Empire GWT-50-3, GWT-50-3 SG, GWT-50-3 RB Installation Instructions And Owner's Manual

INSTALLATION INSTRUCTIONS

AND

OWNER'S MANUAL

GRAVITY VENTED

DUAL WALL FURNACE

MODEL

GWT-50-3 (SG, RB)

Installer: Leave this manual with the appliance.
Consumer: Retain this manual for future reference.

WARNING: If not installed, operated and maintained
in accordance with the manufacturer's instructions,
this product could expose you to substances in fuel
or from fuel combustion which can cause death or
serious illness.

WARNING: If the information in these instructions

are not followed exactly, a re or explosion may

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

— Donot storeor usegasoline orother ammable

vapors and liquids in the vicinity of this or any
other appliance.

— WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.

• Do not touch any electrical 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.

• If you cannot reach your gas supplier, call the

redepartment.

— Installation and service must be performed by a

qualiedinstaller,serviceagencyorthegassup­plier.

Page 1

TABLE OF CONTENTS

SECTION PAGE

Important Safety Information ....................................................................................3

Safety Information for Users of LP Gas ...................................................................4

Introduction ..............................................................................................................5

Specications ...........................................................................................................5

Recommended Vent Conguration ..........................................................................6

Gas Supply ...............................................................................................................7

Clearances ..............................................................................................................8

Ventilation and Combustion Air ................................................................................8

Location - All Models ................................................................................................8

Rough-In Instructions ............................................................................................8-9

Finishing Instructions ..........................................................................................9-10

Optional Thermostat Location (SG Models) ........................................................... 11

Lighting Instructions ...............................................................................................12

Vent Safety Shutoff System ...................................................................................13

Proper Main Burner Flame .....................................................................................13

Proper Pilot Flame .................................................................................................13

Troubleshooting ......................................................................................................14

Parts List ................................................................................................................15

How To Order Repair Parts ....................................................................................15

Parts View .............................................................................................................16

Remote Bulb Control Installation Instructions ........................................................17

Optional Blower Installation Instructions .......................................................... 18-19

Service Notes .........................................................................................................20

Master Parts Distributor List ...................................................................................21

Warranty .................................................................................................................22

32039-1-0314Page 2

IMPORTANT SAFETY INFORMATION

THIS IS A HEATING APPLIANCE

DO NOT OPERATE THIS APPLIANCE WITHOUT OUTER CASING INSTALLED.

• Due to high temperatures the appliance should be

locatedoutoftrafcandawayfromfurnitureand

draperies.

• Children and adults should be alerted to the hazards
of high surface temperatures and should stay away
to avoid burns or clothing ignition.

• Young children should be carefully supervised when
they are in the same room as the appliance.

• Clothingorotherammablematerialshouldnotbe

placed on or near the appliance.

• Any safety screen or guard removed for servicing
an appliance must be replaced prior to operating
the appliance.

• Keep burner and control compartment clean.

• Installation and repair should be done by a
QUALIFIED SERVICE PERSON. The appliance
should be inspected before use and at least annually

by  a qualied service person.  More frequent

cleaning may be required due to excessive lint from
carpeting, bedding materials, etc. It is imperative
that control compartments, burners and circulating

air passageways of the appliance be kept clean.

• DO NOT put anything around the furnace that will

obstructtheowofcombustionandventilationair.

• DO keep the appliance area clear and free from

combustiblematerial,gasolineandotherammable

vapors and liquids.

• DO examine venting system periodically and replace
damaged parts.

• DO make a periodic visual check of pilot and burners.
Clean and replace damaged parts.

• DO NOT use this heater if any part has been under

water.Immediatelycallaqualiedservicetechnician

to inspect the heater and to replace any part of the
control system and any gas control which has been
under water.

• This furnace must not be connected to a chimney

ueservingaseparatesolid-fuelburningappliance.

32039-1-0314 Page 3

SAFETY INFORMATION FOR USERS OF LP-GAS

Propane(LP-Gas)isaammablegaswhichcancauseres

and explosions. In its natural state, propane is odorless and
colorless. You may not know all the following safety precau­tions which can protect both you and your family from an
accident. Read them carefully now, then review them point by

point with the members of your household. Someday when
there may not be a minute to lose, everyone's safety will depend
on knowing exactly what to do. If, after reading the following
information, you feel you still need more information, please
contact your gas supplier.

LP-GAS WARNING ODOR

If a gas leak happens, you should be able to smell the gas because of the odorant put in the LP-Gas.

That's your signal to go into immediate action!

• Do not operate electric switches, light matches, use your
phone. Do not do anything that could ignite the gas.

• Get everyone out of the building, vehicle, trailer, or area. Do
that IMMEDIATELY.

• Close all gas tank or cylinder supply valves.

• LP-Gas is heavier than air and may settle in low areas such
as basements. When you have reason to suspect a gas leak,
keep out of basements and other low areas. Stay out until

reghters declare them to be safe.

• Use your neighbor's phone and call a trained LP-Gas service

person and the re department. Even though you may not

continue to smell gas, do not turn on the gas again. Do not
re-enter the building, vehicle, trailer, or area.

• Finally, let the service man and reghters check for escaped

gas. Have them air out the area before you return. Properly
trained LP-Gas service people should repair the leak, then
check and relight the gas appliance for you.

NO ODOR DETECTED - ODOR FADE

Some people cannot smell well. Some people cannot smell the

odorofthechemicalputintothegas.Youmustndoutifyou

can smell the odorant in propane. Smoking can decrease your
ability to smell. Being around an odor for a time can affect your
sensitivity or ability to detect that odor. Sometimes other odors in
the area mask the gas odor. People may not smell the gas odor
or their minds are on something else. Thinking about smelling a
gas odor can make it easier to smell.

The odorant in LP-gas is colorless, and it can fade under
some circumstances. For example, if there is an underground

leak, the movement of the gas through soil can lter the odorant.

Odorants in LP-Gas also are subject to oxidation. This fading can
occur if there is rust inside the storage tank or in iron gas pipes.
The odorant in escaped gas can adsorb or absorb onto or into

walls, masonry and other materials and fabrics in a room. That will
take some of the odorant out of the gas, reducing its odor intensity.
LP-Gas may stratify in a closed area, and the odor intensity could
vary at different levels. Since it is heavier than air, there may be
more odor at lower levels. Always be sensitive to the slightest gas
odor. If you detect any odor, treat it as a serious leak. Immediately
go into action as instructed earlier.

• Learn to recognize the odor of LP-gas. Your local LP-Gas

Dealer can give you a "Scratch and Sniff" pamphlet. Use it to

nd out what the propane odor smells like. If you suspect that

your LP-Gas has a weak or abnormal odor, call your LP-Gas
Dealer.

• If you are not qualied, do not light pilot lights, perform service,

or make adjustments to appliances on the LP-Gas system. If

you are qualied, consciously think about the odor of LP-Gas

prior to and while lighting pilot lights or performing service or
making adjustments.

• Sometimes a basement or a closed-up house has a musty
smell that can cover up the LP-Gas odor. Do not try to light
pilot lights, perform service, or make adjustments in an area
where the conditions are such that you may not detect the
odor if there has been a leak of LP-Gas.

• Odor fade, due to oxidation by rust or adsorption on walls of
new cylinders and tanks, is possible. Therefore, people should
be particularly alert and careful when new tanks or cylinders
are placed in service. Odor fade can occur in new tanks, or

reinstalled old tanks, if they are lled and allowed to set too
long before relling. Cylinders and tanks which have been

out of service for a time may develop internal rust which will
cause odor fade. If such conditions are suspected to exist,

SOME POINTS TO REMEMBER

a periodic sniff test of the gas is advisable. If you have any
question about the gas odor, call your LP-gas dealer. A
periodic sniff test of the LP-gas is a good safety measure
under any condition.

• If, at any time, you do not smell the LP-Gas odorant and you
think you should, assume you have a leak. Then take the same
immediate action recommended above for the occasion when
you do detect the odorized LP-Gas.

• If you experience a complete "gas out," (the container is un­der no vapor pressure), turn the tank valve off immediately.
If the container valve is left on, the container may draw in

some air through openings such as pilot light orices. If this

occurs, some new internal rusting could occur. If the valve is
left open, then treat the container as a new tank. Always be
sure your container is under vapor pressure by turning it off
at the container before it goes completely empty or having it

relled before it is completely empty.

32039-1-0314Page 4

INTRODUCTION

Introduction

Vented wall furnace is shipped ready to install in a 2" x 4" stud wall,
with studs 16" (406mm) center to center. Always consult your local
Building Department regarding regulations, codes or ordinances
which apply to the installation of a vented wall furnace.

Instructions to Installer

1. Installer must leave instruction manual with owner after instal­lation.

2. Installer must have owner ll out and mail warranty card sup­plied with furnace.

3. Installer should show owner how to start and operate furnace
and thermostat.

Warning:
Any change to this furnace or its control can be dangerous.
This is a heating appliance and any panel, door or guard
removed for servicing an appliance must be replaced prior
to operating the appliance.

To conserve Gas: Turn off pilot when heater is not in use.

General Information

This series is design certied in accordance with American National

Standard / CSA Standard Z21.86 and CSA 2.32 by the Canadian
Standards Association, as a Vented Wall Furnace and must be
installed according to these instructions.

Any alteration of the original design, installed other than as
shown in these instructions or use with a type of gas not
shown on the rating plate is the responsibility of the person
and company making the change.

Important

All correspondence should refer to complete Model No., Serial No.
and type of gas.

Notice: During initial ring of this furnace, its paint will bake out and
smoke will occur. To prevent triggering of smoke alarms, ventilate
the room in which the furnace is installed.

Installation in Residential Garages

Gas utilization equipment in residential garages shall be installed
so that all burners and burner ignition devices are located not less

than 18" (457mm) above the oor.

Such equipment shall be located, or protected, so it is not subject
to physical damage by a moving vehicle.

QualiedInstallingAgency

Installation and replacement of gas piping, gas utilization equipment
or accessories and repair and servicing of equipment shall be

performed only by a qualied agency. The term "qualied agency"
means any individual, rm, corporation or company which either in

person or through a representative is engaged in and is responsible for
(a) the installation or replacement of gas piping or (b) the connection,
installation, repair or servicing of equipment, who is experienced in
such work, familiar with all precautions required and has complied
with all the requirements of the authority having jurisdiction.

State of Massachusetts: The installation must be made

by a licensed plumber or gas tter in the Commonwealth of

Massachusetts.

The installation must conform to local codes or, in the absence of
local codes, with the National Fuel Gas Code ANSI Z223.1/NFPA

54* Natural Gas and Propane Installation Code, CSA B149.1.
*Available from the American National Standards Institute, Inc., 11
West 42nd St., New York, N.Y. 10036.

High Altitudes

For altitudes/elevations above 2,000 feet (610m), input ratings
should be reduced at the rate of 4 percent for each 1,000 (305m)
feet above sea level. Canadian High Altitudes for locations having
an elevation above mean sea level between 2,000 feet (610m) and
4,500 feet (1370m), the manifold pressure is to be decreased from

3.5" w.c. (.871kPa) to 3.0" w.c. (.747kPa) for Natural Gas and from

10.0" w.c. (2.49kPa) to 8.0" w.c. (1.992kPa) for Propane Gas.

Model GWT-50
Input BTU/HR (KW/H) 50,000 (14.7)
Height 66 1/8" (1679mm)
Width 16" (406mm)
Depth (Out of wall) 6" (152mm)
Gas Inlet Pipe 1/2"
Vent Pipe Type B Oval 4" (102mm)

Accessory

Blower Package GWTB-2
Wall Thermostat Millivolt TMV
Wireless Remote Wall Thermostat TRW
Remote Bulb Thermostat GWRBT
GWT-50 (SG, RB) Is a DUAL WALL Furnace. Warmed air is discharged into two rooms which share a common wall.

32039-1-0314 Page 5

SPECIFICATIONS

RECOMMENDED VENT CONFIGURATION

Note: No vent equipment supplied with furnace.
4" Oval (all parts purchase locally)

1. Type B-1 oval pipe

2. Single story type B-1 gas vents require a baseplate and one pair of
ceiling plate spacers.

3. Multi-story type B-1 gas vents require a baseplate, one pair of ceiling

plate spacers at the rst oor ceiling and one pair of re stop spacers

at each successive ceiling level.

Type B-W gas vent pipe is available for single story or multi-story
installations. Type B-W gas vent pipe is to be used with the

Listed base plate, ceiling plate spacers and re stop spacers.

Insulated Vent Enclosure

Gravity vented wall furnaces installed in buildings with at roofs can have

poor venting. The cold vent pipe will have a delay in proper venting and
cause the wall furnace to shut "off" by the vent safety switch. To prevent

delayed venting as well as condensation of ue products an insulated vent

enclosure is recommended.
Use Type B vent pipe and maintain at least a one inch (25mm) clearance

to combustibles.
Use metal thimble to protect vent pipe as it passes through combustibles.
Baseplate Gasket is factory installed on header. Baseplate attaches to header

with screws. B-vent snaps into and is attached to baseplate. Minimum
height of vent pipe must be six feet (1.8m) above header.

Stud space around gas vents must be free of obstructions and building paper.
Uninsulated Single-Wall Metal Pipe shall not be used outdoors in cold

climates for venting gas utilization equipment.
Attention: The main burner uses room air for combustion. As the gas/air

mixture is injected into the main burner, there is also the ow of dust and

lint particles into the main burner.
Dust and lint accumulation inside the main burner will result in a yellow main

burner ame and possible sooting inside the combustion chamber and vent

pipe. To clean main burner refer to Page 13, "Proper Main Burner Flame."

32039-1-0314Page 6

GAS SUPPLY

Check all local codes for requirements, especially for the size and
type of gas supply line required.

Recommended Gas Pipe Diameter

Pipe Length Schedule 40 Pipe

Inside Diameter

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

0-10 feet

0-3 meters

10-40 feet

4-12 meters

40-100 feet

13-30 meters

100-150 feet

31-46 meters

Note: Never use plastic pipe. Check to conrm whether your local

codes allow copper tubing or galvanized.
Note: Since some municipalities have additional local codes, it is

always best to consult your local authority and installation code.

Check all local codes for requirements, especially for the size and
type of gas supply line required. On Natural gas lines less than 15'
(4.57m) long, use 1/2" pipe; on longer runs, use 3/4" iron pipe or
equal. On LP gas lines please consult LP gas supplier.

Installing a New Main Gas Cock

Each appliance should have its own manual gas cock.
A manual main gas cock should be located in the vicinity of the unit.

Where none exists, or where its size or location is not adequate,
contact your local authorized installer for installation or relocation.

Compounds used on threaded joints of gas piping shall be resistant

to the action of liqueed petroleum gases. The gas lines must be

checked for leaks by the installer. This should be done with a soap
solution watching for bubbles on all exposed connections, and if
unexposed, a pressure test should be made.

Neveruseanexposedametocheckforleaks.Appliancemust

be disconnected from piping at inlet of control valve and pipe
capped or plugged for pressure test. Never pressure test with
appliance connected; control valve will sustain damage!

A gas valve and ground joint union should be installed in the gas
line upstream of the gas control to aid in servicing. It is required by
the National Fuel Gas Code that a drip line be installed near the gas
inlet. This should consist of a vertical length of pipe tee connected
into the gas line that is capped on the bottom in which condensation
and foreign particles may collect.

1/2”

12.7mm
1/2”

12.7mm
1/2”

12.7mm
3/4”

19mm

3/8”

9.5mm
1/2”

12.7mm
1/2”

12.7mm
1/2”

12.7mm

Tubing, Type L

Outside Diameter

1/2”

12.7mm
5/8”

15.9mm
3/4”

19mm

7/8”

22.2mm

3/8”

9.5mm
1/2”

12.7mm
1/2”

12.7mm
3/4”

19mm

Figure 1

The use of the following gas connectors is recommended:
— ANS Z21.24 Appliance Connectors of Corrugated Metal Tubing

and Fittings

— ANS Z21.45 Assembled Flexible Appliance Connectors of Other

Than All-Metal Construction

The above connectors may be used if acceptable by the authority
having jurisdiction. The state of Massachusetts requires that a

exible appliance connector cannot exceed three feet in length.

Pressure Testing of the Gas Supply System

1. To check the inlet pressure to the gas valve, a 1/8" (3.175mm)
N.P.T. plugged tapping, accessible for test gauge connection,
must be placed immediately upstream of the gas supply
connection to the appliance.

2. The appliance and its individual shutoff valve must be
disconnected from the gas supply piping system during any
pressure testing of that system at test pressures in excess of
1/2 psig (3.5 kPa).

3. The appliance must be isolated from the gas supply piping
system by closing its individual manual shutoff valve during
any pressure testing of the gas supply piping system at test
pressures equal to or less than 1/2 psig (3.5 kPa).

Attention! If one of the procedures results in pressures in excess
of 1/2 psig (14" w.c.) (3.5 kPa) on the appliance gas valve, it will
result in a hazardous condition.

Checking Manifold Pressure

Both Propane and Natural gas valves have a built-in pressure
regulator in the gas valve. Natural gas models will have a manifold
pressure of approximately 3.5" w.c. (.871kPa) at the valve outlet
with the inlet pressure to the valve from a minimum of 4.5" w.c.
(1.120kPa) for the purpose of input adjustment to a maximum of

10.5" w.c. (2.614kPa) Propane gas models will have a manifold

pressure approximately 10.0" w.c. (2.49kPa) at the valve outlet
with the inlet pressure to the valve from a minimum of 11.0" w.c.
(2.739kPa) for the purpose of input adjustment to a maximum of

13.0" w.c. (3.237kPa).

A 1/8" (3.175mm) N.P.T. plugged tapping, accessible for test gauge
connection, is located on the outlet side of the gas control.

32039-1-0314 Page 7

CLEARANCES

1. In selecting a location for installation, it is necessary to provide
adequate accessibility clearances for servicing and proper
installation.

2. Clearances to combustible surfaces are 4" (102mm) from sides,

12" (305mm) to top, 1 1/2" (38mm) from oor.

NOTE: Minimum distance of 1 1/2" (38mm) must also be maintained

VENTILATION AND COMBUSTION AIR

Wall furnaces shall be installed in a location in which the facilities
for ventilation permit satisfactory combustion of gas and proper
venting under normal conditions. In buildings of conventional frame,
brick, or stone construction without tight storm windows and doors,

inltration is normally adequate to provide air for combustion and

draft hood dilution.

from top surface of carpeting, tile, etc.

Where appliances are installed in conned and unconned spaces

within a building, the building being of unusually tight construction,
air for combustion and ventilation must be obtained directly from
outdoors or from such spaces that freely communicate with the

outdoors. Under these conditions, the conned and unconned

spaces shall be provided with two permanent openings, one near
the top of the enclosure and one near the bottom; each opening
shall have a free area of not less than one square inch (6.45cm2)
per 2,000 BTU (.6KW/H) per hour of total input.

LOCATION - ALL MODELS

Select a location near the center of the space to be heated. Overow
heat will circulate through doorways into adjacent rooms.

For large homes or spread-out oor plans, two or more furnaces are

recommended. Do not locate furnace where a door could swing
over the outer casing, or where circulation could be retarded by
furniture or cabinets.

Do not install in a closet, alcove or small hallway where the furnace
could be isolated by closing doors to the heated space.

When location is selected, check the walls, attic and roof to make

ROUGH-IN INSTRUCTIONS

Provide an opening in the wall 14 1/2" (368mm) wide and 66 1/8"

(168cm) high measured from top of oor plate (See Figure 2 and

Figure 3). Wall depth is to be 2" x 4" framing with 1/4" (6.5mm) to
5/8" (16mm) sheeting. Attach baseplate (not supplied with furnace)
to header plate with sheet metal screws at each end. Attach 4"
(102mm) oval, double wall vent pipe to baseplate. Attach enough vent
pipe so that when installed in wall opening the vent pipe will extend
above the ceiling plate by at least 6" (152mm). Install ceiling spacers
according to manufacturer's instructions. Two header extensions
are attached to the header plate. One header extension is welded
to the header plate and one header extension is screwed to the
header plate. To install header plate into wall opening remove the
header extension that is screwed to the header plate (2 screws).

sure there are no obstructions such as pipes, electric wiring, etc.,
which would interfere with the installation of the furnace or vent pipe.

NOTE: If Optional Blower is to be used, hard wiring must be

completed for the optional blower prior to installation of
header plate.

Insert header plate with attached 4" oval, double wall vent pipe
into wall opening. Position header plate at height shown in Figure

2. Locate rear edge of nailing ange at the back of the 2" x 4" stud

which will center the vent collar in the wall. Locate the angled edge

of header plate ush with the top of the wall opening. Nail header

plate to the wall studs. Replace and attach header extension onto
header plate with 2 screws.

32039-1-0314Page 8

62 1/4”

(1581 mm)

14 ½”

(368 mm)

Figure 2

66 1/8”

(1679 mm)

WALL

OPENING

FINISHING INSTRUCTIONS

Figure 3

Plastering (Figure 4)

In new construction use only plain (not perforated) gypsum lath
around furnace and vent pipe so that plaster "Keys" will not project
into wall space.

Use wood strips nailed to inside of studs and top of bottom plate.
These must be removed before installation of furnace. Lath and
plaster against top projection of Header Plate.

Do not allow wall nish materials to project into furnace recess..

14 ½”

(368 mm)

66 1/8”

(1679 mm)

WALL

OPENING

Installing Furnace (Figure 5)

Clear the recess of all debris, and remove any wood plaster-grounds.

Stand the furnace on oor in front of wall opening.
Insert furnace ue into rectangular opening in header plate and

raise furnace carefully (see Figure 5). Swing bottom of furnace into

wall opening with back of legs ush with rear of oor plate. Secure
furnace support legs to the oor plate.

Figure 4

32039-1-0314 Page 9

Figure 5

FINISHING INSTRUCTIONS (continued)

IMPORTANT — Avoid securing too tightly and disturbing the inner

casing. Do not try to force furnace into a wall opening which is

smaller than specied dimension.

OUTER CASING (Figure 6)

1. Align 1 3/4" slot on casing bracket with bottom screw hole on
inner casing. Attach casing bracket to inner casing with one (1)
10 x 1/2" screws for each casing bracket. Do not completely
tighten screws at this time.

2. Place outer casing onto header.

Attention: Use center clearance hole on outer casing top for

attachment to header with one (1) 8 x 3/8" Phillips screw when

optional blower is not installed.

Attention: Use outside clearance holes on outer casing top

for attachment to header with two (2) 8 x 3/8" Phillips screws

when optional blower is installed.

3. Align clearance holes on outer casing bottom with screw holes
on casing brackets by adjusting slots on casing brackets.

4. Complete tightening casing bracket screws from Step 1 to inner
casing at this time.

5. Attach outer casing to casing brackets with two (2) 10 x 1-1/2"
screws.

INSTALLING CONTROL DOOR

Attach two washers supplied in hardware package to pivot pins
located at bottom of control door. Install control door to outer cas­ing assembly.

Figure 6

32039-1-0314Page 10

THERMOSTAT LOCATION (SG MODELS)

CAUTION — Do not run wire behind anges of Header Plate or in

any location where it might be damaged.
Millivolt wall thermostats are specially designed for use on self-

generating systems. They should never be used on line or low
voltage A.C. circuits.

Interior Wall — The thermostat should be installed on an inside
wall away from the furnace but in the same room.

It is important to use wire of a gauge proper for the length of the wire:

RECOMMENDED WIRE GAUGES

Maximum Length Wire Gauge

1' to 10' 18
10' to 25' 16
25' to 35' 14

Proper operation depends on a good pilot ame. The ame must
cover the top of the thermopile. Cleaning of the pilot orice and

burner may be required due to spiders.

System Check (Figure 7)

A millivolt meter is required to check the system. Millivolt readings
should be:

• Across the thermopile terminals, 400-450 millivolts with
thermostat OFF.

• Across the thermopile terminals, 150-250 millivolts with
thermostat ON.

• Across the thermostat wires at the valve, less than 30 millivolts
with thermostat ON.

• Across the thermostat wires at the thermostat, less than 5
millivolts with thermostat ON. (Dirty pilot or low pressure will
reduce readings.)

Figure 7

To conserve Gas: Turn off pilot when heater is not in use.

Connect thermostat wires to gas valve as shown in Figure 7.

32039-1-0314 Page 11

GAS CONTROL KNOB SHOWN IN "OFF" POSITION

LIGHTING INSTRUCTIONS

FOR YOUR SAFETY READ BEFORE LIGHTING

WARNING:Ifyoudonotfollowtheseinstructionsexactly,areorexplosion

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

A. This appliance has a pilot which must be lighted by hand.

When lighting the pilot, follow these instructions exactly.

B. BEFORE LIGHTING smell all around the appliance area

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

WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.

• Do not touch any electrical 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.

• Ifyoucannotreachyourgassupplier,calltheredepart­ment.

LIGHTING INSTRUCTIONS

1. STOP! Read the safety information above.

2. Set the thermostat to lowest setting (if applicable).

3. Turn off all electric power to the appliance (if applicable).

4. Remove control access panel (control door).

5. Push in gas control knob slightly and turn clockwise

to "OFF."

NOTE: Knob cannot be turned from "PILOT" to "OFF"
unless knob is pushed in slightly. Do not force.

6. Wait ten (10) minutes to clear out any gas. Then smell

forgas,includingneartheoor.Ifyousmellgas,STOP!

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

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

8. Turn gas control knob counterclockwise to "PI­LOT."

C. 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qualiedservice
technician.Forceorattemptedrepairmayresultinare

or explosion.

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

Immediatelycallaqualiedservicetechniciantoinspect

the appliance and to replace any part of the control system
and any gas control which has been under water.

9. Push in control knob all the way and
hold in. Immediately light the pilot with
a match. Continue to hold the control
knob in for about one (1) minute after
the pilot is lit. Release knob and it will
pop back up. Pilot should remain lit. If
it goes out, repeat steps 5 through 9.

• If knob does not pop up when released, stop and imme-

diatelycallaqualied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.

10. Turn gas control knob counterclockwise to "ON."

11. Replace control access panel (control door).

12. Turn on all electric power to the appliance (if applicable).

13. Set thermostat to desired setting (if applicable).

TO TURN OFF GAS TO APPLIANCE

1. Set the thermostat to lowest setting.

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

3. Remove control access panel (control door).

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

5. Replace control access panel (control door).

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VENT SAFETY SHUTOFF SYSTEM

This appliance must be properly connected to a venting system. This
appliance is equipped with a vent safety shutoff system.

Warning: Operation of this wall furnace when not connected
to a properly installed and maintained venting system or
tampering with the vent safety shutoff system can result in
carbon monoxide (CO) poisoning and possible death.

This furnace is equipped with a manual reset vent safety switch. The

manual reset vent safety switch will cause gas ow to the main burner
to "shut off" due to improper venting or a blocked ue.

To reset the manual reset vent safety switch:

1. Remove outer casing.

2. Depress manual reset button. The manual reset vent safety switch
is located on the draft diverter.

3. Replace outer casing.

If the manual reset vent safety switch continues to "shut off" the gas

ow to the main burner a qualied service person must be contacted to

inspect for improper venting, blockage in the vent pipe or the manual
reset vent safety switch for being defective.

PROPER MAIN BURNER FLAME

The correct ame will be a short blue inner ame with a much larger light
blue outer ame. The burner does not have a primary air adjustment.
The ame will be proper if the factory-set pressure and orice are used.

After the furnace has begun operating, cleaning of the burner may be

needed for proper ame, examine at least 2 times per season.

To clean burner ports, disconnect the gas supply to the valve. Remove the
burner assembly from the combustion chamber. Remove pilot burner from
main burner and then remove the main burner. Force water into the ports
and blow dry with vacuum cleaner air, or low pressure compressed air.

PROPER PILOT FLAME

The correct ame will be blue, extending past the thermopile. The ame

will surround the thermopile just below its tip.
Natural gas pilots require adjusting when the inlet gas pressure is above

5" w.c. (1.245kPa). Remove the pilot cover screw on the control valve

and turn the adjustment screw clockwise to reduce ame. Replace

pilot cover screw to eliminate gas leaking at that control valve opening.
LP gas (propane) will not require adjustment.

After use, cleaning may be required for the proper ame.
Examine the pilot ame before and during each heating season.

Figure 8

Figure 9

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Figure 10

TROUBLESHOOTING

GENERAL All furnaces have been re-tested to check for proper

operation. This includes main burner ame, pilot ame, and gas

control operation. If the furnace fails to function on initial installation,
it is advisable to re-check the following:

1. Inlet gas pressure.

2. Type of gas being used and that shown on the rating plate.

The Service Department at Empire Comfort Systems, Inc. may be
contacted to assist in servicing furnace.

ServicingthePilotandMainBurner,PilotOrice,Thermopile
andMainBurnerOrice

Disconnect the gas supply at the inlet to the control valve. Remove
the burner assembly to which the above components are attached.

Pilot Does Not Light

With air in the gas line, such as when the furnace is rst installed
or was "OFF" all summer, the pilot ame may be too lean to ignite
on the rst few trials. Turn the gas control knob to PILOT position

and depress the gas control knob. Hold the gas control knob down
to bleed the line;

1. Use lighter rod to light pilot with a match.

If Pilot Does Not Light By Any Means

1. Check gas control knob for being in the "Pilot" position.

2. Check pilot adjustment for being full open (counterclockwise
to open).

3. If gas is available in the supply tubing, the pilot orice and/

or pilot burner is probably restricted by a spider web. Clean
pilot assembly and relight.

If Pilot Does Not Remain "On" After Releasing Gas Control Knob

1. Follow instructions and hold gas control knob down longer
and harder.

2. Determine if pilot ame extends past thermopile; if not, adjust
pilot ame or clean pilot burner.

3. Replace thermopile if millivolt reading is less than 300 millivolts
when wall thermostat or remote bulb is turned OFF. Replace
gas control if magnet dropout millivolt reading is over 100
millivolts.

Pilot Outage During Normal Operation

1. Check input by manifold pressure gauge or gas meter.

2. Check millivolt output when furnace is in operation. If millivolt
output decreases during furnace operation gas control may
be defective.

Main Gas Valve Does Not Open When Thermostat Is Turned "On"

1. Check millivolt output of thermopile.

2. Thermostat wires may be broken.

3. Thermostat may be defective.

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