Williams 6508732, 6508731, 5508332, 5008732, 5008731 User Manual

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INSTALLATION & OPERATING

INSTRUCTION MANUAL

owners manual

MODEL NOS.

3508332

3508732 5008732 5508332

6508732

FOR USE WITH

NATURAL GAS ONLY

MODEL NOS.

3508331 3508731

5008731 5508331

6508731

FOR USE WITH

LIQUEFIED

PETROLEUM (L.P.)

GAS ONLY

Save This Manual For

Future Reference.

COUNTERFLOW TOP VENT

GAS WALL FURNACES

READ THIS OWNERS MANUAL

CAREFULLY BEFORE YOU INSTALL

YOUR NEW WILLIAMS WALL FURNACE

WARNING: If the information in this

manual is not followed exactly, a fire or ex- plosion may result causing property

damage, personal injury or loss of life.

-- Do not store or use gasoline or other flammable vapors and liquids in the

vicinity of this or any other appliance.

WHAT TO DO IF YOU SMELL GAS

• Open all windows.

• Do not try to light any appliance.

• Do not touch any electrical switch; do not use any phone in your building.

• Extinguish any open flame.

• Immediately call your gas supplier

from a neighbor's phone. Follow the

gas supplier's instructions.

• If you cannot reach your gas supplier, call the fire department.

Installation and service must be per-

formed by a qualified installer, service agency or the gas supplier.

WARNING: Improper installation, adjust-

ment, alteration, service or maintenance can cause injury or property damage.

Refer to this manual. For assistance or additional information consult a qualified

installer, service agency or the gas supplier.

WARNING: Do not install any of these fur- I naces (Natural or L.R Gas) in mobile

Ihomes, trailers, or recreational vehicles.

ALL MODELS ARE CERTIFIED FOR USE IN CANADA EXCEPT 6508731 AND 6508732.

Williams Furnace Co., 225 Acacia St., Colton, CA 92324, USA

PRINTED IN U.S.A 6/98 P321005

Contents

Your Williams Warranty ......................... 2

Introduction .................................. 3

Basic Description .............................. 3

Optional Accessories ........................... 3

Helpful Installation Information ................... 3

Safety Rules ................................. 4

Unpack Your Furnace .......................... 5

Basic Tools Needed ............................ 5

Basic Materials ............................... 5

Installing Your Wall Furnace ..................... 6

Locating Wall Furnace and Thermostat .......... 6-7

Combustion and Ventilation Air ................ 7-10

Installation

Recessed Mount Installation ............. 10-12

Surface Mount Installation ................ 12-13

Vent Installation ........................ 13-15

Mounting Your Furnace ..................... 15-17

Gas Supply and Piping ...................... 17-18

Electrical Wiring ........................... 18-19

Thermostat Installation ...................... 20-21

Optional Accessory Installation ............... 21-23

Start Up Procedure ........................... 24

Operating Your Furnace ..................... 25-30

How To Care For Your Furnace ............... 31-32

Furnace Technical Information .................. 32

TROUBLESHOOTING CHART ............... 33-36

Wiring Diagrams ........................... 37-38

Repair Parts .............................. 39-46

SERVICE HINTS ...................... Back Cover

How To Order Repair Parts ............. Back Cover

Your Warranty

The Manufacturer, Williams Furnace Co., warrants this wall furnace or heater to the original purchaser under the following conditions: LIMITED ONE-YEAR WARRANTY

1. Any part thereof which proves to be defective in material or workmanship within one year from date of original purchase for use will be repaired or replaced al the

Manufacturer's option, FOB its factory,

2. No liability is assumed by the Manufacturer for removal or installation labor costs, nor for freight or delivery charges.

LIMITED EXTENDED WARRANTY

1, In addition to the above limited one-year warranty on the complete unit, any heat exchanger which burns out or rusts under normal installation, use and service

conditions during a period of nine years following expiration of the one-year warranty period will be exchanged for a like or functionally similar part.

2. No liability is assumed by the Manufacturer for removal or installation labor costs, nor for freight or delivery charges

LIMITATIONS

1. THIS LIMITED WARRANTY IS THE ONLY WARRANTY MADE BY THE MANUFACTURER. IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE ARE LIMITED TO THE SAME ONE YEAR TERM AS THIS EXPRESS WARRANTY. UNDER NO CIRCUMSTANCES SHALL THE

MANUFACTURER BE LIABLE FOR INCIOENTAL, CONSEQUENTIAL, SPECIAL OR CONTINGENT DAMAGES OR EXPENSES ARISING DIRECTLY OR INDIRECT- LY FROM ANY DEFECT IN THE PRODUCT OR ANY COMPONENT OR FROM THE USE THEREOF THE REMEDIES SET FORTH HEREIN ARE THE EXCLUSIVE

REMEDIES AVAILABLE TO THE USER AND ARE IN LIEU OF ALL OTHER REMEDIES

Some states do not allow limitations on how long an implied warranty lasts, and some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitations or exclusions may not appty to you

2. This warranty does not include any charge for labor or installation

3. This warranty does not extend to painted surfaces nor to damage or defects resulting from accident, alleration, misuse or abuse, or improper installation. 4 This warranty does not cover claims which do not involve defective workmanship or materials.

DUTIES OF THE CONSUMER

1. The heating equipment must be installed by a qualified installer and operated in accordance with the installation and homeowner's instructions furnished with the

equipment.

2, Any travel, diagnostic costs, service labor, and labor to repair the defective unit will be the responsibility of the owne_ 3, A bill of sale, cancelled check, payment record or permit should be kept to verify purchase date to establish the warranty period.

4. Have the installer enter the requested information in the space below.

GENERAL

1 The Manufacturer neither assumes nor authorizes any person to assume for it any other obligation or liability in connection with said equipment

2. Service under this warranty should be obtained by contacting your dealer Provide the dealer with the model number, serial number and purchase date verification

3. If. within a reasonable time after contacting your deale_ satisfactory service has not been received, contact: Customer Service Department, 225 Acacia St., Colton,

CA 92324_ for assistance

4 THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE

INSTALLATION INFORMATION Model No.

Orig. Purchaser Address

Serial No

City and State Zip

Dealer

Address. City and State Zip

Installation date Signed by (Dealer or

authorized representative who certifies that this appliance has been installed in accordance with Manufacturer's instructions and

local codes.)

introduction

Please read our instructions before you install and use your furnace. This will help you obtain the full value from this

furnace. It could help you avoid needless service costs, if the answer to the problem is found within this instruction

manual.

Basic Description

Your Counterflow Top Vented Wall Furnace is shipped

ready to install on the surface of a wall or recessed up to 9-1/4 inches in a wall, with wall studs spaced 16 inches

center to center. Vent piping and exhaust are not part of the Williams fur-

nace package and must be purchased separately. Always consult your local heating or plumbing inspector,

building department or gas utility company regarding regulations, codes or ordinances which apply to the in- stallation of a counterflow top vented wall furnace.

Air is drawn in at the top by the fan and discharges through a grille near the floor. A two-speed fan is used with Model 50087;55083 and 65087 series. A single speed fan is us-

ed on all other models. The furnace contains a multi-slot burner (two on Model 50087; 55083 and 65087 series) and

burns either Natural or L.P (Liquefied Petroleum) Gas, depending on the model you have purchased.

The furnace controls are located behind an access door

on the lower front of the furnace. All models are equipped

with American Gas Association listed gas valves and pilots.

Optional Accessories

OUTLET GRILLE REGISTER 6701 pg. 21 & 22

Lets you route some heated air to a second room. Mounts

on side wall of second room and must be within 10 inches of wall furnace.

DIFFUSER GRILLE KIT 6703 Fig. 3, pg. 7

Lets you route some heated air in a two-way direction. Kit 6704 for one-way direction.

REAR OUTLET KIT 6801 Lets you route some heated air to a second room behind

the furnace. Finished wall of second room must be within

10 inches of furnace. Ref. Fig. D, pg. 7. Built-in damper lets you shut off air flow to second room if desired.

SHORT REAR OUTLET KIT 6802

Letsyou route some heated air to a second room behind

the furnace when furnace is recessed mounted. Finished wall cannot be more than 3/4 inches from rear offurnace.

Built-in damper lets you control the air flow to the second room.

The combustion system draws combustion air directly from the room in which the furnace is installed, and through ven- tilation grills or ducts connected to the outdoors, such as an

attic or crawl space. The combustion gases are discharged through the roof within a listed vent pipe

The furnace heat exchanger is built of heavy gauge steel treated for corrosion resistance. The fan at the top forces

air down along the front, back and sides of the heat exchanger where it is discharged into the room. The fur-

nace cabinet is also constructed of heavy gauge steel and has an enamel paint finish.

Models 3508331; 3508332; 5508331 and 5508332 are

equipped with an electronic ignitionautomatic pilot relight system.

This appliance is equipped with a vent safety shutoff sys- tem designed to protect against improper venting of com-

bustion products. Operation of this wall furnace when not connected to a properly installed and maintained ventil-

lating system or tampering with the vent safety shutoff sys- tem can result in carbon monoxide (CO) poisioning and

possible death.

TRIM STRIP KIT 4701 Provides finished edge at sides of wall furnace. Neutral

beige enamel painted steel. OVAL VENT KIT 9901

This U.L. listed B/W vent kit contains 4 feet of oval double- walled vent pipe, plate spacers and starter or hold-down

plate that starts the venting from the top of furnace. See page 13 for additional items you will need.

VENT ENCLOSURE KITS 9812 or 9824 These kits are used only when the furnace is surface

mounted. They enclose the vent pipe from the top ofthe

surface to the ceiling.

SIDE GRILLE KIT 6702 Allows you to direct heated air from the side of furnace

into the same room. NOTE

All kits are identified on the carton by their Manufacturing

Number respectively, 6701, 6703, 6704, 6801, 6802, 4701, 9901, 9812, 9824 and 6702. These numbers are also listed on the furnace rating plate.

Helpful Installation Information

The following booklets will help you in making the installation:

ANSI/NFPA 70-1990 or current edition "National Electrical Code." In Canada: CSA C22.1 Canadian Electrical Code. American National Standard NFPA54/ANSI Z223.1 1988 or current edition "National Fuel Gas Code."

Obtain from -- American National Standards Institute, Inc., 1430 Broadway, New York, N.Y. 10018. In Canada: CAN/CGA B149 Installation Code.

m:_m

Safety Rules

WARNING

READ THESE RULES AND THE INSTRUCTIONS

CAREFULLY. FAILURE TO FOLLOW THESE RULES AND INSTRUCTIONS COULD CAUSE A MALFUNCTION OF THE FURNACE. THIS COULD RESULT IN DEATH, SERIOUS BODILY INJURY,

AND/OR PROPERTY DAMAGE.

INSTALLATION MUST CONFORM TO LOCAL CODES. IN THE ABSENCE OF LOCAL CODES, INSTALLATION MUST CONFORM WITH THE NATIONAL FUEL GAS CODE, ANSI

Z223.1. THE APPLIANCE, WHEN INSTALLED, MUST BE ELECTRICALLY CONNECTED AND GROUNDED IN ACCORDANCE WITH LOCAL CODES OR, IN THE ABSENCE OF LOCAL CODES, WITH THE CURRENT NATIONAL ELECTRICAL CODE ANSI/NFPA NO. 70.

IN CANADA

1. INSTALLATION MUST CONFORM TO LOCAL CODES OR, IN THE ABSENCE OF LOCAL

CODES, THE CURRENT CAN/CGA B149 IN-

STALLATION CODE.

2. THE APPLIANCE, WHEN INSTALLED, MUST BE ELECTRICALLY CONNECTED AND GROUND-

ED IN ACCORDANCE WITH LOCAL CODES OR, IN THE ABSENCE OF LOCAL CODES, WITH

THE CURRENT CSA C22.1 CANADIAN ELEC- TRICAL CODE.

3. REFERENCE IS MADE IN THIS MANUAL

REGARDING GAS TYPE AS L.P.G. BE ADVISED THAT L.RG. IS NOT AVAILABLE IN CANADA,

REFER TO PROPANE/L.P. GAS.

1. USE ONLY MANUFACTURER'S REPLACEMENT PARTS. USE OF ANY OTHER PARTS COULD CAUSE INJURY OR DEATH.

DO NOT install this furnace in an alcove.

DO NOT install these furnaces in a travel trailer, recreational vehicle or mobile home.

MAINTAIN all clearances specified in section "Locating Wall Furnace and Thermostat" and "Vent

Installation."

BE SURE furnace is for type of gas to be used. Check

the rating plate by the gas valve in the lower cabinet.

Do not change it to use other gases. Unsafe opera-

tion could result and could cause bodily injury and death.

For Natural gas, the minimum inlet gas supply pressure for the purpose of input adjustment is 5" col-

umn. The maximum inlet gas supply pressure is T'

water column.

For L.IR gas, the minimum inlet gas supply pressure for the purpose of input adjustment is 11" water col- umn. The maximum inlet gas supply pressure is 13"

water column.

ANY SAFETY SCREEN, GUARD OR PARTS RE-

MOVED FOR SERVICING THIS APPLIANCE MUST BE REPLACED PRIOR TO OPERATING THE AP-

PLIANCE TO AVOID PROPERTY DAMAGE, BODILY INJURY OR DEATH.

INSTALL the furnace vent directly to the outdoors, so that harmful gasses will not collect inside the building. Follow the venting instructions for your type installa-

tion exactly. Use only the type and size of vent pipe

and fittings specified.

BE SURE to provide for adequate combustion and ventilation air. See page 6. The flow of this air to the

furnace must not be blocked.

10.

NEVER test for gas leaks with an open flame. Use soap suds to check all gas connections. This will avoid

the possibility of fire or explosion.

11.

ALLOW furnace to cool before servicing. Always shut off electricity and gas to furnace when working on it.

This will prevent any electrical shocks or burns.

12.

DUE TO HIGH TEMPERATURES, locate the furnace out of traffic and away from furniture and draperies.

13.

ALERT children and adults to the hazards of high sur-

face temperature and to keep away to avoid burns or clothing ignition.

14.

CAREFULLY supervise young children when they are in the same room with the furnace.

15. DO NOT place clothing or other flammable material on or near furnace.

16.

INSTALLATION and REPAIR must be done by a qualified service person. The appliance should be in- spected before use and at least annually by a profes-

sional service person. More frequent cleaning may be

required due to excessive lint from carpeting, bedding material, etc. It is imperative that control compart- ments, burners and circulating air passages be kept

clean.

17.

BEFORE INSTALLING: Toavoid electrical shock, turn

off electrical circuits that pass through the wall where you are going to install the furnace.

18.

CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause im- proper and dangerous operation. Verify proper oper- ation after servicing

WARNING

DO NOT USE THJS HEATER IF ANY PART HAS BEEN UNDER WATER. IMMEDIATELY CALL A QUALIFIED

SERVICE TECHNICIAN TO INSPECT THE HEATER AND TO REPLACE ANY PART OF THE CONTROL SYSTEM

AND ANY GAS CONTROL WHICH HAS BEEN UNDER WATER.

--4--

Unpack Your Furnace

The furnace is shipped in one carton containing the fur-

nace, installation instruction booklet and hardware bag.

1. Lay carton horizontally. Remove top trim cover from its packing. Remove thumb screw at top of furnace, raise top front panel 1/2 inch and remove panel from cabinet. This is so you can get to the electrical con-

nections later.

2. Place these and other parts, as they are removed from furnace, where they cannot be lost or damaged before you need them.

3. Bottom front panel can be removed by grasping just below handle and pulling it outward and then upward. See Fig. 1.

NOTE

Check the burner rating plate, located in burner com- partment, to make sure your furnace is equipped to operate on the type of gas available (either Natural or

L.IRGas). Do NOT convert unit from Natural Gas to L.IR

Gas or from L.F_ Gas to Natural.

4. Remove all literature and package containing ther-

mostat, wire and metal anchors used for free standing installation.

5. Check the fan blade to be sure it spins freely.

Basic Tools Needed

Hand drill or properly grounded electric drill. Expansion bit 1/2" to 1-5/8" or 1/2" and 1-1/2" blade bits

1/8" and 3/16" drill bit (metal) 6 ft. folding rule or tape measure Screwdriver (med. blade) Screwdriver (Phillips head)

Pliers (wire cutting)

Hammer

Hole Saw - 2"

Basic Materials

Pipe and fittings tomake connections to furnace (see page

17).

Caulking compound - silicone rubber with a temperature rating of 500°tE

DO NOT USE types advertised as paintable or for bath tub use as most contain fillers and will not withstand high

temperatures. Pipe Joint Compound resistant to L.P. Gases.

Electrical wiring supplies as needed (see page 18). Minimum wire size is #14 gauge copper.

1/8" Allen wrench Stud Locator or small finish nails

Tin Snips 8" adjustable wrench 12" adjustable wrench

Key hole saw or Sabre saw Hack saw

2- 10" or 12" pipe wrenches Gloves and safety glasses

3/4" Quarter Round or other wood trim molding approxi- mately 16' long or Trim Accessory 4701 is recommended.

2" x 4" x (length as required) Spacer Blocks (see Close Off Stud Space, page 12).

Oval Vent Kit 9901 is recommended. Vent Enclosure Kit 9812 or 9824 if furnace is to be sur-

face mounted is recommended. 1 x 1 wood strips if Optional Side Outlet Grille Register

6701 is used.

--5--

Installing Your Wall Furnace

The following steps are needed for proper installation and safe operation of your furnace. If you have any doubts as to any requirements, always consult your local Heating or

Plumbing Inspector, Building Department or Gas Utility Company regarding regulations, codes, or ordinances

which apply to the installation of a vented wall furnace.

Obtain professional help where needed.

The CHECK AND ADJUSTMENTS on page 24 are vital

to the proper and safe operation of the furnace. Be sure they are done.

IMPORTANT

For satisfactory and trouble-free operation, be sure to:

1. Properly locate the furnace within the space to be heated.

2. Install the furnace in accordance with local codes or ordinances and instructions provided.

3. Maintain minimum clearance: Floor 0 inches or ceil- ing 4 inches, side wall 4 inches. For exception to

minimum side wall clearance, see Fig. 3, pg. 7.

4. Besure to provide enough combustion and ventilation air.

Locating Wall Furnace & Thermostat

Consider the following points before attempting to install the furnace:

CAUTION

Do not make cut-outs in wall or ceiling before check- ing in the attic for ceiling joist locations and proposed venting.

The counterflow vented wall furnaces are shipped ready to install on the surface of the wall or recessed up to 9-1/4

inches in the wall, with studs 16 inches center-to-center or stud space can be framed-in to 16 inches, see page

10, Recessed Mounting. I_[{'kIP_ll

Place the furnace near the center of the space to be

heated for good air circulation. Do not put it behind a door

or draperies.

Do not install the furnace in a closet, alcove, or small hallway where the furnace could be isolated by closing

doors to the heater space. See Fig. 2 for the minimum

clearances.

The top of the furnace must be at least 4 inches from the ceiling. See Fig. 2.

With standard furnace discharge outlet, do not install closer than 4 inches to intersecting wall. See Fig. 3B,

page 7. When using optional kits 6703or 6704 maintain clearances

as shown in Figs. 3A or 3C, page 7. When using optional kit 6704 maintain clearance as shown

in Figs. 3A and 3F, page 7. Use only optional outlet and grille kits available from manufacturer.

Do not install the furnace in a mobile home, trailer, or recreational vehicle.

The bottom of the furnace may rest directly on a wood or

concrete floor. If floor is other than wood or concrete there must be a piece of wood or sheet metal under the furnace

that is at least the same size as the bottom of the furnace.

On recessed installations the recessed portion may have 0 inches clearance to combustible material.

To provide adequate clearance and service access the

front of the furnace must face the open room. Be sure that gas piping and electrical wiring can be brought to the loca- tion. See sections covering piping and electrical wiring for your type of furnace mounting.

Furnace vent must be installed directly to the outdoors so that combustion gasses will not collect inside the building.

Provide an adequate vent or flue in accordance with local codes or ordinances and instructions provided by the vent

pipe manufacturer. Check the minimum spacing needs as shown in Figs. 2

and 3, pages 6 and 7.

--6--

RNISHED FLOOR

O" MIN.

FOR EXCEPllONS TO MIN. SIDE WALL CLF_CE

_RG.S 3A. ,.3C

,'.'_ k 3F

_/4"MIN WHEN

OPTIONAL ONE-WAY

FRONT DEFLECTING

GRILLE IS USED

A. 3/4 "_- _

12 ¸' _

12"MIN WHEN OPTIONAL T W0 -WAY F_ONT

DEFL [CTING GRILLE

rS USED C.

FJT 67_

OPTIONAL ON[- _'_ I,_- 3/4 MI% WAY f_EAR GRILLE

_IE-WAy FRONT

0PTIONAo__

GRILL[ -MI N

Locating Wall Furnace & Thermostat (Con't)

Choose a location for the thermostat about 5 feet above

the floor on an inside wall. The thermostat wire supplied with your furnace is 20 feet long, which should be enough

....,%

0 _ I_llM A X

GRIU-E IS US[D 1_4" _

KIT I_01

OP_IONA_ rWO-WA_ _.

REAR GRILLE 2 ¸'_ I

to run up through the attic so the thermostat can be a max-

imum of 16 feet from the furnace measured in a straight line, or approximately 12feet from the furnace if the wire is run under the floor. The thermostat should be sensing average room temperature, avoid the following:

HOT SPOTS: Concealed pipes or ducts

Fireplaces Registers

TV sets Radios

Lamps Direct sunlight

Kitchen

After picking a location that meets the requirements, check the walls, attic and roof to make sure there are no obstruc-

tions such as pipes, electric wiring, etc., which could in- terfere with the installation of the furnace or vent pipe. If

required, move them or pick a new location.

WARNING

DANGER OF PROPERTY DAMAGE, BODILY IN- JURY OR LOSS OF LIFE. DO NOT INSTALL FURNACE IN ANY AREA WHERE OXYGEN IS IN

USE.

COLD SPOTS: Concealed pipes or ducts

Stairwells - drafts

Doors - drafts

Unheated rooms on

other side of wall DEAD SPOTS: Behind doors

Corners, and alcoves

Combustion & Ventilation Air

WARNING

DANGER OF PROPERTY DAMAGE,

BODILY INJURY OR DEATH THE FURNACE AND ANY OTHER FUEL BURNING APPLIANCE MUST BE PROVIDED WITH ENOUGH

FRESH AIR FOR PROPER COMBUSTION AND VENTILATION OF FLUE GASES. MOST HOMES WILL REQUIRE THAT OUTSIDE AIR BE SUPPLIED.

The high cost of energy for home heating has brought about new materials and methods used to construct or

remodel most current homes. The improved construction and additional insulation has reduced the heat loss and

made these homes much tighter around windows and doors so that infiltrated air is minimal. This creates a pro- blem to supply combustion and ventilation air for gas-fired or other fuel burning appliances. Any use of appliances that pull air out of the house (clothes dryers, exhaust fans, fireplaces, etc.) increases this problem and appliances could be starving for air.

In addition, these energy measures mean that your home will retain more water vapor or a higher relative

humidity.

High humidity, especially during cold weather, may be damaging to buildings because condensation forms on

windows and inside walls. The combination of a tight energy efficient home with the

use of exhaust fans, fireplaces, clothes dryers, and gas appliances results in more and more air being drawn from the house until fresh air may be sucked in to the house down the furnace flue or fireplace chimney.

Carbon monoxide can be the result. Carbon monoxide or "CO" is a colorless, odorless gas produced when fuel

is not burned completely or when the flame does not receive sufficient oxygen. Automobiles, charcoal, wood fires and improperly vented or air-starved coal, oil and gas

furnaces or other appliances can produce carbon monoxide.

Be aware of these air-starvation signals:

1. Headaches, nausea, dizziness.

2. Excessive humidity - heavily frosted windows, moist "clammy" sensation.

3. Fireplace smokes, won't draw.

4. Furnace flue backs up.

--7--

Combustion & Ventilation Air (cont.)

AIR REQUIREMENTS The requirements for providing air for combustion and

ventilation are listed in the National Fuel Gas Code NFPA

54/ANSI Z223.1 (in Canada: CAN/CGA B149). Most homes

will require that outside air be supplied to the furnace area

by means of ventilation grilles or ducts connecting direct- ly to the outside or spaces open to the outdoors such as attic or crawl space. The only exception is when the fur- nace area meets the requirements and definitions for an unconfined space with adequate air infiltration.

WARNING

DANGER OF PROPERTY DAMAGE,

BODILY INJURY OR DEATH THE FURNACE AND ANY OTHER FUEL BURNING APPLIANCE MUST BE PROVIDED WITH ENOUGH

FRESH AIR FOR PROPER COMBUSTION AND VENTILATION OF FLUE GASES. MOST HOMES WILL REQUIRE THAT OUTSIDE AIR BE SUPPLIED.

All air openings and connecting ducts must comply with the following:

IF THE FURNACE IS INSTALLED IN AN AREA WITH ANOTHER GAS APPLIANCE(S), THE TOTAL INPUT

RATING OF ALL APPLIANCES MUST BE CONSIDERED WHEN DETERMINING THE FREE AREA RE- QUIREMENTS FOR COMBUSTION AND VENTILATION AIR OPENINGS.

Ducts must have the same cross-sectional area as the free

area of the openings to which they connect. The minimum dimension of rectangular air ducts must not

be less than 3 inches.

LOUVERS / GRILLES AND SCREENS

COVERING FREE AREA OPENINGS

If screen is used to cover opening(s), it must not be smaller

than 1/4 inch mesh. Use the free area of a louver or grille to determine the size opening required to provide the free

area specified. If the free area is not known, assume a 20% free area for wood and a 60% free area for metal

louvers or grilles.

EXAMPLE 1. FURNACE LOCATED IN UNCONFINED SPACE.*

*An unconfined space must have a volume of a minimum 50 cubic feet per 1000 Btuh of total of all appliances in area. Adjoining rooms may be included only if there are

no doors between the rooms, or if special provisions are made such as ventilation grilles installed between con-

necting rooms. Fig 6, page 9 shows the minimum area in square feet, bas-

ed on 8 foot ceiling heights, required for different Btuh input ratings.

A. If your furnace is in an open area (unconfined space*)

the air that leaks through the cracks around doors and windows may be enough for combustion and ventila-

tion air. The doors should not fit tight. The cracks around windows should not be caulked or weather

stripped. To determine if infiltration air is adequate, perform the

following checks:

1. Close all doors and windows. If you have a fire- place, start a fire and wait until flames are burning vigorously.

DRAFT HOOD SPILLAGE

VENT PIPE

WATER

HEATER

DRAFT HOOD

__MATCH

Turn on all exhausting devices, such as:

__L

WALL

FURNACE

MATCH

DRAFT HOOD OPENING

- kitchen and bathroom exhaust fans

- dryers (gas and electric)

Turn on all vented gas appliances, such as:

- heating equipment (includes any room heaters)

- water heaters

4. Wait ten (10) minutes for drafts to stabilize.

5. Check for draft hood spillage at each appliance. (Hold a lighted match 2 inches from draft opening.

See Fig. 4.)

B. No Spillage

Match flame pulls toward draft hood - this indicates sufficient infiltration air:

1. Return exhausting devices and appliances to the condition you found them.

C. Draft Hood Spills

If there is spillage at a draft hood (match goes out or

flame wavers away from draft hood):

1. Check for plugged flue connectors and chimneys.

Check and repair stoppage and test again.

2. If you have a fireplace, open a window or door near the fireplace and then check for spillage.

a. If spillage stops, do not use the fireplace without

a nearby window or door open until you can supply fresh air by a permanent duct.

3. Ifyou have kitchen and bathroom exhaust fans, turn them off and check for spillage.

a. If spillage stops, do not use exhaust fans until

you can supply fresh air by a permanent duct. Circuit breakers for fans should be turned off if

possible.

m8--

Combustion & Ventilation Air (cont.)

WARNING,

DANGER OF PROPERTY DAMAGE,

BODILY INJURY OR DEATH

DRAFT HOOD SPILLAGE, WITH UNOBSTRUCTED

VENTS, INDICATES THAT ADDITIONAL AIR MUST

BE BROUGHT iNTO THE STRUCTURE FROM THE

OUTSIDE. KEEP A WINDOW OPEN (MINIMUM 2

INCHES) NEAR THE APPLIANCE UNTIL A PERMA- NENT AIR DUCT iS INSTALLED.

4. Spillage means air starvation and a fresh air duct or air intakes must be installed to provide air directly to the furnace or other gas appliance.

D. If spillage exists or when the furnace is in a building

of tight construction where the windows and doors are

weatherstripped, air for combustion and ventilation

must be obtained from outdoors or space open to the outdoors.

Provide an opening(s) having a total free area of 1 sq. inch per 4000 Btuh of the total of all appliances. The required area is shown in Fig. 9, page 10 under the column for (40,000).

FRESH AIR DUCT

HOLES FROM VENTILATED ATTIC INTO STUD SPACE

SEE FIG 8

provided with free air for proper combustion and ventila- tion of flue gases by one of the following methods.

A. All Air From Inside Building:

If the confined space adjoins an unconfined space as defined in EXAMPLE 1,provide two permanent openings, one within 12 inches of the top and one within 12 inches of the bottom of the room connecting directly to unconfin-

ed space. Each opening must have a free area of at least

100 square inches or 1 square inch per 1000 Btuh com-

bined input of appliances in one room if combined input

exceeds 100,000 Btuh.

WARNING

DANGER OF PROPERTY DAMAGE,

BODILY INJURY OR DEATH

THE ADJOINING UNCONFINED SPACE MUST

HAVEADEQUATE AIR INFILTRATION AS DEFINED IN EXAMPLE 1.

FOR EXAMPLE: Your furnace is rated at 50,000 Btu per

hour.The water heater israted at 30,000 Btu per hour.The totalis80,000 Btu per hour.Youneed two grilles,each with

100 square inchesof free opening. Metal grilles haveabout 60% free area, so you need two metal grilles each with 160 square inches of Iouvered area.

Refer to Fig. 7, page 10, which shows grille installation. Using the previous example, the two connecting rooms

plus the closet must equal at least 500 sq. feet to handle the combined input 50,000 plus 30,000.

AIR GRILLE TO STUD SPACE

12" MAXFROM FLOOR

HOLES FROM VENTILATED CRAWL SPACE INTO STUD SPACE

HOLE IN BOTTOM OR BACK OF FURNACE INTO OPEN STUD SPACE OR CRAWL SPACE

SEE FIG 8

Fig. 5 shows a typical duct going into ventilated crawl

space or attic.

1. Duct must terminate at a point not more than 1 foot above the floor.

2. Duct size must be at least 1 inch of free area for each 4000 Btuh of input of all appliances in area.

EXAMPLE 2. FURNACE LOCATED IN CONFINED SPACE.

If furnace is installed in a confined space, it must be

MINIMUM AREA IN SQUARE FEET

4000 Btuh Per

Square lnch

Opening

Round Rectangular

Duct

4" DIA. 4" DIA. 4" D[A. 4" DIA,

4" DIA.

4_ '' DIA

*Can be two or more rooms joined by ventilation grilles.

Duct

3"x3" SQ. 3"x3" SQ. 3"x4" SQ. 3"x4" SQ. 3"x5" SQ. 3"x5" SQ.

Max. Btuh

Input

30,000

35,000

40,000 45,000

50_00 60_00

*Unconfined Space

Min. Area In Sq. Ft.

8' Ceiling Height

250

B. All Air From Outdoors: If confined space doesn't adjoin an unconfined space

(defined in EXAMPLE 1) then air must be provided from outdoors or spaces open to outdoors such as attic or crawl

spaces.

Provide two permanent openings, one within 12 inches of top, one within 12 inches of bottom of room connecting directly, or by using ducts, with the outdoors or areas open

to outdoors.

If opening connects directly to, or within vertical duets, the free area of each opening must be at least 1 square

inch per 4000 Btuh combined input of appliances in area.

m9--

188 219

281 312 375

Combustion & Ventilation Air (cont.)

If horizontal ducts are used, the free area of each open- ing must be at least 1 square inch per 2000 Btuh com-

bined input of appliances in area.

GRILLES CONNECTING ROOMS TO MAKE

UNCONFINED SPACE

FOR EXAMPLE: Your furnace is rated at 80,000 Btu per hour. The water heater is rated at 30,000 Btu per hour. The

total is 80,000 Btu per hour. You need two grilles, each with 20 square inches of free opening, unless connected by horizontal ducts which would require each grille or open- ing to have a free area of 40 square inches.

Recessed Mount Installation

FIND THE STUDS (See CAUTION on page 6)

Use a stud Iocator or small finishing nails. Repeatedly drive and remove a nail into the wall in the area of the

stud until it is located. Then find the inside edge of the stud. Leave the nail at this location.

The other stud should be about 14-1/2 inches from the

one found. Drive finishing nails on the insides of this stud. Draw wall cut out to required size as shown in Fig. 13,

page 12. If wall studs are not on 16 inch centers see

"CLOSE OFF STUD SPACE," Fig. 12, page 12.

*Openings for inlet or outlet air should not be made into attic area if attic is equipped with a thermostat controlled

power vent.

FREEAREA IN SQ.INCHES - EACHOPENING (FURNACE

ONLY) - BASEDON ONE SQ. INCH PER 4000 8TUH

Furnace

Btuh / Input

30,000 35,000 40,000 45,000 50,000 60,O00

Sq, Inch Sill or Header Plates

of Opening 1_/2'' 2" 3"

7.5 7 4 2

8.75 8 5 2

10.0 9 5 3

11.25 10 6 3

12.5 11 6 3

15.0 13 8 4

Req'd Number of Holes

CUT WALL OPENING

Provide an opening as shown in Fig. 10, page 11. Work

from the top in the attic to cut away the ceiling plate.

ATTACH HEADER PLATE

MODELS: 5508331; 5508332; 6508731; 6508732

Locate header plate (Fig. 10, page 11) between wall studs at 88V2 inches from finished floor and nail into position

with end flanges pointing up.

--10--

Recessed Mount Installation (cont.)

See Fig. 10. MODELS: 5008731; 5008732

Locate header plate between wall studs at 821/2 inches from finished floor and nail into position with end flanges

pointing up. MODELS: 3508331; 3508332; 3508731; 3508732

Locate header plate between wall studs at 74 inches from finished floor and nail intoposition with end flanges point-

ing up,

ALL MODELS

Hole for electrical conduit is located on left side of header plate as you face the wall.

WARNING

REMOVE 4x14 FIBERGLASS GASKET FROM BOT- TOM OF HEADER PLATE AND DISCARD. THIS GASKET IS NOT USED WHEN THE FURNACE IS

RECESSED IN THE WALL.

GAS SUPPLY OPENING A hole must be drilled for the gas line supply.

Decide whether the gas line will come through the floor or wall stud.

NOTE

If a pre-existing gas piping stub location is not compati- ble with hole or knock-out provided in furnace, you may make an alternate entry hole in furnace back wall per Fig.

13, page 12.

CAUTION

Be careful not to damage any furnace components

while making any alternate hole.

Locate and drill one (1) 1-1/2 inch hole at selected loca- tions per Fig. 11and Fig. 13, page 12 or Fig. 14, page !3.

Gas line can be run at this time or done after furnace is mounted, see section GAS SUPPLY AND PIPING, page 17.

F-

_LEXIBLE

ELECTRIC,

ONDUIT

CONVENI ENCE-_

OUTLET

f -- . j

B/W VENT PIPE

(NOT SUPPLIED)

7_r HOLD-DOWN OR

STARTER PLATE

_(NOT SUPPLIED)

HEADER

PLATE

,'- FINISH

FLOOR

N01_: WALL BOARD &

FLOOR PLAI_

REMOVEDFOR

RECIE_ MOUNT

ONLY

SURFACE _ MOUNTING MOUNTING

CLOSE OFF STUD SPACE (If Required)

If studs are not on 16 inch centers, cut the hole for the

furnace next to an existing stud and frame in the other side

using a 2 x 4 and spacer blocks as required. See Fig. 12,

page 12.

ELECTRICAL SUPPLY ROUGH-IN

Run the electrical supply with the ground wire and ther- mostat cable into stud space above furnace location.

--11 m

Recessed Mount Installation (cont.)

CLOSE OFF STUD SPACE (If Required)

PLA'I_

F I_]b-I1NG b-lUD

Ill

II NEW S'IUD

111

III

E_S71NG S31JDt

]

I -- 14-_/8"_-

..... LI-1 r-!U-I......

If desired, the power supply and thermostat cable can come into the wall stud space from a basement, crawl

space or an adjoining stud space. Terminate flexible electrical conduit at the junction box

located on the underside of the header plate. Leave the wires long enough to connect inside the junction box to

the convenience outlet.

SPACER

III

H I

CAUTION

Do not run wire behind flanges of header plate or in any location where it might be damaged. Avoid

splicing thermostat wire unlessthe spliced wires are properly cleaned, soldered and taped.

.,_,- FRONT

TOP ELEC

_,/" CONN.

[41C ",+--141/6"-_-

BOTTOM

(1) MODELS: 5508331; 5508332;

6508731 ; 6508732 (2) MODELS: 5005731; 5008732 (3) MODELS: 3508331; 3508332;

3508731; 3508732

Surface Mount Installation

FIND THE STUDS AND CEILING JOISTS

(See CAUTION on page 6)

Find two studs at spot where furnace is to be placed. Use a stud indicator or small finishing nails. Repeatedly

drive and remove a nail into the wall in the area of the stud until you find it. Then find one side. Leave the nail

there. Drive another nail just on the other side of the same stud.

Inside edge of the other stud should be about 14-1/2 inches from the one found. Drive finishing nail on inside

edge of this stud.

Using the nails as a guide, draw a line up both sides to

the ceiling to locate hole cut out for vent pipe and elec- trical connections.

CUT CEILING OPENING Mark off and cut 3-1/2 x 12 inch rectangular hole in ceil-

ing, centered between wall studs. The back edge of the opening should be about 1/8 inch from the wall. See Fig.

16, page 14.

ELECTRICAL SUPPLY ROUGH-IN

The electrical supply openings must be made in the wall

or ceiling above furnace to match holes in furnace top. Holes in furnace top are 1 inch from the left side of fur-

nace. See Fig. 13. If desired, the power supply and thermostat cable can

come into the wall stud space from a basement, crawl space or an adjoining stud space.

--12--

Surface Mount Installation (cont.)

At selected location, drill a 1 inch hole for 115V power supply and a 1/2 inch hole for the thermostat cable.

Run wiring through holes to above furnace top leaving

enough excess wire to make electrical connections after

mounting furnace.

CAUTION

Toavoiddamage towiring, be sure to route wire away from path of furnace vent.

GAS SUPPLY OPENING

A hole may need to be drilled for the gas line supply.

Decide whether the gas line will come through the floor

or wall.

NOTE

If you decide to route gas line through right side of fur-

nace, simply remove the knock-out provided in furnace side.

CAUTION

while making any alternate hole.

I e careful not to damage any furnace components

Locate and drill one (1) 1-1/2 inch hole at selected loca- tion per Fig. 11, page 11; Fig. 13, page 12; or Fig. 14.

Gas line can be run at this time or done after the furnace is mounted, see section CONNECTING GAS LINE.

ALTERNATE GAS SUPPLY OPENING

NOTE

If a pre-existing gas piping stub location is not compati- ble with hole or knock-out provided in furnace, you may

make an alternate entry hole in furnace back wall per Fig. 14.

General Vent Installation

The vent installation must comply with all local codes and

ordinances. If in doubt, consult your local codes or inspector.

The furnace vent must be directed to the outdoors so that harmful combustion gases will not collect inside the

building. This furnace must not be connected to a chimney flue

serving a separate solid-fuel burning appliance. Use U.L. listed B/W Vent Kit 9901. You must provide other

items, not contained in kit, necessary to complete your specific venting situation through the roof. Refer to typical venting system shown in Fig. 18, page 15.

Type B/W gas vent shall extend from the header plate of the vented wall furnace to a point above the highest ceil- ing plate within a stud space through which the vent

passes, without any offsets or crossovers thei'ein. After a type B/W gas vent passes through the highest ceiling plate within a stud space above the furnace which it

ALTERNATE GAS SUPPLy---"%._I )--'t

ENTRy LOCA]10N

GAS SUPPL_ ENTRy HOLES

serves, the vent system may be completed with a type B gas vent, of the same manufacturer, and offsets or

breakovers shall not be greater than 45 degrees from

vertical.

NOTE

The B/W vent must extend through the ceiling and roof terminating at least 12 feet above the finished floor on

which the furnace rests.

First vent pipe offset (if required) is recommended not to be any closer than 2'-0" from header plate.

ATTACH HEADER & HOLD-DOWN PLATE

(SURFACE MOUNT)

Remove the fiberglass flue collar from the furnace flue extension. This gasket is not used when the furnace is sur-

face mounted.

Make sure that the 4 x 4 inch gasket is in position on the header plate.

--13--

General Vent Installation (cont.)

Discard the three (3) square gaskets, as they are not used when furnace is surface mounted.

Slide header plate over the furnace flue extension with the junction box entering the opening in top of furnace.

Refer to Fig. 15.

Fasten to matching holes in the furnace top through holes "A" in the header plate, using two (2) #8 x 3/8 inch screws

provided.

Fasten the hold-down plate or starter plate to the top of

the header plate using holes "B" in the header plate.

j ,,g,,

ALL MODELS

ATTACH HOLD-DOWN PLATE (RECESSED MOUNT) NOTE

INSTALL CEILING PLATE SPACERS (SURFACE MOUNT)

Refer to Fig. 16. Only one (1) plate spacer is required for surface mount-

ing within a single story dwelling. Cut 2 inches off each end of plate spacer. Drill two (2) 3/16 inch holes in each end of plate spacer.

See Fig. 18, page 15.

Fasten plate spacer to wall by nailing through one (1)

drilled hole in each end, into the wall board and ceiling

plate. INSTALL CEILING PLATE SPACER

(RECESSED MOUNT)

Refer to Fig. 17.

Two ceiling plate spacers are in the B/W vent kit. They

mustbe fastened along each longedge of the ceiling hole

to hold the oval vent pipe in the center of the hole.

Nail the ceiling plate spacers either across or in between

the cut out section of ceiling plate. If nailed between, ends

must be bent at 90 degrees.

Header plate should already be attached to wall studs. See ATTACH HEADER PLATE, page 10 and 11.

Fasten hold-down plate to top of header plate using two

(2) screws provided.

CEILING PLATE

"_" r,_4_3V2 CENTERED ON

!1 a/w VENT

TOP ___ HOLE IN

HOLD-DOWN OR

RTER PLATE

r_ (NOT SUPPLIED)

FRONT

SIDE

HEADER PLATE

CEILING PLATE SPACERS - RECESSED MOUNT

_ 14 318

INSTALL SURFACE VENT (SURFACE MOUNT) NOTE

For surface mounting, it willbe helpful to complete the gas piping supply to the furnace before installing the vent pipe. See section GAS SUPPLY & PiPiNG, page 17.

Carefully move the furnace into position under the ceiling cutout.

Insert first lengths of oval, double wall vent pipe up through the ceiling cutout.

--14 m

General Vent Installation (cont.)

TYPICAL VENT INSTALLATION

Vl_IT CAP "rOBE AMINo OF2 FT. HIGHER

THANANYpOINT_ 10 FT. OF _rr C_

HEADER PLA1E

2 E_DS

FLUE

COLLAR

QAS_£T

Lower vent pipe to the hold-down plate. Push the vent pipe into the hold-down plate until it is completely seated. (Hold-down cleats will engage the groove in the vent pipe.)

Secure hold-down plate to vent pipe using two (2) screws.

Using plumbers tape to secure vent to the plate spacer, nail through one (1)hole in each end of plate spacer, into

the wall and ceiling plate.

INSTALL FURNACE VENT (RECESSED MOUNT)

Lower first lengths of oval, double wall vent pipe through the plate spacers to the hold-down plate.

Push the vent pipe into the hold-down plate until it is com- pletely seated. (Hold-down cleat will engage the groove in the vent pipe.)

Secure hold-down plate to vent pipe using two (2) screws.

COMPLETE THE VENTING

Refer to Fig. 18. Install oval to round adapter. Complete the piping extend-

ing it through the roof. Use 4" round, double wall (Type B) vent pipe, roof flashing, storm collar, and vent top as shown. The vent cap must be at least 2 feet higher than any point that is within 10 feet horizontally of the vent cap.

There must be at least 1 inch clearance between the vent pipe and any combustible material.

Mounting Your Furnace

To obtain adequate clearance for fastening furnace or to

install gas supply fittings, it may be necessary to remove

the burner and control assembly as follows:

Remove burner compartment door by pulling door top out and up.

Locate the air discharge shield. It is secured across the

top of the burner control compartment. Remove two (2)

screws and shield and set aside.

DISCONNECT WIRING MODELS 3508331; 3508332; 5508331; 5508332

Remove the screws holding the ignition control unit and cover to the furnace casing.

Disconnect wires to free control module from its mount- ing location. Mark or tag each wire removed for its exact

reconnection. See Fig, 19, page 16,

IMPORTANT

Area above header within the stud space MUST be kept clear of any attic insulation to allow the free circulation of air around oval vent piping.

ALL OTHER MODELS Disconnect two (2) 24 volt wires from the gas valve.

Disconnect two (2) wire connectors from junction block

midway on the thermocouple.

REMOVE BURNER AND CONTROLS MODELS: 3508331; 3508332; 3508731; 3508732

Locate the burner and screwsthat secure it. Remove the

two (2) screws (one from each end). Lift one end of the

burner at a time until free. Remove burner and controls

from the compartment. ALL OTHER MODELS

Locate the burner and hex nuts that secure it. Remove

the two (2) hex nuts (one from each end). Flip up the wire

hinges. Lift one end of burner at a time until free. Remove burner and controls from the compartment.

--15--

Mounting Your Furnace (cont.)

Straighten the furnace by pushing furnace bottom intothe stud space.

IMPORTANT

AFTER FURNACE HAS BEEN PLACED IN POSITION, MAKE SURE THE GASKETS ARE PRESSING AGAINST

THE FURNACE TOP TO ELIMINATE AIR LEAKS.

FASTEN FURNACE BOTTOM (SURFACE AND RECESSED MOUNT)

24V PV

SEt6

24V

GND

lnV

GND

WILLIAMS IGNITION CONTROL

PART NUMBER P321910

LA707-01 .DWG

POSITION FURNACE (RECESSED MOUNT ONLY) NOTE

If your furnace is surface mounted, your mounting was started during VENT INSTALLATION, page 13.To complete

furnace mounting, go on to FASTEN FURNACE BOTTOM on this page.

ALL MODELS

Make sure that the flue collar gasket, Fig. 18, page 15, is in place over the flue extension. Check to see if header plate gaskets are in place.

NOTE

Fasteners are not furnished because of different require-

ments of various types of wall construction.

Fasten furnace to floor through holes provided in furnace bottom. If you have concrete flooring, use an alternate

fastening method. See Fig. 20.

If burner and control assembly were removed, replace

them by reversing "DISCONNECT WIRING" and

"REMOVE BURNER AND CONTROLS" sections on

page 15.

FURNACE MOUNTING

- METAL ANOH(_

TOP FASTENING

II I

Hold the furnace at a slight angle (top closer to the wall than bottom) with the flue extension centered under the oval hole in the header plate.

NOTE

Electrical wiring should already be routed to the header plate. If not, see sections on ELECTRICAL SUPPLY

ROUGH-IN, page 12. Place three (3) square gaskets over the junction box. See

Fig. 18, page 15.

ALL MODELS

Lift furnace up so that the flue extension enters the oval hole in the header plate.

NOTE: DO NOT U_ BOTTOM DOOR _ FOR MOUNTING

--16--

Mounting Your Furnace (cont.)

IMPORTANT

TO PREVENT DAMAGE TO WIRING, MAKE SURE NOT TO PINCH THE WIRES BETWEEN FURNACE

COMPONENTS. KEEP THEM ROUTED AWAY FROM THE BURNER.

Resecure the air discharge shield across the top of the burner and controls compartment, Small leg of "L" shape must be positioned toward floor, pointing away from front

of furnace.

over the back flange of furnace top and screwing to wall. See Fig. 20, page 16.

FASTEN FURNACE TOP (RECESSED MOUNTING)

Fasten furnace top by drilling two (2) holes through the side flanges of furnace top and securing with two (2)

screws or nails into the wall studs. See Fig. 20, page 16.

FASTEN FURNACE TOP (SURFACE MOUNTING)

Fasten furnace top to wall using two (2) metal anchors

(packed in plastic bag with thermostat) by placing them

Gas Supply and Piping

Gas control valve, within the furnace, is shipped with a seal over gas inlet tapping. Do not remove seal until ready

to connect piping.

WARNING

DANGER OF PROPERTY DAMAGE,

BODILY INJURY OR DEATH.

MAKE SURE THE FURNACE IS EQUIPPED TO OPERATE ON THE TYPE OF GAS AVAILABLE. MODELS DESIGNATED AS NATURAL GAS ARE TO

BE USED WITH NATURAL GAS ONLY, FURNACE DESIGNATED FOR USE WITH LIQUIFIED

PETROLEUM (L.P) GAS HAVE ORIFICES SIZED FOR COMMERCIALLY PURE PROPANE GAS,

THEY CAN NOT BE USED WITH BUTANE OR A MIXTURE OF BUTANE AND PROPANE.

CAUTION

Becareful notto damage furnace components or wir- ing when drilling holes,

GAS PIPING

The gas supply line must be of adequate size to handle the BTU/HR requirements and length of the run for the

unit being installed. Determine the minimum pipe size from Fig. 23, page 18,

basing the length of the run from the gas meter or source

to the unit.

DROP

I PIPED CR0UN0 JOINT

SUPPLy

i_ I GAS aN,0N

GAS SUPPLY

For Natural gas, the minimum inlet gas supply pressure for the purpose of input adjustment is 5" water column. The Maximum inlet gas supply pressure is T' water

column. For L.E gas, the minimum inlet gas supply pressure for

the purpose of input adjustment is 11" water column. The maximum inlet gas supply pressure is 13" water column.

Gas pressure and input to the burners must not exceed the rated input and pressure shown on the rating plate. On

Naturel Gas the manifold pressure should be 4 inches water column. The manifold pressure should be 10.5 inch- es water column for L.P. Gas. See page 32 for operation above 2000 feet altitude Office change may be required to

suit gas supplied. Check with your local gas supplier. ORIFICE SIZES

Furnace Technical Information, page 32, shows the

correct orifice sizes for the different input ratings when

using Natural or L.P Gas.

tlANUAL SHUT OFF

VALVE

DF(Op

--17--

Gas Supply and Piping (cont.)

CHECKING THE GAS PIPING

PROPER PIPING PRACTICE

2 IMPERFECT CONTRO L USE MODERATE AMOUNT OF DOPE

THREADS _

THREAD PIPE RIGHT LENGTH LEAVE 2 END THREADS [IARE "

All piping must comply with local codes and ordinances or with the National Fuel Gas Code (ANSI Z223.1),

whichever applies. In Canada: Follow CAN 1-B149 Installa- tion Code.

Refer to Fig. 21, page 17,for the general layout at the unit. It shows the basic fittings needed.

The following rules apply:

1. Use new, properly reamed pipe free from chips such as steel or black iron pipe and fittings or other

approved by local codes.

2. Do not thread pipe too far. Valve distortion or mal- function may result from excess pipe within control. Apply moderate amount of good quality dope to pipe only, leaving 2 end threads bare. If LP Gas installation,

use compound resistant to action of liquified petroleum gases.

3. Use ground joint unions.

4. Install a drip leg to trap dirt and moisture before it can enter the gas valve. Drip leg must be a minimum of 3

inches long.

5. Install a manual shut-off valve.

6. Provide a 1/8 NPT test gauge connection immediately before the gas supply connection to the furnace.

GAS CONNECTION If installation is for L.R Gas, have L.R installer use two-

stage regulation and make all connections from storage

tank to furnace.

Use two pipe wrenches when making the connection to

the valve to prevent turning or damage to gas valve.

Connection between manual shutoff valve and burner con-

trol assembly can be made with an A.G.A./C.G.A. design

certified flexible connector if allowed by local codes. Drip leg and ground joint union are still required.

Tighten all joints securely.

Test all piping for leaks. When checking gas piping to the furnace with gas pressure less than 1/2 PSI, shut off manual gas valve for the furnace. If gas piping is to be checked with the pressure at or above 1/2 PSI, the fur-

nace and manual shut off valve must be disconnected dur- ing testing. (SEE WARNING BELOW.) Apply soapsuds (or

a liquid detergent) to each joint. Bubbles forming indicates a leak. Correct even the slightest leak at once.

GAS PIPE SIZES

NATURAL GAS

PIPE CAPACITY - BTU PER HOUR

(INCLUDES FITTINGS)

PIPE SIZE

LENGTH OF

PIPE - FEET 1/2 inch 3/4 inch 1 inch

20 92,000 190,000 350,000

40 63,000 130,000 245,000 60 50,000 105,000 195,000

L.P. GAS

PIPE CAPACITY - BTU PER HOUR

(INCLUDES FITTINGS)

LENGTH OF

PIPE - FEET 1/2 inch 3/4 inch 1 inch

20 189,000 393,000 732,000 40 129,000 267,000 504,000 60 103,000 217,000 409,000

WARNING

DANGER OF PROPERTY DAMAGE,

BODILY INJURY OR DEATH.

NEVER USE A MATCH OR OPEN FLAME TO TEST FOR LEAKS. NEVER EXCEED SPECIFIED PRESSURES FOR TESTING. HIGH PRESSURES MAY DAMAGE THE GAS VALVE AND CAUSE OVER-FIRING WHICH MAY RESULT IN HEAT EXCHANGER FAILURE. LIQUID PETROLEUM

(L.P.) IS HEAVIER THAN AIR AND IT WILL SETTLE IN ANY LOW AREA, INCLUDING OPEN DEPRES-

SIONS AND IT WILL REMAIN THERE UNLESS

AREA IS VENTILATED.

NEVER ATTEMPT STARTUP OF UNIT BEFORE

THOROUGHLY VENTILATING AREA.

Electrical Wiring

All electrical work must conform to your local codes and ordinances or in their absence, with National Electrical

Code, ANSI/NFPA 70. If you are not familiar with wiring codes, in general, have a competent electrician do this

job. In Canada: Follow C22.1, Canadian Electrical Code.

ELECTRICAL CONNECTION REMOVE FAN SHROUD

Take out four screws holding fan shroud to side flanges

of cabinet and remove shroud. See Fig. 1, page 5.

m18m

WARNING

DANGER OF PROPERTY DAMAGE,

BODILY INJURY OR DEATH.

TURN OFF ELECTRIC POWER AT FUSE BOX OR SERVICE PANEL BEFORE MAKING ANY ELECTRICAL CONNECTIONS.

INSULATE WHERE NECESSARY. ALL LINE VOLTAGE AND GROUND CONNEC-

TIONS MUST BE COMPLETED BEFORE

ELECTRICAL POWER IS RESTORED.

LOW VOLTAGE CONNECTIONS

CAUTION

The Heat Anticipator WILL BURN OUT if 24 voltsare

applied directly to thermostat by shorting out the gas

valve or primary control during testing or by incorrect wiring.

WALL THERMOSTAT WIRING

ELECTRICAL POWER SUPPLY

A branch circuit including this furnace must not exceed

15 Amperes, or run a separate 115V, 60 Hz, 15 Ampere circuit from a separate circuit breaker or fuse in your ser- vice entrance panel to the furnace junction box. Do not run supply wires inside the furnace cabinet, except from the top of cabinet down to junction box.

JUNCTION BOX

CAUTION

Be careful not to damage the fan blade when mak- 1 ing the 115V connection to the convenience outlet.

115V supply wiring connection is made within the upper

left corner of the furnace cabinet.

Locate 115V plug and push into the convenience outlet attached to the bottom of header plate. (It protrudes through the rectangular opening in the furnace top.)

Run thermostat wire to the furnace.

Avoidsplicingthermostat wire unlessthe spliced wires are properly cleaned, soldered and taped.

Connect thermostat to two wires marked "Thermostat" extending from top of furnace, using two wire nuts pro-

vided. See Wiring Diagrams, pages 37 or 38.

CAUTION

Do not connect 115V service line to the gas control

valve or the wall thermostat.

]

ALL MODELS

Reinstall fan shroud to furnace front. Slots in fan shroud allow up/down adjustment. Make sure the fan blade spins

freely. Tighten screws securely.

Replace top front panel and secure with thumbscrew.

Refer to paragraph covering GAS AND ELECTRICAL SUPPLY OPENINGS, page 13. Follow Wiring Diagrams, pages 37 or 38.

If you have any doubt regarding electrical hookup, or com- pliance with code or ordinance, consult your electrical in- spector or a licensed electrician.

GROUNDING

A ground lug is installed for the ground connection. Use a copper conductor (#14 AWG) from the unit to a ground- ed connection in the electric service panel or a properly

driven and electrically grounded ground rod.

COMPLETE WIRING DIAGRAMS ON PAGES 37 AND 38.

I19--

Thermostat Installation

1. If an old thermostat is being replaced and is in a satisfactory location and the wiring appears to be

in good condition, use existing wiring. If in doubt, use new wire.

2. If a new location is chosen or if this is a new installa- tion, thermostat cable must first be run to the location

selected. All wiring must agree with local codes and ordinances. These instructions cover bringing the wire

down from the attic but it can be run from a basement or crawl space using similar methods. Refer to Fig. 24.

3. Before drilling hole in wall at selected location, drive

a small finishing nail through the ceiling in the corner of the wall and ceiling above the thermostat location.

Pull the nail out and push a small stiff wire through the hole so it can be found in the attic. Drill a 1/2 inch hole

through the ceiling wall plate.

4. Probe for obstructions in the partition. Then drill a 1/2 inch hole through wall at selected location for

thermostat.

5. From the attic, feed the thermostat cable or a stiff wire through wall until even with thermostat location.

6. Snag thermostat cable through hole and pull cable through hole in wall so that 6 inches of cable protrudes.

7. Route cable to wall furnace.

ROUTE THERMOSTAT CABLE

Ske,AL t FINISH NAIL TO LOCATE

HEADER

THERMOSIAT

CABLE

STIFF WIRE TO SNAG

CABLE

MOUNTING THE THERMOSTAT

1. To remove thermostat cover, squeeze both sides and lift. See Fig. 25.

2. 'Connect thermostat wires to the terminal screws on the thermostat base.

3. Push any excess wire back through hole in wall and plug hole with insulation to prevent drafts from affect- ing thermostat operation.

4. Being sure to level thermostat for best appearance, fasten thermostat base to wall through mounting holes with screws provided.

5. Replace the thermostat cover.

THERMOSTAT HEAT ANTICIPATOR

SET THE THERMOSTAT HEAT ANTICIPATOR

A simple method of setting the heat anticipator in a 24-volt thermostat (without an A.C. ammeter) is to first read the

label on the gas control valve and match its rating.

Example: If the ampere draw for the valve is .5 amps,

set thermostat heat anticipator at the same setting (.5). (Fig. 26, page 21.)

ADJUST THERMOSTAT ANTICIPATOR

Many factors affect this setting -- room size, length of ther- mostat wire, thermostat location, etc. Additional small

adjustments to increase or decrease heating cycles (4-6 per hour typical) may be required. If an amp meter is

available, see instructions supplied with thermostat.

SQUEEZE RR_4LY SOl1"1SIDES

AND UFT 110 R£_IO_,_COVER

t,/_r/...oa.l=t_

NOTE Use heavier wire size if more than 20 ft. of wire is required.

--20--

Thermostat Installation (ton't)

MV"--X.-_J_ -LONGER

HEATAN 0,P TOR

SETTING '_ u_.-_,._m

For longer "ON" time, move anticipator clockwise.

For shorter "ON" time, move anticipator counterclockwise.

.---,.- 1.0 .-'-- CYCLE

Optional Accessory Installation

NOTE

Refer to installation instructions packed in the thermostat

carton if you have any doubt about the above procedures. When all is adjusted properly, the furnace burner should

shut off slightly before the desired room temperature is

reached. The stored heat in the appliance is enough to bring room temperature up to desired level. The heat anticipator thus makes it possible to maintain very close

temperature control.

SIDE OUTLET NO. 6701

REAR OUTLET NO. 6801

SHORT REAR OUTLET NO. 6802

CAUTION

Use only Boots and Grilles provided by the manufacturer.

CLEARANCES

IMPORTANT

Carefully follow all measurements and clearances given to ensure proper installation.

When SiDE OUTLET 6701 is used, the furnace casing

must be exactly 4 inches from an adjacent side wall

(except may be 3/4" minimum when 1-WAY FRONT

DIFFUSING GRILLE is used). See Figs. 28 and 29, page 22.

CUT WALL OPENING(S)

Make an opening(s) in the wall(s) for a Side and/or a Rear Outlet Register. See Fig. 27.

CUT WALL OPENING

SIDE OUTLET REAR OUTLET

II . II

FURNACE "BACK" AGAINST WALL _

°IIs'_os/ II

a-1/4" L_

ll-s/8"

Ill I IR,-v,-

.-s/s'! I II

l II 11

F1NI_tlE9FLOOR,-J_

RNISHED FL_

When REAR OUTLET 6801 or SHORT REAR OUTLET 6802 are used, the furnace casing must be a minimum

of 12 inches from an adjacent side wall. See Figs. 3D and 3F, page 7.

CUT CASING OPENING(S)

Before setting the furnace into position, cut a 5 x 7 inch rectangular opening for Side Register, or 7 x 11 inch open-

ing for a Rear Outlet Register where marked on the fur- nace casing. Cut carefully as edges must be straight and smooth. See Fig. 13, page 12.

--21--

/1/1 m '"

3/4" MIN WHEN OPTIONAl, "J_ - 6704 ONE-WAY 3/4"

FRONT DIFFUSING GRILLE IS USED

Optional Accessory Installation (cont.)

INSTALL PLASTERGROUNDS

Install Plastergrounds as shown in Figs. 29 and 30. Flanges of Plastergrounds extend the normal thickness of plaster. If "DRYWALL" or other thin material, flanges

must be trimmed off flush with wall surface.

REAR PLASTER GROUND CENTERS EXACTLY ON THE BACK OF THE HEATER

- PLASTER GROUND

1/4 ROUND METAL

TRiM FILLER

Press Inner Boot against furnace Inner Liner, mark and

cut off flush with the wall surface.

Fasten Outer Bootsecurely to furnace casing with screws provided.

EXACTLY 41/2 FROM BACK OF THE HEATER

" GROUND

._ ._ PLASTER

15_/4"

FLOOR

MOUNTING

Refer to Fig. 31. BEFORE placing the furnace into position, place Out Boot

against the furnace casing with inside of flanges exactly on edges of hole in casing. Mark hole locations on cas- ing through the holes in Out Boot flanges

Drill #33 holes in casing at marked locations. Remove knockout plate and knockouts for screws from

Inner Liner.

SIDE REGISTER ONLY Secure a 1 x 1 wood strip (not included in this kit) to wall

surface next to side outlet as a backup for metal filler strips.

Fasten metal filler strips to side of furnace casing with front

surface exactly opposite front of wood backup strip. SIDE AND REAR OUTLET REGISTERS

Place furnace in position.

With furnace in position, pass Outer Boot through Plaster- grounds, holding it firmly against furnace casing. Mark and

cut off the end of the Outer Boot flush with the wall surface.

SIDE OUTLET ONLY Positioninner Bootagainst furnace Inner Liner and fasten

securely through all holes with screws provided.

REAR OUTLET ONLY

Ptace Inner Boot in position and fasten with screws along the top and bottom edges only. Place Damper Assembly inside Inner Boot and fasten with one (1)screw on each side. Thread chain through key hole in clip on Outer Grille

and attach the Bell end.

SIDE AND REAR OUTLETS

Place Outlet Grille into position, drill through the wall material and Plasterground with a #33 drill bit, using the holes in grille as a template and secure with screws provided.

VENT ENCLOSURE KIT INSTALLATION (SURFACE MOUNT ONLY)

Refer to Fig. 32, page 23.

Cut Side Panels to fit between the top of furnace casing and ceiling.

Fasten Side Panels to wall parallel to furnace casing sides.

Cut Front Panel height to fit. Note that the bottom edge of

Front Panel is notched to fit into the furnace casing recess. Fasten Front Panel to Side Panels with screws provided.

SIDE CASING GRILLE KIT NO. 6702 See clearances Fig. 33, page 23.

Locate marked opening(s) on furnace casing. Mark

and cut an opening 1 inch wider than opening already

marked (1/2 inch larger on all four sides). See Fig. 13,

page 12.

Remove knockout plate and knockouts for screws from fur- nace inner liner.

--22--

Optional Accessory Installation (cont.)

Fasten Boot to Inner Liner with screws provided. NOTE

Using holes in grille as a template, drill two (2) #33 holes Quarter-round wood molding may be used for trim if

in out casing and fasten securely with screws provided, desired, which may be painted to match the wall.

CEILING

VENT

ENCLOSURE

FRONT

OPTIONA _L_I h_OPTIONAL

OUTLET _ II_ 0UTLET

KIT 6702 _I _'" KIT 6702

o(Nill

JOIST

B/W

VENT

:VENT

ENCLOSURE

!ILING

LOWER DOOR CASING

OPTIONAL TWO-WAY DIFFUSING GRILLE 6703

_OPTIONAL REAR

DISCHARGE

T W O -WAY

OIFFU SING--_ GRILLE KIT 6703

'll \\k-,2

--4

2-WAY FRONT DIFFUSING GRILLE KIT NO. 6703

Refer to Fig. 34.

CAUTION

For use only in conjunction with a front outlet when the furnace is spaced at least 12 inches from an in- tersection wall (see Fig. 35).

Metal clips on backside of grille snap into side louvers of front warm air outlet. Adjust clips with pliers if necessary. Grille may also be attached with sheet metal screws.

1-WAY FRONT DIFFUSING GRILLE KIT NO. 6704

Follow instructions for 2-WAY FRONT DIFFUSING GRILLE 6703 above, except furnace clearance to an adjacent wall

must be 3/4 inch minimum. See Fig. 28, page 21.

TRIM STRIP KIT NO. 4701

When desired, optional Trim Strip Kit may be used to cover the crack between furnace and wall. See Figs. 36 and 37. Place strips tight against furnace with other edge against wall surface and fasten to wall with escutcheon pins pro- vided. Cut off trim strips to fit each furnace as required.

KIT 470R_

OPTIONAL TRIM ST WALL WITH FASTENERS PROVIDED

VENT COVER j

,==..

]

TRIM

MOULDING

(OPTIONAL}

INSTALL VENT COVER (PROVIDED) (RECESSED MOUNT ONLY)

Place Vent Cover on top of furnace, see Fig. 37.Press snug against wall and secure through bottom to top of furnace

with screw provided.

--23--

Start-Up Procedure

Start the furnace using the procedures in section OPERATING YOUR FURNACE.

WARNING

DANGER OF BODILY INJURY OR DEATH.

LIQUIFIED PETROLEUM L.P. GAS IS HEAVIER THAN AIR AND IT WILL SETTLE IN ANY LOW AREA, INCLUDING OPEN DEPRESSIONS AND

IT WILL REMAIN THERE UNLESS AREA IS

VENTILATED. NEVER ATTEMPT START-UP OF UNIT BEFORE

THOROUGHLY VENTILATING AREA.

Check the furnace operation as outlined in the following instructions. If any sparking, odors or unusual noises are encountered, shut off electric power immediately. Recheck for wiring errors, or obstructions in or near fan motor.

WARNING

NATURAL GAS HEATING VALUE (BTU PER CUBIC FOOT) CAN VARY SIGNIFICANTLY, THEREFORE,

IT IS THE INSTALLER'S RESPONSIBILITY TO SEE

THAT BTU INPUT TO THE FURNACE IS ADJUSTED

PROPERLY. FAILURE TO DO SO COULD CAUSE HEAT EXCHANGER FAILURE, ASPHYXIATION, FIRE

OR EXPLOSION, RESULTING iN DAMAGE, BODILY INJURY OR DEATH. REFER TO THE NATIONAL

FUEL GAS CODE (NFPA-54)TO BE SURE THE FUR- NACE IS BURNING FUEL AT THE PROPER RATE.

manometer having a scale range from 0 to 12 inches of

water should be used for this measurement. The manifold pressure must be measured with the burner and pilot

operating. Any major changes in flow must be made by changing the size of the burner orifice. Check with your local gas supplier for proper orifice sizing.

CHECK THE GAS INPUT (NATURAL GAS ONLY) To measure the input using the gas meter, proceed as

follows:

1. Turn off gas supply to all other appliances except the furnace.

With the furnace operating, time the smallest dial on the meter for one complete revolution. If this is a 2 cubic foot dial, divide the seconds by 2; if it is a 1 cubic foot

dial, use the time in seconds as is. This gives the seconds per cubic foot of gas being delivered to the

furnace.

3. Assuming natural gas with aheating value of 1000 Btu per cubic foot and 34 seconds per cubic foot used as determined by step (2), then:

Second per hour = 3,600

Input = 1,000 x 3,600 + 34 =106,000 BTU Per Hour

This measured input must not be greater than the in- put indicated on the rating plate of the furnace.

4. Relight all other appliances turned off in step 1above. Be sure all pilot burners are operating.

Underfiring could cause inadequate heat, excessive conden- sation or ignition problems. Overfiring could cause soot- ing flame impingement or overheating of heat exchanger.

Before starting natural gas input check, obtain heating value of gas (BTU per cubic foot) at standard conditions

from your local supplier. This factor is used in "Check the Gas Input" section and procedure.

CHECK GAS INPUT AND PRESSURES For furnace located at elevations between sea level and

2000 feet, the measured input must not be greater than the input shown on the rating plate of the furnace. For elevations above 2000 feet, the measured input must not exceed the input of the rating plate reduced by 4 percent

for each 1000 feet that the furnace is above sea level. Gas supply pressure and manifold pressure with the burners

operating must also be as specified on the rating plate.

Type of Gas Manifold Pressure, In. W.C.

Natural 4

LP. 10.5

Rated input will be obtained on 2500 Btu propane at 10.5 inch manifold pressure with factory-sized orfices. If LP gas having a different heating value is supplied, offices must be changed by a qualified service technician before the furnace is operated.

ADJUST PILOT BURNER (STANDING PILOT MODELS ONLY)

Pilotflame should surround 3/8 inch to 1/2 inch of the ther-

mocouple tip. Toadjust, remove pilot adjustment screw on gas valve. Turnscrew counterclockwise to increase flame,

clockwise to decrease. Replace cap. CHECK THERMOSTAT

Check thermostat operation. When set above temperature shown on the thermostat, the main burner should light.

Make certain the thermostat turns off the furnace when room temperature reaches the selected setting and starts

the furnace when room temperature falls a few degrees.

MAKE SURE THERMOSTAT ANTICIPATOR IS SET PROPERLY, SEE PAGE 20.

THERMOSTAT (TYPICAL)

CHECK THE MANIFOLD GAS PRESSURE

A tapped opening is provided in the gas valve to facilitate

measuring the manifold gas pressure. A "U Tube"

SEI"_G

--24 m

Operating Your Furnace

STANDING PILOT MODELS* 3508731; 3508732

5008731; 5008732 6508731; 6508732

NOTE:

For models equipped with WILLIAMS gas valve P322041 or P322042 refer to this sheet and sheet 26 for "SAFETY

& LIGHTING INSTRUCTION" and "TURN GAS OFF TO APPLIANCE."

For models equipped with WILLIAMS gas valve P321704 or P321705 refer to this sheet and sheet 27 for "SAFETY

& LIGHTING INSTRUCTIONS" and "TURN GAS OFF TO APPLIANCE."

(All other models refer to sheet 28, 29 & 30.)

On new installations, the gas lines will be filled with air and it may take several minutes to establish the pilot flame.

Keep all access doors and panels in place except for in-

spection and maintenance.

WARNING

THE SURFACE OF THE FURNACE IS HOT DUR-

ING OPERATION. KEEP CHILDREN, CLOTHING, FURNITURE, AND FLAMMABLE MATERIAL AWAY

FROM IT. DO NOT STORE OR USE GASOLINE OR OTHER

FLAMMABLE LIQUIDS OR VAPORS NEAR THE FURNACE.

WARNING

DANGER OF IGNITION FLASH

AND EYE INJURY OR BLINDNESS

PROTECT YOUR EYES. NEVER ATTEMPT TO LIGHT PILOT WITH GAS CONTROL VALVE KNOB IN "ON" POSITION. FLASHBACK COULD OCCUR.

NOTE: Models 3508731; 3508732 are equipped with a single speed fan.

TWO-SPEED FAN OPERATION MODELS: 5008731; 5998732; 6508731; 6508732

For models equipped with WILLIAMS gas valve P322041

or P322042.

Blower will first operate at low speed then shift to high

speed as the furnace heats up.

For models equipped with WILLIAMS gas valve P321704 or P321705.

Models areequipped with a two-rate control valve. The rate knob on the gas valve is marked "LO" and "HI." Turn the

rate knob to the "LO" position and the room thermostat

will operate the main burner at about 70% of maximum capacity, blower will operate at low speed. Turn the rate

knob to the "HI" position only when a fast heat-up is desired during extremely cold weather. High operation

develops maximum capacity of the furnace, blower will first operate at low speed then shift to high speed as the fur- nace heats up.

SAFETY LIMIT CONTROL These furnaces are protected against unsafe operation by

five automatic safety controls: (1)A safety pilot acts to shut

OFF the gas valve in case of pilot failure; (2) A redundant gas valve; (3) A limit switch shuts down the main burner to prevent overheating the furnace cabinet; (4) A vent safe- ty shutoff device shuts down the main burner to protect against improper venting of combustion products. These

limit switchs will reset when furnace cools; and (5) A ther- mal overload protects the motor against burnout caused

by current surges or if anything should block the flow of air through the furnace. This switch will reset itself when

the motor cools down and it cannot be adjusted.

IMPORTANT

KEEP BURNER AND CONTROL COMPARTMENT

CLEAN.

WARNING

DANGER OF PROPERTY DAMAGE

BODILY INJURY OR DEATH.

IF THE FURNACE OVERHEATS OR FAILS TO SHUT OFF, CLOSE MANUAL GAS VALVE FOR THE

FURNACE BEFORE TURNING OFF ELECTRIC POWER.

--25--

FOR YOUR SAFETY, READ BEFORE LIGHTING

I WARNING: If you do not follow these instructions exactly, a fire or explosion

This appliance has a pilot which must be lighted by hand. When lighting the pilot, follow these instructions

exactly.

BEFORE LIGHTING smell around the appliance area for gas. Be sure to smell next to the floor because some

gas is heavier than air and will settle on the floor. WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance or strike a match.

• Do not touch any electric switch; do not use any

phone in your building.

• Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's instructions.

NOTES: FOR ADDITIONAL INFORMATION REFER TO THE INSTALLATION AND OPERATION INSTRUCTION MANUAL SUPPLIED WITH THIS APPLIANCE OR CONTACT THE MANUFACTURER IDENTIFYING THE PRODUCT BY ITS MODEL NUMBER LOCATED ON

THE RATING PLATE, FOUND NEAR THE GAS VALVE.

may result causing property damage, personal injury or loss of life,

• If you cannot reach your gas supplier, call the fire department.

Use only your hand to push in or turn the gas control knob. Never use tools. If the knob will not push in or turn by hand, don't try to repair it, call a qualified serv- ice technician. Force or attempted repair may result in a fire or explosion.

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

under water.

LIGHTING INSTRUCTIONS

1. STOP! Read the safety information above.

2. Set the thermostat to lowest setting.

3. Turn off all electric power to the appliance.

4. Remove control access panel.

5. Turn gas control knob clockwise( _l_to "OFF".

POSITION --_ RESET

6. Wait five (5) minutes to clear out any gas, then smell for gas, including near the floor. If you then smell gas, stop!

Follow "B" in the safety information above. If you don't smell gas, go to next step.

7. Loosen wingnut and open pilot observation door (if equipped).

8. Find pilot--follow metal tube from gas control. The pilot is mounted on side of burner.

9. Turn knob on gas control counterclockwise

J_to "PILOT."

10. Push in red reset button THERMO- JJ

Immediately light the

all the way and hold in, COUPIF _ _.._ pilot. Continue to hold

the red reset button in for about PILOT (1) minute after the pilot is lit. Release BURNER button and it will pop back up. Pilot should

remain lit. If it goes out, repeat steps 5 through 10.

• If button does not pop up when released, stop and

immediately call your service technician or gas supplier.

• If the pilot will not stay lit after several tries, turn the gas control knob to "OFF" and call your service

technician or gas supplier.

11. Close pilot observation door, tighten wingnut (if equipped).

12. Turn gas control knob counterclockwise _"_to "ON".

Knob can be turned to "ON" only if red reset button is up.

13. Replace control access panel.

14. Turn on all electric power to the appliance.

15. Set thermostat to desired setting.

TO TURN OFF GAS TO APPLIANCE

1. Set the thermostat to lowest setting.

2. Turn off all electric power to the appliance if service is to be performed (if applicable).

3. Remove control access panel.

4. Push in gas control knob slightly and turn clockwise _ to "OFF'. Do not Force.

5. Replace control access panel.

WARNING: DUE TO HIGH SURFACE TEMPERATURES -- KEEP CHILDREN, CLOTHING,

FURNITURE OR ANY COMBUSTIBLE MATERIAL AWAY FROM FURNACE.

IMPORTANT: KEEP BURNER AND CONTROL COMPARTMENT CLEAN.

--26--

FOR YOUR SAFETY, READ BEFORE LIGHTING

I WARNING: If you do not follow these instructions exactly, a fire or explosion

This appliance has a pilot which must be lighted by hand. When lighting the pilot, follow these instructions exactly.

BEFORE LIGHTING smell around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.

WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance or strike a match.

• Do not touch any electric switch; do not use any phone in your building.

• Immediately call your gas supplier from a neighbor's

phone. Follow the gas supplier'a instructions,

may result causing property damage, personal injury or loss of life.

• If you cannot reach your gas supplier, call the fire department.

Use only your hand to push in or move the selector arm, Never use tools. If the arm will not push in or move by hand, don't try to repair it, call a qualified

service technician. Force or attempted repair may result

in a fire or explosion,

Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the

control system and any gas control which has been

under water.

LIGHTING INSTRUCTIONS

1. STOPT Read the safety information above.

2. Set the thermostat to lowest setting.

3. Turn off all electric power to the appliance.

4. Remove control access panel.

5. From "ON" position, depress and move selector arm on gas control to "OFF" position. Do not force.

GAS CONTROL

SELECTOR

ARM SHOWN IN *OFF"

POSI'nON

6. Wait five minutes to clear out any gas, then smell for gas, including near the floor. If you then smell gas, stop! Follow

"B" in the safety information above. If you don't smell gas, go to next step.

7. Loosen wingnut and open pilot observation door (if equipped).

Find pilot--follow metal tube from gas control. The pilot is mounted on side of burner.

Hold lighted match at pilot burner.

10.

Move selector arm to "SET" position and light

pilot. Hold in "SET" position

for 1/2 minute after pilot is lit.

NOTE: Sufficient time must be allowed BURNER for pilot flame to heat thermocouple

and hold safety magnet in locked-up position.

Also, time must be allowed for air to be purged

from gas lines during first starting operation.

11. Release selector arm, and if pilot remains lit, move

selector arm to "ON" position.

• If the pilot will not stay lit after several tries, move the selector arm to "OFF" and call your service technician or gas supplier.

12. Close pilot observation door and tighten wingnut (if equipped).

13. Replace control access panel.

14. Turn on all electric power to the appliance.

15. Set thermostat to desired setting.

THERMO-_

COUPLE _

PILOT

TO TURN OFF GAS TO APPLIANCE

1. Set the thermostat to lowest setting.

2. Turn off all electric power to the appliance if service is to be performed (if applicable).

3. Remove control access panel.

4. From "ON" position, depress and move selector arm on gas control to "OFF" position. Do not force.

5. Replace control access panel.

WARNING: DUE TO HIGH SURFACE TEMPERATURES -- KEEP CHILDREN, CLOTHING, I

FURNITURE OR ANY COMBUSTIBLE MATERIAL AWAY FROM FURNACE.

IMPORTANT: KEEP BURNER AND CONTROL COMPARTMENT CLEAN.

--27--

Operating Your Furnace

ELECTRONIC IGNITION MODELS*

3508331; 3508332

5508331, 5508332 NOTE:

For models equipped with WILLIAMS gas valve P322043 or P322044 refer to this sheet and sheet 29 for "SAFETY

& LIGHTING INSTRUCTION" and "TURN GAS OFF TO APPLIANCE."

For models equipped with WILLIAMS gas valve P321897 or P321898 refer to this sheet and sheet 30 for "SAFETY

& LIGHTING INSTRUCTIONS" and "TURN GAS OFF TO

APPLIANCE."

(All other models refer to sheet 25, 26 & 27.)

THE FURNACE WORKS LIKE THIS:

1. Thermostat turns on the control module.

2. Automatic relight system (in module) opens gas valve and electronically ignites pilot. After pilot flame has been established and proven by the control module, main gas valve circuit opens and pilot lights main

burners.

3. Heat builds up in the furnace and starts the fan. The

heated air comes out the front bottom Iouvered panel

at floor level.

4. When the thermostat setting is reached, it shuts off the main burner.

5. The fan runs until the heat is removed from furnace, then it turns off.

WARNING

DANGER OF IGNITION FLASH

AND EYE INJURY OR BLINDNESS

PROTECT YOUR EYES. NEVER ATTEMPT TO LIGHT PILOT WITH GAS CONTROL VALVE KNOB IN "ON" POSITION. FLASHBACK COULD OCCUR.

NOTE: Models 3508331; 3508332 are equipped with a

single speed fan.

TWO-SPEED FAN OPERATION

MODELS: 5508331; 5508332 Formodels equipped with WILLIAMS gas valve P322043

or P322044.

Blower will first operate at low speed then shift to high

speed as the furnace heats up.

For models equipped with WILLIAMS gas valve P321897

or P321898.

Models are equipped with a two-rate control valve. The rate knob on the gas valve is marked "LO" and "HI." Turn the

rate knob to the "LO" position and the room thermostat will operate the main burner at about 70% of maximum capacity, blower will operate at low speed. Turn the rate

knob to the "HI" position only when a fast heat-up is desired during extremely cold weather. High operation

develops maximum capacity of the furnace, blower will first operate at low speed then shift to high speed as the fur-

nace heats up.

IMPORTANT

KEEP BURNER AND CONTROL COMPARTMENT CLEAN.

SAFETY LIMIT CONTROL

These furnaces are protected against unsafe operation by three automatic safety controls: (1)The electronic ignition

system; (2) A limit switch shuts down the main burner to

prevent overheating the furnace cabinet; this limit switch will reset when furnace cools; (3) A thermal overload pro- tects the motor against burnout caused by current surges or if anything should block the flow of air through the fur-

nace, the switch will turn the main burner off. When motor cools down, this switch will reset itself. This switch can-

not be adjusted.

WARNING

THE SURFACE OF THE FURNACE IS HOT DUR- ING OPERATION. KEEP CHILDREN, CLOTHING,

FURNITURE, AND FLAMMABLE MATERIAL AWAY FROM IT.

On new installations the gas lines will be filled with air and it may take several minutes to establish the pilot flame.

Keep all access doors and panels in place except for in- spection and maintenance.

WARNING

DANGER OF PROPERTY DAMAGE,

BODILY INJURY OR DEATH

IF THE FURNACE OVERHEATS OR FAILS TO SHUT OFF, CLOSE MANUAL GAS VALVE FOR THE

FURNACE BEFORE TURNING OFF ELECTRIC POWER.

--28--

FOR YOUR SAFETY, READ BEFORE LIGHTING

WARNING: If you do not follow these instructions exactly, a fire or explosion I

may result causing property damage, personal injury or loss of life.

A. This appliance is equipped with an ignition device which

automatically lights the pilot. Do not try to light the pilot by hand.

B. BEFORE LIGHTING smell around the appliance area

for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.

WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance or strike a match.

• Do not touch any electric switch; do not use any

phone in your building.

• Immediately call your gas supplier from a neighbor's

phone. Follow the gas supplier's instructions.

THE RATING PLATE, FOUND NEAR THE GAS VALVE.

• If you cannot reach your gas supplier, call the fire department.

Use only your hand to push in or turn the gas control

knob. Never use tools. If the knob will not push in or turn by hand, don't try to repair it, call a qualified serv- ice technician. Force or attempted repair may result in a fire or explosion.

Do not use this appliance if any part has been under water. Immediately call a qualified service technician to

inspect the appliance and to replace any part of the

control system and any gas control which has been

under water.

LIGHTING INSTRUCTIONS

t. STOP! Read the safety information above,

2. Set the thermostat to lowest setting.

3. Turn oft all electric power to the appliance.

4. This appliance is equipped with an ignition device which automatically lights the pilot. Do not try to light the pilot

by hand.

5. Remove control access panel.

6, Turn gas control knob clockwise( _!_to "OFF",

GAS CONTROL _

KNOBSHOWN !> F _ .

7. Wait five (5) minutes to clear out any gas, then smell for gas, including near the floor. It you then smell gas, stop!

Follow "B" in the safety information above. If you don't smell gas, go to next step,

Turn the gas control knob counterclockwise _' I to "ON".

9. Replace control access panel.

10. Turn on all electric power to the appliance.

11. Turn thermostat to on (HEAT) position. Set thermostat

higher than room temperature. Pilot will automatically light and main burner(s) will light in approximately 45

seconds. NOTE: On initial start-up or after prolonged shot down,

several ignition cycles may be required to purge gas lines. To accomplish the recycle - repeat steps 6

through 11 until pilot is established.

12.

Set thermostat to desired setting.

13.

After the room thermostat turns the system off, a delay of approximately one minute is required before the system can be turned on again.

14.

If the appliance will not operate, follow the instructions "To Turn Off Gas To Appliance" and call your service technician or gas supplier.

TO TURN OFF GAS TO APPLIANCE

1. Set the thermostat to lowest setting.

2. Turn off all electric power to the appliance if service is to be performed.

3. Remove control access panel.

4. Push in gas control knob slightly and turn clockwise [ _, to "OFF". Do not Force.

5. Replace control access panel.

WARNING: DUE TO HIGH SURFACE TEMPERATURES -- KEEP CHILDREN, CLOTHING,

FURNITURE OR ANY COMBUSTIBLE MATERIAL AWAY FROM FURNACE.

IMPORTANT: KEEP BURNER AND CONTROL COMPARTMENT CLEAN.

--29--

FOR YOUR SAFETY, READ BEFORE LIGHTING

I WARNING: If you do not follow these instructions exactly, a fire or explosion

A. This appliance is equipped with an ignition device which

automatically lights the pilot. Do not try to light the pilot by hand.

B. BEFORE LIGHTING smell around the appliance area

for gas. Be sure to smell next to the floor because some gas is heavier than sir and will settle on the floor.

WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance or strike e match.

• Do not touch any electric switch; do not use any

phone in your building.

• Immediately call your gas supplier from a neighbor's phone, Follow the gas supplier's instructions.

THE RATING PLATE, FOUND NEAR THE GAS VALVE,

may result causing property damage, personal injury or loss of life.

• If you cannot reach your gas supplier, call the fire

department.

Use only your hand to push in or move the selector arm. Never use tools. If the arm will not push in or move by hand, don't try to repair it, call a qualified service technician. Force or attempted repair may result in a fire or explosion.

under water.

LIGHTING INSTRUCTIONS

1, STOP! Read the safety information above,

2. Set the thermostat to lowest setting. 3, Turn off all electric power to the appliance.

4. This appliance is equipped with an ignition device which automatically lights the pilot. Do not try to light the pilot by hand.

5. Remove control access panel.

6. From "ON" position, depress and move selector arm on gas control to "OFF" position, Do not force.

GAS CON'n_OL

SELECTOR ARM SHOWN

IN "OFF"

POSI'NON

8. Move selector arm to "ON" position. 9, Replace control access panel.

10, Turn on all electric power to the appliance.

11. Turn thermostat to "ON" (HEAT) position. Set thermostat

higher than room temperature. Pilot will automatically light and main burner(s) will light in approximately 45

seconds,

NOTE: On initial start-up or after prolonged shut down, several ignition cycles may be required to purge gas

lines. To accomplish the recycle - repeat steps 6

through 11 until pilot is established.

12.

Set thermostat to desired setting.

13.

After the room thermostat turns the system off, a delay of approximately one minute is required before the

system can be turned on again.

14.

If the appliance will not operate, follow the instructions "To Turn Off Gas To Appliance" and call your service technician or gas supplier.

Wait five (5) minutes to clear out any gas, then smell for gas, including near the floor. If you then smell gas, stop! Follow "B" in the safety information above. If you don't smell gas, go to next step.

TO TURN OFF GAS TO APPLIANCE

1. Set the thermostat to lowest setting.

2. Turn off all electric power to the appliance if service is to be performed.

3. Remove control access panel.

4. From "ON" position, depress and move selector arm on gas control to "OFF" position. Do not Force.

5. Replace control access panel.

WARNING: DUE TO HIGH SURFACE TEMPERATURES -- KEEP CHILDREN, CLOTHING,

FURNITURE OR ANY COMBUSTIBLE MATERIAL AWAY FROM FURNACE.

IMPORTANT: KEEP BURNER AND CONTROL COMPARTMENT CLEAN.

--30--

How To Care For Your Furnace

WARNING

DANGER OF BODILY INJURY OR DEATH

TURN OFF ELECTRIC POWER SUPPLY AT

DISCONNECT SWITCH, FUSE BOX OR SERVICE PANEL BEFORE REMOVING ANY DOORS OR

ACCESS OR SERVICE PANELS FROM UNIT.

CABINET FINISH Clean cabinet with damp rag. Never use abrasive cleaners.

Cabinets are finished in heat resistant baked enamel - DO NOT refinish with wall paint.

COMBUSTION AND VENTILATION AIR

The combustion and ventilation air supply must not be blocked.

Do not put anything in or on the furnace cabinet.

For better circulation and more effective heating, do not place obstructive furniture closer than four feet to the front

of the cabinet or two feet to the side of the cabinet.

PILOT BURNER

Light pilot using instructions in OPERATING YOUR FURNACE (on pages 25 through 30, depending on your

model). Leave thermostat at lowest setting. Pilot flame should surround 3/8 to 1/2 inch of the thermo-

couple tip. Refer to Fig. 42, Page 32. If flame needs adjusting, do it as follows:

ADJUST PILOT BURNER (see Fig. 42, page 32)

1. Remove screw cover over pilot adjusting screw.

2. Insert small screwdriver, Adjust flame as needed. Turn

screw counterclockwise ( _ ) to increase flame,

clockwise ( _ ) to decrease.

3. Turnthermostat to highest setting. Main burnersshould

light quickly and smoothly. Turn thermostat to lowest

setting. Main burners should go out. Pilot should re- main lit except for electronic ignition models.

4. Replace screw cover over pilot adjusting screw. BURNER FLAME

Start the furnace and let it operate about 10 minutes then look at the burner flame. Flames should be soft and blue,

see Fig. 40. If flames appear abnormal, contact the gas company or a qualified service technician immediately.

FURNACE AREA

Keep the area near the furnace clear and free from com- bustible materials, gasoline, and other flammable liquids and vapors.

ANNUAL UPKEEP NEEDED

It is recommended that a qualified service technician per- form these checks at the beginning of each heating

season.

CLEANING AND OILING Shut off electricity, then remove cabinet door and front

panel. Clean any lint or dirt from fan blades, fan motor,

and exposed air passages. Use a brush.

Put 5 drops of SAE 20 oil in each of the two cups or oil

tubes on the fan motor, See Fig. 39, below.

MOTOR OIL HOLES

OIL 1UBES OR OIL CUPS ON EACH _ND OF

MOTOR

FAN

MOTOR

VENTING SYSTEM

Make sure that no parts of the vent air system are block-

ed or rusted. Clean or replace before using furnace.

MAIN BURNER FLAME PATTERN

CORRECT

le4SUFflCiENE AIR LONG OPEN ENI) (_ONES YELtOW IN COLOR

INNER CONES LIGHT BLUE POINTED TOP OUTER MANTLE LIGHT BLUE

PROPER FLAME I/2 Io 3/4 HIGH

--31--

How To Care For Your Furnace (Con't)

BURNER CLEANING

Check burner. If cleaning is required, contact a qualified service technician to clean and service burner.

WARNING

DANGER OF BODILY INJURY OR DEATH

MAKE SURE ELECTRIC POWER AND GAS SUPPLY ARE OFF BEFORE REMOVING PANELS

OR DOORS, ETC.

CLEANING BURNER COMPARTMENT

Because cold air is attracted to the flame during furnace operation, a build up of lint from bedding and dust, etc.,

in the burner area will occur each heating season. It is

necessary to clean this area regularly. Use a vacuum

cleaner with a narrow attachment to reach small areas.

Be careful in and around the pilot. A change in its adjust-

ment could be made if struck during cleaning.

TO REMOVE BURNER(S)

Refer to "Mounting Your Furnace" section (pages 15, 16 and 17).

Check the spark gap. It must be carefully adjusted to specifications as illustrated (Fig. 42) for ignition device to

function properly.

PILOT FLAME AND SPARK GAP

PILOT • 3/8 TO 112 HOOD

SENSOR

SLIGHT ORANGE TIP

ELECTRODE TYPICAL

TYPICAL BLUE CONE BLUE CONE

--LP GAS NATURAL

BURNER GAS

CASTING

N_TURAL GAS

NATURAL

Disconnect gas line inside cabinet.

MODEL

NUMBER

3508732

3508731

3508332 35O8331 5008732 50O8731

5508332 5508331 6508732 6508731

**For elevations above 2000 feet reduce ratings 4% for each 1000 feet above sea level

Furnace Technical Information

TYPE

GAS

NAT

L.F:

NAT

L.I_

NAT

L.P

NAT

L.R

NAT

L.P

INPUT** RATING

HI-FIRE LO-FIRE

35,000 24,500 35,000 24,500 35,000 24,500 35,000 24,500

50,000 35,000 50,000 35,000 55,000 38,500 55,000 38,500 65,000 45,500 65,000 45,500

MAIN BURNER ORIFICE

DRILL DEC.

#38 .1015

#52 .0635

#38 .1015

#52 .0635

#43 .089O #54 .0550 #42 .0935 #54 .O550 #38 .1015

#52 .0635

QTY.

1 1 1

1 2 2 2 2 2 2

The efficiency rating of these appliances is a product thermal efficiency rating system determined under continuous operating conditions and was determined independently of any installed system.

m32--

Troubleshooting Chart

FOR MODELS: 3508731; 3508732; 5008731; 5008732; 6508731; 6508732

SYMPTOM

1. Pilot will not stay lit after

following lighting instructions.

2. Main burner will not come ON -- pilot burning and

thermostat set for heat.

POSSIBLE CAUSE(S)

a. Thermocouple producing insuffi-

cient millivoltage.

b. Loose or dirty thermocouple

connection at gas valve.

c. Thermocouple defective.

d. Thermomagnet pilot safety

defective.

e. Vent safety shutoff device.

a. Gas valve not turned ON.

b. Electric power to furnaceturned

OFE

c. Low voltage transformeror limit

switch defective.

CORRECTIVE ACTION

a. Check pilotflame -- mustimpinge onthermocouple.Pilotflame

maybeloworblowing(high)causing safetytodropout. Pilo_orifice or aeratinghole maybe plugged (checkfor spiders,websor other organic material). Be sure the thermocouple is fully insertedin

bracket.

b. Clean and/ortightenthermocouplefitting atconnectiontovalve.

C. Check thermocouplewithmillivoltmeter-- shouldgenerateap-

proximately30 millivolts when not connected to load. When con-

nectedtoload,should generateapproximately14millivolts.If below

7 miilivolts, replace.

d. Replacegas valve after above is checked out.

e. Checkwiringconnectionsfrom valve to vent safetyshutoffdevice.

Be sure all connections are tight. Check for blocked vent.

Turngasvalve knob to "ON" position -- if no main gas flow, pro-

ceed to Step. "b".

Checkforline voltage atfurnace-- if okayandno main gasflow, proceed to Step "c".

Checkfor24 volts at the lowvoltage terminals ofthetransformer. If novoltage,turn OFFelectric powerto furnace.Removeone wire

from limit switch and check for continuity across both terminals. No continuity-- replacelimit switch.With a good limitswitchback

in the circuitand the electric powerturned ON -- if no voltage, replace transformer. NOTE: Before replacing the transformer or

limit switch, check wiring for loose connections or broken wires and repair as needed. If voltage is present at transformer, pro-

ceed to Step "d".

d. Wall thermostat defective.

With thermostat set for heat (contacts closed) checkfor voltage at terminals on gas valve. If no voltage is present replacedefec- tive thermostat. NOTE: Before replacing thermostat, be sureto checkwiring from furnace to thermostat for loose connectionsor broken wiresand replace as needed.

Ifvoltageis presentat terminals on gas valveand still nogas flow to main burners, proceed to Step "e".

e. Burner orifice plugged.

Clean or replace orifice -- if okay and still nogas flow to main burners, proceed to Step "f".

"3. Burner comes "ON" but

goes OFFbefore blower turns ON.

f. Gas valve defective.

a. Defective wiring.

Replace defective gas valve.

TurnOFF electric power to furnace. Removetop front panel, fan

shroudand blower wheel. Refer to Wiring Diagram and check all wiring inside junction box. Removecenter front paneland check

all wiring inside switch box containing fan, limit and selectorswit- ches.Correctif necessary. If correct, proceed to Step "b". NOTE:

Selectorswitch used onlyon Models5008731;5008732;6508731:

6508732.

b. Defective limit switch.

If burner goes OFF in less than five minutes from room temperaturestart, check limit control switch. Ifdefective,replace.

NOTE:Blower shouldturn "ON" within three minutesafter burner is "ON" froma room temperaturestart.Ifnot,proceedtoStep"c".

*Also applicabLeto Models equipped with an electric intermittent pilot system. (continued next page)

--33--

Troubleshooting Chart

FOR MODELS: 3508731; 3508732; 5008731; 5008732; 6508731; 6508732

SYMPTOM

3. Burner comes "ON" but

goesOFF before blower

turns ON. (cont.)

*4. Burnercomes "ON", blowe

comes "ON", but cycles

"ON" and "OFF" while burner remains "ON".

*5. Burner comes "ON",

blower comes "ON", but burner cycles "OFF" and

"ON" with blower "ON".

POSSIBLE CAUSE(S)

c, Defectivemotor(2-speed).

d. Defective motor (1-speed).

e. Defectivefan switch.

a. Furnace not operating at full

rate.

a. Furnace operating over-rate.

b. Line voltage too low.

c. Recirculation.

d. Loss of circulating air due to

leakage.

CORRECTIVE ACTION

Jumperacrossfan switch,turnelectric powerON, motor should rotate.A2-speedmotorisused-- jumperfrom "brown" terminal

onfanswitchto #2(red)terminalonselectorswitch, motorshould rotateon "LOW" speed. Jumperfrom same"brown" terminalon fan switchto#3 (black) terminalonselectorswitch, motorshould rotateon "HIGH" speed.Replacemotor if defective.

Jumper across fan switch, turn electric power ON, motorshould rotate. Replace motor if defective.

If, after checkingabove possibilities, problem still exists, replace fan switch.

Check for low gas pressure atgas valve -- should be 4" W.C.for

NaturalGas, 11" W.C.for L.R Gas. Check burner orifice.

Check for high gas pressure at gas valve -- correctif necessary.

See correct pressure above.

Check line voltage to motor, if below 115volts motor will run too s_ow.

Heated air discharging against an object causing recirculation,

such as a hall installation or a large piece of furniture within 4'

of discharge.

Checkheaderplateinstallation and proper use of gaskets.Repair

as necessary.

"6. Furnace operates but turns

"OFF" before room tem-

perature is attained.

*7. Furnace operatesbut will not

shut "OFF" when room

temperature is attained.

*8. Abnormal operation.

a. Thermostat location.

b. Defective thermostat.

a. Thermostat wiring defective.

b. Thermostat location,

c Improper thermostat anticipator

setting.

a. Blower noise.

b. Expansion noise ticking,

c. Burnerresonance.

d. Seleclor switch defective.

(2-speed).

Checklocationof thermostat. It should not be in the path of warm air discharge from furnace, near a lamp,or above a TV set or

stereo.

Check thermostatcalibration or replace.

Check thermostat wiringfrom furnace to thermostat -- may be shorted together by a nail or staple.

Check thermostat location -- if an outside wall or a hole in wall behind thermostatcausingcold air to contactthermostat, relocate.

Set anticipator per THERMOSTATANTICIPATOR,page 20.

Check motor mounts -- they may be loose. Blower wheelcould be out of balance Setscrew may be looseon motor shaft. Blower may be rubbing on fan shroud. Motor may need oiling. Correct

as needed.

Check installation -- casing may be twisted or not level at time of installation causing combustion chamber to bind on its locating

pros

Usually associated with L.R Gas operation. Adjust primary air

screw =nthroatof each cast iron burner after about 10 minutes of operation.Adjust toobtain a soft blue flame without streaming yellow tips,

During normal furnace operation motorwill be on "LOW" speed when operatingon minimum inputcapacityand on"HIGH" speed whenoperating on maximum input capacity. Ifthere isno change

in motor speed, replace selector switch.

"Alsoapplicableto Models with an electric intermittent pilot system.

--34--

Troubleshooting Chart

FOR MODELS: 3508331; 3508332; 5508331; 5508332

SYMPTOM

1. Nospark-- nopilotgas.

2. Spark -- but no pilot gas,

POSSIBLE CAUSE(S)

a. No main powe_

b. Faulty transformer.

c. Faulty thermostat.

d. Faulty limit switch. e. Faulty ignitioncontrol.

f. Faulty wiring.

g. Vent safety shutoffdevice.

a. Faulty ignition. b. No gas supplied to pilot valve.

c. Manual valves in OFF position.

CORRECTIVE ACTION

a.-e. Perform normalsystemchecks of mainpower,transformer,ther-

mostat, limit switch, and replace faulty component. With power ON, turnthermostatto the lowestsetting, wait 10

seconds and return to HIGH setting. With power ON and ther- mostatset at its highest position, set voltmeterto24Vscale and

attach probesto terminals "TR" and "TH" on the ignition con- trol unit.

If you read 24V and there still is no sparkor pilot gas, the igni- tion controlis defective and must be replaced.

f. Testwiring. Repair or replace.

g. Check wiring connectionsfromvalvetoventsafetyshutoffdevice,

be sure all connectionsare tight. Check for blocked vent.

a. See le.

b. Check for availabilityofgas atgascontrol. Makesurethe manual

valve (gas cock) on the gas control are in the full ON position.

No pilot gas could be caused by a plugged pilot tubing. Also

check the pilot adjustment at the gas control.

c. See 2b.

3. Pil_gas--but no spark.

d. Faulty pilot valve. e. Faulty wiring. f. Restricted pilot line or clogged

pilot orifice.

a. Faulty ignitioncontrol.

b. Broken or shorted electrode

assembly.

d. See2b.

e. See lf. f. See2b.

With power ON, turn thermostat to the lowestsetting, wait 10 secondsand return1ohighsetting WithpowerONandthermostat set atits highest position, set voltmeter to 24V scale and attach probesto terminals"24V" (*TH) and "GRD" ('TR) on the igni-

tion control unit. If you read 24V and there is still no spark or pilotgas, the ignition control is detective and must be replaced.

With thermostat turned to its highest setting, set test meter to 24Vscale.Touchprobesto "PV/MV" and"PV" terminalson Gas

Valve. If you do not get a 24V reading, check wiring. If wiring tests okay, check ignition control.

Connectprobesto "PV/MV" AND"PV" terminalsonignitioncon- trol.If youdo not read24V,the ignition control mustbe replaced.

Remove wire at "PV/MV" terminal at the ignition control, being careful not to touch any metal parts; disconnect the electrode

wire at the ignition control. Connect one end of a jumper wire to terminal "GND" (DO NOT REMOVE EXISTING WIRE.) At- tach the other end of the jumper wire to the metal blade of a smal!

screwdriver. Position end of metal blade approx. 1/8" from ter- minal. Reconnect "PV/MV" terminal Sparking should occur be-

tween screwdriver blade and terminal

If no sparking occurs, the ignition control must be replaced.

Checkthe pilot and electrode assembly for proper electrodegap (3/32" to 1/8") or any possible shorting of electrode 1osurroun-

ding metal surfaces. Make surethe spark ignitor and electrode connectionsto the ignition control are tight. The ignition control

and pilot burner musl both be chassis ground. If there is still no

spark, the pilot and electrode assembly must be replaced.

--35--

(continuednextpage)

Troubleshooting Chart

FOR MODELS: 3508331; 3508332; 5508331; 5508332

SYMPTOM

4. Pilotlit,butmainburner

won'tcome ON.

POSSIBLE CAUSE(S)

a. Faultyignitioncontrol.

b. Faultywiring. c. Low pilot flame.

d. Improper alignment of sensor in

pilot flame.

e. Faulty flame sensor.

CORRECTIVE ACTION

See 3a.

See if.

NOTE:Waitat least90 secondsafter pilotlightsbeforedoing the

check out procedures for problem number 4. With thermostatON,be surethat the pilot and sensor are prop-

erly aligned so that the pilot flame impinges the top 3/4 inch of the sensoi_Be surethat the sensor is pushed allthe way into pilot

bracket.Adjustpilotflamewithpilotadjustment, if necessary.Also check inlet supply pressure and pilot orifice, if pilot hOOdor sen- sor is bent, the defective unit should be replaced.

If main burner still won't comeON, make sure the main burner orifices are clear:.If orifices are clear, set voltmeter to 24V scale

andtouch probes to the terminals of the main gas operator:on the gas valve.Attach to terminal "MV", "PV/MV" on Gas Valve.

Ifyou read24Vand theburner won't turn ON, replace entire gas

valve.

WhenmainburnercomesON,ensurethatthepilotflameisstrong,

sensor is properly aligned,and pilot flame impingesthe top 3/4

inchofthe sensor:(Seeproceduresforcheck for proper pilot flame

and alignment in problem 4c.) Check the pilot and electrode

assembly for proper electrode gap (3/32" to 1/8") or any possi-

bleshortingofelectrodetosurrounding metal surfaces.Makesure

the spark ignitor and electrode connections to the ignition con-

trol aretight. The ignition control and pilot burner must both be

chassis ground. _fthere is still no spark, the pilot and electrode

assembly must be replaced.

BE SURE POWER IS "OFF", BEFORE PERFORMING THIS TEST!! Settest meterto "ohm" scale or use continuity checker. Touch one end of probes to top of flame sensor, the other to

"SENSE" terminal onthe ignitioncontrol. Ohmmetershould read "0", continuity should be evident. If you don't obtain a reading,

removewiring from sensor and test both individually, If continui- ty is not evident, replace wiring and/or sensor.

There should be NOcontinuity between sensor and "GND" ter-

minalonthe ignition control,Testingwiringand sensorindividually, determine which is shorted on ground. Replace or repair. Turn

ON power.

PiJotcycles OFF and ON by itself,

Main burner shuts down

before thermostat is

satisfied.

a. Faulty pilot valve. b. Faulty wiring.

a. Lowpilotflame. b. Improperalignmentof sensor in

pilotflame.

c. Pilot flame being drawn away

from sensor

d. Improper heat anticipator

setting.

e. Faultylimit.

--36--

a. See 2b. b. See lf.

a. See 4c. b. See 4d.

Whenmainburner comesON,ensurethat the pilot flame is strong,

sensor is properly aligned and pilot flame impingesthe top 3/4

inch of the sensor. (Seeprocedures for checking forproper pilot

flame and alignment in problem 4d.) If the pilot flame is drawn

awayfrom the sensor when the main burner comes "ON", the

cause could be the manual valve is notin the full ON position

or the inlet gas pressure with the main burner ON.

NOTE:Low inlet gas pressure to the gas controlcan be caused

byseveralproblemsandis notwithin the scope of the procedures

outlined in this service guide Consult your local utility or gas

supplier:

See 6c.

Check the setting of the heat anticipator in the wall thermostat.

Set it to setting specified on the gas control.

The system may be cycling on a faulty limit. Using a test meter

set to the 110volt scale, check for a voltage reading across the

limitwhen the main burner shuts OFF.If you get a 24volt or 110

volt reading on shutdown, replace defeclive limit switch.

Wiring Diagrams

FOR MODEL_

3508331 ond 3508332

FOR 35M B.T.U.

FAN TYPE VENTED WALL FURNACE

WITH INTERMITTENT IGNITION CONTROL SYSTEM

L1 1.2

HOT 115V 80HZ NEUT

FAN SWITCH

115V

SENSOR•

THERMOSTAT IGN

TO + II

.v/Pv O _--r-_ O

Z4V/GNDO,

PV O- 0

24V O"

MV O-

s_s O__ 0

IGNO-

IN1T-,RMI3'TENTIGN. CONTROL MODULE

_FACTORy _ L_ VOLTAGE. 1 ffanyoftheoriginaJwireassupplied

-- FA_ WM_£D LOW VOLTAGE. with the appliance has to be replac- 1//4 QUICK CONNECT "I_RMINAL ed, useonly 18Ga.,4/64insulation,

FACTORY WIRING. 105° C. AWM copper wire or its

V4RE CONNECTOR FOR FAC'F(_Y equivalent 115V-60Hz.-lessthan _R_O LINE VOf.TA_- 3amps.

(_ SCREW "J_E_NAL LOW _31.TAGF-

"n-IERMOSTAT r_] cONV-oUR-ET

PV (P) 7

PVA=V(c) _(_0

GAS

VALVE

NOTES:

2. MOTOR IS THERMALLY OVER- LOAD

115V. 60Hz - LESS THAN 3 AMPS

VENT

SAFETY

SHUT OFF

DE'V1CE

PROTECTED.

FOR MODELS:

5508331 and 5508332

FOR 55M B.T.U.

FAN TYPE VENTED WALL FURNACE

WITH INTERMITTENT IGNITION CONTROL SYSTEM

L1 • 115V BOHZ _ 19

FAN _TCH _TGPI 'v' 3 _ w _L COM

UMIT SWITCH r'mor_ • SENSOR

i I_10 O i

TR_S. FLAME

z4v/mD 0 , ,

SENS 0 -- _; PV/_IV (C)

PV 0 MV (M)

24V 0 _ GAS

Mv0 L VALVE

IGN0 ---

IN'W.RMITW.NT IGN.

CONTROL MODULE

LE_ NOTES: m FACTORY _ LINE VOLTA_-. 1. Ifanyoftheoriginalwireassupplisd

-- FACTORY _ LOW VOLTAGE. withtheappliancehastobereplac-

I/4. QUICK CONNECT "I_UNAL ed, useonly 18 Ga., 4/64 insulation, FOR FACTORY V_RtNG. 105° C. AWM copper wire or its

_RE CONNECTOR FOR FACTORY equivalent115V-60Hz.-lessthen '_4RINQ LINE VOLTAGE* 3 amps

SCREW/ _ LOW _OLTAGE, LOAD PROTECTED.

"THERMOSTAT _ CONV.OU'I1..ET

2. MOTOR IS THERMALLY OVER- 115V 60Hz - LESS THAN 3 AMPS.

VENT

SAFETY

SHUT OFF

DE_CE

SPNtK GAP

7/'G:2- oTR

-- ARK

uv (_)

-- 2"-'ff49-

'= "l

_1 VENT SAFETY

NTERMIT_T IGNITION CONTROL MODULE SHUT OFT"DEVICE

_1 / ELECTRODE

__ 7/a,r --FSPA_K S_TCH

-- "_R-- BLACK 't/

--_ I'_ -uv(M) ._=i_

w--Qg- .,

_QN "1, VENT SAFETY

Z]N'R_MIT'Jl_T IGNITIONCON_I_OLMODULESHUT OFF DEVICE

--37--

{:'OR MODELS: 3508731 and 3508732

Wiring Diagrams

FOR MODELS: 5008731 and 5008732

6508731 ond 6508732

FOR 35M B.T.U.

FAN TYPE VENTED WALL FURNACE

WITH CONTINUOUS PILOT CONTROL SYSTEM

u / /_

.oq- ,sv.,z

I _ r _ _ .oTo. I

TO THE3_MOSTAT

"IN_MOe_UPI.E

SHUTOFFDE_ _ _

LE_ NOTES:

I FACTORY _ UN =' VOLTAGE. 1. Ifanyoftheorigina/wireassupplied

-- FACTORY _R_ LOW _3LTAGF-.. wi(h the appliance hasto be replac- 1/'4 QI_C_ C_CT "i_AL ed, useonly 18Ga.,4/64insula5on,

EZ]

F_-_ORy _ 105 ° C, AWM copper wire or its

WIRE CQNNECTOR FOR FACTORy equivalent 115V-60Hz.-lessthan

_P_NG lINE VOLTAGE. 3 amps,

_ERMJNAL LOW VIO_TAG_. LOAD PROTECTED.

2 MOTOR IS THERMALLY OVER-

115V 60Hz - LESS THAN 3 AMPS.

FOR 50M AND 65M B.T.U.

FAN TYPE VENTED WALL FURNACE

WITH CONTINUOUS PILOT CONTROL SYSTEM

.z "I. T

UMIT SWITCH (_TRANS.

TO "IHE_OSTAT l

VENT __

SHUT OFF D

LIEG_qD NOTES:

-_, FAC'R_Y _ L_IE VOLTAGE.1. Itanyof theoriginalwireassupp_ied

-- FACTORY t_RIED LOW VOLTAGE. with the appliance has to be replac-

1/'4 QU]C_ C_NNECT "RE_MINAL ed, useonly 18 Ga., 4/64 insulation,

FACTORY '/_RJN P_ 105= C AWM copper wire or its

_RE CONNECTOR FOR FACTORY equivalent 115V- 60Hz,- less lha_

• IRSNG LINE VOLTAGE. 3 amps SCREW "I]B_.MINAL LOW VOLTAGE. 2 LOAD PROTECTED.

T=,,T

J - BLOCK

THERMOCOUPLE

MOTOR IS THERMALLY OVER-

115V. 60Hz LESS THAN 3 AMPS.

THERMOSTAT

1 2

11t 11t

[_ CONV.OU_

ON HEADER

BROWN BLUE

BLOCK "I'HERMOCOUPLE

VENT SAFELY SHUT oFF DEVICE

THERMOSTAT

1 2

TR TH

GAS VALVE

_._] CONV,OU1LEr

ON HEADER

-(:)

R_.-_

UMIT SWITSH

-- BLOCKTHERMOCOUPLE

8LAOK./YELLOW('_ VENT SAF'E--W et.Aa<./"Y_EU.OW_ SHUT OFF DEVlC£

--38--

Williams Top Vent Gas-Fired Wall Furnace

REPAIR PARTS FOR MODELS

3508331; 3508332; 3508731 and 3508732

CABINET and BODY

ASSEMBLY

17 18 19

USE ONLY MANUFACTURER'S AUTHORIZED PARTS

FOR PARTS LIST SEE PAGES 41 AND 42.

--39--

Williams Top Vent Gas-Fired Wall Furnace

CONTROL ASSEMBLY

FOR MODELS

3508731 and 3508732

FOR PARTS LISTING SEE PAGE 42

USE ONLY MANUFACTURER'S

AUTHORIZED PARTS

--40--

CONTROL ASSEMBLY FOR MODELS-

3508331 and 3508332

FOR PARTS LISTING SEE PAGE 42

Williams Top Vent Gas-Fired Wall Furnace

REPLACEMENT PARTS LIST FOR MODELS 3508331; 3508332; 3508731 and 3508732

REF.

NO.

DESCRIPTION

Outer Casing, Less Front Panel

tnner Liner

Heating Element

Bottom Front Panel

Top Front Panel

Fan Shroud

Vent Cover

Draft Hood

Switch Box

Center Front Panel

Internal Wires (All Except Ign. Control)

Header Plate

Junction Box

Gasket-Element Base

Draft Hood Gasket

Flue Collar Gasket

Fan Blade

Motor

Motor Support (2 Req,)

Vibration Isolators (4 Req.)

Transformer, 116V-24V

Limit Switch

Fan Switch

Switch Box Cover

Limit Switch

Deflector Baffle Handte

Header Gasket (3 Req.)

27A

Lower Element Base Angle

* Vent Enclosure Bide (2 Req.)

_r Vent Enclosure Front

-* Vent Enclosure Side (2 Req.)

* Vent Enclosure Front

* Rear Grille, Two-Way

* Plaster Ground

* Rear inner Boot, 10-3/4 Inches Long

* Damper

* Rear Outer Boot, 10 Inches Long

Jr Rear Grille, Two-Way

J, Plaster Ground

* Rear Inner Boot, 1-5/8 Inches Long

* Damper

_, Rear Outer Boot, 7/8 Inches Long

* Diffusing Grille Kit Two-Way

* Diffusing Grilte Kil - One-Way * Trip Strip Kit (Not Shown) * Oval B/W Vent Kit (Not Shown)

PART NO. FOR

35O8331

12C10

12B15

12C18 12B49 12B50 12B03-1

7B12

12B12 tlB05 12C21

3508331 7B57

12B05

P026500

P107900

P027100

P300500

P322544 7B46 P022800 P024200 P309600 P200200

11C68 P321127

11C63 7A68 7Al17

9812 9812 9812 9812

9824 9824 9824 9824

6801 6801 6801 6801

6802 6802 6802 6802

6703 6703 6703 6703 6704 8704 8704 8704 4701 4701 470! 4701 9901 9901 9901 9901

3508332

12C10 12B15 12C18 12B49 12B50

12B03-1

7B12

12B12 tlB05

12C21 3508332 7B67

12B05 P020500 P107900 P027100 P300500

P322544

7B46 P022800 P024200 P309600

P200200

11C68

P321127

11C63 7A68 7Al17

MODEL:

3508731

12C10

12B15

12C18 12B49 12B50 12B03-1

7B12

12B12

11B05 12C21

3508731

7B57 12B05 P026500

P107900

P027100 P300500

P322544

7S46 P022800 P024200 P309600 P200200

11C68

P321127

11C63

7A68

7A117

3508732

12C10

12B15

12C18

12B49

12B50

12B0_1

7B12 12B12 11B05 12C21 3508732 7B57

12B05

P026500 P107900

P027100 P300500 P322544

7B40

P022800 P024200

P309600 P200200

11C68 P321127 11C63 7A68 7Al17

"_ Not available separately, in kit form only. For part illustration see pages 39 and 40

Note: Screws and bolts are standard hardware items, available locally

(continued on next page)

--41--

Williams Top Vent Gas-Fired Wall Furnace

REPLACEMENT PARTS FOR MODELS 3508531; 3508332; 3508731 AND 5508752

REF.

NO.

38 39

41 41

45 46

48 49

NOTE:

PART NO. FOR MODEL:

DESCRIPTION

Valve, WILLIAMS Nat. -- P322043 Valve, WILLIAMS L.P.G. P322044 --

Manifold 12A01 12A01 Orifce Fitting, Specify Model & Gas P090500 P090500

Locknut P026200 P026200 Pilot, Cast Iron Burner, Robertshaw LP.G. P229200 --

Pilot, Cost Iron Burner, Robertshow Net. -- P229100 Pilot, Formed Steel Burner, Robertshaw Nat. -- P229300

Junction Block Thermocouple

Flame Sensor

Burner, Cast Iron, Nat. or L.P.G. Burner, Formed Steel, Net. Gas Only

Thermostat Ignition Control

Wire Assembly Wire Assembly

Manifold Adopter Ignition Control Shield Wire Assembly (2 Required) Ignition Control WIres (Not Shown)

Screws ond bolts are standard hardware items, available locally.

3508331 3508332 3508731 3508732

-- P321828 P321828

P271100 P271100 -- --

P025600 P025600 P025600 P025600

-- 7C52 -- 7C52 P322017 P322017 P322017 P322017 P321910 P321910 -- --

P321522 P321522 -- --

P321935 P321935 -- -- P321887 P321887 P321888 P321888

7C79 7C79 -- --

-- -- P321935 P321935

31B036 31B036 -- --

-- P322041

P322042

12A01 12A01

P090500 P090500

P026200 P026200

P179800

-- P179700

-- P321837

For ports illustration see page 40.

--42--

Williams Top Vent Gas-Fired Wall Furnace

REPAIR PARTS FOR MODELS

5008731; 5008732; 5508331; 5508332; 6508731 and 6508732

CABINET and BODY

ASSEMBLY

28 26

1 •

USE ONLY MANUFACTURER'S AUTHORIZED PARTS

FOR PARTS LIST SEE PAGES 45 AND 46.

--43--

Williams Top Vent Gas-Fired Wall Furnace

CONTROL ASSEMBLY

FOR MODELS

5008731 and 5008732 6508731 and 6508732

FOR PARTS LISTING SEE PAGE 46

USE ONLY MANUFACTURER'S

AUTHORIZED PARTS

--441

CONTROL ASSEMBLY FOR MODELS-

5508331 and 5508332

FOR PARTS LISTING SEE PAGE 46

Williams Top Vent Gas-Fired Wail Furnace

REPLACEMENTPARTSFORMODELS5008731 5008732; 5508331; 5508332; 6508731 AND 6508732

REF. PART NO. FOR MODEL:

NO. DESCRIPTION

1 Outer Casing, Less Front Panel

2 Inner Liner

3 Heating Element

€ Relief Opening Pan 5 Top Front Panel

6 Center Front Panel 7 Switch Box

8 Limit Switch 9 Selector Switch

10 Fan Switch

11 Bottom Front Panel

12 Element Base Gasket 13 Fan Shroud

14 Relief Pan Gasket

15 Vent Cover 16 Header Gasket (3 Req.)

17 Flue Collar Gasket 18 Header

19 Limit Switch 20 Switch Box Cover

21 Lower Element Base Angle 22 Transformer, 115V/24V 23 Junction Box

2¢ Internal Wires (All Except Ign. ControI 25 Vibration Isolators (4 Req.)

26 Motor Support (2 Req.) 27 Motor 28 Fan Blade

29 Deflector Baffle Handle 30 _ Vent Enclosure Side (2 Req.)

31 _ Vent Enclosure Front 30 _r Vent Enclosure Side (2 Req.)

31 "JrVent Enclosure Front

32 • Rear Grille, Two-Way

33 _r Rear Outer Boot, 10" Long

3¢ _Plaster Ground

35 _Rear Inner Boot, 10-3/4" Long

36 _" Damper

32 _" Rear Grille, Two-Way

33 _'Rear Outer Boot, 7/8" Long

34 _Plaster Ground

35 .kRear Inner Boot, 1-5/8" Long 36 11rDamper

37 _Diffusing Gril]e Kit (Two-Way)

37 _Diffusing Grille Kit (One-Way)

NOTE: Screws and bolts are standard hardware items, available locally.

"k Not available separately, in kit form only.

5008731

7055-4

11B46

7069 7D10

7B126 11060

11B05 P200300 P213400

P200200

11B103

P026500

78106

=028300

7812 7A68

P027100

7811€

P321127

11068

7Al17

P024200

7829

5008731

P022800

7B€6

P062101

P200600

11063

9812

9824

6801

6802

6705 6704

5008732

7055_t

11B46

7C69 7D10

7B126

11060 11B05

P200300

P213400 P200200

11B103

P026500

78106

P028300

7B12

7A68

P027100

78114

P32t127

11068 7Al17

P02€200

7829

5008732

P022800

7846

P062101

P200600

11063

9812

9824

6801

6802

6705 6704 i

5508331 5508332

7C55-3 7C55-3

7879 7B79 7C68 7C68

7D10 7D10

7B126 78126

11059 11C59

11B05 118O5

P296001 P296001 P296201 P296201

P200200 P2O020O

11B103 11B103

P026500 P026500

7B106 78106

P028300 P028300:

7812 7812

7A68 7A68

P027100 P027100

7B57 7B57

P321127 P321127

11068 11068 7Al17 7Al17

P024200 P024200

7B29 7829

5508331 5508332 P022800 P022800

7B46 7846

P062101 P062101

P200600 P200600

11063 11063

9812 9812

9824 9824

6801 6801

6802 6802

6703 6703 6704 6704

6508731 6508732

7C55-3 7C55-3

7879 7B79

7C54-3 7054-3

7D09 7D09

7B126 7B126

11059 11059 11805 11805

P200300 P200300

P296201 P296201

P200200 P200200

11B103 118103

>026500P02650C

78106 78106

P028300 P02830C

7B12 7812

7A68 7A68

P027100 P027100

7857 7B57

P321127 P321127

11068 11068 7Al17 7Al17

P024200 P024200

7B29 7B29 6508731 6508732 P022800 P022800

7846 7B46

P321601 P321601

P014300 P014300

11063 11063

9812 9812

9824 9824

6801 6801

6802 6802

6703 6703

6704 6704

For parts illustration see pages 4.3 and 44.

m45--

Williams Top Vent Gas-Fired Wall Furnace

REPLACEMENT PARTS FOR MODELS 5008731; 5008732; 5508531; 5508332; 6508751 AND 6508732

REF.

NO. DESCRIPTION

38 _ Side Inner Boot, 10-3/4" Long 39 _rSide Outer Boot, 10" Long

40 ,k Side Plaster Ground

41 • Side Grille

38 _r Side Inner Boot, 1" Long

41 _r Side Grille

_" _" Trim Strip Kit (Not Shown)

_" _ Oval B/W Vent Kit (Not Shown) 42 Manifold 4-5 Orifice Fitting, Specify Model& Gas (2 Req.)

44 Locknut (2 Req.) 45 Valve, _LLIAMS Nat.

Valve, WILLIAMS L.P.O.

46 Thermostat 47 Junction Block Thermocouple 47 Flame Sensor

48 Pilot, Cast Iron Burner, Robertshow LP.G.

Pilot, Cast Iron Burner, Robertshaw Net. Pilot, Formed Steel Burner, Robertshaw Not.

4-9 Burner Spacer, Cast Iron Burner (2 Req.)

Burner Spacer, Formed Steel Burner (2 Req.)

50 Burner, Cost Iron, Nat. or L.P.G. (2 Req.)

Burner,Formed Steel, Nat. Gas Only(2 Req.)

51 Ignition Control

52 Wire Assembly 53 Wire Assembly

54- Wire Assembly (2 Req.)

55 Manifold Adapter 56 Ignition Contro; Shield

57 Ignition Control Wires (Not Shown)

PART NO. FOR MODEL:

5008731

6701

6702

4-701 9901

7B80 P090500 P026200

P32204-2 P322017

P321828

P179800

P018!00

P025600

P322048 P321888

5008732 5508331

6701 6701

6702 6702

4701 4-701 9901 9901

7B80 7B80 P090500 P090500 P026200 P026200

P32204-1 --

-- P322044-

P322017 P322017

P321828 --

-- P271100

-- P229200

P179700 --

P321837 --

P018100 P018100 P230500 --

P025600 P025600

7C52

-- P321910

-- P321524-

-- P32204-8

P32204-8 -- P321888 P321887

-- 7C79

-- 31B036

5508332

6701

6702

4-701 9901

7B80

P090500 P026200

P322043

P322017

P271100

P229100 P229300

P018100 P230500 P025600

7C52 P321910 P321524

P32204-8

P321887

7C79

31B036

6508731

6701

67O2

4-701 9901

7B80

P090500 P026200

P32204-2 P322017

P321828

P179800

P018100

P025600

P322048

P321888

6508732

6701

67O2

4701

9901

7B80

P09050C P02620C

P322041

P322017 P321828

P179700

P018100

iP025600

P32204-8

P321888

NOTE: Screws and bolts are standard hardware items, available locally.

• " Not available separately, in kit form only. For parts illustration see pages 4,3 and 44.

Notes

Service Hints

If your furnace fails to work right, you may avoid inconvenience and the cost

of a service call by checking the following points before you call for service.

FOR YOUR SAFETY FOR YOUR SAFETY

owners

manual

SERVICE

MODEL NOS.

3508331 3508332 3508731 3508732 5008731 5008732 5508331 5508332

6508731

6508732

Do not store or use gasoline If you smell gas: or other flammable vapors and 1. Open windows.

liquids in the vicinity of this or any 2. Don't touch electrical.

other appliance. 4. Immediately call your gas

POSSIBLE CAUSE WHAT TO DO

If fan motor is noisy -- Housing rattling.

Fan dirty. Fan blade bent.

Motor bearings need oiling. If fan does not run --

Fuse blown or tripped circuit

breaker.

Motor bearings need oiling. If your furnace is not heating or

not giving enough heat --

Fuse blown or tripped circuit

breaker.

Thermostat is not set correctly. Air flow restricted.

3. Extinguish any open flame. supplier.

Tighten screws.

Clean fan blade. Replace fan blade.

Oil motor.

Replace fuse or reset breaker. Oil motor.

Replace fuse or reset breaker.

Reset thermostat to desired

setting.

Check that doors, drapes or

furniture are not blocking furnace louvers.

If your furnace short cycles -- Thermostat anticipator not set

correctly.

If your furnace pops and cracks -- Heat exchanger expansion and Normal condition, especially

contraction, with newer furnaces.

See troubleshooting section for more detailed information.

How to Order Repair Parts

When ordering repair parts, always give the following information:

1. MODEL NUMBER 2 MFG. DATE CODE

3 PART NUMBER 4 PART DESCRIPTION

WILLIAMS FURNACE COMPANY

All parts listed herein may be ordered from your equip- ment supplier.

The Model Number of your Williams wall furnace will be found on the rating plate near gas valve, inside control

compartment.

225 Acacia Street

Colton, CA 92324 USA

(909) 825-0993

Set anticipator (See Page 20).

MANUFACTURED

IN THE U.S.A.

Established 1916

FAX: (909) 824-8009

Williams 6508732, 6508731, 5508332, 5008732, 5008731 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual