Lennox ADAGIO-MN User manual

CARE AND OPERATION INSTRUCTIONS
Do not store or use gasoline or other flammable
vapors or liquids in the vicinity of this or any other
appliance.
WHAT TO DO IF YOU SMELL GAS:
• Do not light any appliance.
• Do not touch any electrical switch; do not
Use any phone in your building.
• Immediately call your gas supplier from a
neighbor’s phone. Follow your gas supplier's
instructions.
• If your gas supplier cannot be reached, call
the fire department.
Installationandservicemustbeperformedbyaquali-
fied installer, service agency or the gas supplier.
WARNING: If the information in this manual is not
followed exactly, a fire or explosion may result
causing property damage, personal injury or loss
of life.
POUR VOTRE SÉCURITÉ: Ne pas entreposer ni utiliser
d'essence ni d'autres vapeurs ou liquides inflammables
à proximité 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.
• Ne touchez à aucun interrupteur.
• Ne pas vous servir des téléphones se trouvant dans le
bâtiment
• Appelezimmédiatementvotrefournisseurdegazdepuis
un voisin. Suivez les instructions du fournisseur.
• Si vous ne pouvez rejoindre le fournisseur de gaz, ap-
pelez le service des incendies.
L'installation et l'entretien doivent être assurés par un
installateur ou un service d'entretien qualifié ou par le
fournisseur de gaz.
AVERTISSEMENT:Assurez-vousdebiensuivrelesinstruc-
tionsdonnées danscettenoticepourréduireauminimum
le risque d'incendie ou d'explosion ou pour éviter tout
dommage matériel, toute blessure ou la mort.
Report No. 116-F-48-5 Adagio™ Series
US
TM
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 appliance. 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 13 for ordering information.
Lennox™ gas-burning appliances are designed for use as a supplemental heater. They are not intended for con-
tinuous use as a primary heat source.
Direct-Vent Gas
Fireplace Heaters
A French manual is available upon request. Order P/N 875,037CF.
Ce manuel d’installation est disponible en francais, simplement
en faire la demande. Numéro de la pièce 875,037CF.
P/N 875,037M Rev. C, 04/2008
Millivolt Models..Electronic Model
ADAGIO-MN..... ADAGIO-EN
ADAGIO-MP
Installer: Leave This Manual With The Appliance.
Consumer: Retain This Manual For Future Reference.

2
AVERTISSEMENT
Ne pas se servir de cet appareil
s'il a été plongé dans l'eau,
complètement ou en partie.
Appeler un technicien qualifié
pourinspecterl'appareiletrem-
placertoutepartiedusystèmede
contrôle et toute commande qui
ont été plongés dans l'eau.
WARNING
Failuretocomplywiththeinstal-
lationandoperatinginstructions
provided in this document will
result in an improperly installed
andoperatingappliance,voiding
its warranty. Any change to this
appliance and/or its operating
controlsisdangerous. Improper
installation or use of this appli-
ance can cause serious injury or
deathfromfire,burns,explosion
or carbon monoxide poisoning.
WARNING
Do not use these appliances if
any part has been under water.
Immediately call a qualified,
professional service technician
to inspect the appliances and to
replace any parts of the control
system and any gas controls
which have been under water.
IMPORTANT
These appliances must not be
connected to a chimney or flue
serving a separate solid-fuel
burning appliance. WARNING
Do not attempt to alter or modify
theconstructionoftheappliance
or its components. Any modi-
fication or alteration may void
the warranty, certification and
listings of this unit.
WARNING
If the information in this
manual is not followed
exactly, a fire or explo-
sion may result caus-
ing property damage,
personal injury or loss
of life.
WARNING
Improper installation, adjust-
ment, alteration, service or
maintenance can cause injury
or property damage. Refer to
this manual. For assistance or
additional information consult
a qualified installer, service
agency or the gas supplier.
SAFETY & WARNING
INFORMATION
WARNING
These fireplaces are vented
gas appliances. Do not burn
wood or other material in these
appliances.
WARNING
This applianceis onlyforusewith
the type of gas indicated on rating
plate. This appliance is not con-
vertible for use with other gases,
unless a certified kit is used.
WARNING
Do not place clothing or other
flammable materials on or near
this appliance.
WARNING
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,
obtainfreshairimmediately.Turn
offthe gas supplytotheappliance
andhaveitservicedby a qualified
professional,asitmaynotbeoper-
ating correctly. Some people are
moreaffectedbycarbonmonoxide
than others. These include preg-
nant women, people with heart
or lung disease or anemia, those
undertheinfluenceofalcohol,and
those at high altitudes.
WARNING
Any safety guard or screen
removedforservicingtheappli-
ance must be replaced prior to
operating the appliance.
AVERTISSEMENT
Cet appareil doit être utilisé
uniquement avec les types de
gaz indiqués sur la plaque sig-
nalétique. Nepasl'utiliser avec
d'autres gaz sauf si un kit de
conversion certifié est installé.
AVERTISSEMENT
Surveiller les enfants. Garder les
vêtements,lesmeubles,l'essence
ouautresliquidesà vapeurinflam-
mables à cote de l'appareil.
IMPORTANT: PLEASE READ THIS
MANUAL IN ITS ENTIRETY AND
UNDERSTAND THESE RULES TO
FOLLOW FOR SAFETY. WARNING
Children and adults should be
alerted to the hazards of high
surfacetemperaturesandshould
stay away to avoid burns or
clothing ignition. Use caution
around the appliance to avoid
burnsorclothingignition.Young
children should be carefully
supervised when they are in the
same room as the appliance.
Note: An Optional Screen Door
or Screen Panel for the glass is
available (see Page 13 for order-
ing information).
IMPORTANT
Theventterminationishotwhile
in operation and for a period of
time following the use of the
fireplace. To prevent contact
with hot surfaces, we recom-
mend the use of a termination
guard.SeePage 13 forordering
information.

3
CONGRATULATIONS ON THE PURCHASE OF YOUR NEW GAS APPLIANCE MANU-
FACTURED BY LENNOX HEARTH PRODUCTS.
When you purchased your new gas-fired fireplace, you joined the ranks of thousands of individuals
whose answer to their home heating needs reflects their concern for efficiency and our environment.
We extend our continued support to help you achieve the maximum benefit and enjoyment available
from your new gas-fired fireplace. It is our goal at Lennox Hearth Products to provide you, our
valued customer, with an appliance that will ensure years of trouble-free warmth and pleasure.
Thank you for selecting a Lennox Hearth Products gas-fired fireplace as the answer to your home
supplemental heating needs.
Sincerely, All of us at Lennox Hearth Products
It is imperative that the control compartment,
burners and circulating air passage ways of
appliance be kept clean. See Maintenance
instructions on Page 6.
S'assurer que le brùleur et le compartiment des
commandes sont propres. Voir les instructions
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.
Duetohightemperaturestheapplianceshould
belocatedoutoftrafficandawayfromfurniture
and draperies. Locate furniture and window
coverings accordingly.
These fireplaces are designed as supplemental
heaters. Therefore, it is advisable to have
an alternate heat source when installed in a
dwelling.
These appliances are designed to operate on
natural or propane gas only.
Millivolt Models -
Input of millivolt models is shown in the fol-
lowing table:
Electronic Models -
Electronic models have a modulating gas valve.
Input of electronic models is shown in the fol-
lowing table:
INTRODUCTION
The fireplace models covered in this manual
are direct-vent sealed combustion gas fireplace
heaters designed for residential application.
Direct-vent appliances operate with the com-
bustion chamber completely isolated from the
indoor environment. All air for combustion is
brought in from the outside and exhaust gases
areventedthroughthesame directvent,co-axial
(intake/exhaust) vent system.
The millivolt appliances are designed to operate
on either natural or propane gas. A millivolt gas
controlvalvewithpiezoignitionsystemprovides
safe, efficient operation. If any optional acces-
sories which require electrical power are being
installed, the electrical power must be provided
at the time of appliance installation.
The electronic appliances are designed to op-
erate on either natural or propane gas (if field
converted). An electronic intermittent pilot
systemwhichprovidessafe,efficientoperation.
External electrical power is required to operate
these appliances.
These appliances comply with National Safety
Standards and are tested and listed by OMNI-
Test Laboratories (Report No. 116-F-48-5)
to ANSI Z21.88 (in Canada, CSA-2.33), and
CAN/CGA-2.17-M91 in both USA and Canada,
as vented gas fireplace heaters.
The Installation must conform to local codes or
in the absence of local codes, with the National
FuelGasCode,ANSIZ223.1/NFPA54-latestedi-
tion,or the NaturalGas andPropaneInstallation
Code,CSA B149.1-latestedition. Theappliance,
when installed, must be electrically grounded in
accordance with local codes or, in the absence
of local codes, the latest edition of the National
Electrical Code, ANSI/NFPA 70, or the Canadian
Electrical Code, CSA C22.1.
GENERAL INFORMATION
Note: Installation and repair should be per-
formed by a qualified service person. The
appliance should be inspected annually by a
qualified professional service technician. More
frequent inspections and cleanings may be
required due to excessive lint from carpeting,
bedding material, etc.
TABLE OF CONTENTS
Safety and Warning Information .......Page 2
Introduction ......................................Page 3
General Information ..........................Page 3
Operation/Care of Your Appliance .....Page 4
Gas Controls Access .........................Page 4
Variable Flame Adjustment................Page 5
Maintenance......................................Page 5
Front Glass Enclosure Panel,
Removal and Installation.................Page 7
Burner Flame Appearance & Sooting Page 8
Burner Flame Adjustments................Page 8
Install Embers & Logs.......................Page 9
Millivolt Appliance Checkout .............Page 11
Electronic Appliance Checkout..........Page 11
Accessory Components ....................Page 11
Wiring Diagrams...............................Page 14
Warranty ...........................................Page 14
Product Reference Information.........Page 14
Lighting Instructions – Millivolt ........Page 15
Lighting Instructions – Electronic .....Page 17
Troubleshooting Guide – Millivolt......Page 19
Troubleshooting Guide – Electronic ..Page 20
Replacement Parts List .....................Page 21
Input (BTU/HR) Manually-Modulated Gas
Valves (millivolt models)
Model NATURAL GAS
(BTU / HR)
PROPANE GAS
(BTU / HR)
ADAGIO-MN 13,000 high
10,000 low -------------
ADAGIO-MP ------------- 13,000 high
10,000 low
Table 1
Input (BTU/HR) Electronic Models
Model NATURAL GAS
(BTU / HR)
PROPANE GAS
(BTU / HR)
ADAGIO-EN 13,000 high
10,000 low -------------
ADAGIO-EP
if field converted ------------- 13,000 high
10,000 low
Table 2
Table 3 shows the units' gas orifice size for
the elevations indicated.
Model Orifice Size Elevation
Feet
Nat. Prop.
ADAGIO .067"
(#51)
.042"
(#58) 0-4500
(0-1372)
Table 3

4NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Pilot
Adjustment
Screw
H
I
L
O
W
H
T
P
T
H
T
P
T
P
I
L
O
T
P
I
L
O
T
O
N
ti
O
F
F
IN OUT
OFF
ON
HI/LO Variable
Flame Height
Adjustment
Manifold
Pressure Tap
Inlet Pressure
Tap
Main Gas
Control Knob
OFF/PILOT/ON
Piezo Igniter
StandardBurnerOFF/ON
Rocker Switch
Gas Controls / Control Compartment
Access
The gas controls can be found behind the bot-
tom control panel. Open the bottom control
panel (see instruction sheet provided with the
facade kit for additional information about the
control panel).
On millivolt systems, the piezo igniter, Hi/Lo
flame adjustment knob, and pilot and main gas
ON/OFF control knob are located in the control
compartment. See Figure 1.
Operation of millivolt and electronic gas con-
trol systems are different. Before lighting and
operating your appliance determine if you have
a millivolt or electronic appliance.
Refer to Figure 1 for access to the gas control
valve. Millivolt appliances is fitted with the gas
control valve shown in Figure 2.
Appliances with electronic systems is fitted
with the electronic valve shown in Figure 3.
Familiarize yourself with the gas control valve
that your appliance uses.
Millivolt Appliances -
To light millivolt appliances refer to the detailed
lightinginstructions foundonPage15(English)
and Page 16 (French). Millivolt appliance light-
ing instructions may also be found on the pull
out lighting instruction labels attached to the
gas control valve.
Maximum manifold pressure is 3.5 in. W.C.
(0.87 kPa) for natural gas and 10 in. W.C. (2.49
kPa) for Propane (LP) gas.
Test gauge connections are provided on the
front of the millivolt and electronic gas control
valve (identified IN for the inlet and OUT for the
manifold side).
Minimuminletgas pressure to theseappliances
is5.0inches watercolumn(1.24kPa)fornatural
gas and 11 inches water column (2.74 kPa) for
propane for the purpose of input adjustment.
Maximum inlet gas supply pressure to these
appliances is 10.5 inches water column (2.61
kPa) for natural gas and 13.0 inches water
column (3.23 kPa) for propane.
These appliances must be isolated from the
gas supply piping system (by closing their
individual manual shut-off valve) during any
pressure testing of the gas supply piping system
at test pressures equal to or less than 1/2 psig
(3.5 kPa).
These appliances and their individual shut-off
valves must be disconnected from the gas sup-
ply piping system during any pressure testing
of that system at pressures in excess of 1/2
psig (3.5 kPa).
OPERATION AND CARE OF YOUR
APPLIANCE
Appliance operation may be controlled by the
following means: the factory provided ON/OFF
control switch, a remotely located optional wall
switch, optional wall thermostat or optional
remote control. The mounted ON/OFF control
switch is located in the control compartment.
See Figure 1.
Burn-in Period
During the first few fires of this appliance there
will be some odor due to the curing of the
paint and burning off of lubricants used in the
manufacturing process.
Depending on your use, the burn-in period may
take a few hours or a few days.
KEEP YOUR HOUSE WELL VENTILATED
DURING THE CURING PROCESS. THE ODOR
AND HAZE EMITTED DURING THE CURING
PROCESS CAN BE QUITE NOTICEABLE AND
MAY SET OFF A SMOKE DETECTOR. ENSURE
THAT A SMOKE DETECTOR IS NOT LOCATED
DIRECTLY ABOVE THE APPLIANCE OR TOO
CLOSETO THISAPPLIANCE(FOLLOWSMOKE
DETECTOR MANUFACTURER'S INSTRUC-
TIONS FOR PROPER LOCATION).
If an optional blower is installed, do not turn it
on during the burn-in period.
A white film may develop on the glass front
during the first few fires as part of the curing
process. The glass should be kept clean during
thefirsttwoweeksofusetopreventthefilmfrom
baking on (making it very difficult to remove).
See Glass Cleaning on Page 5.
FPO
Millivolt appliances are fitted with an ON/OFF
rocker switch for appliance ON/OFF control.
See Figure 1 for its location. Once the pilot is
lighted, the ON/OFF rocker switch will control
the appliance ON/OFF operation. To operate:
Toggle the switch between its ON and OFF
positions.
If your millivolt appliance is equipped with an
optional remote wall switch, wall thermostat
or remote control kit and the pilot is lit, the
appliance main burner may be turned on and
off with the wall switch, wall thermostat or
remote control.
SIT Millivolt Gas Valve
Figure 2
Gas Valve
Burner
ON/OFF Switch Push Button
Piezo Igniter
Glass Door
Gas Shut-
Off Valve
Gas Flex-
Line
Figure 1 - Control Compartment

5
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Pilot
Adjustment
Screw
HI/LO Variable
Flame Height
Adjustment
Manifold
Pressure Tap Inlet Pressure
Tap
StandardBurner
OFF/ON Rocker
Switch
MAINTENANCE
IMPORTANT: TURN OFF GAS AND ANY ELEC-
TRICAL POWER BEFORE SERVICING THE
APPLIANCE.
The appliance and venting system should be
thoroughly inspected before initial use and at
least annually by a qualified service technician.
However, more frequent periodic inspections
and cleanings should be performed by the
homeowner. Homeowner must contact a
qualified service technician at once if any
abnormal condition is observed.
Keep lower control compartment clean by
vacuuming or brushing at least twice a year.
More frequent cleaning may be required due to
excessivelintfromcarpeting,beddingmaterials,
etc. It is important that control compartments,
burners and circulating air passageways of the
appliance be kept clean.
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 after
servicing.
Always turn off gas to the pilot (millivolt ap-
pliances) before cleaning. Before re-lighting,
refer to the lighting instructions in this manual.
Instructions are also found on a pull-out panel
located in the control compartment.
Always keep the appliance area clear and free
from combustible materials, gasoline and other
flammable liquids.
Remember, Millivolt appliances have a continu-
ous burning pilot flame. Exercise caution when
using products with combustible vapors.
Glass Cleaning
Remove the facade assembly by lifting it up
and toward you (see the installation instruction
sheet provided with the facade for additional
information).
Remove the front glass enclosure (see Front
Glass Enclosure Panel, Removal and Installa-
tion on Page 7).
Note: Cleanglassafter first twoweeks ofopera-
tion (after Burn-In period is over) and then only
when necessary and when the fireplace is cool.
Wipe surface with clean, dampened, soft cloth.
Follow with dry, soft towel as desired. Take care
not to scratch the glass surface.
The viewing glass should be cleaned periodi-
cally to remove any build-up caused from the
following:
• During start-up, it is normal for condensa-
tion to form on the inside of the glass (this
condensation and fog will usually disappear
in a few minutes). The moisture can cause
lint,dustand otherairborneparticlesto cling
to the glass surface.
• Initial curing of the high temperature paint
and burning off of lubricants used in the
manufacturing process may result in a film
on the glass.
• A white coating may form on the glass as a
result of impurities and minerals in the fuel.
It is recommended that the glass be cleaned
two or three times during each heating season,
depending on the circumstances present. The
following cleaning solutions are approved for use
to clean glass:
• Non-ammonia based household cleaner
• 50%-50% mix of white vinegar & water
• Gas fireplace/stove glass cleaner
Inspect Glass Gasket - Visually inspect the
gasket on the backside of the glass enclosure
panels. The gasket surface must be clean, free
of irregularities and seated firmly.
Electronic Appliances -
Tolightelectronicappliancesrefertothedetailed
lighting instructions found in both English and
FrenchonPages17and18oftheseinstructions.
Electronic appliance lighting instructions may
also be found on the pull out lighting instruction
labels attached to the gas control valve.
Electronic appliances are fitted with an ON/OFF
rockerswitchforapplianceON/OFFcontrol.See
Figure 1 for its location.
Once the pilot is lighted, the ON/OFF rocker
switch will control the appliance ON/OFF opera-
tion. To operate: Toggle the switch between its
ON and OFF positions.
Figure 3 - SIT Electronic Gas Valve
WARNING
Do not use abrasive cleaners
on glass. Never clean the glass
when it is hot.
HI
LO
OFF
ON
If your electronic appliance is equipped with an
optional remote wall switch, wall thermostat or
remote control kit the appliance main burner
may be turned on and off with the wall switch,
wall thermostat or remote control.
Variable Flame Height Adjustment
(Millivolt And Electronic Appliances)
All Millivolt and Electronic appliances are
equipped with a variable gas control valve.
Flame height for these models may be adjusted
through a range between fixed low and high
settings, alternately, while the appliance is in
operation.
Adjust the flame height as desired after lighting
theappliancebyrotatingthevariableadjustment
control knob located on the front of the valve
(refer to Figures 2 and 3).
Whenlitforthefirsttime,thisappliancewillemit
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.
WARNING
Do not attempt to touch the front
enclosure glass with your hands
while the fireplace is in use.

6NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Maintenance Schedule
Annually (Before the onset of the Burning Season)
MAINTENANCE TASK ACCOMPLISHING PERSON PROCEDURE
Inspecting/Cleaning Burner, Logs
and Controls
Qualified Service Technician Inspect valve and ensure it is properly operating. Check piping
for leaks. Vacuum the control compartment, fireplace logs and
burner area.
Check Flame Patterns and Flame
Height
Qualified Service Technician Refer to Figure 6 on Page 8 and verify the flame pattern and
height displayedby theapplianceconformstothepicture. Flames
must not impinge on the logs. Ensure flames are steady (not
lifting or floating).
Inspecting/Cleaning Pilot and Burner Qualified Service Technician Refer to Figure 14 (SIT Millivolt), or Figure 15 (SIT Electronic)
on Page 11. Remove any surface build-up on pilot and burner
assembly. Wipethepilotnozzles,igniter/flamerodandpilothood.
Ensure the pilot flame engulfs the flame sensor as shown.
Checking Vent System Qualified Service Technician 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 dislocation of the vent components. Note: Excessive
condensation can causecorrosionofcaps,pipe & fittings(exces-
sive condensation can be caused by long lateral runs, too many
elbows and/or exterior portions of the system being exposed to
cold weather). Also inspect wall straps or plumbers's tape to
ensure it is secure and in place.
Appliance Checkout Qualified Service Technician Perform the appropriate appliance checkout procedure detailed
in this manual.
Replacing Rockwool Ember Materials Homeowner/Qualified Service
Technician
Removeoldembermaterialsandvacuumthe rockwoolplacement
area. Place new rockwool as described in this document.
Periodically (After the Burning Season)
MAINTENANCE TASK ACCOMPLISHING PERSON PROCEDURE
Cleaning Firebox Interior Homeowner Carefully remove logs and rockwool. Vacuum out interior of the
firebox and clean firebox walls. Replace the logs and rockwool,
as detailed in this manual.
Check Flame Patterns and Flame
Height
Homeowner Refer to Figure 6 on Page 8 and verify the flame pattern and
heightdisplayedby theappliance conforms to thepicture.Flames
must not impinge on the logs.
Checking Vent System Homeowner 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 dislocation of the vent components.
Cleaning Front Glass Enclosure Panel Homeowner Clean as necessary following the directions provided in this
manual. DO NOT TOUCH OR ATTEMPT TO CLEAN GLASS
WHILE HOT.
Important Note: Do NOT remove the refractory firebox liner panels. This appliance is not approved for operation without a firebox liner kit. If a
replacement liner kit is needed, see Page 12 for ordering information. Install the liner kit per the instructions provided in the kit.

7
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Front Glass Enclosure Panel, Removal
and Installation
WARNING
Donotoperateappliancewiththe
glass front removed, cracked or
broken. Replacementoftheglass
should be done by a licensed or
qualified service technician.
WARNING
Do not attempt to substitute the
materials used on this door, or
replace cracked or broken glass
with any materials other than
those provided by the appliance
manufacturer.
WARNING
The glass door of this appli-
ance must only be replaced as a
complete unit as provided by the
manufacturer. Do not attempt to
replacebroken,crackedorchipped
glass separately.
WARNING
Do not attempt to touch the front
enclosure glass with your hands
while the fireplace is in use.
An firebox liner kit (sold separately) must be
installed prior to installing the glassdoor. Install
the liner per instructions provided in kit.
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 components within
the firebox.
During this appliance checkout and adjust-
ment period, a potential safety hazard exists
- EXERCISE EXTREME CAUTION to prevent
the occurrence of any burn injuries from the
exposed flames or hot surfaces.
Removing Glass Enclosure Panel
(see Figure 4A and 4B)
1. Remove the facade assembly by lifting it
up and toward you (see the installation
instruction sheet provided with the facade
for additional information).
2. Locate the two (2) latches at the top of the
control compartment (see Figure 4A). To
disengage the two latches, pull the spring-
loaded latches forward then down as shown
in Figure 4A.
3. Swingthebottomof the doorout(see Figure
4B)and raise it slightly to lift the top flange of
the door frame away from the appliance.
Installing Glass Enclosure Panels
(see Figure 4A and 4B)
Note: Thisapplianceis not approvedforopera-
tion without a log set (provided) or a firebox
liner kit installed (sold separately).
1. Visually inspect the gasket on the backside
of the glass panel. The gasket surface must
be clean, free of irregularities and seated
firmly.
IMPORTANT NOTE: Be very careful not to
damage the refractory firebox liner when
installing the door. Take care when seat-
ing the top door gasket so that it is not
obstructed by the refractory panel. If the
door feels restricted when latching, the top
door gasket may not be properly seated.
2. Position the glass enclosure panel in front
of the firebox opening at a 45 degree angle
and engage the top flange over the lip at the
top of the firebox opening (read important
note above). See Figure 4B.
3. Swing the glass enclosure panel down and
back. Ensure the gasket seats evenly as
the panel draws shut. Close the latches to
secure the panel.
4. Reinstall the facade assembly.
WARNING
Be careful not to abuse the glass
enclosure assembly by striking
or slamming it. Handle this
glass with extreme care! Glass
is susceptible to damage – Do
not scratch or handle roughly
whilereinstallingthe glass door
frame.
Figure 4b- Glass Door Removal
Door
Assembly
Figure 4a- Glass Door Latches
Spring-Loaded Latches
Pull forward then down to release
Pull Latches
Forward

8
Flame Appearance and sooting
(see Figure 5 on Page 8)
Appliances operated with air shutter openings
that are too large will exhibit flames that are
blue and transparent. 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
the flames and lack of combustion air entering
theairshutteropening.Toachieveawarmyellow
to orange flame with an orange body that does
not soot, the shutter opening must be adjusted
between these two extremes. No smoke or soot
should be present. These logs are designed to
be involved in the fire. Flames will impinge the
top tips of the right and left logs.
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
If the logs are properly positioned and sooting
conditions exist, the air shutter opening on the
main burner tube should be adjusted. Normally,
themoreoffsetsintheventsystem,thegreaterthe
need for the air shutter to be opened further.
Burner Adjustment Procedure
To adjust the flame, move the lever arm up
or down (located in the lower control area as
shown in Figure 5). When the arm is positioned
all the way down it is fully open. When the arm
is positioned all the way up, it is closed.
Ensure that the air shutter is closed (push lever
all the way up).
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.Positiontheairshuttertothefactory
setting as shown in Figure 5. Allow the burner
to operate for at least 15 minutes. Observe the
flame continuously.
The adjustment rod, arm and associated
adjustable air shutter is patented technology.
Flame adjustments can be made quickly and
accurately to taste without the need of disas-
sembling the appliance and waiting for 30
minutes after each 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
closed as described in the previous paragraphs.
Operate the appliance for a period of time as the
effect diminishes, ensuring that the appliance
does not develop sooty flames.
Leave the control knob in “ON” position and
turn the remote switch “OFF.” Close the lower
control compartment panel.
Note: See Figure 6 for proper burner flame
appearance.
CAUTION: DO NOT BEND THE AIR SHUTTER
ROD. MAKE SURE THE AIR SHUTTER MOVES
WHEN THE LEVER ARM IS OPERATED.
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 15 minutes after each
adjustment.
Air Shutter Adjustment Guidelines
• If there is smoke or soot present, first check
the log set positioning to ensure that the
flames are not impinging on any of the logs.
If the log set is properly positioned and a
sooting condition still exists, then the air
shutter opening should be increased.
Figure 6 - Burner Flame Appearance
• Themoreoffsetsintheventsystem,thelarger
the air shutter opening will need to be.
• An appliance operated with the air shutter
opened too far, may have flames that appear
blue and transparent. These weak, blue and
transparent flames are termed anemic.
• Propane models may exhibit flames which
candle or appear stringy. If this is present
and persists, adjust the air shutter to a more
closed position, then operate the appliance
for a few more minutes to ensure that the
flame normalizes and the flames do not
appear sooty.
CAUTION
Carbonwillbeproducediftheair
shutter is closed too much. Any
damageduetocarboningresult-
ing from improperly setting the
air shutter is not covered under
the warranty.
BURNER ADJUSTMENTS
WARNING
Air shutter adjustment should
only be performed by a qualified
professional service technician.
IMPORTANT
Ensure front glass panel are in
place and sealed during adjust-
ment.
CAUTION
The air shutter and appliance
surfacesarehot. Exercisecaution
to avoid injury while adjusting
air shutter.
Figure 5 - Burner Air Shutter
Adjustment
All the way up = CLOSED
All the way down = OPEN
Adjust the rod to the full closed position for
both Natural Gas and Propane. Light the fire-
place, then adjust accordingly after heat-up.
Valve
Front of Burner
Air Shutter
Adjustment
Rod
Reach around the
left side of the
valve to locate
adjustment rod

9
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Figure 7 - Log Set and Glowing Embers
INSTALLING THE LOGS AND GLOWING EMBERS
AFIREBOXLINERKITMUSTBEINSTALLEDBEFOREINSTALLINGLOGS.
THIS APPLIANCE IS NOT APPROVED FOR OPERATION WITHOUT A
FIREBOX LINER KIT INSTALLED (SOLD SEPARATELY). SEE PAGE 12
FORORDERINGINFORMATION.INSTALLLINERKITANDLOGSUPPORT
BRACKET PER INSTRUCTIONS PROVIDED IN KIT.
Proper log and ember placement is critical to encourage outstanding flame
appearance and prevent sooting. These fires are designed to provide a
rich orange/red glow on the logs.
Note: Log setup is by design asymmetric. The fire is intentionally posi-
tioned off center to provide a natural fire look.
The information provided here is to be used in conjunction with the Care
and Operation Instructions in this document. Please read the Care and
Operation Instructions completely before completing the procedures
detailed in these placement instructions.
WARNING
• DO NOT attempt to install the logs until the appli-
ance installation has been completed, the gas
line connected and tested for leaks and the initial
burner operation has been checked out.
• 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 logs and embers.
• This appliance is not designed to burn wood. Any
attempt to do so could cause irreparable damage
to the appliance and prove hazardous to your
safety.
• Iflogsarenotinstalledaccordingtotheloginstalla-
tioninstructions,flameimpingementandimproper
combustion could occur and result in soot and/or
excessive production of carbon monoxide (CO), a
colorless, odorless, toxic gas.
• Thesizeandpositionofthelogsetwasengineered
to give the appliance a safe, reliable and attrac-
tive flame pattern. Any attempt to use a different
log set in the fireplace will void the warranty and
willresultinincompletecombustion,sooting,and
poor flame quality.
Complete the following before starting the log installation.
• READ WARNINGS ON THIS PAGE AND THROUGH-OUT MANUAL
BEFORE PROCEEDING
• Remove the front glass enclosure panel (see Glass Enclosure Panel
Removal Instructions, Page 7).
• If the logs are being installed for the first time, the following applies:
DO NOT attempt to install the logs until the appliance installation has
been completed, the gas line connected and tested for leaks and the
initial burner operation has been checked out. Remove the following
from firebox; log set and bag of embers. Handle logs carefully to
prevent breakage.
Glowing Embers
Bag of Glowing
Embers (rockwool)
Separate into Quarter
Size (separate) Pieces
Locating Pins - 5 Places
Firebox
Ember Burner Ports
LOG SET
Catalog Number H1237
* Item Description
A Log, Rear
B Log, Left Middle
C Log, Right Middle
D Log, Left Front
E Log, Right Front
* Item "letters" above correspond to photos
D
C
A
B
E
12
345
This appliance is provided
with enough Glowing Em-
bers for several applica-
tions, do not use all that is
in a new bag at one time.
For best glowing effect,
replace the ember material
annually.
Log Support Bracket

10
1. Place the rear log (A) as shown in Figure 8.Position the 2 holes on
the bottom of the log over the corresponding locating pins (#1 & #2)
and against the log support bracket. See Figure 7 for pin and rear
bracket locations.
2. Place the left middle log (B) as shown in Figure 9.Position the hole
on the bottom of log B over the corresponding locating pin on Log A.
5. Place the right middle log (C) as shown in Figure 12. Position log
C behind Log E and resting on the "flat" on Log A.
3. Place the left front log (D) as shown in Figure 10. Position the hole
on the bottom of log D over pin# 3.
4. Place the right front log (E) as shown in Figure 11. Position the hole
on the bottom of log E over pins #4 and # 5.
6. Ember Placement - Separate the Embers (rockwool) into pieces
about the size of a quarter (see Figure 7). Keep the pieces fluffed up,
not matted. Distribute these pieces over the surface of the burner, as
shown in Figure 13. Do not use more than is necessary. Ensure that
the main burner ports remain uncovered by the ember material.
A
Figure 8 - Install Rear Log (A)
B
A
Figure 9 - Install Left Middle Log (B)
Figure 12 - Install Right Middle Log (C)
Figure 10 - Install Left Front Log (D)
Figure 11 - Install Right Front Log (E)
12
Figure 13 - Ember Placement DONOTplaceember materialdirectly
over the ember burner ports.
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
345
D3
D
C
E
A
E

11
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
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" (10 mm) at the pilot generator
(thermopile) and the top 1/8" minimum (tip)
of the quick drop out thermocouple should be
engulfed in the pilot flame. The flame should
project 1" (25 mm) beyond the pilot hood at all
three ports. See Figure 14.
To light the burner, refer to the lighting instruc-
tions on Pages 15 and 16.
ACCESSORY COMPONENTS
Remote Control System (Standard) H0249 RCL
Standard Remote Control System
The Model RCL (Standard) Remote Control
System, features a simple On/Off control func-
tion for the fireplace. This model includes a
hand-held transmitter, a remote receiver with
wall-mountcoverplateandallhardwarerequired
to install the unit. The remote receiver can be
wall or hearth mounted.
Deluxe Remote Control System
The Model RCL-T (Deluxe) Remote Control
System has all of the features of the standard
system along with an added easy to read LCD
screenwhichpresentsaccesstomanyenhance-
ments, including; battery power level indicator,
timer, mode of operation, thermostatic display
including room temperature in either metric
of English units, flame indicator and clock.
Fully programmable, the Model RCL-T allows
for command over nearly all operational and
temperature variables, using the hand held
remote control transmitter.
Remote Control System (Deluxe) H0251 RCL-T
Forced Air Blower Kit, Single Speed
H6161 ADAGIO-BLWR
Forced Air Kit
(for millivolt models only)
If the main power supply was wired to the
fireplace J-box/receptacle and wired to a wall
switch or wall mount rheostat at the time of
installation, an optional air circulating blower
kit can be installed.
Electronic Appliance Checkout
To light the burner, refer to the lighting instruc-
tions on Pages 17 and 18. Ensure the igniter
lights the pilot. The pilot flame should engulf
the flame sensor as shown in Figure 15.
Figure 14
Thermocouple
Thermopile
Pilot
Nozzels
SIT MILLIVOLT PILOT ASSEMBLY
Igniter Rod
Pilot Hood
Proper Pilot Flame Appearance
3/8" Min.
(9 mm)
Figure 15
Pilot
Nozzels
ELECTRONIC PILOT ASSEMBLY
Proper Pilot Flame Appearance
Flame
Sensor
Pilot Hood Igniter
Rod
Flame Modulating Remote Control
System
The Model RCL-MN and RCL-ML remote con-
trolshaveonandoffburnercontrol,flameheight
adjustment, thermostat operation and a timer
to shut unit down automatically. This system
also provides blower on/off and speed control
(if optional Blower Kit is installed).
Flame Modulating Remote Control
H0301 RCL-MN Natural Gas
H0302 RCL-ML LP/Propane Gas
H4635 DWTK Wall Thermostat Kit, Digital
Wall Thermostats***
The wall thermostat kit provides temperature
control for optimum comfort.
***Note: These kits can only be installed at the time of the
fireplace installation.
With proper care and maintenance, your appli-
ance will provide many years of enjoyment. If
you should experience any problem, first refer
to the troubleshooting guide in this manual. If
problem persists, contact your Lennox Hearth
Products distributor.
(ref. Form # 750,127M)
(ref. Form # 750,129M)
(ref. Form # 750,130M)
(ref. Form # 750,238M)

12 NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
ON/OFF Wall Switch Kit
The ON/OFF wall switch kit may be used to
control the operation of the fireplace burner (in
place of the unit-mounted ON/OFF switch) or
provide ON/OFF control of the optional blower.
Install the ON/OFF wall switch in a convenient
location near the fireplace.
ACCESSORY COMPONENTS CONTINUED Refractory Firebox Liner Kits
The refractory firebox liner kit includes a 1-piece
ceramic panel which covers the side and back
walls of the firebox.
Refractory Firebox Liner Kits**
Cat. No. Model Description
H5769 ADAGIO-RR Red Rustic Liner
H5770 ADAGIO-RH Red Herringbone Liner
H5771 ADAGIO-CS Cobblestone Liner
H5772 ADAGIO-ST Stucco Liner
Red Rustic Liner
Cobblestone Liner
Stucco Liner
Red
Herringbone
Liner
Iron Gate Facade
Copper Gate Facade
Facade Kits
These decorative facade kits are offered in two
attractive styles.
Variable Speed Wall Switch
Provides variable speed control if optional
blower kit is purchased.
Variable Speed Wall Switch ***
Cat. No. Model No. Description
045571H VSWS Rocker Switch Kit
ON/OFF Wall Switch Kit ***
Cat. No. Model No. Description
85L87 FWSK ON/OFF Wall Switch Kit
*Note: To ensure proper fit of the facade. The
appliance base will need to be elevated 3/4"
above the floor to allow for the proper fit of the
facade (i.e. use 3/4" board as platform).
**Note: This appliance is not approved for
operation without a firebox liner kit (sold
separately).
***Note: These kits can only be installed at
the time of the fireplace installation.
Facade Kits *
Cat. No. Model Description
H5773 ADAGIO-RR Arch Face-Black*
H5774 ADAGIO-RH Arch Face-Nickel*
H5775 ADAGIO-CS Garden Gate - Vintage Iron
H5776 ADAGIO-ST Garden Gate - Vintage
Copper
Arch Black Facade*
Arch Brushed Nickel Facade*
* A filigree inset kit is also required - sold separately
(ref. Form # 750,231M and 750,253M)
(ref. Form # 750,232M)

13
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Filigree Inset Kits (Sold Separately - Required)
H6845 ADAGIO-INSET-
ASPEN-BK
Aspen, Black
H6846 ADAGIO-INSET-
ASPEN-BN
Aspen, Brushed Nickel
H6847 ADAGIO-INSET-
ASPEN-BKN
Aspen, Black Nickel
H6848 ADAGIO-INSET-
ASPEN-G
Aspen, Gold
H6849 ADAGIO-INSET-
NAPA-BK
Napa, Black
H6850 ADAGIO-INSET-
NAPA-BN
Napa, Brushed Nickel
H6851 ADAGIO-INSET-
NAPA-BKN
Napa, Black Nickel
H6852 ADAGIO-INSET-
NAPA-G
Napa, Gold
H6853 ADAGIO-INSET-
TUSCAN-BK
Tuscan, Black
H6854 ADAGIO-INSET-
TUSCAN-BN
Tuscan, Brushed Nickel
H6855 ADAGIO-INSET-
TUSCAN-BKN
Tuscan, Black Nickel
H6856 ADAGIO-INSET-
TUSCAN-G
Tuscan, Gold
ACCESSORY COMPONENTS CONTINUED
Bag of Glowing Embers
Replacement ember materials are available
for use with these appliances. Order a bag of
glowing embers, model FGE to replace ember
materials as part of the periodic maintenance
of the appliance.
Termination Guard Kits
(all models)
Cat. No. Model No. Description
17M52 SV4.5HGS-1 Termination Guard,
Square
87L02 SV4.5HGS Termination Guard,
Deluxe
H5820 4.5HTSK Termination Shroud
(Guard) for Horizontal
Square Termination
Square Termination
Guard
Deluxe Termination
Guard
Termination Guard Kits
The vent termination guards may be used to
cover the vent termination on the exterior of
the home. It provides a barrier to minimize
the possibility of direct contact with the hot
termination surface.
Barrier Screen Panel Kit
Cat. No. Model No. Description
H5777 ADAGIO-BSK Barrier Screen Panel
Barrier Screen Panel Kit
This easy to install optional screen panel installs
over the standard glass enclosure panel and
provides a barrier to prevent direct contact with
the hot glass surface.
Bag of Glowing Embers
Cat. No. Model No. Description
88L53 FGE Bag of Glowing Embers
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.
P
A
I
N
T
Touch-Up Paint Kits
(all models)
Cat. No. Model No. Description
90L73 FTPK-B Touch-Up Paint (Black)
Termination Shroud
Filigree Inset Kits
Theseattractivefiligreekitsareusedin conjunc-
tion with the arch facade kits.
Napa
Tuscan
Aspen
(ref. Form # 750,231M)
(ref. Form # 750,109M and 750,055M)
(ref. Form # 750,010M)
(ref. Form # 750,233M)
(ref. Form # 750,050M)

14 NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
WARRANTY
Yourgasapplianceiscoveredbya limitedtwenty
year warranty. You will find a copy of the war-
ranty 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 Hearth Products distributor or
dealer. Parts will be shipped at prevailing prices
at time of order.
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 ________________________________________________
With proper care and maintenance, your appli-
ance will provide many years of enjoyment. If
you should experience any problem, first refer
to the troubleshooting guide in this manual. If
problem persists, contact your Lennox Hearth
Products dealer or distributor.
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
Ifyouencounter anyproblemsorhaveanyques-
tions concerning the installation or application
of this system, please contact your dealer.
LENNOX HEARTH PRODUCTS
1110 West Taft Avenue
Orange, CA 92865
visit us at www.Lennox.com
WIRING DIAGRAMS
Wiring diagrams are provided here for reference purposes only. This information is also provided on schematics attached directly to the appliance
on a pullout panel located within the control compartment.
CAUTION: LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS. WIRING ERRORS CAN CAUSE IMPROPER AND DAN-
GEROUS APPLIANCE OPERATION.
Figure 16 Figure 17
TP-TH
TP
TH
APPLIANCE- MOUNTED
ON/OFF SWITCH
BK/W(1)
BK/W(1)
WALL-MOUNTED ON/OFF SWITCH (OPTIONAL)
THERMOSTAT (OPTIONAL)
JUNCTION BOX
BLACK
W
GR
120 V
AC
WALL MOUNTED CONFIGURATION FOR FAN SWITCH (OPTIONAL)
BK
R
WIRING DIAGRAM MILLIVOLT GAS VALVES
THERMOPILE
GAS VALVE
FAN
(OPTIONAL)
ELECTRONIC
WIRING DIAGRAM
JUNCTION BOX
BLK
W 120 V.
24 V.
TRANSF
ELECTRONIC IGNITION
CONTROL BOARD
*WALL MOUNTED ON/OFF SWITCH (OPTIONAL)
OR REMOTE CONTROL RECEIVER
APPLIANCE MOUNTED
ON/OFF SWITCH
PILOT BURNER
IGNITER-SENSOR
ASSEMBLY
GAS VALVE
EV2 EV1
GROUND
CONNECTOR
GREEN LED
WHITE (6)
)
0
2(E
T
IHW
)02(EGNA
R
O
BLACK (20)
)
9(
EL
P
R
UP
)
2
1
(
N
E
E
RG
BLUE (20)
BLACK (16)
WHITE
FIELD WIRED FACTORY WIRED
*Turn The Appliance-Mounted ON/OFF Burner Control Switch
To The OFF Position If An Optional Control Switch Is Installed
Optional
Blower
Ground

15
LIGHTING INSTRUCTIONS – SIT MILLIVOLT GAS VALVE
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
A. This appliance has a pilot which must be lighted with a piezo
igniter. 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.
LIGHTING INSTRUCTIONS
1. STOP! Read the safety information above on this Page.
2. Access the lower control compartment.
3. Turn unit-mounted OFF/ON switch or 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.”
• 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.
SIT
MILLIVOLT PILOT
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 igniter (pushing the button) until pilot
lights. Continue to hold the control knob in
for about 1 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.
SIT
MILLIVOLT
GAS VALVE
4. Depress gas control knob slightly and turn clockwise
to “OFF.” Do not force.
5. Close lower control compartment.
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
H
I
L
O
W
H
T
P
T
H
T
P
T
P
I
L
O
T
P
I
L
O
T
O
N
ti
O
F
F
IN OUT
OFF
ON
HI/LO Variable
Flame Height
Adjustment
Main Gas Control Knob
OFF/PILOT/ON
Piezo
Igniter
Standard Burner
OFF/ON Rocker
Switch

16 NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
INSTRUCTIONS D’ALLUMAGE – VANNE GAZ MILLIVOLT 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 à 8 inclusivement.
• Si le bouton ne sort pas
automatiquement après avoir été
relâché, arrêtez immédiatement et
téléphonez à votre technicien de
service ou à votre 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 à votre
technicien de service ou à votre
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 à la position “ON” ou régler le
thermostat à la 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 INSTRUCTIONSÀ 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.
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 à aucun 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
immergé dans 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 été sous l’eau.
1. ARRÊTEZ! Lisez les consignes de sécurité au verso de cette plaque.
2. Ouvrez le compartiment de contrôle du bas.
3. Tournez l’interrupteur mural à la 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 sécurité au verso de cette plaque. Si vous ne remarquez aucune
odeur de gaz, passez à l’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 à la position d’arrêt “OFF”. La veilleuse
restera allumée jusqu’au retour du service normal.
2. Pour une fermeture complète, tournez l’interrupteur mural à la
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
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OUT
IN
PIEZO-ELECTRIQUE
SIT
VANNE GAZ
MILLIVOLT
H
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W
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P
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P
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P
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ti
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F
F
IN OUT
OFF
ON
- LO / HI +
(Commande De
Taille De Flamme)
Bouton de contrôle
(Veilleuse / Ouverte / Fermée)
Allumeur
Interrupteur

17
NOTE: DIAGRAMS & ILLUSTRATIONS ARE 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"
or set the thermostat to the lowest setting, if applicable.
2. Turn the ON/OFF switch to “OFF”, if Step 1 is not applicable.
3. Close the main line shut-off valve.
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" or set the thermostat to
lowest setting, if applicable.
3. Turn the ON/OFF switch to "OFF" if Step 2 is applicable,
this ON/OFF switch should always be in the "OFF"
position.
4. Verify main line shut-off valve is open.
5. This appliance is equipped with an ignition device which
automatically lights the burner. Do Not try to light the
burner by hand.
6. Wait five (5) minutes to clear out any gas. If you then
smell gas, including near the floor, STOP! Follow "B" in
the safety information above on this page.
7. Turn "ON" all electrical power to appliance (remote wall
switch), or set the thermostat to the desired setting, if
applicable.
8. Turn the ON/OFF switch on the appliance to "ON", if
Step 7 is not applicable.
9. If the appliance will not operate, follow the instructions
"To Turn Off Gas To Appliance" and call your service
technician or gas supplier.
TO SHUT OFF
1. Turn off all electrical power to the appliance (remote wall
switch) or set the thermostat to the lowest setting, if
applicable.
HI
LO
Gas Valve
WARNING: IF YOU DO NOT FOLLOW THESE INSTRUCTIONS EXACTLY, A FIRE OR EXPLOSION
MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE.
HI
LO
OFF
ON
HI
LO
OFF
ON
SIT
ELECTRONIC
GAS VALVE
HI/LO Variable
Flame Height
Adjustment
StandardBurner
OFF/ON Rocker
Switch

18 NOTE: DIAGRAMS & ILLUSTRATIONS ARE 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 à aucun 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 linterrupteur“ON/
OFF” de la valve à gaz. 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
immergé dans l’eau. Appelez immédiatement un technicien
compétent pour faire inspecter l’appareil et remplacer toute
piècedusystèmederéglageoucommandedugazquiaétésous
l’eau.
1. ARRÊTEZ ! Lisez les consignes de sécurité au verso de cette
plaque.
2. Tournez l’interrupteur mural à la position d’arrêt “OFF” ou plaez
le thermostat àplssible, si requis.
3. Tournez l’interrupteur "marche/arrêt" àlaposition"arrêt" (Off) si
l'etape 2 est appropriee. Cet interrupteur "marche/arrêt" devrait
toujours être en position "arrêt" (Off).
4. Assurez-vousquelasoupaped"arrêt"delacanalisationprincipale
est ouverte.
5. Cet appareil est êquipê d'un dispositif d'allumage qui allume
automatiquementlebruleur. N'essayezpas d'allumer le bruleur
à la main.
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 sécurité au verso de cette plaque. Si vous ne
remarquez aucune odeur de gaz, passez à l’étape suivante.
7. Tournez l'interrupteur mural à distance à la position "marche"
(On)ouplacezlethermostatàlatemperaturedésarée,sirequis.
8. Tournez l'interupteur "marche/arrét" de l'appareil à la
position "marche" (On), si aucune odeur de gaz n a été
détectée à l'étape 6.
9. 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. Coupez tout le courant électrique qui alimente l’appareil
(interrupteur mural) ou placez le thermostat àla plus basse
température, si requis.
POUR FERMER LE GAZ QUI ALIMENTE L’APPAREIL
3. Fermez la soupape d’arrêt de la canalisation principale.
1. Pour une fermeture complète, tournez l’interrupteur mural à la
position d’arrêt “OFF”.
2. Tournez la manette de réglage du gaz à la position d’arrêt “OFF”.
Ne la forcez pas.
HI
LO
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.
HI
LO
OFF
ON
Pilot
Adjustment
Screw
HI
LO
OFF
ON
SIT
VANNE GAZ
ELECTRONIC
- LO / HI +
(Commande De
Taille De Flamme) Interrupteur

19
TROUBLESHOOTING GUIDE - MILLIVOLT GAS CONTROL SYSTEM
Note: Before troubleshooting the gas control system, Ensure external gas shut off valve, located at gas supply inlet, (and wall switch, iff applicable), is
in the “ON” position.
Important: Valve system troubleshooting should only be accomplished by a qualified service technician.
SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION
1. Spark igniter will not light pilot after
repeated triggering of igniter button.
WARNING: if the pilot will not light
after 1 minute of attempting, wait
for at least 5 minutes for gas to
clear before attempting again.
A. Defective igniter
(no spark at electrode).
Check for spark at electrode and pilot; if no spark
and electrode wire is properly connected, replace
igniter.
B. Defective or misaligned electrode at pilot
(spark at electrode).
Using a match, light pilot. If pilot lights, turn off pilot
and trigger the igniter 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 (see Figures 14 or 15 on Page 11).
C. Gas supply pressure errant. Check inlet gas pressure. It should be within the limits
as marked on the rating plate.
D. Pilot orifice plugged. Clean or replace pilot orifice.
2. Pilot will not stay lit after
carefully following the lighting
instructions.
A. Defective pilot generator
(thermocouple)
Check pilot flame, it must impinge on thermocouple
(see Figures 14 or 15 on Page 11). Clean and/or
adjust pilot for maximum flame impingement on
thermocouple. Ensure that the connection between
the valve and thermocouple are tight and secure.
3. Pilot burning, no gas to burner, Valve
knob “ON,” and the (standard) burner
OFF/ON switch is “ON." Read impor-
tant note below.
IMPORTANT NOTE: If an optional
*remote switch is used for burner
operation, if the standard burner
OFF/ON switch is still installed on
appliance it must be in the "OFF"
position.
*Optional remote switch kits - wall
switch, wall thermostat or remote
control.
A. Wall switch or wires defective. Check wall switch and wires for proper connections.
Jumper wire across terminals at wall switch, if burner
comeson,replacedefectivewallswitch.Ifokay,jumper
wiresacrosswallswitchwiresatvalve,if burnercomes
on, wires are faulty or connections are bad.
B. Thermopile may not be generating suf-
ficient millivolts.
Check thermopile with millivolt meter. Take reading
at thermopile terminals of gas valve. Should read
325 millivolts minimum with optional wall switch
“OFF.” Replace faulty thermopile if reading is below
specified minimum.
C. Plugged burner orifice. Check burner orifice for blockage and remove.
D. OFF/ON Switch & *Remote Switch are in
the "ON" position resulting in excessive
resistance.
When turning on the burner using a *remote switch,
ensure that the standard OFF/ON switch is in the "OFF"
position. If both switches are in the ON position, it
may result in excessive resistance (& millivolt drain-
age) and the burner may not come on.
4. Frequent pilot/burner outage prob-
lem.
A. Pilot flame may be too low or blowing
(high) causing the pilot/valve safety to drop
out.
Clean and/or adjust pilot flame for maximum flame
impingement on thermocouple (see Figures 14 or
15 on Page 11).

20
SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION
1. Nothing happens when ON/OFF switch is
turned on (pilot does not spark).
A. Low voltage/or bad lead wires. Check voltage on AC terminals of module. The value
should be around 24 VAC. Confirm that wire con-
nections are secure.
B. Damaged igniter wire. Check for visible cracked casing, cuts, etc.
C. Damaged pilot assembly. Check pilot assembly for visibly broken spark elec-
trode, etc.
D. On/Off switch defective Check switch and connections. Replace switch, if
necessary.
2. The main burner does not light and the
igniter is sparking.
A. No fuel supply. Ensure that the gas supply is turned on.
B. Loose sensor wire. Ensure sensor wire connection is secure to purple
wire of ignition control.
C. Loose wires to valve. Ensure blue and white (2) wires connection is secure
to valve.
D. Air in the gas line. Purge gas line of air.
E. Low voltage. Test voltage at AC terminals of module for 24 VAC.
If no voltage, replace module.
Check electricalconnectionsbetweenmoduleandgas
control. If okay, replace gas control (valve).
3. The main burner come "ON" but then go
"OFF".
A. Gas supply is turned "OFF". Turned gas supply to "ON".
B. Loose wire connection on valve or
ignition module.
Check wire connection.
C. Flame does not engulf flame sensor. Check location of sensor.
D. Obstructed vent system. Check vent system for obstructions.
4. The log and glass soot. A. Flame impingement on the log. Check for proper log placement.
B. Improper air shutter opening. Check for proper air shutter openings.
TROUBLESHOOTING GUIDE - ELECTRONIC GAS CONTROL SYSTEM
Note: Before troubleshooting the gas control system, Ensure external gas shut off valve, located at gas supply inlet, (and wall switch, iff applicable), is
in the “ON” position.
Important: Valve system troubleshooting should only be accomplished by a qualified service technician.