Lennox Hearth Products MDT3328CNM User manual

1NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
HOMEOWNER'S CARE AND
OPERATION INSTRUCTIONS
33" DIRECT-VENT GAS FIREPLACE HEATERS
P/N 504,140M REV. B 01/2002
MODELS
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
WH Report No. J20021557
FOR YOUR SAFETY: Do not store or use gasoline
or other flammable vapors or liquids in the vicin-
ity of this or any other appliance.
FOR YOUR SAFETY: What to do if you smell gas:
• DO NOT light any appliance.
• DO NOT touch any electrical switches.
• DO NOT use any phone in your building.
• Immediately call your gas supplier from a
neighbor’s phone.
Follow your gas suppliers instructions.
• Ifyourgassuppliercannotbereached,callthe
fire department.
Installation and service must be performed by a
qualified installer, service agency or the gas
supplier.
WARNING:IFTHEINFORMATIONINTHISMANUAL
IS NOT FOLLOWED EXACTLY, A FIRE OR EXPLO-
SION MAY RESULT CAUSING PROPERTY DAM-
AGE, PERSONAL INJURY OR LOSS OF LIFE.
POURVOTRESÉCURITÉ: Nepasentreposer niutiliser
d'essencenid'autrevapeursouliquidesinflammables
dans le voisinage de cet appareil ou de tout autre
appareil.
POUR VOTRE SÉCURITÉ: Que faire si vous sentez une
odeur de gaz:
• Ne pas tenter d'allumer d'appareil.
• Netouchezàaucuninterrupteur. Nepasvousservir
des téléphones se trouvant dans le batiment où
vous vous trouvez.
• Evacuez la piéce, le bâtiment ou la zone.
• Appelez immédiatement votre fournisseur de gaz
depuis un voisin. Suivez les instructions du
fournisseur.
• Si vous ne pouvez rejoindre le fournisseur de gaz,
appelez le service dos incendies.
L'installationetservicedoitêtreexécutéparunqualifié
installeur,agencedeserviceoulefournisseurdegaz.
AVERTISSEMENT: ASSUREZ-VOUS DE BIEN SUIVRE
LESINSTRUCTIONSDONNÉDANSCETTENOTICEPOUR
RÉDUIRE AU MINIMUM LE RISQUE D'INCENDIE OU
POUR ÉVITER TOUT DOMMAGE MATÉRIEL, TOUTE
BLESSURE OU LA MORT.
DIRECT VENT
MDT3328 & MDR3328
tlovilliM
sledoM
MNC8233TDM
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2NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
These appliances are designed to operate
on natural or propane gas only.
Inputofappliancevariesfrom13,500to17,500
BTU/HR.
WARNING: THESE FIREPLACES ARE
VENTEDHEATERS. DONOTBURN WOOD
OR OTHER MATERIAL IN THESE APPLI-
ANCES.
CONGRATULATIONS!
In selecting this LENNOX Direct-Vent Gas Appliance you have chosen the finest and most
dependable fireplace to be found anywhere. A beautiful, prestigious, alternative to a
wood burning fireplace. Welcome to a Family of tens of thousands of satisfied LENNOX
Fireplace Owners.
Please read and carefully follow all of the instructions found in this manual. Please pay
special attention to the safety instructions provided in this manual. The Homeowner's
Care and Operation Instructions included here will assure that you have many years of
dependable and enjoyable service from your LENNOX product.
INTRODUCTION
The Fireplace models covered in this manual
are Direct-Vent sealed combustion gas fire-
place heaters designed for residential applica-
tion. Direct-Vent appliances operate with the
combustionchambercompletelyisolatedfrom
the inside atmosphere. All air for combustion
is brought in from the outside and exhaust
gases are vented through the same Direct
Vent, vent system.
The millivolt appliances are designed to oper-
ate on either natural or propane gas. A millivolt
gas control valve with piezo ignition system
provides safe, efficient operation. External
electrical power is required to operate the
optional electrically powered components if
installed. Electrical power must be wired dur-
ing appliance installation.
These appliances comply with National Safety
StandardsandaretestedandlistedbyWarnock
Hersey (Report No. J20021557) to ANSI
Z21.88-2000(inCanada,CSA-2.33-2000),and
CAN/CGA-2.17-M91 in both USA and Canada,
as vented gas fireplace heaters.
Installation must conform to local codes. In
the absence of local codes, installation must
comply with the current National Fuel Gas
Code, ANSI Z223.1 (NFPA 54). (In Canada, the
currentCAN/CGAB149installationcode.) Elec-
trical wiring must comply with local codes. In
the absence of local codes, installation must
be in accordance with the National Electrical
Code, NFPA 70 - (latest edition). (In Canada,
thecurrentCSAC22.1CanadianElectricCode.)
DO NOT ATTEMPT TO ALTER OR MODIFY
THE CONSTRUCTION OF THE APPLIANCE OR
ITS COMPONENTS. ANY MODIFICATION OR
ALTERATION MAY VOID THE WARRANTY,
CERTIFICATIONANDLISTINGSOFTHISUNIT.
TABLE OF CONTENTS
Introduction..................................... page 2
General Information......................... page 2
Operation/Care of Your Appliance ... page 3
Gas Controls.................................... page 3
Variable Flame Adjustment .............. page 4
Maintenance .................................... page 4
Control Compartment Access .......... page 4
Front Glass Enclosure Panel,
Removal and Installation ............... page 4
Maintenance Schedule..................... page 5
Burner Adjustments......................... page 6
Flame Appearance and Sooting ....... page 6
Adjustment ...................................... page 6
Log Placement................................. page 7
Glowing Embers Placement ............. page 7
Appliance Checkout ......................... page 7
Wiring Diagram ............................... page 7
Warranty.......................................... page 8
Replacement Parts .......................... page 8
Product Reference Information ....... page 8
Accessory Components ................... page 8
Troubleshooting Guide ..................... page 11
Lighting Instructions ....................... page 12
Replacement Parts List ..................... page 14
GENERAL INFORMATION
Note: Installation and repair should be per-
formedby aqualifiedservice person.The appli-
ance should be inspected annually by a quali-
fied professional service technician. More fre-
quent inspections and cleanings may be re-
quired due to excessive lint from carpeting,
bedding material, etc. It is imperative that the
control compartment, burners and circulating
airpassage ways of the appliance be keptclean.
S'assurer que le brùleur et le compartiment
des commandes sont propres. Voir les in-
structions d'installation et d'utilisation qui
accompagnent l'appareil.
Provide adequate clearances around air open-
ings and adequate accessibility clearance for
service and proper operation. Never obstruct
the front openings of the appliance.
Duetohightemperatures the appliance should
be located out of traffic and away from furni-
ture and draperies. Locate furniture and win-
dow coverings accordingly.
Nominal operating pressures for the manifold
side of the gas control system are: 3.5 inches
water column (0.87 kPa).
Donotusethese appliances if anyparthasbeen
under water. Immediately call a qualified, pro-
fessional service technician to inspect the ap-
pliance and to replace any parts of the control
system and any gas control which have been
under water.
WARNING: IMPROPER INSTALLATION,
ADJUSTMENT, ALTERATION, SERVICE
OR MAINTENANCE CAN CAUSE INJURY
ORPROPERTYDAMAGE. REFERTOTHIS
MANUAL. FOR ASSISTANCE OR ADDI-
TIONAL INFORMATION CONSULT A
QUALIFIED INSTALLER, SERVICE
AGENCY OR THE GAS SUPPLIER.
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3NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Piezo Ignitor Millivolt
Gas Valve
Drop-Down Control
Compartment Door
WARNING: FAILURE TO COMPLY WITH
THEINSTALLATIONANDOPERATINGIN-
STRUCTIONS PROVIDED IN THIS DOCU-
MENT WILL RESULT IN AN IMPROP-
ERLY INSTALLED AND OPERATING AP-
PLIANCE,VOIDINGITSWARRANTY. ANY
CHANGE TO THIS APPLIANCE AND/OR
ITS OPERATING CONTROLS IS DANGER-
OUS. IMPROPERINSTALLATIONORUSE
OF THIS APPLIANCE CAN CAUSE SERI-
OUS INJURY OR DEATH FROM FIRE,
BURNS, EXPLOSION OR CARBON MON-
OXIDE POISONING.
Carbon Monoxide Poisoning: Early signs of
carbon monoxide poisoning are similar to
the flu with headaches, dizziness and/or
nausea. If you have these signs, obtain fresh
air immediately. Turn off the gas supply to
the appliance and have it serviced by a
qualified professional, as it may not be op-
erating correctly.
WARNING: CHILDREN AND ADULTS
SHOULD BE ALERTED TO THE HAZARDS
OFHIGHSURFACETEMPERATURES.USE
CAUTION AROUND THE APPLIANCE TO
AVOID BURNS OR CLOTHING IGNITION.
YOUNG CHILDREN SHOULD BE CARE-
FULLY SUPERVISED WHEN THEY ARE IN
THE SAME ROOM AS THE APPLIANCE.
WARNING: DO NOT PLACE CLOTHING
OR OTHER FLAMMABLE MATERIALS
ON OR NEAR THIS APPLIANCE.
AVERTISSEMENT: SURVEILLER LES
ENFANTS. GARDER LES VÊTEMENTS,
LES MEUBLES, L'ESSENCE OU AUTRES
LIQUIDES ÀVAPEUR INFLAMMABLES
LOIN DE L'APPAREIL.
Figure 1
To light these appliances refer to the detailed
lightinginstructionsfoundin both English and
French on pages 10 and 11 of these instruc-
tions respectively. Millivolt appliance light-
ing instructions may also be found on the
pullout lighting instruction labels attached
to the gas control valve. Refer to
Figure 2 to
locate the appropriate location for the piezo
ignitor used with your appliance.
These appliances may be fitted with an op-
tional ON/OFF Rocker Switch for appliance
ON/OFF control. The optional ON/OFF Rocker
switch will be installed at either the right or the
left side of the Piezo Ignitor on the Piezo
Bracket, just beneath the valve. Once the pilot
is lighted, the ON/OFF rocker switch will con-
trol the appliance ON/OFF operation. To oper-
ate: Toggle the switch between its ON and OFF
positions.
If your appliance is equipped with an optional
remote wall switch or remote control kit and
the pilot is lit, the appliance main burner may
be turned on and off with the wall switch or
remote control.
OPERATION AND CARE OF YOUR
APPLIANCE
Applianceoperationmaybecontrolledthrough
a remotely located optional wall switch. Sepa-
rate switches may provide independent control
for the remote controlled fireplace operation
(optional equipment).
In lieu of remote or remote wall switch opera-
tion, the appliance must be operated directly
through the controls located on the front of the
valve located within the control compartment
located behind the hinged drop down panel
belowtheappliancefrontglassenclosurepanel,
Figure 1 .
Gas Controls and Control Compartment
Access
The gas controls can be found within the con-
trolcompartmentbehindthehingeddrop-down
controlcompartmentdoorcomprisingthelower
front face of the appliance below the front glass
enclosure panel.
Ne pas se servir de cet appareil s'il a étéplongé
dans l'eau, complètement ou en partie. Appeler
un technicien qualifiépour inspecter l'appareil et
remplacer toute partie du système de contrôle et
toute commande qui ont étéplongés dans l'leau.
Test gage connections are provided on the
frontof thegas control valve (identified OUT for
the manifold side and IN for inlet pressure.
Minimum inlet gas pressure to these appli-
ances is 5.0 inches water column (1.24 kPa)
for natural gas and 11 inches water column
(2.74 kPa) for propane for the purpose of input
adjustment.
Maximum inlet gas supply pressure to these appli-
ances is 10.5 inches water column (2.61 kPa) for
natural gas and 13.0 inches water column (3.23
kPa) for propane.
The appliance must be isolated from the gas
supply piping system (by closing its individual
manual shut-off valve) during any pressure test-
ing of the gas supply piping system at test
pressures equal to or less than ¹⁄₂ psig (3.5 kPa).
The appliance and its individual shut-off valve
must be disconnected from the gas supply
piping system during any pressure testing of
that system at pressures in excess of ¹⁄₂ psig
(3.5 kPa).
These appliances must not be connected to a
chimney or flue serving a separate solid fuel
burning appliance.
Any safety guard or screen removed for servic-
ing the appliance must be replaced prior to
operating the appliance.
To open the door, actuate the spring loaded,
magnetic catches securing the door by gently
depressing the outer top corners of the door
until the catches "pop" the door free, allowing it
to swing out and down to open. Once the
controlcompartmentdooris opened, complete
access to the gas control valve and its related
controls is attainable.
To ease door closure, depress the catches to
place them in their retracted position until they
stay there, then close the door.

4NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
WARNING: DO NOT USE ABRASIVE
CLEANERS. NEVER CLEAN THE GLASS
WHEN IT IS HOT.
Figure 2
Variable Flame Height Adjustment
1.These appliances are equipped with a vari-
able gas control valve. Flame height for these
models may be adjusted through a range be-
tween fixed low and high settings, alternately,
while the appliance is in operation. Adjust the
flame height as desired after lighting the appli-
ance by rotating the variable adjustment con-
trol knob located on the front of the valve (refer
to
Figure 2 ).
2. When lit for the first time, this appliance will
emit a slight odor for an hour or two. This is
due to the “burn-in”of internal paints and
lubricants used in the manufacturing process.
3. Keep lower control compartment clean by
vacuuming or brushing at least twice a year.
Morefrequent cleaning may be required due to
excessive lint from carpeting, bedding materi-
als, etc. It is important that control compart-
ments, burners and circulating air passage-
ways of the appliance be kept clean.
4. Always turn off gas to the pilot before
cleaning. Before re-lighting, refer to the light-
ing instructions in this manual. Instructions
are also found on a pullout lighting instruction
labels attached to the gas control valve.
5. Always keep the appliance area clear and
free from combustible materials, gasoline and
other flammable liquids.
6.Remember,theseapplianceshaveacontinu-
ous burning pilot flame. Exercise caution when
using products with combustible vapors.
7. Clean the front glass enclosure only when
necessary. Wipe surface with clean, damp-
ened, soft cloth. Follow with dry, soft towel as
desired. Take care not to scratch the glass
surface.
IMPORTANT: TURNOFFGASAND ANY ELEC-
TRICAL POWER BEFORE SERVICING THE
APPLIANCE.
CAUTION: DO NOT ATTEMPT TO TOUCH THE
FRONT ENCLOSURE GLASS WITH YOUR
HANDS WHILE THE FIREPLACE IS IN USE.
Maintenance
Front Glass Enclosure Panel, Removal
and Installation.
WARNING: NEVEROPERATE THE APPLI-
ANCE WITHOUT THE FRONT GLASS EN-
CLOSUREPANELINPLACEANDSECURE.
DO NOT OPERATE APPLIANCE WITH
FRONT GLASS CRACKED, BROKEN OR
MISSING. REPLACEMENT MUST BE
DONE BY A LICENSED OR QUALIFIED
SERVICE TECHNICIAN.
These are direct-vent appliances. They are
designed to operate only when the front glass
enclosure panel is installed. Generally the
front glass enclosure panel should not be
removed except to gain access to the compo-
nents within the firebox, and the appliance
may only be operated without the front glass
enclosure panel in place for very brief periods
of time during appliance checkout and adjust-
ment. Be sure that the flame appearance will
be diminished while the front glass enclosure
panel is removed.
WARNING: HANDLE THIS GLASS WITH
EXTREME CARE! TEMPERED GLASS IS
SUSCEPTIBLE TO DAMAGE –DO NOT
SCRATCH OR HANDLE ROUGHLY WHILE
REINSTALLING THE GLASS DOOR
FRAME.
Main Gas
Control Knob
Variable Flame
Height Adjustment
Piezo Ignitor
O
N
O
F
F
P
I
L
O
T
L
O
H
I
Manifold
Pressure Port Inlet
Pressure Port
Optional ON/OFF Rocker Switch
Location (One of Two Places)
Piezo Ignitor
The appliance and venting system should be
thoroughly inspected before initial use and at
least annually by a qualified service techni-
cian.However, morefrequent periodicinspec-
tions and cleanings should be performed by
the homeowner. Homeowner must contact a
qualified service technician at once if any
abnormal condition is observed.
Refer to the maintenance schedule for main-
tenance tasks, procedures, periodicity and
by whom they should be performed. Always
verify proper operation of the appliance af-
ter servicing.

5NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Periodically (After the Burning Season)
Maintenance Task Accomplishing Person Procedure
Cleaning Firebox Interior
Check Flame Patterns and Flame Height
Checking Vent System
Cleaning Front Glass Enclosure Panel
Homeowner
Homeowner
Homeowner
Homeowner
Carefully remove logs, Rockwool and volcanic
stone if used. Vacuum out interior of the
firebox. Clean firebox walls and log grate.
Replace logs, Rockwool and volcanic stone as
detailed in this manual.
Refer to
Figure 5 on page 7 and verify the
flame pattern and height displayed by the
appliance conforms to the picture. Flames
must not impinge on the logs.
Inspect the vent system at the top and at the
base (within the firebox) for signs of blockage
or obstruction. Look for any signs of disloca-
tion of the vent components.
Clean as necessary following the directions
provided in this manual. DO NOT TOUCH OR
ATTEMPT TO CLEAN GLASS WHILE HOT.
Maintenance Schedule
Annually (Before the onset of the Burning Season)
Maintenance Task Accomplishing Person Procedure
Inspecting/Cleaning Burner, Logs
and Controls
Check Flame Patterns and Flame Height
Inspecting/Cleaning Pilot and Burner
Checking Vent System
Appliance Checkout
Replacing Rockwool Ember Materials
Qualified Service Technician
Qualified Service Technician
Qualified Service Technician
Qualified Service Technician
Qualified Service Technician
Homeowner/Qualified Services Technician
Inspect valve and ensure it is properly operat-
ing. Check piping for leaks. Vacuum the
controlcompartment,fireplacelogsandburner
area.
Refer to
Figure 5 on page 7 and verify the
flame pattern and height displayed by the
appliance conforms to the picture. Flames
must not impinge on the logs.
Refer to
Figure 7 on page 7 .Remove any
surface build-up on pilot and burner assem-
bly. Wipe the pilot nozzles, ignitor/flame rod
and hood. Ensure the pilot flame engulfs the
flame sensor as shown.
Inspect the vent system at the top and at the
base (within the firebox) for signs of blockage
or obstruction. Look for any signs of disloca-
tion of the vent components.
Perform the appropriate appliance checkout
procedure detailed in this manual.
Remove old ember materials and vacuum the
screenedrockwool placement area. Place new
rockwool as described in this document.

6NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Figure 3
Figure 4
Refer to Figure 3 and remove the front glass
enclosure panel as follows:
1. Remove the top louver or radiant panel.
2. Open the hinged drop-down control com-
partment panel.
Adjustment
CAUTION: THE ADJUSTMENT ROD AND
NEARBY APPLIANCE SURFACES ARE HOT.
EXERCISECAUTIONTO AVOID INJURYWHILE
ADJUSTING FLAME APPEARANCE.
To adjust the flame, move the adjustment rod
(located in the lower control area) up or down
to increase or reduce the air shutter opening
respectively. Initially, always position the air
shutter to the factory setting (the minimum
air opening position) as shown in
Figure 4 .
This can be done by pulling the adjustment
rod all the way down. Allow the burner to
operate for at least 15 minutes. Observe the
flame continuously. If it appears weak or sooty
as previously described, adjust the air shutter
by pushing or pulling on the adjustment rod
until the flame appearance is as desired.
The adjustment rod and associated adjustable
air shutter is patented technology. Flame ad-
justments can be made quickly and accurately
to taste without the need of disassembling the
appliance and waiting for 30 minutes after
each adjustment.
WARNING: AIR SHUTTER ADJUSTMENT
SHOULD ONLY BE PERFORMED BY A
QUALIFIED PROFESSIONAL SERVICE
TECHNICIAN.
WARNING: NO NOT ATTEMPT TO SUB-
STITUTE THE MATERIALS USED ON THIS
DOOR, OR REPLACE CRACKED OR BRO-
KEN GLASS WITH ANY MATERIALS
OTHER THAN THOSE PROVIDED BY THE
APPLIANCE MANUFACTURER.
2. Position the door frame in front of the
fireboxopening and engagethe topflange over
the lip at the top of the firebox opening.
3. Swing the door down and back. Ensure the
gasket seats evenly as the door draws shut.
Engage the Vee-flange at the bottom of the
door with the latches and close the latches to
secure the door.
4.Reinstall the top louver or radiant panel.
Burner Adjustments
The following paragraphs address burner ad-
justment concerns and procedures.
Flame Appearance and Sooting
Proper flame appearance is a matter of taste.
Generally most people prefer the warm glow of
a yellow to orange flame. Appliances operated
with air shutter openings that are too large will
exhibit flames that are blue, transparent and
muchsmaller than designed. These weak, blue
and transparent flames are termed anemic. If
the air shutter opening is too small sooting
may develop.
Sooting is indicated by black puffs developing
at the tips of very long orange flames. Sooting
results in black deposits forming on the logs,
appliance inside surfaces and on exterior sur-
faces adjacent to the vent termination.
Sooting is caused by incomplete combustion in
theflames and alack of combustionair entering
the air shutter opening. To achieve a warm
yellowto orange flamewith an orangebody that
does not soot, the shutter opening must be
adjusted between these two extremes. No
smoke or soot should be present. Reposition
the logs if the flames impinge on any of them.
If the logs are properly positioned and sooting
conditions exist, the air shutter opening on the
mainburnertubeshouldbeadjusted.Normally,
the more elbows and horizontal runs there are
in the vent system, the greater the need for the
air shutter to be opened further.
THE GLASS DOOR OF THIS APPLIANCE MUST
ONLYBEREPLACED AS ACOMPLETE UNIT AS
PROVIDED BY THE MANUFACTURER. DO
NOT ATTEMPT TO REPLACE BROKEN,
CRACKED OR CHIPPED GLASS SEPARATELY.
3. Locate the two (2) latches at the top of the
controlcompartmentand disengagethemfrom
the door frame bottom Vee-flange, pulling
down on their handles to open them.
4. Swing the bottom of the door out and raise
it slightly to lift the top flange of the door frame
away from the appliance.
To install the front glass enclosure panel,
proceed as follows:
1. Retrieve the glass door frame. Visually
inspect the gasket on the backside of the
panel. The gasket surface must be clean, free
of irregularities and seated firmly.
ENSURE THAT THE FRONT GLASS PANEL IS IN
PLACE AND SEALED DURING ADJUSTMENT.
Propane models may exhibit a flame pattern
that may candle or appear stringy. If this is
problematic or persists as the appliance is
continually operated, adjust the air shutter
closedas describedinthepreviousparagraphs.
Operatetheappliance for aperiod of timeasthe
effect diminishes, ensuring that the appliance
does not develop sooty flames.
When satisfied that the appliance operates
properly, proceed to finish the installation.
Leave the control knob in “ON”position and
turn the remote switch “OFF.”Close the lower
control compartment door.
Latch
Latch
Glass Door
Firebox Floor
Bottom Vee-flange
Door Frame
Top Flange
Door Frame
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Air Shutter
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(minimum air opening position)

7NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Figure 5
WARNING: THE SIZE AND POSITION ON
THELOG SET WAS ENGINEERED TOGIVE
YOUR APPLIANCE A SAFE, RELIABLE
ANDATTRACTIVEFLAMEPATTERN. ANY
ATTEMPT TO USE A DIFFERENT LOG SET
INTHE FIREPLACE WILL VOID THE WAR-
RANTY AND WILL RESULT IN INCOM-
PLETE COMBUSTION, SOOTING, AND
POOR FLAME QUALITY.
WARNING: LOGS GET VERY HOT AND
WILL REMAIN HOT UP TO ONE HOUR
AFTER GAS SUPPLY IS TURNED OFF.
HANDLE ONLY WHEN LOGS ARE COOL.
TURN OFF ALL ELECTRICITY TO THE
APPLIANCE BEFORE YOU INSTALL
GRATE AND LOGS.
WARNING: THIS APPLIANCE IS NOT
MEANT TO BURN WOOD. ANY ATTEMPT
TO DO SO COULD CAUSE IRREPARABLE
DAMAGE TO YOUR APPLIANCE AND
PROVE HAZARDOUS TO YOUR SAFETY.
Log Placement
Figure 6
With proper care and maintenance, your appli-
ancewill providemanyyearsofenjoyment.Ifyou
should experience any problem, first refer to the
troubleshooting guide inthis manual. If problem
persists, contact your Lennox distributor.
Figure 7
Carefully position the ceramic fiber logs and
twigs over the burner according to the follow-
ing steps while referring to
Figure 5.
1. Set the rear log on the raised bracket at the
rearof the firebox, fitting the slot in the log over
the vertical bracket tab.
2. Position the front log with the pins for the
two side twigs in the up position, and the two
vertical burner tabs recessed into the two
notches at rear of the log. Check for recessing
of brackets into log notches (by touch) to verify
correct log placement.
3. Insert the alignment hole of the left twig over
the front log's left pin. Rotate the left twig until it
just touches the edge of the ember bed bracket.
4. Insert the alignment hole of the right twig
over the front log's right pin. Rotate the right
twig until it almost touches front panel glass.
Proper twig placement is critical to prevent soot-
ing. Twigs should be placed in the gaps between
the flame peaks and should be positioned so that
at no time they impinge the flames.
Glowing Ember Placement
Remove the replacement rockwool (Glowing
Embers)fromthe packaging andtearintonickel
size pieces
(Figure 6 ) .
Spread rockwool (nickel-sized pieces) on and
along the length of the burner screen. Do not
use more than is necessary. To many nickel-
sized pieces on the front burner section will
cause poor combustion.
When properly positioned, the rockwool will
unevenlycoverapproximately85%oftheburner
screen with no appreciable gaps or openings.
Appliance Checkout
The pilot flame should be steady, not lifting or
floating. Flame should be blue in color with
traces of orange at the outer edge.
The top ³⁄₈" (10 mm) at the pilot generator
(thermopile) and the top ¹⁄₈" min (tip) of the
quick drop out thermocouple should be en-
gulfed in the pilot flame. The flame should
project 1" (25 mm) beyond the hood at all three
ports
(Figure 7) .
³⁄₈" Min
(9 mm)
Hood
Pilot
Nozzels
Ignitor Rod
MILLIVOLT
Thermopile
Thermocouple
WIRING DIAGRAM
The wiring diagrams are provided here for
reference purposes only
(Figures 8 and 9 on
page 8)
. This information is also provided on
schematics found on pullout lighting instruc-
tion labels located within the control compart-
ment attached to the gas control valve.
CAUTION: LABEL ALL WIRES PRIOR TO
DISCONNECTION WHEN SERVICING CON-
TROLS. WIRING ERRORS CAN CAUSE IM-
PROPER AND DANGEROUS APPLIANCE OP-
ERATION.

8NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
WARRANTY
Your gas appliance is covered by a limited
twenty year warranty. You will find a copy of
the warranty accompanying this manual.
Please read the warranty to be familiar with its
coverage.
Retain this manual. File it with your other
documents for future reference.
REPLACEMENT PARTS
A complete parts list is found at the end of this
manual. Use only parts supplied from the
manufacturer.
Normally, all parts should be ordered through
your Lennox dealer. Parts will be shipped at
prevailing prices at time of order.
If you encounter any problems or have any
questions concerning the installation or appli-
cationofthissystem,pleasecontactyourdealer.
For the name of your nearest dealer contact:
LENNOX HEARTH PRODUCTS
1110 West Taft Avenue •Orange, CA
92865
PRODUCT REFERENCE INFORMATION
We recommend that you record the following important information about your fireplace. Please
contact your Lennox dealer for any questions or concerns. For the number of your nearest Lennox
dealer, please call 1-800-9-LENNOX
Your Fireplace's Model Number _______________________________________
Your Fireplace's Serial Number ________________________________________
The Date On Which Your Fireplace Was Installed __________________________
The Type of Gas Your Fireplace Uses ___________________________________
Your Dealer's Name_________________________________________________
When ordering repair parts, always give the
following information:
1. The model number of the appliance.
2. The serial number of the appliance.
3. The part number.
4. The description of the part.
5. The quantity required.
6. The installation date of the appliance.
Figure 8
Remote Control System (Standard) 26N04 RC
ACCESSORY COMPONENTS
Standard Remote Control System
(Model RC)
The Model RC (Standard) Remote Control
System, features a simplistic on/off control
function for the fireplace. This model includes
a hand-held transmitter, a remote receiver
with wall-mount coverplate and all hardware
requiredto install the unit. The remote receiver
can be wall or hearth mounted.
The transmitter has ON and OFF functions that
are activated by pressing either button on the
face of the transmitter. When a button on the
transmitter is pressed, a signal light illuminates
briefly to verify that a signal has been sent.
The Model RC is designed to operate with all
millivolt ignition systems, as well as electronic
ignition systems. It may be installed with use
for either natural or propane gas appliances.
The RC offers ease of installation and allows
you to execute on-off commands to the fire-
place effortlessly with one simple motion.
The Model RC comes complete with detailed
operating instructions.
SIGNAL
LIGHT
ON/OFF
BUTTONS
ON
INDICATOR
OFF
Figure 9
Figure 10
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Gas Control
Knob
Piezo Ignitor
Honeywell Variable Millivolt Valve
*TWI T WIRE TOGETHER TO OPERATE UNIT OLELY BY
MANIPULATING THE GA VALVE CONTROL KNOB; OR CONNECT
WIRE TO OPTIONAL ON/OFF WITCH OR WALL WITCH OR
THERMO TAT TO OPERATE UNIT.
chematic Representation Only
If any of the original wire as supplied must be replaced, it
must be replaced with Type AWM 105°C  18 GA. wire.
Hi/Lo Flame
Adjustment
Knob
*Optional ON/OFF WITCH
OR WALL WITCH
OR THERMO TAT
OR REMOTE CONTROL RECEIVER
Thermopile
BLOWER
G
W
120
VAC.
BK
Blower Wiring Diagram For Optional
FBK-100 AND FBK-200 KIT
Plug Blower Cord
into Bottom
Receptacle
of Outlet Box
*Blower speed control switch is provided in
FBK-200 blower kit.
Junction Box
Red Pigtail
Outlet Box Green
Ground crew
Break Tab Off on
Hot side of Outlet Box
White Wire To Opposite
ide of Outlet Box
(Neutral ide)
Hot ide of
Outlet Box Outlet Box
chematic Representation Only
*Optional Blower
Control witch
Black Pigtail
If any of the original wire as supplied must be replaced,
it must be replaced with Type AWM 105°C  18 GA. wire.
If any of the original wire as supplied must be replaced,
it must be replaced with Type AWM 105°C  18 GA. wire.
Junction Box
Factory Wired Field Wired
Blower Wiring Diagram for the Optional
FBK-250 Kits
OPT
BLOWER
G
W
120
VAC.
BK
Outlet Box Green
Ground crew
chematic Representation Only
White Wire
To Opposite
ide
Optional FBK-250
Module

9NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Deluxe Remote Control System
(Model RC-STAT)
The Model RC-STAT (Deluxe) Remote Control
System has all of the features of the standard
system along with an added easy to read LCD
screen which presents access to many en-
hancements, including; battery power level in-
dicator, timer, mode of operation, thermostatic
display including room temperature in either
metric of English units, flame indicator and
clock. Fully programmable, the Model RC-
STAT allows for virtual command over nearly
all operational and temperature variables, us-
ing the hand held remote control transmitter.
The Model RC-STAT (Deluxe) remote control
system is installed in the same manner as the
standard system, may be operated with elec-
tronic and millivolt systems with either natural
orpropane gas. The RC-STAT comes complete
with detailed operating instructions.
Remote Control System (Deluxe) 98K99 RC-STAT
Screen Panel Kit 98L04 HG33
Screen Panel Kit
An optional screen panel can be installed on the
3328 Series door. This screen panel is easy to
install. This kit can be retrofitted to previously
installed appliances. The screen panel kit can not
be used in conjunction with either of the arch
door kits or door frame kits.
Arch Door Kits
Brass Finish 98L05 ADK33C
Brushed Stainless Finish 98L62 ADK33CBS
Arch Door Kits
Arch door kits are available for the 3328 Series.
This kit is easy to install and does not require
hardware to attach it to the standard door
frame. This kit can be retrofitted to previously
installed 3328 Series appliances. The decora-
tive arch kits can not be used in conjunction
with the screen panel kit.
ACCESSORY COMPONENTS
Rocker Switch Kit 96K40 FBSK
Optional on Unit Rocker Switch
An optional rocker switch kit can be installed
directly on all 3328 Series appliances to pro-
vide for On and Off operation in lieu of a wall
switch. This kit is designed to install in the
lower control compartment out of view and is
perfect for use in high volume areas such as
lobbiesand modelhomes wherelimited access
tothe appliance On/Off switch is desirable. This
kit can be retrofitted to previously installed
appliances and may be temporarily installed in
place of other switch circuitry.
Brickade Liner Kits
Top Vent 98L02 BRK33T
Rear Vent 98L03 BRK33R
Brickade Liner Kit
One of the most beautiful enhancements you
can make to the 3328 Series is the addition of
brickade liners. The brickade liner kits include
tan stamped sheetmetal panels for the rear
and side walls of the firebox. The panels have
brick-like features in relief. To install the pan-
els, simply position them against the firebox
walls and screw them in place. These kits can
be retrofitted into previously installed appli-
ances. Purchase the BRK33T for top vented
appliances and the BRK33R for rear vented
appliances.
Decorative Volcanic Stone 96K65 LAVA
Decorative Volcanic Stone
The decorative volcanic stone, Model LAVA,
can be used to enhance the look of your appli-
ance. Decorative volcanic stone is standard
with this appliance. Order model LAVA for
replacementof stone when needed. Spread the
decorative volcanic stone evenly around the
bottom of the firebox.
Square Grate 98L01 GK33
Square Grate
The decorative grate provides the look of a
wrought iron log grate. The grate installs easily
in front of the log set with two screws. This kit
can be retrofitted to previously installed
MDT3328 and MDR3328 units.
Note: Some discoloration of the grate can be
expected with fireplace operation.
Touch-Up Paint Kit 90L74 TPK-C
Touch-Up Paint Kit
Repair of minor scratches and discoloration of
theappliance charcoalpainted surfacesmay be
accomplished with the touch-up paint kit.
SET
COVER
OPEN
LCD SCREEN
MODE
UP
DOWNTIMER/
TIME

10 NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
ACCESSORY COMPONENTS
Door Frame Kits
Brushed Stainless Finish 98L15 DTK33BS
Brass Finish 98L14 DTK33PB
Door Frame Kits
A decorative door frame kit is available for use
with these appliances. The DTK33 is designed
to attach directly to the front face of the appli-
ance at its extreme edges. The DTK33 provides
a picture frame finish for the appliance. The
door frame kit can be retrofitted onto previ-
ously installed appliances.
Louvers Kits
Decorative louvers are available for use with all
33280 Series direct vent louvered-face appli-
ances. These louvers are designed to replace
the standard charcoal louvers that are provided
with the appliance. The complete louver kits
include six (6) finished louvers. Two piece
louver kits include two narrow finished louvers
only. These kits provide a touch of elegance to
any 3328 Series appliance. This kit can be
retrofitted to previously installed appliances.
Complete Louver Kits
Brushed Stainless Finish 98L07 LVR33BS
Brass Finish 98L06 LVR33PB
Two Piece Louver Kits
Brushed Stainless Finish 98L08 2LVR33BS
Brass Finish 98L09 2LVR33PB
Brushed Stainless Finish Hood Kit 98L11 EB33BS
Brass Finish Hood Kit 98L10 EB33PB
Hood Kits
Attractive hoods are available in two styles to
be used on the 3328 Series appliances. These
hoods are designed to be fitted to the face of
the appliance. In addition to providing an aes-
thetically pleasing appearance to your ap-
pliance installation, the hood reduces heat
effects to decorative mantles and finish mate-
rials located above the fireplace opening. The
hoodkitreplacesthestandardhoodthatcomes
with these appliances and snaps into place.
These kits can be retrofitted to previously
installed appliances.
Radiant Panel Kit (Charcoal) 98L12 RAD33C
Radiant Panel Kits
Radiant panel kits are available to convert the
standard louvered appliances to radiant mod-
els more suited for finishing around the fire-
box opening with non-combustible materials
such as tile.
Door Trim Kit (Polished Brass Finish)
2 Piece Kit (Top & Bottom) 98L18 2DFK33PB
4 Piece Kit 98L22 4DFK33PB
Door Trim Kit (Brushed Stainless Finish)
2 Piece Kit (Top & Bottom) 98L19 2DFK33BS
4 Piece Kit 98L23 4DFK33BS
Door Frame Kit
A decorative door trim kit is available for use
with these appliances. The 2DFK33PB/BS is
designed to attach directly to the front face of
the appliance at the top and bottom. The
4DFK33PB/BS provides a picture frame finish
for the appliance 1 ³⁄₄" wide. The door trim kit
can be retrofitted onto previously installed
appliances.
(FBK-200 Models Only)
Forced Air Blower Kits
-Single Speed 80L84 FBK-100
-Variable Speed 80L85 FBK-200
-Unit Mountable 80L86 FBK-250
Forced Air Kit
The FBK-100 blower provides for a constant
velocity forced air circulation feature for your
appliance. The FBK-200 assembly with vari-
able speed wall switch provides a forced air
circulationfeature for your appliance. The FBK-
250 comes complete with a unit mountable
switch operating system.

11NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
TROUBLESHOOTING THE MILLIVOLT GAS CONTROL SYSTEM
1. Spark ignitor will not light
pilot after repeated
triggering of ignitor button.
2. Pilot will not stay lit after
carefully following the
lighting instructions.
3. Pilot burning, no gas to
burner, Valve knob “ON,”
Wall Switch “ON.”
4. Frequent pilot/burner outage
problem.
CORRECTIVE ACTIONSYMPTOM
A. Defective ignitor
(no spark at electrode).
B. Defective or misaligned electrode
at pilot (spark at electrode).
C. Gas supply pressure errant.
D. Pilot orifice plugged.
A. Defective pilot generator
(thermocouple).
A. Wall switch or wires defective.
B. Thermopile may not be generating
sufficient millivoltage.
C. Plugged burner orifice.
A. Pilot flame may be too low or
blowing (high) causing the pilot/
valve safety to drop out.
Check for spark at electrode and pilot; if no spark and
electrode wire is properly connected, replace ignitor.
Using a match, light pilot. If pilot lights, turn off pilot and
trigger the ignitor button again. If pilot lights, an improper
gas mixture caused the bad lighting and a longer purge
period is recommended. If pilot will not light –check gap at
electrode and pilot –should be ¹⁄₈" to have a strong spark. If
gap measures ¹⁄₈", replace pilot
(Figure 7 on page 7) .
Check inlet gas pressure. It should be within the limits as
marked on the rating plate.
Clean or replace pilot orifice.
Check pilot flame, it must impinge on thermocouple
(Fig-
ure 7 on page 7)
. Clean and/or adjust pilot for maximum
flame impingement on thermocouple. Ensure that the con-
nection between the valve and thermocouple are tight and
secure.
Check wall switch and wires for proper connections. Jumper
wire across terminals at wall switch, if burner comes on,
replace defective wall switch. If okay, jumper wires across
wallswitchwiresat valve, ifburnercomeson,wiresarefaulty
or connections are bad.
Check thermopile with millivolt meter. Take reading at ther-
mopile terminals of gas valve. Should read 325 millivolts
minimum with optional wall switch “OFF.”Replace faulty
thermopile if reading is below specified minimum.
Check burner orifice for stoppage and remove.
Clean and/or adjust pilot flame for maximum flame impinge-
ment on thermocouple
(Figure 7 on page 7) .
POSSIBLE CAUSES
Note: Before troubleshooting the gas control system, be sure external gas shut off valve (located at gas supply inlet) is in
the “ON”position.
Important: Valve system troubleshooting should only be accomplished by a qualified service technician.

12 NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
LIGHTING INSTRUCTIONS –MILLIVOLT
WARNING: IF YOU DO NOT FOLLOW THESE INSTRUCTIONS EXACTLY, A FIRE OR EXPLOSION
MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE.
FOR YOUR SAFETY READ BEFORE LIGHTING
•Do not use any phone in your building.
•Immediately call your gas supplier from a neighbor’s phone.
•If your gas supplier cannot be reached, call the fire depart-
ment.
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,
do not try to repair it, call a qualified service technician.
Force or attempted repair may result in a fire or an explo-
sion.
D. 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.
A. This appliance has a pilot which must be lighted with a piezo
ignitor. When lighting the pilot, follow these instructions
exactly.
B. BEFORE OPERATING smell all 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
•Extinguish any open flame.
•Open windows.
•Do not light any appliance.
•Do not touch any electrical switches.
TO TURN OFF GAS TO APPLIANCE
1. Turn remote wall switch “OFF.”The pilot will remain lit for
normal service.
2. For complete shutdown, turn remote wall switch to “OFF.”
3. Access the lower control compartment.
4. Depress gas control knob slightly and turn clockwise
to “OFF.”Do not force.
5. Close lower control compartment.
LIGHTING INSTRUCTIONS
1. STOP! Read the safety information above on this page.
2. Access the lower control compartment.
3. Turn remote wall switch to “OFF.”
4. Verify main line shut-off valve is open.
5. Push in gas control knob slightly and turn clockwise
to “OFF.”
Note: Knob cannot be turned from “PILOT”to “OFF”
unless the knob is pushed in slightly. Do not force.
6. Wait five (5) minutes to clear out any gas. If you then smell
gas, STOP! Follow “B”in the safety information above on
this page. If you do not smell gas, go to the next step.
7. Push in gas control knob slightly and turn counterclockwise
to “PILOT.”
8. Push in control knob all the way and hold in. Immediately
light the pilot by triggering the spark ignitor (pushing the
button) until pilot lights. Continue to hold the control knob
in for about 1 ¹⁄₂ minutes 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 8.
•If knob does not pop up when
released, stop and immediately call
your service technician or gas
supplier.
•If pilot will not stay lit after several
tries, turn the control knob to
“OFF”and call your service
technician or gas supplier.
9. Turn gas control knob counterclockwise to “ON.”
10. Close lower control compartment.
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13NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
INSTRUCTIONS D’ALLUMAGE –MILLIVOLT
INSTRUCTIONS D'ALLUMAGE
8. Enfoncez le bouton de réglage jusqu’au fond et gardez-le
enfoncé. Allumez immédiatement la veilleuse en déclenchant
l’allume-gaz àétincelle (en poussant le bouton) jusqu’à ce que la
veilleuse s’enflamme. Continuez de tenir le bouton de réglage
enfoncépendant environ 90 secondes après l’allumage de la
veilleuse. Relâchez le bouton et il sortira subitement. La veilleuse
devrait rester allumée. Si elle s’éteint, répétez les étapes 5 à8
inclusivement.
•Si le bouton ne sort pas automatiquement après avoir été
relâché, arrêtez immédiatement et
téléphonez àvotre technicien de service
ou àvotre fournisseur de gaz.
•Si la veilleuse refuse de rester allumée
après plusieurs tentatives, tournez le
bouton de réglage jusqu’à sa position
d’arrêt “OFF”et téléphonez àvotre
technicien de service ou àvotre
fournisseur de gaz.
9. Tournez le bouton de réglage du gaz en sens inverse des aiguilles
d’une montre jusqu’à sa position de marche “ON”.
10. Fermez le compartiment de contrôle du bas.
11. Au besoin, rebrancher l’appareil au courant électrique et remettre
l’interrupteur du brûleur principal àla position “ON”ou régler le
thermostat àla température désirée.
12. Si l’appareil ne fonctionne pas, suivre les instructions intitulées
“Pour fermer le gaz qui alimente l’appareil”et appeler un
technicien ou le fournisseur de gaz.
AVERTISSEMENT : SI VOUS NE SUIVEZ PAS CES INSTRUCTIONS ÀLA LETTRE, IL POURRAIT S’EN SUIVRE UN INCENDIE OU UNE
EXPLOSION CAUSANT DES DOMMAGES MATÉRIELS, DES BLESSURES CORPORELLES OU MÊME DES PERTES DE VIE.
POUR VOTRE SÉCURITÉ, LISEZ CES INSTRUCTIONS AVANT L’ALLUMAGE
A. Cet appareil est muni d’une veilleuse qui doit être allumée avec un
allumeur piézo-électrique. Lorsque vous allumez la veilleuse, suivre
exactement ces instructions.
B. AVANT L’ALLUMAGE: Assurez-vous que vous ne détectez aucune
odeur de gaz autour de l’apareil ainsi que près du sol; certains gaz,
étant plus lourds que l’air, descendent au niveau du sol.
VOICI CE QUE VOUS DEVEZ FAIRE SI VOUS DÉCELEZ UNE ODEUR
DE GAZ:
•Éteignez toute flamme visible.
•Ouvrez les fenêtres.
•N’allumez aucun appareil.
•Ne touchez àaucun commutateur électrique.
•Ne vous servez d’aucun téléphone dans votre édifice.
•Appelez immédiatement votre compagnie de gaz en utilisant le
téléphone du voisin.
•S’il vous est impossible de contacter votre compagnie de gaz,
appelez le service des incendies.
C. N’utilisez que votre main pour manipuler le bouton de réglage du
gaz. N’utilisez jamais d’outils. Si le bouton refuse de tourner ou de
bouger, n’essayez pas de le réparer. Communiquez immédiatement
avec un technicien de service qualifié. Toute tentative pour le
forcer ou le réparer, risquerait de provoquer un incendie ou une
explosion.
D. Ne vous servez pas de cet appareil si l’un de ses éléments a été
immergédans l’eau. Appelez immédiatement un technicien
compétent pour faire inspecter l’appareil et remplacer toute pièce
du système de réglage ou commande du gaz qui a étésous l’eau.
1. ARRÊTEZ! Lisez les consignes de sécuritéau verso de cette
plaque.
2. Ouvrez le compartiment de contrôle du bas.
3. Tournez l’interrupteur mural àla position d’arrêt “OFF”.
4. Assurez-vous que la soupape d’arrêt de la canalisation principale
est ouverte.
5. Enfoncez légèrement le bouton de réglage du gaz et tournez-le dans
le sens des aiguilles d’une montre jusqu’à la position
d’arrêt “OFF”.
Remarque: Il est impossible de tourner le bouton de “PILOT”à“OFF”à
moins qu’il ne soit légèrement enfoncé. Ne le forcez pas.
6. Attendez cinq (5) minutes pour l’evacuation du gaz. Si vous décelez
une odeur de gaz, ARRÊTEZ ! Retournez au point “B”des
consignes de sécuritéau verso de cette plaque. Si vous ne
remarquez aucune odeur de gaz, passez àl’étape suivante.
7. Enfoncez légèrement le bouton de réglage du gaz et tournez-le en
sens inverse des aiguilles d’une montre jusqu’à la position de
veilleuse “PILOT”.
1. Tournez l’interrupteur mural àla position d’arrêt “OFF”. La veilleuse
restera allumée jusqu’au retour du service normal.
2. Pour une fermeture complète, tournez l’interrupteur mural àla
position d’arrêt “OFF”.
3. Ouvrez le compartiment de contrôle du bas.
POUR FERMER LE GAZ QUI ALIMENTE L’APPAREIL
4. Enfoncez légèrement le bouton de réglage du gaz et tournez-le dans
le sens des aiguilles d’une montre jusqu’à la position
d’arrêt “OFF”. Ne forcez pas le bouton.
5. Fermez le compartiment de contrôle du bas.
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14 NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
REPLACEMENT PARTS LIST
Natural Propane
No. DESCRIPTION Part No. Qty. Part No. Qty.
Gas Fireplace Assembly ––––
1. Hood LB-91941F 1 LB-91941F 1
2. Louver LB-92442F 5 LB-92442F 5
3. Louver, (Base) LB-92447F 1 LB-92447F 1
4. Enclosure, Glass Front (Complete) LB-92398H 1 LB-92398H 1
5. Nameplate (Brand) 12L1501 1 12L1501 1
6. Latch 69L2101 2 69L2101 2
7. Catch, Door, Magnetic 69L3101 2 69L3101 2
8. Log Set (Complete) 67L3901 1 67L3901 1
9. Burner Assembly 74L8201 1 74L8201 1
10. Burner, Bracket LB-92357 2 LB-92357 2
11. Burner, Bracket LB-92619 1 LB-92619 1
12. Ember Screen LB-92712B 1 LB-92712B 1
13. Orifice, Main Burner 37L7001 1 99K7901 1
14. Bag of Rockwool 88L53 1 88L53 1
15. Gas Flex Line Connector 43K3301 1 43K3301 1
Natural Propane
No. DESCRIPTION Part No. Qty. Part No. Qty.
20. Gas Valve - Honeywell 82L8601 1 82L8701 1
21. Pilot Assembly 69L1701 1 69L1801 1
22. Pilot Generator 60J7901 1 60J7901 1
23. Thermocouple 74L5701 1 74L5701 1
24. Pilot Tube 74L5601 1 74L5601 1
25. Electrode And Cable 74L5801 1 74L5801 1
26. Piezo Ignitor 24M8901 1 24M8901 1
GAS CONTROLS

15NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
REPLACEMENT PARTS
9
4
7
1
2
5
20
14
12
6
22
21
23
3
25
24
2
8
11
10
13
26
15

16 NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Printed in U.S.A. © 2002 by LENNOX
P/N 504,140M REV. B 01/2002
LENNOX reserves the right to make changes at any time, without notice, in design,
materials, specifications, prices and also to discontinue colors, styles and products.
Consult your local distributor for fireplace code information.
1110 West Taft Avenue •Orange, CA 92865