ICP H9MPT050F12A1, H9MPT050F12B1, H9MPT075F12A1, H9MPT075F14A2, H9MPT075F14B1 Installation Guide

...

Page 1

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

VariableSpeed

SAFETY REQUIREMENTS

Recognize safety information. This is the safety- alert symbol/XX. When you see this symbol onthe furnace and in instructions or manuals bealert

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 could result in minor personal injury or product and property damage.

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) NFPA No. 54/ANSIZ223.1. In Canada, refer tothe current edition ofthe National Standard Canada CAN/CGA- B149.1 - and .2-M91 Natural Gas and Propane

Installation Codes (NSCNGPIC). Wearsafetyglasses andworkgloves. Havefireextinguisheravailableduring start-upandadjustment 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 requre

these instructions as a minimum for a safe installation.

Manufactured by:

International Comfort Products Corporation (USA)

Lewieburg, TN USA 37091

Table of Contents

1.SafeInstallationRequirements................. 4

2.Installation................................ 5

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

4.Vent&CombustionAirPiping ................ 10

5.GasSupplyandPiping ...................... 21

6.ElectricalWiring ........................... 25

7.Ductworkand Filter ........................ 26

8. ChecksandAdjustments.................... 30

9.FurnaceMaintenance ....................... 32

10.SequenceofOperation& Diagnostics.......... 32

11.ConcentricVentTermination................. 38

12.TechSupportandParts .................... 41

Fire or Explosion hazard.

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

Such use could result in death, bodily injury and/or property damage.

PrintedinU.S.A. LP1 1/14/2002 440 01 201 2 02

Page 2

2-Stage Gas Furnaces

*9MPT - Multispeed PSC Blower Motor

*9MPV - Variable Speed Motor

*Denotes Brand (T, H or C)

* 9 MP

Brand Identifier

T = Tempstar

C = Comfortmaker/Keeprite H = Heil/Arcoaire

N = Non-Brand Specific (Generic)

X = Evaluation

Brand Identifier

8 = Non-Condensing, 80+% Gas Furnace

9 = Condensing, 90+% Gas Furnace

InstallationConfiguration

UP = Upflow DN = Downflow UH = Upflow/Horizontal HZ = Horizontal DH = Downflow/Horizontal

MP = Multiposition, Upflow/Downflow/Horizontal

Major Design Feature

1 = One (Single) Pipe N = Single Stage

T 0 75 F 12

A # Engineering Rev.

L Denotes minor changes

MarketingDigit

Denotes minor change

Cooling Airflow

08 = 800 CFM

12 = 1200 CFM 14 = 1400 CFM

16 = 1600 CFM 20 = 2000 CFM

Cabinet Width

B = 15.5" Wide

F = 19.1" Wide

LP1 11/5/2001 440 01 1012 01 Printed in U.S.A.

Page 3

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: _1 LP: _1

Which blower speed tap is used?

High Fire __ Low Fire or (Cooling)

Temperature of SupplyAir: 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 _1 NO _1

Blower Speed Checked? YES _1 NO _1

All Electrical Connections Tight? YES _1 NO _1

Gas Valve OK? YES _1 NO _1

Measured Line Pressure When Firing Unit:

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

YES _1 NO _1

NO_1

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:

44001 201202

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

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

Static Pressure (Ducts): Supply Air Return

Date of Start - Up: CO ?

C02 ?

Page 4

1. Safe Installation Requirements

Installation or repairs made by unqualified persons can 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 technician who is experienced in such work, who is familiar with all precautions and safety procedures required in such

work and is equipped with the proper tools and test instruments.

Failure to carefully read and follow all instructions in this manual can result in furnace malfunction, death,

personal injury and/or property damage.

NOTE: This furnace is design certified by the Canadian Stan-

dards Association (CSA) for installation in the United States and Canada. Refer to the appropriate codes, along with Figure 1 or Figure 2 and this manual, for proper installation.

• This furnace is NOT approved for installation in

mobile homes, trailers or recreation vehicles.

• Do NOT use this furnace as a construction heater or to heat a building that is under construction.

• 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. (Fur- naces can be converted to LR gas with approved kit.)

• Do NOT use open flame to test for gas leak.

• Ensure adequate combustion and ventilation air is pro-

vided to the furnace.

• Seal around supply and return air ducts.

• The vent system MUST be checked to determine that it is

the correct type and size.

• Install correct filter type and size.

• Unit MUST be installed so electrical components are pro-

tected from direct contact with water.

NOTE: It is the personal responsibility and obligation of the end user to contact a qualified installer to ensure that the installation is adequate and conforms to governing codes and ordinances.

Safety Rules

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

service provided 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 recom-

mends that users of gas- burning appliances install carbon monoxide detectors. There can be various sources of car-

bon 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 seri- ous bodily injury and/or death. Therefore, to help alert

people of potentially dangerous carbon monoxide levels, you should have carbon monoxide detectors listed by a na- tionally recognized agency (e.g. Underwriters Laborato- ries or CSA International) installed and maintained in the building or dwelling (see Note below).

Carbon monoxide or "CO" is a colorless and odorless gas produced when fuel is not burned completely or when the flame does not receive sufficient oxygen.

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

ing or dwelling. Fire or smoke can cause serious bodily inju- ry, death, and/or property damage. Therefore, in order to alert people of potentially dangerous fire or smoke, you should have fire and smoke detectors listed by Underwrit- ers Laboratories installed and maintained in the building or dwelling (see Note below).

Note: The manufacturer of your furnace does not test any de-

tectors and makes no representations regarding any brand or type of detector.

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

should do the the following:

1. Thoroughly read this manual and labels on the unit. This will help you understand how your unit operates and

the hazards involved with gas and electricity.

2. Do not use this unit if any part has been under water. Immediately call a qualified service technician to inspect the unit and to replace any part of the control system and any gas control which has been under water.

3. Never obstruct the vent grilles, or any ducts that pro- vide air to the unit. Air must be provided for proper com- bustion and ventilation of flue gases.

FreezingTemperaturesandYour Structure

Freeze warning.

Turn off water system. If your unit remains shut off during cold weather the

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

Your unit is equipped with safety devices that may keep it from op- erating if sensors detect abnormal conditions such as clogged ex-

haust flues. If your unit remains shut off during cold weather the water pipes

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 main supply water into the structure and drain the water lines if possible. Open faucets in appropriate areas.

2. Have someone check the structure frequently during cold weather to make sure it is warm enough to prevent pipes from freezing. Suggest they call qualified service agency, if required.

WinterShutdown

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 8 trough NO TAG)

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 sanitary type (RV) antifreeze into the condensate trap. Re- connect the 5/8" OD rubber hose to the stub on the vent drain fitting. Secure with the hose clamp.

[_ 44001 2012 02

Page 5

2. Whenyoureturnhome,yourfurnacewillbereadytostart,asitis

Disconnectthe3/4"ODrubberhosefromthecondensate trap.Insertafunnelintothehoseandandpourfour(4)

notnecessarytodraintheantifreezefromthefurnace• ouncesofsanitarytype(RV)antifreezeintotheplastic Transitionbox.Squeezethehosetogetherneartheend andquicklyreconnectthe 3/4" OD rubber hose to the stub

on the condensate trap. Secure with the hose clamp•

2. Installation

Typical Upflow Installation

Poison carbon monoxide gas Hazard.

This furnace can NOT be common vented or connected to any type B, BW or L vent or vent connector, nor to

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

Combustion Air Check in Gas Vent lnstallation section. This furnace MUST be vented to the outside.

Failure to properly vent this furnace or other

appliances can result in death, personal injury and/or property damage.

Locationand Clearances

1. Refer to Figure 1 or Figure 2 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 furnace where the old one was. Choose the location or

evaluate the existing location based upon the minimum clearance and furnace dimensions (Figure 3).

CAUTION

Special precautions MUST be made if installing furnace in an area which may drop below freezing. This can cause improper operation or damage to equipment. If furnace

environment has the potential of freezing, the drain trap and drainline must be protected. The use of electric heat tape or RV antifreeze is recommended for these installations. (See

"Condensate Trap Freeze Protection Section")

Do NOT operate furnace in a corrosive atmosphere containing chlorine, fluorine or any other damaging chemicals. Refer to Combustion & Ventilation Air section,

Contaminated Combustion Air.

*8" Min. 20' Max. [_ _lnlet Pipe

insame _ _(notusedon atmoepheris(_ _ SinglePipe

Vent PipesMUST

supported Horizontallyand

Vertically

* H i,

Increaseminimumfrom8to18 forcoldclimates(sustainedtemperatures

below0oF). 25-23-33

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iiiiiiiiiiiiii!il Typical Downflow Installation

• _ 1_'8" Min.

InletPipe _ _] 20' Max (notused on U • '

SngePpe_ _ In same model) ,:_ d=b atmospheric

e MUSTb

supportedHorizot

tallyandVerticallI

AIuminumornon-rustingshieldrecommended.

(SeeVentTerminationShieldingfordimensions).

Coupling on

ends of exhauel

model)

SeeVentTermination Shielding in Vent Coupling on in-

Section. side and outside

zone

pipe.Totalpipe&

cou_lJJ:Lq..outside

31'Min. 01Max.

I same atmo- I_heric

zolle

Min. Max.

same

* Increase minimumfrom 8" to 18" for cold climates(sustained temperaturesbelow0°F).

44001 201202 E_

25-23-33a

Page 6

Dimensions and Clearances

°_ F VENT_MPD076_

LS_Ws,ss Kol"_

Cabinet to Combustible Clearances

_o__OT._ ,_ _ _o_ _OE

1 0 0 0 0 3 0

FRONT

Unit

Capacity

*gMPT050F12A *gMPT075F14A

*gMPT100J16A

*9MPT125L20A *9MPV050F12A *9MPV075F12A

*9MPV100J20A *9MPV125L%A

BOWOM

BoSom

143_ 143_

183_

23 143_ 143_

183_

Top

25-23-36b

[_ 44001 2012 02

Page 7

InstallationReouirements drain line must be provided. See "Condensate Drain Trap" section

for further details.

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 recommended for access to the burner,

controls and filter.

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

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.

Fire Hazard. Place furnace on noncombustible subbase on

downflow applications, unless installing on non-com- bustible flooring.

Failure to install unit on noncombustible subbase can

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

8. For horizontal installations, line contact is permissible only between lines formed by intersection of back and two sides

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

9. Residential garage installations require:

• Burners and ignition sources installed at least 1 8" 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.

InstallationPositions

Leveling

Proper leveling of the furnace must be provided to insure proper drainage of the condensate from the furnace. The furnace must be level to within 1/4" from front to back and from side to side for upflow and downf!ow installations or top to bottom for horizontal

installations.

Ventand CombustionAir 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.

HorizontalFurnaceInstallation

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.

Typical Horizontal Installation

Inlet Pipe (notusedon SinglePipemodel)

Vent ___

Pipe

Condensate Trap

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

right) or downflow airflow position. DO NOT install this furnace on its back. For the upflow position, the return air ductwork can be attached to either the left or right side panel and/or the bottom. For horizontal and downflow positions, the return air ductwork must

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

FurnaceInstallationConsiderations

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

CondensateTrapand 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

44001 201202

25-23-34

NOTE: 5" bottom clearance required for condensate trap.

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 pre- vent movement. These straps should be attached to the furnace with sheet metal screws and to the rafters or joists with bolts. The preferred method is to use an angle iron frame bolted to the rafters or joists. (Take caution to allow door panels to be removed for maintenance)

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.

Page 8

Thirty(30)inchesbetweenthefrontofthefurnaceandadjacent

constructionorotherappliancesMUST 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

3. Combustion & Ventilation Air

Poison carbon monoxide gas Hazard. Use methods described here to provide combustion

and ventilation air.

Failure to provide adequate combustion and ventilation

air can result in death and/or personal injury.

Ventingand CombustionAir Check

NOTE: 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 re-

sponsibility for modifications made to existing equipment. NOTE: If this installation replaces an existing furnace from a

commonly vented system, make sure there is adequate combus-

tion air for all appliances, MAKE THE FOLLOWING CHECK.

1. Seal any unused openings in the venting system.

2. Visuallyinspecttheventing system for proper size and hor-

izontal pitch to ensure there is no blockage or restriction, leakage, corrosion or other deficiencies which could cause

an unsafe condition.

3. Insofar as is practical, close all doors and windows and all

doors between the space in which the appliance(s) remain- ing connected to the venting system are located and other spaces of the building.

4. 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 will operate at maximum speed. Do not operate a summer exhaust fan. Close fireplace dampers.

5. Follow the lighting instructions for each appliance being in-

spected. Adjust thermostat so appliance(s) wi!! operate continuously.

6. Allow 5 minutes of main burner operation, then check for

spillage at the draft hood relief opening of each appliance. Use the flame of a match or candle (Figure 5).

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Vent Pipe Draft Hood

Typical Gas

Water Heater,_l I I _"P_-

After it has been determined that each appliance vents properly, return doors, windows, appliances etc. to their

normal condition.

Match

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 sup- ports.

For horizontal installation over a finished living space. A field fab- ricated auxiliary drain pan with drain pipe is recommended to pre-

vent damage by overflow due to blocked condensate drain.

8. If improper venting is observed, the cause MUST be cor- rected using the appropriate tables in code books of coun- try having jurisdiction.

NOTE: If flame pulls towards draft hood, this indicates sufficient venting,

NOTE: Non direct vent appliances occupying same enclosed space as furnace MUST have enough air for proper combustion

and ventilation. All duct or openings for supplying combustion and ventilation air must comply with the gas and electrical codes ofthe

country having jurisdiction.

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

And Combustion Air Check in this manual.

AirOpeningsandConnecting Ducts

Total input rating for all non direct vent gas appliances MUST be considered when determining free area of open- ings.

Connect ducts or openings directly to outside.

When screens are used to cover openings, they MUST be no less than t/4" mesh.

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

5. When sizing grille or louver, use the free area of opening. If free area is NOT stamped or marked on grill or louver, as-

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

Confined Space Installation

NOTE: A confined space is defined as an area with less than 50 cubic feet per 1,000 BTUH input rating for all gas appliances

installed in the area.

Requirements

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

tical ducts or openings.

Figure 6 illustrate how to provide combustion and ventila- tion air. A minimum of two permanent openings, one inlet and one outlet, are required.

One opening MUST be within 12" of the floor and the se- cond opening within 12" of the ceiling.

Size openings and ducts per Table 1.

Horizontal duct openings require 1" square of free area per 2,000 BTUH of combined input for all gas appliances in

area (see Table 1). Vertical duct openings or openings directly to outside re-

quire 1" square of free area per 4,000 BTUH for combined input of all gas appliances in area (see Table 1).

[_ 44001 2012 02

Page 9

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

This installation NOTapproved in Canada

GableVent.__)

- OptionalInletAir(1)

SoffitVent

VentilatedCrawlSpace

MinimumOneInletand OneOutletAir Supply is Required

InletAir OpeningMustbeWithin12"of floor OutletAir OpeningMust beWithin12"of ceiling

(1) t SquareInchper 4000BTUH (2) 1Squareinchper 2000BTUH

Maybe in and CombinationShown

MinimumFreeArea RequiredforEach Opening

BTUH

Input HorizontalDuct

Rating (2,000BTUH)

VerticalDuctor openings

to outside

(4,000BTUH)

50,000 25sq. in. 12.5sq. in. 75,000 37.5 sq. in. 18.75sq. in.

100,000 50 sq. in. 25 sq. in. 125,000 62.5sq. in. 31.25 sq. in. 150,000 75 sq. in. 37.5sq. in.

Round

Duct

(4,000 BTUH)

4 _

5 _

7" 7"

EXAMPLE: Determining Free Area

Appliance 1 Appliance 2 Total Input

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

Appliance 1 Appliance 2 Total Input

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

One permanent opening, commencing within 12" of the top of the enclosure, shall be permitted where the equipment has clear- ances of at least 1" from the sides and back and 6" from the front

of the appliance. The opening shall directly communicate with the outdoors or shall communicate through a vertical or horizontal duct to the outdoors or spaces (crawl or attic) that freely communi-

cate with the outdoors, and shall have a minimum free area of:

• 1 sq. in per 3000 Btu per hr. of the total input rating of all equipment located in the enclosure, and

• Not less than the sum of the areas of all vent connectors in

the confined space.

GableVent

AboveInsulation Air (1)

"1_ Air (2)

Air (1)

inlet

SoffitVent

inlet

UnconfinedSpaceInstallation

Poison carbon monoxide gas Hazard. Most homes will require additional air.

An unconfined space or homes with tight construction

may not have adequate air infiltration for proper

combustion and ventilation of flue gases.

Failure to supply additional air by means of ventilation

grilles or ducts could result in death and/or personal

injury.

An unconfined space is defined as an area having a minimum vol- ume of 50 cubic feet per 1,000 Btuh total input rating for all gas appliances in area. Refer to Table 2 for minimum area required.

Ta_i_ _ Unconfined Space

Minimum Area in Square Feet

BTUH Input Minimum Area in Square Feet

Rating

50,000 312

78,000 490 114,000 712 155,000 958

EXAMPLE: NOTE: Square feet is based on 8 foot ceilings.

28,000BTUH X 50CubicFt. = 1,400 = 175Sq. Ft.

1,000 8' Ceiling Height

NOTE: Refer to definitions in section titled Unusually Tight

Construction. If any one of the conditions apply, the space MUST be considered confined space regardless of size.

1. Adjoining rooms can be considered part of an unconfined area if there are openings without doors between rooms.

44001 201202 E_

Page 10

2. Anatticorcrawlspacemaybeconsideredanunconfined spaceprovidedthereareadequateventilationopeningsdi- rectlytooutdoors.OpeningsMUST remain open and NOT

have any means of being closed off. Ventilation openings to outdoors MUST be at least 1" square of free area per 4,000 BTUH of total input rating for all gas appliances in area.

3. Install air intake a minimum of 12" above maximum snow level and clear of any obstruction. Duct or ventilation open-

ing requires one square inch of free area per 4,000 BTUH of total input rating for all gas appliances in area.

4. Air inlet MUST be screened with not less than 1/4" mesh screen.

Unusually Tight Construction

In unconfined spaces, infiltration may be adequate to provide air

for combustion, ventilation and dilution of flue gases. However, in

buildings with unusually tight construction, additional air MUST be provided using the methods described in section titled Con-

fined Space Installation:

4. Vent and Combustion Air Piping

Poison carbon monoxide gas, fire and explosion hazard.

Read and follow all instructions in this section. Failure to properly vent this furnace can result in death,

personal injury and/or property damage.

DualCertified(*gMPT& *gMPV Models)

This furnace is certified as a category IV appliance. This furnace

can be installed as a direct vent furnace using outside air for com- bustion or the furnace can use air from inside the structure for

combustion. The INLET air pipe is optional. If combustion air comes from inside the structure, adequate make up air MUST be provided to compensate for oxygen burned. See Confined

Space Installation in the Combustion and Ventilation Air

chapter. If combustion air is drawn from outside the structure, it MUST be taken from the same atmospheric pressure zone as the

vent pipe.

ContaminatedCombustionAir

Installations in certain areas or types of structures will increase

the exposure to chemicals or halogens that may harm the fur-

nace.

The following areas or types of structures may contain or have ex-

posure to the substances listed below. The installation must be evaluated carefully as it may be necessary to provide outside air

for combustion.

• Commercial buildings.

• Buildings with indoor pools.

• Furnaces installed in laundry rooms.

• Furnaces installed in hobby or craft rooms.

• Furnaces installed near chemical storage areas.

• Permanent wave solutions for hair.

• Chlorinated waxes and cleaners.

• Chlorine based swimming poo! chemicals.

• Water softening chemicals.

• De-icing salts or chemicals.

• Carbon tetrach!oride.

Unusually tight construction is defined as: Construction with

1. Walls and ceilings exposed to the outside have a continu- ous, sealed vapor barrier. Openings are gasketed or

sealed and

Doors and openable windows are weather stripped and

Other openings are caulked or sealed. These include joints around window and door frames, between sole plates and

floors, between wall-ceiling joints, between wall panels, at penetrations for plumbing, electrical and gas lines, etc.

VentilationAir

Some provincial codes and local municipalities require ventilation or make-up air be brought into the conditioned space as replace- ment air. Whichever method is used, the mixed return air temper- ature across the heat exchanger MUST not fall below 60 °F or flue gases will condense in the heat exchanger. This will shorten the life of the heat exchanger and possibly void your warranty.

• 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.

VentandCombustionAirPipingGuidelines

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 Special Instruction For Horizon-

tal 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 /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.

1 ,,

[_ 44001 2012 02

Page 11

10.AllverticalpiperunsMUSTbesupportedeverysixfeet whereaccessible.

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

the inlet orthe outlet. With the Concentric Vent Termination Kits (NAHA001CV or NAHA002CV), 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° R or where radiated heat

from adjacent surfaces would exceed 140° R

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 fue!) is

vented into the chimney.

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

protrudes.

• The termination clearances shown in Figure 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 nui- sance tripping of the pressure switch.

Piping Insulation Guidelines

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

berglass or equivalent insulation is used it must have a vapor bar- rier. Use R values of 7 up to 10', R- 11 if exposure exceeds 10'. If Fiberglass 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 horizontal vent to get above snow levels, the exterior por-

tion 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.

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

SizingCombustionAirandVent Pipe

Consult Table 3 or Table 4 to select the proper diameter exhaust and combustion air piping. Exhaust and combustion air piping is sized for each furnace Btuh size based on total lineal vent length (on inlet or outlet side), and number of 90 ° elbows required.

1. Double Pipe Installation-If installing as a direct-vent 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 or outlet side), and number of 90 ° elbows required.

2. Single Pipe Installation-if installing as a non-direct vent appliance, (single outlet pipe and no inlet pipe) refer to

Table 3. The table shows the maximum number of elbows allowed with any given pipe diameter and length of run.

3. Use of Elbows-Two 45° elbows can be substituted for one 90° elbow. The elbow or elbows used for vent termination

outside the structure ARE counted, including elbows need- ed to bring termination above expected snow levels. The elbow inside the furnace on the*9MPD IS NOT included in

the count.

Pipe Diameter Table

Single Piping ONLY

50,000 & 75,000 Btuh Furnaces

40' & (5) 90° elbowswith 2" PVC pipeor

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.

Pipe Diameter Table

Dual Piping ONLY

50,000 & 75,000 Btuh Furnaces

40' & (5) 90° elbowswith 2" PVC pipeor

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.

VentTermination Clearances

Poison carbon monoxide gas, fire and explosion hazard.

Inlet and outlet pipes may NOT be vented directly

above each other.

Failure to properly vent this furnace can result in death, personal injury and/or property damage.

1. Determine termination locations based on clearances spe- cified in following steps and as shown in Figure 7, Figure 14, through Figure 21.

44001 201202 [_

Page 12

For "Concentric Termination Kit" clearances, see Figure 41, Figure 42, Figure 43, Figure 44 and Figure 45 in "Section 10"

in this manual.

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, regulator, and any relief equipment. These distances apply ONLY to U.S. installa-

tions.

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 Fuel Gas Code takes prece- dence over the preceding termination instructions.

1 Vent Termination Clearances

(United States Only)

In Canada See Canadian Fuel Gas Code

Other Than

OtherThan DirectVent

Terminal

primed by pouring water into the vent drain side of the trap. Re- move the small plastic cap and clamps from the unused drain stub on the vent drain side of the condensate trap. Connect a section of the 5/8" OD hose with a funnel to the drain stub and pour eight (8) ounces of water into the trap. Remove the hose and replace the plastic cap and clamp. This will prime both the vent and the transi- tion sides of the 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 (nomi- nal 5/8" O.D.) or viny! 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 t/4" per foot downward slope to- ward the drain. 1/4" per foot is recommended. Installation of an overflow line is recommended when the t/4" per foot slope to the condensate drain cannot be maintained. See Figure 1 for proper routing and installation of the overflow.

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

Frozen water pipe hazard. When activated an auxiliary safety switch will cause a

furnace not to operate.

During freezing temperatures the water pipes in your home could freeze and burst causing water damage to

the home. Do not leave the home unattended during freezing

temperatures, or shut off the water supply and drain the pipes before leaving.

OirectVent

Terminal

50,000Btuh

ortess

OtherThan DirectVent Forced Air

Terminal 1 2" Inlet

Direct VentTerminal

MoreThan 50,000Btuh

10-11-35

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 fitting. The drains connect to the externally mounted condensate

drain trap on the left or right side of the furnace. The startup of a new furnace will involve a cycle or two of the 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

connected to the plastic transition box due to condensate buildup. After the trap is primed, the condensate will start draining from the furnace. The combustion blower will clear out any remaining con-

densate in the blower housing through the vent fitting down-

stream of the blower. Note that the condensate trap can also be

If possible DO NOT route the drain line where it may freeze. The drain line must terminate at an inside drain to prevent freezing of the condensate and possible property damage.

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

densate pump must be approved for use with acidic condensate.

A plugged condensate drain line or a failed condensate pump will allow condensate to spill. If the furnace is installed where a condensate spill could cause damage, it

is recommended that an auxiliary safety switch be installed to prevent operation of the equipment in the event of pump

failure or plugged drain line. If used, an auxiliary safety switch should be installed in the R circuit (low voltage)

ONLY.

CondensateDrainTrapFreezeProtection

Special precautions MUST be made if installing furnace in an area which may drop below freezing. This can cause improper op- eration or damage to the equipment. If the the furnace environ- ment 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.

[_ 44001 2012 02

Page 13

iiiiiiiiiiiiiiiiiiiiiii;iii_i!!ii!iiiiiiiiiiili!iii!iiiiiiiiiiiiiii_i¸!_!_!_!_i_!_!iiii!i!!i!i_ii_ii_i_!_i_i_iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii_i_

Upflow Installations (Dual Certified *9MPT & *9MPV-A2 Models)

YellowPlastic Cap

& Clamps

VentPipeGrommet

COcu%,;o GasP,ps

CombustionBlower

VentPipe

Air

Supply X

90° Street

Elbow

5/8"Hose& Clamps

PlasticCap

NOTE: TRAP MUST BE PRIMED BEFORE OPERATION

TOPVenting

(

CombustionAir

_Pipe (optional)

Air Intake

J Coupling

_ PlasticCap

./ Some Modelshave

_- Hose, Blower

PressureSwitch, Blower

20_ to 30_

one pressureswitch

PressureSwitch

PressureSwitch Hose,Transition

TrapConnection "Clampears"

CondensateTrap& Gasket (LeftorRightSide)

nted OUT

Preassemble&

insertintofurnace

UpflowInstallations- (Dual Certified*9MPT&

Note: For easier installation of the drain hoses and clamps to the

condensate trap, follow the directions outlined below except do not make any clamp connections to any of the drain stubs and

hoses until the hose routing and lengths have been determined. Remove the condensate trap and drain hoses from the furnace

and secure the drain hoses to the drain stubs on the trap with the hose clamps (position the clamps as shown in Figure 8). Install

the condensate trap/hose assembly to the furnace casing. Hook

one side of the "clamp ears" on the drain stub through the hole in

the casing and push the condensate trap into position. Secure

with the two screws. Reconnect the drain hoses to the stubs on

the vent fitting and the plastic transition and secure with the

clamps.

Mount the condensate drain trap in a vertical position to either the left or right side of the furnace using the two screws and gasket

that are provided. If needed, remove the hole plugs from the fur-

nace side panel and relocate to the open set of holes in the oppo- site side panel. NOTE: All gaskets and seals must be in place for sealed combus-

tion applications.

amps Troaxnsition

;,;,.oo°/ /

PressureSwitch,

Transition

Return Air

*9MPV) (See Figure 8)

Ensure that the vent fitting and the 90 ° street elbow are securely attached to the combustion blower using the clamps.

Plug the upper drain stub on the vent fitting with the yellow plastic cap.

Glue the 11" section of PVC pipe to the 90° street elbow after checking the fit up. (Follow the procedures outlined inthe Joining Pipe and Fittings section of this manual, page 30.) The PVC pipe will extend through the top panel about 1 /2' • Connect the rubber coupling to the end of the 11"section of PVC pipe using the clamp. Note: There will be some misaligment of the PVC pipe inside the furnace. The rubber coupling will straighten out the misalignment at the vent pipe connection at the top of the furnace.

For left side venting, remove 90° street elbow from the vent fitting by loosening the clamp on the vent fitting. Securely attach vent fitting to combustion blower.

NOTE: For left side venting, the vent fitting MUST be installed with the airflow marking arrow pointed toward the vent pipe, with the drain stub at a 20° to 30 ° downward slope.

This configuration allows left side venting from the furnace. If right side venting isrequired, the combustion blower must be relocated on the plastic transition box. Remove the four(4) screws that se-

1 ,

44001 201202 [_

Page 14

curetheblowertothetransition.Rotatetheblower180°andse- curewiththefour(4)screws.Usecautiontonotovertightenthe

screwstopreventstrippingoutoftheplasticmountingholes.

NOTE: For right side venting, the vent fitting MUST be installed with the airflow marking arrow pointed toward the vent pipe, with

the drain stub at a 5° to 10° downward slope. (See Figure 9)

Plug the upper drain stub on the vent fitting with the yellow plastic cap.

For left side mounted condensate trap, connect the 3/4" OD rub-

Upflow Installations (Dual Certified *9MPT & *9MPV-A2 Models)

ber hose with the 90 ° bend to the large drain stub on the conden- sate trap and secure with a 3/4" clamp.

Route the hose to the drain stub on the bottom of the plastic transi- tion box. Cut off excess hose and discard. Connect the hose to

the drain stub on the transition and secure with a 3/4" clamp. For right side mounted condensate trap, connect the 3/4" OD rub-

ber hose with the 90 ° bend to the bottom of the plastic transition box and secure with a 3/4" clamp.

Route the hose to the large drain stub on the condensate pump. Cut off excess hose and discard. Connect the hose to the drain

stub on the condensate trap and secure with a 3/4" clamp.

DRAIN SIDE VIEW

Rotate downward

RIGHT Side Venting

_ SupplyAir

NOTE: TRAP MUST BE PRIMED BEFORE OPERATION

SomeModels

have one

pressureswitch

Vent

Drain

TrapConnection

"Clampears"

ointedOUT

eassemble

andinsert intofurnace

For left or right side mounted condensate trap, the pressure

tap on the condensate trap MUST be connected to the unused

pressure tap located on the upper right hand corner ofthe plastic transition box. Remove the plastic caps from the pressure taps on the condensate trap and the plastic transition and connect with

the 5/16" OD rubber hose. (See Figure 8 and Figure 9)

Connect the 5/8" OD rubber hose with the 90 ° bend to the lower

[_ 44001 2012 02

drain stub on the vent fitting and secure with a 5/8" clamp. Route the hose to the small drain stub on the condensate trap. Cut

off excess hose and discard. Connect the hose to the drain stub on the trap and secure with a 5/8" clamp.

NOTE: Ensure hoses maintain a downward slope to the conden- sate trap with no kinking or binding for proper condensate drain-

age.

Page 15

iiiiiiiiiiiiiiiiiiiiiiiiiiii i ii i! 'ii ii!ii!ii!ii!!ii !i i ili ii ii ii ii ii ii ii ii ii ii ii

Horizontal Left Installations (Dual Certified *9MPT & *9MPV-A2 Models)

Vent Pipe

Supply Air

VentFitting _ Clamps

CombustionAir SomeModels

Pipe,(optional) haveone

Air Intake PressureSwitch TransitionBox PressureSwitch,

Coupling Hose,Blower Blower

NOTE: TRAP MUST BE PRIMED BEFORE OPERATION

PressureSwitch,

Transition

_ Combustion

5/8" Hose

& Clamps ipe

Condensate Trap&Gasket Line

Grommet

j_ Blower

PressureSwitch Hose,

Transition

3/4.

__ Hose&Clamps

Coupling& Clamps HorizontalTrapConnection

90° Street Elbow

Preassembleand insert intofurnace

Return

Air

dwg25-24-00b

PointedOUT

HorizontalLeftInstallations- (Dual Certified*9MPT&*9MPV-A2 Models)(See Figure 10)

Note: For easier installation of the drain hoses and clamps to the

condensate trap, follow the directions outlined below except do

not make any clamp connections to any of the drain stubs and

hoses until the hose routing and lengths have been determined.

Remove the condensate trap and drain hoses from the furnace

and secure the drain hoses to the drain stubs on the trap with the

hose clamps (position the clamps as shown in Figure 10). Install the condensate trap/hose assembly to the furnace casing. Hook

one side of the "clamp ears" on the drain stub through the hole in the casing and push the condensate trap into position. Secure

with the two screws. Reconnect the drain hoses to the stubs on the vent fitting and the plastic transition and secure with the

clamps.

Relocate the plastic cap and clamp on the condensate drain trap from the vertical transition drain stub to the horizontal transition

drain stub. Secure the clamps tightly to prevent condensate leak-

age. Do not change the cap and clamp on the vent drain stub.

Mount the condensate drain trap in a vertical position to the left

side of the furnace using the two screws and gasket that are pro- vided. Note: The condensate trap will be located under the fur-

nace in a vertical position when the furnace is placed horizontally

on the left side. If needed, remove the hole plugs from the furnace

side panel and relocate to the open set of holes in the opposite

side panel.

NOTE: All gaskets and seals must be in place for sealed combus- tion applications.

Remove the 90 ° street elbow and vent fitting from the combustion

blower by loosening the clamps on the vent fitting. Connect the

90 ° street elbow to the combustion blower using the rubber cou-

pling and clamps. Glue the 11" section of PVC pipe to the 90 °

street elbow after checking the fit up. (Follow the procedures out-

lined in the Joining Pipe and Fittings section of this manual, page

30.) The PVC pipe will extend through the top panel about 1112". Connect the vent fitting to the end of the 11" section of PVC pipe using the clamp.

NOTE: The vent fitting MUST be installed with the airflow marking arrow pointed toward the vent pipe, with the drain stub at a 20 to 30 ° downward slope.

Plug the upper drain stub on the vent fitting with the yellow plastic cap.

Connect the 5/8" OD rubber hose with the 90 ° bend to the lower drain stub on the vent fitting and secure with a 5/8" clamp.

Route the hose to the horizontal drain stub on the condensate trap. Cut off excess hoses and discard. Connect the hose to the

drain stub on the condensate trap and secure with a 5/8" clamp. Connect the 3/4" OD rubber hose with the 90 ° bend to the large

drain stub on the condensate trap and secure with a 3/4" clamp. Route the hose to the drain stub on the bottom of the plastictransi-

tion box. Cut off excess hose and discard. Connect the hose to the drain stub on the transition and secure with a 3/4" clamp.

The pressure tap on the condensate trap MUST be connected to the unused pressure tap located on the top of the plastic transition box. Remove the plastic caps from the pressure taps on the con-

densate trap and the plastic transition and connect with the 5/16" OD rubber hose.

NOTE: This will require drilling a 5/16" OD hole in the furnace cas- ing next to the condensate trap.

NOTE: Ensure hoses maintain a downward slope to the conden- sate trap with no kinking or binding for proper condensate drain-

age.

44001 201202 [_

Page 16

Horizontal Right Installations (Dual Certified *9MPT & *9MPV-A2 Models)

Vent Pipe

Yellow Grommet

GasPipe _ @

Plastic

&Clamps _ 2"Section

PVCPipe

90° Street

5/8" Hose

Return

90° Street Elbow

dwg 25-23-55bs & Gasket Hose,Transition

&Clamps

Some Models Blower Hose,Blower haveone

pressureswitch ' Hose & Clamps

Combustion Blower

CombustionBlower_

Mountin(

PressureSwitch_

Transition

CondensateTra PressureSwitch

Line

Vent Fitting

[

()

PressureSwitch

)

VentPipe Grommet

Coupling

HorizontalTrapConnection

/ _ PointedOUT

, z1

° _ ll/Preassembte

Combustion Air Pipe

(Optional)

Supply Air

/ _n_ if_ne_ce

ears"

HorizontalRightInstallations- (DualCertified

Note: For easier installation of the drain hoses and clamps to the

condensate trap, follow the directions outlined below except do

not make any clamp connections to any of the drain stubs and

hoses until the hose routing and lengths have been determined.

Remove the condensate trap and drain hoses from the furnace

and secure the drain hoses to the drain stubs on the trap with the

hose clamps (position the clamps as shown in Figure 11). install the condensate trap/hose assembly to the furnace casing. Hook

one side of the "clamp ears" on the drain stub through the hole in the casing and push the condensate trap into position. Secure

with the two screws. Reconnect the drain hoses to the stubs on the vent fitting and the plastic transition and secure with the

clamps.

Relocate the plastic caps and clamps on the condensate drain trap from the vertical drain stub to the horizontal drain stubs. Se-

cure the clamps tightly to prevent condensate leakage.

Mount the condensate drain trap in a vertical position to the right

side of the furnace using the two screws and gasket that are pro- vided. Note: The condensate trap will be located under the fur-

nace in a vertical position when the furnace is placed horizontally

on the right side. If needed, remove the hole plugs from the fur-

nace side panel and relocated to the open set of holes in the oppo-

site side panel.

NOTE: All gaskets and seals must be in place for sealed combus- tion applications.

Remove the 90 ° street elbow and vent fitting from the combustion

blower by loosening the clamps on the vent fitting. Connect the

90 ° street elbow to the combustion blower using the rubber cou-

pling and clamps. Cut a 2" section of PVC pipe from the PVC pipe

provided with the furnace. Glue the 2" section of PVC pipe to the

90 ° street elbow after checking the fit up. (Follow the procedures

*9MPT& *9MPV)(See Figure 11)

outlined in the Joining Pipe and Fittings section of this manual, page 30.) Connect the vent fitting to the end of the 2" section of PVC pipe using the clamp.

NOTE: The vent fitting MUST be installed with the airflow marking arrow pointed toward the vent pipe, with the drain stub at a 20 ° to 30 ° downward slope.

Plug the upper drain stub on the vent fitting with the yellow plastic cap.

Remove the pressure switch hose from the upper stub on the plastic transition box.

Relocate the plastic caps on the stubs of the plastic transition box from the lower stubs to the upper stubs and secure tightly with the clamps.

Route the pressure switch hose to the lower stub on the plastic transition box. Cut off excess hose and discard. Connect the pres-

sure switch hose to the lower stub on the plastic transition box. Ensure that the hose is routed above the stub on the transition box

so that condensate does not collect in the hose. NOTE: Failure to correctly install the pressure switch hose to the transition can ad-

versely affect the safety control operation. Connect the 3/4" OD rubber hose with the 90 ° bend to the large

drain stub on the condensate trap and secure with a 3/4" clamp. Route the hose to the drain stub on the bottom of the plastic tran-

sition box. Cut off excess hose and discard. Connect the hose to the drain stub on the transition and secure with a 3/4" clamp. Connect the 5/8" OD rubber hose with the 90 ° bend to the lower

drain stub on the vent fitting and secure with a 5/8" clamp. Route the hose to the smaller drain stub on the condensate trap.

Cut off excess hose and discard. Connect the hose to the drain stub on the trap and secure with a 5/8" clamp.

44001 2012 02

Page 17

NOTE:Ensurehosesmaintainadownwardslopetotheconden-

satetrapwithnokinkingorbindingforpropercondensatedrain-

age.

.............................................................................Downflow Installations (Dual Certified *gMPT & *gMPV-A2 Models)

DRAINSIDEVIEW NOTE: TRAP MUST BE PRIMED BEFORE OPERATION

Rotatedownward

2O° to3O° LEFT Side Ventin_

<Z>

ReturnAir

Pressure Switch

Some Models

have one

)ressureswitch

CombustionBlower

Mountin

Hose,Transitio_

RIGHT Side Venting

<Z>

ReturnAir

CombustionBlower

(Rotate180°forL_ftSide)

PressureSwitch, PlasticCap

Transition

Transition Plastic

Yellow

\ Box\

PressureJ Switch

Hose, Blower

&Clamps 518"Hose&

Clamps

Air Intake Coupling

Combustion Air Pipe,(Optional)

I _ Pipe

--Grommet

VentFitting & Clamps

PlasticCaps

Condensate Trap& Gasket

Grommet

VentPipe

SupplyAir

<Z>

dwg25-23-562s

Preassembte& insertinto furnace

DownflowInstallations-

Note: For easier installation of the drain hoses and clamps to the

condensate trap, follow the directions outlined below except do

not make any clamp connections to any of the drain stubs and

hoses until the hose routing and lengths have been determined.

Remove the condensate trap and drain hoses from the furnace

and secure the drain hoses to the drain stubs on the trap with the

hose clamps (position the clamps as shown in Figure 12). install

44001 201202 [_

(DualCertified*9MPT&*9MPV Models)(See Figure 12)

the condensate trap/hose assembly to the furnace casing. Hook one side of the "clamp ears" on the drain stub through the hole in the casing and push the condensate trap into position. Secure

with the two screws. Reconnect the drain hoses to the stubs on the vent fitting and the plastic transition and secure with the

clamps.

TrapConnection

Page 18

Mountthecondensatedraintrapinaverticalpositiontoeitherthe

rightorleftsideofthefurnaceusingthetwoscrewsandgasket thatareprovided.Ifneeded,removetheholeplugsfromthefur-

nacesidepanelandrelocatedtotheopensetofholesintheoppo-

sitesidepanel.

NOTE:Allgasketsandsealsmustbeinplaceforsealedcombus- tionapplications.

For both right and left side vent, remove the 90 ° street elbow from the vent fitting by loosening the clamp on the vent fitting.

Ensure that the vent fitting is securely attached to the combustion

blower using the rubber coupling and clamps. This configuration allows left side venting from the furnace. If the

right side venting is required, the combustion blower must be relo-

cated on the plastic transition box. Remove the four(4) screws that secure the blower to the transition. Rotate the blower 180 °

and secure with the four(4) screws. Use caution to not over tight-

en the screws to prevent stripping out of the plastic mounting

holes.

NOTE: The vent fitting MUST be installed with the airflow marking

arrow pointed toward the vent pipe, with the drain stub at a 20° to

30° downward slope.

Plug the upper drain stub on the vent fitting with the yellow plastic

cap.

Remove the pressure switch hose from the upper stub on the

plastic transition box.

Relocate the plastic caps on the stubs of the plastic transition box from the lower stubs to the upper stubs and secure tightly with the

clamps.

Route the pressure switch hose to the lower stub on the plastic transition box. Cut off excess hose and discard. Connect the pres-

sure switch hose to the lower stub on the plastic transition box.

NOTE: Failure to correctly install the pressure switch hose to the transition box can adversely affect the safety control operation.

Connect the 3/4" OD rubber hose with the 90 ° bend to the drain

stub on the bottom of the plastic transition box and secure with a

3/4" clamp.

Route the hose to the large drain stub on the condensate trap. Cut

off excess hose and discard. Connect the hose to the drain stub

on the transition and secure with a 3/4" clamp.

Connect the 5/8" OD rubber hose with the 90 ° bend to the lower

drain stub on the vent fitting and secure with a 5/8" clamp.

Route the hose to the smaller stub on the condensate trap. Cut off

excess hose and discard. Connect the hose to the drain stub on the trap and secure with a 5/8" clamp.

For left side or right side mounted condensate trap, the pres-

sure tap on the condensate trap MUST be connected to the un-

used pressure tap located on the top of the plastic transition box.

Remove the plastic caps from the pressure tap on the condensate trap and the plastic transition and connect the 5/16" OD rubber

hose. (See Figure 12)

NOTE: Ensure hoses maintain a downward slope to the conden- sate trap with no kinking or binding for proper condensate drain-

age.

Connecting Ventand Combustion Air Piping

Poison carbon monoxide gas hazard. Cement or mechanically seal all joints, fittings, etc. to

prevent leakage of flue gases. Failure to properly seal vent piping can result in death,

personal injury and/or property damage.

Refer to the Figure 8 through Figure 12 that corresponds to the installation position of the furnace for the application.

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

CombustionAir PipeConnection (Dual Certified or

Direct Vent)

Install the air intake coupling and gasket to the furnace with the four(4) screws. (See Figure 8 through Figure 12) Note: The air intake coupling and gasket can be installed to the

top panel to the alternate air intake locations on either the left or right side panels of the furnace.

For downflow installation, the air intake coupling and gasket must

be installed to the alternate air intake location on either the left or right side panels. Remove the 3" hole plug from the side panel and relocate to the air intake hole in the top panel. Use the 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 ole in the furnace panel. See Figure 8 through Figure 12.

The vent pipe grommet is sized for 2" PVC pipe. Install the vent pipe to the vent fitting on the combustion blower

using the clamp.

Note: The vent fitting MUST be installed with the air flow marking arrow pointed toward the vent pipe. (See Figure 13) Some installations require the vent fitting to be installed with a 20 to 30 ° downward slope. (See Figures 8 - Figure 12)

[_ 44001 2012 02

Page 19

Proper Sealing Procedure for

Combustion Blower

_--_-_Vent Pipe

RubberCoupling &Clamps_-_

90 ° Street

Elbow

VentPipe _'_ (Side PanelEXit)

DRAIN SIDE VIEW

_((. ,_ (TopPanel Exit)

11"Section PVC pipe

R_otate downward

to 30°

&Clamps

Combustion Blower

25-23-35

Joining Pipe and Fittings

Fire hazard. 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. Observe all cautions and warnings printed on material

containers to prevent possible death, personal injury and/or property damage.

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 Ameri-

can National Standard Institute and American Society for Testing

and Materials (ANSI/ASTM) standards.

• PipeandFittings -ASTM D1785, D2241, D2466, D2661, D2665, F-891, F-628

• PVC Primer and Solvent 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 it joins to

the furnace. PVC, CPVC, ABS, and Cellular Core pipe and ce-

ment may be used on all other joints.

CAUTION

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.

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 apply a heavy coat of cement to the pipe end and insert pipe into fittings with a slight twisting movement until it bot-

toms 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.

ConnectingVent Pipesand Termination

NOTE: Combustion air intake and vent MUST terminate in the

same atmospheric pressure zone. If installation is in a cold cli- mate (sustained temperatures below 0° F), increase the minimum distance between vent pipe and air intake from 8" to 18".

CAUTION

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.

I Poison carbon monoxide gas hazard. I

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

Failure to properly vent this furnace can result in death, I personal injury and/or property damage. |

install all couplings, nipples and elbows using proper pro- cedures for Joining Pipe and Fittings and maintain spac- ing between vent and combustion air piping as indicated in Figure 14 through Figure 21.

iiiiiiiiiiii_ii_i!i_i_i_i;i;!ii!iiiiiiiii_i_i_!_i_i_i_i_i_i_i:_;iii;i_;i;i_li_i!!_!_!i_i_i_i_iil_i_iiiiiiiiiiiiiiiiii_ii!i_ii!i!!_!iii_i_i_

Sidewall Termination 12" or More Above Snow Level or Grade Level

8" * '18, Minimumfor c01dclimates

MIN (substainedbelow05F)

44001 201202 [_

Page 20

HorizontalTermination

Cut two holes. 2t/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 combus-

tion air piping as indicated in Figure 14 and Figure 15.

A metal shield is recommended 18" x 18" min. or 18" min. diame- ter around the vent termination at the exterior wall to protect the

house exterior materials from flue product or condensation (freez- ing) damage.

Using Exterior Risers

1. Install elbows and pipe to form riser as shown in Figure 15.

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 resis- tant closed cell foam insulation or Fiberglass insulation if

boxed in and sealed against moisture.

Sidewall Termination with Exterior

Risers to Get Above Snow Level or Grade Level

8" *

MIN,

MAX j

20' _

'18, Minimumforcold climates

(substainedbelow05 F)

2. If the vent system is installed in an existing chimney make sure clearances shown in Figure 16 are maintained. Hori-

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

Roo,topTerm,nat,on

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.

VentTermination 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 be- fore attaching the vent terminal.

MultiVent TerminationClearances

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 17, Figure 18, Figure 19, Figure 20, Figure 21 and Figure 22, but the next vent termination must be at least 36" away

from first 2 terminations. It is important that vent terminations be made as shown to avoid recalculation of flue gases.

Concentric Vent and Combustion-Air

Roof Termination

i I _ __E LEVEL

_5-0C_O4F

Vertical Termination

Figure 16 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.

[_ 44001 2012 02

12" Min. Gradei

or Snow Level

Combustion

Air

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

Page 21

Concentric Vent and Combustion-Air Sidewall Termination

I R°°ft°p Inlet Vent and Exhaust-Air Ter"mination

18" ain, for Cold Climates

(Sustained Below 0° F)

Inlet 20' Max,

8" Min. \

Vent 25-22-02d

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

Exhaust

Sidewall Inlet Vent and Exhaust-Air Ter-

mination

20' Max,

12" Min. Grade j_

or Snow Level

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

iiiiiiiiiiiil;ii¸i;iiiiiiiiiiiiil;i;i;i;ii;iii;i;iiii;i;;;i!i!!;;;;;i;i;i;i;i;i!i;iil_iiiiiiiiiiiiiiil!!i!i

_> 18" Min, forCold Climates

(Sustained Below 0° F)

Sidewall Inlet Vent and Exhaust-Air Ter-

...........................................................................mination with Exterior Risers

8" Min,

12" Min, Exhaust Grade or Snow Level

iii_i!_iiiiiiiiiii!ii_iiii!!i!!!!!!ii!iii!iiiiiiiii¸i;;iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiill

RecommendedA,ternate,nsta,,ation,or

Sustained Cold Weather

.............................................................................(-0 ° F & below)

EXH_T _Z3

INLET

12" MIN.Ground Level

_OR_ "_ Snow Level

25-22-43

25-23-73

18" Min. for Cold Climates

(Sustained Below 0° F)

8" Min.

12" Min, Grade or

Inlet Snow Level

FRONT VIEW

SameJoist

SIDE VIEW

12"MIN,

Space

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

44001 201202 [_

Page 22

5. Gas Supply and Piping

Poison carbon monoxide gas, fire and explosion hazard.

Models designated for Natural Gas are to be used with Natural Gas Only, unless properly converted to use

with LP gas. Failure to properly vent this furnace can result in

death, personal injury and/or property damage.

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 rat- ing plate.

SupplyPressure

Fire hazard. Do NOT set input rating above that shown on rating

plate. Failure to properly set input pressure can result in

death, personal injury and/or property damage.

1. Supply pressure can be checked using the 1/8" NPT port on 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 5 for normal gas supply and manifold pressures.

GasSupplyPressure

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

ManifoldGasPressureAdjustment(Hi&LoFire)

NOTE: Make adjustment to manifold pressure with burners oper-

ating.

Fire or explosion hazard. Turn OFF gas at shut off before connecting

manometer. Failure to turn OFF gas at shut off before connecting

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

1. Remove the burner compartment door.

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

3. Replace the burner compartment door.

General DeraUngRules

For operation with natural gas at altitudes above 2,000', orifice change and/or manifold pressure adjustment may be required to suit gas supplied. Check with gas supplier. If orifice sizing is needed, it should be based on reducing the input rating by 2% (natural) or 4% (LP) for each 1,000' above sea level. See Table 6 and Figure 23 for required pressure change and/or orifice change for high altitudes.

Gas Pressures Below 2000 Ft.

Gas

Type

Natural 7"

LP 11"

Important Notes

Supply Pressure Manifold

Recom-

mended

(1.7 kPa)

(2.7 kPa)

Max, Min,

14" 4.5" 1.7"

(3.5 kPa) (1.1 kPa) (0.5 kPa)

14" 11" 4.9"

(3.5 kPa) (2.7 kPa) (1.3 kPa)

Pressure

Hi Fire

3.5"

(0.9 kPa)

10"

(2.5 kPa)

Lo Fire

• With Propane gas, the rated input is obtained when

the

BTU content is 2,500 BTU per cubic foot and man-

ifold

pressure set at 10" W.C.

• If Propane gas has a different BTU content, orifices

MUST be changed by licensed Propane installer.

• Measured input can NOT exceed rated input.

• Combustion Air Box Cover MUST be removed

when adjusting manifold pressure.

• Any major change in gas flow requires changing

burner orifice size.

[_ 44001 2012 02

Page 23

MANIFOLD PRESSUREAND ORIFICESIZE FOR HIGH ALTITUDEAPPLICATIONS

Ta_i_ _ High Altitude Pressure Chart

Heat Value

Btu/Ou. Ft.

8O0 850

9O0

950 1000 1050

1100

Orifice Size

2000-8000 ft.(Natural Gas)

0-1999

High Low

3.5 1.7

3.2 1.6

2.9 1.4 #42

2000-2999

High Low

3.5 1.7

3.4 1.7

3.1 1.5

2.8 1.4 #42

3000-3999

High Low

3.5 1.7

3.3 1.6

3.0 1.5

2.7 1.3 #42

Elevation Above Sea Level

4000-4999

High Low

3.5 1.7

3.2 1.5

2.9 1.4

2.6 1.3 #42

5000-5999

High Low

3.5 1.7

3.3 1.6

3.0 1.5

2.7 1.3

2.5 1.2 #42

6000-6999

High Low

3.5 1.7

3.2 1.6

2.9 1.4

2.6 1.3

2.4 1.2 #42

7000-7999

High Low

3.5 1.7

3.4 1.7

3.1 1.5

2.8 1.4

2.5 1.2

2.3 1.1 #42

2. For operation with LP gas at altitudes above 2,000', gas ori- fices MUST be changed and manifold pressure MUST be

maintained as per Table 5. Orifice sizes for 0-2000' above

sea level are #54. 2000-7000' above sea level, use #55. 7000-8000' above sea level, use #56 orifices. Orifices can be ordered through your distributor, (See Figure 23)

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

HighAltitude AirPressureSwitch

Altitudes over 4,000' 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.

ChangingOrificesfor HighAltitude

Electrical shock, fire or explosion hazard.

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.

Failure to properly install orifices can result in death,

personal injury and/or property damage.

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

1. Disconnect gas line from gas valve.

2. Remove manifold from furnace,

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

4. Tighten orifices so it is seated and gas tight, (See Figure 23)

Changing Orifices

Measure from face of ori-

/ 1'_ ._1 ficetothebacksideofthe

11/6te13/10

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

44001 201202 [_

Page 24

lz,p,ca,OasP,p,o0,orUp,,ow

Drip Leg and Union, Union* should be outside the cabinet. Manual shut-off valve MUST be upstream of dripleg, union, and furnace.

Use elbows and 3" pipe nip-

ple to connect valve to "

ing when using right side

gas pipe entry.

3" pipe nipF

LP Low pressure switch. Optional on

some models.

25-23-84

* Union may be installed inside the cabinet when necessary because of clearances.

Gas Pipe Grommet

(Single Pipe

25-23-37a

NaturalGasInput RatingCheck

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 Ex- ample.

3. Repeat steps 1 and 2 with jumper wire on R to W2 for low fire.

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

Natural Gas No. of Se- Time Per Cu- BTU Per BTU Content conds bic Hour

Per Hour Foot in Se-

conds

1,O00 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.

[_ 44001 2012 02

Page 25

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Typical Gas Piping for Downflow

Use elbows and 3" pipe nipple to connect

valve to piping when using left side gas pipe

entry.

LP Low pressure swit 1.

Optional LP conversion.

Drip Leg and Union, Union* should be outside the cabinet. Manual shut-off valve MUST be up- stream of dripleg, union, and furnace.

*Union may be installed inside the cabinet when necessary because of clearances.

Gas Pipe (Single Pipe)

25-23-39

GasPiping Requirements

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.

Install correct pipe size for run length and furnace rating.

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

NOTE: Refer to Figure 24 or Figure 25 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 pane!.

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

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

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

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

Additional LP Connection Requirements

1. Have a licensed LP gas dealer make all connections at storage tank and check all connections from tank to fur-

nace.

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.

FinalCheck

1. The furnace and its individual shut-off valve must be discon- nected from the gas supply piping system during any pres-

sure testing of that system at test pressures in excess of

1/2" PSIG.

The furnace must be isolated from the gas supply piping system by closing its individual manual shut-off valve dur- ing any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2" PSIG.

2. Test all pipes for leaks.

3. Gas pressure MUST NOT exceed t/2" PSIG to gas valve. Checking gas piping above 1/2" PSIG requires the furnace

and manual shut-off valve to be disconnected during test- ing.

4. Apply soap suds (or a liquid detergent) to each joint. Bubbles forming indicate a leak.

5. Correct even the smallest leak at once.

If orifices were changed, make sure they are checked for leakage.

44001 201202 [_

Page 26

6. Electrical Wiring

Electrical shock hazard.

Turn OFF electric power at fuse box or service panel before making any electrical connections and ensure a proper ground connection is made before connecting line voltage.

Failure to do so can result in death, personal inju-

ry and/or property damage.

PowerSupplyWiring

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 NFPA 70 and/or

The Canadian Electric Code CSA C22.1.

Field wiring connections must be made inside the furnace con- nection box. A suitable strain relief should be used at the point the

wires exit the furnace casing. Copper conductors must be used. Line voltage wires should be

sized for the input amps stated on the rating plate. Furnace should be connected to its own separate circuit.

Thermostat

The 2-stage furnace control will operate with either a single stage

or a two stage heating thermostat and will provide 2-stage heat- ing operation. For single stage thermostat installations, the R and

W wires from the thermostat connect to the R and Wl connec-

tions on the furnace control. Note: The fourth (4th) DIP switch

must be in the off position, failure to change DIP switch wi!! result in Lo Fire ONLY operation. (See furnace wiring digram) See "Fur-

nace Wiring Diagram" for switch settings. Failure to set DIP switch

will result in Lo fire operation ONLY with single stage thermostat. During operation, the furnace will operate on low fire for 12 minu-

teslf the heat request exists for more than 12 minutes. Ifthe heat

request exists for more that 12 minutes, the furnace will automati- cally 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 set- ting for both types of thermostats.

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

codes, the applicable national codes. Install wiring in accordance with manufacturer's instructions.

Humidifier/ElectronicAir Cleaner

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

CAUTION

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 preset at 140 seconds. Ifdesired, the fan OFF delay can be re- set to obtain the longest delay times while stil! maintaining comfort levels. See "Furnace Wiring Diagram".

Electrical Connections

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

right side.

115V. 60Hz.

Connection

= = BOX

OptionalEquipment

All wiring from furnace to optional equipment MUST conform to

local codes or, in the absence of local codes with the latest edition of The National Electric Code, ANSI NFPA 70 and/or The Cana-

dian 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

Dehumidification- Variable Speed ONLY (*9MPV)

The fan control is wired for 24 VAC normally open (N/O) dehumi-

distat connection. Connect dehumidistat tothe R terminal andthe 1/4" male quick connect Y2 terminal on the fan control (See

Figure 27 and "Furnace Wiring Diagram"). A 20% reduction of cooling airflow will occur when the Y2 dehumidistat terminal is en- ergized during a call for cooling from the thermostat.

[_ 44001 2012 02

ControlCenterFuse

The 24V circuit contains a 5-amp, automotive-type fuse located on fan timer board. (See Figure 27) 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.)

25-23-42a

Page 27

Fan Timer Connections

FUSE

7. Ductwork and Filter

Dip Switch

See "Wiring Diagram" for

switch settings

25-22-44a

Poison carbon monoxide gas hazard. Do NOT draw return air from inside a closet or utility

room. Return air duct MUST be sealed to furnace casing.

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

Installation

NOTE: Design and install air distribution system to comply with

Air Conditioning Contractors of America manuals and/or NFPA

pamphlets 90A and 90B or other approved methods that conform

to local codes and good trade practices.

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

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

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 manual. Manually operated dampers MUST be equipped with a means to prevent furnace or air conditioning operation unless damper is in the full heat or cool position.

Poison carbon monoxide gas hazard.

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

This could result in death, personal injury and/or

property damage.

Connections

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

side, both sides, or the bottom. On horizontal or downflowinstalla- 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 ad- jacent to the living area, the system should be carefully designed

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

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

44001 201202 [_

Page 28

Forsideconnectionsusinga16"x25"filter,cutouttheem- bossedareashowninFigure28.Thiswil!providea141/2" x221/2"approximateopening.

Side Return Air Cutout

A = 141/2" Height of Cutout for 16" x 25" Fil- ter

B = 221/2 " Width of CutoL t for 16" x 2_'

ter

Embossed Area on Side

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 panel in the furnace base. Do NOT remove knock-out ex- cept 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.

Fur- nace Bot- tom

Use either filter type:

• Washable, high velocity filters are based on a maximum air flow rating of 600 FPM.

• Disposable, low velocity filters are based on a maximum air flow of 300 FPM when used with filter grille.

NOTE: Disposable, low velocity filters may be replaced with washable, high velocity filter providing they meet the minimum size areas. Washable, high velocity filters can be replaced ONLY with same type and size.

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 30.

Bottom Mounted Filter Rack

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 minimum 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.

AW3192

Slide filter clips towards back before removing

Refer to Figure 31 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 31, available from your distributor.

[_ 44001 2012 02

Page 29

Standoff Filter Rack

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.

Using Optional

Standoff Filter

Rack

25-21-45a

CAUTION

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

AdditionOf 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 coi! location and installation proce- dures. With a parallel flow arrangement, dampers must be installed to prevent chilled air from entering the furnace. If manu- ally operated dampers are used, they must be equipped with a means to prevent operation of either unit unless the damper is in

full heat or full cool position. A 3" clearance is required on the right side of the furnace in order

to run the condensate drain line. Copper, iron or plastic tubing

may be used for the condensate drain line.

DownflowFurnaceInstallation

Non- CombustibleFloor Installation

Fabricate a plenum to the dimensions given in Figure 3, for the

furnace outlet. Plenum should be flanged, approximately 3/4" for

support.

CombustibleFloorInstallation

Fire Hazard. Place furnace on noncombustible subbase on downflow

applications, unless installing on non-combustible

flooring.

Failure to install unit on noncombustible subbase can result in death, personal injury and/or property damage.

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.

Cut the opening in the floor according to Table 7. The hole in the floor must be cut to the dimensions listed in Table 7

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 1t/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 7. Note that the dimensions given are outside dimensions.

44001 201202 [_

Page 30

Subbases for Combustible Floors Dimensions

Subbase for Combustible

Floors Part Number

Subbase for Combustible

Floor Dimensions

H _

J* K**

Furnace Subbaee

NAHH001SB NAHH002SB

NAHH003SB NAHH010SB

151t/16

198/16 225/t6

241t/16

283/4 149/16 16 283/4 183/16 16

283/4 2113/16 16 283/4 239/I6 16

Subbase for Coil Cabinets

NAHH004SB NAHH005SB

NAHH006SB NAHH009SB

151t/16

198/16

243/4

209/t6 149/I6 161/4 209/16 183/16 161/4

209/t6 2113/16 161/4 209/t6 239/I6 161/I6

* 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 32, Figure 33 and Figure 34.

Furnace Subbase

Plenum

Opening In Floor

M N

161/4 145/8 16t/4 181/4

161/4 217/8 161/4 235/8

161/4 145/8 16t/4 181/4

161/4 217/8 161/4 235/8

Opening In Base

Typical Plenum

For Plenum

P R

15 131/2 15 17t/8

15 193/4 15 221/2

15 131/2 15 17t/8

15 193/4 15 221/2

Coil Cabinet Subbase

Plenum

Dimensions

S T

15 131/2 15 171/8

15 193/4 15 221/2

15 131/2 15 171/6

15 193/4 15 221/2

Combustible

Floor Base

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

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

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

25-20-46

A = 41/4" Minimum clearance from back of hole to wall or other

obstruction.

iiiiiiiiiiiiiiiiiiiiiiiiiiii!:ililiiiiliiiiiliiiii!ii¸iiii!i!!!!!!!!;¸_i¸I!!!;;;i¸i iil iill

25-20-46b

Setting the Subbase

Furna0 /J

Insulation of Combustible

Floor Bas

,_ \ _ Floor

woo0 cre

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 35.

[_ 44001 2012 02

Page 31

Condensate Line Raised by Base

25-20-52

8. Checks and Adjustments

Startup

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

tion Manual" or to the "Operating Instructions Label" on the fur- nace.

CAUTION

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

values listed on rating plate. Pressures are usually set by gas sup-

pliers.

Proper Flame /_ Flame Sensor

Adjustment

3/8"to 1/2" _

_ _ "_'_ Hot Surface

__ ...4gniter

Pilot Burner

ManifoldGasPressureAdjustment Main BurnerFlameCheck

NOTE: Make adjustment to manifold pressure with burners oper-

ating.

Fire or explosion hazard. Turn OFF gas at shut off before connecting

manometer. Failure to tu rn OFF gas at shut off before connecting

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

1. Remove the burner compartment door.

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

range.

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

clockwise to increase.

For altitudes up to 2000', set pressure to value shown in Table 5, ± 0.3" (8mm) water column. For altitudes of 2000'

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

Allow the furnace to run approximately 10 minutes then inspect the main burner and pilot flames. See Figure 37.

Check for the following (Figure 37):

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

low tips.

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

• Flames do NOT touch sides of heat exchanger.

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

Main Burner

10-11-65

Adjust Pilot Burner

The furnace has a pilot flame to light the main burner. The flame

should surround 3/8" to 1/2" of the flame sensor. See Figure 36. 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.

44001 201202

10-10-78

TemperatureRiseCheck

The blower speed MUST be set to give the correct air temperature rise through the furnace as marked on the rating plate for both

Page 32

high fire and low fire operation. Temperature rise is the difference between supply and return air temperatures.

To check temperature rise,use the following procedure:

1. Place thermometers in supply and return air registers as close to furnace as possible, avoiding direct radiant heat from heat exchangers.

2. Operate furnace on high fire for 10 minutes with all the reg- isters 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.

4. 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 wil! 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.

ChangingBlowerSpeed(*9MPTModels)

Electrical shock hazard.

Turn OFF power to furnace before changing speed taps.

Failure to do so can result in death and/or personal injury.

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 installer dealer/contractor to select the proper speed taps for the applica-

tion when the unit is installed.

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 8) to determine the blower motor speed settings.

Wire Color

Black

Orange*

Blue

Red

* 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 "Cool" terminal and re-

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

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

Motor Speed

High

Med-High

Medium

Low

If the same speed must be used for both heating and cool- ing, remove the undesired motor speed lead from the "Heat" or "Cool" terminal and connect that lead to the open terminal at "Unused Motor Lead" location. Attach a jump-

er between the "Heat" and "Cool" terminals and the re- maining motor speed lead.

Note: For motors with (4) speed leads, it will be necessary to tape off the terminal of the motor speed lead removed from the "Heat" or "Cool" terminal with electrical tape since an open terminal will not be available atthe "Unused Mo-

tor Lead" location.

ContinuousFanOperation

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 terminal, this will provide low speed blower operation whenever the other two speeds (Heat or Cool) are not energized.

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

tion.

Separatespeed 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 "Cool" terminals.

Heating and Continuous Blower Speed the Same

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

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

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

ChangingBlowerSpeed(*9MPV Models)

Electrical shock hazard.

Turn OFF power to furnace before changing speed taps.

Failure to do so can result in personal injury and/or property damage.

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.

Since the manufacturer cannot establish the static pressure that will be applied to the unit, it is the responsibility of the installer dealer/contractor to select the proper speed taps for the applica-

tion when the unit is installed.

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

1. The 115 VAC power supply to the furnace must be turned OFF before making adjustments to the motor.

2. The heating, cooling and continuous blower speeds can be adjusted by changing the switch settings that are located on the motor control (see Figure 38). Switches #1 and #2 adjust the continuous blower speeds. Switches #3, #4 and #5 adjust the heating speeds. Switches #6, #7 and #8 ad- just the cooling speed. See the"Technica/SupportManua/" for the switch settings for the desired airflow rates for the

installation.

[_ 44001 2012 02

Page 33

Blower Motor Control

ON 1

I 1<_>8 I INPUT

OFF 0 THERMOSTAT

9. Furnace Maintenance

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

It i8 recommended that the furnace be inspected and serviced on an annual basis (before the heating season) by a

qualified service technician,

SIGNAL OR

DIP CONNECTIONS

SWITCHES

25-23-10

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.

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 60 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 Oft Delay time expires following loss of the Heating or Cooling request.

44001 201202 [_

Page 34

Heating (Wl) Request (single stage thermostat operation, 4th DIP switch must be in off position) (see furnace wiringdiagram):

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.

• 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.

Wl 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 Oft Delay expires or the Heat Fan On Delay expires for the new Heating request.

Heating Request(two stage thermostat operation, 4thDIP switch must be in on position) (seefurnace wiring diagram):

24 VAC signals applied to Wl 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 Wl 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 W1 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.

Heating Requestwith 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.

[_ 44001 2012 02

Page 35

GasValve DiagnosticCodes(See Figure39)

OFF = Control not powered Heartbeat = Normal Operation (Standby or call for heat)

1 Flash = Not used 2 Flashes = Low Pressure switch closed when should be open

3 Flashes = 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 oft. After 5-minute delay, a new ignition sequence will be initiated. (Note: SV9541Q On/Oft switch in off position during a call for heat will generate this diagnostic code)

4 Flashes = Limit switch string open 5 Flashes = Flame sensed out of sequence - Flame signal still present.

6 Flashes + 1 Note 1 = Soft Lockout -Maximum retry count exceeded (failed to light within 4 trials for ignition) 6 Flashes + 2 Notes 1,2 = Soft Lockout -Maximum recycle count exceeded - Last failure was Flame Sense Lost During Run, Cycling

Pressure Switch or Blocked Condensate.

6 Flashes + 3 Notes 1,2 = Soft Lockout -Maximum recycle count exceeded - Last failure was Airflow Proving Circuit Opened

During Run

6 Flashes + 4 Notes 1,2 = Soft Lockout -Maximum recycle count exceeded - Last failure was Limit Circuit Opened During Run 7 Flashes = 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. 8 Flashes = High Pressure Switch closed when sould be open. 9 Flashes = 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

On/Off

Manifold

Adjust-

me_t (Hid'd_)

Diagnostic Light (on some mo- dels)

Manifold Pres-

LO sure

_,dju_ment

Pilot

OUTLET

INLET

25-22-49a

INLET

ust-

ment

OUTLET

25-22-25a

44001 201202 [_

Page 36

HONEYWELL SV9541Q "SMART VALVE" Sequence of Operation

I POWER APPLIED TO APPLIANCE I

I THERMOSTAT CALLS FOR HEAT I

I 'TFO ESSO ES 'TO ESTO0 I

COMBUSTION AIR BLOWER

ON HIGH SPEED

HI AND LOW AIR PROVING SWITCHES ,1_1_[ COMBUSTION BLOWER DE-ENERGIZED _ FIVE MINUTE WAIT PERIOD

PROVED CLOSED WITHIN 30 SECONDS?

YES

PRE-PURGE

PILOT VALVE OPENS: THREE SECOND FLAME L..,

IGNITOR POWERED FAILURE RECYCLE DELAY

PILOT LIGHTS AND FLAME IS SENSED _ PILOT VALVE CLOSES;

_q I'-I

DURING 90 SECOND TRAIL FOR I- [ PILOT IGNITOR OFF

IGNITION? (1)

MAIN VALVE OPENS ON HIGH,

IGNITER "OFF"

CIRCULATINGFAN "ON" AND

COMBUSTION AIR BLOWER ON LOW

SPEED. MAIN VALVE ON LOW FIRE

AFTER DELAY (2)

V CIRCULATING AIR FAN OFF

FLAME SENSE LOST? _ PILOT AND MAIN VALVE CLOSE AFTER DELAY

- f

THERMOSTAT CALL FOR HEAT ENDS FLAME SENSE LOST MORE THAN FIVE L__ COMBUSTION AIR BLOWER OFF AFTER

TIMES IN THIS CALL FOR HEAT? JN_ POST PURGE

PILOT AND MAIN VALVE CLOSE I

COMBUSTION BLOWER "OFF" AFTER not lit, itturns back "ON"for the final 30 seconds of the 90 second trial for ignition.

CIRCULATING AIR FAN "OFF" AFTER er and main valve remain on high.

WAtT FOR NEXT CALL FOR HEAT /

'_ (1) Ignitor turns "OFF" about 30 seconds into the trial for ignition. If the pilot flame has

POST PURGE The pilot valve is energized during the entire trial for ignition. This is normal opera-

_' (2) If a W2 call for heat is present, circulating fan on high speed. Combustion air blow-

DELAY NOTE: If main limit string opens and takes longer than 2 minutes to close, system

V goes into 1 hour wait period.

tion for the gas ignition system.

[_ 44001 2012 02

Page 37

HONEYWELL SV9541Q "SMART VALVE" Trouble shooting

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. Last status code indicates repair to address first

LED

STATUS

INDICATES CHECK/REPAIR

LinevoltageinputatL1andNeutralconnectorsonST9162AFanTimer.

Off Nopowerto systemcontrol. Lowvoltage(24V)powerat24VACandCOMterminalsonST9162A

Systemwiringharnessisin goodconditionandsecurelyconnected.

Heartbeat Normalindicationwheneverthesystemispowered,unlesssome Bright- Dim abnormaleventhasoccurred. NotApplicable- NormalOperation(standbyorcallfor heat)

Lowpressureswitchclosedwhenit shouldbeopen Pressureswitchstuck closed(systemwill wait for pressureswitchto

2 Flashes open).

(i.e.whencallfor heat begins). (Combustionbloweris notenergized untilpressure switches

opens) Pressureswitch miswiredorjumpered. Lowpressureswitch,openwhenit shouldbeclosed (i.e.longer

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 HIS 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.

3 Flashes

4 Flashes

5 Flashes

6 Flashes + 1 Flash

than30secondsaftercombustionblower!inducerisenergized).

System goes into5-minute delay period, with combustion blower! inducer off. Atend 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 isde- energized after the "OFF" delay.

After 5-minute delay time, control system will reset and initiate a

new ignition sequence,

SoftLockout.

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.

6 Flashes +

2 Flashes

Last failure was Flame Sense lost during run.

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,

44001 201202 [_

Page 38

HONEYWELL SV9541Q "SMART VALVE" Trouble shooting continued

LED

STATUS

6 Flashes +

3 Flashes

INDICATES CHECK/REPAIR

Soft Lockout.

Last failure was pressure switch

Ignitionsystemcontrolswitchmustbeinthe ONposition.

Maximum recycle count exceeded

Combustion air blower is de-energized, Circulating blower isde- energized after the "OFF" delay.

After 5-minute delay time, control system will reset and initiate a

new ignition sequence, Soft Lockout.

Pressureswitchesoperation,tubing,andwiring. Restrictionsin furnaceairintakeor ventpiping.

Highwindsblowingagainstvent.

6 Flashes +

4 Flashes

7 Flashes

8 Flashes

9 Flashes

Lastfailurewas limitcircuitopenedduringrun.

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) Limittriptooklongerthan2minutestoreset.

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 intoa 5 minute delay period with combustion blower! inducer"OFF". At end of the 5minute delay another cycle begins.

Mainlimitswitch. Limitand rolloutswitchwiringisingoodconditionand securely

connected. Restrictioninduct work.

Dirtyfilter

Deadblower. Blockedductwork.

Pressureswitchesstuckclosed(systemwillwaitfor pressureswitchto open).

Pressureswitchmiswiredorjumpered. Ignitionsystemcontrolswitchmustbeinthe "ON"position.

Pressureswitchoperation,tubingandwiring.

Restrictionsin furnaceairintakeor ventpiping.

[_ 44001 2012 02

Page 39

11. Concentric Termination

Vent Termination Clearances

Poison carbon monoxide gas, fire and explosion hazard.

Inlet and outlet pipes may NOT be vented directly above

each other (standard vent terminals).

Failu re to properly vent this furnace can result in death, personal injury and/or property damage.

Kit Components

Kit Contents:

3" Rain Cap or 2" Rain Cap 3" Diameter SDR-26 Pipe, 191/2" 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

3" or 4" Dia.

1. Determine termination locations based on clearances spe- cified in following steps and as shown in Figure7, Figure 40 through Figure 45.

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 Fuel Gas Code takes prece- dence over the preceding termination instructions.

ConcentricVentTermination- 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 NAHA001CV kit can be used for 3" di- ameter pipe systems. The NAHA002CV kit can be used for 2"

diameter pipe system. Refer to Table 9 for the correct pipe size for

the furnace. Both the combustion air inlet and the exhaust vent

pipes must attach to the termination kit. The termination kit must

terminate outside the structure and must be installed per the

instructions outlined below for vertical or horizontal termination.

Vertical termination is preferred. Field supplied pipe and fittings

are required to complete the installation.

tDR-2°P'Pe

2" or 3" Dia. 2 or 2t/2" Dia. 2" or 3" Dia. Y Concentric Fitting SDR-26 Pipe Rain Cap

Vertical& HorizontalTermination

Determine the pipe diameters required for the installation from Table 9 and Figure 42.

Determine the best location for the termination kit. See Figure 41 for vertical termination or Figure41 and

Figure 45 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 snow and 4) visible vent vapor.

Concentric Vent Roof Installation

Ventz_ Maintain 12" min. clearance

above highest anticipated snow level. Max. of 24"

Combustion

Air

Roof Boot/ Flashing (Field

above roof.

Support (Field Supplied)

25-22-03

_45 ° Elbow

(Field Supplied)

Vent

Combustion

Air 25-22-02

Note:

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

3. Cut one 5" diameter hole through the structure for the NAHA001CV Kit or one 4" diameter hole for the

NAHA002CV Kit.

44001 201202 [_

Page 40

4. DimensionDmaybelengthenedto60"max.orshortened bycuttingthepipesto12"min.DimensionAwillchangeac- cordingtoDdimension.(SeeFigure42)

Concentric Vent Dimensional

Drawing

B PVC

-- Vent/Exhaust I

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 the Y Concentric fitting to the 4" diameter kit pipe. (See Figure 43) B) Cement the 3" rain cap to the 21/2" diameter kit part. (See Figure 43) 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 43)

Rain Cap to Vent Pipe Assembly

• J

11/2 " __ --

l-B

PVC Intake/Combustion Air

Model A* B C D**

NAHA001CV 333/8 2 31/2 187/8 NAHA002CV 387/8 3 41/2 211/8

* = 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

25-22-03

Concentric Termination Kit

Ta_i_ NAHA001CV&NAHA002VCVenting

Table Dual Piping ONLY

50,000 & 75,000 Btuh Furnace

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

100,000 & 125,000 Btuh Furnace

NAHAOOICV- 35' & (4) 90° elbows with 3" PVC pipe

1. Do not include the field supplied 45 ° elbow in the total elbow count.

2. If more than four elbows are required, reduce the length of both the inlet and the exhaust pipes five feet for each

additional elbow ueed.

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.

Ifassembly 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 42)

Do not use field supplied couplings to extend the pipes.

Airflow restriction will occur and the furnace pressure

switch may cause intermittent operation.

Drill clearance hole in rain cap and pilot hole in vent pipe.

Stainless steel screw (Field supplied)

Poison carbon monoxide gas hazard.

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.

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

Poison carbon monoxide gas hazard. 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.

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

Install the Y concentric fitting and the pipe assembly through the structure's hole. For vertical termination, install the parts through the field supplied roof boot/flashing.

NOTE: Do not allow insulation or other materials to accu- mulate inside the pipe assembly when installing through

the structure's hole. Secure the assembly to the structure as shown in

Figure 41 or Figure 45 using field supplied metal strap- ping or equivalent material.

NOTE: Ensure the termination height is above the roof sur- face or anticipated snow level as shown in Figure 41 for

vertical termination. Ensure the termination location clear- ance dimensions are as shown in Figure 44 and Figure 45

for horizontal termination.

[_n 440012012 02

Page 41

iiiiiiiiiiiiiiii;ii_i!i_i_i_;i;!;i!iii_iiiiiiiii_i_iiii_;!_ii!i_iiiiii_iii_iiilii_ii_iiiiii_iii_;_ii!i!iiiiiiiiiiiiiiii!i!_ii_i_i_i_iii_!iiii_iiiiiiiiiiiiiiiiiiiiii_

!_,_!_ ConcentricVentandCombustion-Air

.............................................................................Side Termination

Roof Overhang

12" min.

Maintain 12" clearance above high- est anticipated snow level or grade whichever is greater. 25-22-02

_iii l C°ncentric Vent SidewallAttachment

Strap (Field Supplied)\ _,_JJ,_ 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 41 or Figure 45 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.

\ _2 ir

Vent o

Vent

_//,_-_1-_ Flush to

_ion ,_o_ .... _ 1" max.

Air 45° Elbow _/_

Note:

Securing strap must be field installed to prevent movement of ter-

mination kit in side wall.

(Field Supplied)

25-22-02

44001 201202 [_

Page 42

TECHNICAL SUPPORT

Specifications

*gMPT050F12A *9MPT075F14A *9MPT100J16A *9MPT125L20A

General

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

Transformer Size (VA) 40 T'stat Heat Anticipator .10

Input(Btuh)Std/Att. HiFire 50,000 75,000 100,000 125,000

Output(Btuh)StdiAIt. HiFire 46,000 69,000 92,000 115,000

Temp.Rise('F) Hi Fire 35-65 40-70 40-70 40-70

Electrical(Volts!Hz/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 (° F)

@ Blower / @TransitionBox (Hi Fire)

Std. Pressures (" of WC) 5' No Elbows

40' +5-90 ° DWV Elbows @ Blower / @TransitionBox (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 RoItoutSwitch(F)

LimitControl Setting(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.Mfd/VoIts FilterType

OooICap.(Tons)@ .5"W.O. L, ML,MHi& Hi Gas Conversion Kits All Models

Nat to LP NAHF002LP *1011789 LP to Nat NAHF002NG *1011787

*Order from Service Parts

LoFire 35,000 53,000 70,000 87,500

LoFire 32,200 48,800 64,400 80,500

LoFire 25-55 30-60 30-60 30-60

115/50/9.8 115/60/9.0 115/50/9.0 115/60/11.2

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

2/42 2/54 3/42 3/54 4/42 4/54 5/42 5/54

SV 9541 SV 9541 SM 9541 SM 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

3OO 26O

1013515

0.95

0.80

1.70

1.50

1013165

0.70

0.55

1.40

1.20

11-8 10/1050 Psc/t/2

10/370

16x25xl

11/2,2,21/2,3

<140

3OO 210

1013515

0.95

0.80

1.70

1.50

1013165

0.70

0.55

1.40

1.20

11-10 10/1050 PSC/1/2

10/370

16x25xl

11/2,2,21/2,3.5

HWST9162A

30/60

60,100 140,180

<140

3OO 24O

1013515

0.95

0.80

1.70

1.50

1013165

0.70

0.55

1.40

1.20

11-10

10/1050

PSC/1/2

10/370

16x25xl

21/2,3,31/2,4

<140

30O 180

1013166

1.30

1.10

1.80

1.60

1013157

0.85

0.70

1.70

1.50

11-10

13/900

PS0/3/4

40/370

16x25x1 (2)

31/2,4,41/2,5

[_ THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE 44001201202

Page 43

TECHNICAL SUPPORT

CIRCULATION AIR BLOWER DATA For 050 Models 3 Ton Units For 075 Models 3.5 Ton Units

Speed Low Med L Med H Hi

Tap

0.1 826 1083 1301 1408

0.2 804 1050 1242 1347

_ 0.3 770 1028 1195 1295

.£ _ 0.4 735 985 1153 1237

_ 0.5 698 952 1093 1183

_ 0.6 657 909 1040 1118

0.7 --- 863 935 1053

0.8 .... 812 865 976

0.9 ...... 802 887

1.0 ...... 720 787

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

_ 0.3 747 1056 1426 1720

•£ _ 0.4 677 1016 1382 1648 _ 0.5 617 970 1317 1575

E _ 0.6 544 854 1245 1485

0.7 --- 763 1154 1401

0.8 --- 652 1043 1284

0.9 ...... 905 1161

1.0 ...... 737 1028

._n,-I_ree- Low Med L Med H Hi

Tap

0.1 695 1025 1455 1724

f_ @

o." 0.3 653 951 1366 1601

•9 _ 0.4 631 921 1309 1530

E = 0.6 569 845 1187 1380

w 0.7 529 799 1122 1300

0.2 674 1001 1410 1662

0.5 609 891 1252 1460

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

_ 0.3 1644 1833 2024 2201

•£ _ 0.4 1600 1777 1961 2131 _ 0.5 1533 1720 1891 2029

E _ 0.6 1494 1647 1804 1948

0.7 1413 1571 1708 1820

0.8 1306 1470 1604 1730

0.9 .... 1349 1484 1614

1.0 ........ 1328 1430

44001201202 THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE [_

Page 44

CONNECTION DIAGRAM LADDER DIAGRAM

FIELD CONNECTION BOX

_ SWITCH

60HZ

-_ -B_

(HI VOLT FIELD) _ I

COPPER CONDUCTORS I V BL

ONLY

INTERLOCK

[

L . __

r --R- i -T]

IGNITER - _ -4 -

I -- F ---- ]

I_ :---: q-_q7 I

I SEN_

-li_ _-_

r÷_J i

_RANSFORMERI

_ [_®_

I I 1--

DANGER: ELECTRICAL SHOCK HAZARD

DISCONNECT BEFORE SERVICING

• R...... TO31N_OLLOUT SWITCH I I

R--- - -- _ _ "GAS VALVE

SERIES DEPENDINGON MODEL p

BL-%,-{_-----]

_STAG_!E %_S_REPRI'_%%RE;

m_ - 7 ,.-,.SWITCNI

_ _ i i J

--t-- F-- .-----._

_J I I I (LP MODELS ONLY) I

II' . "_L._J

3:2.__ J

HOT 115V_60HZ NEUTRAL

< >

,s.T,_c_OCK_i_. J

_ _ CONT (OPT) N

Ii oM__ -;4 II

II _i§_ CA'AC'TO_II

II L ND'N L_ _DOdT_ER _ (sAFAE'ToRELs) II

_____ © H_M N

h _ BL--

I [] =s=

r _ _w _ --- W2 _ _

t "lc _ & _ _=.---

_L _ Y ..... _--

_1r . w_ _ =-

2-STAGE CAPACITOR

THERMOSTAT BL ---- -- -- CA'PACITO R

I'_ -- R-- -- --' _ _ _SC_ - (SOME MODELS) --

y-- __ I. _ W _ _ COLOR CODE

SINGLE STAGE L G-- !I G_ BLACK-HI BLUE-MLO BLUE BL

THERMOSTAT _ ORANGE-MHI RED-LO BROWN BR

NOTE: _ LINE VOLTAGE FIELD ORANGE O MOST VOLT METERS WILL READ 13d 6 VOLTS TO -- -- LOW VOLTAGE FACTORY

CHASSIS ON BOTH SIDES OF AN OPEN LIMIT OR _ _ LOW VOLTAGE FIELD PRESSURE SWITCH IN THE RECTIFIED AC = = INTERNAL CIRCUIT BOARD WIRING YELLOW Y

VOLTAGE CIRCUIT - -- RECTIFIED AC VOLTAGE FACTORY

SEE _NUALS FOR ADJUSTING SPEED TAPS FOR PROPER HEATING, COOLING & CIRCULATING SPEEDS.

_ _ _ () Y_ _ _ SPEED TAP CODE BLACK BK

]

d_ N

r J_l IGNITER 1TO31NSERIES

T_NSFORMER

SE'SOR'l F____L'_"ti_.'

5 A O%r_ i i i

O BK R BR

-- LINE VOLTAGE FACTORY

GREEN G

RED R

WHITE W

PURPLE P

..... U L _ _ow

20 .... _ I _ --i i q PRESSURE

to .... _ii 7 SW,TCR

_0 .....

:o :-F--_--I:-__E if!

40 GAS I '

i '"' LSW,TOR@, [ _'___

III THERMOSTAT

I--

iF ANY OF THE ORIGINAL WiRE AS SUPPLIED WITH THE APPLIANCE MUST BE REPLACED. iT MUST BE REPLACED WiTH TYPE AWM 105°C WIRE OR iTS EQUIVALENT

co "

HUMO= _

o==_

ROLLOUTSWITCH

DEPENDINGONMODEL

_ -- -- -- J I | /LP MODELSONLY) |

IHIGH PRESSURE I I, 1_ I

ON --"'_

OO OO r-r-

N mz

m_ _m

r->

•, ctl

_ H

o r-

o + m

N >

m © :_ ©

__o_ g

1013360_A

z ©

Page 45

AA_

16 GG

Representative drawing only, some models may vary in appearance.

25_23-95

o o

Page 46

I Replacement Parts - *gMPT

Models - *gMPTO5OF12A2, *9MPTO75F14A2, *gMPT1 COJ16A2 & *gMPT125L2OA2 (Natural Gas)

Replacement part supplied will be current active part. For _arts not listed, consult place of purchase.

Key Description Key Description Part

No, Functional No, Non-Functional Number 050 075 100 125

1 HeatExchanger,Primary

2 HeatExchanger,Secondary

3 Motor,Btower

4 Mount,Motorkit

5 Wheel,Blower

6 Transformer 7 Capacitor, lOMfd.,370V

8 Control,FanTimer 9 Switch,Interlock 10 Switch,Pressure

11 Blower,Exhaust

12 Valve,GasHSP Nat.2 Stage 13 Burner,Pilot HSP

14 Igniter/SensorHSP 15 Orifice,Burner#42 Nat.

16 Switch,Limit(Rollout) 17 BurnerAssembly

18 Switch,Limit(Main)

19 Orifice,Pilot .018 20 Filter,HH16X25X1/2"

40Mfd.,370V

Part

Number 050 075 100 125

1012850 1 1012854 1 1012858 1 1012862 1

1013762 1 1013763 1 1013765 1 1013767 1

1009052 1 1 1

1011906 1

1013379 1

522020024 1 1 1

1013011 1

1011420 1 1 1 1012722 1 1 1 1 1094956 1 1 1

1012176 1 1012084 1 1 1 1 1012351 1 1 1 1

1013166 1 1013515 1 1 1

1013357 1 1 1 1013376 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 ,116 120

*gMPT

A Panel,Top

B Gasket,Top Panel

F Partition,Blower

H Housing,Blower

J Panel,BlowerCutoff

K Hanger,Blower

L Door,Blower (Comfortmakeronly)

(Comfortmakeronly) (Comfortmakeronly) (Heitonly) (Heitonly) (Heitonly) (Tempstaronly) (Tempstaronly)

(Tempstaronly)

M BracketAsy.,Door Filler

N Door,Front (Comfortmakeronly)

(Comfortmakeronly) (Comfortmakeronly) (Heitonly) (Heitonly) (Heitonly) (Tempstaronly)

(Tempstaronly) (Tempstaronly)

0 Clamp,Capacitor

P TransitionAssembly

Q Gasket,Blower

R Board, Insulating

S Box,Coliector

T Gasket,Transition

U Gasket,ColiectorBox

V Partition,Front HeatExchanger

1012342 1 1 1012343 1 1012344 1

1012603 1 1 1012604 1 1012605 1

1013164 1 1012877 1 1013162 1 1013163 1

1012972 1 1012888 1 1 1

721020013 1 721020008 1 1 1

1012328 2 2 2 2 1013141 1 1

1013142 1 1013143 1 1013138 1 1 1013139 1 1013140 1

1013394 1 1 1013395 1 1013396 1

1013730 1 1013727 1

1013728 1 1013729 1

1013148 1 1 1013149 1 1013150 1 1013145 1 1 1013146 1

1013147 1 1013397 1 1 1013398 1 1013399 1

1095020 1 1 1 1095022 1

1012281 1 1 1012282 1 1012283 1

1012588 1 1 1 1013415 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

*gMPT

F12 F14 ,116 L20

[_ 44001201202

Page 47

I Replacement Parts - *9MPT

Models - *9MPTO5OF12A2, *9MPTO75F14A2, *9MPT1 COJ16A2 & *9MPT125L2OA2 (Natural Gas)

Replacement part supplied will be current active part. For parts not listed, consult place of purchase.

Key Description Part Key Description Part

No, Functional Number 050 075 100 125 No. Functional Number

W Gasket,AttachmentPlate

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,BurnerBoxSide

HH Bracket,ControlMounting

JJ Tube,Sensor

KK Trap,DrainAssembly

LL Sightglass

(Tempstaronly)

MM Wrapper,FilterRack

NN Front,Filter Rack

CO Cover,Filter

PP Clip,Filter

)( PARTNOTILLUSTRATED )( Door Screws

)( Door ScrewRetainers )( ClampHose

)( DrainVent )( Coupling,Discharge

)( Coupling,Discharge )( Elbow,Street

)( Pipe,PVC )( Gasket,Air Intake

)( Gasket,Trap )( Hose,Drain 1/2"

)( Hose,Drain 5/s" )( Hose,Drain 3/16"

)( Clamp,HoseSis" )( Clamp,Hose3/4"

)( Grommet,Vent )( CIamp,Hose

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

1012321 1 1009238 1

1013676 1 1013235 1

1013236 1 741010039 1 741020001 1

2791043 1

1008482 3

1013349 4

1013725 4

1013830 2

1013890 1

1002522 1

1013930 1

1013931 1

1012583 1

1013701 1

1012695 1

1012696 1

1009238 1

1012975 2

1012976 2

1012697 1

1013651 1

*9MPT

F12 F14 J16 L20

1 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 2 2 1 2 2

1 2 2

3 3 3

4 4 4 4 4 4 2 2 2

1 1 1 1 1 1

2 2 2 2 2 2

1 1 1 1 1 1

)( Bushing,StrainRelief )( Grommet,Vinyl

)( Harness,Wire

)( Manual,Users )( Manual,Installation

Gas Conversion Kits - All models Nat to LP "1011789 LP to Nat "1011787 * Must be ordered from Service Parts

050 075 100 125

F12 F14 J16 L20

1945287 1 1009535 1

1013689 1 1013690

44102200106 1 44001201202 1

*9MPT

1 1 1 1 1 1

1 1

1 1 1 1 1 1

44001 2012 02 _]

Page 48

TECHNICAL SUPPORT

Specifications

*gMPV050F12A *9MPV075F12A *gMPV1OOJ20A *9MPV125L20A

General

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

Transformer Size (VA) 40 T'stat Heat Anticipator .10

Input(Btuh)Std/AIt. HiFire

Output(Btuh)Std/AIt. Hi Fire 35,000 87,500

Temp.Rise (F) HiFire 32,200 80,500

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 (° F) Comb. Blower (MFD/VoIts)

@ Blower / @Transition Box (Hi Fire)

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

Limits&Controls RoltoutSwitch(F)

LimitControlSetting (F) Fan Control (Type)

Fan Control On (Timed-secs) Off

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.

FilterType Min.CoolCap. (Tons)

Max.0ootCap.(Tons) Gas Conversion Kits All Models

Nat to LP *1011789 LP to Nat *1011787

*Order from Service Parts

LoFire 50,000 125,000

LoFire 46,000 115,000

LoFire 35-65 40-70

35-65 40-70

115/60/9.8 115/60/11.2Electrical(Votts/Hz/FLA)

Lo Fire (" WC)

Nat.

2/42

SV 9541

SNAP

3.5

1.7

.018

.20 / - 1.90 .00 / - 1.80

L.R Nat.

2/54 3/42

SV 9541 SV 9541

SNAP SNAP

10.0 3.5

4.9 1.7

.011 .018

<140

4/370

3OO 26O

1013515

0.95

0.80

1.70

1.50

1013165

0.70

0.55

1.40

1.20

11-8

9.8/1050 B0/1/2

16x25xl

1.5 3

75,000 53,000

69,000 48,800

40-70 40-70

115/60/8.9

LP. Nat.

3/54 4/42

SM 9541 SV 9541

SNAP SNAP

10.0 3.5

4.9 1.7

.011 .018

<140

4/370

3OO 210

HW ST9182A

60,100,140,180

1013515

0.95

0.80

1.70

1.50

1013165

0.70

0.55

1.40

1.20

11-10

8.9/1080 DC/1

16x25xl

1.5 3

HW HSP

30/60

100,000

70,000 92,000

64,400

40-70 40-70

11516019.0

SV 9541

<140

4/370

-1.20 / -1.90

-1.00 / -1.80

3OO 24O

1013515

0.95

0.80

1.70

1.50

1013165

0.70

0.55

1.40

1.20

11-10

11.2/1150 DO/1

16x25x1

2 5

L.E

4/54

SNAP

10.0

4.9

.011

Nat. L.R

5/42 5/54

SM 9541 SM 9541

SNAP SNAP

3.5 10.0

1.7 4.9

.018 .011

<140

4/370

3OO 190

1013166

1.30

1.10

1.80

1.60

1013157

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 2012 02

Page 49

Circulation Air Blower Data - *gMPV

Heating, Cooling & Continuous Airflow Settings

Continuous Blower (CFM) @ 0.10" Static Lo Heat Air Temperature Adjustment (° F)**

Switch Settings Furnace Model

#1 #2 50K 75K lOOK 125K

0* 0* 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 lOOK 125K

0"* 0"* 0"* 0 0 0 0

o o

1 o 1 o

1 1 1 1

*Factory setting **Approximate air temperature change from factory setting @ 0.20"

static on high heat ),

0 1 3 2 3 2 1 0 6 4 5 6

1 1 14 6 9 11

0 17 11 13 13 1 -8 -4 -4 -5

0 -13 -4 -7 -5 1 -17 -4 -9 -5

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 lOOK 125K

0* 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

[ .T,.uoo011 1I°°°""°]

oN 1 l

I 1<_>8 I INPUT

OFF 0 THERMOSTAT

DIP CONNECTIONS

SWITCHES

SIGNALOR

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 2012 02 THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE [_

Page 50

Figure 1

LL O

Circulation Air Blower Data - *gMPV

Heating, Cooling & Continuous Airflow Settings

*9MPV050 COOLING

(CFM VS, EXTERNAL STATIC PRESSURE)

+000

-- --001 ;, 010

_011 _100

_101 ,,,_-110

--_--111

0.1 0.3 0.5 0.7

Figure 2

*9MPV050 Hi HEAT

(CFM VS, EXTERNAL STATIC PRESSURE)

1200

1000

800

,u., 0 600

4oo _._

ESP" W.C.

_000

----001 _u--010 _011 _100

_101,110,111

2OO

0.1 0.2 0.5 0.7 1

ESP" W.C.

[_ THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE

44o01 2012 O2

Page 51

Figure 3

1000

900

800

700

600

LL 0 500

400

Circulation Air Blower Data - *gMPV

Heating, Cooling & Continuous Airflow Settings

*9MPV050 Lo HEAT

(CFM VS, EXTERNAL STATIC PRESSURE)

_:--_ _ --001

''"< _ _,. _,_ -lOl

_ --lOO

,,_,= 110

300

200

100

Figure 4

1800 .............................................

1600

1400

) ,.,.,..._

.U.

1200

1000

800

600

_111

0.1 0.2 0.5 0.7 1

ESP" W.C.

*9MPV075 COOLING

(CFM VS, EXTERNAL STATIC PRESSURE)

_000

-- --001 ==010

,,_._011 _100 _-=101

,_,,=110

_111

400

200

0.1 0.3 0.5 0.7

ESP" W.C.

44001 2012 02 THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE [_

Page 52

Figure 5

1400

1200

lOOO

Circulation Air Blower Data - *gMPV

Heating, Cooling & Continuous Airflow Settings

*9MPV075 Hi HEAT

(CFM VS, EXTERNAL STATIC PRESSURE)

800

LL 0

600

400

200

Figure 6

_000

-- --001

--_010

_011 _100

_101,110,111

0.1 0.2 0.5 0.7 1 ESP" W.C.

*9MPV075 Lo HEAT

(CFM VS, EXTERNAL STATIC PRESSURE)

__.....,....

,U., 0

0.1 0.2 0.5 0.7

ESP" W.C.

[_ THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE 44001 2012 02

_000 ,,_,,=001

--,:'='010 ,,_,=011

_100 _101

=-=110 _111

Page 53

Figure 7

LL O

Circulation Air Blower Data - *gMPV

Heating, Cooling & Continuous Airflow Settings

*9MPV100 COOLING

(CFM VS, EXTERNAL STATIC PRESSURE)

-- --000 =,=001

--_010

-_011

-=_100 _101

-=_110 _111

Figure 8

2500

2000

1500

LL O

1000

5OO

0.1 0.3 0.5 0.7

ESP" W.C.

*9MPV100 Hi HEAT

(CFM VS. EXTERNAL STATIC PRESSURE)

44O 01 2012 O2

0.1 0.2 0.3 0.5 0.7 1

ESP" W.C.

THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE [_

Page 54

Figure 9

180O

1600

1400

Circulation Air Blower Data - *gMPV

Heating, Cooling & Continuous Airflow Settings

*9MPV100 Lo HEAT

(CFM VS. EXTERNAL STATIC PRESSURE)

1200"

_ 1000"

800

6OO

400"

200

0.1 0.2 0.3 0.5 0.7

Figure 10

2500 .............................................

+000

-- --001

-_--010 _011 _100

-'--101 "-_-110 "_'-- 111

ESP" W.C.

*9MPV125 COOLING

(CFM VS. EXTERNAL STATIC PRESSURE)

2000

_000 _001

-=_=010

-=_=011 _100

-=_101

--I=110

--e--111

,U.. 0

1500

1000

'....--..__...._

500

0.1 0.3 0.5 0.7

ESP" W.C.

[_ THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE 440Ol 2o12 02

Page 55

Figure 11

25O0

2000

1500

LL 0

lOOO

Circulation Air Blower Data - *gMPV

Heating, Cooling & Continuous Airflow Settings

*9MPV125 Lo HEAT

(CFM VS, EXTERNAL STATIC PRESSURE)

_000

-- --001

--,DO 10 _011 _100

_101

.=,_,,=110

-,_ 111

500

Figure 12

,u., 0

0.1 0.2 0.5 0.7

ESP" W.C.

*9MPV125 Hi HEAT

(CFM VS, EXTERNAL STATIC PRESSURE)

-- I_000

--001

----010 _011

_100 L_101,110,111

0.1 0.2 0.5 0.7 ESP" W.C.

44001 2012 02 THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE [_

Page 56

..-I '1-

C UU

t...

I"11 O

..-I ..-I

O 'I-

Z rrl

..-I '1-

-I Z

..-I

rrl

CONNECTION DIAGRAM LADDER DIAGRAM

FIELD R - -- - _ _ _ _ HOT 115V-60HZ NEUTRAL _'b

DANGER: ELECTRICAL SHOCK HAZARD DISCONNECT BEFORE SERVICING

CONNECT,ON _ MA,NL,_O2_ .... "" %_ --DOMOT__

BOX INTERLOCK I __ /-- - -- - 4-- R SERIESDEPE_DINOON

SWITCH ! 5 GAS VALVE /

"_INTERLOCK _ ........... _.O _ ...... I

--BK----__ _ .... _--_L---4O_-----7<SW,TOH_ _:i..... __

_nw7 | i_ t,_.| I _E _ _ I PRESSURE "GH I

_ t_GND IGNITER -- 8484 -- GE / SWITCH _J_

q, VOLT F,ELD) _ _ I sF__...._ _ _ + _BK_ BK--I _ ! __ "" NO:c==

COPPER _1 I _ I_l F -- _ -- -- _ ; !1 r-J_ it

I1_1 _ _ j_--i I _sTA . PRESSURE.... I .......... _

. i_ .....CONTROL!ill_g%_

CONDUCTORS_'_"' ''_-_'' _'-- '):_-----_ _ "___ I-__U

L---_w_.4_ i 3L SW,TOH __STAGE II

_____wi. I t, I ,LPMODELSONLY_II__ °_

?4V SECONDARY _ I _ .._%_ _ --

" I I __P _ ---- W _ TRANSPORMER MAIN ROL_S_TC_ _3] N

H _ iCIRCUIT BOARD

XFMR 5_ _ N

: _--÷_ ____=_ w ,-_ I°N,TER_ ..........._.

r .... -_ ,, _ _ e i \ ........ ,, J-_ ...... ' I II '

,,----w-_- w_ , -_ _ : I I ". I_,_ _Oo-_/-.--t

_j _),-,-, ,,, , _K),1 _ <SOMEMODELS_ i_-F_I_'C_,vTvSEI___

_j_/ U TAT I I ! I I tlt'p±_ _ R _ R_ _ 7--0 I _STAGE

2-STAGE HUMIDIS B'R BK BL _ _ _a_' ROL" -_ iv_v_ ' DO _ _ 30 -_- q ........

_HER_OSTAT<OPT,O,_._,) I i _) ', 1_.......... JL_ -_L]%_7_€1 " 'O-,--_, DCMOTOR'_,

_ R _ _ _iliJ W |-_;,q_%L___ I

o b0

o K -- ©©

_ mz

o_ _ CO

:i: + r-

mE] m

_ ml

r_l.. .... _ __.w2|! I!1 !1 _Z".C_', _ 1II7T7i, Ii COLORCODE _ [_lll_ ..... i_ _ --_-7 _MOTO_

'@E-_'P2"_w'/'_'_Lt LL_::-'_ _-_'! BLAc_B__oo&oli!,_, ).,IF==F_,-:::::,:_z_-_'_._'_''_'.

SINGLE STAGE --G- ........ -- _ _ ......... [L_ _ !l

THERMOSTAT _ ,--L,NEVOLTAGEFACTORY GREEN G L _I li[L_--_''m

NOTE: MOST VOLT METERS WILL READ - i __ LOW VOLTAGE FACTORY RED R THERMOSTAT E Z _-- -- -- U

VOM_TSTROpCHASuSISEOsNv_BOTHISNtDTEH_OR_ATNIOPEN I_ _ LOTV_RVOLTAGFECFUIIELDOARDWIRING _yHLIToEw W IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE APPLIANCE MUST BE

AC VOLTAGE CIRCUIT -- RECTIFIED AC VOLTAGE FACTORY PURPLE p REPLACED, IT MUST BE REPLACED WITH TYPE AWM_I05°C WIRE OR EQUIV.

SEE MANUALS FOR ADJUSTING SWITCHES FOR PROPER HEATING, COOLING & CIRCULATING SPEEDS,

-- 13 16 i-- LINE VOLTAGE FIELD ORANGE O 2-STAGE IL_ ---:::_ -- jj 1

101336t-B

Page 57

CONNECTION DIAGRAM LADDER DIAGRAM

DANGER: ELECTRICAL SHOCK HAZARD

DISCONNECT BEFORE SERVICING

ON---_

-¢

CONNECTION _-R • MA]NLIMI C_ II / DCMOTOR _1

FIELD -- - T _ ROL U__J_L {_R _*_t_ HOT 115V-60HZ NEUTRAL "T"T "_'_ BOX IN SERIES 9_

, SW,TCH SW, CH ±±

115V NEUTRAL --------7 , --_ -- " _ L_

60HZ _ -- _ I R_ i " _ _ I _ " 7 PRESSURE HIGH

GND IGNITER 8 4 -- AGE !

,,_ I1_1 I ,-_ --:-1------ _s_ sw,_c.PRESSURE

1" . _ Y I _ ...... I I _W_-I'@I-- --1 1--. SW_TOH

(HI VOLT FIELD) _ I1 SENSOR_ I _ I _____ L'--__ __ I _' I

COPPER I BL 4 3 J _ _ ....

CONDUCTORS h] I 2 t -ili I ] I ......

ONLY

_RANSFORMERI I_II Y E _ (_--(_)] _: _-- .... /

INTERLOCK , _ INTERLOCK _ ......... __ B I 7" 3 -{BLOWER)

-- BK -_ -_ GAS VALVE __ BL" _ " --

\ --F I I_._-"-- "-'1-_ II + _B KJrl_ BK--I --(O-,_'1

I i-- _i- w@ I J I LP MODELS ONLY)

I -_ _--' _11

L -- - : _E__ ! ', I BL SWITCH

SKI : :--] ' _ J i p----_L I

/ O 3 _ GNU. _ ..... CONTROL _}_1 "2"_'--_OC'_ l

R- DEPENDING ON MODEL '

£ .....fg-il:::l:........... _1 N_

,_ _°[I_'_1'.... _' o==_

_ N rl

I1_ ---CIRCUIT BOARD

= i- =O© N

= = = _ t_ HUM HUMOr= XFMR !15_" _ N II

ILIi i -- w

I --V-- _t- -'J -- W

I w f _-w, _ _ _ _,U_ I i r-----I- __w_,-'4d__ 7 _, =_- -w- _Kt_ _

f(_m:_l I I .KI--Y--_ _ : : : _ IBK I I I (SOMEMODELS

_ '_ I III I _-- _ R T_ R

gl I ' ' , , , II _%° DCMOTOR _ ---- --

..... HUMIDISTAT BR I BK I BL _ i_ ......CONTROL _ _yi T _--Y_, _,_,_ z -- PRESSURE

2-STAGE (OPTIONAL) I I l I l _ _ iBL-- T T -BL-_B_)_FvO_ _ _ _OO -- Z

FHERMOSTAT _ Y W G _ ............ F" _ _" I G i T _ --G_ J. P2 60 Z *i

_-_-_ _I _ I_I_I _ ......_' _-_ _o°:

[2_.AJ ,, L _wlrl , I, I, .B_ ......... IITTlll _ =

..... -- " _ Y l L L L--_.'- LE_JJ dq BLUE BL I _ I I

I LINE VOLTAGE FACTORY GREEN GHERMOSTAT _ _ LINE VOLTAGE FIELD ORANGE O

NOTE: MOST VOLT METERS WILL READ 1346 VOLTS TO -- _ _ LOW VOLTAGE FIELD WHITE W CHASSlS ON BOTH SlDES OF AN OPEN UMIT OR PRESSURE - _ _ INTERNALCIRCUtTBOARDWIRIN_ YELLOW Y SWITCH IN THE RECTIFIED AC VOLTAGE CIRCUIT -- RECTIFIED AC VOLTAGE FACTORY PURPLE

"_ SEE MANUALS FOR ADJUSTING SWITCHES FOR PROPER HEATING, COOLING & CIRCULATING SPEEDS,

I -- -- LOW VOLTAGE FACTORY RED

BROWN BR

-- _ IGNITER LIMIT ]NoSDEER_ESDEPENDINGON

2_ ....... --1 LOW SWITCH

_A:1- - - r-lz:_ .... PRESSURE,.........

I1_ I , ,__ i _1_11 .' ] SWITCH ONLY)

7 II-I I | .

_ _s_E

7 SWITCH

• UC MOTOR _

'I_I_,_= ' MP_R _ _G'_PB _R_CONTROLr_ - _.--5'0-_1__1]_77 -"_ __//'_'_'_

I_ .......... Irr _ --

I I= ..........,I _'I

_I._........ III TTI_I

THERMOSTAT [

IFANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE APPLIANCE MUST BE REPLACED, IT MUST BE REPLACED WITH TYPE AWM-105°C WIRE OR EQUIV.

l-__-z-_ :--__--- " U I I

ROLLOUT SWITCH 1TO 3

o _ -----a oo

p )<

O0 O0

r-r-

rr_r-

o ©

10t3375-B

Page 58

25-23-95b

Representa_ve drawing only, some modds may vary in appearance.

Page 59

I Replacement Parts - *gMPV

Models - *gMPVO5OF1 2A2, *9MPVO75F1 2A2, *gMPV100J20A2 & *gMPV1 25L20A2 (Natural Gas)

Replacement part supplied will be current active part. For Darts not listed, consult place of purchase.

Key Description Part

No, Functional Number 050 075 100 125

1 Heat Exchanger,Primary

1012850 1 1012854

F12A F12A J20A L20A

1012858 1012862

*9MPV

2 Ht Exchanger,Secondary

1013762 1 1013763 1013765 1013767

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, GasHSP Nat.2

1012478 1 1012479

522020024 1

1013011 1 1011420

1012722 1

1012084 1 1 1 1 1012351 1 1 1 1

1013166 1013515 1

1013357 1 1013376

1013351 1

Stage

13 Burner,Pilot HSP 14 Igniter/SensorHSP

15 Orifice,Burner#42 Nat. 16 Switch,Limit(Rollout) 17 BurnerAssembly

1008731 1 1009524 1

1011351 2

1013102 2 1008723 1

1008724 1008725

1008726

18 Switch,Limit(Main)

19 Orifice,Pilot.018 20 Filter,HH 16X25X1/2"

21 Control,MtrVariableSpd

1320366 1 34335001 34335002

1008445

503211 1

1010365 1

1013410 1

1013411 1013412 1013413

Key Description Pert

No, Number 050 075 100 125

A Panel,Top 1

1012342 1

F12A F12A J20A L20A

1012343 1 1012344 1

B Gasket,TopPanel

1012603 1 1 1012604 1 1012605 1

F Partition,Blower

1013164 1 1012877 1 1013162 1

1 1

H Housing,Blower

1013163 1 1012972 1

1012888 1 1 1

J Panel,BlowerCutoff

K Hanger,Blower

L Door,Btwer(Cmakeronly)

(Cmakeronly) (Cmakeronly)

(Hellonly)

(Hellonly) 1 1

M BracketAsy.,DoorFiller

(Hellonly)

(Tstaronly)

1 5

N Door,Front (Cmakeronly)

(Cmakeronly)

Croakeronly)

(Hellonly)

(Tstaronly)

(Tstaronly) 1

P TransitionAssembly 1 2

Q Gasket,ExhaustBlower

721020013 1 721020008 1 1 1

1012328 2 2 2 2 1013141 1 1-

1013142 1 1013143 1

1013138 1 1 1013139 1 1013140 1 1013394 1 1 1013395 1013396

1013730 1 1013727 1 1013728 1 1013729 1

1013148 1 1013149

1013150 1013145 1 1013146 1013147 1013397 1 1013398 1013399

1012281 1 1012282 1012283

1012588 1 1013415

R Board,Insulating

1012418 1 1012419

1012420

S Box,Collector

1012244 1 1012245 1012246

T Gasket,Transition

1013263 1 1013080 1013083 1013084

U Gasket,CollectorBox

1012594 1 1012595 1012596

*gMPV

[_ 440 01 2012 02

Page 60

I Replacement Parts - *9MPV

Models - *9MPVO5OF1 2A2, *9MPVO75F1 2A2, *9MPV100J2OA2 & *9MPV1 25L2OA2 (Natural Gas)

Replacement part supplied will be current active part. For parts not listed, consult place of purchase.

2 2

1 1 1

1 1

1 3

*9MPV

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

Key Pa_

No, Description Number 050 075 100 125

F12A F12A J20A L20A

)( PARTNOTILLUSTRATED

)( DoorScrews )( DoorScrewRetainers

)( ClampHose )( DrainVent

)( Coupling,Discharge )( Elbow,Street

)( Pipe,PVC )( Coupling,Air Intake

)( Gasket,AirIntake )( Gasket,Trap )( Hose,Drain 1/2"

)( Hose,Drain 5/s" )( Hose,Drain 3/16" )( Clamp,HoseSis"

)( Clamp,Hose3/4"

)( Grommet,Vent )( Bushing,StrainRelief

)( Grommet,Vinyl

)( Harness,Wire

)( Harness,WireLo Voltage

)( Harness,WireHiVoltage

)( Manual,Users

)( Manual,Installation

1013349 4 4 1013725 4 4

1013830 2 2 1013890 1 1

1002522 1 1 1013930 1 1

1013931 1 1 1012284 1 1 1012583 1 1

1013701 1 1 1012695 1 1

1012696 1 1 1009238 1 1 1012975 2 2

1012976 2 2 1012697 1 1

1945287 1 1 1009535 1 1 1013689 1 1

1013690 1012520 1 1

1012521 1 1 44102200106 1 1

44001201202 1 1

Gas Conversion Kits - All models Nat to LP *1011789 LP to Nat *1011787

*Must be ordered from Service Parts

Key Part

No, Description Number 050 075 100 125

V Partition,FrontHt Exchger 1

1012650

F12A F12A J20A L20A

1012648 1 1012651 1

1012653 1

W Gasket,AttachmentPlate

1012542 2 1012543 2 1012544 2 1012545 2

W Gasket,AttachmentPlate

1012542 2 1012543 2 1012544 2 1012545 2

X Cover,JunctionBox

Y Box,Junction

Z Tube,Pilot

1012350 1 1 1 1 1012349 1 1 1 1

1012832 1 1 1013189 1

1013077 1

AA Bracket,Pilot

BB Manifold

1010901 1 1 1 1 1012970 1

1012971 1012278 1012279

CC Bottom,BurnerBox

DD BaffIe,BurnerBox

EE Top,BurnerBox

FF Bracket,ManifoldSupport

GG Bracket,BurnerBox Side HH Bracket,ControlMounting

JJ Tube,Sensor KK Trap,DrainAssembly

LL Sightglass

(Tstaronly)

MM Wrapper,FilterRack

NN Front,FilterRack CO Cover,Filter

PP Clip,Filter

1012334 1012335 1012336

1012338 1012339 1012340

1013702 1013703 1013704

1012377

1012532

1012321

1009238 1013676

1013235 1013236

741010039

741020001

2791043

1008482

*9MPV

4 4 4 4

2 2

1 1 1 1

2 2 2 2

1 1 1 1

1 1

1 1 1 1

1 1

440 01 2012 02

ICP H9MPT050F12A1, H9MPT050F12B1, H9MPT075F12A1, H9MPT075F14A2, H9MPT075F14B1 Installation Guide

Specifications and Main Features

Frequently Asked Questions

User Manual