent ........

MinimumOneInlet and One OutletAirSupply is Required

May be in anyCombinationShown

InletAir OpeningMust be Within12" (304.8mm)of floor

OutletAir OpeningMust be Within12" (304.8mm)of ceiling

(1) 1SquareInch per4000 BTUH

(2) 1SquareInch per2000 BTUH

3• One opening MUST be within 12" (304.8mm) of the floor

and the second opening within 12" (304.8mm) of the ceiling•

a. 1 sq. in of free area per 3,000 BTUH (7 cm2/kW) for

combined input of all gas appliances in the space (see

Table 1) and

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

in the space.

The opening shall commence within 12" (304.8mm) of the top of

the enclosure. Appliances shall have clearances of at least 1"

(25.4mm) from the sides and back and 6" (152.4mm) from the

front. The opening shall directly communicate with the outdoors or

shall communicate through a vertical or horizontal duct to the

outdoors or spaces (crawl or attic) that freely communicate with the

outdoors.

4. Size openings and ducts per Table 1.

a. Indoor openings that comply with the Indoor

Combustion Air Method below and

b. Outdoor openings located as required in the Outdoor

Combustion Air Method above and

5•

6•

c• Outdoor openings sized as follows.

1) Calculate the Ratio of all Indoor Space volume

divided by required volume for Indoor Combustion

Air Method.

2) Outdoor opening size reduction Factor is 1 minus

the Ratio in 1) above.

3) Minimum size of Outdoor openings shall be the size

required in Outdoor Combustion Air Method

above multiplied by reduction Factor.

Horizontal duct openings require 1 square inch of free area

per 2,000 BTUH of combined input for all gas appliances in

area (see Table 1).

Vertical duct openings or openings directly to outside

require 1 square inch of free area per 4,000 BTUH (5.5

cm2/kW) for combined input of all gas appliances in area

(see Table 1).

Free Area

MinimumFreeAreaRequiredfor EachOpeningorDucttoOutdoors

BTUH(kW) TwoHorizontalDucts SingleOpening TwoVerticalDuctsorOpenings RoundDuct

InputRating BTUH(kW) BTUH(kW) BTUH(kW) BTUH(kW)

sq.in./2,000(1cm2/.09) sq.in./3,000(1cm2/.135) sq.in./4,000(1cm2/.18) sq.in./4,000(6.5cm2/.18)

40,000(11.72) 20sq.in.(129cm2) 13.34sq.in.(86cm2) 10sq.in.(65cm2) 4" (101.6mm)

50,000(14.65) 25sq.in.(161cm2) 16.7sq.in.(108cm2) 12.5sq.in.(81cm2) 4" (101.6mm)

60,000(17.58) 30sq.in.(194cm2) 20sq.in.(129cm2) 15sq.in.(97cm2) 5" (127mm)

75,000(21.98) 37.5sq.in.(242cm2) 25sq.in.(161cm2) 18.75sq.in.(121cm2) 5" (127mm)

80,000(23.45) 40sq.in.(258cm2) 26.7sq.in.(172cm2) 20sq.in.(129cm2) 5" (127mm)

100,000(29.31) 50sq.in.(322cm2) 33.3sq.in.(215cm2) 25sq.in.(161cm2) 6" (152.4mm)

125,000(36.63) 62.50sq.in.(403cm2) 41.7sq.in.(269cm2) 31.25sq.in.(202cm2) 7" (177.8mm)

EXAMPLE: Determining Free Area

Furnace Water Heater Total Input

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

29.31 8.8 (38.11 ÷ .18) 210 cm2 Vertical

Furnace Water Heater Total Input

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

29.31 8.8 (38.11 ÷ .09) 423 cm2 Horizontal

44001202401 Specifications are subject to changewithout notice. 11

IndoorCombustionAir (UnconfinedSpace)

Standard and Known-Air-Infiltration Rate Methods

©NFPA & AGA

Indoor air is permitted for combustion and ventilation, if the

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

CARBON MONOXIDE POISONING HAZARD

Failure to supply adequate combustion air could

result in personal injury or death.

Most homes will require additional air from

outdoors for combustion and ventilation. A space

with at least 50 cubic feet per 1,000 BTUH (4.8 cubic

meters per kW) input rating or homes with tight

construction may need outdoor air, supplied

through ducts, to supplement air infiltration for

proper combustion and ventilation of flue gases.

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

volume than 50 cubic feet per 1,000 BTUH (4.8 cubic meters per

kW) of the maximum input ratings for atl gas appliances installed in

the space. The standard method permits indoor air to be used for

combustion and ventilation air.

The Known Air Infiltration Rate Method shall be used if the

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

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

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

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

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

minimum required volume for each appliance in the space, and

add the volumes together to get the total minimum required

volume for the space.

CARBON MONOXIDE POISONING HAZARD

Failure to supply additional air by means of

ventilation grilles or ducts could result in personal

injury or death.

An unconfined space or homes with tight

construction may not have adequate air infiltration

for proper combustion and ventilation of flue gases.

Most homes will require additional air.

The Known Air Infiltration Rate Method shall be used if the

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

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

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

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

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

minimum required volume for each appliance in the space, and

add the volumes together to get the total minimum required

volume for the space.

CARBON MONOXIDE POISONING HAZARD.

Failure to supply additional air by means of

ventilation grilles or ducts could result in personal

injury or death.

An unconfined space or homes with tight

construction may not have adequate air infiltration

for proper combustion and ventilation of flue gases.

Most homes will require additional air.

ACH

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

OtherThanFan-AssistedTotal Fan-assistedTotal

30,000BTU

(8,790kW)

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

(11,720kW) (14,650kW) (21,975kW) (29,300kW) (36,625kW)

0,60 1,050 (29,7) 1,400 (39,2) 1,750 (49) 1,875 (52,5) 2,500 (70) 3,125 (87,5)

0,50 1,260 (35,3) 1,680 (47,04) 2,100 (58,8) 2,250 (63) 3,000 (84) 3,750 (105)

0,40 1,575 (44,1) 2,100 (58,8) 2,625 (73,5) 2,813 (78,8) 3,750 (105) 4,688 (131,3)

0,30 2,100 (58,8) 2,800 (78,4) 3,500 (98) 3,750 (105) 5,000 (140) 6,250 (175)

0,20 3,150 (88,2) 4,200 (117,6) 5,250 (147) 5,625 (157,5) 7,500 (210) 9,375 (262,5)

0,10 6,300 (176,4) 8,400 (235,2) 10,500 (294) 11,250 (315) 15,000 (420) 18,750 (525)

0,00 NP NP NP NP NP NP

50,000BTU

(14,650kW)

ft 3 (m 3)

1,250(35)

1,500(42)

1,875(52,5)

2,500(70)

3,750(105)

7,500(210)

ACH = Air Changes per Hour

NP = Not Permitted

Table 2 Minimum Space Volumes were determined by using the

following equations from the National Fuel Gas Code ANSI

Z223.1/N FPA 54-2006, 9.3.2.2:

1. For appliances other than fan-assisted appliances (such

as a draft hood-equipped water heater), calculate using the

following equation:

-- ACH 1000 BTUH

Required Volume other _59 m3 _|other )

-- ACH .293 kW

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

calculate using the following equation:

Required Volume fan_ 15ft3 ( .fan )

ACH 1000 BTU H

Required Volume fan _.42 m3 _, [fan )

ACH .293 kW

where:

[other=all appliances other than fan-assisted input in BTUH

[ fan =fan-assisted appliance input in BTUH

ACH = air change per hour (percent of volume of space

exchanged per hour, expressed as a decimal)

12 Specificationsare subject to changewithout notice. 440 012024 01

The following requirements apply to the Standard Method and to

the Known Air Infiltration Rate Method.

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

are no closable doors between rooms.

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

communicates with the outdoors provided there are adequate

ventilation openings directly to outdoors. Openings MUST

remain open and NOT have any means of being closed off.

Ventilation openings to outdoors MUST be at least 1 square

inch of free area per 4,000 BTUH (5.5 cm2/kW) of total input

rating for all gas appliances in the space.

• Combining spaces on the same floor level. Each opening

shall have a free area of at least 1 in2/1,000 BTUH

(22cm2/kW) of the total input rating of all gas appliances in the

space, but not less than 100 in2 (645 cm2). One opening shall

commence within 12" (304.8 mm) of the top and one opening

shall commence within 12" (304.8mm) of the bottom of the

enclosure. The minimum dimension of air openings shall be at

least 3" (76.2 mm).

• Combining spaces on different floor levels. The volumes of

spaces on different floor levels shall be considered

communicating spaces if connected by one or more

permanent openings in doors or floors having a free area of at

least 2 in2/1,000 Btuh (44 cm2/kW) of total input rating of all

gas appliances.

• In spaces that use the Indoor Combustion Air Method,

infiltration should be adequate to provide air for combustion,

ventilation and dilution of flue gases. However, in buildings

with unusually tight construction, additional air MUST be

provided using the methods described in section titled

Outdoor Combustion Air Method:

• Unusually tight construction is defined as Construction with

1. Walls and ceilings exposed to the outdoors have a

continuous, sealed vapor barrier. Openings are

gasketed or sealed and

2. Doors and openable windows are weather stripped and

3. Other openings are caulked or sealed. These include

joints around window and door frames, between sole

plates and floors, between wall-ceiling joints, between

wall panels, at penetrations for plumbing, electrical and

gas lines, etc.

VentilationAir

Some provincial codes and local municipalities require ventilation

or make-up air be brought into the conditioned space as

replacement air. Whichever method is used, the mixed return air

temperature across the heat exchanger MUST not fall below 60°

so that flue gases will not condense excessively in the heat

exchanger. Excessive condensation will shorten the life of the heat

exchanger and possibly void your warranty.

Venting andCombustionAir Check

NOTE: If this installation replaces an existing furnace from a

commonly vented system, the original venting system may no

longer be sized to properly vent the attached appliances. An

improperly sized venting system may cause the formation of

condensate in the vent and the leakage or spillage of vent gases.

To make sure there is adequate combustion air for all appliances,

MAKE THE FOLLOWING CHECK.

Vent Check

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

Vent Pipe----_ sDraft Hood

Typical Gas f"_

Water Heater [_ _ j____ Match

I I v

If flame pulls towards draft hood, this indicates

sufficient venting.

The following information is supplied to allow the installer to make

adjustments to the setup of existing appliances, IF REQUIRED,

based on good trade practices, local codes, and good judgement

of the installer. Manufacturer does NOT take responsibility for

modifications made to existing equipment.

CARBON MONOXIDE POISONING HAZARD

Failure to follow the steps outlined below for each

appliance connected to the venting system being placed

into operation, could result in carbon monoxide

poisoning or death:

The following steps shall be followed for each appliance

connected to the venting system being placed into

operation, while all other appliances connected to the

venting system are not in operation:

1. Seal any unused openings in the venting system.

2. Inspect the venting system for proper size and horizontal

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

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

pane Installation Code and these instructions. Determine

that there is no blockage or restriction, leakage, corrosion

and other deficiencies which could cause an unsafe con-

dition.

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

and all doors between the space in which the appliance(s)

connected to the venting system are located and other

spaces of the building.

4. Close fireplace dampers.

5. Turn on clothes dryers and any appliance not connected

to the venting system. Turn on any exhaust fans, such as

range hoods and bathroom exhausts, so they are operat-

ing at maximum speed. Do not operate a summer exhaust

fan.

6. Followthe lighting instructions. Place the appliance being

inspected into operation. Adjust the thermostat so ap-

pliance is operating continuously.

7. Test for spillage from draft hood equipped appliances at

the draft hood relief opening after 5 minutes of main burn-

er operation. Use the flame of a match or candle.

(Figure 7)

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

tests, the venting system must be corrected in accor-

dance 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, exhaust fans,

fireplace dampers and any other gas-fired burning ap-

pliance to their previous conditions of use.

440 01 202401 Specificationsare eubject to changewithout notice. 13

For Two Pipe Installation

(DirectVent)

This furnace can NOT be common vented or connected to any type

B, BW or L vent or vent connector, nor to any portion of a

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

previously common-vented furnace, it may be necessary to resize

the existing vent and chimney to prevent oversizing problems for

the other remaining appliance(s). See "Venting and Combustion

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

outside.

4. Vent and Combustion Air Piping

CARBON MONOXIDE POISONING HAZARD

Failure to properly vent this furnace could result in

personal injury or death.

Use methods described here to provide combustion

and ventilation air.

Dual Certified(*SMPT,*SMPV,*SMVXModels)

Direct or Non-DirectVent

This furnace is certified as a Category IV furnace. This furnace can

be installed as a direct vent furnace using outside air for

combustion or the furnace can use air from inside the structure for

combustion. The INLET air pipe is optional. If combustion air

comes from inside the structure, adequate make up air MUST be

provided to compensate for oxygen burned. See Confined Space

Installation in the Combustion and Ventilation Air chapter. If

combustion air is drawn from outside the structure, it MUST be

taken from the same atmospheric pressure zone as the vent pipe.

ContaminatedCombustionAir

Installations in certain areas or types of structures will increase the

exposure to chemicals or halogens that may harm the furnace.

The following areas or types of structures may contain or have

exposure to the substances listed below. The installation must be

evaluated carefully as it may be necessary to provide outside air for

combustion.

• Commercial buildings.

• Buildings with indoor pools.

• Furnaces installed in laundry rooms.

• Furnaces installed in hobby or craft rooms.

• Furnaces installed near chemical storage areas.

• Permanent wave solutions for hair.

• Chlorinated waxes and cleaners.

• Chlorine based swimming pool chemicals.

• Water softening chemicals.

• De-icing salts or chemicals.

• Carbon tetrachloride.

• Halogen type refrigerants.

• Cleaning solvents (such as perchloroethylene).

• Printing inks, paint removers, varnishes, etc.

• Hydrochloric acid.

• Sulfuric Acid.

• Solvent cements and glues.

• Antistatic fabric softeners for clothes dryers.

• Masonry acid washing materials.

Vent and CombustionAir PipingGuidelines

This furnace is approved for venting with Schedule 40 PVC, CPVC,

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

Applicable ASTM Standardsfor Vent Materials

Cell

Sch.40 SDR Solv.

Materials Pipe Pipe Core Fittings Primer Cement

Pipe

D2468

ABS D1527 F628 & -- D2235

D2661

D2466

PVC D1785 D224t F891 & F656 D2564

D2665

CPVC F44t F442 -- F438 -- F493

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

PVC

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

conform to applicable CSA standards or to local codes having

jurisdiction.

2) Only use solvent cements that are marked for use

with the specific venting material.

3) ABS to PVC transition joints REQUIRE a special

solvent cement that meets the requirements of ASTM D3138.

4) Refer to ASTM D2855 for general procedure to

use for cementing plastic pipe and fittings.

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

RTV sealant MUST be used on the inlet pipe where itjoins to the

furnace.

NOTE: All vent piping MUST be installed in compliance with local

codes or ordinances, these instructions, good trade practices, and

codes of country having jurisdiction.

1. Determine the best routing and termination for the vent pipe

and air inlet pipe by referring to all of the instructions and

guidelines in this Section.

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

pipe.

3. Loosely assemble all venting parts without adhesive (pipe

joint cement) for correct fit before final assembly.

4. Furnace shall be installed so as to prevent the accumulation

of condensate.

5. Use of vertical piping is preferred because there will be

some moisture in the flue gases that may condense as it

leaves the vent pipe (See Instructions For Horizontal

Vents).

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

is allowed to rest on the combustion blower.

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

be reduced.

8. All exhaust vent piping from the furnace to termination

MUST slope upwards. A minimum of 1/4" (6.4mm) per foot

(304.8mm) of run is required to properly return condensate

to the furnace drain system.

9. Use DWV type long radius elbows whenever possible, as

they provide for the minimum slope on horizontal runs and

they provide less resistance in the vent system. If DWV

elbows cannot be used, use two, 45 ° elbows when possible.

On horizontal runs the elbows can be slightly misatigned to

provide the correct slope.

14 Specificationsare subject to changewithout notice. 440 012024 01

10. All horizontal pipe runs MUST be supported at least

every five feet with galvanized strap or other rust

resistant material. NO sags or dips are permitted.

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

where accessible.

12. The maximum pipe length is 40' (12.2m) total in the inlet or

outlet side of the system. Up to five, 90 ° elbows can be used

on the inlet or the outlet. With the Concentric Vent

Termination Kits (NAHA001CV or NAHA002CV), the

maximum pipe length is 35' (10.7m) with four 90 ° elbows. If

more elbows are required, reduce the length of both the inlet

and exhaust pipes 5' (1.5m) for each additional elbow used.

(See Table 3 or Table 4).

13. The minimum vent length is 5' (1.5m) of PVC.

14. The piping can be run in the same chase or adjacent to

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

can also be run in the same chase with a vent from another

90+ furnace.

NOTE: In NO case can the piping be run in a chase where

temperatures can exceed 140 ° F (60 ° C). or where radiated

heat from adjacent surfaces would exceed 140° F(60 ° C).

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

atmospheric pressure zone as the combustion air inlet.

16. The vent system can be installed in an existing unused

chimney provided that:

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

chimney.

• No other gas fired appliance or fireplace (solid fuel) is

vented into the chimney.

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

up to seal against rain or melting snow so ONLYthe piping

protrudes.

• The termination clearances shown in Figure8 are

maintained.

17. Furnace applications with vertical vents requiring vent

diameter increaser fittings must have increaser fittings

installed in vertical portion of the vent. Condensate will be

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

having an elbow turned upward. This could cause nuisance

tripping of the pressure switch.

CombustionAir andVent PipingInsulation

Guidelines

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

Fiberglass or equivalent insulation is used it must have a vapor

barrier. Use R values of 7 up to 10' (3.1m), R-11 if exposure

exceeds 10' (3.1 m). If Fiberglass insulation is used, exterior to the

structure, the pipe MUST be boxed in and sealed against moisture.

1. When the vent or combustion air pipe height above the roof

exceeds 30" (76.2mm), or if an exterior vertical riser is used

on a horizontal vent to get above snow levels, the exterior

portion MUST be insulated.

2. When combustion air inlet piping is installed above a

suspended ceiling, the pipe MUST be insulated with

moisture resistant insulation such as Armaflex or other

equivalent type of insulation.

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

humid spaces.

SizingCombustionAir andVent Pipe

Consult Table 3 or Table 4 to select the proper diameter exhaust

and combustion air piping. Exhaust and combustion air piping is

sized for each furnace Btuh size based on total lineal vent length

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

1. Double Pipe Installation-If installing as a direct-vent

appliance, consult Table 4 to select the proper diameter

exhaust and combustion air piping. Exhaust and

combustion air piping is sized for each furnace Btuh size

based on total lineal vent length (on inlet or outlet side), and

number of 90° elbows required.

2. Single Pipe Installation-If installing as a non-direct vent

appliance, (single outlet pipe and no inlet pipe) refer to

Table 3. The table shows the maximum number of elbows

allowed with any given pipe diameter and length of run.

3. Use of Elbows-Two 45° elbows can be substituted for one

90° elbow. The elbow or elbows used for vent termination

outside the structure ARE counted, including elbows

needed to bring termination above expected snow levels.

Pipe Diameter Table

Single Piping ONLY

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

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

80,000 & 100,000 Btuh Furnace

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

125,000 Btuh Furnace

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

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

DWV Long Radius Type for 2" (50.Smm) and 3" (76.2mm)

vents.

If more than five elbows are required, reduce the length of both

the inlet and exhaust pipes 5' (1.5m) for each additional elbow

used. If less than five elbow are required, the length can be

INCREASED by 5' (1.5m) for each additional elbow NOT used.

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

shown in the tables but not smaller diameters than shown.

Pipe Diameter Table

Dual Piping ONLY

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

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

80,000 & 100,000 Btuh Furnace

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

125,000 Btuh Furnace

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

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

DWV Long Radius Type for 2" (50.Smm) and 3" (76.2mm)

vents.

If more than five elbows are required, reduce the length of both

the inlet and exhaust pipes 5' (1.5m) for each additional elbow

used. If less than five elbow are required, the length can be

INCREASED by 5' (1.5m) for each additional elbow NOT used.

*Feet of pipe is whichever pipe run is the longest, either inlet

or outlet side.

For venting table, see"Concentric Termination Kit" in

this manual.

Vent Termination Clearances

CARBON MONOXIDE POISONING HAZARD

Failure to properly vent this furnace could result in

death and/or personal injury.

Inlet and outlet pipes may NOT be vented directly

above each other.

1. Determine termination locations based on clearances

specified in following steps and as shown in Figure 8,

Figure 9, Figure 22, through Figure 30.

For "Concentric Termination Kit" clearances, see Figure 32,

Figure 33, Figure 34, Figure 35 and Figure 36 in this manual.

2. This furnace is Dual Certified and can be installed as a

single pipe appliance (all combustion from inside the

structure) or as a direct vent appliance where all

combustion air is taken from outside the structure.

3. For Single Pipe installation refer to Figure 9 for vent

termination clearances.

4. For Direct Vent installation, refer to Figure 8 for vent

termination.

440 01 202401 Specificationsare subject to changewithout notice. 1 5

Figure 8 Direct Vent Termination Clearance

D VENTTERMINAL

\\\\x

_X_ AIR SUPPLY INLET E_ AREA WHERE TERMINAL IS NOT PERMITED

Item Clearance Description Canadian Inslallafion (1) U.S. Installation (2)

A Clearance above grade, veranda, porch, deck, balcony, or 12 inches(30 cm) # 12 inches (30 cm)

anticipated snow level

B Clearance to a window or door that may be opened 12 inches (30 cm) for appliances > 10,000 Btuh (3 kW) 9 inches (23 era) for appliances > 1O,0O0 Btuh (3kW) and s

and s 100,000 Btuh(30 kW), 36 inches 50,000 Btuh 15kW), 12 inches (30cm) for appliances >

(91 cm) for appliances > 100,000 Btuh (30 kW) 50,000 Btuh (ISkW

C Clearance to a permanently closed window

D Vertical clearance to a ventilated soffit located above [he

terminal within a horizontal distance of 2 feet(61em) from the

centerline of the terminal

E Clearance to an unventilated soffit

F Clearance to an OL_side corner

G Clearance to an inside corner

H Clearance to each side of the centerline extended above 3 feet (91 cm) within 15 feet (4.5 m) above the meter/regulator 3 feet (9t cm) within 15 feet(4.5 m) above the

electrical meter or gas service regulator assembly assembly meter/regulator assembly

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

J Clearance to non-mechanical air supply inlet to building or 12 inches (23 era) for appliances > 100,000 Btuh (3 kW) 9 inches (23 cm) for appliances > 10,000 Btuh (3kW) and

the combustion air inlet to any other appliance and s 100,000 Btuh (30 kW), 36 inches (30 cm) for _ 50,000 Btuh (15kW), 12 inches (30cm) for appliances

appliances > 100,000 Btuh (3 kW) > 50,000 Btuh (15kW)

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

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

M Clearance to each side of the centerline extended above or 12 inches (30 em) 12 inches (30 cm)

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

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

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

vent, or other appliances direct vent intake or exhaust.

Q Clearance from a plumbing vent stack 3 feet (91 cm) 3 feet (91 cm)

p Clearance above paved sidewalk or paved 7 feet (2.t 3m)**

driveway located on public property

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

(2.) In accordance with the cu trent ANSI Z223.1/NFPA 54, National Fuel Gas Code

# 18" (46 cm) above roof surface

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

For clearances not specified in ANSI Z223.1/NFPA 54 or CSA B t49.1, clearances shall be in accordance with local inetallation codes and the requirements of the gas supplier and the

manufacturer's installation instructions

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

Notes:

The vent for this appliance shall not terminate

a. Over public walkways; or

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

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

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

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

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

440 012024 01

Specifications are eubject to change without notice.

Other than Direct Vent Termination Clearance

D VENT TERMINAL \_ _X_ AIR SUPPLY INLET E_ AREA WHERE TERMINAL IS NOT PERMITED

Item Clearance Descriptions

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

anticipated snow level

B Clearance to a window or door that may be opened

C Clearance to a permanently closed window

D Vertical clearance to a ventilated soffit located above the

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

centerline of the terminal

E Clearance to an unventilated soffit

F Clearance to an outside corner

G Clearance to an inside corner

H Clearance to each side of the centerline extended above

electrical meter or gas service regulator assembly

I Clearance to service regulator vent outlet

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

the combustion air inlet to any other appliance

Clearance to a mechanical air supply inlet

Clearance under a veranda, porch, deck, or balcony

Canadian Installation (t)

12 inches (30cm) #

6 inches (15 cm) for appliances -< 10,000 Btuh (3 kW)

12 inches ( 30 cm) for appliances > 10,000 Btuh (3 kW0)

and -< 100,000 Btuh (30 kW), 36 inches (91 cm) for

appliances > 100,000 Btuh (30 kW)

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

assembly

3 feet (91 cm)

6 inches (15 cm) for appliances -< 10,000 Btuh (3 kW)

12 inches ( 30 cm) for appliances > 10,000 Btuh (3 kW0)

and -< 100,000 Btuh (30 kW)

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

6 feet(1.83 m)

12 inches(30 am) +

Clearance to each side of the centerline extended above or

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

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

N Clearance to the vent terminal of a dryer vent, water heater

vent, or ether appliances direct vent intake or exhaust.

O Clearance from a plumbing vent stack

p Clearance above paved sidewalk or paved 7 feel (2.13m)**

driveway located on public property

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

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

# 18'(46cm) above roof surface

U.S. Installation (2)

12 inches (30 cm)

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

above the opening.

3 feet (91 cm) Within 15 feet (4.5 m) above the meter/regulatol

assembly

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

above opening.

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

7 feet (2.13m)

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

For clearances not specified in ANSI Z223.1/NFPA 54 or CSA B149.1, clearances shall be in accordance with local installationcodes and Ihe requirements of the gas supplier and the

Manufacturer's installation instructions.

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

Notes:

1. The vent for this appliance shall not terminate

a. Over publicwalkweys; or

b. Nears__itvents_rcraw_spacevents_r_therareaswherec_ndensate_rvap_rc_u_dcreateanusiance_rhazard_rpr_pertydamage;_r

c. Wherec_ndensatevap_rc_u_d_ausedamage_r_dbedetrimenta_t_t_e_perati_n_fregu_a_rs_re_iefva_ves_r_therequipment_

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

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

3 Avoid venting under adeck or large overhang. Recirculation could occur end cause performance or system problems. A05013

440 01 202401 Specificationsare eubject to changewithout notice. 1 7

CondensateDrainTrap

This furnace removes both sensible and latent heat from the

products of combustion. Removal of the latent heat results in

condensation of the water vapor. The condensate is removed from

the furnace through the drains in the plastic transition and the vent

fitting. The drains connect to the factory installed internally

mounted condensate drain trap on the left or right side of the

furnace.

The startup of a new furnace will involve a cycle or two of the

furnace to properly prime the condensate trap with water. Until the

trap is fully primed, some condensate will be pulled into the

combustion blower. The furnace may cycle on the pressure switch

connected to the plastic transition box due to condensate buildup.

After the trap is primed, the condensate will start draining from the

furnace. The combustion blower will clear out any remaining

condensate in the blower housing through the vent fitting

downstream of the blower. Note that the condensate trap can also

be primed by pouring water into the 1/2" (12.7mm) drain hose.

Remove the1/2 '' (12.7mm) ID drain hose from either the gutter or

the white PVC tee trap. Using a funnel pour eight (8) ounces of

water into 1/2" (12.7mm) ID drain hose. Water will flow through the

drain hose and into the condensate drain trap. This will prime both

the vent and the transition sides of the trap. Reconnect the 1/2"

(12.7mm) ID drain hose to the original component, either the gutter

or the PVC tee trap.

The condensate drain trap supplied with the furnace MUST be

used. The drain connection on the condensate drain trap is sized

for 3/4" (19.1mm) PVC or CPVC pipe, however alternate 1/2"

(12.7mm) CPVC [nominal 5/8" (15.gmm) O. D.] or vinyl tubing with a

minimum inner diameter (I.D.) of 5/8" (15.gmm) may also be used,

as allowed by local codes. Alternate drain pipes and hoses may be

used as allowed by local codes.

The drain line must maintain a 1/4" (6.4mm) per foot (304.8mm)

downward slope toward the drain. 1/4" (6.4mm) per foot (304.8mm)

is recommended. Installation of an overflow line is recommended

when the 1/4"(6.4mm) per foot (304.8mm) slope to the condensate

drain cannot be maintained. A drain tube clip is included in the

furnace to prevent kinking/buckling of the drain tube. The clip

should remain in the furnace (between the door switch plate and

the blower shelf, Figure 10) during operation. See Figure 20 for

proper routing and installation of the overflow.

Fi_ _ !'i'111Drain Tube Clip Location

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

Drain Tube

Blower

Shelf Door

Switch

Representative drawing only, some models may vary in appearance.

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.

1. A condensate sump pump MUST be used if required by

local codes, or if no indoor floor drain is available. The

condensate pump must be approved for use with acidic

condensate.

2. A plugged condensate drain line or a failed condensate

pump will allow condensate to spill. Ifthe furnace is installed

where a condensate spill could cause damage, it is

recommended that an auxiliary safety switch be installed to

prevent operation of the equipment in the event of pump

failure or plugged drain line. If used, an auxiliary safety

switch should be installed in the R circuit (low voltage)

ONLY.

3. If the auxiliary switch in the condensate pump is used, the

furnace may shut down due to a blocked condensate line or

failed pump. To prevent frozen water pipes see the "Frozen

Water Pipe Hazard" section of this manual.

PROPERTY 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.

CondensateDrainTrap Freeze Protection

Special precautions MUST be made if installing furnace in an area

which may drop below freezing. This can cause improper

operation or damage to the equipment. If the the furnace

environment has the potential of freezing, the drain trap and drain

line must be protected. Use 3 to 6 watt per foot at 115 volt, 40 ° F

(4°0) self-regulating shielded and waterproof heat tape. Wrap the

drain trap and drain line with the heat tape and secure with the ties.

Follow the heat tape manufacturer's recommendations. Prime the

trap before furnace operation.

18 Specifications are eubject to changewithout notice. 440 012024 01

iiiiiii!iiiiiii!iiii iup,,ow,noto,,ot,onoTopVent

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

Vent Drain

& Clamps

Dual Pressure Switch Detail

,,*,i

F_\ J

wOn SomeModels

zJ jZ ONLY

Plastic Caps (2)

Yellow or black _. _ ....................................

Coupling&Clamps ...................

(Optional) ................................._ ......................................................./ /

Single Pressure Switch

ReliefTube

z ........BlackRubber3/16"

(4.8mm)ID

_StreetElbow

1/2" (12.7mm)CPVC

(Loosepartsbag)

(12.7mm)CPVC(Loose

partsbag)'_ ...... /....... _ _" _/o] _"

CasingGrommet ',, _(7_h _ ..... • _i _/=_;J_

BlackRubber-_ "' \ /..... _ _ I_'_; _,_ ;.b

5/8"( S.mmm) D ',,

<Loosepartsbag, - _ __ ..... _ .... __ "_'_

DrainLineVentTee3/4" DrainTubeBlackRubber5/8"(15.9mm)ID &

(18.1mm)PVCor1/2"(12.7mm)

CPVC(Fieldsupplied) Clamps,Cutlengthtofit (Loosepartsbag)

Representative drawing only, some models may vary in appearance,

Upflow Installations Top Vent (SeeFigure11)

Remove knockout from the side of the furnace casing where drain

tube will exit.

Install casing grommet [black rubber 5/8" (15.9mm) ID grommet -

in loose parts bag].

Install the 1/2" (12.7mm) CPVC street elbow on discharge of trap

Install the black PVC tube connector [ 3/4" (18.1mm) PVC x _/2"

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

above.

Cut the black drain tube [5/8" (15.9mm) ID - in loose parts bag] to

length to fit between trap and tube connector through grommet.

Clamp both ends of the drain tube using clamps provided.

25-24-67

Glue the CPVC street elbow to the trap using appropriate cleaner

and solvent cement.

The field supplied 3/4" (18.1mm) PVC or 1/2" (12.7mm) CPVC

drain line vent tee must vent outside the furnace cabinet (see

exploded view above),

Note: It is recommended that all PVC piping and fitting

connections be fit up and inspected before final cementing. Trap

must be primed before operation, Verify all condensate drain

connections are securely clamped. A coupling and clamps (in

loose part bag) may be installed as shown for future servicing of

the vent system.

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

jurisdiction.

440 01 202401 Specificationsare subject to changewithout notice. 1 9

iiiiii;_iiiiii;iii!iii1iiiiiii_i!iii1iiii;;1i_ii1i!!!iiiiiii1i1ii_iI!!!!iiiiii_iiiiiiiiiHi1iii;iiiiiiiii;iiiIiiiiYi1iiii!!ii1iiiii

Upflow Installations Vent through Left Side

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

25-24-67a

Representative drawing only_ some models may vary in appearance,

Upflow Installations Vent through Left-Side (See

Remove drain tee from inducer discharge and remove black drain

tube 1/2" (12.7mm) ID from bottom of drain tee. (*9MPT, *9MPV or

*9MVX models only)

Install Vent Pipe grommet in side of casing.

Cut an appropriate length of 2" (50.8mm) PVC pipe long enough

to exit the cabinet and connect the vent drain to either:

• A 2" (50.8mm) PVC coupling fastened onto the drain tee

(*9MPT, *9MPV or *9MVX models)

Install tee trap into bottom of tee.

Remove knockout from the side of the furnace casing where drain

tube will exit.

Install the 1/2" (12.7mm) CPVC street elbow on discharge of trap

Install the black PVC drain connector [3/4" (19.1mm) PVC x 1/2"

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

Figure 12)

Cut the black drain tube [5/8" (15.9mm) ID - in loose parts bag] to

length to fit between trap and tube connector through grommet.

Clamp both ends of the drain tube using clamps provided.

Glue the CPVC street elbow to the trap using appropriate cleaner

and solvent cement.

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

shown in Figure 20.

Note: It is recommended that all PVC piping and fitting

connections be fit up and inspected before final cementing. Both

the internal trap and the external tee trap must be primed

before operation. Verify all condensate drain connections are

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

be installed as shown for future servicing of the vent system.

20 Specificationsare eubject to changewithout notice. 440 012024 01

_i_;ii_i_i_i_i_i_i!i_i_!_i_i_1_i_

be angled 5° to 10° also. (Loose partsbag) 25-24-68

All Models Vent through Right-Side (SeeFigure13)

Disconnect the black drain tube between the drain vent and the

trap.

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

(4) inducer attachment screws. Reinstall and retighten the inducer

screws to 20" pounds torque.

Using the 1/2"(12.7mm) OD barbed coupling in the loose parts bag

connect together with the two short 1/2" (12.7mm) ID elbow tubes

and connect the lower discharge port of the vent drain to the trap.

Secure all connections with clamps.

Install the vent pipe grommet into the casing

Cut an appropriate length of 2" (50.8mm) PVC pipe long enough

to exit the cabinet and connect the vent drain to either:

• A 2" (50.8mm) PVC coupling fastened onto the drain tee

Install tee trap into bottom section of tee.

Remove knockout from the side of the furnace casing where drain

tube will exit.

Install casing grommet black rubber [5/8" (15.9mm) ID grommet

- in loose parts bag]

Install the 1/2" (12.7mm) CPVC street elbow on discharge of trap.

Install the black PVC tube connector [3/4" (19.1mm) PVC x 1/2"

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

above.

Cut the black drain tube [5/8" (15.9mm) ID - in loose parts bag] to

length to fit between trap and tube connector through grommet.

Clamp both ends of the drain tube using clamps provided.

Glue the CPVC street elbow to the trap using appropriate cleaner

and solvent cement.

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

shown in Figure 20.

Note: It is recommended that all PVC piping and fitting

connections be fit up and inspected before final cementing. Both

the internal trap and the external tee trap must be primed

before operation. Verify all condensate drain connections are

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

be installed as shown for future servicing of the vent system.

440 01 202401 Specificationsare subject to changewithout notice. 21

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/Plastic Cap SIDE VIEW

/_:_r_Rotate downward

// 5° to 10°

/--/Coupling NOT channel will

be angled 5° to t0° also,

/-- DrainTube

/,BlackRubber1/2"

// (12.7mm)ID&Clamps _

/ReliefTubeBlackRub-

\ _ i _ / Dual Pressure Switch _ zber 3/16" (48mm) lD

Single Pressure Switch Detail _ i /_./ •

,////,7' /_/-_'17', _ ;/ ;;/>/"_-- !',,m _. _.// ..- ONLY

_;'S__<_ _ '_ ............'<J' <<_................." /\\ ': - < ....

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///73;) ..... Alternate .-.. i ii 'i <\, _=;</_'/_ ,<;;) i i

_/_ TeeTrapWhitePVC.......... INLET* :h i i ii ii _. 1o_//_ X')' i _--FlexibleTubingConnector,'/16"

c_i_ (loosepartsbag) ' i;'/ /';i _>./___._/___- ..................i i (4.8mm)OD(loosepartsbag)

_;_'_o Elbow TubeBlackRubber1/2'_ ;; / -_,!J __..f_\--@ J : ....

' ' H27mmlID&Clam-s'Loose.......... _ i ReliefTube,_-xtensionBlacK

; i ParisBa_l v t _ _-_!_,D_ .............._ Rubber,3/16"(4.8mm)IDCutto

0' • _*<; .

: fit (loosepartsbag)

i _

WARNING

MoveCapsto .....................................m

top of trap i /i I , /L_I o_--//_-._ II 'Trap Connection ^

// ;; I i / i O L_'_ ........... "biampears"

.....'iS !//..... _-_--> _o\ _ PointedOUT

5/"o.d/ _.<

DrainTubeBlack 18"(15.9mm)lD / ,'/ ......................................................................................................................./%-'-"-<._

CorrugatedCutatstraightsection /{J. -- /--\_/. o .ii.,i+;_4__ _ .,

/'_.................................................................................................)'_c--7 \_,J,CJf

BarbedCoupling112" (12.7mm)

Leaveroomfor clamp _CutHere OD(loosepartsbag) Preassemble&insert into furnace 25-24-69

Representative drawing only_some models may vary in appearance,

Downflow Left-Side Vent and Trap (SeeFigure14)

Remove the inducer mounting screws, rotate the inducer 180 °

and retighten the inducer screws to 20" pounds torque.

Disconnect the hoses from the trap assembly, and remove trap

and trap mounting bracket from the blower compartment. Using

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

hole from the burner compartment to the blower compartment and

secure with screws.

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

to the left side of the unit using the two(2) screws provided.

Cut the 5/8" (15.9mm) ID corrugated hose as shown above and

fasten the 90° bend end to the trap and fasten the straight end to

the transition drain. Secure both connections with clamps.

Reconnect the _/2" (12.7mm) ID drain hose from the vent drain to

the trap and secure with a clamp. In some cases, additional length

will be required for this hose. Use the Black plastic 1/2" (12.7mm)

OD barbed coupling and a suitable section of _/2" (12.7mm) ID

hose to make the connection. Secure all connections with clamps

Connect the 3h6" (4.8mm) ID relief tube from the small port on the

trap to the top port of the transition as shown in the picture. In some

cases, additional hose length will be needed. Use the clear plastic

3/16" (4.8mm) OD flexible tubing connector and a suitable length

of extra 3/16" (4.8mm) ID hose to make this connection.

Install the vent pipe grommet into the casing

Cut an appropriate length of 2" (50.8mm) PVC pipe long, enough

to exit the cabinet and connect the vent drain to either:

• A 2" (50.8mm) PVC coupling fastened onto the drain tee

Install tee trap into bottom section of tee and glue pipe.

Remove knockout from the side of the furnace casing where drain

tube will exit.

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

shown in Figure 20.

Note: It is recommended that all PVC piping and fitting

connections be fit up and inspected before final cementing. Both

the external trap and the external tee trap must be primed

before operation, Verify all condensate drain connections are

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

be installed as shown for future servicing of the vent system.

22 Specifications are subject to changewithout notice. 440 012024 01

_i_i_i_!_!_i_i_i_i_i_;;_!_i_i_i_i_!

_!_I_11_ii_! Downflow Right-Side Vent and Trap

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

(15.9mm)ID Cut to fit &Clamps

(loosepartsbag) 25-24-60b

Representativedrawing only, some models mayvary in appearance,

Downflow Right-Side Vent and Trap (SeeFigure15)

Remove the drain tee if installed.

Disconnect the hoses from the trap assembly, and remove trap

and trap mounting bracket from the blower compartment. Using

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

hole from the burner compartment to the blower compartment and

secure with screws.

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

to the right side of the unit using the two(2) screws provided.

Connect the corrugated drain tube from the transition box to the

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

connector and the black 5/8" (15.9mm) ID drain tube inthe loose

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

Connect the drain hose from the Vent Drain to the trap. If an

extension is required, use the black 1/2" (12.7mm) OD barbed

coupling, connect a black 1/2" (12.7mm) ID elbow tube and a

suitable section of a 1/2" (12.7mm) ID drain tube to make

connection from the vent drain to the trap. Secure all connections

with clamps.

Install the vent pipe grommet into the casing

Cut an appropriate length of 2" (50.8mm) PVC pipe long, enough

to exit the cabinet and connect the vent drain to either:

•A 2" (50.8mm) PVC coupling fastened onto the drain tee

Install tee trap into bottom section of tee and glue pipe.

Remove knockout from the side of the furnace casing where drain

tube will exit.

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

shown in Figure 20.

Note: It is recommended that all PVC piping and fitting

connections be fit up and inspected before final cementing. Both

the external trap and the external tee trap must be primed

before operation, Verify all condensate drain connections are

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

be installed as shown for future servicing of the vent system.

440 01 202401 Specificationsare subject to changewithout notice. 23

iiiiiiiiiiiiiiiii_;iiili!!I_i_i!_ii_iji_iiiiiiiiiiii!iiii_i!ii_ii_iiii!!iii_iiiS_i_i_ii!iii1iiii_iiiiii!ii_i!;!i

iiiiii_iiiiiiiiiiiiI/_I_iiii_/_ _i_ _ H orizonta_ Left th rough Top

Horizontal Left through Top (SeeFigure16)

Disconnect the hoses from the trap assembly, and remove trap

and trap mounting bracket from the blower compartment. Using

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

hole from the burner compartment to the blower compartment and

secure with screws.

Remove knockout from the side of the furnace casing where drain

tube will exit.

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

two screws provided in the location shown.

Cut the corrugated tube as shown in the illustration above.

Connect the corrugated hose from the transition to the trap.

Secure connections with clamps.

Remove the black 1/2" (12.7mm) ID drain tube from the drain tee.

Install a yellow cap and clamp over the open drain port of the drain

tee.

Connect the black 1/2" (12.7mm) ID drain tube from the Vent Drain

to the trap. Secure connections with clamps.

Connect the 3/16" (4.8mm) ID relief tube to the middle port on the

trap. If an extension is required, use the 3/16" (4.8mm) OD flexible

tubing connector and the black 3/16" (4.8mm) ID relief tube in the

loose parts bag. Cut tube to length. Secure all connections with

clamps.

Cut an appropriate length of 2" (50.8mm) PVC pipe, long enough

to exit the cabinet and connect the vent drain to either:

•A 2" (50.8mm) PVC coupling fastened onto the drain tee

Install tee trap into bottom section of tee and glue pipe.

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

shown in Figure 20.

Note: It is recommended that all PVC piping and fitting

connections be fit up and inspected before final cementing. Both

the external trap and the external tee trap must be primed

before operation, Verify all condensate drain connections are

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

be installed as shown for future servicing of the vent system.

24 Specificationsare subject to changewithout notice. 440 012024 01

iiiiiiiiiiiiiiiiiiiiiYiiiiiiiii!iiiiiii_iiiiiiiiiiiii!!ii_X'iiiiiiii!iiii_i,iiiY!Siiiiiiiiiiiiii_iiiiiii_iiiiiiii_'iiii/_ii

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

Horizontal Left-Side Vent (SeeFigure17)

Remove the drain tee from the Vent Drain if installed (*9MPD

models only)

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

inducer attachment screws. Reinstall and retighten the inducer

screws to 20" pounds torque.

Disconnect the hoses from the trap assembly, and remove trap

and trap mounting bracket from the blower compartment. Using

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

hole from the burner compartment to the blower compartment and

secure with screws.

Remove knockout from the side of the furnace casing where drain

tube will exit.

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

two screws provided in the location shown.

Cut the corrugated tube as shown in the illustration above.

Connect the corrugated hose from the transition to the trap.

Secure connections with clamps.

Connect the black 1/2" (12.7mm) ID drain tube from the Vent Drain

to the trap. If an extension is required, use the black 1/2" (12.7mm)

OD flexible tubing connector and the black 1/2" (12.7mm) ID drain

tube in the loose parts bag. Cut tube to length. Secure

connections with clamps.

Connect the 3/16" (4.8mm) ID relief tube to the middle port on the

trap. If an extension is required, use the 3/16" (4.8mm) OD flexible

tubing connector and the black 3/16" (4.8mm) ID relief tube in the

loose parts bag. Cut tube to length.

Cut an appropriate length of 2" (50.8mm) PVC pipe, fittings and

extension pipe long enough to exit the cabinet and connect the

vent drain to either:

• A 2" (50.8mm) PVC coupling fastened onto the drain tee

Install tee trap into bottom section of tee and glue pipe.

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

the tee trap

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

shown in Figure 20.

Note: It is recommended that all PVC piping and fitting

connections be fit up and inspected before final cementing. Both

the external trap and the external tee trap must be primed

before operation, Verify all condensate drain connections are

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

be installed as shown for future servicing of the vent system.

440 01 202401 Specificationsare subject to changewithout notice. 25

/i/ii///il;ii!!/iiil!l;iii!iiiiilii/!i//iiiili}//lliil;ili//!!

! .o.zon=t. oo .

TrapConnection Single Pressure Switch Detail Alternate Orientation

"Clampears"

Horizontal Right through Top (SeeFigure18)

Disconnect the hoses from the trap assembly, and remove trap

and trap mounting bracket from the blower compartment. Using

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

hole from the burner compartment to the blower compartment and

secure with screws.

Remove knockout from the side of the furnace casing where drain

tube will exit.

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

two(2) screws provided in the location shown.

Cut the corrugated tube as shown in the illustration above.

Connect the corrugated hose from the transition to the trap.

Secure connections with clamps.

Connect the black 1/2" (12.7mm) ID drain tube from the Vent Drain

to the trap. If an extension is required, use the black 1/2" (12.7mm)

OD barbed coupling and the black 1/2" (12.7mm) ID drain tube in

the loose parts bag. Cut tube to length. Secure connections with

clamps.

Connect the 3/16" (4.8mm) ID relief tube to the middle port on the

trap. If an extension is required, use the clear 3/16" (4.8mm) OD

flexible tubing connector and the black 3/16" (4.8mm) ID relief tube

in the loose parts bag. Cut tube to length.

Cut an appropriate length of 2" (50.8mm) PVC pipe, fittings and

extension pipe long enough to exit the cabinet and connect the

vent drain to a standard field supplied 2" (50.8mm) PVC tee

• A 2" (50.8mm) PVC coupling fastened onto the drain tee

Install tee trap into bottom section of tee and glue pipe.

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

shown in Figure 20.

Note: It is recommended that all PVC piping and fitting

connections be fit up and inspected before final cementing. Both

the external trap and the external tee trap must be primed

before operation, Verify all condensate drain connections are

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

be installed as shown for future servicing of the vent system.

26 Specificationsare eubject to changewithout notice. 440 012024 01

Horizontal Right-Side Vent

Single Pressure Switch Detail

Plastic Cap

Yellowor black

Coupling&Clamps

(Optional)

.. J Field

VentDrain _Supplied Tee

&Clamps /

z ..................)°wardsTee...........................................

J_/)::y) .TeeTrap

...................................--= _ _ [ .-'_ WhitePVC

& Clamps

25-24-70c

Representative drawing only_ some models may vary in appearance,

Horizontal Right-Side Vent (See Figure19)

Disconnect drain tee if installed

Disconnect the hoses from the trap assembly, and remove trap

and trap mounting bracket from the blower compartment. Using

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

hole from the burner compartment to the blower compartment and

secure with screws.

Remove knockout from the side of the furnace casing where drain

tube will exit.

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

two(2) screws provided in the location shown.

Cut the corrugated tube as shown in the illustration above.

Connect the corrugated hose from the transition to the trap.

Secure connections with clamps.

Connect the black 1/2" (12.7mm) ID drain tube from the Vent Drain

to the trap. Ifan extension is required, use the 1/2" (12.7mm) OD

barbed coupling and the black 1/2" (12.7mm) ID drain tube in the

loose parts bag. Cut tube to length. Secure connections with

clamps.

Connect the 3/16" (4.8mm) ID relief tube to the middle port on the

trap. If an extension is required, use the clear 3/16" (4.8mm) OD

splice connector and the black 3/16'' (4.8mm) ID relief tube in the

loose parts bag. Cut tube to length.

Cut an appropriate length of 2" (50.8mm) PVC pipe, fittings and

extension pipe long enough to exit the cabinet and connect the

vent drain to either:

• A 2" (50.8mm) PVC coupling fastened onto the drain tee

Install tee trap into bottom section of tee and glue pipe.

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

the tee trap

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

shown in Figure 20.

Note: It is recommended that all PVC piping and fitting

connections be fit up and inspected before final cementing. Both

the external trap and the external tee trap must be primed

before operation. Verify all condensate drain connections are

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

be installed as shown for future servicing of the vent system.

440 01 202401 Specificationsare subject to changewithout notice. 27

iiiiii!!iiiiiii!iiiiii_iiiii!ii__ii[iiiiiiii_I!i_;1iiiiiii_i!iiiiiiiiiiii_i1iiiii_iiiIiii_iii!!!iiiii_iii1i!!!iiiiYi1iiIiIiii;_

Connecting Tee Trap to Condensate

Trap and Main Drain Line

Open Tee

Condensate Trap

Representative drawinq only_ some models may vary in appearance,

The tee trap must be connected to the main condensate drain line

as conceptually shown above. Different installations may require

slightly different orientations. The following steps apply to all

installations.

1. The tee trap should be installed as close to the side or top of

the furnace as practical. Minimize the distance between the

inducer and the tee trap as much as possible.

2. An open tee is to be used at the tee trap discharge. The top

end of the tee should be open to the atmosphere to

eliminate potential air lock problems.

3. The drain line from the tee trap is to be connected to the

furnace condensate trap drain line as shown above.

4. Condensate drain lines from a cooling coil may be

connected downstream of the connection point of the tee

trap and furnace condensate trap.

Important: Prime both traps with water before operation.

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

the condensate drain line and open tee for a period of time, and

may result in temporary lockout of the furnace upon start up. Main

drain line construction is left to the discretion of the installer. It may

be made of either ridged pipe or flexible tube. Tube ID should NOT

be less than 1/2, (12.7mm).

ConnectingVent and Combustion Air Piping

CARBON MONOXIDE POISONING HAZARD

Failure to properly seal vent piping could result in

personal injury or death.

Cement or mechanically seal all joints, fittings, etc.

to prevent leakage of flue gases.

Refer to Figure 11 through Figure 19 that corresponds to the

installation position of the furnace for the application.

Preassembte the vent and combustion air piping from the furnace

to the vent termination. Do not cement the pipe joints until the pipe

preassembly process is complete.

Combustion Air Pipe Connection (Direct Vent)

Install the air intake coupling and gasket to the furnace with the

four(4) screws.

Note: The air intake coupling and gasket can be installed to the top

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

side panels of the furnace.

For downflow installation, the air intake coupling and gasket must

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

right side panels. Remove the 3" (76.2mm) hole plug from the

furnace accessory bag and relocate to the open hole in the furnace

panel. Use four screws to seal the four mounting holes in the top

panel next to the hole plug. Drill four 7/64" (2.8mm) diameter holes

in the casing using the air intake coupling as the template.

The air intake coupling is sized for 2" (50.8mm) PVC pipe.

Install the combustion air pipe to the air intake coupling using RTV

sealant to provide for future serviceability.

Vent Pipe Connection

Install the vent pipe grommet to the furnace panel. Locate the

grommet in the furnace panel at a location directly away from the

vent fitting on the combustion blower. The grommet snaps into the

3" (76.2mm) hole from the furnace panel. NOTE: Depending on the

installation position, the vent pipe grommet will be installed to the

top panel or to the alternate location on the side panels. If needed,

remove the 3" (76.2mm) hole plug from the loose parts bag and

install it in the open hole in the furnace panel. (See Figure 11 or

Figure 20)

Install the vent pipe to the rubber coupling, the vent fitting or the

PVC vent extension pipe. Securely attach using the clamp or PVC

cement as required.

Note: The vent fitting MUST be installed with the air flow

marking arrow pointed toward the vent pipe. (See Figure 21)

Some installations require the vent fitting to be installed with

a 5°to 10°downward slope. (See Figure 11thru Figure 20)

ro erSeo.ng rooe.ure,or

Combustion Blower

Rubber Coupling i ._ Vent Pipe

_ .... (Top Panel Exit)

&Clamps

_-, VejntPipe _:_:

NOTE: Built-in channelwill be angled 5° to 10° also. 25-24-14a

28 Specificationsare subject to changewithout notice. 440 012024 01

Joining Pipe and Fittings

SEE VENT AND COMBUSTION AIR PIPING, Vent and

Combustion Air Piping Guidelines inthis manual for applicable

ASTM Standards for vent materials.

CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in

personal injury or death.

Do NOT use solvent cement that has become

curdled, lumpy or thickened and do NOT thin.

Observe precautions printed on containers. For

applications below 32°F(0°C), use only low

temperature type solvent cement. Poor joints may

lead to disconnected or leaking vent pipe joints

allowing carbon monoxide to enter the living space.

1. Cut pipe end square, remove ragged edges and burrs.

Chamfer end of pipe, then clean fitting, socket and pipe joint

of all dirt, grease, or moisture.

NOTE: Stir the solvent cement frequently while using. Use a

natural bristle brush or the dauber supplied with the cement. The

proper brush size is one inch.

2. After checking pipe and socket for proper fit, wipe socket

and pipe with cleaner-primer. Apply a liberal coat of primer

to inside surface of socket and outside of pipe. Do NOT

allow primer to dry before applying cement.

3. Apply a thin coat of cement evenly in the socket. Quickly

apply a heavy coat of cement to the pipe end and insertpipe

into fittings with a slight twisting movement until it bottoms

out.

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

pipe.

4. Hold the pipe in the fitting for 30 seconds to prevent the

tapered socket from pushing the pipe out of the fitting.

5. Wipe all excess cement from the joint with a rag. Allow 15

minutes before handling. Cure time varies according to fit,

temperature and humidity.

ConnectingVent Pipes andTermination

NOTE: Combustion air intake and vent MUST terminate in the

same atmospheric pressure zone. If installation isin a cold climate

(sustained temperatures 0°F (-17°C) and below for 24 or more

consecutive hours), increase the minimum distance between vent

pipe and air intake from 8" (203.2mm) to 18"(457.2mm).

CARBON MONOXIDE POISONING HAZARD

Failure to properly vent this furnace could result

in personal injury or death.

Maintain a minimum of 36" (914.4mm) between

combustion air inlet and clothes dryer vent.

Terminate the combustion air intake as far as

possible from any air conditioner, heat pump,

swimming pool, swimming pool pumping,

chlorinator or filtration unit.

1. Install all couplings, nipples and elbows using proper

procedures for Joining Pipe and Fittings and maintain

spacing between vent and combustion air piping as

indicated in Figure 22 through Figure 30.

Sidewall Termination 12" (304.8mm)or

More Above Snow Level or Grade Level

8" (203.2mm)* MIN.

20' (6.1m) MAX 7'_ '18" (457.2mm) Minimum for

ii J_" coldclimates [sustained0°F

_i (-17°0) and below for 24or

more consecutivehours]

j 8" (203.2mm) MIN.

":::_ J\ /12 " (304.8mm) MIN.

_-_ _ GRADE LEVEL

SNOW LEVEL 25-00-05F

Horizontal Termination

1. Cut two holes. 21/2,' (63.5mm) for 2" (50.mm) pipe, 3"

(76.2mm) for 21/2" (63.5mm) pipe, or 31/2 ,' (88.9mm) for 3"

(76.2mm) pipe. Do NOT make the holes oversized, or it will

be necessary to add a sheet metal or plywood plate on the

outside with the correct size hole in it.

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

couplings or elbows that will be installed on the outside. The

couplings or elbows MUST prevent the pipe from being

pushed back through the wall.

3. Extend vent pipe and combustion air pipe through the wall

3/4" (19.1mm) to 1" (25.4mm) and seal area between pipe

and wall.

4. Install the couplings, nipple and termination elbows as

shown and maintain spacing between vent and combustion

air piping as indicated in Figure 22 and Figure 23.

A metal shield is recommended 18" x 18" (457.2mm x 457.2mm)

min. or 18" (457.2mm) min. diameter around the vent termination

at the exterior walt to protect the house exterior materials from flue

product or condensation (freezing) damage.

Using Exterior Risers

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

2. Secure vent pipe to wall with galvanized strap or other rust

resistant material to restrain pipe from moving.

3. Insulate pipe with Armaflex or equivalent moisture resistant

closed cell foam insulation or Fiberglass insulation if boxed

in and sealed against moisture.

Vertical Termination

1. Figure 25 shows the proper installation and clearances for

vertical vent termination. The vertical roof termination

should be sealed with a plumbing roof boot or equivalent

flashing. The inlet of the intake pipe and end of the exhaust

vent must be terminated no less than 12" (307.8mm) above

the roof or snow accumulation level, and 12" (307.8mm)

away from a vertical wall or other protrusion.

440 01 202401 Specificationsare subject to changewithout notice. 29

2. If the vent system is installed in an existing chimney make

sure clearances shown in Figure25 are maintained.

Horizontal section before the termination elbow can be

extended on the inlet air to provide necessary clearance.

Sidewall Termination with Exterior

Risers to Get Above Snow Level or Grade

Level

8" (203.2mm)* MIN.

2O' (6.1m) MAX

'18" (457.2mm)Minimumfor

coldclimates [sustained0°F

(-17°C) and below for 24 or

more consecutivehours]

, 8" (203.2mm)

MIN.

2 )

25-00-04F

Recommended Alternate Installation

for SustainedColdWeather[0°F(- 17°C)&belowfor 24

hoursor moreconsecutivehours]

EXHAUST 12" (304.8mm)MIN.

FRONT VIEW

/-y

Same Joist

Space

SlDE VlEW

Rooftop Termination

________________________________________________________________________________________________________________________________________________

25 O0 06

_'i!_ :c. our., tduhoeem°ii!ii!(!iiadms)

Vent Termination Shielding

Under certain wind conditions some building materials may be

affected by flue products expelled in close proximity to unprotected

surfaces. Sealing or shielding of the exposed surfaces with a

corrosion resistant material (such as aluminum sheeting) may be

required to prevent staining or deterioration. The protective

material should be attached and sealed (if necessary) to the

building before attaching the vent terminal.

Multi Vent Termination Clearances

When two (2) or more furnaces are vented near each other, each

furnace must be individually vented.

Two (2) vent terminations may be installed as shown in Figure 26,

Figure 27, Figure 28, Figure 29, and Figure 30 but the next vent

termination must be at least 36" (914.4mm) away from first two

terminations. It is important that vent terminations be made as

shown to avoid recirculation of flue gases.

iiiHiii!iiii ii!Tiiiiiii

________________________________________________________________________________________________________________________________________________

._7- JJ'-'-"' -

s°"nw 2:L'

Concentric Vent and Combustion-Air

Roof Termination

Max 36" Min

30 Specifications are subject to changewithout notice. 440 012024 01

Concentric Vent and Com bustion-Air

................................................................................................................................................Sidewall Termination

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

.... - j__- ._j.J_-

..... _.-----_- j JJ .fj ._- J _.... .-J_

j jjJJJ- .____ ......

/JJ j z- .......

j .... J_

.... .......""-_i _._,, (25.4mm)................-...........

CombustionAir _-J- Maximum ..............

Vent 25-22-02d

Dimension "A" is touchin.q or 2" (50.8mm) maximum separation.

i!' Sidewall Inlet Vent and Exhaust-Air

................................................................................................................................................Termination

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

.s_.> Z i'_<-- j _-%J<_ J- . f ._z-_jJ __ / J'_F 8 Mln

"J" _-"'-r-_--s'T- -<J--_"7- --j Exhaust .... "W_ - .

.... --< J_ "A...... /Q -:-- :{]]J '_\

k _ _ _ _ ........ _........ 20'(6,1m) Max............

12"(304.8mm) Min. ........... 18" (457.2mm) Min. for Cold Climates

Grade or Snow Lev_LJ.... [Sustained0°F(-17°C)and below for

/24 hours or more consecutivehours]

jj.JJDimension 'W' is touching or 2" (50.8mm) maximum separation.

Sidewall Inlet Vent and Exhaust-Air

....................................................................................................................................Termination with Exterior Risers

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

;_ ___ _ 8" (203.2mm)Min. _._-_ .... .-_ _- 8" (203.2mm)Mm,

....:i_ _7.- _ -i---20'(6.1m) Max. --'_.-_ /" ,1 F_.\ Ji

:;-_---_M;%_-O-';---<%.... /' _ '_-L .....

--_ _--J- i k ._7\ -jk y "t

;;7 Exhaust \i :::: -j_ /_ __ ___--j ..... r'_P_./ 12" (457.2mm)

7" 7-_ ' 1"] -_-i _ _ In/at Mn Gradeor

.i, /_ __;J_j _. Snow Level

i k _ ........ f---¥

'L _ __ _A I "A..... ---

1"]_" "_- -/ 18" (457.2mm)Min. for Cold Climates

L {_ . . "A;; [Sustained0°F(- 17°C) and belowfor

_--_ .... 24 hoursor moreconsecutivehours]

_/: T-_IV

Dimension"A" is touohinq or 2" (50.8mm) maximum separation.

iMIIiiiiiiIIiiiMI{!!i1i1liiIiiiiiiilll}illiiiiiiliiiiiiIiitiiiiiD:;iiiiilliiiiIJi

, Roo.opInletVentandExhaust-A,r

................................................................................................................................................Termination

\\ 8" (203.2mm)-Mi-n] "-Y-/',-;_-] I-- ,,

\, \, 20' (6,1m)Max. _" \,,. .... "

\,,\\ .......t ___,Inlet _ll i_-- ,__.;_ _]__---"-' ....

', ' _.__J- \ _l -- .....

\ \, . -......', _-k---f- i ....--" :-c.M',_,L-_;,7x

'\ Y-" "......... J \, "t,k 41_)x4- -b--_

12" 1304.8mm1_"\\, '_I._"",,_ _¢ ;' _*---x ........ "_EExhaust

Min. Grade or ',, \, _J-T--', ........... _",---_,.- ",.---_- ',............

Snow Level _---'_',]x',7°-_7'---_;'s_-,,....... ql- _--'Y--'+{('" _-"........... _....

'\,\',c---}s-J"_j-. _' ........... 18" (457.2m-m)-Mln,for Cold Climates

\ '%_...... '--- _.............. [Sustained0°F(-17°C) and belowfor

i"YI.................. 24 hoursor more consecutivehours]

26-22-43

5. Concentric Vent Termination

Vent Termination Clearances

Failure to properly vent this furnace could result in

personal injury or death.

Inlet and outlet pipes may NOT be vented directly

above each other (standard vent terminals).

5. The venttermination is to be located at least 3' (.91 m) above

any forced air inlet located within 10' (3m); and at least 10'

(3m) from a combustion air intake of another appliance,

except another direct vent furnace intake.

6. In Canada, the Canadian Fuel Gas Code takes precedence

over the preceding termination instructions.

ConcentricVentTermination

Kit #NAHA001CV& NAHA002CV

1. Determine termination locations based on clearances

specified in following steps and as shown in Figure 8,

Figure 31 through Figure 36.

2. The vent termination must be located at least 12"

(304.8mm) above ground or normally expected snow

accumulation levels.

3. Do NOT terminate over public walkways. Avoid areas

where condensate may cause problems such as above

planters, patios, or adjacent to windows where steam may

cause fogging.

4. The vent termination shall be located at least 4' (1.2m)

horizontally from any electric meter, gas meter, gas

regulator, and any relief equipment. These distances apply

ONLY to U.S. installations.

For Concentric Vent Termination information call 931.270.4100

with the complete model and serial number of the furnace.

Special Venting Requirements for Installations in Canada

Installation in Canada must conform to the requirements of CSA

B149 code. Vent systems must be composed of pipe, fittings,

cements, and primers listed to ULC S636. The special vent

fittings and accessory concentric vent termination kits and

accessory external drain trap have been certified to ULC S636

for use with those 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 -

IPEX System 636, PVC/CPVC Primer, Purple Violet for Flue

Gas Venting and IPEX System 636(1) TM, 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

440 01 202401 Specifications are subject to changewithout notice. 31

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 CSA B149 is dependent upon full

compliance with all installation instructions. Under this

standard, it is recommended that the vent system be checked

once a year by qualified service personnel.

The authority having jurisdiction (gas inspection authority,

municipal building department, fire department, etc) should be

consulted before installation to determine the need to obtain a

permit.

Consignes sp6ciales pour I'installation de ventillation au

Canada

L'installation faite au Canada doit se conformer aux exigences

du code CSA B149. Ce syst_me de ventillation dolt se

composer de tuyaux, raccords, ciments et appr_ts conformes

au ULC $636. La tuyauterie de ventillation des gaz, ses

accessoires, le terminal concentrique mural ainsi que

I'ensembte du drain de condensat exterieur ont et6 certifies

ULCS 636 pour I'application des composantes IPEX PVC qui

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

doivent _tre du m_me manufacturier que le syst_me de

ventillation - IPEX Systeme 636, Appr_t PVC/CPVC. Mauve

Violette pour conduit en evacuation des gaz et IPEX Systeme

636(1)TM , ciment pour PVC pour conduit en evacuation des gaz,

evalu6 CLASSE IIA, 65 deg. C. doit _tre utilise avec ce

systeeme d'evacuation - ne pas melanger I'appr_t et le ciment

d'un manufacturier avec le syst_me de ventillation d'un autre

manufacturier. 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.

L'operation securitaire, tel que definit par ULC $636, du

systeme de ventilation est base sur les instructions d'installation

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 CSA B419 est directement relie & I'installation

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'instatlation afin de determiner si un permis

est requis.

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

These kits are for vertical or horizontal termination of the

combustion air inlet and the exhaust vent pipes on Category IV

gas-fired condensing furnaces. The NAHA001CV kit can be used

for 3" (76.2mm) diameter pipe systems. The NAHA002CV kit can

be used for 2" (50.8mm) diameter pipe system. Refer to Table 5 for

the correct pipe size for the furnace. Both the combustion air inlet

and the exhaust vent pipes must attach to the termination kit. The

termination kit must terminate outside the structure and must be

installed per the instructions outlined below for vertical or

horizontal termination. Vertical termination is preferred. Field

supplied pipe and fittings are required to complete the installation.

Vertical & Horizontal Termination

1. Determine the pipe diameters required for the installation

from Table 5 and Figure 33,

2. Determine the best location for the termination kit. See

Figure32 for vertical termination or Figure36 and

Figure 36 for horizontal termination. Roof termination is

preferred since it is less susceptible to damage, has

reduced intake contaminants and less visible vent vapor.

For side wall termination, consideration should be given to:

1) possible damage from the vapors to plants/shrubs, other

equipment and building materials, 2) possible damage to

the terminal from foreign objects, 3) wind effects that may

cause recirculation offlue products, debris or light snow and

4) visible vent vapor.

Kit Components in(mm)

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

Kit Contents:

3" (76.2)Rain Cap or 2" (50.8) RainCap

3" (76.2) Diameter SDR-26 Pipe, 191/2`' (495.3) Long or

4" (101.6)DiameterSDR-26 Pipe,24" (609.6)Long,

2" (50.8)Diameter SDR-26 Pipe,315/8`' (803.3) Longor

21/2" (63.5) DiameterSDR-26 Pipe,37t/8" (973) Long, 2" (50.8)or 3"

3" (76.2)Y ConcentricFitting or 2" (50.8)Y Concentric Fitting (76.2)Dia.

RainCap

Nominal3" (76.2) or4" \

) or3" (76.2)Dia. 2 (50.8)or 21/2" (63.5)

Y ConcentricFitting Dia.SDR-26 Pipe 25-22-03

i ii iii

Concentric Vent Roof Installation

Vent A Maintain 12" (304.8mm)

Tmin. clearance above high-

est anticipated snow level.

/' \ Max. of 24" (609.6mm)

Combustion __ above roof.

Air [ _!s(

RoofBoot/ \ I .................

Flashing _. i_---;' .............

(Field Supplied) _1_:/; ;_../,_"

"::::::_ (Field Supplied)

45° Elbow

(Field Supplied)

Vent

Combustion

Air

L/: L,O 25-22-02

Note:

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

Cut one 5" (127mm)diameter hole through the structure for

the NAHA001CV Kit or one 4" (101.6mm)diameter hole for

the NAHA002CV Kit.

Dimension D may be lengthened to 60" (1524mm)max. or

shortened by cutting the pipes to 12" (304.8mm) min.

Dimension A will change according to D dimension. (See

Figure 33)

32 Specificationsare subject to changewithout notice. 440 012024 01

Concentric Vent Dimensional

Drawing -in(mm)

B PVC I

---PVC Intake/Combustion

Air

Model A* B C D**

NAHA002CV 333/8 2 31/2 165/8

(847.7) (50.8) (88.9) (422.3)

NAHA001CV 387/8 3 41/2 211/8

(987.4) (76.2) (114.3) (536.6)

*= Dimension will change accordingly as dimension D is

lengthened or shortened.

**= Dimension D may be lengthened to 60" (1524mm) may also

be shortened

by cutting the pipes provided in the kit to 12" (304.8mm) min-

imum

Concentric Termination Kit

NAHA001CV &NAHA002CV Venting

Table Dual Piping ONLY

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

NAHA002CV - 35' (10.7m) & (4) 90° elbows

with 2" (50.8mm) PVC pipe

80,000, 100,000 &125,000 Btuh Furnaces

NAHA001CV -35' (10.7m)& (4) 90° elbows

with3" (76.2mm) PVC pipe

1. Do not include the field supplied 45 °elbow in the total

elbow count.

2. If more than four elbows are required, reduce the length

of both the inlet and the exhaust pipes five feet for each

additional elbow used.

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

(76.2mm) vents.

NOTE: The minimum vent length is 5' (1.5m) of PVC. Feet of

pipe is whichever pipe run is the longest, either inlet or

outlet side.

If more than four elbows are required, reduce the length of

both the inlet and exhaust pipes 5' (1.5m)for each additional

elbow used.

* Feet of pipe is whichever pipe run is the longest, either inlet

or outlet side.

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

thickness requirement, the two pipes supplied in the kit may be

replaced by using the same diameter solid, single (no coupling

connections) field supplied SDR-26 PVC (ASTM D2241) pipes.

Do not extend dimension D more than 60"(1524mm). (See

Figure 33)

Do not use field supplied couplings to extend the pipes.

Airflow restriction will occur and the furnace pressure switch

may cause intermittent operation.

5. Partially assemble the concentric vent termination kit.

Clean and cement the parts using the procedures for

Joining Pipe and Fittings section of the manual. A) Cement

the Y Concentric fitting to the longest of the two straight kit

pipes. (See Figure 34) B) Cement the rain cap to the

shortest of the straight kit parts. (See Figure 34) NOTE: A

field supplied stainless steel screw may be used to secure

the rain cap to the pipe instead of cementing when field

disassembly is desired for cleaning (See Figure 34)

iiMiiMiiiii:iiiii!iiii!i!iliiii_;iiiiiii!ii_!i!iiii/iiiiii!_!i_iii!!_i_il¸il¸;iiiiii!i;_ii!iiiiiiii/iiiiiiii!i;

_i_'_i Rain Cap to Vent Pipe Assembly

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

25-22-02

Drill clearance hole in rain cap and pilot hole in

vent pipe. _-___

Stainless steel screw

(Field supplied)

CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in

personal injury or death.

When using the alternate screw assembly

method, drill a clearance hole in the rain cap and a

pilot hole in the vent pipe for the screw size being

used. Failure to drill adequate holes may cause

cracking of the PVC components, allowing flue

gases to be recirculated.

6. Install the Y concentric fitting and the pipe assembt

through the structure's hole. For vertical termination, install

the parts through the field supplied roof boot/flashing.

NOTE: Do not allow insulation or other materials to

accumulate inside the pipe assembly when installing

through the structure's hole.

CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in

personal injury or death.

Do not operate the furnace with the rain cap

removed as recirculation of the flue gases may

occur. Water may also collect inside the larger

combustion air pipe and flow to the burner

enclosure.

Secure the assembly to the structure as shown in Figure 32

or Figure36 using field supplied metal strapping or

equivalent material.

NOTE: Ensure the termination height is above the roof

surface or anticipated snow level as shown in Figure 32 for

vertical termination. Ensure the termination location

clearance dimensions are as shown in Figure 35 and

Figure 36 for horizontal termination.

Install the rain cap and the small diameter pipe assembly in

the Y concentric fitting and the large pipe assembly. Ensure

that the small diameter pipe is bottomed out and securely

cemented in the Y concentric fitting.

9. Cement the furnace combustion air and vent pipes to the

concentric vent termination assembly. See Figure 32 or

Figure 36 for proper pipe attachment.

10. Operate the furnace through one heat cycle to ensure

combustion air and vent pipes are properly connected to the

concentric termination connections.

440 01 202401 Specificationsare subject to changewithout notice. 33

Biiiiiiiii:iiiii}iiii!i!iliiii_;iiiiiiDDDi_Ji!iiiiUiiiiii!_!i_iii!!_iiii_,ii'@i_,i!,iliii:i:i@

ii//liiiiiii/!i i! !i !i iiiiConcentricVentandCombuetion-Air

Side Termination

A RoofOverhang

l-y J:

_ 1" (25 4mm) m-_ia;x.......... 1-_ t i(30_i-_m )

..........g ..........:N :j_- Air ..............::............/

..... ; .......-'_( ...... i Maintain 12"

._f-J (304.8mm) clearance

..............-V above highest anticipated snow level

or grade whichever is greater.

25-22-02

_lgurQ_; ; Concentric Vent Sidewall

Attachment

Air

(Field Supplied) 25-22-02

Note:

Securing strap must be field installed to prevent movement of termina-

tion kit in side wall.

6. Gas Supply and Piping

FIRE AND EXPLOSION HAZARD

Failure to follow these instructions could result in

personal injury, death and/or property damage.

Models designated for Natural Gas are to be used

with Natural Gas ON L¥, unless properly converted to

use with Propane gas.

NOTE: The rating plate is stamped with the model number, gas

type and gas input rating. In addition, models manufactured for

sale in Canada have orifice size information stamped on the rating

plate.

Gas Supply Requirements

Gas supply. Refer to Table7, Table 8,

Table 10 for manifold pressures.

QooPreooureo

{ [[[[[[[[[[[[[[[[[[[[[[[[[[

Do not allow minimum supply pressure to vary downward.

Doing so will decrease input to furnace. Refer to Table 6 for

Table 9 and

Gas Type Supply Pressure

Recommended Max. Min.

Natural 7 in wc 14 in wc 4.5 in wc

(1744 Pa) (3487 Pa) (1121 Pa)

Propane 11 in wc 14 in wc 11 in wc

(2740 Pa) (3487 Pa) (2740 Pa)

Gas Piping Requirements

NOTE: The gas supply line must be installed by a qualified service

technician in accordance with all building codes.

NOTE: In the state of Massachusetts.

FIRE HAZARD

Failure to properly set input pressure could result

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

Do NOT set input rating above that shown on rating

plate.

Gas supply pressure should be within minimum and maximum

values listed on rating plate. Pressures are usually set by gas

suppliers.

(See Propane Gas Conversion Kit instruction manual for furnaces

converted to Propane gas)

•Use only the Type of gas approved for this furnace. See

rating plate for approved gas type.

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

connection,must be installed immediately upstream of the

gas supply connection to furnace.

• Gas supply pressure should be within minimum and

maximum values listed on rating plate. Pressures are

usually set by gas suppliers.

• Gas input must not exceed the rated input shown on the

rating plate. Overfiring will result in failure of heat exchanger

and cause dangerous operation.

a. Gas supply connections MUST be performed by a

licensed plumber or gas fitter.

b. When flexible connectors are used, the maximum length

shall not exceed 36" (915 mm).

c. When lever handle type manual equipment shutoff

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

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

by the state of Massachusetts.

Install gas piping in accordance with local codes, or in the

absence of local codes, the applicable national codes. Refer

to NFPA 54/ANSI Z223.1 for proper gas pipe size.

It is recommended that a manual equipment shutoff valve be

installed in the gas supply line outside the furnace. Locate

valve as close to the furnace as possible where it is readily

accessible. Refer to Figure 37.

Use black iron or steel pipe and fittings or other pipe approved

by local code.

Use pipe thread compound which is resistant to natural and

Propane gases.

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

(76.2mm) long to trap dirt and moisture before it can enter gas

controlvalve inside furnace.

Use two pipe wrenches when making connections to prevent

gas valve from turning.

34 Specificationsare eubject to changewithout notice. 440 012024 01

7. Install a manual shut-off valve external to furnace casing and

tighten all joints securely.

8. If local codes allow the use of flexible gas appliance

connectors, always use a new listed connector.

Do not use a connector which has previously serviced

another gas appliance.

9. Flexible corrugated metal gas connector may NOT be used

inside the furnace or be secured or supported by the furnace

or ductwork.

10. Properly size gas pipe to handle combined appliance load or

run gas pipe directly from gas meter or Propane gas regulator.

NOTE: Refer to Figure 37 or Figure 38 for the general layout at

the furnace. The rules listed apply to natural and Propane gas pipe

installations.

NOTE: On the Dual Certified or Direct Vent models, install the gas

pipe grommet to the furnace side panel with the gas pipe entry. If

needed, remove the 2" (50.8mm) hole plug from the plastic

accessory bag and relocate to the open hole in the furnace side

panel.

FIRE OR EXPLOSION HAZARD

Failure to properly install metal gas connector could

result in personal injury, death, and/or property

damage.

Aflexible corrugated metal gas connector must be

properly installed, shall not extend through the side

of the furnace,and shall not be used inside the

furnace.

Black iron pipe shall be installed at the furnace gas

control valve and extend a minimum of 2" (50.8mm)

outside furnace casing.

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

12. Measure pipe length from gas meter or Propane second

stage regulator to determine gas pipe size.

:i i i i:

::__iil :ii_ Typical Gas Piping for Upflow

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

.Vent Pipe Grommet

Drip Leg and Union, Union should be outside the "Sin-le Pi-e_ \ __

cabinet. Manual shut-off valve MUST be upstream of -. (_vJ \ .. _'i_ i .i_

dripleg, union, and furnace. ,, "......... Manualshut-off iiX /_ ', _ ._ .........

3 (76.2mm) ...._. valve-... _ '_ _'_ _I _

•'-_ .... t; -_ _ _J ×_-_

" ................ Ienl le "..... _-.._ _" _ _

Use elbows and 3 (76.2mm) p,pe topple P P PP _ .<_.\.\ ...._ .... _ _'< _r_ _ _ i

to connect valve to piping when using \_\_\ _.\ _ ....... " _ _ _3 _'_ _

right side gas pipe entry. _ _ _)_)@_ ......._J "_" _ _ _ i

X -_; / -_ "_ installationi

* Union may be installed inside the cabinet when necessary because of clearances. \_

Reoresentative drawino only. some models mayvary in aooearance. \ 25-2/°_-°5-45

440 01 202401 Specificationsare subject to changewithout notice. 35

Use elbows and 3" (76.2mm) pipe nipple to connect .................. S_.

valve to piping when using left side gas pipe entry._ j _ ._s i _'_

__ _S_ /Propane Low pressure k_ _-cc.i /ii _l N

t "_/ switch. Optional _ _ _ i ,-_ _k_i _

_Propane conversion. _ ................. ,\ _ c_@ -i _

............ Manualshut-off "qi'

_ _7_ Alternative ii

* net _._ _ _ nstallation

Drip Leg and Union, Union should be outside the cabi .JJ /_4_ _.

Manual shut-off valve MUST be upstream of dripleg, unio_ /'_ _ /.....

and furnace, i _ _-°_

Vent Pipe Grommet "_'_'_ _

*Union may be installed inside the cabinet when necessary "Sin le Pi e" \_.-.._J- _\ w//

because of clearances. !. g P) \\_C il_ _j

Representative drawing only, some models mayvary in appearance. "q

Additional Propane Connection Requirements

1. Have a licensed Propane gas dealer make all connections

at storage tank and check all connections from tank to

furnace.

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

National Fuel Gas Code or CGA codes.

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

3. For operation with Propane gas, gas orifices MUST be

changed and manifold pressure MUST be maintained as

per Table 9 and Table 10. Orifices can be ordered through

our distributor. (See Figure 39)

*Based on mid-range of elevation.

4. In cases where Table 7 or Table 8 is not applicable, eg.

alternate input rate application, refer to above table for

required high altitude input rate.

PropaneConversion

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

the furnace rating plate for the Propane conversion accessory kit

part number.

FIRE, EXPLOSION HAZARD

Failure to followthis warning could result in death,

property damage and/or personal injury.

A propane conversion accessory kit is required

when operating the furnace with Propane gas.

GeneralDeratingRules

1. These furnaces may be used at full input rating when

installed at altitudes up to 2,000' (609.6m). When installed

above 2,000' (609.6m), the input must be decreased 2%

(Natural) or 4% (Propane) for each 1000' above sea level in

the USA. In Canada, the input rating must be derated 5%

(Natural Gas) and 10% (Propane Gas) for altitudes 2000' to

4500' (609.6 to 1371.6m) above sea level.

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

(609.6m), orifice change and/or manifold pressure

adjustments may be required for the gas supplied. First

consult your local gas supplier, then refer to Table 7 or

Table 8 for required pressure change and/or orifice change

for high altitudes.

High Altitude Input Rate =

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

High Altitude MultiplierElevation

ft (m)

2001' - 3000'

(609.9 - 914.4)

3001' - 4000'

(914.7 - 1219.2)

4001' - 5000'

(1219.5 - 1524)

5001' - 6000'

(1524.3- 1828.8)

6001' - 7000'

(1829.1 - 2133.6)

7001' - 8000'

(2133.9 - 2438.4)

Natural Gas Propane Gas

0.95 0.90

0.93 0.86

0.91 0.82

0.89 0.78

0.87 0.74

0.85 0.70

HighAltitudeAir PressureSwitch

Altitudes over 4,000' (1219.2m) may require a different air

pressure switch than the one installed at the factory. Check parts

list for pressure switch and consult your distributor for part number

and availability. In Canada, provincial codes may govern

installation of switch. Check with governing authorities.

* In the USA, derating of these furnaces at 2% (Natural Gas)

and 4% (Propane Gas) has been tested and design-certified

by CSA.

In Canada, the input rating must be derated 5% (Natural Gas)

and 10% (Propane Gas) for altitudes of 2,000 to 4,500 (609.6

to 1371.6m) above sea level. Use the 2001 to 3000 (609.9 to

914.4m) column in Table 7, Table 8, Table 9, and Table 10.

36 Specificationsare subject to changewithout notice. 440 012024 01

MANIFOLDPRESSUREAND ORIFICESIZE FORHIGHALTITUDEAPPLICATIONS

HEATING

VALUEat

ALTITUDE

BTU/CU.FT.

NATURAL GAS MANIFOLD PRESSURE (in wc)

MEAN ELEVATION ABOVE SEA LEVEL ft(m)

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

(0to 609.6) (609.9to 914.4)* (914.7to 1219.2) (1219.5to 1524) (1524.3to 1828.8) (1829.1to 2133.6) (2133.9to 2438.4)

Orifice MnfldPressure Orifice MnfldPressure Orifice MnfldPressure Orifice MnfldPressure Orifice MnfldPres- Orifice MnfldPres- Orifice MnfldPres-

No. No. No. No. No. sure No. sure No. sure

HI LO HI LO HI LO HI LO HI LO HI LO HI LO

700 4t 3.7 1.8

725 ; _- . ,_ 4t 3.7 1.8 4t 3.4 1.7

750 4t 3.5 1.7 42 3,6 1,7

775 ............................................4t 3.6 1.7 42 3,6 1,8 42 3,3 1,6

800 _. _-' 4t 3.6 1.8 42 3,7 1,8 42 3,4 1,7 42 3,1 1,5

825 ,_ =,,_'_ =,'41 3.7 1.8 4t 3.4 1.7 42 3,5 1,7 42 3.2 1.6 43 3.6 1.8

850 :_=,,,_;.-_ 41 3.5 1.7 42 3,6 1,7 42 3,3 1,6 43 3.7 1.8 43 3.4 1.7

875 4t 3.6 1.7 42 3.6 1.8 42 3.4 1.6 42 3.1 1.5 43 3.5 1.7 43 3.2 1.6

900 42 3,7 1,8 42 3,4 1,7 42 3.2 1.6 43 3.6 1.7 43 3.3 1.6 44 3.5 1.7

925 4t 3.7 1.8 42 3,5 1,7 42 3,3 1.6 43 3.7 1.8 43 3.4 1.7 43 3.1 1.5 44 3.3 1.6

950 4t 3.5 1.7 42 3,3 1,6 42 3,1 1.5 43 3.5 1.7 43 3.2 1.6 44 3.4 1.7 44 3.1 1.5

975 42 3,7 1,8 42 3.2 1.6 43 3.6 1.8 43 3.3 1.6 44 3.5 1.7 44 3.2 1.6 45 3.6 1.7

1000 42 3,5 1,7 43 3.7 1.8 43 3.4 1.7 43 3.1 1.5 44 3.3 1.6 45 3.7 1.8 45 3.4 1.7

1050 42 3.2 1.6 43 3.3 1.6 43 3.1 1.5 44 3.3 1.6 45 3.6 1.8

1100 43 3.6 1.7 44 3.5 1.7 44 3.2 1.6 45 3.6 1.8

Conversion:1in wc=249Pa

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

Z223.1-2006/N FPA 54-2006 or National Standard of Canada, Natural Gas and Propane Installation Code CSA B 149.1-05.

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

In Canada, the input rating must be derated 5% (Natural Gas) and 10% (Propane Gas) for altitudes of 2,000 to 4,500 (609.6 to

1371.6m) above sea level. Use the 2001 to 3000 (609.9 to 914.4m) column in Table 7, Table 8, Table 9, and Table 10.

NATURAL GAS MANIFOLD PRESSURE (in wc) 20,000 BTU per burner

MEAN ELEVATION ABOVE SEA LEVEL ft(m)

7001to 8000

(2133.9to 2438.4)

Orifice MnfldPres-

No. sure

0to 2000

HEATING (0to 609.6)

VALUEat Orifice MnfldPres-

ALTITUDE No. sure

BTU/CU.FT. HI LO

2001to 3000* 3001to 4000 4001to 5000 5001 to 6000 6001to 7000

(609.9to 914.4)* (914.7to 1219.2) (1219.5to 1524) (1524.3to 1828.8) (1829.1to 2133.6)

Orifice MnfldPres- Orifice MnfldPres- Orifice MnfldPres- Orifice MnfldPres- Orifice MnfldPres-

No. sure No. sure No. sure No. sure No. sure

HI LO HI LO HI LO HI LO HI LO HI LO

700 _, ,_,_ , ,_ 44 3.7 1.8

725 .......................................................................................................................................................................................................................................44 3.7 1.8 44 3.4 1.7

750 _'. _. _ . ._ 44 3,5 1,7 44 3,2 1,6

775 '; 44 3,5 1,7 44 3,2 1,6 46 3.8 1.9

800 # 44 3,6 1,8 44 3,3 1,6 45 3.7 1.8 46 3.6 1.7

825 44 3.7 1.8 44 3.4 1.7 45 3.8 1.8 46 3.6 1.8 47 3.8 1.9

850 44 3.5 1.7 44 3.2 1.6 46 3.7 1.8 46 3.4 1.7 47 3.6 1.7

875 44 3,5 1,7 44 3,3 1,6 46 3.8 1.9 46 3.5 1.7 47 3.7 1.8 48 3.8 1.9

900 44 3,3 1,6 45 3.7 1.8 46 3.6 1.8 47 3.8 1.8 47 3.5 1.7 48 3.6 1.8

925 44 3,7 1.8 44 3.2 1.5 46 3.7 1.8 46 3.4 1.7 47 3.6 1.8 48 3.7 1.8 48 3.4 1.7

950 44 3,5 1,7 45 3.6 1.8 46 3.5 1.7 47 3.7 1.8 47 3.4 1.7 48 3.5 1.7 49 3.8 1.9

975 44 3,3 1,6 46 3.6 1.8 47 3.8 1.9 47 3.5 1.7 48 3.7 1.8 48 3.4 1.6 49 3.6 1.8

1000 44 3.2 1.6 46 3.4 1.7 47 3.6 1.8 48 3.8 1.8 48 3.5 1.7 49 3.8 1.8 49 3.4 1.7

1050 46 3.6 1.8 47 3.5 1.7 48 3.7 1.8 48 3.4 1.7 49 3.7 1.8

1100 47 3.8 1.8 48 3.7 1.8 48 3.4 1.7 49 3.7 1.8

Conversion:1in wc=249Pa

Bold- indicates factory orifice size.

NOTE: Propane data is based on 1.53 specific gravity. For fuels with different specific gravity consult the National Fuel Gas Code ANSI

Z223.1-2006/N FPA 54-2006 or National Standard of Canada, Natural Gas and Propane Installation Code CSA B149.1-05.

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

In Canada, the input rating must be derated 5% (Natural Gas) and 10% (Propane Gas) for altitudes of 2,000 to 4,500 (609.6 to

1371.6m) above sea level. Use the 2001 to 3000 (609.9 to 914.4m) column in Table 7, Table 8, Table 9, and Table 10.

440 01 202401 Specificationsare subject to changewithout notice. 37

*9MPT &*9MPV PROPANE GAS MANIFOLD PRESSURE (in wc)

MEAN ELEVATIONABOVE SEA LEVEL ft(m)

HEATINGVALUE 0to 2000 2001to 3000* 3001to 3999 4001to 5000 5001to 6000 6001to 7000 7001to 8000

at ALTITUDE (0to609.6) (609.9to914.4)* (914.7to1219.2) (1219.5to 1524) (1524.3to 1828.8) (1829.1to2133.6) (2133.9to2438.4)

otu cu t "° .o ,1.o ,1.o ,1.o ,1.o ,1.o2500 10.0 4.9 10.0 4.9 9.0 4.4 10.0 4.9 9.4 4.6 8.5 4.2 10 4.9

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

Conversion:1inwc= 249Pa

NOTE: Propane data is based on 1.53 specific gravity. For fuels with different specific gravity consult the National Fuel Gas Code ANSI

Z223.1-2006/NFPA 54-2006 or National Standardof Canada, Natural Gas and Propane Installation CodeCSA B149.1-05.

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

In Canada, the input rating must be derated 5% (Natural Gas) and 10% (Propane Gas) for altitudes of 2,000 to 4,500 (609.6 to

1371.6m) above sea level. Use the 2001 to 3000 (609.9 to 914.4m) column in Table 7, Table 8, Table 9, and Table 10.

*9MVX PROPANE GAS MANIFOLD PRESSURE (in wc)20,000 BTU per burner

MEAN ELEVATION FEET ABOVE SEA LEVEL ft(m)

HEATINGVALUE 0to2000 2001to3000* 3001to3999 4001to5000 5001to6000 6001to7000 7001to8000

at ALTITUDE (0to609.6) (609.9to914.4)* (914.7to 1219.2) (1219.5to1524) (1524.3to1828.8) (1829.1to2133.6) (2133.9to2438.4)

tu cu t .,I.o .11.o .11.o., .o .,I.o .,I.o .,I.o

2500 10.0 4.9 8.9 4.4 8.4 4.1 10.0 4.9 10.0 4.9 10.0 4.9 10.0 4.9

Orifice Size #55 #55 #55 I)N #56 #56 #56

Conversion:1inwc=249Pa

NOTE: Propane data is based on 1.53 specific gravity. For fuels with different specific gravity consult the National Fuel Gas Code ANSI

Z223.1-2006/NFPA 54-2006 or National Standardof Canada, Natural Gas and Propane Installation CodeCSA B149.1-05.

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

In Canada, the input rating must be derated 5% (Natural Gas) and 10% (Propane Gas) for altitudes of 2,000 to 4,500 (609.6 to

1371.6m) above sea level. Use the 2001 to 3000 (609.9 to 914.4m) column in Table 7, Table 8, Table 9, and Table 10.

The burner orifice part nos. are as follows:

Orifice Part# Orifice Part#

41 1096942 42 1011351

43 1011377 44 1011352

45 1011353 46 1011744

47 1011378 48 1113201

49 1113202 54 1011376

55 1011354 56 1011355

ChangingOrificesfor HighAltitude

i_ii_ _i_i_ Changing Orifices

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

Measure from face of ori-

ELECTRICAL SHOCK, FIRE OR EXPLOSION

HAZARD

Failure to properly install orifices could result in

personal injury, death, and/or property damage.

Turn OFF electric power (at disconnect) and gas

supply (at manual valve in gas line) when installing

orifices. Installation of orifices requires a qualified

service technician.

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

1. Disconnect gas line from gas valve.

2. Remove manifold from furnace.

3. Remove the orifices from the manifold and replace them

with properly sized orifices.

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

Figure 39)

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

orifices.

Final Gas PipingCheck

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

disconnected from the gas supply piping system during any

pressure testing of that system at test pressures in excess

of 1/2" PSIG. Close the manual shut-offvalve before testing

at such pressures.

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

closing the equipment shut off valve during any pressure

testing of the gas supply system at test pressure equal to or

less than 1/2" PSI.

3. When installation is complete, test all pipe connections for

leaks with the gas pressure less than 1/2" PSIG to the gas

valve.

4. Apply a commercial soap solution to all joints to test for

leaks. Correct any leaks indicated by bubbles.

5. Correct even the smallest leak at once.

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

burner manifold along with the pilot tube connections to the

valve and pilot assembly while the furnace is operating.

38 Specificationsare subject to changewithout notice. 440 012024 01

FIRE OR EXPLOSION HAZARD

Failure to follow this warning could result in

personal injury, death and/or property damage.

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

commercially available soap solution made

specifically for the detection of leaks to check all

connections. A fire or explosion could result

causing property damage, personal injury and/or

loss of life.

7. Electrical Wiring

ELECTRICAL SHOCK HAZARD

Failure to turn off power could result in personal

injury or death.

Turn OFF electrical power at fuse box or service

panel before making any electrical connections

and ensure a proper ground connection is made

before connecting line voltage.

PowerSupply Wiring

The furnace MUST be electrically wired and grounded in

accordance with local codes, or inthe absence of local codes with

the latest edition of The National Electric Code, ANSI NFPA 70

and/or The Canadian Electric Code CSA C22.1.

Field wiring connections must be made inside the furnace

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

the wires exit the furnace casing.

NOTE: Furnace will not have normal operation is line polarity is

reversed. Check ALL field and control connections prior to

operation.

Copper conductors shall be used. Line voltage wires should

conform to temperature limitation of 35 ° C rise and be sized for the

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

amps for potential field-installed accessories such as electronic

air cleaners and humidifiers that would receive power from the

furnace control board. The furnace control board is rated for a

maximum of 1.0 amps combined for EAC and HUM. Consult NEC

or local codes for proper wire and circuit sizing.

JunctionBox (J-Box) Relocation

The J-Box is installed on left side of casing. An alternate J-Box

location on right side can be used.

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

screws from loose parts bag in blower compartment.

Remove two screws holding J-Box to casing.

Install large hole plug from loose furnace accessory bag into

the left J-Box location.

4. Clip wire tie holding J-Box wires.

5. Move J-Box to alternate location and attach using two self

tapping screws from bag.

6. Apply two hole plugs from bag at left J-Box location.

RISQUE D'INDENDIE OU D'EXPLOSION

Le non-respect des avertissements de securite

pourrait d'entrainer des blessures graves, la mort

ou des dommages materiels.

Ne jamais utiliser une flamme nue por verifier la

presence des fuites de gaz. Pour la verification de

tous les joints, utiliser plut6t une solution

savonneuse commerciale fabriquee

specifiquement pur la detection des fuites de gaz.

Un incendie ou une explosion peut entrainer des

dommages materiels, des blessures ou la mort.

Thermostat

Heating

The two-stage furnace control board will operate with either a

single stage or a two-stage heating thermostat and will provide

two-stage heating operation.

For single-stage thermostat installations, the R and W wires from

the thermostat connect to the R and Wl connections on the

furnace control board. (See Figure 40 and wiring diagram)

Note: The TT (Thermostat Type) SW1 DIP switch #3 should be in

the OFF position for the furnace to operate properly with a

single-stage thermostat. Failure to change DIP switch with

single-stage thermostat will result in Low Heat operation ONLY.

During operation, the furnace will operate on Low Heat for up to12

minutes. If the heat request exists for more than 12 minutes, the

furnace will automatically shift to the High Heat mode for the

remaining duration of the heating cycle.

For two-stage thermostat installations, the R, Wl and W2 wires

from the thermostat connect to the R, Wl and W2 connections on

the furnace control board. Set TT SWl DIP switch #3 to ON

position. During operation, the furnace will shift from Low Heat to

High Heat as requested by the thermostat. (See Figure 40 and

wiring diagram)

Heat anticipator setting will need to be measured if 24VAC

humidifier is installed. Measure current in series from R to Wl at

the thermostat. Be sure 24VAC humidifier is operating during this

check. Allow furnace to operate for 2 minutes before recording the

AC amperage reading. Set anticipator on thermostat to recorded

value.

Thermostat location has an important effect on the operation of the

furnace. Follow instructions included with thermostat for correct

mounting and wiring.

Low voltage connections to furnace must be made on terminal

board to furnace control board. (See Figure 41)

Cooling

*9MPT

If cooling is used, the Y and G from the thermostat must be

connected to the control board Y/Y2 and G to energize cooling

blower speed.

NOTE: MPT models are not two-stage cooling compatible.

*9MPV,*9MVX

If single-speed cooling is used, the Y and G from the thermostat

must be connected to the control board Y/Y2 and G to energize

cooling blower speed.

440 01 202401 Specifications are subject to changewithout notice. 39

If two-stage cooling is used, the Y1, Y2, G of the thermostat must

be connected to Y1 of tap select interface board for low cooling,

Y/Y2 of the furnace control board for high cooling and G of the

furnace control board for continuous fan speed.

OptionalEquipment

All wiring from furnace to optional equipment MUST conform to

local codes or, in the absence of local codes with the latest edition

of The National Electric Code, ANSI NFPA 70 and/or The

Canadian Electric Code CSA C22.1. Install wiring in accordance

with manufacturer's instructions. The wiring MUST have a

minimum temperature rating of 105 ° C.

Humidifier/ElectronicAir Cleaner

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

connection.

HUMIDIFIER - The HUM (24V) terminal is energized when the

low pressure switch closes on a call for heat. The HUM (115V)

is energized when the inducer is energized.

ELECTRONIC AIR CLEANER - EAC terminal is energized

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

when blower operates in the hard-wired continuous fan mode.

REDUCED FURNACELIFEHAZARD

Failure to follow caution may result in reduced furnace

life.

Do NOT exceed 115V/1.O amp. maximum current

load for both the EAC terminal and the HUM

terminal combined.

Furnace Control Board

The furnace control board has a fixed blower ON delay of 30

seconds for High Heat calls and 45 seconds for Low Heat calls. The

blower OFF timing is factory preset at 140 seconds. If desired, the

fan OFF delay can be reset to obtain the longest delay times while

still maintaining comfort levels. See "Furnace Wiring Diagram".

Dehumidification- VariableSpeedONLY(*gMPV,*gMVX)

The furnace control board has a dehumidification feature which

reduces cooling airflow by 20% when the DEHUM terminal (1/4"

male quick connect) is energized by 24VAC and there is a cooling

call. DEHUM may be operated by athermostat dehumidify (24VAC

for dehumidify) command or a dehumidistat (switch closes on call

for dehumidification) with one terminal connected to (Y1 for

two-stage cooling or Y/Y2 for single-speed cooling applications)

and the other terminal connected to DEHUM.

Electrical Connections

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

115V. 60 Hz,

==0o,Bn ot,on

G_ound

LowVottage (_

TerminalBoard

I[ -

I @

ingleStage

Thermostat

LowVoltage (_

TerminaIBoard

I......

F.... _Z)

oStage

ermosta_

\"-\-. ii

_ 25-24-78a

NOTE:l15VAC/60Hz/single--phase

Operatingvoltagerange:127VACmax,104VACmin.

* Permissible limits of voltage at which unit will operate satisfactorily

FurnaceControl Fuse

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

on furnace control board. (See Figure 41) Any electrical shorts of

24V wiring during installation, service, or maintenance may cause

fuse to blow. If fuse replacement is required, use only a fuse of

identical size (5 amp.)

Tap SelectInterfaceBoard (*9MPV,*9MVX)

The Tap Select Interface Board is used with the Variable Speed

motor. There are DIP switches (SW2) for continuous blower adjust,

heating blower adjust, cooling blower adjust and cooling on/off

delay profiles. There is a jumper (,.11)for slight blower adjustment,

increase (+)/no change (NOM)/decrease (-). There is a jumper

(J2) for airflow selection of Heat Pump EFFICIENCY or

COMFORT. (EFFICIENCY provides no airflow reduction in airflow

whether O is energized or not. COMFORT provides a 10%

reduction in airflow when O is not energized with a cooling call).

The O terminal is available for use for Heat Pump applications, if

desired.

The Y1 terminal (if a two-stage Air Conditioner or two-stage Heat

Pump is used) will provide low cooling blower speed when

energized. (Only Y/Y2 on the furnace control board is used if a

single-stage Air Conditioner or Heat Pump is installed)

40 Specificationsare subject to changewithout notice. 440 012024 01

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Se e "Winng _ _"_'_ I

• ' _ ._. r_%J_

Diagram" ............._ _? _

for switch settings i__!_

HUM (_-_'__

FUSE// "-_

DEHUM

25-24-74

Control Connections

_DiagnosticLight

\_ .<

8. Ductwork and Filter

115

VAC

HUM

EAC

CARBON MONOXIDE POISONING HAZARD

Failure to properly seal duct could result in

personal injury or death.

Do NOT draw return air from inside a closet or

utility room. Return air duct MUST be sealed to

furnace casing.

Installation

NOTE: Design and installthe air distribution system to comply with

Air Conditioning Contractors of America manuals and/or NFPA

pamphlets 90A and 90B or other approved methods that conform

to local codes and good trade practices.

1. When furnace supply ducts carry air outside furnace area,

seal return air duct to furnace casing and terminate duct

outside furnace space.

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

side of furnace.

3. For furnaces installed without a cooling coil, it is

recommended that the outlet duct be provided with a

removable access panel. This panel should be accessible

when the furnace is installed so the exterior of the heat

exchanger can be viewed for inspections. The access panel

MUST be sealed to prevent leaks.

4. If separate evaporator and blower units are used, install

good sealing dampers for air flow control. Chilled air going

through the furnace could cause condensation and shorten

the furnace life.

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

manual. Manually operated dampers MUST be equipped with a

means to prevent furnace or air conditioning operation unless

damper is in the full heat or cool position.

CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in

personal injury or death.

Cool air passing over heat exchanger can cause

condensate to form resulting in heat exchanger

failure.

Connections

NOTE: Return air can enter through either side, both sides, the

bottom or a side and the bottom. Return air can not enter through

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

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

with returns to minimize noise transmission through the return

grille. Any blower moving a high volume of air will produce audible

noise which could be objectionable to when the unit is located very

close to living areas. It is advisable to route the return air ducts

under the floor or through the attic.

1. For side connections using a 16" x 25" (406.4 x 635mm)

filter, cut out the embossed area shown in Figure 42. This

will provide a 141/2,' x 221/2,' (368.3 x 571.5mm)

approximate opening.

Side Return Air Cutout

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A=141/2"(368.3mm)HeightofCutoutfor16"x25"(406.4x635mm)Filter

B=221/2''(571,5ram)WidthofCutoutfor16"x25"(406,4x635mm)Filter

Embossed Area _//_B.-/_

on Side of Furnace lJ __"

_._//_// Furnace

_Bottom

440 01 202401 Specificationsare subject to changewithout notice• 41

NOTE: Furnaces with 5 TONS cooling rating may require

two(2) side returns or one side return with bottom return.

2. Bottom returns can be made by removing the knockout

panel in the furnace base. Do NOT remove knock-out

except for a bottom return.

3. Installation of locking-type dampers are recommended in alt

branches, or in individual ducts to balance system's airflow.

4. Non-combustible, flexible duct connectors are

recommended for return and supply connections to

furnace.

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

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

noise.

NOTE: To further reduce noise, install acoustical air turning vanes

and/or line the inside of duct with acoustical material.

Sizing

Existing or new ductwork MUST be sized to handle the correct

amount of airflow for either heating only or heating and air

conditioning.

Insulation

1. Insulate ductwork installed in attics or other areas exposed

to outside temperatures with a minimum of 2" (50.8mm)

insulation and vapor barrier.

2. Insulate ductwork in indoor unconditioned areas with a

minimum of 1" (25.4mm) insulation with indoor type vapor

barrier.

Filters

A filter must be used:

Filters are supplied with these furnaces, and additional filters may

be purchased from your distributor.

Use either filter type:

• Washable, high velocity filters are based on a maximum

air flow rating of 600 FPM.

• Disposable, low velocity filters are based on a maximum

air flow of 300 FPM when used with filter grille.

• See Technical Manual, Circulation Air Blower Data for

additional data.

NOTE: Disposable, low velocity filters may be replaced with

washable, high velocity filter providing they meet the minimum size

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

same type and size.

__i Side Mounted Filter Rack

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i i

25-20-90

Filter Installationusing Filter Rack

When installing or removing a bottom mounted filter, slide the two

side filter clips to the back of the furnace BEFORE installing or

removing. This will allow the filter to clear the front raised edge of

the furnace. Insert filter into side clips first and push filter back until

it is fully engaged into back clip. When filter is in place, slide clips

back into place midway on filter as shown in Figure 44 or

Figure 45,

Center Clip

side-to-side

Bottom Mounted Filter Rack

9" (152.4m _ 25-24-18-1

Slide filter clips towards back before removin_l

Filter Clip Construction

1/2 F\\\ \-\\_. 3" 6.2/

"\ \.\ _ 1]/4 '' (31.8)

26 Ga. Galvanized Steel \-\ >-

FAST part number 1008482 _\4/ 11/16"(27)

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

which require larger filter media and have limited clearances on

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

available from your distributor.

NOTE: If filters are only suitable for heating application,

advise homeowner that filter size may need to be increased if

air conditioning is added,

Standoff Filter Rack

Using

Optional

Standoff Filter

Rack

25-21-45a

42 Specificationsare subject to changewithout notice. 440 012024 01

AdditionOf Air Conditioning

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

be installed parallel with or on the discharge side ofthe unit to avoid

condensation on the heat exchanger. All furnaces are designed

with a break-away duct flange on the supply air side ofthe furnace.

This allows for installation in the horizontal right or downflow

applications. The coil installation instructions must be consulted

for proper coil location and installation procedures. With a parallel

flow arrangement, dampers must be installed to prevent chilled air

from entering the furnace. If manually operated dampers are used,

they must be equipped with a means to prevent operation of either

unit unless the damper is in full heat or full cool position.

A 3" clearance is required on the right side of the furnace in order to

run the condensate drain line. Copper or plastic tubing may be

used for the condensate drain line.

DownflowFurnaceInstallation

Non-Combustible FloorInstallation

Fabricate a plenum to the dimensions given in Figure 4, for the

furnace outlet. Plenum should be flanged, approximately 3/4"

(19.1 mm)for support.

Note: The three(3) screws in the top panel ofthe furnace next to the

duct flange MUST be removed to provide serviceability of the

primary heat exchangers in the downflow installation

1. Position plenum through the floor and set the furnace over

the opening in the floor. If necessary, grout around the base

to seal air leaks between the base and the floor.

CombustibleFloor Installation

FIRE HAZARD

Subbase for CombustibleFloor

NOTE: The three(3) screws in the top panel of the furnace next to

the duct flange MUST be removed to provide serviceability of the

primary heat exchangers in the downfiow installation

Note: When using the subbase for combustible floors, the

discharge air duct flanges on the furnace MUST be broken down to

provide proper fit up to the subbase. Use duct pliers to bend the

duct flanges flat onto the furnace casing. DO NOT bend the duct

flanges inward (toward the heat exchangers) as air flow

restrictions may occur.

The Subbase for Combustible Floors MUST be used when a

downflow furnace is set on a combustible floor, even when the

furnace is installed on a coil box.

1. Cut the opening in the floor according to Table 11. The hole

in the floor must be cut to the dimensions listed in Table 11

since the base is equipped with locating tabs that center the

base over the opening.

The opening in the base is 11/4 '' (31.8mm) shorter and 11/8,'

(28.6mm) narrower than the recommended size of the opening in

the floor. This is done to maintain clearance between the floor and

the plenum.

2. Fabricate the plenum to the dimensions given in Table 11.

Note that the dimensions given are outside dimensions.

3. Set the base over the opening in the floor, centering it over

the opening. Fasten the base to the floor with screws or

nails. See Figure 47, Figure 48 and Figure 49.

4. Drop the plenum through the opening in the base. The

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

Failure to install unit on noncombustible subbase

could result in personal injury, death, and/or

property damage.

Place furnace on noncombustible subbase on

downflow applications, unless installing on

non-combustible flooring.

illiiii!!! ii!i

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Sub-base for

Combustible Floors

Part Number

FurnaceOnly

NAHH001SB

NAHH002SB

NAHH003SB

NAHHOIOSB

Subbasefor CoilBox

NAHHOO4SB

NAHH005SB

NAHH006SB

Subbases for Combustible Floors Dimensions -in(mm)

Sub-base for Combustible

Floor Dimensions Opening In Floor

J* K** L M N

Opening In Typical Plenum

Base For Plenum Dimensions

P R S T

1511/16 283/4 149/16 16(406,4) 161/4 145/8 15 (381) 131/2 15 (381) 131/2

(398,5) (730,3) (369,9) (412,8) (371,5) (342,9) (342,9)

195/16 283/4 183/16 16(406,4) 161/4 181/4 15 (381) 171/8 15 (381) 171/8

(490,5) (730,3) (462) (412,8) (463,6) (435,6) (435,6)

2215/16 283/4 2113/16 161/4 217/8 15 (381) 193/4 15 (381) 193/4

(582,6) (730,3) (554) 16(406,4) (412,8) (555,6) (501,7) (501,7)

2411/16 283/4 239/16 16(406,4) 161/4 235/8 15 (381) 221/2 15 (381) 221/2

(627,1) (730,3) (598,5) (412,8) (600,1) (571,5) (571,5)

153/4 209/16 149/16 161/16 161/4 145/8 15 (381) 131/2 15 (381) 131/2

(25,4) (522,3) (369,9) (408) (412,8) (371,5) (342,9) (342,9)

193/8 209/16 183/16 161/16 161/4 181/4 171/8 171/8

(181,1) (522,3) (462) (408) (412,8) (463,6) 15 (381) (435,6) 15 (381) (435,6)

209/16 2113/16 161/16 161/4 217/8 15 (381) 193/4 15 (381) 193/4

23 (284,2) (522,3) (554) (408) (412,8) (555,6) (501,7) (501,7)

243/4 209/16 239/16 161/16 161/4 235/8 15 (381) 221/2 15 (381) 221/2

NAHH009SB (628,7) (522,3) (598,5) (408) (412,8) (600,1) (571,5) (571,5)

Outside Dimension

** Base Spacer Side To Side

Converstion: 1 in = 25,4 mm

440 01 2024 01 specificationsaresubjecttochangewithoutnotice. 43

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Exploded View of Sub-Base for

Furnace ONLY

..,_r\

T _._]_S

_-_Plenum _

A = 4 1/4" (108mm) Minimum

clearance from back of hole

to wall or other obstruction,

Iv[-

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

aligns between the locating tabs.

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Exploded View of Base for

Downflow Cased Coil

_.'<\ Holeln Floor_

21/2" (63.5mm)

11/2"(38.1mm)

Setting the Subbase

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Furnace\iF-_\_ "_-_

nstaatonof /" _:_ i

Combustible • ::

Floor Base iI

"_! :i \-_W_ Wood Floor

! "_-.L \t

...... Plenum

25-20-46a

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:; ii__!i:i Condensate Line Raised by Base

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

25-20-52

This subbase for combustible floors has been designed so that the

height of the subbase raises the downflow coil off the floor to allow

easy installation of the condensate drain. See Figure 50.

9. Checks and Adjustments

NOTE: Verify the input rate of the furnace.

FIRE OR EXPLOSION HAZARD

Failure to turn OFF gas at shut off before

connecting manometer could result in personal

injury, death, and/or property damage.

Turn OFF gas at shut off before connecting

manometer.

Startup

NOTE: Referto the start-up proceduresinthe "User's Information

Manual" orto the "Operating InstructionsLabel" onthe furnace.

FIRE OR EXPLOSION HAZARD

Failure to correct hazard could result in personal

injury, death, and/or property damage.

If any sparks, odors or unusual noises occur,

immediately shut OFF power to furnace. Check for

wiring errors or obstruction to blower.

Gas Supply Pressure

Gas supply pressure should be within minimum and maximum

values listed on rating plate. Pressures are usually set by gas

suppliers.

44 Specifications are subject to changewithout notice. 440 012024 01

ManifoldGas PressureAdjustments

(High and Low Heat)

NOTE: Make adjustment to manifold pressure with burners

operating.

FIRE OR EXPLOSION HAZARD

Failure to turn OFF gas at shut off before

connecting manometer could result in personal

injury, death, and/or property damage.

Turn OFF gas at shut off before connecting

manometer.

1. With gas OFF, connect manometer to manifold pressure tap

on the outlet of gas control valve. See Figure 51. Use a

manometer with a 0 to 12 inches of water column range.

2. Turn gas ON. Operate the furnace on High Heat by using a

jumper wire on the Rto Wl & W2 thermostat connections on

the furnace control board.

3. Remove manifold pressure adjustment screw cover on

furnace gas control valve. Turn adjusting screw

counterclockwise to decrease the manifold pressure and

clockwise to increase pressure. See Figure 51.

NOTE: Adjustment screw cover MUST be replaced on gas control

valve before reading manifold pressure and operating furnace.

iiii

:!i__ii!i !i!:i Typical Gas Control Valve Honeywell

Regulator

OUTLET

Tap - 1/8 Pressure

25-24-98a Tap- 1/8

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

Table 9 or Table 10.

5. Operate the furnace on Low Heat by using a jumper wire on

the R to Wl thermostat connections on the furnace control

board.

Note: The SWl DIP switch #3 should be in the ON position

to set the Low Heat manifold pressure. (See wiring

diagram.)

6. Repeat steps 3 and 4 for Low Heat operation.

7. When the manifold pressures are properly set, replace the

adjustment screw covers on the gas control valve.

8. Remove the jumper wires from the thermostat connections

on the furnace control board. Remove manometer

connection from manifold pressure tap, and replace plug in

gas valve.

9. Return SWl DIP switch #3 to previous setting.

10. Check for leaks at plug.

NaturalGas InputRatingCheck

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

Rating is based on a natural gas BTU content of 1,000 BTU's per

cubic foot. Check with gas supplier for actual BTU content.

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

Use jumper wire on R to Wl and W2 for High Heat.

2. Time how many seconds ittakes the smallest dial on the gas

meter to make one complete revolution. Refer to Example.

3. Repeat steps 1 and 2 with jumper wire on R to Wl for Low

Heat.

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

(seconds) by two.

NOTE:SWl DIP switch #3 must be in ON position. (See

Furnace Wiring Diagram). Return SWl DIP switch #3 to

previous setting after check.

Example (BTUH)

Natural Gas No. of Time Per BTU Per

BTU Content Seconds Cubic Foot in

per cu, foot Per Hour Seconds Hour

1,000 3,600 48 75,000

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

To Determine the appliance 3

kW input rate from a .05m test dial that

has been clocked at 80 seconds for one complete revolution.

Example (kW)

Number of

seconds per seconds per Size of test dial kW m3/h

hour complete (.05m 3)

rotation

3,600 80 .05 2.25

3,600 + 80 x ,05 = 7,2 m3/h

2,25m3/h x 10,35 kWh/m 3= 23,28 kW

23.28 x 3.412 = 79,431 BTU

4. Remove jumper wire from R to Wl and W2.

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

Main BurnerFlameCheck

Allow the furnace to run approximately 10 minutes then inspect the

main burner and pilot flames. See Figure 52.

Check for the following (Figure 52):

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

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

tips.

• Flames extending directly from burner into heat

exchanger.

• Flames do NOT touch sides of heat exchanger.

If any problems with main burner flames are noted, it may be

necessary to adjust gas pressures, or check for drafts.

Main Burner

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NOTE: For Ignitor location see Figure 53.

10-10-78

440 01 202401 Specificationsare subject to changewithout notice. 45

Ignitor Location in(mm)

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21/16(52.4)

5/, 6(8_ _ ............ -; .

:ii il l/

NOTE:

Flame sensor has a different orientation in all 040 & 050 model&

TemperatureRiseCheck

The blower speed MUST be set to give the correct air temperature

rise through the furnace as marked on the rating plate for both High

Heat and Low Heat operation. Temperature rise is the difference

between supply and return air temperatures.

To check temperature rise,use the following procedure:

1. Place thermometers in supply and return air registers as

close to furnace as possible, avoiding direct radiant heat

from heat exchangers.

2. Operate furnace on High Heat for 10 minutes with all the

registers and duct dampers open by using a jumper wire on

R to Wl and W2 thermostat connections on the furnace

control board.

Note: The SWl DIP switch #3 should be in the on position.

(See furnace wiring diagram)

3. Take readings and compare with range specified on rating

plate.

4. Ifthe temperature rise is not in the correct range, the blower

speed must be changed. A higher blower speed will lower

the temperature rise. A lower blower speed will increase the

temperature rise.

5. Repeat steps 2 thru 4 with the furnace operating on Low

Heat for 10 minutes by using a jumper wire on the R to Wl

thermostat connections on the furnace control board.

6. Remove the jumper wire after the adjustments are

complete. Return SWl DIP switch #3 to previous setting.

BlowerAdjustments(*9MPT)

Changing Blower Speed

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in

personal injury or death.

Turn OFF power to furnace before changing

speed taps.

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

for this product are based on a nominal 400 CFM (189 L/s) per ton

cooling and the basic mid range on the temperature rise for

heating.

Since the manufacturer cannot establish the static pressure

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

installer dealer/contractor to select the proper speed taps for

the application when the unit is installed,

REDUCED FURNACELIFEHAZARD

Failure to properly set the air temperature rise may

result in reduced furnace life,

Use ON LY the blower motor speed taps insert indicated

in the Circulation Air Blower Data for setting air

temperature rise.

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

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

and cooling speed taps located on the furnace control board

as well as location of unused blower motor speed leads.

Use the chart (Table 12) to determine the blower motor

speed settings.

!!i!!i !ili

Wire Color

Black

Orange*

Blue

Red

Blower Speed Chart

Motor Speed

High

Med-High

Medium

Low

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

Change the heat or cool blower motor speed by removing the

motor lead from the "HI HEAT or LO HEAT" or "COOL"

terminal and replace it with the desired motor speed lead from

the "MI" or "M2" location. Connect the wire previously

removed from the "HI HEAT or LO HEAT" or "COOL" terminal

to the vacated "MI" or "M2" terminal.

If the same speed must be used for both heating and cooling,

remove the undesired motor speed lead from the "HI HEAT or

LO HEAT" or "Cool" terminal and connect that lead to the

open terminal at "MI" or "M2" location or tape off. Attach a

jumper between the "HI HEAT or LO HEAT" and "coor'

terminals and the remaining motor speed lead.

Note: When using the same speed on motors with (4) speed

leads, it will be necessary to tape off the terminal of the motor

speed lead removed from the "HI HEAT or LO HEAT" or

"coor' terminal with electrical tape since an open terminal will

not be available at the "M1" or "M2" location.

Continuous-Fan using"G"

Energizing the "G" terminal on the furnace control board provides

continuous fan operation. This is done by connecting the G

terminal of the thermostat to the Gterminal on the furnace control

board. When the FAN switch is turned from auto to ON the fan will

operate continuously at "LO HEAT" speed. EAC wilt be energized

in this mode.

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

warm up then restart at heating speed.

Hard-Wired Continuous Fan

A terminal is provided on the furnace control board located in the

circulating air blower compartment for operation of the continuous

fan option. This connection is intended for the low speed motor tap,

and has a lower contact rating (8amps) than the heat and cool taps.

When the low speed blower lead is connected to this terminal, it will

provide low speed blower operation whenever the other three

speeds ("HI HEAT or LO HEAT" or COOL) are not energized.

46 Specificationsare subject to changewithout notice. 440 012024 01

Thoroughly check the system after modification to ensure the

proper operation of the circulating air blower in all modes of

operation.

Separate Speed Selections for Low Heat,High Heat,

Cool, and Continuous-Fan

Connect low speed lead from circulating air motor to the "CONT"

terminal at the furnace control board. The appropriate motor leads

should already be connected to the "HI HEAT and LO HEAT" and

"COOL" terminals.

Heating and Continuous-Fan Speedthe Same

If it is necessary to operate the Low Heat speed and

continuous-fan speed using the same blower speed, connect a

jumper between the "LO HEAT" and "CONT FAN" terminals on

the furnace control board.

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

HEAT" and "CONT FAN" terminals.

Blower Adjustments (*9MPV, *9MVX)

ChangingBlowerSpeed

ELECTRICAL SHOCK HAZARD

Failure to disconnect power could result in

personal injury or death.

Turn OFF power to furnace before changing blower

speed.

NOTE: The blower speeds that the manufacturer sets from the

factory for this product are based on a nominal 400 CFM (189 L/s)

per ton cooling and the mid range on the temperature rise for

heating.

Since the manufacturer cannot predict the static pressure

that will be applied to the furnace, it is the responsibility of the

installing dealer/contractor to select the proper speeds for

the application when the furnace is installed.

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

1. The 115 VAC power supply to the furnace must be turned

OFF before making adjustments to the motor.

NOTE: Allow at least 1 minute before restoring power to the

furnace after making Blower Control changes.

The heating, cooling and continuous blower speeds can be

adjusted by changing the SW2 DIP switch settings that are

located on the Tap Select Interface Board (see Figure 54).

* Switches #1 and #2 adjust the continuous blower speeds.

Switches #3 and #4 adjust the heating speed.

Switches #5 and #6 adjust the cooling speed.

Switches #7 and #8 adjust the cooling speed on/off delay

profiles. See the "Technical Support Manual" for the switch

settings for the desired airflow rates for the installation.

The jumper J1 is used to slightly increase (+) or decrease

(-) or not change (NOM) the blower speed selected from

SW2. J1 effects BOTH cooling and heating airflow.

* Continuous blower selection DIP 10 and 11 will cause the

blower to run in high cooling speed for all low cooling (Y1)

calls. Continuous blower DIP settings of 00 and 01 will allow

low cooling (Y1) calls to operate normally.

Continuous-Fan using"G"

Energizing the "G" terminal on the furnace control board provides

continuous fan operation. This is done by connecting the G

terminal of the thermostat to the G terminal on the furnace control

board. When the FAN switch is turned from auto to ON the fan will

operate continuously at airflow selected by DIP SW2 switch #1 and

DIP SW2 switch #2. EAC will be energized in this mode.

NOTE: In heating, the fan will not turn off during furnace ignition

and warm up.

Hard Wired Continuous Fan Operation

Not available for variable speed models.

Variable Speed (*9MPV, *9MVX) Tap Select Interface Board (TSIB)

HK42PG003

( O O O

_SDI]iEtSD8_

+NOM -

BLOWER ADJUST

ON ---- 1

OFF -- 0

440 01 202401 Specificationsare subject to changewithout notice. 47

10. Furnace Maintenance

FIRE, EXPLOSION, OR CARBON MONOXIDE

HAZARDS

Failure to have the furnace inspected and

maintained could result in personal injury, death,

and/or property damage,

It is recommended that the furnace be inspected

and serviced on an annual basis (before the heating

season) by a qualified service technician.

See "User's Information Manual".

ELECTRICAL SHOCK, FIRE OR EXPLOSION

HAZARD

Failure to follow this warning could result in

personal injury, death, and/or property damage.

• Before servicing, disconnect all electrical

power to furnace.

•When servicing controls, label all wires prior to

disconnecting. Reconnect wires correctly.

•Verify proper operation after servicing.

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

48 Specifications are subject to changewithout notice. 440 012024 01

11. Sequence of Operation & Diagnostics (*9MPT)

The following is the normal operating sequence at factory default settings (SWl OFF/ON/OFF)

Cooling(Y) Request:

24VAC signals applied to Y/Y2 & G terminals of FCB (furnace control board).

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

Y/Y2 & G signals removed from FOB

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

NOTE: DEHUM not available on the *9MPT models.

ContinuousCirculatingFan(G) Request:

24VAC signal applied to G terminal of FCB.

• Low-Heat motor speed is energized without delay.

G signal removed from FOB.

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

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

unless a blower motor lead is connected to the CONT FAN terminal on the FOB, in which case see NOTE 2)

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

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

loss of the Heating or Cooling request.

ContinuousCirculatingFanHard-Wired (Cont)Request:

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

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

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

speed tap.

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

Heating(Wl) Request(singlestagethermostatoperation,SW1 DIP switch#3 mustbe in OFF

position) (see furnace wiring diagram):

24VAC signal applied to W1 terminal of FCB.

• Inducer motor turns on at high speed.

• Following a 15 second prepurge delay after the low pressure switch closes, the ignitor begins a 17 second warm up.

• The gas valve is energized, the main burners light at Low Heat rate and flame is sensed.

• The ignitor is de-energized, and the inducer drops to low speed after the main burners ignite.

• The FOB will delay Low Heat blower operation for the 45-second Low Heat Fan On Delay time, timed from

the opening of the gas valve.

• If the Wl request is still present after 12 minutes, timed from the opening of the gas valve, the inducer switches to high speed,

closing the high pressure switch, then the High Heat solenoid energizes, and the fan switches to High Heat speed.

W1 signal removed from FOB.

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

• The inducer runs at its present speed for a 15 second postpurge period.

• The fan runs at its present speed.

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

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

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

Heating Request(Wl l W2) (two-stage thermostatoperation,SW1 DIP switch#3 mustbe in ON

position)(see furnacewiringdiagram):

24VAC signal applied to Wl terminal of FCB.

• Same response as single stage thermostat operation (fan uses Low Stage Heat On Delay) described above except the control

will not go to High Heat rate, and High Heat Fan speed unless a W2 signal is applied.

24VAC signal applied to Wl and W2 terminals of FOB.

• Same light-off routine as described for the signal stage thermostat operation except main burners light at High Heat rate, the

inducer remains on high speed after ignition, and the FOB wilt delay blower operation at the High Heat Fan speed for 30 second

On Delay time.

NOTE 5) The FOB responds without delay to the presence or loss of W2 (with W1 constant). W1 & W2 result in high inducer, High Heat

rate, and High Heat Fan speed. Wl only results in low inducer, Low Heat rate, and Low Heat Fan speed.

440 01 202401 Specificationsare subject to changewithout notice. 49

Heating Request with Gas Shut Off:

24 VAC signal applied to Wl terminal of FCB.

The FOB will attempt 4 cycles for ignition then go to soft lockout for 3 hours, and then try for ignition again as long as the heat call

remains. Power reset will clear lockout.

• Inducer motor turns on at high speed.

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

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

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

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

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

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

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

• The ignitor glows red hot for 22 seconds then turns off. The FOB proceeds to soft lockout. Stops flashing

error code 6, and begins flashing error code 6 + 1.

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

FurnaceControlBoard DiagnosticCodes (See Figure55):

OFF =

Heartbeat =

ON SOLID =

1 Flash =

2 Flashes =

3 Flashes =

4 Flashes =

5 Flashes =

6 Flashes =

6 + 1 Flashes =

7 Flashes =

8 Flashes =

9 Flashes =

10 Flashes =

24VAC or 115VAC is off, fuse is open

Normal operation or no previous Diagnostic Code

Soft Lockout - Furnace Control Error (1 hr delay)

If code repeats immediately following power reset then replace control

Not used

Pressure switch(es) closed when should be open

Low pressure switch open when should be closed

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

Flame sensed out of sequence

Failure to ignite or flame sense lost while running

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

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

(roll-out switch requires manual reset)

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

High pressure switch open when should be closed

Line voltage polarity or improper transformer phasing on twinned applications

NOTE: The 6 + 1 designation indicates a combination of flash

codes.

*If status code recall is needed, briefly (2-3 seconds) remove then

reconnect one limit switch wire (main or roltout) to display last

stored status code. Do not remove power or blower door before

initiating status code recall or code will be lost. Code is

automatically cleared after 72 hours or upon power reset.

* Proper flame sense microamps: 0.7 microamps D.C. minimum,

2.0 - 4.0 microamps nominal

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

....... _:_ _"_.

See "Wiring _ _!!

Din-ram" .._ _ .... r_4;_

for switch settings _ _ fX, _

FUSE / // _\_

DEHUM

25-24-74

_Diagnostic Light

Control Board

-\.j

EAC

HUMIDIFIER - The 24VAC HUM is energized when the low pressure switch closes on a call for heat. The 115V HUM (called HUM on

Control) is energized when the inducer is energized.

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

hard-wired continuous fan mode.

50 Specificationsare eubject to changewithout notice. 440 012024 01

12. Wiring Diagram *9MPT (Two-Stage Heating with PSC Motor)

cooloNDELAY:5SEOIr ' -X

I COOLOFFDELAY: 90 SECI FURNACE CONTROLsw1=I,SWIsw1=2HEATOFF DELAY / THERMOSTATsw1=3 TYPE o

I HEAT ON DELAY 30 SEC. I u_ ',n _ co co _ _ _ _ '°

LOW STAGE I o o o o

HEAT ON DELAY 45 SEC' I Z 8 Z 0 _ Z8 Zo Z 8 _ z 8 _ '_1

I EAC + HUM 1.0A MAX HEATOFF-DELAY HEATOFF-DELAY HEATOFF-DELAY HEATOFF-DELAY / HEATOFFDELAY HEATOFF@ELAY

COMB NED THERMOSTATTYPE THERMOSTATTYPE THERMOSTATTYPE THERMOSTATTYPE |THERMOSTATTYPE_ERMOSTATTYPE _ I

o r z

_-'% NOTE_2 Oi

,,___ - p#...f_-

_--" L__CJ

CAPACITOR

CAPACHOR

z>_

_>_z _q

_O<_<_

_©©O_>

88 :zz+

_m_©

<<_

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>>_b<_

oo_§_:s

"1t

, | o

440 01 202401 Specificationsare subject to changewithout notice. 51

13. Sequence of Operation & Diagnostics (*9MPV, *9MV)0

The following is the normal operating sequence at factory default settings (SWl OFF/ON/OFF, SW2 all OFF)

NOTE: SWl DIP switches (G, Y/Y2, Wl, W2 thermostat terminals) and DEHUM (1/4" mate quick connect terminal) are located on the

FCB.

SW2 DIP switches and Y1 and O thermostat terminals are located on the TSIB.

Low Cooling(Y1) Request:

24VAC signals applied to Y1 & G terminals of TSIB (Tap Select Interface Board) and FCB (Furnace Control Board), respectively.

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

Y1 & G signals removed from TSIB and FCB

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

Cooling (Y1) and dehumidification (DEHUM) requests:

• 24 VAC signals applied to Y1, DEHUM & G terminals of TSIB and FCB.

• Same operation as the cooling (Y1) request, except the cooling airflow is reduced 20% to compensate for high

humidity conditions during cooling operation. The low cooling airflow returns to the normal setting after the DEHUM signal is

removed.

High Cooling(Y1 l Y/Y2) or (Y/Y2) Request:

24VAC signals applied to Y1 & Y/Y2 & G or Y/Y2 & G terminals of FCB (Furnace Control Board).

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

Y1 & Y/Y2 & G or Y/Y2 & G signals removed from TSIB and FCB

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

High Cooling (Y1 & Y/Y2 or Y/Y2) and dehumidification (DEHUM) requests:

• 24 VAC signals applied to Y1 & Y/Y2 or Y/Y2, DEHUM, & G terminals of TSIB and FCB.

• Same operation as the high cooling (Y1 & Y/Y2 or Y/Y2) request, except the cooling airflow is reduced 20% to compensate for high

humidity conditions during cooling operation. The high cooling airflow returns to the normal setting after the DEHUM signal is

removed.

Low or high cooling and O terminal (Heat Pump mode):

• If the J2 jumper is in the AC/HP EFFICIENCY position, there will be no change in blower airflow regardless of the O terminal being

energized or de-energized.

• If the J2 jumper is in the HP COMFORT position, then there wilt be a 10% reduction in airflow when the O terminal is de-energized

(HP heating) and no airflow reduction when O is energized (HP cooling).

NOTE 1) The motor has been set up to recognize the O terminal as energized during cooling calls (reversing valve energized for cooling).

ContinuousCirculatingFan(G) Request:

24VAC signal applied to G terminal of FCB.

• Continuous fan speed is energized without delay.

G signal removed from FCB.

• Continuous fan speed is de-energized after 5 second delay.

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

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

of the Heating or Cooling request.

NOTE 3) Hard-wire option not available for variable speed models.

NOTE 4) Continuous blower selection DIP 10 and 11 will cause the blower to run in high cooling speed for all low cooling 0'1) calls.

Continuous blower DIP settings of 00 and 01 will allow low cooling 0'1) calls to operate normally.

Heating(Wl) Request(singlestagethermostatoperation,SW1 DIP switch#3 on the FOBmust

be in OFF position) (see furnace wiring diagram):

24VAC signal applied to Wl terminal of FCB.

• Inducer motor turns on at high speed.

• Following a 15 second prepurge delay after the low pressure switch closes, the ignitor begins a 17 second warm up.

• The gas valve is energized, the main burners light at Low Heat rate.

• The ignitor is de-energized, and the inducer drops to low speed after the main burners ignite.

• The FCB wilt delay Low Heat blower operation for the 45-second Low Heat Fan On Delay time timed from the opening of the gas

valve.

• If the Wl request is still present after 12 minutes, timed from the opening of the gas valve, the inducer switches to high speed,

closing the high pressure switch, then the High Heat solenoid energizes, and the fan switches to High Heat speed.

Wl signal removed from FCB.

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

• The inducer runs at its present speed for a 15 second postpurge period.

52 Specificationsare subject to changewithout notice. 440 012024 01

• The fan runs at its present speed.

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

NOTE 5) If a new Heating request arrives while the control is waiting for the Heat Fan Off Delay time to expire, the FCB will wait for the

selected Heat Fan Off Delay, and then start a new heating cycle.

Heating(Wl & W2) Request(two-stage thermostatoperation,SW1 DIP switch#3 mustbe in ON

position)(see furnacewiringdiagram):

24VAC signals applied to Wl terminal of FCB.

• Same response as single stage thermostat operation described above except the burners, inducer, and blower will not go to high

heat rate, and High Heat Fan speed unless a W2 signal is applied.

24VAC signal applied to Wl and W2 terminals of FCB.

• Same light-off routine as described for the signal stage thermostat operation except burners light at High Heat rate, the inducer

remains on high speed after ignition, and the FCB will delay High Heat blower operation for the 30-second High Heat Fan

On Delay.

NOTE 6) The FCB responds without delay to the presence or loss of W2 (with Wl constant). Wl & W2 result in high inducer, High Heat

rate, and High Heat Fan speed. Wl only results in low speed inducer, Low Heat rate, and Low Heat Fan speed.

Heating Requestwith Gas Shut Off:

24 VAC signals applied to Wl terminal of FCB.

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

remains. Power reset will clear lockout.

• Inducer motor turns on at high speed.

• Following a 15 second prepurge delay after the low pressure switch closes, the ignitor begins warm up.

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

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

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

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

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

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

• The ignitor glows red hot for 22 seconds then turns off. The FCB proceeds to soft lockout. Stops flashing

error code 6, and begins flashing error code 6 + 1.

• The inducer motor de-energizes 15 seconds after error code 6 + 1 starts flashing.

FurnaceControlBoard DiagnosticCodes (See Figure55):

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

Heartbeat = Normal operation or no previous Diagnostic Code

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

If code repeats immediately following power reset then replace control

1 Flash = Not used

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

3 Flashes = Low pressure switch open when should be closed

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

5 Flashes = Flame sensed out of sequence

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

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

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

(roll-out switch requires manual reset)

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

9 Flashes = High pressure switch open when should be closed

10 Flashes = Improper transformer phasing on twinned applications or improper line voltage polarity.

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

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

72 hours or upon power reset.

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

NOTE 7) Continuous blower selection DIP 10 and 11 will cause the blower to run in high cooling speed for all low cooling (Y1) calls.

Continuous blower DIP settings of O0and 01 will allow low cooling (Y1) calls to operate normally.

HUMIDIFIER - The 24VAC HUM is energized when the low pressure switch closes on a call for heat. The 115V HUM (called HUM on

Control) is energized when the inducer is energized.

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

hard-wired continuous fan mode.

440 01 202401 Specificationsare subject to changewithout notice. 53

14. Wiring Diagram *9MPV, *9MVX (Variable S

:'BL_E_LA_S--"-- "

COOLON+SEC(PSCONLY)

I COOL OFF 90 SEC (PSC ONLY)

* FOR VARIABLE SPEED SEE SW2

HEAT -ON

HIGH 30 SEC.

LOW 45 SEC.

EAC + HUM

1,0A MAX COMBINED

I _ I id

_" 0 z_

n ! !

FACTORY

SETTING

FURNACE CONTROL, SWl HEAT OFF DELAY

SWI-1, SW1-2

60 SEC. 100 SEC. 140 SEC. 180 SEC.

)eed Blower Motor)

B ! m m

THERMOSTAT TYPE

SW1-3

SINGLE 2 STAGE

STAGE

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54 Specificationsare subject to changewithout notice. 440 012024 01

15. Thermostat Wiring Guide

1. These diagrams are for reference. See thermostat

wiring instructions for specific terminal assignments,

connections or operation.

2. Humidifier/humidistat is optional and not included

with the furnace.

3. Dehumidify feature (MPV & MVX models only) requires

thermostat with DEHUM feature or a separate dehumi-

distat to get the dehumidification operation. Dehumidis-

tat is optional and not included with the furnace.

4. Underlined terminal indicates intended use for multi-

ple function terminals.

5. TSIB terminals only available on MPV & MVX models.

6. Two-stage Air Conditioning or two-stage Heat Pump

capability only available with MPV & MVX models.

7. W2 furnace operation is from furnace control algo-

rithm SWl DIP switch #3 (TT) set to OFF. Furnace

runs in Low Heat for 12 minutes then switches to High

Heat if heating call still exists.

8. 24V HUM terminal on furnace control is used to power

a humidifier (on call for heat and pressure switch

closed) if no HUM thermostat option is available.

9. DEHUM provides a 20% reduction in airflow (when Y1

or Y1 + Y2 is energized) when the furnace control DE-

HUM terminal is energized with 24V.

10. If no DEHUM thermostat option is available, a dehu-

midistat that has closed contacts on a call for dehu-

midify may be used

11. O provides a 10% reduction in airflow when Y1 or Y1 +

Y2 is energized and O is NOT energized. (J2 jumper

on TSIB must be in HP COMFORT position to get this

function. AC/HP EFFICIENCY position results in no

reduction of airflow for Y1 or Y1 + Y2 calls regardless

of O being energized or not.)

12. For Heat Pump/Furnace systems, refer to Fossil Fuel

Kit or Dual Fuel Thermostat Installation Instructions

for wiring.

HUM and DEHUM Terminal available from Thermostat. Humidifier Wiring (*9MPT, *9MPV, *9MVX)

Models and Dehumidify Wiring (*9MPV & *9MVX Models only)

TSIB NOTE5

NO CONNECTION [_

NO CONNECTION

SINGLE-STAGE

THERMOSTAT

TWO-STAGEorVS

FURNACE

CONTROL

I " I

NOTE 3_ 9_ 10 "1] DEHUM

.... I

24V HUM -.

SINGLE-STAGE

AIR CONDITIONER

[]

OPTIONAL

HUMIDIFIER

NOTE2

44001 2024 01 Specifications are subject to change without notice. 55

.o.0.an<,/o.O_,UMt°..,na,ava,,ab,°,ron,t,.°..ootat.,...,<,,,,°.W,r,n__.,_,_.,_,

*9MVX) Dehumidify wiring (*9MPV & *9MVX Models only)

TSIB NOTE 5

NO CONNECTION

TWO-STAGEorVS

FURNACE

CONTROL

SINGLE-STAGE

THERMOSTAT

OPTIONAL

DEHUMIDISTAT I_

(*MPV Models Only) [_ , ,I_T_ 7

Connect 1 to Y/Y2 for , NOTE 3"1] DEHUM1-stage AC/HP L_.

applications

"1_ 24V HUM _.

' OPTIONAL

'HUMIDISTAT

NOTE 2

SINGLE-STAGE

AIR CONDITIONER

[]

OPTIONAL

HUMIDIFIER i

_ '

NOTE2

NO CONNECTION

(HP mayuseO)

Single-Stage Thermostat with Two-Stage or Variable Speed Furnace (*9MPT, *9MPV, *9MVX) and

Single-Stage Air Conditioner

TSIB NOTE 5

F_q

SINGLE-STAGE

TH ERMOSTAT

OPTIONAL

DEHUMIDISTAT I_

(*MPV Models Only) I I

:_t_.........r_=7............

Connect 1 to Y/Y2 for

1-stage AC/HP

applications

'NOTE 3

L-.

i ......

TWO-STAGE or VS

FURNACE

CONTROL

F_q

•.._ DEHUM

..._ 24V HUM _

OPTIONAL

HUMIDISTAT

NOTE 2

SINGLE-STAGE

AIR CONDITIONER

[]

OPTIONAL

HUMIDIFIER i

_ ,

- i

_ '

....... l

NOTE2

56 Specifications are subject to change without notice, 440 01 202401

__ Two-Stage Thermostat with Two-Stage Furnace or Variable Speed Furnace (*9MPT, *9MPV, *9MVX

Models) and Single-Stage Air Conditioner

TWO-STAGE

THERMOSTAT TSIB NOTE5

OPTIONAL r

DEHUMIDISTAT ,

(*MPV Models Only) _

If no DEHUM from '_

thermostat available '_

___ -'

Connect 1 toY1 for 2- ,

stage AC-HP

applications. ,'

OR '

Connect 1 to Y/Y2 for ,

1-stage AC- HP ',

applications

F_q

NOTE 3, 9, 10

•s

•#

SINGLE STAGE

AIR CONDITIONER

OPTIONAL

HUMIDIFIER

VS FURNACE

CONTROL

F_q

zD DEHUM

[]

NOTE 2

Two-Stage Thermostat with Variable Speed Furnace (*9MPV & *9MVX Models only)

and Two-Stage Air Conditioner

TWO-STAGE

THERMOSTAT TSIB NOTe5

ir....

OPTIONAL

DEHUMIDISTAT _

(*MPV Models Only) ',

If noDEHUM from ,

thermostat available _,

Connect 1toY1 for 2- ,

stage AC-HP

applications. ',

Connect 1toY/Y2 for ,

1-stage AC- HP ',

applications ,

I._.

F_q

NOTE 3, 9, 10

t¢

VS FURNACE

CONTROL

F_q

,•'1] DEHUM

I] 24V HUM

TWO-STAGE

AIR CONDITIONER

[]

OPTIONAL

HUMIDIFIER

...... |

NOTE 2

44001 2024 01 Specifications are subject to change without notice, 57

THIS PAGE LEFT

BLANK

INTENTIONALLY

58 Specifications are subject to change without notice. 440 01 202401

ICP Furnace/Heater, Gas Manual L0910209

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