ICP C9MPT050F12B1, C9MPT075F14B1, C9MPT100J16B1, C9MPT125L20B1, C9MPV050F12B1 Installation Guide

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90+2-stage& *9MPT & *9MPV

VariableSpeed

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!veoFU!onroaCeo,. CT

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FAN ASSISTED,

SAFETY REQUIREMENTS

This furnace ca nbe installed as adirect 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 the Indoor Combustion Airsection inthe Combustion and Ventilation Aircha pter. If combustion air is drawn from outside the structure, it

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

Recognize safety information. This is the safety- alert symbolS. I .When you see this symbol on the furnace and in instructions manuals be alert to the potential for personal injury. Understand the signal words DANGER, WARNING, or CAUTION. These words are used with the safety-alert symbol. DANGER identifies the most

serious hazards, those that will result in severe personal injury or death. WARNING signifies a hazard that could result in personal injury or death.

CAUTION is used to identify unsafe practices that may result in minor personal injury or product and property damage. NOTE is used to highlight

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

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

repair, or service heating equipment.

Untrained service personnel can perform basic maintenance functions such as cleaning and replacing air filters. All other operations must be performed by trained service personnel. When working on heating equipment, observe precautions in the literature, on tags, and on labels attached to or shipped

with the unit and other safety precautions that may apply.

Follow all safety codes. In the United States, follow all safety codes including the current edition National Fuel Gas Code (NFGC) ANSI Z223.1 - 2002/N FPA No. 54-2002. InCanada, refer tothecurrent edition of the National Standard of Canada Natural Gas and Propane Installation Code (NSCNGPIC) CSA B149.1-00. Wear safetyglassesandworkgloves. Havefireextinguisher availableduringstart-upand adjustment procedures and

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

exceed certain local codes and ordinances, especially those that may not have kept up with changing residential construction practices. We require these instructions as a minimum for a safe installation.

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International Comfort Products, LLC Lewisburg, TN 37091

Table of Contents

1.SafeInstallation Requirements ................... 3

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

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

4.Vent& CombustionAir Piping ................... 12

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

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

ELECTRIC SHOCK HAZARD Failure to follow safety

warnings exactly could result in serious injury, death, and/or property damage.

Turn Off All Power Before Servicing.

Printed in U.S.A. 2/9/2005 440 01 2020 (07)

7. DuctworkandFilter ....................... 35

8. Checks and Adjustments .................... 38

9. FurnaceMaintenance ...................... 40

10.SequenceofOperation & Diagnostics .......... 41

11.Concentric VentTermination................. 46

TechSupportand Parts ....................... 49

CARBON MONOXIDE POISONING AND FIRE HAZARD.

Failure to follow safety warnings exactly cou Id result in serious injury, death, and/or property damage.

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

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

instructions for future reference.

Dealer Name:

START-UP CHECK SHEET

For 90+ Furnace

(Keep this page for future reference)

Address:

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

Phone: Owner Name:

Address:

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

Model Number:

Serial Number:

Type of Gas: Natural: _ LP:

Which blower speed tap is used? High Fire __ Low Fire or (Cooling).

Temperature of Supply Air: High Fire (°F)__ or (°C)__

Low Fire (°F).__or (°C)__

Business Card Here

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

Condensate Drain Connected?

Condensate Drain Trapped? YES

Transition Pressure switch hose relocated for U/D/H Application? YES _ NO

Blower Speed Checked? YES _ NO

All Electrical Connections Tight? YES _ NO

Gas Valve OK? YES _ NO

Measured Line Pressure When Firing Unit:

Calculated Firing Rate:(See Checks and Adjustments Sec- tion). (Lo) & (Hi)

YES

NOE_

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

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

Lo Fire (Supply - Return ): (°F) or (°C)__

Filter Type and Size:

Fan "Time ON" Setting:.

Fan "Time OFF" Setting:

Dealer Comments:

[_ 44001202007

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

Measured Manifold Gas Pressure: (Lo) __ & (Hi) __

Static Pressure (Ducts): Supply Air Return

Date of Start-Up: CO?

CO2 ?

1. Safe Installation Requirements

FIRE, EXPLOSION, AND ASPHIXlATION HAZARD Improper adjustment, alteration, service,

maintanence or installation could cause serious 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 L.R gas with approved kit.)

Install this furnace only in a location and position as speci- fied in "2. Installation"of these instructions.

Provide adequate combustion and ventilation air to the fur- nace as specified in "4. Combustion and Ventilation Air" of

these instructions. Combustion products must be discharged outdoors. Con-

nect this furnace to an approved vent system only, as spe- cified in %. Combustion and Ventilation Air, 6. Horizontal

Venting and 7, Masonry Chimney Venting"of these in-

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

mercially available soap solution made specifically for the detection of leaks to check all connections, as specified in "8. Gas Supply and Piping, Final Check"of these instruc-

tions. Always install furnace to operate within the furnace's in-

tended temperature-rise range with a duct system which has an external static pressure within the allowable range, as specified in "Technical Support Manual" of these in-

structions.

• When a furnace is installed so that supply ducts carry air circulated by the furnace to areas outside the space con- taining the furnace, the return air shall also be handled by a duct(s) sealed to the furnace casing and terminating out- side the space containing the furnace.

• A gas-fired furnace for installation in a residential garage must be installed as specified in "2. Installation Require-

ments"of these instructions.

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

• This furnace is NOT approved for installation in mo- bile homes, trailers or recreation vehicles.

• Seal around supply and return air ducts.

• Install correct filter type and size.

• Unit MUST be installed so electrical components are pro- tected from direct contact with water.

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, and several other items.

Carbon monoxide can cause serious bodily injury and/or death. Carbon monoxide or "CO" is a colorless and odorless

gas produced when fuel is not burned completely or when the flame does not receive sufficient oxygen.

Therefore, to help alert people of potentially dangerous ca rbon monoxide levels, you should have a commercially available carbon monoxide alarm that is listed by a nationally recog-

nized testing agency in accordance with Underwriters Labora- tories Inc. Standard for Single and Multiple Station Carbon

Monoxide Alarms, ANSI/UL 2034 or the CSA 6.19-01 Resi- dential Carbon Alarming Devices installed and maintained in

the building or dwelling concurrently with the gas- fired furnace installation (see Note below). The alarm should be installed as

recommended by the alarm manufacturer's installation in- structions.

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

or dwelling. Fire or smoke can cause serious bodily injury, death, and/or property damage. Therefore, in order to alert people of potentially dangerous fire or smoke, you should have fire extinguisher and smoke alarms listed by Underwriters Lab- oratories installed and maintained in the building or dwelling

(see Note below).

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

and makes no representations regarding any brand or type of alarms.

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

do the following:

1. Thoroughly read this manual and labels on the unit. This will help you understand howyour unit operates and the haz-

ards involved with gas and electricity.

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

mediately call a qualified service technician to inspect the unit and to replace any part of the control system and any gas con-

trol which has been under water. Never obstruct the vent grilles, or any ducts that provide

air to the unit. Air must be provided for proper combustion and ventilation of flue gases.

44001202007

FrozenWater PipeHazard

WATER DAMAGE TO PROPERTY HAZARD

Failure to protect against the risk of freezing could result in property damage and/or personal injury.

Do not leave your home unattended for long periods during freezing weather without turning off water

supply and draining water pipes or otherwise protecting against the risk of frozen pipes and resultant damage.

Your furnace is designed solely to provide a safe and comfortable living environment. The furnace is NOT designed to ensure that

water pipes will not freeze. It is equipped with several safety de- vices that are designed to turn the furnace off and prevent it from restarting in the event of various potentially unsafe conditions.

If your furnace remains off for an extended time, the pipes in your home could freeze and burst, resulting in serious water damage.

If the structure will be unattended during cold weather you should take these precautions.

1. Turn off the water supply to the structure and drain the water lines if possible and add an antifreeze for potable water to drain traps and toilet tanks. Open faucets in appropriate

areas.

-or-

Have someone check the structure frequently during cold weather to make sure it is warm enough to prevent pipes from freezing. Instruct them on a service agency to call to provide service, if required.

-or-

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

Winter Shutdown

If you go away during the winter months and do not leave the heat on in your home, the plastic transition box and the condensate trap on the furnace must be protected from freeze damage.(See Figure 9 trough Figure 18)

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

Insert a funnel into the hose and pour four(4) ounces of sani- tary type (RV) antifreeze into the condensate trap. Recon- nect the 5/8" OD rubber hose to the stub on the vent drain

fitting. Secure with the hose clamp.

2. Disconnect the 3/4" OD rubber hose from the condensate trap. Insert a funnel into the hose and and pour four(4) ounces of sanitary type (RV) antifreeze into the plastic Tran- sition box. Squeeze the hose together near the end and quickly reconnect the 3/4" OD rubber hose to the stub on the condensate trap. Secure with the hose clamp.

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

2. Installation

CARBON MONOXIDE POISONING HAZARD

Failure to properly vent this furnace or other appliances could result in death, personal injury

and/or property damage.

This furnace can NOT be common vented or connected to any type B, BW or L vent or vent

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

masonry chimney. If this furnace is replacing a previously common-vented furnace, it may be necessary to resize the existing vent and chimney

to prevent oversizing problems for the other

remaining appliance(s). See Venting and Combus- tion Air Check in the 5. Combusion & Ventilation Air

section. This furnace MUST be vented to the outside.

Location and Clearances

1. Refer to Figure 2 or Figure 3 for typical installation and basic connecting parts required. Refer to Figure 4 for typi- cal horizontal direct vent installation and basic connecting parts required. Supply and return air plenums and duct are also required.

2. If furnace is a replacement, it is usually best to install the fur- nace where the old one was. Choose the location or evalu-

ate the existing location based upon the minimum clearance and furnace dimensions (Figure 1).

FROZEN AND BURST WATER PIPE HAZARD

Failure to protect against the risk of freezing could result in property damage and/or personal injury.

Special precautions MUST be made if installing

furnace in an area which may drop below freezing. This can cause improper operation or damage to

equipment. If furnace environment has the potential

of freezing, the drain trap and drainline must be protected. The use of electric heat tape or RV

antifreeze is recommended for these installations. (See "Condensate Trap Freeze Protection Section")

[_ 44001 2020 07

Dimensions and Clearances

TOP

LEFTSIDE F_611/1_

TRAI,_IIIIIrFvLEO_ - " I --

(ALTERNATE)13J_

;RA_OW/HORIZONTAi_

THermostAt/_7

31/4

21518 J 4718

1718

BOTTOM

23118 J 37/8

_I F

GAS

COMBUSTIBLE MATERIALS FOR ALL UNITS

MINIMUM CLEARANCES TO

AIRINTAKE

REAR O FRONT (combustion air openings in 3"

VENi

furnace and in structure)

Required For Service *24"

ALL SIDES Of SUPPLY PLENUM 1" SIDES O

ELE TR CAL

_1_/4

_11/16

-B-1

FRONT

VENT O TOP OF FURNACE 1"

"30" clearancerecommendedfor casingremoval.

Horizontalposition:Linecontactispermissibleonlybetween

linesformed by intersectionsoftopand twosidesoffurnace jacket,andbuildingjoists,studs orframing.

NOTE: Evaporator "A" coil drain pan dimensions may vary from furnace duct opening size. Always

consult evaporator specifications for duct size requirements.

2 1/

Furnace is designed for bottom return or side return.

Return air through back of furnace is NOT allowed.

Drawing is representative, but some models may vary

2811z --

3/ T' E

23/8--

ALL DIMENSIONS IN INCHES

11116

GAS\

i / 18112

/(COUNTERFLOW)

( _ ELECTRICAL

/AIR INTAKE(ALTERNATE)

f._..IVENT

ZW__ ;_OWIHOR,ZONTAL

-- 7_THH_ERMOSTAT2_

13114

Unit

Capacity

*gMPT050F12B *gMPT075F14B

*gMPT100J16B

*9MPT125L20B

13116 413116

}7/8 11116_

*9MPV050F12B *9MPV075F14B

13 11_1/16

*9MPVIOOJ20B *9MPV125L20B

25-23-36b

44001 2020 07 [_

17t8

Typical Upflow Installation

Aluminum or non-rusting shield recommended.

(See Vent Termination Shielding for dimensions).

"8" Min. 20' Max. _1 I_

in same __ (notused on atmospheric _iL. Single Pipe

zone _ model)

VentPipesMUST b_

supported

Horizontallyand

Vertically

Increaseminimumfrom8 to18 forcoldclimates(sustainedtemperatures

below0o F), 25-23-33

<_ _ InletPipe

Couplingon endsof

_iexhaust pipe. Total

pipe & couplingBut-

Typical Downflow Installation

See VentTermination

Shielding in Vent Section.

_1 _ "8" Min.

Inlet Pipe _ _ 20' Max.insame (notused o_ _ atmosphedczone

Single Pipe_ <_ model)

VentPipes MUST besupportedHorizon-

tallyand Vertically

* Increaseminimumfrom 8 to 18 forcoldclimates(sustained temperatures below 0°F),

Coupling on inside

and outside of wall to

Min.

Max.

same

osphericzone

25-23-33a

CARBON MONOXIDE POISONING HAZARD. Failure to follow safety warnings exactly could

result in serious injury, death, or property damage. Do NOT operate furnace in a corrosive atmosphere

containing chlorine, fluorine or any other damaging chemicals, which could shorten furnace life.

Refer to 4. Vent & Combustion Air Piping section, Contaminated Combustion Air for combustion air

evaluation and remedy.

zone

Installation Requirements

1. Install furnace level.

2. This furnace is NOT to be used for temporary heat of build- ings 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. (See Vent and Combustion Air Piping section).

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

trols and filter.

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

wet at times.

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 furnacejacket, and buildingjoists, studs or framing.

9. Residential garage installations require:

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

• Located or physically protected from possible damage by

a vehicle.

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

nace and condensate trap when the furnace is installed in attic application.

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

• The furnace is permanently installed with all electrical wir-

ing, piping, venting and ducting installed according to these installation instructions. A return air duct is provided, sealed

to the furnace casing, and terminated outside the space

containing the furnace. This prevents a negative pressure condition as created by the circulating air blower, causing a flame rollout and/or drawing combustion products into the

structure.

• The furnace is controlled by a thermostat. It may not be "hot wired" to provide heat continuously to the structure without

thermostatic control.

• Clean outside air is provided for combustion. Thisisto mini-

mize the corrosive effects of adhesives, sealers and other construction materials. It also prevents the entrainment of

drywall dust into combustion air, which can cause fouling and plugging of furnace components.

• The temperature of the return air to the furnace must be

maintained between 55 ° F and 80 ° F, with no evening set- back or shutdown. The use of the furnace while the struc-

ture is under construction is deemed to be intermittent

operation per our installation instructions.

• The air temperature rise iswithin 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.

• Verify the furnace operating conditions including ignition, in-

put rate, and temperature rise and venting according to the manufacturer's instructions.

[_ 440012020 07

Installation Positions

Leveling

This furnace can be installed in an upflow, horizontal (either left or right) or downflow airflow position. DO NOT install this furnace on its back. For the upflow position, the return air ductwork can be at-

tached to either the left or right side panel and/or the bottom. For horizontal and downflow positions, the return air ductwork must be

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

Furnace Installation Considerations

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

Condensate Trap and Drain Lines

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

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

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

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

Horizontal Furnace Installation

This furnace can be installed horizontally in an attic, basement, crawl space, alcove, or suspended from a ceiling in a basement or utility room (See Figure 4). Do not install furnace on its back or in the reverse airflow positions as safety control operation will be ad- versely affected.

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 114"from front to back and from side to side for upflow and downflow installations or top to bottom for horizontal installa-

tions.

Vent and Combustion Air Connections

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

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

locations on the furnace side panels.

Note: On the Direct Vent furnace, the vent pipe attaches to the fur- nace through the side panels. The combustion air pipe attaches to the top panel or to the alternate location on the side panel. On the Single Pipe furnace, the vent pipe attaches to the furnace through the furnace side panels.

Note: Repositioning of the combustion blower is required for the vent pipe connection to the furnace through the "right side" panel.

See "Vent and Combustion Air Piping"section for further details. If the furnace is to be suspended from the floor joists in a crawl

space or the rafters in an attic, it is necessary to use steel pipe straps or an angle iron frame to rigidly attach the furnace to prevent

movement. These straps should be attached to the furnace with sheet metal screws and to the rafters or joists with bolts. The pre- ferred method is to use an angle iron frame bolted to the rafters or

joists. (Take caution to allowdoor panels to be removed for mainte-

nance)

Typical Horizontal Installation

Inlet Pipe (notusedonSinglePipemodel)

Vent Pipe

Condensate Trap

25-23-34

NOTE: 5" bottom clearance required for condensate trap.

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

NOTE: 6" bottom clearance required for condensate trap.

Thirty (30) inches between the front of the furnace and adjacent construction or other appliances MUST be maintained for service

clearance.

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

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

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

For horizontal installation over a finished living space. A field fabri- cated auxiliary drain pan with drain pipe is required to prevent

damage by overflow due to blocked condensate drain.

44001 2020 07 [_

3. Combustion 8, Ventilation Air

For Single Pipe Installation

(Non- Direct Vent)

CARBON MONOXIDE POISONING HAZARD

Failure to provide adequate combustion and

ventilation air could result in death and/or personal

injury.

Use methods described here to provide

combustion and ventilation air.

Furnaces require ventilation openings to provide sufficient air for proper combustion and ventilation of flue gases. All duct or open- ings for supplying combustion and ventilation air must comply with National Fuel Gas Code, NFPA54/ANSI Z223.1, 2002 (or current edition) and applicable provisions of local building codes.

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

1. Section 8.3, Air for Combustion and Ventilation, ofthe Nation- al Fuel Gas Code, National Fuel Gas Code (NFGC), ANSI

Z223.1-2002/NFPA 54-2002 in the U.S.,

2. Sections 7.2, 7.3, 7.5, 7.6, 7.7, and 7.8 of National Standard of Canada, Natural Gas and Propane Installation Code

(NSCNGPIC), CSA B149.1-00 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 Lvent or vent connector, nor to any portion of a facto- ry- built or masonry chimney. Ifthis furnace is replacing a previous- ly common-vented furnace, it may be necessary to resize the existing vent and chimney to prevent oversizing problems for the other remaining appliance(s). See "Venting and Combustion Air

Check"in this section, This furnace MUST be vented to the out- side.

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

And Combustion Air Check in "5. Gas Vent Installation"Section in this manual.

Outdoor Combustion Air Method

A space having less than 50 cubic feet per 1,000 BTUH input rating for all gas appliances installed in the space requires outdoor air for

combustion and ventilation.

Air Openings andConnecting Ducts

1. Total maximum input ratings for all gas appliances in the space MUST be considered when determining free area of

openings.

2. Connect ducts or openings directly to the outdoors.

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

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

5. When sizing grille, louver or screen, use the free area of opening. If free area is NOT stamped or marked on grill or louver, assume a 20 _ free area for wood and 60 _ for metal. Screens shall have a mesh size not smaller than 1/4".

Requirements

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

tical ducts or openings.

2. Figure 5 illustrates howto provide combustion and ventila- tion air when two permanent openings, one inlet and one

outlet, are used.

a. One opening MUST commence within 12" of the floor

and the second opening MUST commence within 12" of the ceiling.

b. Size openings and ducts per Table 1.

o o

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

ThisinstallationNOTapprovedin Canada

Gas Vent _able Ve_)

li'"-1 - I =:=J_

II I1 Soffit Vent

__ir (1) Soffit Vent

c_s Inlet

w_ Air (11 _ Inlet

I_÷ I Air(1)

Jentilated Crawl Space

Minimum One Inlet and One Outlet Air Supply is Required

May be in and Combination Shown

Inlet Air Opening Must be Within12"(300mm) of floor Outlet Air Opening Must be Within12"(300mm) of ceiling

(1) 1 Square Inch (6cm z) per 4000 BTUH (2) 1 Square Inch (6cm z) per 2000 BTUH

c. Horizontal duct openings require 1 square inch of free

a 2

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

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

F...... ('ia,_ L Air (1) _:_

r v_ _. Inlet

"_ _' _ _ Air (2)

11 Outlet

d. Vertical duct openings or openings directly communicat-

ing with the outdoors require 1 square inch of free area

Inlet

Air(1)

:ld, I Eol Inlj] I r_=_l _ _ Airet(2)

44001 2020 07

per 4,000 BTU H (550 mm2/kW) for combined input of all gas appliances in the space (see Table 1).

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

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

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

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

the space.

The opening shall commence within 12" of the top of the enclo- sure. Appliances shall have clearances of at least 1" from the sides

and back and 6" from the front. The opening shall directly commu- nicate with the outdoors or shall communicate through a vertical or horizontal duct to the outdoors or spaces (crawl or attic) that freely

communicate with the outdoors.

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FreeArea

4. Combination of Indoor and Outdoor Air shall have:

Indoor openings that comply with the Indoor Combus- tion Air Method below and

Outdoor openings located as required in the Outdoor Combustion Air Method above and

Outdoor openings sized as follows.

1) Calculate the Ratio of all Indoor Space volume 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.

BTUH

Input Two HorizontalDucts SingleOpening Openings (sq.in./4,000 BTUH)

Rating (sq.inJ2,000 BTUH) (sq.in./3,000BTUH) (sq.in./4,000 BTUH)

50,000 25 sq.in. 16.7sq. in. 12.5sq. in. 4" 75,000 37.5sq. in. 25 sq. in. 18.75sq. in. 5"

100,000 50 sq. in. 33.3sq. in. 25 sq. in. 6" 125,000 62.50 sq. in. 41.7sq. in. 31.25 sq. in. 7" 150,000 75 sq. in. 50sq. in. 37.5sq. in. 7"

EXAMPLE: Determining Free Area

Furnace Water Heater Total Input 100,000 + 30,000 (130,000 + 4,000) 32.5 Sq. In. Vertical

Furnace Water Heater Total Input 100,000 + 30,000 (130,000 + 2,000) 65 Sq. In. Horizontal

Indoor Combustion Air

Standard and Known-Air-Infiltration Rate Methods

Indoor air is permitted for combustion and ventilation, if the Stan- dard or Known-Air-Infiltration Rate Method is used.

CARBON MONOXIDE POISONING HAZARD. Failure to supply adequate combustion air could

result in death and/or personal injury. Most homes will require additional air from

outdoors for combustion and ventilation. A space

MinimumFree Area Requiredfor EachOpening or Ductto Outdoors

TwoVerticalDuctsor Rd Duct

The Standard Method may be used, if the space has no less vol- ume than 50 cubic feet per 1,000 BTUH of the maximum input rat-

ings for all gas appliances installed in the space. The standard method permits indoor air to be used for combustion and ventila-

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

filtration rate is known to be less than 0.40 air changes per hour (ACH) and equal to or greater than 0.10 ACH. Infiltration rates

greater than 0.60 ACH shall not be used. The minimum required volume of the space varies with the number of ACH and shall be determined per Table 2 or Equations 1 and 2. Determine the

minimum required volume for each appliance in the space, and add the volumes together to get the total minimum required vol-

ume for the space.

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

rating or homes with tight construction may need outdoor air, supplied through ducts, to supplement

air infiltration for proper combustion and ventilation of flue gases.

44001 2020 07 [_

MINIMUMSPACEVOLUMEFOR100%COMBUSTIONANDVENTILATIONAIRFROMINDOORS(ft 3)

OtherThan Fan-AssistedTotal Fan-assistedTotal

(1,OOO'sBtuh)

ACH

0.60

0.50

0.40

0.30

0.20

0.I0

0.00

NP = Not Permitted Table 2 Minimum Space Volumes were determined by using the

following equations from the National Fuel Gas Code ANSI Z223.1/NFPA 54-2002, 8.3.3.2:

1. For other than fan-assisted appliances such as a draft hood-equipped water heater,

Volume other - 21 ft3 _k I other )

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

Volume

If:

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

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

• Combining spaces on the same floor level. Each opening

• Combining spaces on different floor levels. The volumes of

fan

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

appliances in Btu/hr

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

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

are no closable doors between rooms.

communicates with the outdoors provided there are adequate

ventilation openings directly to outdoors. Openings MUST re-

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

tilation openings to outdoors MUST be at least I square inch

of free area per 4,000 BTU H of total input rating for all gas ap- pliances in the space.

shall have a free area of at least 1" 2/1,000 BTUH (2,000 mm2/kW) of the total input rating of all gas appliances in the

space, but not less than 100 in2 (0.06 m2). Once opening shall commence within 12" (300 ram) of the ceiling and the

second opening shall commence within 1 2" (300 ram) of the floor. The minimum dimension of air openings shall be at least

3" (80 ram).

spaces on different floor levels shall be considered communi- cating spaces if connected by one or more permanent open- ings in doors or floors having a free area of at least 2" 2/1,000 Btuh (4,400 mm2/kW) of total input rating of all gas ap-

pliances.

1,050 1260

1,575 2,100 3,150 6,300

I 40

1,400 1,680

2,100 2,800 4,200 8,400 10,500 7,500 11250 15,000

NP NP NP NP NP

/ \

ACH 1000Btu / hr

15 ft 3 _, I fan

ACH 1000 Btu / hr

1,750 2,100

2,625 3,500 5,250

)

(1,000'sBtuh)

1250 1,500

1,875 2,500 3,750

In spaces that use the Indoor Combustion Air Method, in- filtration should be adequate to provide air for combustion, ventilation and dilution of flue gases. However, in buildings

with unusually tight construction, additional air MUST be pro-

vided using the methods described in section titled Outdoor

Combustion Air Method:

• Unusually tight construction is defined as Construction with

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

2. Doors and openable windows are weather stripped and

3. Other openings are caulked or sealed. These include

1,875

2,250 2,813

3,750

5,625

tinuous, sealed vapor barrier. Openings are gasketed or sealed and

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.

100

2,500 3,000

3,750 5,000 7,500

125

3,125 3,750

4,688 6,250 9,375

18,750

150

3,750 4,500

5,625 7,500

11250

22,500

Ventilation Air

Some provincial codes and local municipalities require ventilation or make-up air be brought into the conditioned space as replace- ment air. Whichever method is used, the mixed return air tempera-

ture across the heat exchanger MUST not fall below 60 ° so that flue gases will not condense excessively in the heat exchanger. Excessive condensation will shorten the life of the heat exchanger

and possibly void your warranty.

[_ 440012020 07

Venting and Combustion Air Check

The following information is supplied to allow the installer to make adjustments to the setup of existing appliances, IF REQUIRED, based on good trade practices, local codes, and good judgement

of the installer. Manufacturer does NOT take responsibility for modifications made to existing equipment.

NOTE: If this installation replaces an existing furnace from a commonly vented system, the original venting system may no lon- ger be sized to properly vent the attached appliances. An improp- erly 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

,,-,q

Vent Pipe--'_l I_ S Draft Hood

Typical Gas f "_

Water Heater ( I I %Vii...._ Match

I I

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

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. Placethe 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 burner operation. Use the flame of a match or candle. (Figure 6)

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

tests, the venting system must be corrected in accor- dance with the National Fuel Gas Code, ANSI

Z223.1/NFPA 54 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.

For Two Pipe Installation

This furnace can NOT be common vented or connected to any type B, BW or Lvent or vent connector, nor to a ny portion of a facto-

ry-built or masonry chimney. If this furnace is replacing a previous- ly common-vented furnace, it may be necessary to resize the existing vent and chimney to prevent oversizing problems for the other remaining appliance(s). See "Venting and Combustion Air

Check"in this section, This furnace MUST be vented to the out-

side.

44001 2020 07 [_1

4. Vent and Combustion Air Piping

CARBON MONOXIDE POISONING HAZARD.

Failure to properly vent this furnace could result in death and/or personal injury.

Use methods described here to provide combustion and ventilation air.

Dual Certified (*9MPT & *9MPV Models)

This furnace is certified as a category IV appliance and is fan as- sisted. A catefory IV appliance is a direct vent central furnace which operates with a positive vent static pressure and a flue loss

less than 17%. This furnace can be installed as a direct vent fur- nace using outside air for combustion or the furnace can use air

from inside the structure for combustion. The INLET air pipe is op- tional. 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 Ven- tilation Air chapter. If combustion air is drawn from outside the

structure, it MUST be taken from the same atmospheric pressure zone as the vent pipe.

Contaminated Combustion Air

Installations in certain areas or types of structures could cause ex- cessive exposure to contaminated air having chemicals or halo-

gens that will result in safety and performance related problems and may harm the furnace. These instances must use only out-

door air for combustion.

The following areas or types of structures may contain or have ex- posure to the substances listed below. The installation must be evaluated carefully as it may be necessary to provide outdoor 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.

Ventand Combustion Air Piping Guidelines

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

NOTE: All PVC, CPVC, ABS, and Cellular Core pipe fittings, sol- vent cement, primers and procedures must conform to American

National Standard Institute and American Society for Testing and Materials (ANSI/ASTM) standards.

• Pipe and Fittings (in Italics)- ASTM D1785, D2241, D2466, D2661, D2665, F-891, F-628.

• PVC Primer and Solvent Cement (in Italics)- ASTM D2564.

• Procedure for Cementing Joints (in Italics)- Ref ASTM D2855.

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

codes of country having jurisdiction.

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

and air inlet pipe by referring to all of the instructions and guidelines in this Section.

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

3. Loosely assemble all venting parts without adhesive (pipe

joint cement) for correct fit before final assembly.

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

leaves the vent pipe (See Speciallnstruction ForHorizontal

Vents).

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

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

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

required to properly return condensate to the furnace drain system.

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

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

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

11. The maximum pipe length is 40' total in the inlet oroutlet side of the system. Upto five, 90° elbows can be used on the

inlet orthe outlet. With the Concentric Vent Termination Kits (NAHAO01CV or NAHAOO2CV), the maximum pipe length

is 35' with 4 90° elbows. If more elbows are required, reduce the length of both the inlet and exhaust pipes 5' for each additional elbow used. (See Table 3 or Table 4).

12. The minimum pipe run length is 2'.

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

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

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

14. The vent outlet MUST be installed to terminate in the same atmospheric pressure zone as the combustion air inlet.

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

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

chimney.

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

vented into the chimney.

44001 2020 07

• The top of the chimney MUST be sealed flush or crowned up to seal against rain or melting snow so ONLY the piping protrudes.

• The termination clearances shown in Figure 7 are main-

tained.

16. Furnace applications with vertical vents requiring vent di- ameter increaser fittings must have increaser fittings

installed in vertical portion of the vent. Condensate will be trapped in the vent if the vent diameter is increased prior to having an elbow turned upward. This could cause nuisance

tripping of the pressure switch.

Piping InsulationGuidelines

Pipe Diameter Table

Single Piping ONLY

50,000 & 75,000 Btuh Furnaces

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

100,000 Btuh Furnace

40' & (5) 90° elbows with 3" PVC pipe

125,000 Btuh Furnace

40' & (5) 90° elbows with 3" PVC pipe

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

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

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

shown in the tables but not smaller diameters than shown.

NOTE: Use closed cell, neoprene insulation or equivalent. If Fiber- glass or equivalent insulation is used it must have a vapor barrier. Use Rvalues of 7 upto 10', R-11 if exposure exceeds 10'. If Fiber-

glass insulation is used, exterior to the structure, the pipe MUST be boxed in and sealed against moisture.

.When the vent or combustion air pipe height above the roof exceeds 30", or if an exterior vertical riser is used on a hori-

zontal vent to get above snow levels, the exterior portion MUST be insulated.

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

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

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

Sizing Combustion Air andVentPipe

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.

Double Pipe Installation-If installing as a direct-vent ap- pliance, consult Table 4 to select the proper diameter ex- haust and combustion air piping. Exhaust and combustion air piping is sized for each furnace Btuh size based on total lineal vent length (on inlet oroutlet side), and number of 90 ° elbows required.

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 need-

ed to bring termination above expected snow levels. The el- bow inside the furnace on the *9MPD IS NOT included in the

count.

Ta_i _ Pipe Diameter Table

Dual Piping ONLY

50,000 & 75,000 Btuh Furnaces

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

100,000 Btuh Furnace

40' & (5) 90° elbows with 3" PVC pipe

125,000 Btuh Furnace

40' & (5) 90° elbows with 3" PVC pipe

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

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

used.

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

or outlet side.

For "Concentric Termination Kit" Venting table, see

"Section 11" in this manual.

Vent Termination Clearances

CARBON MONOXIDE POISONING, FIRE AND

EXPLOSION HAZARD. Failure to properly vent this furnace could result in

death, personal injury and/or property damage. Inlet and outlet pipes may NOT be vented directly

above each other.

1. Determine termination locations based on clearances spe- cified in following steps and as shown in Figure 7, Figure 8, Figure 20, through Figure 27.

For "Concentric Termination Kit" clearances, see Figure 47, Figure 48, Figure 49, Figure 50 and Figure 51 in "Section 10"

in this manual.

This furnace is Dual Certified and can be installed as a single pipe appliance (all combustion from inside the struc-

ture) or as a direct vent appliance where all combustion air is taken from outside the structure.

3. For Single Pipe installation refer to Figure 8 for vent ter- mination clearances.

4. For Direct Vent installation, refer to Figure 7 for vent ter- mination.

44001 202007 [_

Item Clearance Description

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

anticipated snow level

B Clearance to a window or door thai 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 centedine of the terminal

E Clearance to an unventilated soffit

P Clearance to an outside corner

G Clearance to an inside comer

H Clearance to each side of the centefline extended above

electrical meter or gas service regulator assembly

I Clearance to service regulator vent outlet

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

the combustion air inlet to any other appliance

Canadian Installation (1)

12" (30cm)#

6" (15 cm) for appliances _< 10,000 BTUH (3kW), 12" (30 cm) for appliances > 10,000 Btuh (3 kW) and _<100,000 Btuh

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

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

3' (91 cm)

6" (15cm)forappliances_<10,000BTUH(3kW),0" (23cm) forappliances> 10,000Btuh (3 kW) and _<100,000Btuh(30

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

12" (30cm)

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

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

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

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

6" (15cm)forappliances_<lO,OOOBTUH (3kW),O" (23cm)

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

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

U.S. Installation (2)

> 50,000Bmh(15kW)

K Clearance to a mechanical air supply inlet

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

M Clearance to each side of the centefline extended above or

below vent terminal of the furnace to a dryer or water heater vent, or other appliance's direct vent intake or exhaust.

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

(1.) In accordance with the currem CSA B149.1, Natural Gas and Propane Installation Code (2,) In accordance w0h the current ANSI Z223.1/NFPA 54, National Fuel Gas Code

# 18" (46 cm) above roof surface + Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor.

For deara nces not specified in AN SI Z223.1/N FPA 54 or CSA B149,1, clearances shall be in accordance with local installation codes and the requirements of the gas supplier and the manufacture's installatie instructions.

Notes:

1. The vent for this appliance shall not terminate a. Over public walkways; or b. Near soffit vents or crawl space vents or other areas where condensate or vapor could create a nusiance or hazard or property damage; or c. Where condensate vapor could cause damage or could be detrimental to the operation of regulalors, relief valves, or other equipment.

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

Recircula0on can cause poor combustion, inlet condensate problems, and accelerated corrosion of the heal exchangers.

6' (1.83m)

12" (30 cm) +

12" (30 cm)

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

12" (30 cm)

3' (91 cm)

[_ 440012020 07

Other than Direct Vent Termination Clearance

Item Clearance Descriptions

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

anticipated snow level

B Clearance to a window or door thai may be opened

Clearance to a permanently closed window

Vertical clearance to a ventilated soffit located above the * terminal within a horizontal distance of 2' (61cm) from the

centerline of the terminal

Clearance to an unventilated soffit *

F Clearance to an outside corner *

G Clearance to an inside comer *

H Clearance to each side of the centedine extended above

eleclrical meter or gas service regulator assembly

I Clearance to service regulator vent outlet

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

the combustion air inlet to any other appliance

K Clearance to a mechanical air supply inlel

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

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

below vent terminal of the furnace to a dryer or water heater vent, or other appliance's direct vent intake or exhaust.

N Clearance from a plumbing vent stack

(1.) In accordance with the current CSA B149.1, Natural Gas and Propane Installation Code (2.) In accordance wilh the current ANSI Z223.1/NFPA 04, National Fuel Gas Cede

# 18" (46 cm) above roof surface + Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor.

For clearances not specified in ANSI Z223.1/NFPA 04 or CSA B140.1, clearances shall be in accordance with local installalion codes and the requirements of the gas supplier and the manufacture's installation instructions.

Notes:

1. The vent for this appliance shall not terminale a. Over public walkways; or b. Near soffit vents or crawl space venta or other areas where condensate or vapor could create a nusiance or hazard or property damage; or c. Where condensate vapor could cause damage or could be detrimental to the operafion of regulalors, relief valves, or other equipmenL

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

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

12" (30cm)#

0" (10 cm) for appliances _< 10,000 BTUH (3kW), 12" (30 cm) for appliances > 10,000 Btuh (3 kW) and _<100,000 Btuh (30 kW), 30" (01 cm) for appliances > 100,000 Btuh (30 kW)

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

3' (91 cm)

6" (15cm)forappliances_<10,OOOBTUH(3kW),12" (30 cm)forappliances> 10,000Btuh(3kW) and _<100,000Btuh

(30 kW),30" (91 cm) for appliances> 100,000Btuh(30 kW) 6' (1.83m)

12" (30 cm) +

3' (91 cm)

Canadian Installation (1)

U.S.Installation(2)

12" (30cm)

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

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

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

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

3' (91 cm)

44001 202007

CondensateDrainTrap

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

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

ting. The drains connect to the 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 fur- nace to properly prime the condensate trap with water. Until the trap is fully primed, some condensate will be pulled into the com- bustion blower. The furnace may cycle on the pressure switch con-

nected to the plastic transition box due to condensate buildup. After the trap is primed, the condensate will start draining from the furnace. The combustion blower will clear out any remaining con- densate in the blower housing through the vent fitting downstream of the blower. Note that the condensate trap can also be primed by

pouring water into the 1/2" drain hose. Remove the1/2" ID drain hose from either the gutter or the white PVC Tee Trap. Using a fun-

nel pour eight (8) ounces of water into 1/2" ID drain hose.Water will flow through the drain hose and into the condensate drain trap. This will prime both the vent and the transition sides of the trap. Re-

connect the 1/2, ID drain hose to the original component, either the gutter or the PVC Tee Trap.

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

pipes and hoses may be used as allowed by local codes. The drain line must maintain a 1/4" per foot downward slopetoward

the drain. 1/4" per foot is recommended. Installation of an overflow line is recommended when the 1/4" per foot slope to the conden-

sate drain cannot be maintained. See Figure 18 for proper routing and installation of the overflow.

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

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.

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

densate pump must be approved for use with acidic condensate.

2. A plugged condensate drain line or a failed condensate pump will allow condensate to spill. If the furnace is installed

where a condensate spill could cause damage, it is recom- mended that an auxiliary safety switch be installed to pre- vent operation of the equipment in the event of pump failure or plugged drain line. If used, an auxiliary safety switch should be installed in the R circuit (low voltage) ONLY.

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

FROZEN AND BURST WATER PIPE HAZARD

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

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.

Condensate Drain Trap Freeze Protection

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

[_ 440012020 07

Upflow Installations Top Vent

/On Some Models

ONLY

Vent Drain & Clamps

Dual Pressure Switch Detail

_ __ Drainfub_ "_ _ _/_ sis" ID

_] DrainConnector Black PVC

p_],==l / 3/4"PVCX l/z" CPVC

Casing Grommet

BlackRubber s/8" ID

(Looseparts bag)

(Optional)

Corrugate

Drain LineVentTee314"PVC or 1/2"CPVC(Field supplied)

Drain TubeBlack Rubbers/8" ID &Clamps Cut length to fit (Loose partsbag)

25-24-42

Upflow Installations Top Vent (SeeFigure 9)

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

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

Install the 1/2" CPVC street elbow on discharge of Trap Install the black PVC tube connector (3/4" PVC x 1/2" CPVC from

loose parts bag) as shown in the illustration above. Cut the black Drain Tube (5/8" ID - in loose parts bag) to length to

fit between Trap and tube connector through grommet. Clamp both ends of the Drain Tube using clamps provided.

44001 202007 [_

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

Connect the Tee trap and the main drain line exiting the casing as shown Figure 18.

Note: It is recommended that all PVC piping and fitting connec- tions be fit up and inspected before final cementing. Trap must be

primed before operation. Verify all condensate drain connec- tions are securely clamped. A coupling and clamps (in loose part

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

Upflow Installations Vent thru Left Side

/Plastic Cap

Yelloworblack

Coupling & Clamps

VentDrain &Clamps Either:ThePVC DrainTee or

afield supplied 2" PVCTee

On SomeModels ONLY

Dual Pressure Switch Detail_

CasingGrommet

s/{' ID (Loosepartsbag)

DrainTube BlackRubbel

1/2"ID& Clamps

DrainConnector BlackPVC 3/4"PVCX 1/2"CPVC

(Loosepartsbag)

DrainLineVentTee /4 PVC or /2 CPVC (Fieldsupplied)

TeeTrapWhite PVC (loosepartsbag)

DrainTube

s/{' ID& Clamps

3 t_ 1 n

Sin qle Pressure Switch

BlackRubber3/16"ID

SIDE VIEW

FF_otate downward

NOTF. Buell-in channel will

be angled 5° to 10° also.

25-24-43

Upflow Installations Vent thru Left Side (SeeFigure10)

Remove Drain Tee from inducer discharge and remove black Drain Tube (1/2" ID) from bottom of Drain Tee. (*9MPT or V models

only) Install Vent Pipe grommet in side of casing.

Cut an appropriate length of 2" PVC pipe long enough to exit the cabinet and connect the vent drain to either:

• A 2" PVC coupling fastened onto the Drain Tee (*9MPT or V models)

Install Tee trap into bottom of tee. Install the 112" CPVC street elbow on discharge of Trap

Install the black PVC drain connector (3/4" PVC x 1/2" CPVC from loose parts bag) as shown in the illustration above.

[_ 440012020 07

Cut the black Drain Tube (5/8" ID - in loose parts bag) to length to fit between Trap and tube connector through grommet.

Clamp both ends of the Drain Tube using clamps provided. Glue the CPVC street elbow to the Trap using appropriate cleaner

and solvent cement. Connect the Tee trap and the main drain line exiting the casing as

shown in Figure 18. Note: It is recommended that all PVC piping and fitting connec-

tions be fit up and inspected before final cementing. Both the in- ternal Trap and the external Tee Trap must be primed before operation. Verify all condensate drain connections are securely

clamped. A coupling and clamps (in loose part bag) may be installed as shown for future servicing of the vent system.

All Models Vent thru Right Side

On Some Models

VentDrain & Clamps

Drain Tube

Corrugated sl8" ID & Clamps

SIDE VIEW

/_Rotat e downward

Dual Pressure Switch

,ReliefTube

BlackRubber3/16"ID

Barbed Cot

Either:The PVC

Drain Teeor a field supplied 2" PVC Tee

Single Pressure Switch Detail

TeeTrapWhite PVC

Elbows Tubes (2) Black Rubber

1/2" ID & Clamps (loose parts bag)

I, llz" OD

Drain Line Vent Tee 3/4" PVC

CPVC (Field supplied)

DrainConnector Black PVC

PVCX 1/2"CPVC

(Loosepartsbag)

NOTE'r. Built-in channel will

he angled 5° to 10° also.

All Models Vent thru Right Side (SeeFigure 11)

Disconnect the black Drain Tube between the drain vent and the Trap.

Rotate the inducer 180 ° for a right side vent after loosening the 4 inducer attachment screws. Reinstall and retighten the inducer

screws to 20" pounds torque. Using the /2' OD barbed coupling in the loose parts bag connect

together with the 2 short /2' ID elbowtubes and connect the lower discharge port of the vent drain to the Trap. Secure all connections

with clamps. Install the vent pipe grommet into the casing Cut an appropriate length of 2" PVC pipe long enough to exit the

cabinet and connect the vent drain to either:

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

Install Tee Trap into bottom section of Tee. Remove plug from the side of the furnace casing where Drain Tube

will exit.

1 ,

models)

Grommet

BlackRubber5/8"CPVC

(Loosepartsbag) 25-24-44

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

Install the 1/2" CPVC street elbow on discharge of Trap Install the black PVC tube connector ( /4' PVC x 1/2" CPVC from

3 , loose parts bag) as shown in the illustration above Cut the black Drain Tube (5/8" ID - in loose parts bag) to length to

fit between Trap and tube connector through grommet. Clamp both ends of the Drain Tube using clamps provided. Glue the CPVC street elbow to the Trap using appropriate cleaner

and solvent cement. Connect the Tee trap and the main drain line exiting the casing as

shown in Figure 18. Note: It is recommended that all PVC piping and fitting connec-

tions be fit up and inspected before final cementing. Both the in- ternal Trap and the external Tee Trap must be primed before

operation. Verify all condensate drain connections are securely clamped. A coupling and clamps (in loose part bag) may be

installed as shown for future servicing of the vent system.

44001 2020 07 [_

Downflow Left Side Vent and Trap

Cap

Yellowor black

Coupling & Clamps

VentDrain &Clamps

(Optionally,,

Either: The PVC

TeeTrapWhite PVC

(looseparts

Single Pressure Switch Detail Elbow Tube

1/2"ID& Clamps (LooseParts \

Bag)

BlackRubber

WARNING

MoveCaps to

top of trap

DrainTube

Rubber

& Clamps

Dual Pressure Switch

Relief Tube

SIDE VIEW

_o otatedownward

o 10°

NOT_

be angled 5° to10° also.

/On SomeModels

,/ONLY

INLET h 4=

Connector,

3/16" OD (Loose Parts Bag)

Relief Tube Extension

Rubber 3/16" ID Cut to fit

(Loose Parts Bag)

TrapConnection "Clampears"

DrainTubeBlack, sis" IDCorrugated

Cut at straight section

Leaveroom for clamp

Cut Here

Downflow Left Side Vent and Trap (SeeFigure 12)

Remove the inducer mounting screws, rotate the inducer 180 ° and retighten the inducer screws to 20" pounds torque.

Disconnect the hoses from the Trap assembly, and remove Trap and Trap mounting bracket from the blower compartment. Using

cover plate and gasket provided in the loose parts bag, cover the hole from the burner compartment to the blower compartment and

secure with screws. Move the caps to the top of the Trap and mount the Trap externally

to the left side of the unit using the 2 screws provided. Cut the 5/8" ID corrugated hose as shown above and fasten the 90 °

bend end to the Trap and fasten the straight end to the transition drain. Secure both connections with clamps.

Reconnect the 1/2" ID drain hose from the vent drain to the Trap and secure with a clamp. In some cases, additional length will be

required for this hose. Use the Black plastic 1/2" OD barbed cou- pling and a suitable section of 1/2" ID hose to make the connection.

Secure all connections with clamps Connect the 3/16" ID relief tube from the small port on the Trap to

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

ointedOUT

Preassemble & insert into furnace

25-24-45

cases, additional hose length will be needed. Use the clear plastic 3/16" OD flexible tubing connector and a suitable length of extra 3/16" ID hose to make this connection.

Install the vent pipe grommet into the casing

Cut an appropriate length of 2" PVC pipe long, enough to exit the cabinet and connect the vent drain to either:

• A 2" PVC coupling fastened onto the Drain Tee (*9MPT or V models)

Install Tee Trap into bottom section of Tee.

Connect the Tee trap and the main drain line exiting the casing as shown in Figure 18.

Note: It is recommended that all PVC piping and fitting connec- tions be fit up and inspected before final cementing. Both the ex- ternal Trap and the external Tee Trap must be primed before

operation. Verify all condensate drain connections are securely clamped. A coupling and clamps (in loose part bag) may be

installed as shown for future servicing of the vent system.

[_ 440012020 07

Downflow Right Side Vent and Trap

Vent Drain & Clamps

SIDE VIEW

_Rotate downward

NOTE'r. Built-in channel will he angled 5° to 10° also.

Single Pressure Switch Detail

Elbow Tube BlackRubber 1/2"ID &Clamps

(LoosePartsBag)

BarbedCoupling 1/2"OD (Loose Parts Bag)

Dual Switch

Relief Tube

Black Rubber

3116" ID

Drain Tube Black Rubber

1/2" ID Cut to Fi

Trap Connection

Preassemble & insert inlo furnace

Coupling & Clamps

(Optional)

Either: ThePVC Drain Teeor a field

DrainTubeCorrugated s/8"ID& Clamps

Downflow Right Side Vent and Trap (SeeFigure 13)

Remove the Drain Tee if installed.

Disconnect the hoses from the Trap assembly, and remove Trap and Trap mounting bracket from the blower compartment. Using

cover plate and gasket provided in the loose parts bag, cover the hole from the burner compartment to the blower compartment and

secure with screws.

Move the caps to the top of the Trap and mount the Trap externally to the right side of the unit using the 2 screws provided.

Connect the corrugated Drain Tube from the transition box to the Trap as shown. If an extension is required, use the black PVC tube

connector and the black 5/8" ID Drain Tube in the loose parts bag. Cut tube to length. Secure all connections with clamps.

Connect the drain hose from the Vent Drain to the Trap. If an ex- tension is required, use the black 1/2" OD barbed coupling, con-

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

TeeTrapWhite PVC (loosepartsbag)

MoveCaps to topof trap

DrainTube Black Rubber

_"ID Cutto Fit & Clamps

(LooseParts Bag)

25-24-46

drain tube to make connection from the vent drain to the trap. Se- cure all connections with clamps.

Install the vent pipe grommet into the casing Cut an appropriate length of 2" PVC pipe long, enough to exit the

cabinet and connect the vent drain to either:

• A 2" PVC coupling fastened onto the Drain Tee (*9MPT or V models)

Install Tee Trap into bottom section of Tee. Connect the Tee trap and the main drain line exiting the casing as

shown in Figure 18. Note: It is recommended that all PVC piping and fitting connec-

tions be fit up and inspected before final cementing. Both the ex- ternal Trap and the external Tee Trap must be primed before operation. Verify all condensate drain connections are securely

clamped. A coupling and clamps (in loose part bag) may be installed as shown for future servicing of the vent system.

44001 2020 07 [_

Horizontal Left Thru Top

VentDrain & Clamps

Plastic Caps

Alternate Orienation

]

Dual Pressure Switch

D___

Single Pressure Switch Detail

ReliefTube BlackRubber

," ID

Trap Connection

_ "Clamp ears"

Pointed OUT

Preassemble &

insert into furnace

-_ Field

Supplied Tee

TeeTrapWhite PVC

(looseparts bag)

Coupling & Clamps (Optional)

CapandClamp Open End

Drain Tube

Black Rubber 1/2" ID & Clamps

Horizontal Left-Thru Top (SeeFigure14)

Disconnect the hoses from the Trap assembly, and remove Trap and Trap mounting bracket from the blower compartment. Using

cover plate and gasket provided in the loose parts bag, cover the hole from the burner compartment to the blower compartment and

secure with screws. Mount the Trap externally to the bottom side of the unit using the

2 screws provided in the location shown. Cut the corrugated tube as shown in the illustration above. Con-

nect the corrugated hose from the transition to the Trap. Secure connections with clamps.

Remove the black 1/2" ID Drain Tube from the Drain Tee. Install a yellow cap and clamp over the open drain port of the Drain Tee.

Connect the black 1/2" ID Drain Tube from the Vent Drain to the Trap. Secure connections with clamps.

Connect the 3/16" ID relief tube to the middle port on the Trap. If an extension is required, use the 3/16" OU flexible tubing connector

/' /Cut to Fit (Loose Parts Bag)

DrainTubeCorrugated /8 ID& Clamps Cut at straight section

_Cut Here

Leaveroomfor clamp

and the black 3/16" ID relief tube in the loose parts bag. Cut tube to length. Secure all connections with clamps.

Cut an appropriate length of 2" PVC pipe, long enough to exit the cabinet and connect the vent drain to either:

• A 2" PVC coupling fastened onto the Drain Tee (*9MPT or V models)

Install Tee Trap into bottom section of Tee. Connect the Tee trap and the main drain line exiting the casing as

shown in Figure 18. Note: It is recommended that all PVC piping and fitting connec-

tions be fit up and inspected before final cementing. Both the ex- ternal Trap and the external Tee Trap must be primed before

operation. Verify all condensate drain connections are securely clamped. A coupling and clamps (in loose part bag) may be

installed as shown for future servicing of the vent system.

25-24-47

[_ 44001 2020 07

Horizontal Left-Side Vent

Single Pressure Switch Detail

Alternate Orienation

f P,as,icCap

T_ 7/ /'_/l _ J // -" _]IL Yellow or black

I Dual pr essuRriiST_tthRlack ,u h_ // &Clamps

I 1o / zElb°""beBlac.rubber

/ I I 10_ / _ _ 1/2" ID & Clamps (Loose Parts Bag)

Tee Trap White !V_ _ ,'__BarbedCouplingl/2 "OD

h I I ©'_==_ .L DraintubeBUckrubber

// \ ,,

Flex,bleTubm Connector / / _' _ DrainTubeCorru atedS/8 ID&Clam s 3116"OD (Loo_geParts Bag_// BR;_icekf i_ubbErX_n,s,'_ W_ARNING_ _ut at straight section P

Cutto Fit (LooslSpartsBag) Move Capsto _._ i

Horizontal Left- Side Vent (SeeFigure 15)

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

Rotate the inducer 180 ° for a side vent after loosening the 4 induc- er attachment screws. Reinstall and retighten the inducer screws

to 20" pounds torque. Disconnect the hoses from the Trap assembly, and remove Trap

and Trap mounting bracket from the blower compartment. Using cover plate and gasket provided in the loose parts bag, cover the

hole from the burner compartment to the blower compartment and secure with screws.

Mount the Trap externally to the bottom side of the unit using the 2 screws provided in the location shown.

Cut the corrugated tube as shown in the illustration above. Con- nect the corrugated hose from the transition to the Trap. Secure connections with clamps.

Connect the black 1/2" ID Drain Tube from the Vent Drain to the Trap. If an extension is required, use the black 1/2" OD flexible tub-

ing connector and the black 1/2" ID Drain Tube in the loose parts bag. Cut tube to length. Secure connections with clamps.

Connect the 3/16" ID relief tube to the middle port on the Trap. If an extension is required, use the 3116"0D flexible tubing connector

CI t°p°ftrap Leave_ I

25-24-48

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

Cut an appropriate length of 2" PVC pipe, fittings and extension pipe long enough to exit the cabinet and connect the vent drain to

either:

• A 2" PVC coupling fastened onto the Drain Tee (*9MPT or V models)

Install Tee Trap into bottom section of Tee. Important: The pipe to the Tee Trap must be level or sloping to-

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

shown in Figure 18. Note: It is recommended that all PVC piping and fitting connec-

tions be fit up and inspected before final cementing. Both the ex- ternal Trap and the external Tee Trap must be primed before

operation. Verify all condensate drain connections are securely clamped. A coupling and clamps (in loose part bag) may be installed as shown for future servicing of the vent system.

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

shown for future servicing of the vent system.

44001 202007 [_

Horizontal Right thru Top

TrapConnection

Preassemble& insertintofurnace

"Clampears" Alternate Orienation

Single Pressure Switch Detail

Yelloworblack

PlasticCap

ElbowTube Black Rubber _

1/2"ID &Clamps VentDrain (LoosePartsBag) &Clamps

WARNING \ Coupling & Clamps

Add Cap andClamp \ (Op!ional) Field....

\\ \/ _ buppaeu zee

ReliefTubeBlackRubber3/ls"lO _ _ _ _ J

_ __ _ TeeTrap

FlexibleTubingConnector _"_/ _ _ _/White PVC

BlackRubber3/ls"lD __' _-__ _ _ _ _ [_ I h_

Cutto Fit (LoosePartsBag) __" =_,__ _' II_EI_- INLET

__/ _ _]- _ _ On SomeModels

_) _/r____' _ _ "_L _ ONLY

Cut at straight section I / | DrainTubeBlackRubber

_ / 1/2 ID&Clamps

Leaveroom forclamp _ - -

• J'_ _"_ Cut Here | 25 24 49

Horizontal Right Thru Top (SeeFigure 16)

Disconnect the hoses from the Trap assembly, and remove Trap and Trap mounting bracket from the blower compartment. Using

cover plate and gasket provided in the loose parts bag, cover the hole from the burner compartment to the blower compartment and secure with screws.

Mount the Trap externally to the bottom side of the unit using the 2 screws provided in the location shown.

Cut the corrugated tube as shown in the illustration above. Con- nect the corrugated hose from the transition to the Trap. Secure

connections with clamps. Connect the black 1/2" ID Drain Tube from the Vent Drain to the

Trap. If an extension is required, use the black 1/2" OD barbed coupling and the black 1/2" ID Drain Tube in the loose parts bag.

Cut tube to length. Secure connections with clamps. Connect the 3/16" ID relief tube to the middle port on the Trap. If

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

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

tube to length.

Cut an appropriate length of 2" PVC pipe, fittings and extension pipe long enough to exit the cabinet and connect the vent drain to

a standard field supplied 2" PVC tee

Install Tee Trap into bottom section of Tee.

Connect the Tee trap and the main drain line exiting the casing as shown in Figure 18.

Note: It is recommended that all PVC piping and fitting connec- tions be fit up and inspected before final cementing. Both the ex-

ternal Trap and the external Tee Trap must be primed before operation. Verify all condensate drain connections are securely

clamped. A coupling and clamps (in loose part bag) may be installed as shown for future servicing of the vent system.

[_ 440012020 07

HorizontalRight-SideVent

Single Pressure Switch Detail

ReliefTubeBlack Rubber

3/16"ID

FlexibleTubingConnector

3/16"OD (LoosePartsBag)_/

ReliefTubeExtension_f

Black Rubber3/16"ID Cut to Fit (LooseParts Bag)

Elbow Tube BlackRubber 1/2"ID& Clamps

(LooseParts

Plastic Cap Yellow or black

VentDrain &Clamps

Level or Sloped towards Tee

Coupling & Clamps (Optional)

Field

/ SuppliedTee

TeeTrapWhitePVC

_/(loose partsbag)

BarbedCoupling 1/2"OD (LooseParts Bag)

Some Models ONLY

Alternate Orienation

Dual Pressure Switch

Drain Tube Corrugated

Cut at straight section

Leaveroomfor clamp _Cut Here

Horizontal Right Side Vent (SeeFigure17)

Disconnect Drain Tee if installed (*9MPD models only) Disconnect the hoses from the Trap assembly, and remove Trap

and Trap mounting bracket from the blower compartment. Using cover plate and gasket provided in the loose parts bag, cover the hole from the burner compartment to the blower compartment and

secure with screws.

Mount the Trap externally to the bottom side of the unit using the 2 screws provided in the location shown.

Cut the corrugated tube as shown in the illustration above. Con- nect the corrugated hose from the transition to the Trap. Secure

connections with clamps. Connect the black 1/2" ID Drain Tube from the Vent Drain to the

Trap. If an extension is required, use the 1/2" OD barbed coupling and the black 1/2" ID Drain Tube in the loose parts bag. Cut tube

to length. Secure connections with clamps. Connect the 3/16" ID relief tube to the middle port on the Trap. If

an extension is required, use the clear /16' OU splice connector

3 ,

DrainTubeBlackRubber

l/z" ID& Clamps

25-24-50

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

Cut an appropriate length of 2" PVC pipe, fittings and extension pipe long enough to exit the cabinet and connect the vent drain to

either:

• A 2" PVC coupling fastened onto the Drain Tee (*9MPT or V models)

Install Tee Trap into bottom section of Tee. Important: The pipe to the Tee Trap must be level or sloping to-

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

shown in Figure 18. Note: It is recommended that all PVC piping and fitting connec-

tions be fit up and inspected before final cementing. Both the ex- ternal Trap and the external Tee Trap must be primed before

operation. Verify all condensate drain connections are securely clamped. A coupling and clamps (in loose part bag) may be

installed as shown for future servicing of the vent system.

44001 2020 07 1_

Connecting Tee Trap to Condensate

Trap and Main Drain Line

Important: Prime both traps with water before operation. Failure to prime the traps may result in discharge of flue gases from the condensate drain line and open tee for a period of time, and may result in temporary lockout of the furnace upon start up. Main drain line construction is left to the discretion of the installer. It may be made of either ridged pipe or flexible tube. Tube ID should NOT be less than 1/2,,.

Connecting Vent and Combustion Air Piping

Open Tee

Evaporator

Coil

Drain Line

(Optm_

Main Drain Line

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.

The Tee Trap should be installed as close to the side or top of the furnace as practical. Minimize the distance between

the inducer and the Tee Trap as much as possible.

An open tee is to be used at the Tee Trap discharge. The top end of the tee should be open to the atmosphere to elimi-

nate potential air lock problems.

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

Condensate drain lines from a cooling coil may be con- nected downstream of the connection point of the Tee Trap and Furnace Condensate Trap.

Condensate

Trap

25-24-41N

CARBON MONOXIDE POISONING HAZARD I

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

Cement or mechanically seal all joints, fittings, etc. I

to prevent leakage of flue gases. I

Refer to Figure 9 through Figure 17 that corresponds to the installation position of the furnace for the application.

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

Combustion Air Pipe Connection (Dual Certified or Direct Vent)

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

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

For downflow installation, the air intake coupling and gasket must

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

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

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

sealant to provide for future serviceability.

Vent Pipe Connection

Install the vent pipe grommet to the furnace panel. Locate the grommet in the furnace panel at a location directly away from the vent fitting on the combustion blower. The grommet snaps into the 3" hole plug from the furnace panel. NOTE: Depending on the installation position, the vent pipe grommet will be installed to the top panel or to the alternate location on the side panels. If needed, remove the 3" hole plug from the furnace panel and relocate to the open hole in the furnace panel. (See Figure 9 or Figure 18)

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 19) Some installations require the vent fitting to be installed with

a 5° to 10 ° downward slope. (See Figure 9 thru Figure 18)

I_ 44001 202007

Proper Sealing Procedure for

Combustion Blower

RubberCoupling j _, VentPipe &Clamps-___ _(Top PanelExit)

D_.o _ NOTE: The 90 ° elbow is approved .r.pe for use inside the furnace ONLY.

90° Elbow

& Clamps

Combustion

Pipe(Side Panel Exit)

SIDE VIEW

Tee

NOTE:Built-in channelwill beangled5° to 10° also.

ate downward

25-24-14a

Joining Pipe and Fittings

FIRE HAZARD Failure to do so could result in personal injury

and/or property damage. Observe all cautions and warnings printed on

material containers

Provide adequate ventilation and do NOT assemble near heat source or open flame. Do NOT smoke

while using solvent cements and avoid contact with

skin or eyes.

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

NOTE: All PVC, CPVC, ABS, and Cellular Core pipe fittings, sol- vent cement, primers and procedures MUST conform to American National Standard Institute and American Society for Testing and

Materials (ANSI/ASTM) standards.

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

D2665, F-891, F-628

• PVC Primer and 5olvent Cement - ASTM D2564

• Procedure for Cementing Joints - Ref ASTM D2855

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

CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in personal property damage, 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., use only low temperature

type solvent cement. Poor joints may lead to

disconnected or leaking vent pipe joints allowing

carbon monoxide to enter the living space.

1. Cut pipe end square, remove ragged edges and burrs. Chamfer end of pipe, then clean fitting, socket and pipe joint of all dirt, grease, or moisture.

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

er brush size is one inch.

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

3. Apply a thin coat of cement evenly in the socket. Quickly ap- ply a heavy coat of cement to the pipe end and insert pipe

into fittings with a slight twisting movement until it bottoms out.

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

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

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

temperature and humidity.

Connecting Vent Pipes and Termination

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

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

CARBON MONOXIDE POISONING HAZARD. Failure to properly vent this furnace could result

in death, personal injury and/or property damage. Maintain a minimum of 36" between combustion

air inlet and clothes dryer vent. Terminate the combustion air intake as far as possible from any air conditioner, heat pump, swimming pool, swimming pool pumping, chlorinator or filtration

unit.

Install all couplings, nipples and elbows using proper proce- dures for Joining Pipe and Fittings and maintain spacing between vent and combustion air piping as indicated in Figure 20 through Figure 27.

44001 2020 07 [_

SidewallTermination12"orMore

AboveSnowLevelorGradeLevel

8"* "18"Minimumfor coldclimates

MIN.

GRADE LEVEL 25-00-05F

SNOW LEVEL

(substainedbelow0° F)

Sidewall Termination with Exterior Risers to Get Above Snow Level or Grade

:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::Level

MIN. _' .._ / *18" Minimum for cold climates

20' / _T'z (substainedbelow0° F)

MAX_ _-Jj>

Horizontal Termination

Cut two holes• 21/2" for 2" pipe, 3" for 21/2" pipe, or 31/2" for 3" pipe. Do NOT make the holes oversized, or it will be nec- essary to add a sheet metal or plywood plate on the outside

with the correct size hole in it.

2. Check hole sizes by making sure it is smaller than the cou- plings or elbows that will be installed on the outside• The couplings or elbows MUST prevent the pipe from being pushed back through the wall.

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

4. Install the couplings, nipple and termination elbows as shown and maintain spacing between vent and combustion air piping as indicated in Figure 20 and Figure 21.

A metal shield is recommended 18" x 18" min. or 18" min. diameter around the vent termination at the exterior wall 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 21.

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 22 shows the proper installation and clearances for vertical vent termination• The vertical roof termination

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

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

or other protrusion•

2. If the vent system is installed in an existing chimney make sure clearances shown in Figure 22 are maintained• Hori-

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

_ 25 O0 04F

]RooftopTermination

A = 12" Above roof or snow accumulation level

B = 8" Min,, 20' Maximum, except in areas with extreme

cold temperatures (sustained below 0°F), the 18" Min,

Vent Termination Shielding

Under certain wind conditions some building materials may be af- fected by flue products expelled in close proximity to unprotected surfaces• Sealing or shielding of the exposed surfaces with a cor- rosion resistant material (such as aluminum sheeting) may be re- quired to prevent staining or deterioration• The protective material should be attached and sealed (if necessary) to the building 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 23, Figure 24, Figure 25, Figure 26, Figure 27 and Figure 28, but the next vent termination must be at least 36" away from first 2 ter- minations. It is important that vent terminations be made as shown to avoid recirculation of flue gases•

[_ 44001 2020 07

ii_i _ I cOncentric Vent andcOmbustiOn-AirROOfTermination

"A"

12"Min. Gradeor

SnowLevel

Combustion Air

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

Concentric Vent and Combustion-Air Sidewall Termination

Termination with Exterior Risers

1 Sidewall Inlet Vent and Exhaust-Air

18" Min. for Cold Climates (SustainedBelow0° F)

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

Rooftop Inlet Vent and Exhaust-Air Termination

18" Min.for Cold Climates (Sustained Below 0° F)

8" Min. 20' Max.

8"Min.

12" Min. Gradeor

Snow Level

Exhaust

25-22-02d

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

_iii 1 sidewalllnletventandExhaust-AirTermination

Exhaust

Inlet

_> 18" Min.for

Cold Climates

12"Min. Gradeor _ (Sustained Below 0° F)

Min.

12"Min.

Level

Recommended Alternate Installation for Sustained Cold Weather

Exhaust

25-22-43

(-O° F & below)

A ...........

EXHAUST 12"MIN.

_ ____......_ ORSnowLevel 25-23-73

FRONT VIEW

_s _J

| OVERHANG

12" _IlN.Ground Level

SIDE VIEW

12"MIN.

_n "A" is touchin,q or 2" maximum separation.

44001 2020 07

Same Joist

Space

5. Gas Supply and Piping

CARBON MONOXIDE POISONING, FIRE AND EXPLOSION HAZARD.

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

Models designated for Natural Gas are to be used

with Natural Gas ONLY, unless properly converted to

use with LP gas.

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

SupplyPressure

FIRE HAZARD. Failure to properly set input pressure could result in

death, personal injury and/or property damage. Do NOT set input rating above that shown on rating

plate.

1. Supplypressurecanbecheckedusingthel/8" NPTporton the supply side of the gas valve.

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

3. Do NOT allow minimum gas supply pressure to vary down- ward. Doing so will decrease input to furnace. Refer to Table 6or Table 7 for normal gas supply and manifold pres-

sures.

GasSupplyPressure

FIRE HAZARD Failure to properly set input pressure could result in

death, personal injury and/or property damage. Do NOT set input rating above that shown on rating

plate.

Gas supply pressure should be within minimum and maximum val- ues listed on rating plate. Pressures are usually set by gas suppli-

ers.

Manifold Gas Pressure Adjustment (Hi&LoFire)

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

ELECTRICAL SHOCK HAZARD. Failure to do so could result in death, personal

injury and/or property damage.

Turn OFF power to furnace before changing speed taps.

1. Remove the burner compartment door.

2. Reture fourth (4th) DIP switch to previous setting.

3. Replace the burner compartment door.

General Derating Rules

1. These furnaces may be used at full input rating when installed at altitudes up to 2,000'. When installed above 2,000', the input must be decreased 2% (natural) or 4% (LP) for each 1000' above sea level. See Table 5 for required high altitude input rate.

High Altitude Input Rate =

Nameplate Sea Level Input Rate x (Multiplier)

Elevation

2001'-3000' 3001'-4000' 4001'-5000' 5001'-6000'

6001'-7000' 7001'-8000'

* Based on mid-range of elevation.

2. For operation with natural gas at altitudes above 2,000', ori- rice change and/or manifold pressure adjustment may be required for the gas supplied. First consult your local gas supplier, then refer to Table 6 for required pressure change and/or orifice change for high altitudes.

3. For operation with LP gas, gas orifices MUST be changed and manifold pressure MUST be maintainedas per Table 7. Orifices can be ordered through your distributor. (See Figure 29)

High Altitude Multiplier

Natural Gas

0.95

0.93

0.91

0.89

0.87

0.85

LP Gas

0.90

0.86

0.82

0.78

0.74

0.70

High Altitude Air Pressure Switch

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

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

[_ 44001 2020 07

MANIFOLDPRESSUREAND ORIFICESIZE FORHIGHALTITUDEAPPLICATIONS

iiii;;i;i;i: _________i¸ ii _f;;;i__i

NATURAL GAS MANIFOLD PRESSURE (" w.c.)

HEATING 0 to 2000 2001 to 3000 3001 to 4000 4001 to 5000 5001 to 6000 6001 to 7000 7001 to 8000 VALUEat

ALTITUDE No. No. No. No. No. No. No.

BTU/CU.FT. Hi Lo Hi Lo Hi Lo Hi Lo Hi Lo Hi Lo Hi Lo

700 41 3.7 1.8 725 41 3.7 1.8 41 3.4 1.7

750 41 3.5 1.7 42 3,6 1,7 775 41 3.6 1.7 42 3.6 1.8 42 3.3 1.6 800 41 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 41 3.4 1.7 42 3.5 1.7 42 3.2 1.6 42 2,9 1.4 850 41 3.5 1.7 42 3.6 1,7 42 3,3 1,6 42 3.0 1.5 42 2.8 1,4 875 41 3.6 1.7 42 3.6 1.8 42 3.4 1.6 42 3.1 1.5 42 2.8 1.4 42 2.6 1.3

900 42 3,7 1.8 42 3.4 1.7 42 3.2 1,6 42 2.9 1,4 42 2.7 1.3 42 2.5 1,2 925 41 3.7 1.8 42 3,5 1.7 42 3.3 1.6 42 3.0 1,5 42 2,8 1,4 42 2.5 1.2 42 2,3 1,1

950 41 3.5 1.7 42 3.3 1.6 42 3.1 1.5 42 2.9 1.4 42 2,6 1.3 42 2.4 1.2 43 2.7 1.3

975 42 3,7 1,8 42 3,2 1.6 42 2.9 1.4 42 2.7 1,3 42 2,5 1,2 42 2.3 1.1 43 2.6 1.3 1000 42 3.5 1.7 42 3.0 1.5 42 2.8 1.4 42 2.6 1.3 42 2.4 1.2 43 2.7 1.3 43 2.4 1.2 1050 42 3,2 1,6 42 2.7 1.3 42 2.5 1.2 42 2.3 1,1 43 2.6 1.3

1100 42 2.9 1.4 42 2.5 1.2 42 2.3 1.1 43 2.6 1.3 ; =

NOTE: Natural gas data is based on 0.60 specific gravity. For fuels with different specific gravity consult the National Fuel Gas Code ANSI Z223.1-2002/NFPA 54-2002 or National Standard of Canada, Natural Gas and Propane Installation Code CSA B149.1-00.

Orifice Mnfld Pressure Orifice Mnfld Pressure Orifice Mnfld Pressure Orifice Mnfld Pressure Orifice Mnfld Pressure Orifice Mnfld Pressure Orifice Mnfld Pressure

MEAN ELEVATION FEET ABOVE SEA LEVEL

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

MEAN ELEVATION FEET ABOVE SEA LEVEL

HEATING VALUE

at ALTITUDE

BTU/CU. FT.

2500

Orifice Size

NOTE: Propane data is based on 1.53 specific gravity. Z223.1-2002/NFPA 54-2002 or National Standard of Canada, Natural Gas and Propane Installation Code CSA B149.1-00.

NOTE: The derating of these furnaces at 2% (Natural Gas) and 4. Tighten orifices so it is seated and gas tight. (See 4% (LP Gas) has been tested and design-certified by CSA. Figure 29)

0 to 2000 2001 to 3000

Hi Lo Hi Lo

10.0 4.9 10.0 4.9 #54 #54

3001 to 3999 4001 to 5000 5001 to 6000 6001 to 7000

Hi Lo Hi Lo Hi Lo Hi Lo Hi Lo

9.0 4.4 10.0 4.9 9.4 4.6 8.5 4.2 10 4.9 #54 #55 #55 #55 _5

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

7001 to 8000

Changing Orifices for High Altitude

Changing Orifices

ELECTRICAL SHOCK, FIRE OR EXPLOSION HAZARD.

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

Turn OFF electric power (at disconnect) and gas supply (at manual valve in gas line) when installing orifices. Installation of orifices requires a qualified

service technician.

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.

/ 3/ rf

'8 to 1 '16

5. Reinstallmanifold. EnsureburnersdoNOTbindonnewori- rices.

Measure from face of ori-

fice to the back side of the

manifold.

44001 2020 07 [_1

¸¸'¸¸¸¸¸T pica,OasPiping,orup,,ow

........ , ......... Gas Pipe Grommet

(Sing,eP,pe \

dripleg, union, and furnace. _ Manualshut-off \ _ / _,_ __

3" pipe nipple. _ _ _¢_

Use elbows and 3" pipe nipple to connect ___"--_'''___ _ _ _ _

valve to piping when using right side gas_ _z_ _ _ _-------"--_J/ pipe entry. _ /_""_/_ % _=_ ._'_

LP Low pressure switch. "-_ "--._'qL._/\ -- _(_ _ / _, \

_al on some models. ( __ ) i_ _] _ _

_]__/ \_ _ _On some

* Union may be installed inside the cabinet when necessary because of clearances. _ _ 2s-24-22-2

valve_ _ \ // _ _

Natural Gas Input Rating Check

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

1. Turn OFF gas supply to all appliances and start furnace. Use jumper wire on R to Wl and W2 for Hi fire.

2. Time how many seconds it takes 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 W2 for low fire.

iiiiiiiiiiiiiiii!ii:;iiiiiiiiiii;i¸iiiiiii;ii(i(i(i(i(iii!!!; i!!!i! i!!!iii

Typical Gas Piping for Downflow

Use elbows and 3" pipe nipple to connect valve to piping when using left side gas pipe entr_

P Low pressure switch. _ 7

NOTE: Fourth (4th) dip switch must be in "ON" position. (See Furnace Wiring Diagram). Return fourth (4th) dip switch to previous setting after check.

Example

No. of Time Per

Natural Gas Seconds Cubic Foot in BTU Per BTU Content Per Hour Seconds Hour

1,000 3,600 48 75,000

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

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

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

Optional LP conversion.

Ma_;Ualshut" °_, t _

Drip Leg and Union, Union should be outside the cabinet.

Manual shut-off valve MUST be upstream of dripleg, union, / and furnace. / _ /

Gas Pipe Grommet/

*Union may be installed inside the cabinet when necessary (Single Pipe)

because of clearances .... 4

[_1 44001 2020 07

GasPipingRequirements

1. Properly size gas pipe to handle combined appliance load or run gas pipe directly from gas meter or LP gas regulator. Refer to NFGC and ANSI Z223.1 for proper gas pipe size.

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

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

NOTE: Refer to Figure 30 or Figure 31 for the general layout at the furnace. The rules listed apply to natural and LP gas pipe

installations. NOTE: On the Dual Certified or Direct Vent models, install the gas

pipe grommet to the furnace side panel with the gas pipe entry. If needed, remove the 2" hole plug and relocate to the open hole in the furnace side panel.

FIRE OR EXPLOSION HAZARD

Failure to properly install metal gas connector could result in death, bodily injury and/or property

damage.

A flexible corrugated metal gas connector must be properly installed, shall not extend through the side

of the furnace,and shall not be used inside the furnace.

Black iron pipe shall be installed at the furnace gas control valve and extend a minimum of 2" outside

furnace casing.

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

NOTE: If local codes allow the use of a flexible gas connector, al- ways use a new listed connector. Do not use a connector which has previously serviced another gas appliance.

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

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

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

Additional LP Connection Requirements

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

FIRE OR EXPLOSION HAZARD A natural gas or LPgas leak ignited by an open flame

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

Natural gas is lighter than air and will rise. Liquified petroleum (LP) is heavier than air and will settle and

remain in low areas and open depressions. Thoroughly ventilate area and dissipate gas. Do

NOT use a match or open flame to test for leaks, or attempt to start up furnace before thoroughly

ventilating area.

Final Check

1. The furnace and the gas valve must be disconnected from the gas supply piping system during any pressure testing of that

system at test pressures in excess of 1/2" PSIG. Close the manual shut-off valve before testing at such pressures.

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

valve.

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

4. Correct even the smallest leak at once.

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

1 ,

6. Electrical Wiring

ELECTRICALSHOCK HAZARD. Failure to turn off power could result in death,

personal injury and/or property damage. 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.

Power SupplyWiring

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

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

Field wiring connections must be made inside the furnace connec- tion box. A suitable strain relief should be used at the point the wires exit the furnace casing.

Copper conductors shall be used. Line voltage wires should conform to temperature limitation of 63 ° F (35 ° C) rise and be sized for the unit maximum amps stated on the rating plate. Add the full

44001 2020 07

load amps for potential field-installed accessories such as elec- tronic air cleaners and humidifiers that would receive power from

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

0.8 amps combined for EAC and Hum. Consult N EC or local codes for proper wire and circuit sizing.

J- Box Relocation

The j-box is installed on left side of casing. An alternate j-box location on right side can be used.

1. Remove bag containing two hole plugs and two self tapping screws from loose parts bag in blower compartment.

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

3. Move large hole plug from right to left j-box location.

4. Move j-box to alternate location and attach using two self tapping screws from bag.

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

Thermostat

The 2-stage furnace control will operate with either a single stage or a two stage heating thermostat and will provide 2-stage heating

operation. For single stage thermostat installations, the R and W

wiresfromthethermostatconnecttothe R and Wl connections on

the furnace control. Note: The fourth (4th) DIP switch must be in the off position, failure to change DIP switch will result in Lo Fire ONLY operation. (See furnace wiring digram) See "Furnace Wir- ingDiagrard' for switch settings. Failure to set DIP switch will result in Lo fire operation ON LY with single stage thermostat. During op- eration, the furnace will operate on low fire for 12 minuteslf the heat request exists for more than 12 minutes. If the heat request exists for more that 12 minutes, the furnace will automatically shift to the

high fire 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. During operation, the furnace will shift from low

fire to high fire as requested by the thermostat. The thermostat heat anticipators should be adjusted to a .10 setting for both types

of thermostats.

Low voltage connections to furnace must be made on terminal board to fan control.

Optional Equipment

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

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

manufacturer's instructions. The wiring MUST have a minimum temperature rating of 105 ° C. codes or, in the absence of local codes, the applicable national codes. Install wiring in accordance

with manufacturer's instructions.

Humidifier/Electronic Air Cleaner

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

REDUCED FURNACELIFE HAZARD

E,ectrica,Connections

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

115V.60 Hz.

25-23-42a

NOTE: 115 VAC/6OHz/single-phase Operating voltage range*: 127 max, 104 min.

* Permissible limits of voltage at which unit will operate satisfactorily

Failure to follow caution instructions may result in reduced furnace life.

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

terminal combined.

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

Fan Control

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

Dehumidification - Variable Speed ONLY (*9MPV)

The fan control is wired for 24 VAC normally-open (N/O) dehumi- distat connection. Connect dehumidistat to the Y terminal and the

1/4" male quick connect Y2 terminal on the fan control (See Figure 33 and "Furnace Wiring Diagram",) A 20% reduction of

cooling airflow will occur when the Y2 dehumidistat terminal is en- ergized by being connected to Y during a call for cooling from the

thermostat.

Control Center Fuse

The 24V circuit contains a 5-amp, automotive-type fuse located on fan timer board. (See Figure 33) Any electrical shorts of 24V

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

Fan Timer Connections

Dip Switch

/ See "Wiring Diagrard'

for switch settings

25-22-44a

[_ 44001 2020 07

7. Ductwork and Filter

CARBON MONOXIDE POISONING HAZARD.

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

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

furnace casing.

Installation

NOTE: Design and install air distribution system to comply with Air

Conditioning Contractors of America manuals and/or NFPA pam- phlets 90A and 90B or other approved methods that conform to lo- cal codes and good trade practices.

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

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

For furnaces installed without a cooling coil it is recom- mended that the outlet duct be provided with a removable

access panel. This panel should be accessible when the furnace is installed so the exterior of the heat exchanger can

be viewed for inspections. The access panel MUST be sealed to prevent leaks.

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

the furnace life.

NOTE: Dampers (field supplied) can be either automatic or manu- al. Manually operated dampers MUST be equipped with a means to prevent furnace or air conditioning operation unless da roper is in the full heat or cool position.

CARBON MONOXIDE POISONING HAZARD.

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

Cool air passing over heat exchanger can cause condensate to form resulting in heat exchanger

failure.

Connections

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

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

the furnace. When the furnace is located in an area near or adja- cent to the living area, the system should be carefully designed

with returns to minimize noise transmission through the return grille. Any blower moving a high volume of air will produce audible

noise which could be objectionable to when the unit is located very close to living areas. It is advisable to route the return air ducts un- der the floor or through the attic.

1. For side connections using a 16" x 25" filter, cut out the em- bossed area shown in Figure 34. This will provide a 141/2 ', x 221/2 ', approximate opening.

Side Return Air Cutout

A = 14112" Height of Cutout for 16"x 25" Filter B = 22112" Width of Cutout for 16" x 25" Filter

Embossed Area

on Side of Furnace

Bottom

Furnace

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

2. Bottom returns can be made by removing the knockout pan- el in the furnace base. Do NOT remove knock-out except for

a bottom return.

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

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

5. If air return grille is located close to the fan inlet, install at least one, 90 ° air turn between fan and inlet grille to reduce

noise.

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

Sizing

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

Insulation

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

2. Insulate ductwork in indoor unconditioned areas with a mini-

mum of 1" insulation with indoor type vapor barrier.

Filters

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

from dealer. Use either filter type:

• Washable, high velocity filters are based on a maximum

air flow rating of 600 FPM.

• Disposable, Iowvelocity filters are based on a maximum

air flow of 300 FPM when used with filter grille.

NOTE: Disposable, low velocity filters may be replaced with wash- able, high velocity filter providing they meet the minimum size

areas. Washable, high velocity filters can be replaced ONLY with same type and size.

44001 2020 07 [_

Side Mounted Filter Rack

25-20-90

Filter Installation using Filter Rack

When installing or removing a bottom mounted filter, slide the two side filter clips to the back of the furnace BEFORE installing or re- moving. This will allow the filter to clear the front raised edge of the furnace. Insert filter into side clips first and push filter back until it is fully engaged into back clip. When filter is in place, slide clips back into place midway on filter as shown in Figure 36.

Bottom Mounted Filter Rack

CAUTION

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

conditioning is added.

Addition Of Air Conditioning

When a refrigeration coil is used in conjunction with this unit, it must be installed on the discharge side of the unit to avoid con- densation on the heat exchanger. The coil installation instructions must be consulted for proper coil location and installation proce- dures. With a parallel flow arrangement, dampers must be installed to prevent chilled air from entering the furnace. If ma nual- ly operated dampers are used, they must be equipped with a means to prevent operation of either unit unless the damper is in full heat or full cool position.

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

used for the condensate drain line.

Downflow Furnace Installation

Non- Combustible Floor Installation

Fabricate a plenum to the dimensions given in Figure 1, for the fur- nace outlet. Plenum should be flanged, approximately 3/4" for sup-

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

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

1. Position plenum through the floor and set the furnace over the opening in the floor. If necessary, grout around the base

to seal air leaks between the base and the floor.

Combustible Floor Installation

25-24-18

Slide filter clips towards back before removing

Refer to Figure 37 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 37, available from your distributor.

Standoff Filter Rack

Using Optional

Standoff Filter

Rack

25-21-45a

FIRE HAZARD. Failure to install unit on noncombustible subbase

could result in death, personal injury and/or

property damage. Place furnace on noncombustible subbase on

downflow applications, unless installing on non-

combustible flooring.

Subbase for Combustible Floor

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

Note: When using the subbase for combustible floors, the dis- charge air duct flanges on the furnace MUST be broken down to provide proper fit up to the subbase. Use duct pliers to bend the duct flanges flat onto the furnace casing. DO NOT bend the duct flanges inward (toward the heat exchangers) as air flow restric- tions may occur.

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

1. CuttheopeningintheflooraccordingtoTable 8.Theholein the floor must be cut to the dimensions listed in Table 8

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

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

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

[_ 44001 2020 07

Subbases for Combustible Floors Dimensions

Subbase for Combustible

Floors Part Number

Subbase for Combustible

Floor Dimensions Opening In Floor

H* J* K_* L M N

Furnace Subbase

NAHH001SB NAHH002SB

NAHH003SB NAHH010SB

1511/16 283/4 149/16 16 161/4 146/8

195/16 283/4 183/16 16 161/4 181/4 225/16 283/4 2113/16 16 161/4 21 1/8

2411/16 283/4 23u/16 16 161/4 235/8

Subbase for Coil Cabinets

NAHH004SB NAHH005SB NAHH006SB

NAHH009SB

15]1/16 20u/16 14u/16 161/4 16]/4 145/8

195/16 209/16 183/16 161/4 161/4 181/4

23 209/16 2113/16 161/4 161/4 21//8

24s/4 20u/16 23u/16 16]/16 16]/4 235/8

Outside Dimension

_* Base Spacer Side To Side

Set the base over the opening in the floor, centering it over the opening. Fasten the base to the floor with screws or nails. See Figure 38, Figure 39 and Figure 40.

Furnace Subbase

A = 4 114" Minimum clearance from back of hole to wall or other obstruction.

Opening In Base

For Plenum

P R

15 131/2 15 17118 15 193/4

15 221/2

15 13]/2 15 171/8

15 193/4 15 22]/2

Coil Cabinet Subbase

_bustible

Floor Base

Typical Plenum

Dimensions

S T

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

15 221/2

15 131/2 15 171/8

15 193/4 15 221/2

25-20-46

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

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

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

25-20-46b

Setting the Subbase

Installation of Combustible Floor Base

Plenum

25-20-46a

44001 202007 [_

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 41.

8. Checks and Adjustments

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

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

Turn OFF gas at shut off before connecting manometer.

Startup

NOTE: Refer to the start-up procedures in the "User's Information Manual' or to the "Operating Instructions Label' on the furnace.

Condensate Line Raised by Base

25-20-52

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

clockwise to increase.

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

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

Adjust Pilot Burner

The furnace has a pilot flame to light the main burner. The flame should surround /8 to /2' of the flame sensor. See Figure 42. To

adjust, remove cap from pilot adjusting screw on gas valve. Turn screw counterclockwise to increase or clockwise to decrease

flame as required. Replace adjusting screw cap.

3 1

Pilot Burner

FIRE OR EXPLOSION HAZARD. Failure to correct hazard could result in death,

personal injury, and/or property damage. If any sparks, odors or unusual noises occur,

immediately shut OFF power to furnace. Check for

wiring errors or obstruction to blower.

GasSupplyPressure

Gas supply pressure should be within minimum and maximum val- ues listed on rating plate. Pressures are usually set by gas suppli-

ers.

Manifold Gas Pressure Adjustment

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

1. Remove the burner compartment door.

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

range.

Proper Flame

Flame Sensor

j Hot Surface

Igniter

10-11-65

Main Burner Flame Check

Allow the furnace to run approximately 10 minutes then inspect the main burner and pilot flames. See Figure 43.

Check for the following (Figure 43):

• Stable and blue flames. Dust may cause orange tips or wisps of yellow, but flames MUST NOT have solid, yellow tips.

• Flames extending directly from burner into heat ex- changer.

• Flames do NOT touch sides of heat exchanger.

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

[_ 440012020 07

Main Burner

Face

10-10-78

Temperature Rise Check

The blower speed MUST be set to give the correct air temperature rise through the furnace as marked on the rating plate for both high fire and low fire operation. Temperature rise is the difference be- tween 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.

Operate furnace on high fire for 10 minutes with all the regis- ters and duct dampers open by using a jumper wire on R to

Wl and W2 thermostat connections on the fan board. Note: The fourth (4th) DIP switch should be in the on posi-

tion. (See furnace wiring digram)

3. Take readings and compare with range specified on rating plate.

If the 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 fire for 10 minutes by using a jumper wire on the R to Wl ther-

mostat connections on the fan board.

6. Remove the jumper wire after the adjustments are com- plete. Return fourth (4th) to previous setting.

Changing Blower Speed (*9MPTModels)

REDUCED FURNACE LIFE HAZARD Failure to properly set the air temperature rise may

result in reduced furnace life. Use ONLY the following blower motor speed taps for

setting air temperature rise.

Blower Motor Model Sizes Speed Taps Heat High Heat Low

Hi (BLK) All None Med-Hi (O) All All Med Lo (BL All except lOOJ All

Lo (R) None 050F12 and 125L20

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 electronic fan control as well as location of unused blower motor speed leads. Use the chart (Table 9) to determine the blower motor speed settings.

Blower Speed Chart

Wire Color

Black

Orange*

Blue

Red

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 "Heat" or "coor' terminal and re-

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

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

If the same speed must be used for both heating and cool- ing, remove the undesired motor speed lead from the "Heat" or "Cool" terminal and connect that lead to the open

terminal at "Unused Motor Lead" location. Attach ajumper between the "Heat" and "Cool" terminals and the remaining

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

tape off the terminal of the motor speed lead removed from the "Heat" or "Cool" terminal with electrical tape since an open terminal will not be available at the "Unused Motor

Lead" location.

ELECTRICAL SHOCK HAZARD. Failure to do so could result in death and/or

personal injury. Turn OFF power to furnace before changing

speed taps.

NOTE: The speed taps that the manufacture sets from the factory for this product are based on a nominal 400 CFM per ton cooling and the basic mid range on the temperature rise for heating.

Since the manufacturer cannot establish the static pressure that will be applied to the unit, it is the responsibility of the in- staller dealer/contractor to select the proper speed taps for the application when the unit is installed.

44001 2020 07

Continuous Fan Operation

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

and has a lower contact rating (8 amps) than the heat and cool taps. When the low speed blower lead is connected to this termi-

nal, this will provide low speed blower operation whenever the oth- er two speeds (Heat or Cool) are not energized.

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

tion.

Separate speed selections for Heat, Cool, and Continuous Fan

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

Heating and Continuous Blower Speed the Same

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

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

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

Changing Blower Speed C9MPVModels)

ELECTRICAL SHOCK HAZARD. Failure to do so could result in personal injury andlor

property damage, Turn OFF power to furnace before changing speed

taps.

Blower Motor Control

NOTE: The blower speeds that the manufacturer sets from the factory for this product are based on a nominal 400 CFM per ton cooling and the mid range on the temperature rise for heating.

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 I 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 switch settings that are located on the motor control (see Figure 44). Switches #1 and #2 ad-

just the continuous blower speeds. Switches #3, #4 and #5

adjust the heating speeds. Switches #6, #7 and #8 adjust the cooling speed. See the "Technical Support Manual"for the switch settings for the desired airflow rates for the instal-

lation.

9. Furnace Maintenance

FIRE, EXPLOSION, OR CARBON MONOXIDE HAZARDS

Failure to have the furnace inspected and maintained could result in fire, explosion, or carbon

monoxide poisoning. It is recommended that the furnace be inspected

and serviced on an annual basis (before the heating season) by a qualified service technician.

/!"""!°,,,, o00oo

1_ 8 INPUT

DIP CONNECTIONS

OFF O THERMOSTAT

SWITCHES

ELECTRICAL SHOCK, FIRE OR EXPLOSION HAZARD

Failure to follow safety warnings exactly could result in dangerous operation, serious injury, death or property damage.

Improper servicing could result in dangerous operation, serious injury, death or property

damage.

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

SIGNALOR

25-23-I0

• 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.

010

"EXAMPLE Cooling Airflows Switches

6,7&8: 000 3.5 Ton

001 3.0 Ton 010 2.5 Ton 011 2.0 Ton

_See "Technical Support Manual" for correct airflow

rates,

44001 202007

10. Sequence of Operation & Diagnostics

The following is the normal operating sequence for the 2-stage control system.

Cooling (Y) Request:

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

• Cool motor speed energized after 5 second Cool Fan On Delay time. Y & G signals removed from EFT.

• Cool motor speed de-energized after 90 second Cool Fan Off Delay time. Cooling (Y) and dehumidification (Y2) requests:

• 24 VAC signals applied to Y, Y2 & G terminals of EFT (electronic fan timer) control.

• Same operation as the cooling (Y) request, except the cooling speed is reduced 20% to compensate for high humidity conditions during cooling operation. The cooling speed returns to the normal setting after the Y2 signal is removed.

Circulating Fan (G) Request:

24 VAC signals applied to G terminals of EFT control.

• Low motor speed energized without delay.

G signal removed from EFT.

• Low motor speed de-energized without delay,

NOTE1) Furnaces with DC blower motors run a low circulating fan speed in response to G request. NOTE2) Furnaces with PSC blower motors de-energize the Low Heat fan speed during the heat exchanger warm-up period on a call

for Heating that occurs during a G request.

NOTE3) Heating or Cooling requests received during a Fan request cause the fan speed to change to the appropriate heat or cool speed after the selected Fan On Delay time expires. The fan returns to circulating speed after the selected Fan Off Delay time expires following loss of the Heating or Cooling request.

Heating (Wl) Request (single stage thermostat operation, 4th DIP switch must be in off position) (see furnace

wiring diagram):

24 VAC signals applied to W1 terminal of EFT control.

• Inducer motor turns on at high speed.

• The high fire solenoid energizes.

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

• After the pilot lights, the main burners energize and light (burners now at high fire rate).

• Timed from the opening of the main gas valve, the control will delay the selected Heat Fan On Delay time before switching the inducer to low speed, de-energizing the high fire solenoid and the fan switches to Low Heat speed.

• Timed from initial application of the Heating request, if the Wl request is still present after the selected Low Fire Delay time expires (12 minutes), the inducer switches to high speed, the high fire solenoid energizes and the fan switches to High Heat

speed.

W1 signal removed from EFT.

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

• The inducer runs at its present speed for a 5 second postpurge period.

• The fan switches to (or stays at) Low Heat speed.

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

NOTE4) If a new Heating request arrives while the control is waiting in the Heat Fan Off Delay time, the fan speed switches to High Heat until the Heat Fan Off Delay expires or the Heat Fan On Delay expires for the new Heating request.

Heating Request (two stage thermostat operation, 4th DIP switch must be in on position) (see furnace wiring diagram):

24 VAC signals applied to W1 terminal of EFT control.

• Same response as single stage thermostat operation described above except the control will not go to high fire, High Heat fan speed unless a W2 signal is applied.

24 VAC signals applied to W1 and W2 terminals of EFT control.

• Same light-off routine as described for the signal stage thermostat operation except that at the end of the selected Heat Fan On Delay, the inducer remains on high fire, the high fire solenoid remains energized and the High Heat fan speed energizes.

NOTE5) The EFT control responds without delay to the presence or loss of W2 (with Wl constant). W1 & W2 results in high inducer, high fire and High Heat fan speed. W1 only results in low inducer, low fire and Low Heat fan speed.

44001 2020 07 [_

Heating Request with Gas Supply Line Shut Off:

24 VAC signals applied to Wl terminal of EFT control.

• Inducer motor turns on at high speed.

• The high fire solenoid energizes.

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

• The ignitor glows red-hot for 30 seconds, then turns off.

• The igniter stays off for 25 seconds, then begins to warm-up again.

• The igniter glows red-hot for 30 seconds, then turns off.

• The pilot valve closes 3 seconds after the igniter de-energizes.

• The inducer de-energizes 5 seconds after the pilot valve closes.

• The SmartValve proceeds to soft lockout and flashes error code 6.

• The control exits soft lockout after 5 minutes and begins another ignition sequence.

Gas Valve Diagnostic Codes (See Figure 45)

OFF = Control not powered Heartbeat = Normal Operation (Standby or call for heat) 1 Flash = Not used

2 Flashes 3 Flashes

4 Flashes = 5 Flashes =

6 Flashes + 1 Note 1 = 6 Flashes + 2 Notes 1,2 =

6 Flashes + 3 Notes 1,2 =

6 Flashes + 4 Notes 1,2 = 7 Flashes =

8 Flashes = 9 Flashes =

Low Pressure switch closed when should be open Low Pressure switch circuit was still sensed as open 30 seconds after the inducer was energized. System

is in 5 minute delay mode, with inducer off. After 5-minute delay, a new ignition sequence will be initiated. (Note: SV9541Q On/Off switch in off position during a call for heat will generate this diagnostic code) Limit switch string open Flame sensed out of sequence - Flame signal still present. Soft Lockout -Maximum retry count exceeded (failed to light within 4 trials for ignition)

Soft Lockout -Maximum recycle count exceeded - Last failure was Flame Sense Lost During Run, Cycling Pressure Switch or Blocked Condensate.

Soft Lockout -Maximum recycle count exceeded - Last failure was Airflow Proving Circuit Opened During Run

Soft Lockout -Maximum recycle count exceeded - Last failure was Limit Circuit Opened During Run Soft Lockout Due to Limit Trips Taking Longer than 2 minutes to Reset; Auto Reset After 1 Hour if Call for Heat Still Present. Reset by Cycling Call for Heat at Any Time. High Pressure Switch closed when sould be open.

High Pressure Switch open when sould be closed.

NOTE 1: The 6 + X designation indicates a combination of flash codes: 6 flashes shows the control is in soft lockout, followed by X flashes to indicate the reason the control went into soft lockout. When the 6+ X code is flashing, the SV9541 will attempt a new ignition sequence

after a five minute delay period, if the call for heat is still present. Reset of the thermostat will initiate a new ignition sequence immediately.

NOTE 2: Any combination of 5 'abnormal' events during a single call for heat will result in soft lockout. An 'abnormal' event is a Flame Sense Failure During Run, Airflow Proving Circuit Open During Run, or Limit Circuit Open During Run. The flash code will indicate which

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

Typical Gas Valve Honeywell

Manifold

Adjustment

(Hidden)

nostic Light

(on some models)

Manifold Pressure

LO AdJustment

On/Off

Adjustment

INLET

OUTLET

OUTLET_ _

25-22-25a

INLET

25-22-49a

44001 2020 07

HONEYWELL SV9541Q "SMART VALVE" Sequence of Operation

I POWERAPPLIEDTOAPPLIANCE 1

I THERMOSTATCALLSFORHEATI

HIANDLOWAIRPROVING

SWITCHESPROVEDOPEN?

COMBUSTIONAIR BLOWER

ONHIGHSPEED

_ WAITFORPRESSURESWITCHESTOOPEN I

FIVEMINUTEWAITPERIOD

"'ANOLOWA'RPROV'NOSW"C"ESCOMOUS,,ONOLOWEROE-ENERG,ZEOPROVEDCLOSEDWITHIN30SECONDS?

YES

PRE-PURGE I

P.LO, EOPENS:L ,.REESECONOFLAMEIGNITORPOWERED FAILURERECYCLEDELAY

]

PILOTLIGHTSANDFLAMEISSENSED _ PILOTVALVECLOSES;

DURING90SECONDTRAILFOR I ""-I PILOTIGNITOROFF

IGNITION? (1)

MAINVALVEOPENSONHIGH,

IGNITER"OFF"

ClRCULATINGFAN"ON"AND

COMBUSTIONAIRBLOWERONLOW

SPEED.MAINVALVEONLOWFIRE

AFTERDELAY (2)

FLAMESENSELOST?

/ NO

THERMOSTATCALLFORHEAT ENDS

PILOTANDMAINVALVECLOSE

I I

COMBUSTIONBLOWER "OFF"AFTER

POSTPURGE

CIRCULATINGAIRFAN"OFF"AFTER

DELAY

WAITFORNEXTCALLFORHEAT

[

PILOTANDMAINVALVECLOSE

FLAMESENSELOSTMORETHANFIVE

TIMESINTHISCALLFORHEAT?

YES

(1) Ignitor turns "OFF" about 30 seconds into the trial for ignition. If the pilot flame has

not lit, it turns back "ON" for the final 30 seconds ofthe 90 second trial for ignition. The pilot valve is energized during the entire trial for ignition. This is normal opera- tion for the gas ignition system.

(2) If a W2 call for heat is present, circulating fan on high speed. Combustion air blow-

er and main valve remain on high.

NOTE: If main limit string opens and takes longer than 2 minutes to close, system

goes into 1 hour wait period.

CIRCULATINGAIR FANOFF

AFTERDELAY

COMBUSTIONAIRBLOWEROFFAFTER

POSTPURGE

44001 202007 [_

HONEYWELL SV9541Q "SMART VALVE" Trouble shooting

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

LED

STATUS

Off No power to system control. Low voltage (24V) power at 24 VAC and COM terminals on ST9162A

Heartbeat Normal indication whenever the system is powered, unless some Bright - Dim abnormal event has occurred.

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

3 Flashes

4Flashes

5Flashes

6Flashes+ I Flash

6Flashes+ 2Flashes

INDICATES CHECK/REPAIR

Line voltage input at L1 and Neutral connectors on ST9162A Fan Timer.

System wiring harness is in good condition and securely connected.

Not Applicable - Normal Operation (stand by or call for heat)

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

(Combustion blower is not energized until pressure switches

opens) Pressure switch miswired orjumpered.

Low pressure switch, open when it should be closed (i.e. longer

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

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

Main Limit or Roll Out Switch is open.

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

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

heat speed after the "ON" delay. Soft Lockout.

Failed to light pilot during 90 sec. trial for ignition

Combustion air blower is de-energized, Circulating blower is de- energized after the "OFF" delay.

After 5-minute delay time,control system will reset and initiate a

new ignition sequence, Soft Lockout.

Last failure was Flame Sense lost during run.

Maximum recycle count exceeded

Combustion air blower is de-energized, Circulating blower is

de-energized alter the "OFF" delay.

After 5-minute delay time, control system will reset and initiate a

new ignition sequence,

Ignition system control switch must be in the ON position. Pressure switch operation, tubing, and wiring.

Restrictions in furnace air intake or vent piping.

Main limit switch. Manual reset burner rollout switch.

Limit and rollout switch wiring is in good condition and securely

connected.

Flame at pilot burner.

Gas supply off or pressure too low or high for appliance to operate. Damaged or broken HSI element

Line voltage HOT lead wire not connected to L1 terminal on ST9162A. Furnace not properly earth grounded.

Flame sense rod contaminated or in incorrect position. Pilot burner located in incorrect position. Pilot burner lead wires are in good condition and popery connected. Pressure switches operation, tubing, and wiring.

Gas supply off or pressure too low or high for appliance to operate. Line voltage HOT lead wire not connected to L1 terminal on ST9162A.

Furnace not properly earth grounded. Flame sense rod contaminated or in incorrect position. Pilot burner located in incorrect position. Pilot burner lead wires are in good condition and properly connected. Cycling, pressure switch

Condensate drain blocked Pressure switches operation, tubing, and wiring.

[_ 440012020 07

HONEYWELL SV9541Q "SMART VALVE" Trouble shooting continued

LED

STATUS

6Flashes+ 3Flashes

INDICATES CHECK/REPAIR

SoftLockout.

Last failure was pressure switch

Ignition system control switch must be in the ON position.

Maximum recycle count exceeded

Combustion air blower is de-energized, Circulating blower is

de-energized after the "OFF" delay.

After 5-minute delay time, control system will reset and initiate a

new ignition sequence, Soft Lockout.

Pressure switches operation, tubing, and wiring. Restrictions in furnace air intake or vent piping.

High winds blowing against vent.

6Flashes+ 4Flashes

7Flashes

8 Flashes

9 Flashes

Last failure was limit circuit opened during run.

Combustion air blower is de-energized, Circulating blower is

de-energized after the "OFF" delay.

After 5-minute delay time,control system will reset and initiate a

new ignition sequence,

SoftLockout.

Blowerfailure(typical) Limittriptooklongerthan2minutesto reset.

System will start a new ignition sequence after 1 hour, if call for heat still present.

High Pressure closed when should be open. (i.e., when call for heat begins). (Combustion blower is not energized until pressure switches

open)

High Pressure open when should be closed. (i.e., longer than 30 seconds after combustion/inducer is energized).

System goes into a5 minute delay periodwith combustion blower/ inducer"OFF". At end of the 5 minute delay another cycle begins.

Main limit switch. Limit and rollout switch wiring is in good condition and securely

connected.

Restriction in duct work. Dirty filter

Deadblower. Blockedductwork.

Pressure switches stuck closed (system will wait for pressure switch to

open).

Pressure switch miswired orjumpered. Ignition system control switch must be in the "ON" position.

Pressure switch operation, tubing and wiring.

Restrictions in furnace air intake or vent piping.

44001 2020 07 [_

11. Concentric Vent Termination

Vent Termination Clearances

CARBON MONOXIDE POISONING, FIRE AND

EXPLOSION HAZARD. Failure to properly vent this furnace could result in

death, personal injury and/or property damage. Inlet and outlet pipes may NOT be vented directly

above each other (standard vent terminals).

1. Determine termination locations based on clearances spe- cified in following steps and as shown in Figure 7, Figure 46 through Figure 51.

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

3. Do NOT terminate over public walkways. Avoid areas where condensate may cause problems such as above planters, patios, or adjacent to windows where steam may

cause fogging.

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

installations.

The vent termination is to be located at least 3' above any forced air inlet located within 10' ; and at least 10' from a

combustion air intake of another appliance, except another direct vent furnace intake.

6. In Canada, the Canadian FuelGas Codetakes precedence over the preceding termination instructions.

Concentric Vent Termination - Kit #

NAHA001CV& NAHA002CV

These kits are for vertical or horizontal termination of the combus- tion air inlet and the exhaust vent pipes on Category IV gas-fired

condensing furnaces. The NAHA001 CV kit can be used for 3" di- ameter pipe systems. The NAHA002CV kit can be used for 2" di- ameter pipe system. Refer to Table 10 for the correct pipe size for

the furnace. Both the combustion air inlet and the exhaust vent pipes must attach to the termination kit. The termination kit must

terminate outside the structure and must be installed per the in- structions outlined below for vertical or horizontal termination. Ver-

tical termination is preferred. Field supplied pipe and fittings are required to complete the installation.

Vertical & Horizontal Termination

Determine the pipe diameters required for the installation from Table 10 and Figure 48.

Determine the best location for the termination kit. See Figure47 for vertical termination or Figure46 and

Figure 51 for horizontal termination. Roof termination is preferred since it is less susceptible to damage, has re- duced intake contaminants and less visible vent vapor. For side wall termination, consideration should be given to: 1) possible damage from the vapors to plants/shrubs, other equipment and building materials, 2) possible damage to

the terminal from foreign objects, 3) wind effects that may cause recirculation of flue products, debris or light snowand

4) visible vent vapor.

Kit Components

Kit Contents:

3" Rain Cap or 2" Rain Cap 1 3" Diameter SDR-26 Pipe, 19 /2" Long or

4" Diameter SDR-26 Pipe, 371/8" Long, 2" Diameter SDR-26 Pipe, 315/8" Long or 21/2" Diameter SDR-26 Pipe, 24" Long, 3" Y Concentric Fitting or 2" Y Concentric Fitting

Nominal 3" or 4" Dia.

SDR-26 Pipe

2" or 3" Dia. 2 or 2112" Dia. 2" or 3" Dia.

Y Concentric Fitting SDR-26 Pipe Rain Cap

Concentric Vent Roof Installation

Vent t

Combustion Air

Roof Boot/ Flashing _

(Field Supplied)

Vent

Note: Support must be field installed to secure termination kit to structure.

Cut one 5" diameter hole through the structure for the NAHA001CV Kit or one 4" diameter hole for the

NAHA002CV Kit.

Maintain 12" min. clearance above highest anticipated

snow level. Max. of 24" above roof.

Support (Field Supplied)

(Field Supplied)

Combustion Air 25-22-02

25-22-03

Elbow

Dimension D may be lengthened to 60" max. or shortened by cutting the pipes to 12" min. Dimension A will change ac- cording to D dimension. (See Figure 48)

[_1 44001 2020 07

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii_i!ii!i!:ii,,ii iiii!i!_!i_ililililililiiiiiiiiiiConcentric Vent Dimensional

Drawing

B PVC Vent/Exhaust

Rain Cap to Vent Pipe Assembly

Drill clearance hole in rain

cap and pilot hole in vent pipe.

25-22-03 _-PVC Intake/Combustion

Model A* B C D**

NAHA001CV 33318 2 31/2 16718 NAHA002CV 38q 8 3 41/2 21118

= Dimension will change accordingly as dimension D is

lengthened or shortened.

** = Dimension D may be lengthened to 60" may also be short- ened

by cutting the pipes provided in the kit to 12" minimum

L;oncentnc lermmatlon Kit

NAHA001CV & NAHA002VC Venting

Table Dual Piping ONLY

50,000 & 75,000 Btuh Furnace

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

100,000 & 125,000 Btuh Furnace

NAHA001CV - 35' & (4) 90° elbows with 3" PVC pipe

1. Do not include the field supplied 45 ° elbow in the total elbow count.

2. If more than four elbows are required, reduce the length of both the inlet and the exhaust pipes five feet for each

additional elbow used.

3. Elbows are DWV long radius type for 2" and 3" vents.

If more than four elbows are required, reduce the length of both the inlet and exhaust pipes 5' 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 thick- ness requirement, the two pipes supplied in the kit may be re- placed by using the same diameter solid, single (no coupling connections) field supplied SDR-26 PVC (ASTM D2241) pipes. Do not extend dimension D more than 60". (See Figure 48)

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 Join- ing Pipe and Fittings section of the manual. A) Cement theY Concentric fitting to the 4" diameter kit pipe. (See Figure 49) B) Cement the 3" rain cap to the 21/2" diameter kit part. (See Figure 49) 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 49)

Stainless steel screw (Field supplied)

CARBON MONOXIDE POISONING HAZARD.

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

When using the alternate screw assembly method,

drill a clearance hole in the rain cap and a pilot hole in the vent pipe for the screw size being used.

Failure to drill adequate holes may cause cracking of the PVC components, allowing flue gases to be

recirculated.

CARBON MONOXIDE POISONING HAZARD.

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

Do not operate the furnace with the rain cap removed as recirulation of the flue gases may

occur. Water may also collect inside the larger combustion air pipe and flow to the burner

enclosure.

Install the Y concentric fitting and the pipe assemblythrough 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.

Secure the assembly to the structure as shown in Figure 47 or Figure 51 using field supplied metal strapping or equiva-

lent material.

NOTE: Ensure the termination height is above the roof sur- face or anticipated snow level as shown in Figure 47 for

vertical termination. Ensure the termination location clear- ance dimensions are as shown in Figure 50 and Figure 51

for horizontal termination.

44001 202007 [_

Concentric Vent and Combustion-Air Side Termination

Roof Overhang

12" min. 11

Maintain 12" clearance above highest

' anticipated snow level or grade

whichever is greater. 25-22-02

Concentric Vent Sidewall

Attachment

Strap (Field Supplied) _ Air

Combustion

8. Install the rain cap and the small diameter pipe assembly in the Y concentric fitting and the large pipe assembly. Ensure that the small diameter pipe is bottomed out and securely cemented in the Y concentric fitting.

9. Cement the furnace combustion air and vent pipes to the concentric vent termination assembly. See Figure 47 or Figure 51 for proper pipe attachment.

10. Operate the furnace through one heat cycle to ensure com- bustion air and vent pipes are properly connected to the

concentric termination connections.

;;;;;; ent

F,uahto

;;;;;; 1" max.

Air 45 ° Elbow

(Field Supplied)

Note: Securing strap must be field installed to prevent movement of termina-

tion kit in side wall,

25-22-02

[_ 440012020 07

Four Position Furnace

Models

Dual Certified

*9MPT050F12B1 *9MPT075F14B1

*9MPT100J16B1

*9MPT125L20B1

*9MPV050F12B1 *9MPV075F12B1

*9M PV100J16B1 *9MPV125L20B1

* Denotes Brand

25-23-30

International Comfort Products, LLC Lewisburg, TN 37091

Fast Parts Division 866-380-3278

Save This Manual For Future Reference

44001 202007 [_

TECHNICAL SUPPORT

Specifications

*9MPT050F12B *9MPT075F14B *9MPT100J16B *gMPT125L20B

General

GasType Nat L.P. Nat L.P. Nat L.P. Nat L.P. Transformer Size (VA) 40

T'stat Heat Anticipator .10 Input(Btuh)Std/AIt. HiFire 50,000 75,000 100,000 125,000

Output(Btuh)Std/AIt. HiFire 46,000 67,500 92,000 115,000

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

Electrical(VoltslHz/FLA) Gas& Ignition

GasType Std.MainOrifices (No/Size)

Gas Valve (Honeywell) Regulation Type

Manifold Press. Hi Fire (" WC)

Pilot Orifice Size Ignition Type/Series

Combustion

Flue Outlet Size (Inches) Std. Outlet Temp (o F)

@Blower / @Transition Box (HiFire) Std. Pressures (" of WC)

5' No Elbows

40' +5-90 ° DWV Elbows

@Blower / @Transition Box (Lo Fire) Std. Pressures (" of WC)

5' No Elbows

40' +5-90 ° DWV Elbows

Fan Controls Fan Control (Type)

Fan Control On (Timed-secs) Off

Limits &Controls RolloutSwitch(F)

LimitControl Settin9 (F) Std. Pressure Sw. (Part No)

Blower Switch Pressure (Close) Blower Switch Pressure (Open)

Transition Switch Pressure (Close) Transition Switch Pressure (Open)

High Altitude Pressure Sw. (Part No)

Blower Switch Pressure (Close) Blower Switch Pressure (Open)

Transition Switch Pressure (Close) Transition Switch Pressure (Open)

Blower Data

Type& Size

MotorAmps/Rpm MotorType/H.p.

Cap.MfdNolts FilterType&Size (Permanent- supplied)

CoolCap. (Tons)@ .5" W.C. L,ML, MHi& Hi Gas Conversion Kits All Models

Nat to LP NAHFOO2LP q011789 LP to Nat NAHFOO2NG q011787

_Order from Service Parts

Lo Fire 35,000 53,000 70,000 87,500

Lo Fire 32200 48,800 64,400 80,500

Lo Fire 25-55 30-60 30-60 30-60

11516019.8 11516019.0 11516019.0 115160111.2

Nat. L.P, Nat. L.P, Nat. L.P, Nat. L.P.

2142 2154 3142 3154 4142 4154 5142 5154

SV 9541 SV 9541 SV 9541 SV 9541 SV 9541 SV 9541 SV 9541 SV 9541

SNAP SNAP SNAP SNAP SNAP SNAP SNAP SNAP

3.5 10.0 3.5 10.0 3.5 10.0 3.5 10.0

Lo Fire (" WC)

1.7 4.9 1.7 4.9 1.7 4.9 1.7 4.9

.018 .011 .018 .011 .018 .011 .018 .011

HSP HSP HSP HSP HSP HSP HSP HSP

<140

-1.80 / -2.60

-1.30 / -2.30

-1.20 / -1.90

-1.00 / -1.80

300 26O

1014828

0.95

0.80

1.70

1.50

1014829

0.70

0.55

1.40

1.20

11-8 10/1050 PSC/I/2

10/370

16x25xl

1112,2,21/2,3

<140

-1.80 / -2.60

-1.30 / -2.30

-1.20 / -1.90

-1.00 / -1.80

300 210

1014828

0.95

0.80

1.70

1.50

1014829

0.70

0.55

1.40

1.20

11-10 1011050 PSC/II2

10/370

16x25xl

1112,2,2112,3.5

HW ST9162A

30/60

60,100,140,180

<140

-1.80 / -2.60

-1.70 / -2.50

-1.20 / -1.90

-1.00 / -1.80

300 240

1014828

0.95

0.80

1.70

1.50

1014829

0.70

0.55

1.40

1.20

11-10

10/1050

PSC/I/2

10/370

16x25xl

2112,3,31/2,4

<140

-1.80 / -2.60

-1.70/-2.50

300 180

1014827

1.30

1.10

1.80

1.60

1014826

0.85

0.70

1.70

1.50

11-10

13N00

PscP/4

401370 16x25x1(2) 3112,4,4112,5

[_1 THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE 44001202007

CIRCULATIONAIRBLOWERDATA For050Models3TonUnits

For 075 Models 3.5 Ton Units

Speed Low Med L Med H Hi

Tap

0.1 828 1083 1301 1408

0.2 804 1050 1242 1347

q 0.3 770 1028 1195 1295

.93

"6 0.4 735 985 1153 1237 _ 0.5 698 952 1093 1183

® 0.6 657 909 1040 1118

w 0.7 --- 863 935 1053

0.8 .... 812 865 976

0.9 ...... 802 887

1.0 ...... 720 787

For 100 Models 4 Ton Units

Speed Low Med L Med H Hi

Tap

0.1 823 1109 1527 1850

0.2 795 1087 1482 1791

q 0.3 747 1056 1426 1720

.93

"6 0.4 677 1016 1382 1648 _ 0.5 617 970 1317 1575

w 0.7 --- 763 1154 1401

0.6 544 854 1245 1485

0.8 --- 652 1043 1284

0.9 ...... 905 1161

1.0 ...... 737 1028

Speed Low Med L Med H Hi

Tap

._ 0.1 695 1025 1455 1724

0.2 674 1001 1410 1662

_" o." 0.3 653 951 1366 1601 .£ 3

"6 0.4 631 921 1309 1530

-_ -_ 0.5 609 891 1252 1460 E_=

14J

0.6 569 845 1187 1380

0.7 529 799 1122 1300

0.8 490 730 1030 1190

0.9 --- 680 950 1080

1.0 ...... 831 969

For 125 Models 5 Ton Units

Speed Low Med L Med H Hi

Tap

0.1 1720 1910 2127 2315

0.2 1686 1881 2087 2268

q 0.3 1644 1833 2024 2201

.93

"6 0.4 1600 1777 1961 2131 _ 0.5 1533 1720 1891 2029

w 0.7 1413 1571 1708 1820

0.6 1494 1647 1804 1948

0.8 1306 1470 1604 1730

0.9 .... 1349 1484 1614

1.0 ........ 1328 1430

44001202007 THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE [_

12 Wiring Diagram

[_1 THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE 44001202007

13 (*9MPT)

(D O..

>.,

O O3

-b

0.1 ;>

/°

44001202007 THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE [_1

I Replacement Parts - *gMPT

Models - _9MPTO5OF12B1, _9MPTO75F14B1, _9MPTIOOJ 16B1 8, _9MPT125L2OB1 (Natural Gas)

Replacement part supplied will be current active part. For

Key Description

No, Functional

1 Heat Exchanger,Primary

2 HeatExchanger,Secondary

3 Motor,Blower1/1151/2CCW

4 Mount,Motorkit'

5 Wheel, Blower

6 Transformer 7 Capacitor, 10Mfd.,370V

8 Control,FanTimer 9 Switch,Interlock

10 Switch,Pressure

11 Blower,Exhaust

12 Valve,Gas HSPNat.2 Stage 13 Burner,PilotHSP

14 Igniter/SensorHSP 15 Orifice,Burner#42Nat.

16 Switch,Limit (Rollout) 17 BurnerAssembly

18 Switch,Limit (Main)

19 Orifice,Pilot.018 20 Filter,HH 16X25X1/2"

_See Table below for bellyband location on motor

Bellyband Location

ModeI_9MPT A(in.) OSOF12B1 2.O9"

O75F14B1 1.81" 1OOJ16B1 1.81"

125L2OB1 1.65"

1/1153/4CCW

40Mfd.,370V

on Motor

Part Key

Number OSO 075 100 125 No.

1012850 1 1012854 1 1012858 1 1012862 1

1013762 1 1013763 1 1013765 1 1013767 1

1172488 1 1 1 1172489 1

1014824 1 1014822 1

1014823 1 1 1013011 1

1011420 1 1 1 1012722 1 1 1 1 1171929 1 1 1

1171982 1 1014459 1 1 1 1 1171981 1 1 1 1

1014827 1 1014828 1 1 1

1014339 1 1 1 1014340 1

1013351 1 1 1 1 1008731 1 1 1 1

1009524 1 1 1 1 1011351 2 3 4 5 1013102 2 2 2 2

1008723 1 1008724 1 1008725 -- 1 1008726 -- 1

1320366 1

34335002 1

1008445 1

34335001 1

503211 1 1 1 1

1010365 1 1 2 2

F12 F14 J16 L20

*gMPT

3arts not listed, consult place of purchase.

Description

Non-Functional

A Panel,Top

B Gasket,TopPanel

F Partition,Blower

H Housing,Blower

J Panel,BlowerCutoff

K Hanger,Blower L Door,Blower (Comfortmakeronly)

(Comfortmakeronly) (Comfortmakeronly) (Hellonly) (Hellonly) (Hellonly)

(Tempstaronly) (Tempstaronly) (Tempstaronly)

M BracketAsy.,DoorFiller

N Door,Front (Comfortmakeronly)

(Comfortmakeronly) (Comfortmakeronly) (Hellonly) (Hellonly) (Hellonly) (Tempstaronly) (Tempstaronly)

(Tempstaronly)

O Clamp,Capacitor

P TransitionAssembly

Q Gasket,Blower

R Board,Insulating

S Box, Collector

T Gasket,Transition

U Gasket, Collector Box

V Partition, Front Heat Exchanger

721020013 1 721020008 1 1 1

Part

Number 080 078 100 128

1012866 1 1 1012867 1 1012868 1

1012603 1 1 1012604 1 1012605 1

1172008 1 1172005 1 1172006 1 1172007 1

1012972 1 1012888 1 1 1

1012328 2 2 2 2 1014203 1 1

1014206 1 1014209 1 1014204 1 1 1014207 1 1014210 1 1014205 1 1 1014207 1 1014211 1

1013680 1 1 1013681 1 1014494 1

1014194 1 1 1014197 1 1014200 1 1014195 1 1 1014198 1

1014201 1 1014196 1 1 1014199 1 1014202 1

1170643 1 1 1 1014315 1

1012281 1 1 1012282 1

1012283 1 1014425 1 1 1 1

1012418 1 1 1012419 1 1012420 1

1012244 1 1 1012245 1 1012246 1

1013263 1 1013080 1 1013083 1 1013084 1

1012594 1 1 1012595 1 1012596 1

1012650 1 1012648 1

1012651 1 1012653 1

"9MPT

F12 F14 J16 L20

[_ THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE 44001202007

I Replacement Parts - *9MPT

Models - *9MPTO5OF12B1, *9MPTO75F14B1, *9MPTIOOJ 16B1 & *9MPT125L2OB1 (Natural Gas)

Realacement part supplied will be current active part. For parts not listed, consult alace of purchase.

Key Description Part Key Description Part

No. Functional Number 050 075 100 125 No, Functional Number

W Gasket, Attachment Plate

X Cover,JunctionBox Y Box,Junction Z Tube,Pilot

AA Bracket,Pilot

BB Manifold

CC Bottom,BurnerBox

DD Baffle,BurnerBox

EE Top,BurnerBox

FF Bracket,ManifoldSupport

GG Bracket,BurnerBox Side HH Bracket,ControIMounting

JJ Tube,Sensor KK Trap,DrainAssembly

LL Sightglass

(Tempstaronly)

MM Wrapper,FilterRack

NN Front,FilterRack OO Cover,Filter

PP Clip, Filter

QQ Gasket,Trap RR Bracket,Trap

SS Bracket,TrapBracket

TT Tube, DrainCoil.Box518"ID

UU Tube,DrainTee1/2"ID VV Tube, Relief

WW DrainVent

YY Tee,Drain

)( PARTNOT ILLUSTRATED )( DoorScrews

)( DoorScrewGrommets )( Coupling,Air Intake

)( Gasket,Air Intake )( Clamp,Hose5/8"

)( Clamp,Hose3/4" )( Coupling,Discharge

)( ClampHose )( Grommet,Vent

)( Bushing,Strain Relief )( Grommet,Vinyl(GasInlet)

)( Harness,Wire

1012542 2 1012543 1012544 1012545

1012350 1 1012349 1

1012832 1 1013189

1013077 1010901 1 1012970 1

1012971 1012278 1012279

1012334 1 1012335 1012336

1012338 1 1012339 1012340

1013702 1 1013703 1013704

1012377 2 1012532 2

1013677 1 1009238 1 1171917 1

1013235 1 1013236 1

741010039 1 741020001 1

2791043 1 1008482 3

1013701 1 1171986 1

1171987 1 1171988 1

1171989 1 1009238 1

1014003 1 1171915 1

1014488 4 1171990 4

1002284 1 1012583 1

1012975 4 1012976 2

1002522 2 1013830 4

1012697 1 1945287 1

1009535 1 1013689 1

1013690

*9MPT

F12 F14 J16 L20

1 1 1 1 1 1

1 1 1

2 2 2 2 2 2

1 1 1 1 1 1 1 1 1

1 1 1 1 1 1

1 2 2 1 2 2

1 2 2 3 3 3

1 1 1 1 1 1

4 4 4 4 4 4

1 1 1 1 1 1

4 4 4 2 2 2

2 2 2 4 4 4

1 1 1 1 1 1

1 1 1 1

1 1

)( Trap, DrainTee )( Tube,Drain 1/2" ID Drain

)( Tube,1/2"Elbow )( Coupling,1/2"Barbed

)( Tubing,5/8"IDDrain )( Connector,3/4"X112"

)( Elbow,112"CPVC street )( Grommet,Casing

)( Tube,ReliefExt. )( Connector,ReliefTube

)( Plate,Cover )( Gasket,CoverPlate )( Cap,Drain Tee

)( Clamp,TeeCap )( Manual, Users

)( Manual, Installation

Gas Conversion Kits - All models Nat to LP _1011789 LP to Nat q011787

Must be ordered from Service Parts

050 075 100 125 F12 F14 J16 L20

1171916 1 1171991 1

1171992 2 1171993 1

1171994 1 1171995 1

1171996 1 1170977 1

1009238 1

1171998 1 1171999 1

1172000 1 1172001 1

1172002 1

44102201004 1 44001202007 1

*9MPT

1 1 1 1 1 1

2 2 2

1 1 1 1 1 1

1 1 1

44001202007 THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE [_

TECHNICAL SUPPORT

Specifications

_gMPV080F12B *gMPV078F12B _gMPV100J20B _9MPV125L20B

General

GasType Nat L.P. Nat LP. Nat L.P. Nat L.P. Transformer Size (VA) 40

T'stat Heat Anticipator .10 Input(Btuh)StdlAIt. Hi Fire 50,000 75,000 100,000 125,000

Output(Btuh)Std/AIt. HiFire 46,000 70,500 92,000 115,000

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

Electrical(VeltslHzlFLA) 11516019.8 11516018.9 11516019.0 115160111.2 Gas& Ignition

GasType Nat. L.P, Nat. L.P. Nat. L.P, Nat. L.P, Std.MainOrifices(NolSize) 2142 2154 3142 3154 4142 4154 5142 5154

Gas Valve Honeywell SV 9541 SV 9541 SV 9541 SV 9541 SV 9541 SV 9541 SV 9541 SV 9541 Regulation Type SNAP SNAP SNAP SNAP SNAP SNAP SNAP SNAP Manifold Press. Hi Fire (" WC) 3.5 10.0 3.5 10.0 3.5 10.0 3.5 10.0

Pilot Orifice Size .018 .011 .018 .011 .018 .011 .018 .011

Ignition TypelSeries

Combustion

Flue Outlet Size (Inches) Std. Outlet Temp (o F)

Comb. Blower (MFDIVolts) @Blower I @Transition Box (Hi Fire)

Std. Pressures (" of WC) 5' No Elbows

40' +5-90 ° DWV Elbows @Blower I @Transition Box (Lo Fire)

Std. Pressures (" of WC) 5' No Elbows 40' +5-90 ° DWV Elbows

Limits &Controls RolloutSwitch(F)

LimitControlSetting (F) Fan Control (Type)

Fan Control On (Timed-secs) Off

Std. Pressure Sw. (Part No)

(Hi Fire)BIwer Switch Press (Close) Blower Switch Pressure (Open) (Lo Fire)Trans Switch Press (Close)

Transition Switch Pressure (Open)

High Altitude Pressure Sw, (Part No)

(Hi Fire)BIwer Switch Press (Close) Blower Switch Pressure (Open)

(Lo Fire)Trans Switch Press (Close) Transition Switch Pressure (Open)

Blower Data

Type& Size

MotorAmpslRpm MotorTypelH.p.

FilterType&Size (Permanent- supplied) Min.CoolCap. (Tons)

Max.CoolCap. (Tons) Gas Conversion Kits All Models

Natto LP _I011789 LP to Nat q011787

_Order from Service Parts

LoFire 35,000 52,500 70,000 87,500

LoFire 32,200 48,800 64,400 80,500

LoFire 35-65 40-70 40-70 40-70

Lo Fire C WC) 1.7 4.9 1.7 4.9 1.7 4.9 1.7 4.9

HW HSP

<140

4/370

-1.20 / -1.90

-1.00 / -1.80

300 260

1014828

0.95

0.80

1.70

1.50

1014829

0.70

0.55

1.40

1.20

11-8

9.8/1050 DC/1/2

16x25x1

1.5 3

<140

4/370

-1.20 1 -1.90

-I.00 1 -I .80

300 210

1014828

0.95

0.80

1.70

1.50

1014829

0.70

0.55

1.40

1.20

11-10

8.911080 DC/1

16x25x1

1.5 3

HW ST9162A

30/60

60,100,140,180

<140

4/370

-I .80 1-2.60

-1.70 1-2.50

300 240

1014828

0.95

0.80

1.70

1.50

1014829

0.70

0.55

1.40

1.20

11-10

11.2t1150 DC/1

16x25x1

2 5

<140

41370

-1.80 / -2.60

-1.70 / -2.50

300 190

1014827

1.30

1.10

1.80

1.60

1014826

0.85

0.70

1.70

1.50

11-10

11.2/1150 DC/1

16x25x1(2)

2 5

[_ THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE 44001 202007

Circulation Air Blower Data - *gMPV

Heating, Cooling & Continuous Airflow Settings

Continuous Blower (CFM) @ 0.10" Static Lo

Switch Settings

#1 #2 50K 75K 100K 125K

O* O* 540 540 700 703

0 1 660 660 860 821 1 0 780 780 1020 1000

1 1 900 900 1180 1160

*Factory Setting

Hi Heat Air Temperature Adjustment (° F) **

Switch Settings Furnace Model

#3 #4 #5 50K 75K 100K 125K

0"* 0"* 0"* 0 0 0 0

0 0 1 3 2 3 2 0 1 0 6 4 5 6 0 1 1 14 6 9 11

1 0 0 17 11 13 13 1 0 1 -8 -4 -4 -5

1 1 0 -13 -4 -7 -5 1 1 1 -17 -4 -9 -5

*Factory setting **Approximate air temperature change from factory setting @ 0.20"

static on high heat ).

Furnace Model

Heat Air Temperature Adjustment (° F)**

Switch Settings Furnace Model

#3 #4 #5 50K 75K lOOK 125K

0"* 0"* 0"* 0 0 0 0

0 0 1 1 1 1 6 0 1 0 4 2 2 8

0 1 1 7 3 5 12

1 0 0 11 6 8 16 1 0 1 -7 -4 -5 -1 1 1 0 -11 -6 -9 -4

1 1 1 -15 -9 -11 -7

*Factory setting *'Approximate air temperature change from factory setting @ 0.20"

static on high heat ).

Cooling (CFM) @ 0.50" Static

Switch Settings Furnace Model

#6 #7 #8 50K 75K 1OOK 125K

O* 0* 0* 1170 1395 2095 2059

0 0 1 1098 1197 1875 1859 0 1 0 991 1096 1642 1700

0 1 1 894 1000 1489 1621

1 0 0 807 907 1255 1410 1 0 1 697 799 1013 1191

1 1 0 621 650 830 986 1 1 1 556 543 750 800

*Factory setting

Blower Motor Settings

[OONT'"UOOS]I ]1OOO""O]

123456 [1 [1 [1 [1 D

ON 1 l

; 1<_>8 ; INPUT

OFF 0 THERMOSTAT

DIP CONNECTIONS

SWITCHES

SIGNAL OR

010

*EXAMPLE Cooling Airflows Switches

6,7&8: 000 3.5 Ton

001 3.0 Ton 010 2.5 Ton 011 2.0 Ton

*See "Technical Support

Manual" for correct airflow

rates,

25-23-10

44001 202007 THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE [_

Figure 1

Circulation Air Blower Data - *gMPV

Heating, Cooling & Continuous Airflow Settings

_9MPV050 COOLING

(CFM VS. EXTERNAL STATIC PRESSURE)

+000

-- --001

..... 010

_011 _100

_101

-t,-110

-_-111

Figure 2

1200

lOOO

800

600

400

200

0.1 0.3 0.5 02

ESP" W.C.

_9MPV050 Hi HEAT

(CFM VS. EXTERNAL STATIC PRESSURE)

_ooo

- -OOl

---OLO

-_-Oll _1oo _1o1,11o,111

0.1 0.2 0.5 0.7 1

ESP" W.C.

[_ 440 01 2020 07

THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE

Circulation Air Blower Data - *gMPV

Heating, Cooling & Continuous Airflow Settings

Figure 3

1000

900

800

700 _ '_

0 500

,oo--<___._ _ _leo

300 "_ _ __,_ ._.111

200

100

*9MPV050 Lo HEAT

(CFM VS. EXTERNAL STATIC PRESSURE)

_000

_o11--010

----001

_,_ _101

.-I-110

0,1 0.2 0.5 0.7 1

Figure 4

18oo .............................................

16oo

14oo

12oo

lOOO

800

600

400

200

ESP" W.C.

*9MPV075 COOLING

(CFM VS. EXTERNAL STATIC PRESSURE)

_ooo

--1001 _010

_011 _I00

I---101 "S--ll0

"_/_I11

0.1 0,3 0,5 0.7 ESP" W.C.

440 01 2020 07 [_

THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE

Circulation Air Blower Data - *gMPV

Heating, Cooling & Continuous Airflow Settings

Figure 5

1400

1200

1000

800

u,,,

o')

6OO

400

200

_9MPV075 Hi HEAT

(CFM VS. EXTERNAL STATIC PRESSURE)

_ooo

- -OOl

---OLO _-Oll

_1oo _1o1,11o,111

Figure 6

0 oo

0,1 0.2 0.5 0.7 1

ESP" W.C.

_9MPV075 Lo HEAT

(CFM VS. EXTERNAL STATIC PRESSURE)

_ooo

-m-OOl

"_1010

_011 _I00

_I01

i-ii10

i_-lll

o.1 0.2 0.5 0.7

ESP" W.C.

I_ 440 01 2020 07

THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE

Circulation Air Blower Data - *gMPV

Heating, Cooling & Continuous Airflow Settings

Figure 7

_9MPV100 COOLING

(CFM VS. EXTERNAL STATIC PRESSURE)

I 1000

----001

•-_--010 _011 _I00

_I01 _II0 _III

Figure 8

2500

2000

1500

0 oo

1000

500

0.1 0.3 0.5 0.7 ESP" W.C.

*9MPV100 Hi HEAT

(CFM VS. EXTERNAL STATIC PRESSURE)

-...._ _

0.1 0.2 0.3 0.5 0.7

ESP" W.C.

THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE440 01 2020 07 [_

Circulation Air Blower Data - *gMPV

Heating, Cooling & Continuous Airflow Settings

Figure 9

1800

1600

1400

1200

_E ,_ 1000

800

600

400

200

*9MPVIO0 Lo HEAT

(CFM VS. EXTERNAL STATIC PRESSURE)

_ooo

--1001 "_'_010

_OlI _IOO

1---101

--S--llo

-_-I11

0.1 0.2 0.3 0.5 0.7

Figure 10

2500 .............................................

2OO0

_; 1500

100o

500

ESP"W.C.

_9MPV125 COOLING

(CFM VS. EXTERNAL STATIC PRESSURE)

,-m-ooo

-,,,,-OOl ,,-1_,-OlO

_Oll _1oo ,,-e,-lOl ,,-m,-11o

,,_,-111

0.1 0.3 0.5 0.7 ESP" W.C.

[_ THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE 44001 202007

Circulation Air Blower Data - *gMPV

Heating, Cooling & Continuous Airflow Settings

Figure 11

2500

2000

1500

1000

500

_9MPV125 Lo HEAT

(CFM VS. EXTERNAL STATIC PRESSURE)

_ooo

-- --OOl

----OlO _Oll

_1oo _1Ol ,-_11o

-_ 111

Figure 12

0.1 0.2 0.5 0.7 ESP" W.C.

_9MPV125 Hi HEAT

(CFM VS. EXTERNAL STATIC PRESSURE)

-- [_000

-- --001 ,--,--010

_011 _100 L_1O1,11o,111

0.1 0.2 0.5 0.7 ESP" W.C.

44001 202007 THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE [_1

14. Wiring Diagram (1/2HP VariableSpeed Blower Motor)

]OOL ON DELAY: 5 SEC EAC + HUM: 0.8 A MAX. COMBINED ;OOL OFF DELAY: 90 SEC FAN CONTROL MODULE

{EAT ON DELAY: 30 SEC HEAT OFF DELAY 81 THERMOSTATTYPE

FACTORY 60 SEC. 100 SEC, 140 SEG. 180 SEC. SWITCH 3 NOT DEFINED OR SINGLE STAGE 2 STAGE

SETTING SWITCH 3 NOT USED

................... uJ _" <{

, _--:_z ......... _ _o

o _ - -_ _ - _ ] _ _ ............................._ o< _ o LU WZLUI_ I I <_ u

- - { z _ z ..........................................JlIo_

z_ U I_ -''_"I 11 I 6. / "_°_I ......... I _%',.-I_Y_>-:I<

THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE

440 01 2020 07

Wiring Diagram (1 HP Variable Speed Blower Motor)

COOL ON DELAY: 5 SEC FAN CONTROL MODULE EAC + HUM: 0.8 A MAX. COMBINED COOL OFF DELAY: 90 SEC

HEAT ON DELAY: 30 SEC HEAT OFF DELAY s I THERMOSTAT TYPE

I I

FACTORY 60 SEC. 100 SEC. 140 SEC. 180 SEC. SWITCH 3 NOT DEFINED OR SINGLE STAGE 2 STAGE

SETTING

I I I

I IS

I I

m_z

+li°

i Oc_

(

_LU <Cd

I+lo

+lR

..................._...........J

II,,¸,

IND IN

I I

I-.-

WO o _ _Z

_× ° o8°0

_c_O

_ _J

44001 202007 THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE [_

z::c

15. (*9MPV)

440 01 2020 07

I Replacement Parts - *gMPV

Models - *9MPVO5OF12B1, *9MPVO75F12B1, *9MPVIOOJ2OB1 & *9MPV125L2OB1 (Natural Gas)

Replacement part supplied will be current active part. For

Key Description

No. Functional

1 Heat Exchanger,Primary

2 Ht Exchanger,Secondary

3 Motor,Blower

4 Mount,Motorkit* 5 Wheel, Blower

6 Transformer 8 Control,FanTimer 9 Switch,Interlock

10 Switch,Pressure

11 Blower,Exhaust

12 Valve,GasHSPNat.2 Stg 13 Burner,PilotHSP

14 Igniter/SensorHSP 15 Orifice,Burner#42 Nat.

16 Switch,Limit(Rollout) 17 BurnerAssembly

18 Switch,Limit(Main)

19 Orifice,Pilot.018 20 Filter,HH 16X25X1/2"

21 Control,MtrVariableSpd

*See Table below for bellyband location on motor

Bellyband Location

on Motor

Model*9MPV A(in.) O5OF12B1 1.38" O75F12B1 2.O9"

1OOJ12OB1 2.O9" 125L2OB1 2.O9"

Part

Number 050 075 100 125

1012850 1 1012854 1 1012858 1 1012862 1

1013762 1 1013763 1 1013765 1 1013767 1

1012478 1 1012479 1 1 1

1014822 1 1 1 1

1013011 1

1172129 1 1 1 1012722 1 1 1 1 1014459 1 1 1 1

1171981 1 1 1 1 1014827 1

1014828 1 1 1 1014339 1 1 1

1014340 1 1013351 1 1 1 1

1008731 1 1 1 1 1009524 1 1 1 1

1011351 2 3 4 5 1013102 2 2 2 2 1008723 1

1008724 1 1008725 1 1008726 1

1320366 1

34335001 1 34335002 1

1008445 1

503211 1

1010365 1 1013410 1

1013411 1013412 1013413

F12B F12B J20B L20B

*9MPV

1 1

1 1 2 2

3arts not listed, consult place of purchase.

Key Pan

No. Description Number 050 075 100 125

A Panel,Top

B Gasket,TopPanel

F Partition,Blower

H Housing,Blower

J Panel, Blower Cutoff

K Hanger,Blower L Door,Blwer (Cmakeronly)

(Cmakeronly) (Cmakeronly) (Cmakeronly) (Hellonly) (Hellonly) (Hellonly) (Hellonly) (Tstaronly)

(]-staronly) (Tstaronly) (]-staronly)

M BracketAsy.,DoorFiller

N Door,Front (Cmakeronly)

(Cmakeronly)

Croakeronly)

(Hellonly) (Hellonly) (Hellonly) (]-staronly) (]-staronly) (Tstaronly)

P TransitionAssembly

Q Gasket,ExhaustBlower

R Board,Insulating

S Box,Collector

T Gasket,Transition

U Gasket,CollectorBox

1012866 1 1 1012867 1 1012868 1

1012603 1 1 1012604 1

1012605 1 1172008 1

1172005 1 1172006 1 1172007 1

1012972 1 1012888 1 1 1

721020013 1 721020008 1 1 1

1012328 2 2 2 2 1014227 1

1014230 1 1014233 1 1014236 1 1014228 1

1014231 1 1014234 1 1014237 1 1014229 1 1014232 1 1014235 1 1014238 1

1013680 1 1 1013681 1 1014494 1

1014194 1 1 1014197 1 1014200 1 1014195 1 1 1014198 1

1014201 1 1014196 1 1 1014199 1 1014202 1

1012281 1 1 1012282 1

1012283 1 1014425 1 1 1 1

1012418 1 1 1012419 1 1012420 1

1012244 1 1 1012245 1 1012246 1

1013263 1 1013080 1 1013083 1

1013084 1 1012594 1 1

1012595 1 1012596 1

*9MPV

F12B F12B J20B L20B

440 O1 2020 07 [_

[ Replacement Parts - *gMPV

Models - *9MPVO5OF12B1, *9MPVO75F12B1, *9MPVIOOJ2OB1 & *9MPV125L2OB1 (Natural Gas)

Replacement part supplied will be current active part. For parts not listed, consult place of purchase.

*9MPV

Key Description Part 080 078 100 128 No, Number

1012648 11 I DoorScrews 1014488 1012651 )( I DoorScrewGrommets 1171990

1012653 )( I Coupling,AirIntake 1002284

W Gasket, AttachmentPlate 1012842 )( I Gasket,Air Intake 1012583

No. Number1012544 F]!B FI!B J!B LiuB i i_ I i_ i_F B F B J B L B

X Cover,JunctionBox 1012350 1 1 1 1 )( I Coupling,Discharge 1002522 Y Box,Junction 1012349 1 1 1 1 )( I ClampHose 1013830

Z Tube, Pilot 1012832 1 - 1 - )( I Grommet,Vent 1012697

CC Bottom,BurnerBox 1012334 1 1 - - )( I Tube,Drain112"IDDrain 1171991

AA Bracket,PilotBB Manifold 1012970101090111 li lii 11 IHarness'Wire1 i 10136901013689 -i _ i DD Baffle,BurnerBox 1012338 1 1

EE Top,Burner Box 1013702

FF Bracket,ManifoldSupport 1012377

GG Bracket,BurnerBoxSide 1012532

HH Bracket,ControlMounting 1012321

JJ Tube,Sensor 1009238

KK Trap,DrainAssembly 1171917

LL Sightglass 1013238

(Tstaronly) 1013236

MM Wrapper,Filter Rack 741010039

NN Front,FilterRack 741020001

OO Cover,Filter 2791043

PP Clip, Filter 1008482

QQ Gasket,Trap 1013701

RR Bracket,Trap 1171986 SS Bracket,Trap Bracket 1171987

TT Tube,Drain Coll.Box518"ID 1171988 UU Tube,DrainTee 1/2"ID 1171989 VV Tube,Relief 1009238

WW DrainVent 1014003

YY Tee,Drain 1171915

1012543

1012848 )( I Clamp,Hose3/4" 1012976

1013189 1 - )( I Bushing,StrainRelief 1945287 1013077 1 )( I Grommet,Vinyl(GasInlet) 1009535

1012971 I1 I Harness,WireLo Voltage 1012520 1012278 I1 I Harness,WireHighVoltage 1012521

1012279 )( I Trap, DrainTee 1171916

1012338 1012336 )( I Tube,112"EIbow 1171992

1012339 i -- )( I Tubing,518"1DDrain 1171994 1012340 1 )( I Connector,3/4"X112" 1171995

1013703 1013704

1 1 ; i

2 2 2 2 2 2 2 2

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

1 1 1 1 1 1 2 2 1 1 2 2 1 1 2 2 3 3 3 3 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I

Key Description Part

)( I Clamp,Hose5%" 1012975

)( I Coupling,112"Barbed 1171993

)( I Elbow,1/2"CPVCstreet 1171996 )( I Grommet,Casing 1170977

)( I Tube, ReliefExt. 1009238 )( I Connector,ReliefTube 1171998

)( I Plate,Cover 1171999 )( I Gasket,Cover Plate 1172000

)( I Cap, DrainTee 1172001 )( I Clamp,TeeCap 1172002 )( I Manual,Users 44102201003

)( I Manual,Installation 44001202007

Gas Conversion Kits - All models Nat to LP *1011789 LP to Nat *1011787 * Must be ordered from Service Parts

_] 440 01 2020 07

ICP C9MPT050F12B1, C9MPT075F14B1, C9MPT100J16B1, C9MPT125L20B1, C9MPV050F12B1 Installation Guide

Specifications and Main Features

Frequently Asked Questions

User Manual