Lennox Hearth Products Merit LMBV-42REN User manual

1
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
HOMEOWNER'S CARE AND
OPERATION INSTRUCTIONS
42" B-VENTED GAS APPLIANCES
P/N 875,034M REV. A 02/2007
Millivolt Models Electronic Models
LMBV-42RMN LMBV-42REN
LMBV-42RMP
MODELS
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.
POURVOTRESÉCURITÉ: Nepasentreposerniutiliser
d'essencenid'autrevapeursouliquidesinflammables
dans le voisinage de cet appareil ou de tout autre
appareil.
POUR VOTRE SÉCURITÉ: Que faire si vous sentez une
odiur 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, agence de service ou le fournisseur de gaz.
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
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.
WARNING:IFTHEINFORMATIONINTHISMANUAL
IS NOT FOLLOWED EXACTLY, A FIRE OR EXPLO-
SION MAY RESULT CAUSING PROPERTY DAM-
AGE, PERSONAL INJURY OR LOSS OF LIFE.
MERIT®SERIES
WARNINGS
• Hot! Do not touch! The glass and
surfaces of this appliance will be hot
during operation and will retain heat
for a while after shutting off the appli-
ance. Severe burns may result.
• Carefully supervise children in the
same room as appliance.
• If small children are present in the home, it is
recommended that this appliance be fitted with
a screen door or screen panel kit. See
Page 17
for ordering information.
WH Report No. 3106807

2NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Gas Orifice
Type Size Elevation
0 - 4500'
(0 - 1370 m)
0 - 4500'
(0 - 1370 m)
Natural
Propane (0.065)
#37
(0.104)
TABLE OF CONTENTS
Introduction ..................................... page 2
General Information......................... page 2
Operation/Care of Your Appliance.... page 3
Damper & Outside Air Controls ....... page 4
Manual Limit Switch ........................ page 5
Maintenance .................................... page 6
Millivolt Appliance Checkout............ page 6
Electronic Appliance Checkout......... page 6
Maintenance Schedule..................... page 7
Log and Rockwool Placement ......... page 8
Wiring Diagrams.............................. page 9
Lighting Instructions – Millivolt ....... page 10
Lighting Instructions – Electronic .... page 12
Troubleshooting Guide – Millivolt ..... page 14
Troubleshooting Guide – Electronic .. page 15
Warranty.......................................... page 16
Product Reference Information ....... page 16
Replacement Parts .......................... page 16
Accessory Components ................... page 17
Replacement Parts List ..................... page 18
These appliances are designed to operate on
natural or propane gas only. The use of
other fuels or combination of fuels will de-
grade the performance of this system and
may be dangerous.
Input of appliance is 30,000 BTU/HR.
CONGRATULATIONS!
In selecting this LENNOX B-vented 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 millivolt appliances are designed to oper-
ateon either naturalor propanegas. A millivolt
gas control valve with piezo ignition system
provides safe, efficient operation.
The electronic appliances are designed to op-
erate on either natural or propane gas. An
electronic intermittent ignition system pro-
videssafe, efficient operation.External electri-
cal power is required to operate these units.
GENERAL INFORMATION
Note: Installation and repair should be per-
formedby aqualified service 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 waysof theappliancebekeptclean.
S'assurer que le brùleur et le compartiment
des commandes sont propres. Voir les in-
structions d'installation et d'utilisation qui
accompagnent l'apareil.
Provide adequate clearances around air open-
ings and adequate accessibility clearance for
service and proper operation. Never obstruct
the front openings of the appliance.
Duetohightemperaturestheappliance 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) for natural gas mod-
els and 10 inches water column (2.49 kPa) for
propane gas models.
These appliances comply with National Safety
Standards and are tested and listed by War-
nock Hersey (Report No. 3106807) to ANSI
Z21.50 - latest edition (in Canada, CSA 2.22 -
latestedition),andCAN/CGA-2.17-M91inboth
USA and Canada, as vented gas fireplaces.
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.
WARNING: THESE FIREPLACES ARE
VENTED DECORATIVE GAS APPLI-
ANCES. DONOTBURNWOODOROTHER
MATERIAL IN THESE APPLIANCES.
WARNING: IMPROPERINSTALLATION,
ADJUSTMENT, 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: ELECTRONIC MODELS OF
THESE APPLIANCES ARE EQUIPPED
WITH A THREE-PRONG (GROUNDING)
PLUG UTILIZED IN CONNECTING THE
ELECTRONIC COMPONENTS TO THE
JUNCTION BOX IN THE LOWER COM-
PARTMENT. THIS GROUNDING PLUG
PROVIDES PROTECTION AGAINST
SHOCK HAZARD AND SHOULD BE
PLUGGED DIRECTLY INTO THE PROP-
ERLY GROUNDED THREE-PRONG RE-
CEPTACLE. DO NOT CUT OR REMOVE
THE GROUNDING PRONG FROM THE
PLUG.

3
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Carbon Monoxide Poisoning: Early signs of
carbon monoxide poisoning are similar to
thefluwithheadaches,dizzinessand/ornau-
sea. 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 operating
correctly.
OPERATION AND CARE OF YOUR
APPLIANCE
1. Appliance operation may be controlled
througharemotelylocatedoptionalwallswitch.
Separate switches may provide independent
control for the remote controlled fireplace op-
eration (optional equipment).
Figure 1
Operation of millivolt and electronic gas con-
trol systems are different. Before lighting and
operatingyourappliancedetermineifyouhave
a millivolt or electronic appliance. Refer to
Figure 1 to access the gas control compart-
ment below the lower refractory panel. Milli-
voltapplianceswillbe fittedwithoneofthe two
gas control valves shown in Figure 2. Appli-
ances with electronic systems will be fitted
with the electronic valve shown in Figure 3.
Familiarize yourself with the differing controls
for the valve your appliance uses.
To light millivolt appliances refer to the de-
tailed lighting instructions found in both En-
glish and French on pages 10 and 11 of these
instructions respectively. Millivolt and elec-
tronic appliance lighting instructions may
also be found on the pull out labels attached
to the gas control valve located within the
gas control compartment. Refer to Figure 2
to locate the appropriate location for the spark
ignitor used with your appliance.
If your appliance is equipped with an optional
remote wall switch or remote control kit the
appliance main burner may be turned on and
off with the wall switch or remote control. If
the appliance is not equipped with a wall or
remotecontrol,themainburnermustbeturned
off and on with the gas control knob. Turn the
knob counter-clockwise from the PILOT posi-
tion to ON to light the main burner, and clock-
wise from ON to PILOT to turn off the main
burner.
WARNING: FAILURE TO COMPLY
WITH THE INSTALLATION AND OPER-
ATING INSTRUCTIONS PROVIDED IN
THIS DOCUMENT WILL RESULT IN AN
IMPROPERLY INSTALLED AND OP-
ERATING APPLIANCE, VOIDING ITS
WARRANTY. ANY CHANGE TO THIS
APPLIANCE AND/OR ITS OPERATING
CONTROLS IS DANGEROUS. IM-
PROPER INSTALLATION OR USE OF
THIS APPLIANCE CAN CAUSE SERI-
OUS INJURY OR DEATH FORM FIRE,
BURNS, EXPLOSION OR CARBON
MONOXIDE POISONING.
WARNING: B-VENT APPLIANCES ARE
NOT DESIGNED TO OPERATE IN NEGA-
TIVELY PRESSURED ENVIRONMENTS
(PRESSUREWITHINTHEHOMEISLESS
THAN PRESSURES OUTSIDE). SIGNIFI-
CANT NEGATIVELY PRESSURED ENVI-
RONMENTS CAUSED BY WEATHER,
HOME DESIGN, OR OTHER DEVICES
MAYIMPACTTHEOPERATIONOFTHESE
APPLIANCES. NEGATIVE PRESSURES
MAYRESULTINPOORFLAMEAPPEAR-
ANCE, SOOTING, DAMAGE TO PROP-
ERTY AND/OR SEVERE PERSONAL IN-
JURY. DO NOT OPERATE THESE APPLI-
ANCES IN NEGATIVELY PRESSURED
ENVIRONMENTS.
WARNING: CHILDREN AND ADULTS
SHOULD BE ALERTED TO THE HAZ-
ARDS OF HIGH SURFACE TEMPERA-
TURES. USE CAUTION AROUND THE
APPLIANCE TO AVOID BURNS OR
CLOTHING IGNITION. YOUNG CHIL-
DRENSHOULDBECAREFULLY SUPER-
VISED 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,
LESMEUBLES, L'ESSENCE OU AUTRES
LIQUIDES À VAPEUR INFLAMMABLES
LOIN DE L'APPAREIL.
Refractory
Access Panel
SIT Valve Shown
Gas Controls
on Valve
Piezo
Ignitor
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
under the removable refractory access panel,
Figure 1.
Do not use these appliances if any part has
beenunder water.Immediately call aqualified,
professional service technician to inspect the
appliance and to replace any parts of the
control system and any gas control which
have been under water.
Ne pas se servir de cet appareil s'il a été
plongédansl'eau,complètement ouenpartie.
Appeler un technicien qualifiépour inspecter
l'appareiletremplacertoute partiedusystème
de contrôle et toute commande qui ont été
plongés dans l'leau.
Test gage connections are provided on the
front of the millivolt gas control valve (identi-
fied E for the inlet and A for the manifold side.
See Figure 2 ). A ¹⁄₈" NPT test gage connection
is provided at the inlet and manifold side of
theelectronic gas controlvalve ( SeeFigure 3 ).
Minimuminlet gaspressure tothe applianceis
4.5inches water column (1.24kPa) for natural
gasand 11 inches watercolumn (2.74 kPa) for
propane for the purpose of input adjustment.
Maximum inlet gas supply pressure to the
appliance is 10.5 inches water column (2.62
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 indi-
vidual manual shut-off valve) during any
pressure testing of the gas supply piping
systemat test pressuresequal to or lessthan
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.

4NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
CAUTION: DO NOT ATTEMPT TO TOUCH THE
DOORSWITHYOURHANDSWHILETHEFIRE-
PLACE IS IN USE. ALWAYS USE DOOR
HANDLES. DOORS WILL BECOME VERY HOT
WHEN FIREPLACE IS IN USE.
CAUTION:NEVEROPERATETHISAPPLIANCE
WITHABROKENORDAMAGEDGLASSDOOR.
REMOVE OR REPLACE ANY BROKEN GLASS
DOOR BEFORE OPERATING.
Figure 3
Figure 2
3. Keep lower control compartment clean by
vacuuming or brushing at least twice a year.
More frequent 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 and clear of
obstruction of ventilating and combustion air.
4. Always turn off gas to the pilot (millivolt
appliances) before cleaning. Before re-light-
ing, refer to the lighting instructions in this
manual. Instructions are also found on a pull-
out panel located on the floor of the appliance.
5. Always keep the appliance area clear and
free from combustible materials, gasoline and
other flammable liquids.
6. Remember, Millivolt appliances have a con-
tinuous burning pilot flame. Exercise caution
when using products with combustible vapors.
7. Clean the optional glass doors 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.
Honeywell Electronic
Gas Valve
Figure 4
ON/OFF Switch
Electronic
Gas Control
Valve
OFF
I
PSI
ON
CONTROL
IGNITE
Manifold Presssure Port
Inlet
Pressure
Port
Fully Open or
Fully Closed
To light electronic appliances refer to the de-
tailed lighting instructions found in both En-
glish and French on pages 12 and 13 of these
instructions respectively. Millivolt and elec-
tronicappliancelightinginstructionsmayalso
be found on the pull out labels attached to the
gas control valve located within the gas con-
trol compartment.
If your appliance is equipped with an optional
remote wall switch or remote control kit the
appliancemain burner maybe turner onand off
with the wall switch or remote control. If the
appliance is not equipped with a wall switch or
remotecontrol,themainburnermustbeturned
off and on with the gas control switch. Toggle
the switch from ON to OFF to operate the main
burner from ON to OFF.
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.
DAMPER AND COMBUSTION AIR CONTROLS
This appliance is fitted with a manually con-
trolled vent damper. The vent damper should
be closed when the appliance is not in use to
preventcoldairfromenteringthehomethrough
the venting system. The damper is controlled
through the use of a control lever located
within the appliance opening at the top center
in front of the firebox lintel (
see Figure 5 ).
WARNING: DO NOT USE ABRASIVE
CLEANERS. NEVER CLEAN THE GLASS
WHEN IT IS HOT.
WARNING: FIREPLACES EQUIPPED
WITH OPTIONAL ACCESSORY DOORS
SHOULDBEOPERATEDONLYWITHTHE
DOORSFULLYOPENORFULLYCLOSED
( FIGURE 4 ). THIS APPLIANCE MAY
ONLY BE FITTED WITH DOORS CERTI-
FIED FOR USE WITH THE APPLIANCE.
AVERTISSEMENT: POUR UTILISATION
UNIQUEMENT AVEC LES PORTES EN
VERRE CERTIFIÊES AVEC L'APPAREIL.
EA
TPTH TP TH
P
I
L
O
T
P
I
L
O
T
O
N
it
O
F
F
SIT Millivolt Valve Gas Control
Knob
Piezo
Ignitor
WARNING: DO NOT STRIKE OR SLAM
SHUT OPTIONAL GLASS DOORS.
WARNING: REPLACE ANY SAFETY
SCREEN OR GUARD REMOVED FOR
SERVICING AN APPLIANCE PRIOR TO
OPERATING THE APPLIANCE.
WARNING: DO NOT ATTEMPT TO RE-
PAIR BROKEN GLASS COMPONENTS.
REPLACE ANY BROKEN DOORS ONLY
WITH COMPLETE DOOR KITS, OB-
TAINED FROM LENNOX. REMOVE ANY
BROKEN GLASS PIECES BY VACUUM-
ING THEM OUT COMPLETELY.

5
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Figure 5
Figure 6
Pull the actuator forward to open the combus-
tionairdoor,and pushitbacktoclose. To "lock"
the combustion air door closed, ensure the
actuator is pushed all the way back, then push
the end of the actuators to the right until the
stepintheactuatormovesbehind theappliance
front face within the slotted opening.
MANUALLY-RESET BLOCKED FLUE SAFETY
SWITCH
This appliance is equipped with a manually-
reset blocked flue safety switch. Refer to
Figure 7 for its location. If during appliance
operation, the flame goes out (independently
of the burner on/off wall switch), it may be due
to the operation of this safety limit switch.
First allow the appliance to cool, then reset
the safety switch by pushing the red reset
button on the back of the switch.
CAUTION: THE ELECTRONIC APPLIANCE
SHOULD BE TURNED OFF BEFORE REMOV-
ING THE LIMIT SWITCH.
To access the safety limit switch reset button,
remove the screen rod and screen from the
rightsideofthefireplace. Unscrewtwoscrews
and remove the limit switch with low voltage
wires attached. Push the reset button, then
reinstall the limit switch. Reinstall the screen
and rod. At this time turn the electronic
appliance back on.
The appliance should then relight and remain
lit. If this does not occur, turn off the appli-
ance and call a qualified service technician.
The control lever snaps into place at either
extreme of its range of motion. When locked
in position all the way to the right, the damper
is open. When locked in position all the way to
the left, the damper is closed.
The damper lever actuates a switch, (see wir-
ing diagram) which will prevent the appliance
main burner from lighting unless the damper
is locked open. The appliance flue damper
must always remain open when operating.
Remove Locking Screw
and “Pop” Actuator to the
Left Before Initial Use
Combustion Air
Actuator
Pull Forward to Open,
Push Back to Close
Many appliances are equipped when installed
withan outside (make-up)air vent systemthat
is designed to provide the appliance with out-
side make-up air for combustion when in
operation. The actuator for the outside air
system is standard on all appliances but must
not be operated if the complete system is not
installed. Refer to Figure 6 .When the com-
plete outside air vent system is installed, the
installerwillremovetheactuatorlockingscrew.
If your screw is not removed and you have
reason to believe that you have a complete
outside air system, contact your distributor to
have your appliance inspected for the pres-
ence of the complete system.
DO NOT assume that you have this system in
place because you have an actuating lever
present on your appliance front face.
Figure 7
Damper
Closed Damper
Open
Lintel
Outside Air
Actuator
Limit Switch Screws
Manual
Reset
Limit
Switch
Screen
Rod
Lintel Extension Right Side Refractory Panel
Screen
To provide outside combustion air to your
appliance while it is in operation, locate the
combustion air actuator along the right side of
the appliance opening ( Figure 5 ).
To operate, push the end of the actuator to the
left as shown in
Figure 6 , until it "pops" free of
its "locked" position.
WARNING: DAMPERMUST BE IN OPEN
POSITION WHEN APPLIANCE MAIN
BURNER IS OPERATING.
AVERTISSEMENT: LE REGISTRE DOIT
ÊTRE EN POSITION OUVERTE LORSQUE
LE OU LES BRULEURS PRINCIPAUX DE
L'APPEREIL FONCTIONNMENT.
WARNING: DONOTOPERATETHECOM-
BUSTION AIR ACTUATOR UNLESS A
COMPLETE OUTSIDE AIR VENT SYS-
TEMHAS BEEN INSTALLED WITH YOUR
APPLIANCE.

6NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Figure 9
Figure 8
Maintenance
The appliance and venting system should be
thoroughly inspected before initial use and at
least annually by a qualified service techni-
cian. Propermaintenanceand usewill require
more frequent, less extensive inspections and
servicing by the homeowner.
Generally, annual inspections should be per-
formedbyaqualifiedservicetechnician. More
frequent periodic inspections and cleanings
should be performed by the homeowner. Any
discrepancies discovered by the homeowner
should result in a call to a qualified service
technician to effect the repair or correction.
Referto themaintenance schedule formainte-
nance tasks, procedures, periodicity and by
whom they should be performed.
IMPORTANT: TURN OFF GAS AND ANY
ELECTRICAL POWER BEFORE SERVICING
THE APPLIANCE.
Millivolt 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" (9 mm) at the pilot generator
(thermopile) should be engulfed in the pilot
flame. The flame should project 1" (25 mm)
beyond the hood at all three ports (Figure 9 ).
Electronic Appliance Checkout
Light the burner, refer to the Lightilng Instruc-
tions in this manual. Ensure the ignitor lights
the pilot. The pilot flame should engulf the
flame rod as shown in Figure 9.
With proper care and maintenance, your ap-
pliance will provide many years of enjoyment.
If you should experience any problem, first
refer to the trouble shooting guide in this
manual. If problem persists, contact your
Superior distributor.
³⁄₈" Min
(9 mm)
Hood
Pilot
Nozzels
Ignitor Rod
Proper Flame
Adjustment
Hot Surface
Igniter
Flame Rod
Ground
Electrode
3/8 To 1/2 Inch
(9 mm to 13 mm)
Pilot
Nozzle
MILLIVOLT
ELECTRONIC

7
NOTE: 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 Optional Glass Doors
Homeowner
Homeowner
Homeowner
Homeowner
Carefullyremove logs, Rockwool andvolcanic
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 8 and verify the flame pattern
and height displayed by the appliance con-
forms to the picture. Flames must not im-
pinge 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 DOORS WHILE THEY
ARE 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
control compartment, fireplace logs and
burner area.
Refer to
Figure 8 and verify the flame pattern
and height displayed by the appliance con-
forms to the picture. Flames must not im-
pinge on the logs.
Refer to Figure 9 . Remove any surface build-
up on pilot and burner assembly. Wipe the
pilot nozzles, ignitor/flame rod and hood.
Ensure the pilot flame engulfs the flame sen-
sor as shown.
Inspect the vent system at the top and at the
base(within the firebox) forsigns 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 placementarea. Place new
rockwool as described in this document.

8NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Figure 12
Proper log placement is critical to prevent
sooting. Carefully position the ceramic fiber
logs over the burner as described in the fol-
lowing steps, and detailed in Figures 11
through 15 .
Note: Logs should be placed in the gaps be-
tween the flame peaks and should be posi-
tioned so that at no time they impinge the
flames.
Step 1. Remove the rockwool from the pack-
aging and tear into nickel size pieces. Spread
the rockwool evenly on top of the burner. Do
not use more than is necessary. The rockwool
shouldnot cover theburner ports, as shownin
Figure 10.
Step 2. Place the hole at the bottom of the
Rear Log over the pin at the rear of the log
grate, as shown in Figure 11 . The log should
rest against the back refractory.
Step 3. Place the Rear Top Log over the left
side of the Rear Log. Lay the log over the top
left corner of the Rear Log, as shown in
Figure 12 . The log should rest against the
back refractory.
Figure 13
Logs and Rockwool Placement
Figure 14
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
MEANTTOBURNWOOD. ANYATTEMPT
TODOSOCOULDCAUSEIRREPARABLE
DAMAGE TO YOUR APPLIANCE AND
PROVEHAZARDOUSTOYOURSAFETY.
WARNING: THE SIZE AND POSITION
ON THE LOG SET WAS ENGINEERED TO
GIVE YOUR APPLIANCE A SAFE, RELI-
ABLE AND ATTRACTIVE FLAME PAT-
TERN. ANY ATTEMPT TO USE A DIF-
FERENT LOG SET IN THE FIREPLACE
WILL VOID THE WARRANTY AND WILL
RESULTININCOMPLETECOMBUSTION,
SOOTING,ANDPOORFLAME QUALITY.
Figure 11
Figure 15
Figure 10
Rear Log
Rear Top Log
Front Left Log
Front Right Log
Top Right Log
Rear Log
Step 4. Engage the bottom hole of the Front
Left Log with designated pin on the grate, and
align the bottom groove of the log over the far
left grate bar. See
Figure 13.
Step 5. Engage the bottom hole of the Front
Right Log with designated pin on the far right
gratebar. Align thegroove onthe bottomof the
log over the far right grate bar. See
Figure 14.
Step 6. Engage the bottom hole of the Top
Right Log, over the pin on the Front Right Log.
Rest the upper portion of the log in the notch
of the Rear Log. See
Figure 15 .
Front Right Log Pin
Notch In Rear Log
Front Right Log Pin
Burner Ports
Rockwool
Rear Log Pin

9
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
WIRING DIAGRAMS
Wiring diagrams are provided here for reference purposes only. This information is also provided on schematics found on pullout labels located
within the control compartment attached to the gas control valve. Electronic and Millivolt wiring diagrams are provided here.
SIT Millivolt Wiring Diagram
* For Wall Switch Attachment Only.
If any of the original wire as supplied must be replaced, it
must be replaced with Type AWM 200°C –18 GA. wire.
Thermopile
TH
TP TH
TP
Limit
Switch
Damper Switch
BK
BK
BK
BK WHT
*
1. If any of the original wire as supplied must be replaced,
1. it must be replaced with Type AWM 200°C –18 GA. wire.
2. 120V, 60Hz –Less than 3 amps.
BK
Junction Box
Transf.
120 V.
24 V
Factory Wired Field Wired
BL
Electronic Wiring Diagram (Honeywell)
(Optional ON/OFF Switch Wiring)
R
BK
BL
To Opposite Side
OPT
FAN
G
W
OPT. ACCESSORY
SWITCH
120
VAC.
BK
LIMIT
SWITCH
W
Gas Valve
B
BL
OPTIONAL
ON/OFF SWITCH
OR
WALL SWITCH
R
R
IGNITER
CONTROL
PILOT
ASSEMBLY
Break
Off Tab
DAMPER
SWITCH
BK
BK
WHT BK
BK

10 NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
LIGHTING INSTRUCTIONS – HONEYWELL AND SIT MILLIVOLT GAS VALVE
FOR YOUR SAFETY READ BEFORE LIGHTING
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.”
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.
•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 explosion.
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.
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.
SIT
MILLIVOLT
GAS VALVE
H
I
L
O
W
TPTH TP TH
P
I
L
O
T
P
I
L
O
T
O
N
it
O
F
F
OUT
IN
SIT
MILLIVOLT PILOT
WARNING: IF YOU DO NOT FOLLOW THESE INSTRUCTIONS EXACTLY, A FIRE OR EXPLOSION
MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE.

11
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
INSTRUCTIONS D’ALLUMAGE – VANNE GAZ MILLIVOLT HONEYWELL ET SIT
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 à
étincelle (en poussant le bouton) jusqu’à ce que la veilleuse
s’enflamme. Continuez de tenir le bouton de réglage enfoncé
pendant 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 étérelâché,
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.
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
odeurde gazautour de l’apareil ainsi que près dusol; certainsgaz, 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.
•Appelezimmédiatementvotrecompagniedegazenutilisantletéléphone
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.
VANNE GAZ
MILLIVOLT SIT
SIT
MILLIVOLT PILOT
AVERTISSEMENT : SI VOUS NE SUIVEZ PAS CES INSTRUCTIONS À LA LETTRE, IL POURRAIT S’EN SUIVRE UN INCENDIE OU UNE
EXPLOSION CAUSANT DES DOMMAGES MATÉRIELS, DES BLESSURES CORPORELLES OU MÊME DES PERTES DE VIE.
H
I
L
O
W
TPTH TP TH
P
I
L
O
T
P
I
L
O
T
O
N
it
O
F
F
OUT
IN

12 NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
A. When lighting the appliance, 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.
•Do not use any phone in your building.
FOR YOUR SAFETY READ BEFORE LIGHTING
•Immediately call your gas supplier from a neighbor’s
phone.
•If your gas supplier cannot be reached, call the fire
department.
C. Use only your hand to turn the gas control lever. Never
use tools. If the lever will not 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 explosion.
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.
LIGHTING INSTRUCTIONS — ELECTRONIC
1. For complete shut-down, turn remote wall switch to
“OFF.”
2. Open lower control compartment door.
3. Turn the ON/OFF switch to “OFF”. Do not force.
4. Close the main line shut-off valve.
5. Close lower control compartment door.
TO TURN OFF GAS TO APPLIANCE
LIGHTING INSTRUCTIONS
1. STOP! Read the safety information above on this page.
2. Turn remote wall switch to “OFF.”
3. Open lower control compartment door.
4. Verify main line shut-off valve is open.
5. Turn the ON/OFF switch to “OFF”. 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. Turn the ON/OFF switch to “ON”. Do not force.
8. Turn “ON”all electrical power to appliance (remote wall
switch).
9. Close lower control compartment door.
TO SHUT OFF
1. Turn off all electrical power to the appliance (remote wall
switch).
ON/OFF Switch
OFF
IN
PSI
ON
CONTROL
IGNITER
Front View
WARNING: IF YOU DO NOT FOLLOW THESE INSTRUCTIONS EXACTLY, A FIRE OR EXPLOSION
MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE.

13
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
INSTRUCTIONS D’ALLUMAGE — ELECTRONIC
INSTRUCTIONS D’ALLUMAGE
POUR VOTRE SÉCURITÉ, LISEZ CES INSTRUCTIONS AVANT L’ALLUMAGE
A. Lorsquevousallumezl’appareil,suivezexactementcesinstruc-
tions.
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.
•Appelezimmédiatementvotrecompagnie 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 linterrupteur “ON/
OFF”de la valve àgaz. N’utilisez jamais d’outils. Si
l’interrupteur ne bouge pas manuellement, n’essayez pas de le
réparer. Communiquez immèdiatement avec un technicien de
service qualifié. Toute tentative pour forcer l’interrupteur 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
piècedusystèmederéglageoucommandedugazquiaétésous
l’eau.
1. ARRÊTEZ ! Lisez les consignes de sécuritéau verso de cette
plaque.
2. Tournez l’interrupteur mural àla position d’arrêt “OFF”.
3. Ouvrez la porte du compartiment de contrôle du bas.
4. Assurez-vousquelasoupaped’arrêtdelacanalisationprincipale
est ouverte.
5. Tournezlamanette de réglage dugazàlaposition d’arrêt “OFF”.
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. Tournezlamanettederéglagedugazjusqu’àlapositiondemarche
“ON”. Ne la forcez pas.
8. Ouvrez le courant électrique (“ON”) qui alimente l’appareil
(interrupteur mural).
9. Fermez la porte du compartiment de contrôle du bas.
10. Au besoin, rebrancher l’apareil au courant électrique et
remettre l’interrupteur principal du brûleur àla position “ON”
ou régler le thermostat àla température désirée.
11. Si l’appareil ne se met pas en marche, suivre les instructions
intitulées “Pour fermer le gaz qui alimente l’appareil”et appeler
un technicien ou le fournisseur de gaz.
POUR ÉTEINDRE L’APPAREIL
1. Coupeztoutlecourantélectriquequialimentel’appareil(interrupteur
mural).
POUR FERMER LE GAZ QUI ALIMENTE L’APPAREIL
3. Tournezlamanettede réglage du gaz àla position d’arrêt “OFF”.
Ne la forcez pas.
4. Fermez la soupape d’arrêt de la canalisation principale.
5. Fermez la porte du compartiment de contrôle du bas.
1. Pour une fermeture complète, tournez l’interrupteur mural àla
position d’arrêt “OFF”.
2. Ouvrez la porte du compartiment de contrôle du bas.
Interrupteur
ON/OFF
OFF
IN
PSI
ON
CONTROL
IGNITER
Vue de face
AVERTISSEMENT: SI VOUS NE SUIVEZ PAS CES INSTRUCTIONS À LA LETTRE, IL POURRAIT S’EN SUIVRE UN INCENDIE OU
UNE EXPLOSION CAUSANT DES DOMMAGES MATÉRIELS, DES BLESSURES CORPORELLES OU MÊME DES PERTES DE VIE.

14 NOTE: 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
(thermogenerator).
A. Damper closed or Damper Switch
defective.
B. Wall switch or wires defective.
C. Thermopile may not be generating
sufficient millivoltage.
D. 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 9 ).
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 thermogenerator
(Figure 9 ) . Clean and/or adjust pilot for maximum flame
impingement on thermogenerator. Ensure that the connec-
tion between the valve and thermogenerator are tight and
secure.
Ensure damper control lever is locked in the open position,
all the way to the right. If the damper control lever is locked
in the open position troubleshoot through Steps B., C. and
D. below. If the main burner will still not light, determine if
the damper switch is defective and replace if necessary.
Checkwall switch and wires forproper connections. Jumper
wire across terminals at wall switch, if burner comes on,
replace defective wall switch. If okay, jumper wires across
wall switch wires at valve, if burner comes on, wires are
faulty 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 thermogenerator
(Figure 9 ) .
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.

15
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
• Turn Off Gas Supply
• Assure Valve Switch Is In ON Position
• Disconnect Control Harness
• Set Thermostat To Call For Heat
• Check For Proper Voltage At Control Harness
(See Insert A). Voltage Should Be 24V
Between Thermostat Or Pressure Switch
And 24V Common And 24V Hot.
• Line Voltage Power
• Low Voltage Transformer
• Limit Controller
• Thermostat
• Wiring
2
CHECK
START
NO
• Plug Control Harness Into Valve. Wait For
Internal Check Delay.
YES
• Igniter Warms Up And Glows Red. • With Pilot Burner Cable Connected, Measure
Voltage At Valve HSI Element Output. 24V
Nominal. (See Insert B)
NO
• Replace Igniter/Flame Rod Assembly.
YES
• Replace Valve.
NO
• Turn On Gas Supply. • Pilot Burner Lights. • Check That Pilot Gas Is Flowing. Wait To
Assure Plot Gas Tubing Is Purged. Recycle
Call For Heat If Necessary.
NO
YES
NO
YES
YES
1
• Measure Voltage Between 24V Hot And 24V Common
Leads To Valve Control. Must Measure At Least 19.5
VAC With Igniter Powered (See Insert A). To Identify
Proper Lead, This Check Must Be Done With The
Valve Control Connected And Igniter Powered.
• Check Transformer And
Line Volt Supply.
NO
• Replace Pilot Assembly.
YES
• Check That Pilot Flame Makes Good Contact With
Pilot Burner Flame Rod.
• Check For Good Electrical Connection Through The
Pilot Tubing.
• If Both Of The Above Are Good, Replace Igniter/Flame
Rod Assembly.
• Cycle Thermostat Off And Back On.
YES
• Main Valve Opens And Main Burner Lights. NO
YES
• System Is Okay.
YES
• Main Burner Lights. NO
2
1
Igniter Will Cycle Off And Back On Once During
The 90 Second Ignition Trial. All Voltage
Measurements Must Be Taken While The Igniter
Is Powered.
When Measured Voltage At Connections, Use
Care To Assure Terminals Are Not Damaged.
• Replace Valve.
• Replace Valve.
24 Volt Hot
End View Of
Control Harness
Connector
24 Volt
Common
24 Volt
Switched
Check For Damaged Or Missing Terminals
In Connector
Insert A
Igniter Terminals
Insert B
2
1
TROUBLESHOOTING THE ELECTRONIC IGNITION SYSTEM
SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION
Ensure damper control lever is locked in the open position, all the way to the
right. If the damper control lever is locked in the open position troubleshoot
through Steps B., C. and D. below. If the main burner will still not light,
determine if the damper switch is defective and replace if necessary.
See Below.
Reset the limit switch button. If still not working, access the leads attached to
the limit switch and check for continuity. If no continuity, replace limit switch.
Disconnect the two black wires from the wire nuts. Test switch(s) for
continuity with a multimeter. If continuity is not indicated, switch(s) is
defective and must be replaced.
Note: Before replacing “OFF/ON”switch, be sure to check wiring for loose
connections or broken wires and repair as needed.
Check main burner orifice(s) for stoppage. Clean or replace.
Check vent system for obstructions.
A. Damper closed or
Damper Switch defective.
B. Faulty Valve System.
C. Faulty limit switch.
D. “OFF/ON”or wall switch
defective.
A. Burner orifice plugged.
B. Obstructed vent system.
1. Burner will not light.
2. Burners come “ON”but
go “OFF.”
Note: Beforetroubleshooting,be sure that the appliance mainlinegas shut-off valve, the gas controlvalveand the wall switch are inthe“ON”position.
Important: Valve system troubleshooting should only be accomplished by a qualified service technician.

16 NOTE: 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 docu-
ments 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 distributor or dealer. Parts will be
shipped at prevailing prices at time of order.
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.
If you encounter any problems or have any
questions concerning the installation or ap-
plication of this system, please contact your
distributor. For the name of your nearest
distributor contact:
LHP
1110 West Taft Avenue
Orange, CA 92865
PRODUCT REFERENCE INFORMATION
We recommend that you record the following important information about your fireplace. Please
contactyour Lennox dealer for anyquestions or concerns. For the numberof 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_________________________________________________

17
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Remote Control System (Standard) H0249 RCL
ACCESSORY COMPONENTS
Touch-Up Paint Kit 90L73 FTPK-B
86L33 42 ABF
86L34 42 ABF-BB
86L35 42 ABF-BS
12M03 42BF
Bi-Fold Doors 12M04 42BF-BB
Bi-Fold Doors
Your appliance can be fitted with beautiful bi-
fold doors. Model ABF doors are available for
use with these appliances. Doors are easily
fitted to the fireplace opening. Model 42ABF
doors come with standard black finish. Model
42 ABF-BB doors have a beautiful bright brass
finish. Model 42 ABF-BS doors have a brushed
stainless finish.
Touch-Up Paint Kit
Repair of minor scratches and discoloration of
the appliance black painted surfaces may be
accomplished with the touch-up paint kit.
Standard Remote Control System
(Model RCL)
The Model RCL (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 re-
quired to 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
transmitterispressed,a signallightilluminates
briefly to verify that a signal has been sent.
The Model RCL is designed to operate with all
millivoltignition systems,as wellas electronic
ignition systems. It may be installed with use
for either natural or propane gas appliances.
The RCL offers ease of installation and allows
you to execute on-off commands to the fire-
place effortlessly with one simple motion.
The Model RCL comes complete with detailed
operating instructions.
Decorative Volcanic Stone 80L42 FDVS
Bag of Rockwool 88L53 FGE
Decorative Volcanic Stone
The decorative volcanic stone, Model FDVS,
can be used to enhance the look of your appli-
ance. Spread the decorative volcanic stone
evenly around the bottom of the firebox.
Bag of Rockwool
Replacement ember materials are available for
use with these appliances. Order a bag of
Rockwool, Model FGE to replace ember mate-
rials as part of the periodic maintenance of the
appliance.
Twin Pane Doors
Your appliance can be fitted with beautiful twin
pane doors. Model TPA doors are available for
use with these appliances. Model TPA doors
are easily fitted to the fireplace opening. Model
42 TPA-BB doors have a beautiful bright brass
finish.
Twin Pane Doors 86L36 42 TPA-BB
27M32 42 GEP
Glass Enclosure Panels 27M33 42GEP-BB
Your fireplace can be fitted with beautiful glass
enclosure panels with a bi-fold "look" (non-
operable doors once installed). Model 42GEP
is finished in black trim; the 42GEP-BB model
is finished in polished brass trim.
To ensure warranty and to prevent a potential
fire hazard, do not use any other doors on
these appliances.

18 NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
REPLACEMENT PARTS LIST
Natural Propane
No. DESCRIPTION Part No. Qty. Part No. Qty.
Gas Fireplace Assembly –– – –
1. Firescreen 36L99 2 36L99 2
2. Rod, Screen H3610 2 H3610 2
3. Refractory, Side 88L65 2 88L65 2
4. Refractory, Rear 88L64 1 88L64 1
5. Refractory Access Panel H3685 1 H3685 1
6. Refractory, Base (Left) H3664 1 H3664 1
7. Refractory, Base (Right) H3665 1 H3665 1
8. Log Set, Complete H5132 1 H5132 1
a. Log, Rear –1–1
b. Log, Rear Top –1–1
c. Log, Front Left –1–1
d. Log, Top Right –1–1
e. Log, Front Right –1–1
9. Burner Assembly H5351 1 H5351 1
10. Burner Orifice 18L40 1 74L88 1
11. Bag of Rockwool 88L53 1 88L53 1
12. Limit Switch 62L16 1 62L16 1
13. Damper Switch 82L59 1 82L59 1
14. Flexible Gas Line And Valve 93L32 1 93L32 1
15. Grate Assembly H5352 1 H5352 1
GAS CONTROLS — ELECTRONIC
Natural Propane
No. DESCRIPTION Part No. Qty. Part No. Qty.
30. Gas Valve - Honeywell 62L18 1 62L19 1
31. Pilot Assembly (Honeywell) 62L14 1 62L15 1
32. Transformer 42J32 1 42J32 1
33. Ignitor Assembly (Kit) 87L54 1 87L54 1
GAS CONTROLS — MILLIVOLT
Natural Propane
No. DESCRIPTION Part No. Qty. Part No. Qty.
20. Gas Valve - SIT H1658 1 H1659 1
21. Pilot Assembly (SIT) 62L12 1 62L13 1
22. Pilot Generator 60J79 1 60J79 1
23. Electrode And Cable 74L58 1 74L58 1
24. Piezo Ignitor 10K86 1 10K86 1
25. Ignition Cable H5047 1 H5047 1
26. Pilot Tube 74L56 1 74L56 1

19
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
REPLACEMENT PARTS
20
3
4
5
6
7
2
1
31
30
10
33
11
32
13
12
8
c.
b.
a.
d.
e.
23
21
REF
10
26
22
24 25
14
14
REF
9
15

20 NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Printed in U.S.A. © 2006 by Lennox Hearth Products
P/N 875,034M REV. A 02/2007
The manufacturer 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