INSTALLATION INSTRUCTIONS
TM
Direct-Vent
MONTEBELLO™
P/N 850,026M REV. E 03/2010
MODELS
Portland
OTL Report No. 116-F-22-5
Millivolt Models
Electronic Models
LSM40EN-2
US
LSM40MN-2
LSM40MP-2
LSM45MN-2
LSM45MP-2
LSM45EN-2
Ce manuel d’installation est disponible en francais, s implement en faire
la demande. Numéro de la pièce 850,026CF.
WARNING AVERTISSEMENT
HOT GLASS WILL
CAUSE BURNS.
UNE SURFACE VITR E CHAUDE PEUT
CAUSER DES BR LURES.
DO NOT TOUCH GLASS
UNTIL COOLED.
LAISSER REFROIDIR LA SURFACE
VITR E AVANT D'Y TOUCHER.
NEVER ALLOW CHILDREN TO
TOUCH GLASS.
NE PERMETTEZ JAMAIS UN ENFANT
DE TOUCHER LA SURFACE VITR E.
This appliance may be installed in an aftermarket permanently located, manufactured home (USA only) or mobile
home, where not prohibited by local codes. This appliance is only for use with the type of gas indicated on the rating
plate. This appliance is not convertible for use with other gases, unless a certified kit is used.
WARNING: If the information in these instructions is
not followed exactly, a fire or explosion may result
causing property damage, personal injury or death.
AVERTISSEMENT: Assurez-vous de bien suivre les
instructions données dans cette notice pour réduire
au minimum le risque d’incindie ou d’explosion ou
pour éviter tout dommage matériel, toute blessure
ou la mort.
- Donotstoreorusegasolineorotherflammablevaporsand
liquids in the vicinity of this or any other appliance.
- Ne pas entreposer ni utilizer d’essence ni d’autres
vapeurs ou liquides inflammables dans le voisinage
de cet appareil ou de tout autre appareil.
- WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any
phone in your building.
- QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:
• Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire
department.
- Installation and service must be performed by a quali-
fied installer, service agency or the gas supplier.
• Ne pas tenter d’allumer d’appareil.
• Ne touchez à aucan interrupteur. Ne pas vous servir
des téléphones se trouvant dans le bâtiment où vous
trouvez.
• Appelez immédiatement votre fournisseur de gaz
depuis un voisin. Suivez les instructions du fournis-
seur.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
• Si vous ne pouvez rejoindre le fournisseur de gaz,
appelez le service des incindies.
- L’installation et l’entretien doivent être assurés par un
installateur ou un service d’entretien qualifié ou par
le fournisseur de gaz.
INSTALLATEUR: Laissez cette notice avec l'appareil.
CONSOMMATEUR: Conservez cette notice pour consul-
tation ultérieure.
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Note: Installation and repair should be done
by a qualified service person. The appliance
should be inspected before use and at least
annually by a professional service person.
More frequent cleaning may be required
due to excessive lint from carpeting, bed-
ding material, etcetera. It is imperative
that control compartments, burners and
circulating air passageways of the appliance
be kept clean.
The.appliance,.when.installed,.must.be.electri-
cally.grounded.in.accordance.with.local.codes.or,.
in.the.absence.of.local.codes,.with.the.National
Electrical Code, ANSI/NFPA 70 - latest edition,.
or. the. Canadian Electrical Code, CSA C22.1
- latest edition.
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.
Provide.adequate.clearances.around.air.open-
ings.and.adequate.accessibility.clearance.for.
service.and.proper.operation..Never.obstruct.
the.front.openings.of.the.appliance.
Remarque : L’installation et la réparation
devraitêtreconfiéesàuntechnicienqualifié.
L’appareil devrait faire l’objet d’une inspec-
tion par un technicien professionnel avant
d’être utilisé et au moins une fois l’an par la
suite. Desnettoyagesplusfréquentspeuvent
être nécessaires si les tapis, la literie, et
ceteraproduisentunequantitéimportantede
pous-sière. Il est essentiel que les comparti-
mentsabritantlescommandes,lesbrûleurset
les conduits de circulation d’air de l’appareil
soient tenus propres.
These appliances are designed to operate on
natural or propane gas only. The use of other
fuels or combination of fuels will degrade
the performance of this system and may be
dangerous.
WARNING
Failure to comply with these
installationinstructionswillresult
in an improperly installed and
operating appliance, voiding its
warranty. Anychangetothisappli-
anceand/oritsoperatingcontrols
is dangerous.
These.fireplaces.are.designed.as.supplemental.
heaters.. Therefore,. it. is. advisable. to. have. an.
alternate. primary. heat. source. when. installed.
in.a.dwelling.
Millivolt Models - The.millivolt.appliances.are.
manually.controlled.and.feature.a.spark.igniter.
(piezo).that.allows.the.appliance's.pilot.gas.to.be.
lit.without.the.use.of.matches.or.batteries...This.
system.provides.continued.service.in.the.event.
of.a.power.outage.
Do not use these appliances if any part
has been under water. Immediately call a
qualified, 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.
WARNING
Clothing or other flammable
material should not be placed
on or near the appliance.
The. Millivolt. models. come. standard. with. the.
manually-modulated.gas.valve;.flame.appear-
ance.and.heat.output.can.be.controlled.at.the.
gas.valve..The.BTU.Input.for.these.appliances.
is.shown.in.Table 1.
Ne pas se servir de cet appareil s'il a été
plongé dans l'eau, complètement ou en
partie. Appeler un technicien qualifié pour
inspecterl'appareiletremplacertoutepartie
du système de contrôle et toute commande
qui ont été plongés dans l'eau.
AVERTISSEMENT
Electronic Models - The. electronic. appli-
ances.are.manually.controlled.and.feature.an.
electronic. intermittent. pilot. ignition. system..
External.electrical.power.is.required.to.operate.
these.units.
On ne devrait pas placer de
vêtements ni d’autres matières
inflammables sur l’appareil ni à
proximité.
Only trim kit(s) supplied by the manufacturer
shall be used in the installation of this ap-
pliance.
Electronic.models.come.standard.with.a.manu-
ally-modulated. gas. valve;. flame. appearance.
and.heat.output.can.be.controlled.at.the.gas.
valve..The.BTU.Input.for.these.appliances.is.
shown.in.Table 1.
Seules les trousses de garniture fournies
par le fabricant doivent être utilisées pour
l’installation de cet appareil.
WARNING
Any safety screen or guard
removed for servicing the appli-
ance must be replaced prior to
operating the appliance.
These.appliances.comply.with.National.Safety.
Standards.and.are.tested.and.listed.by.OMNI-
Test.Laboratories,.Inc..(Report.No..116-F-22-5).
to. ANSI. Z21.50. (in. Canada,. CSA-2.22),. and.
CAN/CGA-2.17-M91.in.both.USA.and.Canada,.
as.vented.gas.fireplaces.
Input (BTU/HR) - All Models
Model No.
Input (BTU/Hr)
AVERTISSEMENT
Natural Gas
LSM40-2
LSM45-2
40,000 to 50,000
47,000 to 60,000
Tout écran ou protecteur retiré
pour permettre l’entretien de
l’appareil doit être remis en
place avant de mettre l’appareil
en marche.
Both millivolt and electronic versions of
these appliances are listed by OMNI-Test
Laboratories for installation in bedrooms and
mobile homes.
Propane Gas
LSM40-2
LSM45-2
40,000 to 50,000
48,000 to 60,000
Misc. Codes / Standards -
Table 1
The.Installation.must.conform.to.local.codes..
In.the.absence.of.local.codes,.installation.must.
comply.with.the.currentNationalFuelGasCode,
ANSIZ223.1..(In.Canada,.the.current.CAN/CSA-
B149.1 installation code)..
WARNING
Improper installation or use of
thisappliancecancauseserious
injury or death from fire, burns,
explosion or carbon monoxide
poisoning.
3
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Gas Pressure - All Models
Orifice Sizes - Sea Level To High Altitude
(All Models)
Gas Supply Inlet
Tables 2 and 3 show.the.appliances'.inlet.and.
manifold.gas.pressure.requirements:
These.appliances.are.tested.and.approved.for.
installation.at.elevations.of.0-4500.feet.(0-1372.
meters). above. sea. level,. using. the. standard.
burner.orifice.sizes.(marked.with.an."*".in.Table
4)...For.elevations.above.4500.feet,.contact.your.
gas.supplier.or.qualified.service.technician.
Inlet Pressure
Gauge Port
Inlet Gas Supply Pressure
(all models)
Hi / Lo
Variable Flame
Height
Fuel #
Minimum
Maximum
Adjustment
5.5" WC
(1.37 kPa)
10.5" WC
(2.61 kPa)
Natural Gas
Deration -. At. higher. elevations,. the. amount.
of.BTU.fuel.value.delivered.must.be.reduced.
by.either:
•.. Using.gas.that.has.been.derated.by.the.gas.
company..
•.. Changing.the.burner.orifice.to.a.smaller.size.
as.regulated.by.the.local.authorities.having.
jurisdiction.and.by.the.(USA).National.Fuel.
Gas. Code. NFPA. 54/ANSI. Z223.1. -. latest.
edition.or,.in.Canada,.the.CAN/CSA-B149.1.
codes.-.latest.edition.
11.0" WC
(2.74 kPa)
13.0" WC
(3.23 kPa)
Manifold
Pressure
Gauge Port
Propane
Table 2
Pilot
Adjustment
Screw
Manifold Gas Supply Pressure
(all models)
Gas Outlet to Burner
Fuel #
Low
High
Figure 2 - SIT Electronic Gas Valve
Natural (Lo) 2.2" WC
(Hi) 3.5" WC
(.87 kPa)
Gas
(.55 kPa)
Install.the.appliance.according.to.the.regulations.
of.the.local.authorities.having.jurisdiction.and,.
in.the.USA,.the.National.Fuel.Gas.Code.NFPA.
54./.ANSI.Z223.1.-.latest.edition.or.,.in.Canada,.
the.CAN/CSA-B149.1-.latest.edition.
REQUIREMENTS FOR THE COMMON-
WEALTH OF MASSACHUSETTS
(Lo) 6.3" WC (Hi) 10.0" WC
(1.57 kPa) (2.49 kPa)
Propane
Table 3
These.fireplaces.are.approved.for.installation.in.
the.US.state.of.Massachusetts.if.the.following.
additional.requirements.are.met:
•. Install. this. appliance. in. accordance. with.
Massachusetts.Rules.and.Regulations.248.
C.M.R..
•. Installation.and.repair.must.be.done.by.a.
plumber.or.gas.fitter.licensed.in.the.Com-
monwealth.of.Massachusetts.
•. The.flexible.gas.line.connector.used.shall.
not.exceed.36.inches.(92.centimeters).in.
length.
•. The.individual.manual.shut-off.must.be.a.
T-handle.type.valve.
NOTE: Flame appearance will diminish 4% per
thousand feet.
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)...
Burner Orifice Sizes
Elevation 0-4500 feet ( 0-1372 meters)
Model
Nat.Gas
Propane
Propane.tanks.are.at.pressures.that.will.cause.
damage.to.valve.components...Verify.that.the.
tanks.have.step.down.regulators.to.reduce.the.
pressure.to.safe.levels.
drill size (inches)
drill size (inches)
LSM40-2 .1405" (#28)* .086" (#44)*
• H2286
• H2287
LSM45-2 .161" (#20)*
.093" (#42)*
• H2288
• H4816
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).
* Standard size installed at factory
• Part /Cat. Number
Massachusetts Horizontal Vent Requirements
Table 4
In the Commonwealth of Massachusetts,
horizontal terminations installed less than
seven (7) feet above the finished grade
must comply with the following additional
requirements:
Gas Valve Diagrams
See.Figure 1.for.Millivolt.models.and Figure 2.
For.Electronic.Models.
These.appliances.and.their.individual.shut-off.
valves.must.be.disconnected.from.the.gas.
supply.piping.system.during.any.pressure.
testing.of.that.system.at.pressures.greater
than.1/2.psig.(3.5.kPa).
•. A. hard. wired. carbon. monoxide. detector.
with.an.alarm.and.battery.back-up.must.be.
installed.on.the.floor.level.where.the.gas.
fireplace.is.installed...The.carbon.monoxide.
detector.must.comply.with.NFPA.720,.be.
ANSI/UL.2034.listed.and.be.ISA.certified.
•. A.metal.or.plastic.identification.plate.must.
be.permanently.mounted.to.the.exterior.of.
the.building.at.a.minimum.height.of.eight.(8).
feet.above.grade.and.be.directly.in.line.with.
the.horizontal.termination...The.sign.must.
read,.in.print.size.no.less.than.one-half.(1/2).
inch.in.size,.GAS.VENT.DIRECTLY.BELOW..
KEEP.CLEAR.OF.ALL.OBSTRUCTIONS.
Gas Supply Inlet
Inlet Pressure
Gauge Port
Main Gas
Control Knob
Off / Pilot / On
O
I
T
P
O
F
O
F
ti
These.appliances.must.not.be.connected.to.a.
chimney.or.flue.serving.a.separate.solid.fuel.
burning.appliance.
Manifold
Pressure
Gauge Port
H
W
I
O
L
I
Hi / Lo
Variable Flame
Pilot
Adjustment
Screw
NEW YORK CITY, NEW YORK (MEA)
Height Adjustment
TPTH
TP
TH
Installation.of.these.fireplaces.are.approved.for.
installation.in.New.York.City.in.the.US.state.
of.New.York.
Gas Outlet to Burner
Figure 1 - SIT Millivolt Gas Valve
NOTE:.DIAGRAMS.&.ILLUSTRATIONS.ARE.NOT.TO.SCALE.
4
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COLD CLIMATE INSULATION
For.cold.climate.installations,.seal.all.cracks.
around. your. appliance. with. noncombustible.
material. and. wherever. cold. air. could. enter.
the.room..It.is.especially.important.to.insulate.
outside.chase.cavity.between.studs.and.under.
floor.on.which.appliance.rests,.if.floor.is.above.
ground.level...Gas.line.holes.and.other.open-
ings.should.be.caulked.or.stuffed.with.unfaced.
fiberglass.insulation...
Room Divider
Application
Recessed
Application
Drywall
If.the.fireplace.is.being.installed.on.a.cement.
slab.in.cold.climates,.a.sheet.of.plywood.or.
other.raised.platform.can.be.placed.underneath.
to.prevent.cold.transfer.to.the.fireplace.and.into.
the. room... It. also. helps. to. sheetrock. inside.
surfaces.and.tape.for.maximum.air.tightness.
and.caulk.firestops.
MANUFACTURED HOME
REQUIREMENTS
Top Of Fireplace
Opening
Non-Combustible
This.appliance.may.be.installed.in.an.aftermar-
ket.permanently.located,.manufactured.home.
and.must.be.installed.in.accordance.with.the.
manufacturer's.instructions.and.the.Manufac-
tured.Home.Construction.and.Safety.Standard,.
Title.24.CFR,.Part.3280,.in.the.United.States,.or.
the.Standard.for.Installation.in.Mobile.Homes,.
CAN/CSA.Z240.MH.Series,.in.Canada..
Whentheunitisinstalledwithonesideflushwithawall,
the wall on the other side of the unit must not extend
beyond the front edge of the unit.
VERTICAL VENT
HORIZONTAL VENT
Figure 3 - Typical Installation
Be aware that this is a heat producing ap-
pliance. Objects placed above the unit are
exposed to elevated temperatures.
LOCATION
Cet.appareil.peut.être.installé.cómme.du.matéri-
el.d'origine.dans.une.maison.préfabriquée.(É.U..
seulement).ou.mobile.et.doit.être.installé.selon.
les.instructions.du.fabricant.et.conformément.
à.la.norme.Manufactured.Home.Constructions.
and.Safety,.Title.24.CFR,.Part.3200.aux.Unis.ou.
à.la.norme.Can/CSA-Z240.Série.MM,.Maisons.
mobiles.au.Canada..
In. selecting. the. location,. the. aesthetic. and.
functional. use. of. the. appliance. are. primary.
concerns.. However,. vent. system. routing. to.
the.exterior.and.access.to.the.fuel.supply.are.
also.important...
Do not insulate the space between the ap-
pliance and the area above it.(see.Figure 8
on Page 8)..
Due to high temperatures, the appliance
should be located out of traffic and away from
furniture and draperies (Figure 3).
The.minimum.height.from.the.base.of.the.appli-
ance.to.the.underside.of.combustible.materials.
used.to.construct.a.utility.shelf.in.this.fashion.
is.shown.in.Figure 8 on Page 8...
This.appliance.is.only.for.use.with.the.type.of.gas.
indicated.on.the.rating.plate...This.appliance.is.
not.convertible.for.use.with.other.gases,.unless.
a.certified.kit.is.used.
Enraisondestempératuresélevées,l’appareil
devrait être installé dans un endroit où il y a
peu de circulation et loin du mobilier et des
tentures (Figure 3).
The.appliance.should.be.mounted.on.a.fully.
supported.base.extending.the.full.width.and.
depth.of.the.unit..The.appliance.may.be.located.
on.or.near.conventional.construction.materials..
However,.if.installed.on.combustible.materials,.
such.as.carpeting,.vinyl.tile,.etc.,.a.metal.or.
wood.barrier.covering.the.entire.bottom.surface.
must.be.used.
Cet.appareil.doit.être.utilisé.uniquement.avec.le.
type.de.gaz.indiqué.sur.la.plaque.signalétique..
Cet.appareil.ne.peut.être.converti.à.d'autres.gaz,.
sauf.si.une.trousse.de.conversion.est.utilisée.
The.location.should.also.be.free.of.electrical,.
plumbing. or. other. heating/air. conditioning.
ducting.
These. direct-vent. appliances. are. uniquely.
suited.for.installations.requiring.a.utility.shelf.
positioned.directly.above.the.fireplace..Utility.
shelves.like.these.are.commonly.used.for.locat-
ing.television.sets.and.decorative.plants.
CAUTION: Ensure that the cross members
are not cut or weakened during installation.
The structural integrity of the manufactured
home floor, wall, and ceiling / roof must be
maintained.
CAUTION: This appliance must be grounded
to the chassis of the manufactured home in
accordance with local codes or in the absence
of local codes, with the National Electrical
Code ANSI / NFPA 70 - latest edition or the
Canadian Electrical Code CSA C22.1 - latest
edition.
NOTE:.DIAGRAMS.&.ILLUSTRATIONS.ARE.NOT.TO.SCALE.
5
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VENT TERMINATION CLEARANCES
Vertical Vent Termination Clearances
These instructions should be used as a
guideline and do not supersede local codes
in any way. Install vent according to local
codes,theseinstructions,thecurrentNational
Fuel Gas Code (ANSI-Z223.1) in the USA or
the current standards of CAN/CSA-B149.1 in
Canada.
Termination Heights For Vents
Above Flat Or Sloped Roofs
Ref. NFPA 54 / ANSI Z223.1
TERMINATION HEIGHTS FOR VENTS ABOVE
FLAT OR SLOPED ROOFS
Horizontal Overhang
Roof Pitch
Flat.to.6/12
* Feet
1.0
*Meters
0.3
2 FT
MIN.
Vertical
Wall
2 FT MIN.
Lowest
Discharge
Opening
6/12.to.7/12
1.25
1.5
0.38
0.46
0.61
0.76
0.99
1.22
1.52
1.83
2.13
2.29
2.44
Vent
Termination
7/12.to.8/12
H*
Vertical Vent Termination Clearances
8/12.to.9/12
2.0
Storm Collar
Flashing
x
9/12.to.10/12
10/12.to.11/12
11/12.to.12/12
12/12.to.14/12
14/12.to.16/12
16/12.to.18/12
18/12.to.20/12
20/12.to.21/12
2.5
12
Terminate.multiple.vent.terminations.according.
to.the.installation.codes.listed.above..Also.see.
Figure 4.
Roof Pitch is x/12
3.25
4.0
1 inch (25.4 mm) Minimum
Clearance to Combustibles
5.0
Concentric
Vent Pipe
*H = MINIMUM HEIGHT FROM ROOF TO
LOWEST DISCHARGE OPENING OF VENT
Terminate.single..vent.caps.relative.to.building.
components.according.to.Figure 5.
6.0
The.vent./.air.intake.termination.clearances.
above.the.high.side.of.an.angled.roof.is.as.
shown.in.the.following.chart:
7.0
7.5
8.0
Figure 5
12”
(305mm)
Minimum
Horizontal Vent Termination Clearances
The.horizontal.vent.termination.must.have.a.minimum.of.3".(76.mm).clearance.to.any.overhead.
combustible.projection.of.2-1/2".(64.mm).or.less.(see..Figure 6). .For.projections.exceeding.2-1/2".
(64.mm),.see.Figure 7..For.additional.vent.location.restrictions.refer.to.Figure 7 on Page 7.
Figure 4 - Multiple Terminations
Horizontal Vent Termination Clearances
Combustible Projection
2-1/2 inches or less in length
Combustible Projection
greater than 2-1/2 inches in length
Ventilated Or
Unventilated Soffit
SeeFigure30onPage18 fortherecessallowances,into
exterior walls, of the square horizontal terminations.
3"
(76 mm)
24"
(610 mm)
Termination Kit
Figure 6 - Side Elevation View
NOTE:.DIAGRAMS.&.ILLUSTRATIONS.ARE.NOT.TO.SCALE.
6
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ExTERIOR HORIZONTAL VENT TERMINATION CLEARANCE REQUIREMENTS
* SeeItemD intheTextBelow.
Center Line
NOTE: Local Codes Or Regulations May Require
Different Clearances.
Exterior Wall
Inside
ofTermination
CornerDetail
NOTE: Location Of The Vent Termination Must Not
Interfere With Access To The Electrical Service.
*18”
24"
Horizontal
G
Termination
36"
V
VentilatedSoffit
A
InsideCorner
= 9" in U.S.
= 12" in Canada
�
A
DETAILD
H
3 ft.
B
B
B
E
D
X
C
C
�
A
V
�
A
V
Fixed
Operable
Window
V
L
V
Closed
3 ft.
Window
V
F
J
M
V
C
B
B
C
X
V
I
A
K
X
= Air Supply Inlet
= Vent Terminal
= Area where Terminal is NOT permitted
V
Minimum Clearances
Canadian Installation *
US Installation **
A.=.Clearance.above.grade,.veranda,.porch,.deck. 12.inches.(30.cm).*
12.inches.(30.cm).**
or.balcony.
B. =. Clearance. to. window. or. door. that. may. be. 6.in..(15.2.cm).for.appliances.<.10,000.BTU/hr.(3kW),.
6.in..(15.2.cm).for.appliances.<.10,000.BTU/hr.(3kW),.
opened.
12.in..(30.cm).for.appliances.>.10,000.BTU/hr.(3kW).and.<. 9.in..(23.cm).for.appliances.>.10,000.BTU/hr.(3kW).and.<.
100,000.BTU/hr.(30kW),..36.inches.(91.cm).for.appliances. 50,000.BTU/hr.(15kW),..12.inches.(30.cm).for.appliances.
>.100,000.BTU/hr.(30kW)*
>.50,000.BTU/hr.(15kW)*
C.=.Clearance.to.permanently.closed.window
12. inches. (305. mm). recommended. to. prevent. window. 9.inches.(229.mm).recommended.to.prevent.window.
condensation
condensation
D.=.Vertical.clearance.to.ventilated.soffit.located. 24.inches.(61.0.cm)
above.the.terminal.within.a.horizontal.distance.of..36.
24.inches.(61.0.cm)
in..(91.4cm).from.the.center.line.of.the.terminal
E.=.Clearance.to.unventilated.soffit
F.=.Clearance.to.outside.corner
G.=.Clearance.to.inside.corner
24.inches.(61.0.cm)
5.inches.(12.7.cm)
36".(91.4.cm)
24.inches.(61.0.cm)
5.inches.(12.7.cm)
24.inches.(61.0.cm)
H.=.Clearance.to.each.inside.of.center.line.extended. 3.feet.(91.cm).within.a.height.of.15.feet.above.the.meter./. 3.feet.(91.cm).within.a.height.of.15.feet.above.the.meter.
above.meter./.regulator.assembly
regulator.assembly.*
/.regulator.assembly.**
I.=.Clearance.to.service.regulator.vent.outlet
3.feet.(91.cm).*
3.feet.(91.cm).**
J. =. Clearance. to. non-mechanical. air. supply. inlet. 6.in..(15.2.cm).for.appliances.<.10,000.BTU/hr.(3kW),.12. 6.in..(15.2.cm).for.appliances.<.10,000.BTU/hr.(3kW),.9.
to.building.or.the.combustion.air.inlet.to.any.other. in..(30.cm).for.appliances.>.10,000.BTU/hr.(3kW).and.<. in..(23.cm).for.appliances.>.10,000.BTU/hr.(3kW).and.<.
appliance
100,000.BTU/hr.(30kW),..36.inches.(91.cm).for.appliances. 50,000.BTU/hr.(15kW),..12.inches.(30.cm).for.appliances.
>.100,000.BTU/hr.(30kW)*
>.50,000.BTU/hr.(15kW)*
K.=.Clearance.to.mechanical.air.supply.inlet
6.feet.(1.83.meters).*
3.feet.(91.cm).above,.if.within.10.feet.(3.m).horizon-
tally**
L. =. Clearance. above. paved. sidewalk. or. paved. 7.feet.(2.13.m).‡
7.feet.(2.13.m).‡
driveway.located.on.public.property
M. =. Clearance. under. veranda,. porch,. deck. or. 18.in..(46.0.cm).*.‡
18.in..(46.0.cm).**.‡
balcony
*.In.accordance.with.the.current.CSA-B149.1.National.Gas.and.B149.2.Propane.Installation.Code.-.Latest.Editions.
**.In.accordance.with.the.current.ANSI.Z223.1./.NFPA.54.National.Fuel.Codes.-.Latest.Edition.
‡.A.vent.shall.not.terminate.directly.above.a.sidewalk.or.paved.driveway.which.is.located.between.two.single.family.dwellings.and.serves.both.dwellings.
*‡.Only.permitted.if.veranda,.porch,.deck.or.balcony.is.fully.open.on.a.minimum.2.sides.beneath.the.floor.
Figure 7
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MINIMUM CLEARANCES TO COMBUSTIBLES
Combustible Shelf Height - Inches (millimeters)
The.appliance.is.approved.with.zero.clearance.to.combustible.materials.on.
all.sides.(as.detailed.in.Table 5),.with.the.following.exception:.When the
unit is installed with one side flush with a wall, the wall on the other
side of the unit must not extend beyond the front edge of the unit..In.
addition,.when.the.unit.is.recessed,.the.side.walls.surrounding.the.unit.
must.not.extend.beyond.the.front.edge.of.the.unit.(see.Figure 3).
Top Vent - with 2 Feet Vertical Vent and One 90 Degree Elbow
Model
Secure Vent
*84-1/16 (2135)
89-1/16 (2252)
LSM40-2
LSM45-2
* Includes 3” clearance to combustibles (required above vent components)
APPLIANCE MINIMUM CLEARANCES*
Inches (millimeters)
Do not insulate the
space between the
appliance and the
area above it.
Sides
1/2 (13), 0 (0) Spacers **
Top Spacers
0 (0)
0 (0)
Floor
Back
Bottom of Appliance To Ceiling
Vent
1/2 (13), 0 (0) Spacers
69 (1743)
2 Foot Vertical
Vent (Min.)
Shelf Height
(see table)
3 (76) Top* / 1 (25.4)Sides & Bottom
SERVICE CLEARANCES Feet (meters)
Front
3 feet (0.9 meters)
Shelf Above Fireplace With Top Venting
Figure 8
Table 5
*Note: 3 in. (75 mm) above any horizontal/inclined vent component.
12 (305) MANTEL
MANTEL
CLEARANCES
Inches (mm)
10 (254) MANTEL
**Note: See Page 9, Step 1 for clearance requirements to the nailing
flange located at each side of the unit and any screw heads adjacent
to it.
MANTEL
8 (203)
6 (152)
4 (102)
2 (51)
17
MANTEL
MANTEL
(432)
15
The.appliance.should.be.mounted.on.a.fully.supported.base.extending.
the.full.width.and.depth.of.the.unit..The.appliance.may.be.located.on.
or. near. conventional. construction. materials.. However,. if. installed. on.
combustible.materials,.such.as.carpeting,.vinyl.tile,.etc.,.a.metal.or.wood.
barrier.covering.the.entire.bottom.surface.must.be.used.
(381)
13
(330)
11
(279)
MANTEL
9
(229)
7
(178)
Fireplace
Shelf Height
(side view)
Top of Appliance
Figure 9
To.provide.for.the.lowest.possible.shelf.surface,.the.venting.attached.to.
the.top.vent.should.be.routed.in.a.way.to.minimize.obstructions.to.the.
space.above.the.appliance...Do.not.insulate.the.space.between.the.ap-
pliance.and.the.area.above.it.(see.Figure 8)..The.minimum.height.from.
the.base.of.the.appliance.to.the.underside.of.combustible.materials.used.
to.construct.a.utility.shelf.in.this.fashion.is.shown.in.Figure 8.
Combustible Materials
Allowed In Shaded Area
"Safe Zone"
Top View of
Fireplace
Wall Finishes / Surrounds / Mantels
12"
Note: Combustible wall finish materials and/or surround materials must
not be allowed to encroach the area defined by the appliance front face
(black sheet metal). Never allow combustible materials to be positioned
in front of or overlapping the appliance face. See Figure 10 and Figure
53 on Page 28.
5"
45°
17"
Non-combustible.materials,.such.as.surrounds.and.other.appliance.trim,.
may.be.installed.on.the.appliance.front.face.with.these.exceptions:.they.
must.not.cover.any.portion.of.the.removable.glass.panel.
Minimum Distance to
Protected Side Wall
8-1/4”
Side
Wall
Vertical.installation.clearances.to.combustible.mantels.vary.according.
to.the.depth.of.the.mantel...See.Figure 9..Mantels.constructed.of.non-
combustible.materials.may.be.installed.at.any.height.above.the.appliance.
opening.
Side
Wall
Minimum Distance to
Unprotected Side Wall
14"
NOTE: We recommend the use of high temperature paint (rated 175° F
or higher) on the underside of the mantel.
Figure 10
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Step 3...(Page 12).Install.the.vent.system.and.
exterior.termination...
Step 4. (Page 21) Field.Wiring
a. Millivolt.and.Electronic.Appliances.
– The.operating.control.switch.is.fac-
tory.installed.
WARNING
Use Top Flange For
1/2” Thick Drywall
Failure to position the parts in
accordance with these diagrams
orfailuretouseonlypartsspecifi-
callyapprovedwiththisappliance
may result in property damage or
personal injury.
Front Of
Fireplace
Use Center Flange
For Flush Mount
b..Electronic.Appliances.–.Connect.120.
Vac.electrical.power.to.the.appliance.
receptacle..
Use Bottom Flange For
5/8” Thick Drywall
Step 5.. (Page 22).Remove.glass.door.assem-
bly..
Step 6.. (Page 22). Make. connection. to. gas.
supply.
Step 7.. (Page 23).Verifying.appliance.opera-
tion..
Step 8.. (Page 24).Install.ceramic.panels,.logs.
and.glowing.embers.
Step 9. (Page 26).Install.glass.door.assem-
bly.
Step 10. (Page 26) Adjust. burner. to. ensure.
proper.flame.appearance.
Step 11..(Page 29) Attach.Safety.in.Operation.
Warnings.
Left Side Front Corner of Fireplace Shown
(Right Side Requirements the Same)
AVERTISSEMENT
Unit Being Secured By Its Nailing Flanges
To The Framing
Risque de dommages ou de
blessures si les pièces ne sont
pas installées conformément à
ces schémas et ou si des pièces
autres que celles spécifiquement
approuvéesaveccetappareilsont
utilisées.
Note: The nailing flanges, combustible members
and screw heads located in areas directly adjacent
to the nailing flanges, are ExEMPT from the 1/2”
clearance to combustible requirements for the
firebox outer wrapper. Combustible framing may be
in direct contact with the nailing flanges and may
be located closer than 1/2” from screw heads and
the firebox wrapper in areas adjacent to the nailing
flanges. Frame the opening to the exact dimensions
specified in the framing details of this manual.
Unit Being Secured by Its Nailing
Flanges to the Framing
DETAILED INSTALLATION STEPS
Figure 11
The.appliance.is.shipped.with.all.gas.controls.
and.components.installed.and.pre-wired..
Step 1. FRAMING
Frame.these.appliances.as.illustrated.in.Figure
12 on Page 10, unless.the.appliance.is.to.be.
installed.in.a.corner. See.Figure 13 on Page
11 .for.corner.framing.installations...All.framing.
details.must.allow.for.a.minimum.clearance.to.
combustible. framing. members. as. shown. in.
Table 5 on Page 8.
1.. Remove.the.shipping.carton,.exposing.the.
front.glass.door.on.the.valve.access.side.
2.. Using.a.Phillips.screwdriver,.unfasten.two.(2).
screws.located.at.the.top.of.the.glass.frame.
(seeFigure49). Tilt.the.top.of.the.glass.frame.
away.from.the.unit...Lift.it.carefully.off.the.
bottom.door.track.and.set.the.door.aside,.
protecting.it.from.inadvertent.damage.
If.the.appliance.is.to.be.elevated.above.floor.
level,. a. solid. continuous. platform. must. be.
constructed.below.the.appliance.
TYPICAL INSTALLATION SEQUENCE
The.typical.sequence.of.installation.is.outlined.
below... However,. each. installation. is. unique.
and. may. result. in. variations. to. the. steps.
described..
Headers. may. be. in. direct. contact. with. the.
appliance.top.spacers.but.must.not.be.sup-
ported.by.them.or.notched.to.fit.around.them..
All.construction.above.the.appliance.must.be.
self-supporting,.DO NOT.use.the.appliance.for.
structural.support.
See.the.Page.numbers.references.in.the.follow-
ing.steps.for.detailed.procedures.
The. fireplace. should. be. secured. to. the. side.
framing. members. using. the. unit's. nailing.
flanges.-.one.top.and.bottom.on.each.side.of.
the.fireplace.front.(see.Figure 11). Use.8d.nails.
or.their.equivalent.
Step 1. (Page 9) Construct. the. appliance.
framing...Position.the.appliance.within.
the. framing. and. secure. with. nailing.
brackets.
Step 2. (Page 11) .Route.gas.supply.line.to.
the.right.side.
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FIREPLACE AND FRAMING SPECIFICATIONS
Framing Dimensions
Models
A
B
C
Framing should be constructed
of 2x4 or larger lumber.
-
VENT FRAMING
in.
mm
in.
50-3/4
1289
56-7/8
1445
43
75-1/8
1908
TOP VENT WITH 2 FEET
VERTICAL VENT AND
ONE 90° ELBOW
13
LSM40-2
(330)
1092
48
80-1/16
2034
LSM45-2
mm
1219
8-1/2
(216)
6-1/2
(165)
15
(381)
Efficiencies %
Natural Gas
Propane
Models
LSM40M
LSM40E
LSM45M
LSM45E
P4
P4
35%
35.8
50.8
51.2
38.1
C
B
42.3
25-1/4
(641)
1/2 A
E
A
D
Inches (mm)
5-1/4”
(133)
14-1/8
(359)
8-1/2”
(216)
26-15/32
(672)
25-29/32
(658)
Top View
J
25-1/2
(648)
Notes
Diagrams, illustrations and photo-
graphs are not to scale – consult
installation instructions. Product
designs, materials, dimensions,
specifications, colors and prices are
subject to change or discontinuance
without notice.
8-3/8
(213)
5-3/32 (129)
2-1/2 (64)
Gas Inlet
7
(This
Side
(178)
C
G
Only)
B
H
Vent Size
Electrical
Inlet
Co-axial DV
Vent Size
8" Inner
11" Outer
19-5/8
(498)
F
Right Side View
A
Front View
Fireplace Dimensions
Model
No.
A
B
C
D
E
F
G
H
J
in.
mm
in.
50-5/8
1286
37-1/4
946
42-7/8
1089
25-5/16
643
34
37-5/8
956
33-3/32
840
29-9/32
744
34-3/4
LSM40-2
LSM45-2
864
883
40-59/64
1039
56-11/16
1440
42-1/4
1073
47-7/8
1216
28-3/8
721
40-1/8
1019
43-5/8
1108
38-3/32
968
34-1/2
876
mm
Figure 12
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Model
No.
A
B
C
D
in.
mm
in.
50-5/8 83-5/8 59-1/8 41-7/8
1286 2124 1502 1064
56-3/4 89-7/8 63-1/2 44-7/8
1441 2283 1613 1140
LSM40-2
LSM45-2
C
D
mm
A
B
Back wall of chase/enclosure
(including any finishing materials)
Figure 13 - Corner Framing with Square Termination (SV8HTS)
Notes:
Never. use. galvanized. or. plastic. pipe... Refer.
Step 2. ROUTING GAS LINE
•. All. appliances. are. factory-equipped. with.
a.flexible.gas.line.connector.and.1/2.inch.
shutoff.valve.(see.Figure 37.on.Page 22).
•. See.MassachusettsRequirements.on.Page
4..for.additional.requirements.for.installations.
in.the.state.of.Massachusetts.in.the.USA.
•. The.gas.supply.line.should.Not.be.connected.
to.the.appliance.until.Step 6.(Page 22).
•. A.pipe.joint.compound.rated.for.gas.should.be.
used.on.the.threaded.joints.Ensurepropane
resistant compounds are used in propane
applications..Be.very.careful.that.the.pipe.
compound.does.not.get.inside.the.pipe.
•. It.is.recommended.to.install.a.sediment.trap.
in.the.supply.line.as.close.as.possible.to.the.
appliance.(see.Figure37)...Appliances.using.
propane.should.have.a.sediment.trap.at.the.
base.of.the.tank.
to.Table 6.for.proper.sizing.of.the.gas.sup-
ply.line,.if.black.iron.pipe.is.being.used..Gas.
lines.must.be.routed,.constructed.and.made.
of.materials.that.are.in.strict.accordance.with.
local.codes.and.regulations....We.recommend.
that.a.qualified.individual.such.as.a.plumber.or.
gas.fitter.be.hired.to.correctly.size.and.route.
the.gas.supply.line.to.the.appliance..Installing.
a.gas.supply.line.from.the.fuel.supply.to.the.
appliance.involves.numerous.considerations.of.
materials,.protection,.sizing,.locations,.controls,.
pressure,.sediment,.and.more..Certainly.no.one.
unfamiliar.and.unqualified.should.attempt.sizing.
or.installing.gas.piping.
Route.a.1/2".(13.mm).gas.line.along.the.inside.
of.the.right.side.framing.as.shown.in Figure
14...Gas.lines.must.be.routed,.constructed.and.
made.of.materials.that.are.in.strict.accordance.
with.local.codes.and.regulations.
All. appliances. are. factory-equipped. with. a.
flexible.gas.line.connector.and.1/2.inch.shutoff.
valve..(See Step 6 on Page 22).
The. incoming. gas. line. should. be. piped. into.
the.valve.compartment.and.connected.in.one.
of.the.two.methods.as.shown.in.Figure 37.on.
Page 22.
Schedule 40
Black Iron Pipe
Inside Diameter (Inches)
Right Side
Front Corner
Of Fireplace
Framing
•. Check.with.local.building.official.for.local.
code.requirements.(i.e..are.below.grade.pen-
etrations.of.the.gas.line.allowed?,.etc.).
Schedule 40 Pipe
Length (feet)
Natural
Gas
Propane
Gas
0-10
10-40
1/2
1/2
1/2
3/4
3/4
3/8
1/2
1/2
1/2
1/2
IMPORTANT:Ifpropaneisused,beawarethat
if tank size is too small (i.e. under 100-lbs, if
this is the only gas appliance in the dwelling.
Ref. NPFA 58), there may be loss of pressure,
resulting in insufficient fuel delivery (which
can result in sooting, severe delayed ignition
orothermalfunctions). Anydamageresulting
from an improper installation, such as this, is
not covered under the limited warranty.
19-5/8”
(498 mm)
40-100
100-150
150-200
Table 6
6-1/4”
(159 mm)
Figure 14
Proper Sizing of Gas Line
Properly. size. and. route. the. gas. supply. line.
from.the.supply.regulator.to.the.area.where.the.
appliance.is.to.be.installed.per.requirements.
outlined.in.the.National.Fuel.Gas.Code,.NFPA.
54.-.latest.edition.(USA).or.CAN/CSA-B149.1.
-.latest.edition.(Canada)..
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Installation of Vent Restrictor
Step 3. INSTALL THE VENT SYSTEM.
AIR INLET BAFFLE
General Information
A.vent.restrictor.may.be.needed.with.this.appli-
ance...The.restrictor.is.installed.in.the.appliance.
top.flue.outlet.as.shown.in.Figure 15,
Theseinstructions should be used asa guide-
line and do not supersede local codes in any
way. Install vent according to local codes,
these instructions, the current National Fuel
Gas Code (ANSI-Z223.1) in the USA or the
current standards of CAN/CGA-B149.1 and
-B149.2 in Canada.
For vertical venting from 6 feet to 12 feet or
more, from the top of the fireplace to the top
of the termination, the installation of a vent
restrictor is required.
GRATE
If.necessary,.install.a.vent.restrictor.in.the.ap-
pliance.flue.outlet.as.shown.in.Figure 15..It.is.
held.in.place.by.friction,.only.
Figure 16
Ensure clearances are in accordance with
local installation codes and the requirements
of the gas supplier.
Select Venting System - Horizontal or Verti-
cal
Note: The restrictor is included within the
firebox.
Dégagement.conforme.aux.codes.d'installation.
locaux. et. aux. exigences. du. foumisseunde.
gaz.
With. the. appliance. secured. in. framing,. de-
termine.vent.routing.and.identify.the.exterior.
termination.location..The.following.sections.
describe.vertical.(roof).and.horizontal.(exterior.
wall).vent.applications..Refer.to.the.section.
relating.to.your.installation. A list of approved
venting components is shown on Page 30.
VENT RESTRICTOR INSTALLATION
Use only approved venting components.
See Approved Vent Components on
Page 2.
When.vertically.terminating.the.vent.system.above
the.roof,.install.a.vent.restrictor.in.the.top.vent.of
the.fireplace.outlet.
Install.the.restrictor.as.shown.from
inside.the.unit,.in.the.inner.fireplace.collar.
These fireplaces must be vented directly
to the outside.
RESTRICTOR
The. vent. system. may. not. service. multiple.
appliances,.and.must.never.be.connected.to.a.
flue.serving.a.solid.fuel.burning.appliance..The.
vent.pipe.is.tested.to.be.run.inside.an.enclosing.
wall.(such.as.a.chase)..There.is.no.requirement.
for.inspection.openings.in.the.enclosing.wall.at.
any.of.the.joints.in.the.vent.pipe..
APPLIANCE VENT OUTLET
Figure 15
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VERTICAL TERMINATION SYSTEMS (ROOF)
VENT SECTION LENGTH CHART
VENT SECTION LENGTH CHART
Nominal
T
O
T
A
L
T
O
T
A
L
Nominal Section
6
12
24
36
48
Section Length
(inches)
6
12
24
36
48
Length (inches)
See.Figure 17 and Figures 25 through 27 on
Page16.and.their.associated.Vertical.Vent.Tables.
which.illustrate.the.various.vertical.venting.con-
figurations.that.are.possible.for.use.with.these.
appliances...Secure Vent™.pipe.applications.
are. shown. in. these. Figures... A.Vertical.Vent.
Table.summarizes.each.system’s.minimum.and.
maximum.vertical.and.horizontal.length.values.
that.can.be.used.to.design.and.install.the.vent.
components.in.a.variety.of.applications.
Net Section
Net Section
4-1/2 10-1/2 22-1/2 34-1/2 46-1/2
Number of Vent Sections
4-1/2 10-1/2 22-1/2 34-1/2 46-1/2
Number of Vent Sections
Length (inches)
Length (inches)
Height of Vent
Height of Vent
Q
T
Q
T
inches
4.5
ft
inches
144
ft
Y
Y
0.375
0.75
1
2
0
1
2
0
0
1
0
0
1
0
0
1
1
1
2
0
2
3
0
1
0
0
0
0
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
1
0
0
0
0
1
2
1
2
3
2
1
3
3
1
3
12
1
0
1
0
0
1
0
0
1
0
0
0
1
0
1
1
2
0
0
1
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
5
5
5
0
0
0
5
6
6
3
3
3
3
0
0
0
4
4
4
0
0
0
4
4
5
5
5
6
6
4
5
5
7
6
7
9
150
12.5
10.5 0.875
15 1.25
19.5 1.625
21 1.75
154.5 12.875
160.5 13.375
172.5 14.375
0
0
0
0
0
0
0
0
177
183
186
14.75
15.25
15.5
22.5 1.875
25.5 2.125
31.5 2.625
34.5 2.875
37.5 3.125
The.vertical.vent.system.terminates.through.
the.roof..The.minimum.vent.height.above.the.
roof.and/or.adjacent.walls.is.specified.in.ANSI.
Z223.1-(latest.edition).(In.Canada,.the.current.
CAN/CSA-B149.1.installation.code).by.major.
building. codes.. Always. consult. your. local.
codes. for. specific. requirements.. A. general.
guide.to.follow.is.the.Gas.Vent.Rule.(refer.to.
Figure 5 on Page 6).
190.5 15.875
196.5 16.375
205.5 17.125
43.5 3.625
0
0
0
1
2
0
0
0
1
2
0
2
0
0
0
0
0
0
1
0
3
2
1
3
45
3.75
207
17.25
46.5 3.875
211.5 17.625
49.5 4.125
217.5 18.125
229.5 19.125
232.5 19.375
0
0
0
1
0
1
0
0
0
0
1
1
0
0
0
1
0
1
0
0
1
0
1
0
0
1
0
1
0
0
0
0
0
1
0
0
0
0
0
1
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
1
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
6
6
0
0
5
5
0
0
0
0
0
6
0
6
6
6
0
0
7
7
7
0
0
8
8
0
9
9
7
7
51
4.25
1
0
0
0
0
0
1
1
0
0
0
0
0
1
1
0
1
0
2
0
0
0
0
1
0
2
0
0
0
0
0
2
1
2
3
0
3
0
0
0
1
2
0
1
0
0
0
1
0
0
2
0
2
2
1
0
0
0
2
0
1
0
0
0
0
0
0
0
0
1
1
1
2
0
2
2
3
2
4
3
2
4
3
3
2
4
3
2
4
3
Vertical (Straight) Installation
(Figure 17)
55.5 4.625
0
5
57
66
4.75
237
19.75
0
6
5.25
Determine.the.number.of.straight.vent.sections.
required..4-1/2".(114.mm),.10-1/2".(267.mm),.
22-1/2". (572. mm),. 34-1/2". (876. mm). and.
46-1/2". (1181. mm). net. section. lengths. are.
available.(see.Tables on this page.and.Page
30.- Vent Sections)..Plan.the.vent.lengths.so.
that.a.joint.does.not.occur.at.the.intersection.of.
ceiling.or.roof.joists..Refer.to.the.Vent.Section.
Length.Chart.
241.5 20.125
7
7
67.5 5.625
246
252
264
276
279
20.5
21
7
8
69
72
5.75
7
8
6
22
7
8
73.5 6.125
23
8
8
79.5 6.625
23.25
0
6
81
90
6.75
280.5 23.375
283.5 23.625
289.5 24.125
301.5 25.125
310.5 25.875
8
9
7.5
0
7
91.5 7.625
0
7
93
96
7.75
0
7
Termination
8
9
9
Flashing And
Storm Collar
97.5 8.125
102 8.5
103.5 8.625
315
26.5
9
10
7
2
0
1
0
0
0
0
0
0
0
3
3
2
0
0
4
3
4
325.5 27.125
0
330
336
345
27.5
28
0
8
108
114
117
9
0
8
9.5
0
1
1
0
1
0
0
0
1
2
0
1
0
0
0
0
0
0
0
5
0
1
1
6
0
0
0
0
0
3
3
3
0
4
0
4
2
0
0
0
0
0
0
3
0
4
6
5
4
5
6
4
3
5
28.75
10
10
0
10
11
8
9.75
1" (25 mm)
Minimum
Clearance to
Combustibles
349.5 29.125
372 31
118.5 9.875
126 10.5
130.5 10.875
376.5 31.375
379.5 31.625
418.5 34.875
0
9
11
0
11
9
135
138
11.25
Firestop/Spacer
11.5
423
465
35.25
0
10
139.5 11.625
38.75
0
10 10
142.5 11.875
40' Max
(12.2 M)
6' Min
SV8 6/12/24/36/48
Vent Sections
Effective Vent Length
(1.8 M)
Model
Effective Length
Note: Convert inches into metric equivalent
measurement, as follows:
SV4.5L6
SV4.5L12
SV4.5L24
SV4.5L36
SV4.5L48
4-1/2"
10-1/2"
22-1/2"
34-1/2"
46-1/2"
Millimeters (mm) = Inches x 25.4
Centimeters (cm) = Inches x 2.54
Meters (M) = Inches x .0254
Table 7
Figure 17
NOTE:.DIAGRAMS.&.ILLUSTRATIONS.ARE.NOT.TO.SCALE.
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B.. Attach vent components to appliance
-.Secure Vent.SV8.direct-vent.system.compo-
nents.are.unitized.concentric.pipe.components.
featuring.positive.twist.lock.connections.(see
Figure 19)...
Push.the.vent.component.against.the.previous.
section. until. it. fully. engages,. then. twist. the.
component.clockwise.running.the.dimples.down.
and.along.the.incline.channels.until.they.seat.at.
the.end.of.the.channels..This seating position
is indicated by the alignment of the arrow and
dimple as shown in.Figure 19.
Vertical (Offset) Installation
Analyze. the. vent. routing. and. determine. the.
quantities.of.vent.sections.and.number.of.elbows.
required..Refer.to.Vertical Vent Figures and
Tables on Page 16..to.select.the.type.of.vertical.
installation.desired..Vent.sections.are.available.
in.net.lengths.of.4-1/2".(114.mm),.10-1/2".(267.
mm),.22-1/2".(572.mm),.34-1/2".(876.mm).and.
46-1/2".(1181.mm)..Refer.to.the.Vent Section
Length Chart on Page 13.for.an.aid.in.select-
ing.length.combinations..Elbows.are.available.
in.90°.and.45°.configurations..Refer.to.Figure
21 on Page 15 .for.the.SV8.E45.and.SV8.E90.
elbow.dimensional.specifications....
All.of.the.appliances.covered.in.this.document.
are.fitted.with.collars.having.locking.inclined.
channels..The.dimpled.end..of.the.vent.com-
ponents.fit.over.the.appliance.collar.to.create.
the.positive.twist.lock.connection.
D..Install firestop/spacer at ceiling -.When.
using.Secure.Vent,.use.SV8BF.firestop/spacer.
at.ceiling.joists..If.there.is.living.space.above.
the.ceiling.level,.the.firestop/spacer.must.be.
installed.on.the.bottom.side.of.the.ceiling..If.attic.
space.is.above.the.ceiling,.the.firestop/spacer.
must.be.installed.on.the.top.side.of.the.joist..
Align the dimple (four places) of the
upper vent section with the opening
of the locking incline channel on
the lower vent section or appliance
collar. Twist vent component clock-
wise to engage and seal until arrow
Route. the. vent. sections. through. the. framed.
opening. and. secure. the. firestop/spacer. with.
8d.nails.or.other.appropriate.fasteners.at.each.
corner.. Remember to maintain 1" (25 mm)
clearancetocombustibles,framingmembers,
and attic or ceiling insulation when running
vertical chimney sections. Attic insulation
shield (H3908) may be used to obtain the
required clearances indicated here. See
installation accessories on Page 30. .The.gap.
between.the.vent.pipe.and.a.vertical.firestop.can.
be.sealed.with.non-combustible.caulking.
Where. required,. a. telescopic vent section
(SV8LA)..may.be.used.to.provide.the.installer.
with.an.option.in.installing.in.tight.and..con-
fined.spaces.or.where.the.vent.run.made.up.
of. fixed. length. pieces. develops. a. joint. in. a.
undesirable.location,.or.will.not.build.up.to.the.
required. length.. The. SV8LA. Telescopic. Vent.
Section.has.an.effective.length.of.from.1-1/2".
(38.mm).to.6-3/4".(171.mm)..The.SV8LA..is.
fitted.with.a.dimpled.end.(identical.to.a.normal.
vent.section.component).and.a.plain.end.with.
3. pilot. holes.. Slip. the. dimpled. end. over. the.
locking.channel.end.of..a.standard..SV8.vent.
component.the.required.distance.and.secure.
with.three.screws.
and dimple align.
Arrow
Dimple
Locking Incline
Channel
Connected Vent
Sections
Arrow
Appliance Collar or
Vent Section
Figure 19
E..Support the vertical vent run sections -
Note-Properventingsupportisveryimportant.
The weight of the vent must not be supported
by the fireplace in any degree..
To.attach.a.vent.component.to.the.appliance.
collar,.align.the.dimpled.end.over.the.collar,.
adjusting. the. radial. alignment. until. the. four.
locking.dimples.are.aligned.with.the.inlet.of.
the.four.inclined.channels.on.the.collar.(refer to
Figure 19)...Push.the.vent.component.against.
the.collar.until.it.fully.engages,.then.twist.the.
component. clockwise,. running. the. dimples.
down.and.along.the.incline.channels.until.they.
seat.at.the.end.of.the.channels...The.unitized.
design.of.the.Secure Vent™.components.will.
engage.and.seal.both.the.inner.and.outer.pipe.
without.the.need.for.sealant.or.screws...If.desired.
a.#6.x.1/2".screw.may.be.used.at.the.joint,.but.
it.is.not.required.as.the.pipe.will.securely.lock.
when.twisted.
Maintain a minimum 1" (25 mm) clearance
to combustible materials for all vertical ele-
ments. Clearancesforallhorizontalelements
are 3" (76 mm) on top, 1" (25 mm) on sides
and 1" (25 mm) on the bottom.
Support. the. vertical. portion. of. the. venting.
system.every.8.feet.(2.4.m).above.the.fireplace.
vent.outlet..
A..Frame ceiling opening -.Use.a.plumb.line.
from.the.ceiling.above.the.appliance.to.locate.
center. of. the. vertical. run.. Cut. and/or. frame.
an.opening,.13".x.13"..(330.mm.x.330.mm).
inside. dimensions,. about. this. center. mark.
(Figure 18).
Blocking
SupportStraps
(Plumber'stape)
13” Min.
(330 mm)
C. Attach vent components to each other
-. Other. vent. sections. may. be. added. to. the.
previously.installed.section.in.accordance.with.
the.requirements.of.the.vertical.vent.figures.
and.tables...To.add.another.vent.component.
to.a.length.of.vent.run,.align.the.dimpled.end.
over.the.inclined.channel.end.of.the.previously.
installed.section,.adjusting.the.radial.alignment.
until.the.four.locking.dimples.are.aligned.with.
the.inlets.of.the.four.incline.channels.of.the.
previous.section..
Roof
Framing
13” Min.
(330 mm)
8 feet(2.4m)
Maximum
Ceiling
Framing
Plumb
Bob
1inch(25.4
mm)minimum
clearanceto
combustibles
Figure 20
Figure 18
NOTE:.DIAGRAMS.&.ILLUSTRATIONS.ARE.NOT.TO.SCALE.
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One.method.of.support.is.by.utilizing.field.pro-
vided.support.straps.(conventional.plumber's.
tape)..Secure.the.plumber's.tape.to.the.framing.
members.with.nails.or.screws. Strap.the.tape.
around.the.vent,.securing.the.ends.of.the.tape.
to.the.framing..If.desired,.sheet.metal.screws.#6.
x.1/2".length.may.be.used.to.secure.the.support.
straps.to.the.vent.pipe...See.Figure 20.
K. Install the vertical termination - The.
final.step.involves.installation.of.the..Vertical.
Termination...Extend.the.vent.sections.to.the.
height.as.shown.in.the."Vertical.vent.termina-
tion.section".on.Page 6...The.SV8VTR.Vertical.
Termination.(Figure 24).can.be.installed..in.the.
exact.same.fashion.as.any.other.Secure Vent™.
section...Align.the.termination.over.the.end.of.
the.previously.installed.section,.adjusting.the.
radial.alignment.until.the.four.locking.dimples.
of.the.termination.are.aligned.with.the.inlets.of.
the.four.incline.channels.of.the.last.vent.section..
Push.the.termination.down.until.it.fully.engages,.
then.twist.the.termination.clockwise.running.the.
dimples.down.and.along.the.incline.channels.
until.they.seat.at.the.end.of.the.channels.
C
D
F.Changeventdirectiontohorizontal/inclined
run-.At.transition.from.or.to.a.horizontal/inclined.
run,.install.the.SV8.E45.and.SV8.E90.elbows.in.
the.same.manner.as.the.straight.vent.sections..
The.elbows.feature.a.twist.section.to.allow.them.
to.be.routed.about.the.center.axis.of.their.initial.
collar.section.to.align.with.the.required.direc-
tion.of.the.next.vent.run.element..Twist elbow
sections in a clockwise direction only so as
to avoid the possibility of unlocking any of
the previously connected vent sections..See.
Figure 19 on Page 14 and Figure 21.
Framing Dimensions for Roof
Inches (millimeters)
Pitch
C
D
13 in.
(330 mm)
13 in.
(330 mm)
0/12
13 in.
(330 mm)
15-1/2 in.
(394 mm)
6/12
13 in.
(330 mm)
20-1/2 in.
(541 mm)
12/12
Figure 22 - Roof Framing
I..Install the roof flashing - Extend.the.vent.
sections.through.the.roof.structure..Install.the.
roof.flashing.over.the.vent.section.and.posi-
tion.such.that.the.vent.column.rises.vertically.
(use.carpenters.level).(Figure 23)..Nail.along.
perimeter.to.secure.flashing.or.adjust.roofing.
to.overlap.the.flashing.edges.at.top.and.sides.
only.and.trim.where.necessary..Seal.the.top.
and.both.sides.of.the.flashing.with.waterproof.
caulking.
10"
6"
(254mm)
(153mm)
Swivel Joint
(360° swivel)
SV8E45
Swivel Joint
(360° swivel)
SV8E90
(45° Elbow)
(90° Elbow)
Figure 21
G..Continueinstallationofhorizontal/inclined
sections -.Continue.with.the.installation.of.the.
straight.vent.sections.in.horizontal/inclined.run.
as.described.in.Step C..Install.support.straps.
every. 3'. (914. mm). along. horizontal/inclined.
vent.runs.using.conventional.plumber’s.tape..
See Page 17, Figure 28..It is very important
thatthehorizontal/inclinedrunbemaintained
inastraight(nodips)andrecommendtobein
a slightly elevated plane, in a direction away
from the fireplace 1/4" per foot (20 mm per
meter)whichisideal,.through.rise.per.foot.run.
ratios.that.are.smaller.are.acceptable.all.the.way.
down.to.at.or.near.level...Use.a.carpenter’s.level.
to.measure.from.a.constant.surface.and.adjust.
the.support.straps.as.necessary..
Figure 24
J. Install the storm collar -.Install.the.storm.
collar,. supplied. with. the. flashing,. over. the.
vent/flashing. joint. (see. Figure 23). . Loosen.
the.storm.collar.screw..Slide.collar.down.until.
it.meets.the.top.of.the.flashing..Tighten.the.ad-
justing.screw..Apply.non-combustible.caulking.
or.mastic.around.the.circumference.of.the.joint.
to.provide.a.water.tight.seal.
If.the.vent.system.extends.more.than.5.feet.(1.5.
m).above.the.roof.flashing,.stabilizers.may.be.
necessary..Additional.screws.may.be.used.at.
section.joints.for.added.stability..Guide.wires.
may.be.attached.to.the.joint.for.additional.sup-
port.on.multiple.joint.configurations.
Storm
Collar
Flashing
It is important to maintain the required clear-
ancestocombustibles:1"(25mm)atallsides
forallverticalruns;and3"(76mm)atthetop,
1" (25 mm) at sides, and 1" (25 mm) at the
bottom for all horizontal/inclined runs.
H..Frame roof opening -.Identify.location.for.
vent.at.the.roof..Cut.and/or.frame.opening.per.
Roof.Framing.Chart.(Figure 22)...
Figure 23
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VERTICAL VENT FIGURES/TABLES
Table A
Notes:
V Minimum
• Secure Vent™ (rigid vent pipe) is shown
in the Figures.
H Maximum
feet (meter)
H
feet
(meter)
(0.762)
(1.07)
• It is very important that the horizontal/in-
clined run be maintained in a straight (no
dips) and recommended to be in a slightly
elevated plane, in a direction away from the
fireplace of 1/4" rise per foot (20 mm per
meter) which is ideal, though rise per foot
run ratios that are smaller are acceptable all
the way down to at or near level.
10
15
20
(3.1)
(4.65)
(6.2)
2.5
3.5
4.5
Ceiling
Firestop/Spacer
(SV8BF)
(1.37)
V + V1 + H = 40 feet (12.4 meters) Max.
V + V1 = 11 feet (3.3 meters) Minimum for LSM40-2
V + V1 = 10.5 feet (3.2 meters) Minimum for LSM45-2
• SV8BF (Secure Vent) firestop/spacer must
be used anytime vent pipe passes through a
combustiblefloororceiling. SV8HF(Secure
Vent) firestop/spacer must be used anytime
vent pipe passes through a combustible
wall.
• Two 45 degree elbows may be used in place
of one 90 degree elbow. The same rise to
run ratios, as shown in the venting figures
for90elbows, mustbefollowedif45degree
elbows are used.
V1
Example: If 20 feet of (H)
horizontal vent run is needed,
V
then 4-1/2 feet minimum of (V)
vertical vent will be required.
Figure 26 - Top Vent - Corner Framing with Square Termination (SV8HTS)
TWO 90 DEGREE ELBOWS
40 feet (12.2 meters)
Ceiling
Firestop/Spacer
(SV8BF)
Maximum
6 feet (1.8 meters)
Minimum
Ceiling
Firestop/Spacer
(SV8BF)
Wall
Firestop/Spacer
(SV8HF)
V
1
H
H
1
V
Table B
AVentRestrictor, asshowninFigure15 onPage
12, may need to be used in this application
V Minimum
H + H Maximum
1
feet
(meter)
(3.1)
feet
2.5
3.5
4.5
(meter)
(0.762)
(1.06)
Figure 25 - Top Vent - STRAIGHT
10
15
20
(4.65)
(6.2)
(1.37)
H + H = 20 feet (6.2 m) Max.
1
V + V + H + H = 40 ft. (12.4 m) Max.
1
1
V + V = 11 feet (3.3 meters) Min. for LSM40-2
V + V = 10.5 feet (3.2 meters) Min. for LSM45-2
1
1
Example: If 20 feet of (H+ H ) horizon-
tal vent run is needed, then 41-1/2 feet
minimum of (V) vertical vent will be
required.
Figure 27 - Top Vent - THREE ELBOWS
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HORIZONTAL (OUTSIDE WALL)
TERMINATION SYSTEM
TYPICAL HORIZONTAL VENT INSTALLATION
Support
Horizontal / Inclined Run
SV8HTS
Termination
Shown
Building
Support
Framing
Brackets
See.Figures 28, 31, 32 and 33 on Pages 17,
19 and 20 and.their.associated.Horizontal.Vent.
Table. which. illustrate. the. various. horizontal.
venting. configurations. that. are. possible. for.
use. with. these. appliances.. . Secure Vent™.
pipe.applications.are.shown.in.these.Figures..
A. Horizontal. Vent. Table. summarizes. each.
system’s.minimum.and.maximum.vertical.and.
horizontal.length.values.that.can.be.used.to.
design.and.install.the.vent.components.in.a.
variety.of.applications..
SV8E90
Elbow
Exterior
Wall
SV8 L6/12/24/36/48
Vent Sections
Ceiling
Firestop/Spacer
Vertical
Rise
SV8HTS
Termination
Shown
Support Bracket Spacing
Every 3 ft (914 mm)
2-1/2 Foot Vertical
Vent (min.)
The.horizontal.vent.system.terminates.through.
an.outside.wall..Building.Codes.limit.or.prohibit.
terminating.in.specific.areas..Refer.to.Figure 7
on Page 7.for.location.guidelines.
Exterior
Wall
Fireplace
Secure Vent.SV8.direct-vent.system.compo-
nents.are.unitized.concentric.pipe.components.
featuring.positive.twist.lock.connection,.(refer
to Figure 19.on Page 14)...All.of.the.appli-
ances.covered.in.this.document.are.fitted.with.
collars.having.locking.inclined.channels..The.
dimpled.end.of.the.vent.components.fit.over.
the.appliance.collar.to.create.the.positive.twist.
lock.connection.
Support the vertical portion of the venting system
every 8 feet (2.4m) above the fireplace vent outlet.
Figure 28
Push. the. vent. component. against. the. collar.
until.it.fully.engages,.then.twist.the.component.
clockwise,.running.the.dimples.down.and.along.
the.incline.channels.until.they.seat.at.the.end.
of.the.channels...The.unitized.design.of.the.
Secure Vent.components.will.engage.and.seal.
both.the.inner.and.outer.pipe.elements.with.the.
same.procedure...Sealant.and.securing.screws.
are.not.required.
G..Support the vertical run sections -
See.Section E.on Page 14.
H. Changeventdirection-.At.transition.from.or.
to.a.horizontal/inclined.run,.install.the.SV8E45.
and.SV8E90.elbows.in.the.same.manner.as.the.
straight.vent.sections...The.elbows.feature.a.twist.
section.to.allow.them.to.be.routed.about.the.
center.axis.of.their.initial.collar.section.to.align.
with.the.required.direction.of.the.next.vent.run.
element..Twist elbow sections in a clockwise
direction only so as to avoid the possibility of
unlockinganyofthepreviouslyconnectedvent
sections (see.Figure 19 on Page 14).
A..Plan the vent run -.
Analyze.the.vent.routing.and.determine.the.
types. and. quantities. of. sections. required.
4-1/2".(114.mm),.10-1/2".(267.mm),.22-1/2".
(572.mm),.34-1/2".(876.mm).and.46-1/2".(1181.
mm).net.section.lengths.are.available...It.is.
recommended.that.you.plan.the.vent.lengths.
so.that.a.joint.does.not.occur.at.the.intersection.
of.ceiling.or.roof.joists..Make.allowances.for.
elbows.as.indicated.in.Figure 21 on Page 15..
E.Attachventcomponentstoeachother-.Other.
vent.sections.may.be.added.to.the.previously.
installed.section.in.accordance.with.the.require-
ments.of.the.vent.tables...To.add.another.vent.
component.to.a.length.of.vent.run,.align.the.
dimpled.end.of.the.component.over.the.inclined.
channel.end.of.the.previously.installed.section,.
adjusting.the.radial.alignment.until.the.four.lock-
ing.dimples.are.aligned.with.the.inlets.of.the.four.
incline.channels.of.the.previous.section...Push.
the.vent.component.against.the.previous.section.
until.it.fully.engages,.then.twist.the.component.
clockwise.running.the.dimples.down.and.along.
the.incline.channels.until.they.seat.at.the.end.of.
the.channels..Thisseatingpositionisindicated
by the alignment of the arrow and dimple as
shown in.Figure 19 on Page 14.
I..Continue installation of horizontal/inclined
sections -..Continue.with.the.installation.of.the.
straight.vent.sections.in.horizontal/inclined.run.
as.described.in.Step E..Install.support.straps.
every.3.feet.(1914.mm).along.horizontal/inclined.
vent.runs.using.conventional.plumber’s.tape..
Maintain a minimum 1" (25 mm) clearance
to combustibles on the vertical sections.
Clearances for the horizontal runs are; 3"
(76 mm) on top, 1" (25 mm) on sides, and
1" (25 mm) at the bottom.
See.Figure 28,.it is very important that the
horizontal/inclined run be maintained in a
straight (no dips) and recommended to be in
a slightly elevated plane, in a direction away
from the fireplace of 1/4" rise per foot (20 mm
per meter) which is ideal,.though.rise.per.foot.
run.ratios.that.are.smaller.are.acceptable.all.the.
way.down.to.at.or.near.level...
B..Frame exterior wall opening -.
Locate. the. center. of. the. vent. outlet. on.
the. exterior. wall. according. to. the. dimen-
sions. shown. in. Figure 12 on Page 10..
Cut. and/or. frame. an. opening,. 15". x. 13".
(381.mm.x.330.mm).inside.dimensions,.with.
9".above.center.and.7".below.center.
F..Install firestop/spacer at ceiling -
When.using.Secure Vent,.use.SV8BF.firestop/
spacer.at.ceiling.joists..If.there.is.living.space.
above.the.ceiling.level,.the.firestop/.spacer.must.
be.installed.on.the.bottom.side.of.the.ceiling..
If.attic.space.is.above.the.ceiling,.the.firestop/.
spacer. must. be. installed. on. the. top. side. of.
the.joist...Route.the.vent.sections.through.the.
framed.opening.and.secure.the.firestop/spacer.
with.8d.nails.or.other.appropriate.fasteners.at.
each.corner.
C.. Frame ceiling opening -. If. the. vertical.
route.is.to.penetrate.a.ceiling,.use.plumb.line.
to.locate.the.center.above.the.appliance..Cut.
and/or.frame.an.opening,.13".x.13".(330.mm.x.
330.mm).inside.dimensions,.about.this.center.
(refer.to.Figure 18 on Page 14).
It is important to maintain the required clear-
ancestocombustibles:1"(25mm)atallsides
for all vertical runs; and 3" (76 mm) at the top,
1" (25 mm) at sides, and 1" (25 mm) at the
bottom for all horizontal/inclined runs.
D. Attach vent components to appliance - To.
attach.a.vent.component.to.the.appliance.collar,.
align.the.dimpled.end.over.the.collar,.adjust-
ing.the.radial.alignment.until.the.four.locking.
dimples.are.aligned.with.the.inlets.of.the.four.
incline.channels.on.the.collar.(refer to Figure
19..on Page 14).
Use. a. carpenter’s. level. to. measure. from. a.
constant.surface.and.adjust.the.support.straps.
as.necessary..
Remember to maintain 1" (25 mm) clearance
to combustibles, framing members, and attic
or ceiling insulation when running vertical
chimney sections.
NOTE:.DIAGRAMS.&.ILLUSTRATIONS.ARE.NOT.TO.SCALE.
17
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J..Assemble vent run to exterior wall -.If.not.
previously.measured,.locate.the.center.of.the.
vent.at.the.exterior.wall...Prepare.an.opening.
as. described. in. Step B... Assemble. the. vent.
system.to.point.where.the.terminus.of.the.last.
section.is.within.5.in..(127.mm).to.8-1/2.in..(216.
mm).inboard.of.the.exterior.surface.to.which.
the.SV8HTS.termination.is.to.be.attached,.see.
Figure 30 and Table 8...
SV8HTS
Termination
Shown.
Firestop/Spacer (SV8HF) shown
on the exterior side of the wall. It
may also be installed on the
interior side.
8 ¹⁄₂"
13"
(330mm)
(216)
15"
(381 mm)
6 ¹⁄₂"
(165 mm)
3"
(76 mm)
If.the.terminus.of.the.last.section.is.not.within.
this.distance,.use.the.telescopic vent section
SV8LA, as.the.last.vent.section..For.wall.thick-
nesses.greater.than.that.shown.in.Figure 30,.
refer.to.Table 8 on Page 19..This.table.lists.
the.additional.venting.components.needed.(in.
addition.to.the.termination.and.adaptor).for.a.
particular.range.of.wall.thicknesses.
1"
Adapter
SV8RCH
(25 mm)
1"
(25 mm)
Note: Centerline of Vent Piping is
NOT the Same as the Centerline of
the Framed Opening.
See Figure 12 on Page 10 for Minimum
K.. Attach termination adaptor -. Attach. the.
adaptor.(adaptor.-.SV8RCH.-.provided.with.the.
termination).to.the.vent.section.or.telescoping.
vent.section),.or.elbow.as.shown.in.Figure 29
in.the.same.manner.as.any.SV.vent.component.
(refer.to.Step E).
Distance to Base of Appliance
6 to 48 inch Vent Section,
Telescopic vent section.
Base of Appliance
Installing the Square Horizontal Termination (SV8HTS)
Figure 29
L.. Install Firestop/Spacer at exterior wall
-.When.using.the.square termination,.install.
SV8HF.Firestop/Spacer.over.the.opening.at.the.
exterior.side.of.the.framing,.long.side.up,.with.
the.3.inch.spacer.clearance.at.the.top.as.shown.
in.Figure 29,.and.nail.into.place.
Minimum wall thickness
5 in. (127 mm)
Maximum wall thickness
8-1/2 in. (216 mm)
u
Interior Surface of
Finished Wall
Exterior Surface of Siding
Exterior Surface of
Framing
Siding
Maximum Extent of
Vent Run Sections
Relative to Exterior
Surface of Framing
5 in. to 8-1/2 in.
(127 to 216 mm)
(The. Firestop/Spacer. may. also. be. installed.
over. the. opening. at. the. interior. side. of. the.
framing).
Last Vent Section. Use
Telescopic Vent
Section (SV8LA), If
Necessary
SV8HTS
Square Termi
Shown
M. Install the square termination (SV8HTS)-.
For. the. last. step,. from. outside. the. exterior.
wall,.slide.the.collars.of.the.termination.onto.
the.adaptor.(the.outer.over.the.outer.and.the.
inner. inside. the. inner). until. the. termination.
seats.against.the.exterior.wall.surface.to.which.
it.will.be.attached...Orient.the.housing.of.the.
termination.with.the.arrow.pointed.upwards..
Secure.the.termination.to.the.exterior.wall...The
horizontal termination must not be recessed
into the exterior wall or siding.by more than
the 1-1/4" (32 mm) as shown in.Figure 30.
SV8HTS
Adapter
SV8RCH
Square Termination
shown
1-1/4” Maximum Rec
Square Termination
Exterior Finishing Ma
Stucco
For wall thicknesses greater than
8-1/2 inches, see Table 8
u
Venting Connection and Exterior Wall Recessing
of the Horizontal Square Termination (SV8HTS).
IMPORTANT: The vent termination is hot
whileinoperationandforaperiodoftime
following the use of the fireplace. Young
children should be carefully supervised
when they are in the same area as a hot
termination.
Figure 30 - Wall Thickness and Horizontal Termination Requirements
Horizontal terminations have been designed to perform in a wide range of weather condi-
tions. Our terminations meet or exceed industry standards.
When selecting the locations of your horizontal terminations, do not place the termina-
tion where water from eaves and adjoining rooflines may create a heavy flow of cascad-
ing water onto the termination cap. If the cap must be placed where the possibility of
cascading water exists, it is the responsibility of the builder to direct the water away
from the termination cap by using gutters or other means.
Take care to carefully follow the installation instructions for the termination, including
the use of silicone caulking where required.
NOTE:.DIAGRAMS.&.ILLUSTRATIONS.ARE.NOT.TO.SCALE.
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See Table 8 as an aid in venting component selection for a particular
range of exterior wall thicknesses.
HORIZONTAL VENT FIGURES/TABLES
Notes:
Venting Components Required for Various Exterior Wall Thick-
nesses, when using Square Termination Kit (SV8HTS)
• Secure Vent™ components (rigid vent pipe and terminal) are shown
in the Figures.
• Two 45 degree elbows may be used in place of one 90 degree elbow.
The same rise to run ratios, as shown in the venting figures for 90
elbows, must be followed if 45 degree elbows are used.
• SV8BF (Secure Vent) firestop/spacer must be used anytime vent pipe
passes through a combustible floor or ceiling. SV8HF (Secure Vent)
firestop/spacer must be used anytime vent pipe passes through a
combustible wall.
• It is very important that the horizontal/inclined run be maintained
in a straight (no dips) and recommended to be in a slightly elevated
plane, in a direction away from the fireplace of 1/4" rise per foot (20
mm per meter) which is ideal, though rise per foot run ratios that are
smaller are acceptable all the way down to at or near level.
Vent Components Required Exterior Wall Thickness - inches (mm)
Termination.Kit.Only
5.to.8-1/2.(127.to.216)
Termination.Kit.and..6.In..Vent.
Section.(SV8L6)
9-3/4.to.14.(248.to.356)
Termination. Kit. and. Tele-
scopic.Section.(SV8LA)
6-3/4.to.15-1/4.(171.to.387)
11-1/4.to.19-3/4.(286.to.502)
Termination. Kit. and. Tele-
scopic.Section.(SV8LA).and.6.
in..vent.section.(SV8L6)
Table 8
Example: If 20 feet of (H) hori-
Table C
zontal vent run is needed, then
10 feet minimum of (V) vertical
vent will be required.
V Minimum
H Maximum
feet
3.5
(meter)
(1.07)
(1.98)
(2.6)
feet
(meter)
(0.762)
(1.07)
(1.37)
(1.68)
(1.98)
(2.3)
2.5
3.5
4.5
5.5
6.5
7.5
8.5
9.5
10
6.5
H
8.5
10.5
12.5
14.5
16.5
18.5
20
(3.2)
(3.8)
V
(4.4)
(5.0)
(2.6)
(5.6)
(2.9)
(6.0)
(3.0)
Wall Firestop/Spacer
(SV8HF)
V + H = 40 feet (12.4 m) Max.
H = 20 ft. (6.2 m) Max.
Ceiling
Firestop/Spacer
(SV8BF)
Square termination (SV8HTS) shown.
See.Table 8..as.an.aid.in.venting.component.selection.for.
a.particular.range.of.exterior.wall.thicknesses.
Figure 31 - Top Vent - ONE 90 DEGREE ELBOW - ELBOW CONNECTION NOT DIRECTLY AT APPLIANCE
NOTE:.DIAGRAMS.&.ILLUSTRATIONS.ARE.NOT.TO.SCALE.
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HORIZONTAL VENT FIGURES/TABLES
(continued)
Wall Firestop/Spacer
(SV8HF)
Table D
V Minimum
H + H Maximum
1
H
feet
3.5
(meter)
(1.07)
(1.98)
(2.6)
feet
(meter)
(0.762)
(1.07)
(1.37)
(1.68)
(1.98)
(2.3)
2.5
3.5
4.5
5.5
6.5
7.5
8.5
9.5
10
6.5
H
1
V
8.5
10.5
12.5
14.5
16.5
18.5
20
(3.2)
(3.8)
Wall Firestop/Spacer
(SV8HF)
(4.4)
(5.0)
(2.6)
(5.6)
(2.9)
Ceiling
Firestop/Spacer
(SV8BF)
(6.0)
(3.0)
V + H + H = 40 feet (12.4 m) Max.
1
H + H = 20 ft. (6.2 m) Max.
1
See.Table 8 on Page 19 .as.an.aid.in.venting.component.selection.for.a.particular.range..of.
exterior.wall.thicknesses.
Figure 32 - Top Vent - TWO 90 DEGREE ELBOWS
Table E
H + H = 20 feet (6.2 m) Max.
1
H
1
V + V + H + H = 40 ft. (12.4 m) Max.
1
1
V = 2.5 feet Min. (0.762 m)
V + V = 11 feet (3.35 m) Min. for LSM40-2
1
Ceiling
Firestop/Spacer
(SV8BF)
V + V = 10.5 feet (3.2 m) Min. for LSM45-2
1
H
Wall Firestop/Spacer
(SV8HF)
V
1
V
Wall
Ceiling
Firestop/Spacer
Firestop/Spacer
(SV8HF)
(SV8BF)
See.Table 8 on Page 19..as.an.aid.in.venting.component.selection.for.a.particular.range.of.exterior.wall.thicknesses.
Figure 33 - Top Vent - THREE 90 DEGREE ELBOWS
NOTE:.DIAGRAMS.&.ILLUSTRATIONS.ARE.NOT.TO.SCALE.
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Refer.to.Section.A.for.millivolt.appliances.and.
Section.B.for.electronic.appliances..The.gas.
valve.is.set.in.place.and.pre-wired.at.the.factory.
on.both.models.
3..Remove.the..cover.plate's.knockout.and.then.
feed.the.power.supply.wire.through.the.knock-
out.opening.and.into.the.unit.junction.box.
4..Connect.the.black.power.supply.wire.to.the.
power outlet's.red.pigtail.lead.and.the.white.
power.supply.wire.to.the.common terminal.of.
the.outlet.as.shown.in.Figures 35 and 36..
5..Connect the ground supply wire to the
pigtail lead attached to outlet's green
ground screw.
6...Appliance-mounted.ON/OFF.burner.control.
switch.(rocker.switch).is.factory.installed..
Optional.wall-mounted..switch,.or.one.of.
the.optional.remote.control.kits.may.also.
be.used..
Step 4. FIELD WIRING
CAUTION
A. Millivolt Wiring (See Figure 34).–.
Ground supply lead must be con-
nected to the wire attached to the
green ground screw located on
the outlet box. See Figures 35 and
36. Failure to do so will result in a
potential safetyhazard. Theappli-
ancemustbeelectricallygrounded
in accordance with local codes or,
in the absence of local codes, the
National Electrical Code, ANSI/
NFPA70-latestedition.(InCanada,
the current CSA C22-1 Canadian
Electrical Code).
1...Appliance-mounted.ON/OFF.burner.control.
switch.(rocker.switch).is.factory.installed..
Optional.wall-mounted..switch,.or.one.of.
the.optional.remote.control.kits.may.also.
be.used..
2..If.wall-mounted.ON/OFF.control.is.selected.
mount.it.in.a.convenient.location.on.a.wall.
near.the.fireplace.
3..Wire.the.control.switch.within.the.millivolt.
control.circuit..using.the.15.feet.of.2.conduc-
tor.wire.supplied.with.the.unit.
7...If. wall-mounted. ON/OFF. control. is. to. be.
used,.mount.it.in.a.convenient.location.on.
a.wall.near.the.fireplace.
8..If.an.optional.control.is.to.be.used,.wire.it.in.
the.low.voltage.circuit.(see.Figure 35).
Note:Thesupplied15feetof2conductorwire
has one end of each conductor connected
to the gas valve circuit and the other end of
each conductor placed on top of the unit.
Note: The supplied 15 feet of 2 conductor wire
has one end of each conductor connected in
parallel with the appliance mounted ON/OFF
burner control switch and the other end of each
conductor placed on top of the unit.
CAUTION: DoNotconnecttheoptionalwall
switch to a 120V power supply.
CAUTION: Label all wires prior to disconnec-
tionwhenservicingcontrols.Wiringerrorscan
cause improper and dangerous operation.
4. If. an. optional. control. switch. is. installed,.
turn.the.appliance-mounted.ON/OFF.burner.
control.switch.to.the.OFF.position.
CAUTION: Do Not connect the optional wall
switch to a 120V power supply.
ATTENTION: Au moment de l'entretien des
commandes, étiquetez tous les fils avant de
les débrancher. Des erreurs de cáblage peu-
vent entraîner un fonctionnement inadéquat
et dangereux.
B. Electronic Wiring
(See Figures 35 and 36)
9..If. an. optional. control. switch. is. installed,.
turn.the.appliance-mounted.ON/OFF.burner.
control.switch.to.the.OFF.position.
10.After. the. wiring. is. complete,. replace. the.
cover.plate.
Note: The electronic appliance must be con-
nected to the main power supply.
Verify proper operation after servicing.
1..Route. a. 3-wire. 120Vac. 60Hz. 1ph. power.
supply.to.the.appliance.junction.box.
2..Remove.the.electrical.inlet.cover.plate.from.
the.side.of.the.unit.by.removing.the.plate's.
securing. screws. (see Figure 12 on Page
10).
S'assurer que l'appareil fonctionne adé-
quatement une fois l'entretien terminé.
Millivolt Wiring Diagram
WHITE
ELECTRONIC
If any of the original wire as supplied must be replaced,
it must be replaced with Type AWM 105° C – 18 GA. wire
WIRING DIAGRAM
120 VAC
EV2
EV1
PILOT BURNER
IGNITER-SENSOR
ASSEMBLY
BLUE (20)
Black
White
Ground
GAS VALVE
SeeFigure 36for detailed
drawing of junction box /
receptacle wiring
GROUND
Thermopile
Junction Box
CONNECTOR
BLK
Field Wired
Factory Wired
BLACK (20)
TRANSF
W
120 V.
WHITE (6)
APPLIANCE-MOUNTED ON/OFF SWITCH
*OR OPTIONAL WALL-MOUNTED ON/OFF SWITCH OR
OPTIONAL REMOTE CONTROL RECEIVER
GREEN LED
24 V.
APPLIANCE MOUNTED
ON/OFF SWITCH
*Turn the appliance-mounted ON/OFF burner control switch
to the OFF position if an optional
BLACK (16)
control switch is installed.
Schematic Representation Only
ELECTRONIC IGNITION
CONTROL BOARD
Figure 34
*WALL MOUNTED ON/OFF SWITCH (OPTIONAL)
OR REMOTE CONTROL RECEIVER
*Turn The Appliance-Mounted ON/OFF Burner Control Switch
To The OFF Position If An Optional Control Switch Is Installed
FACTORY WIRED
FIELD WIRED
Figure 35
21
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Secure all joints tightly using appropriate
toolsandsealingcompounds(ensurepropane
resistant compounds are used in propane ap-
plications). Itisrecommendedtosealaround
the gas line to prevent cold air leakage.
Step 6. CONNECTING GAS LINE
All.codes.require.a.shut-off.valve.mounted.in.
the.supply.line..The.orientation.of.the.shut-off.
valve. should. face. the. front.. . Figure 37 . il-
lustrates.two.methods.for.connecting.the.gas.
supply...A.Sediment.Trap.is.recommended.to.
prevent.moisture.and.debris.in.gas.line.from.
damaging.the.valve.
J-BOX/RECEPTIACLE
WIRING
120V, 60HZ, 1PH
Junction Box
Right Side
Modesty Panel
The.flex-line.method.is.acceptable.in.the.U.S.A..
where.local.codes.permit,.however,.Canadian.
requirements.vary.depending.on.locality..Instal-
lation.must.be.in.compliance.with.local.codes..
These.appliances.are.equipped.with.a.gas.flex-
line.for.use.in.connecting.the.unit.to.the.gas.line..
See.Figure 37 for.flex-line.description...The.
flex-line.is.rated.for.both.natural.and.propane.
gas..A.manual.shut.off.valve.is.also.provided.
with.the.flex-line..
Access Plate
Black
Tab
Intact
Hot
Hi-Lo
Extension Knob
Side of
Receptacle
Gas Valve
Neutral
Side of
ON/OFF Switch
Receptacle
The.gas.control.valve.is.located.on.the.right.
side.of.the.unit.
Tab Intact
Green
Ground
Screw
Field Wired
When.using.solid.gas.line.connector,.access.
the.valve.by.removing.the.front.door.assembly.
on.the.valve.access.side.and.the.access.plate.
(refer to Figure 38).
Factory Wired
Piezo
Igniter
Figure 36- J-BOX WIRING
Figure 38
The.millivolt.and.electronic.control.valve.has.a.
3/8".(10.mm).NPT.thread.gas.supply.inlet..
Step 5. REMOVE GLASS DOOR FRAME
Bring.the.shutoff.valve.on.the.end.of.the.flex-line.
over.to.the.hard.pipe.and.tighten.with.wrenches.
from.above.through.the.firebox.opening.
Remove.glass.door.assembly...See.Removing
Glass Enclosure Panels.on.Page 26.
Gas Flex Line Connector
3/8" NPT x
Flare Fitting
Gas
1/2" x 3/8" Flare
Shut-off Valve
Valve
Note: The gas supply line
must be installed in accor-
dance with building codes
3/8" Flex Tubing
by a qualified installer
approved and/or licensed
as required by the locality.
In the Commonwealth of
Massachusetts, installation
must be performed by a
licensed plumber or gas
fitter.
Gas
1/2" x 3/8"
Stub
Reducer
3/8" Nipple
3/8" Union
3/8" Close
Nipple
3/8" Shut-off Valve
Gas Solid Line Connector
Figure 37 - GAS CONNECTION
NOTE:.DIAGRAMS.&.ILLUSTRATIONS.ARE.NOT.TO.SCALE.
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TEST ALL CONNECTIONS FOR GAS LEAKS
(FACTORY AND FIELD):
Step 7. CHECKING APPLIANCE OPERA-
TION
MILLIVOLT
Hood
Igniter Rod
Thermocouple
Turn. on. burner. then. observe. the. individual.
tongues.of.flame.on.the.burner...Make.sure.
all.ports.are.open.and.producing.flame.evenly.
across.the.burner...If.any.ports.are.blocked,.or.
partially.blocked,.clean.out.the.ports.
WARNING
Never use an open flame to
3/8" Min
(9 mm)
check for leaks.
With.gas.line.installed.run.initial.system.check-
out. before. closing. up. the. front. of. the. unit..
Follow.the.pilot.lighting.instructions.provided..
For. piezo. igniter. location. refer. to Figure 38
(millivolt.appliances.only).
Pilot
Nozzels
Turn.on.gas.supply.and.test.for.gas.leaks.using.a.
gas.leak.test.solution.(also.referred.to.as.bubble.
leak.solution)..
Thermopile
Figure 39
Note: Using a soapy water solution is an
effective leak test solution but it is not recom-
mended, because the soap residue that is left
on the pipes/fittings can result in corrosion
over time.
Note: Lighting Instructions are also found on
the literature tag tied to the bracket above the
gas valve. To access the tag, reach into the
right side opening.
Electronic Appliance Checkout
To.light.the.burner,.turn.‘ON’.the.optional.remote.
wall. switch. or. turn. the. appliance. mounted.
ON/OFF.switch.to.the.“ON”.position...Ensure.
the. igniter. lights. the. pilot.. . The. pilot. flame.
should.engulf.the.flame.sensor.as.shown.in.
Figure 40.
When.first.lighting.the.appliance,.it.will.take.a.few.
minutes.for.the.line.to.purge.itself.of.air..Once.
purging.is.complete,.the.pilot.and.burner.will.
light.and.operate.as.indicated.in.the.instruction.
manual..Subsequent.lighting.of.the.appliance.
will.not.require.such.purging..Inspect.the.pilot.
flame. (remove. logs,. if. necessary,. handling.
carefully).
A..Light. the. appliance. (refer. to. the. lighting.
instructions.label.in.the.control.compartment.
or.in.the.Care.and.Operation.Instructions.
manual).
B..Brush.all.joints.and.connections.with.the.gas.
leak.test.solution.to.check.for.leaks..If.bubbles.
are.formed,.or.gas.odor.is.detected,.turn.the.
gas.control.knob.(off/pilot/on).to.the.“OFF”.
position...Either.tighten.or.refasten.the.leaking.
connection,.then.retest.as.described.above.
C. When.the.gas.lines.are.tested.and.leak.free.be.
sure.to.rinse.off.the.leak.testing.solution..
D..Re-install.the.access.plate,.making.certain.the.
gasket.has.not.been.damaged.
ELECTRONIC
Hood
Ignitor Rod
Millivolt Appliance Checkout
Flame
Sensor
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..
Pilot
Nozzels
The.flame.should.project.1".(25.mm).beyond.the.
hood.at.all.three.ports.(seeFigure39). .Replace.
logs.if.removed.for.pilot.inspection.
Figure 40
To.light.the.burner;.rotate.the.gas.valve.control.
knob.counterclockwise.to.the.“ON”.position.
(“ON”.will.be.at.the.bottom.side.of.the.valve).
and..turn.“ON”.the.appliance.mounted.ON/OFF.
switch.
NOTE:.DIAGRAMS.&.ILLUSTRATIONS.ARE.NOT.TO.SCALE.
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Step 8. LOG, VERMICULITE, VOLCANIC STONE AND GLOWING
EMBER PLACEMENT
REFERENCE - Firebox Accessories / Parts
Cat. No.
88L53
80L42
H6319
Model
FGE
Description
Bag of Glowing Embers
Bag of Volcanic Stone
Bag of Vermiculite
WARNING
FDVS
• 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.
• The size and position of the log set was engi-
neered to give the appliance a safe, reliable
and attractive flame pattern. Any attempt to use
a different log set in the fireplace will void the
warranty and will result in incomplete combus-
tion, sooting, and poor flame quality.
• 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, volcanic
stone, vermiculite, embers and logs.
Figure 41
• 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.
For Propane Gas Only, Do Not Place Embers On Main Ports
• If logs are not installed according to the log
installationinstructions,flameimpingementand
impropercombustioncouldoccurandresultinsoot
and/or excessive production of carbon monoxide
(CO), a colorless, odorless, toxic gas.
Step 1.. Install.the.ceramic.panels.per.the.instructions.provided.in.kit.
(reference form #750182M).
Step 2.. Place.a.mixture.of.volcanic.stone.and.vermiculite.around.the.
Glowing Embers (Rockwool)
burner.as.shown.in.Figure 43.
Figure 42
Step 3...Separate.the.glowing.embers.(rockwool).into.pieces.about.the.
size.of.a.quarter.(see.Figure 41)...Keep.the.pieces.fluffed,.not.
matted...Distribute.these.pieces.over.the.burner.as.shown.in.
Figure 42...Do.not.use.more.than.necessary...When.properly.
positioned,.the.Glowing.Embers.will.cover.approximately.75%.
of.the.burner.on.natural.gas...For.propane.gas,.do.not.place.
embers.on.main.ports.
Note: Excessive use of embers may result in sooting or poor flame.
This appliance is provided with enough Glowing Embers for several
applications, do not feel compelled to use all that is in a new bag. For
best glowing effect, replace the ember material annually. Replacement
Glowing Embers are available (Catalog Number 88L53).
Step 4...Position.the.individual.logs.as.shown.in.Figures 44 through 48..
Logs.should.be.placed.in.the.order.shown...Place logs 2 and 3
against the pins on the grate, NOT over them.
Mixture Of Volcanic Stone And Vermiculite
Figure 43 - (LSM45-2 Shown)
.
Proper.log.and.twig.placement.is.critical.to.encourage.outstand-
ing.flame.appearance.and.prevent.sooting...When.positioned.
properly.as.shown,.twigs.will.be.positioned.between.flame.
peaks.and.will.not.impinge.any.flames...Positioning.is.the.same.
for.all.colors.of.log.sets.
NOTE:.DIAGRAMS.&.ILLUSTRATIONS.ARE.NOT.TO.SCALE.
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LSM40-2 & LSM45-2 Log Placement
2
3
5
2
4
6
1
7
Align Groove At The Bottom Of Log (2) Over
The Grate And Push It Towards The Rear.
Figure 46
Log Number
Description
1
2
3
4
5
6
7
Log,.Center
Log,.Rear
Log,.Center/Left
Log,.Center/Right
Log,.Rear/Top
Log,.Front/Left
Log,.Front/Center
3
4
Figure 44
Engage Logs (3 & 4) With The Grate Pins And Align Groves At
The Bottom Of The Logs Over The Grate.
1
Figure 47
Align Hole At Bottom Of Log (5)
Over The Pin On Log (2).
7
6
5
2
Align Two Holes At Bottom Of Log (1)
Over The Pins On The Gas Burner.
Figure 45
Engage Log (6) With The Grate Pin
And Align Groove At The Bottom Of
The Log Over The Grate.
Engage Log (7)
With The Pin On
Log (4).
4
Figure 48
NOTE:.DIAGRAMS.&.ILLUSTRATIONS.ARE.NOT.TO.SCALE.
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Installing Glass Enclosure Panel
(see Figure 49)
Step 9. INSTALLATION AND REMOVAL
OF GLASS DOOR
Step 10. BURNER ADJUSTMENTS
Flame Appearance and sooting
Retrieve. the. glass. door.. Visually. inspect. the.
gasket.on.the.backside.of.the.frame..Gasket.
surface. must. be. clean,. free. of. irregularities.
and.seated.firmly..
Proper.flame.appearance.is.a.flame.which.is.
blue.at.the.base.and.becomes.yellowish-orange.
in.the.body.of.the.flame...When.the.appliance.
is.first.lit,.the.entire.flame.may.be.blue.and.will.
gradually.turn.yellowish-orange.during.the.first.
15.minutes.of.operation..After.15.minutes.of.
operation,.if.the.flame.is.blue,.or.if.the.flame.is.
orange.with.evidence.of.sooting.(black.tip),.the.
air.shutter.opening.may.need.to.be.adjusted.
WARNING
•.When reinstalling the glass
door, the door latch screws
must be securely tightened
to prevent the glass door
from falling out, which could
potentially cause damage and
possible injury.
• Donotattempttosubstitutethe
materials used on this door,
or replace cracked or broken
glass.
• Handlethisglasswithextreme
care! Glass is susceptible to
damage – Do not scratch or
handleroughlywhilereinstall-
ing the glass door frame.
• The glass door of this appli-
ance must only be replaced
as a complete unit as provided
by the manufacturer. Do not
attempt to replace broken,
crackedorchippedglasssepa-
rately.
Position.the.door.in.front.of.the.firebox.opening.
with.the.top.of.the.door.held.away.from.the.
fireplace.(Figure 49)...Lower.the.bottom.of.the.
door.assembly.on.the.bottom.door.track.and.
set.on.padded.surface...Pivot.the.door.up.after.
engaging.and.centering.in.the.base.channel.
.
Using.a.Phillips.screwdriver,.fasten.the.door.
frame.to.the.door.latch.with.the.two.(2).screws..
The.latch.should.pull.forward.to.engage.the.
door.frame.
If. the. air. shutter. opening. is. closed. too. far,.
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.surfaces.adjacent.to.the.vent.
termination...
Install.the.door.modesty.shield.on.top.flange.
glass.door.as.follows:..grab.the.door.modesty.
shield. with. both. hands,. with. the. open. hem.
going.down.and.engage.it.with.the.upper.lip.
of.the.glass.door.frame.by.pushing.it.all.the.
way.down...Make.sure.the.installed.shield.is.
firmly.in.place.
Sooting.is.caused.by.incomplete.combustion.in.
the.flames.and.lack.of.combustion.air.entering.
the.air.shutter.opening..To.achieve.a.warm.yel-
lowish-orange.flame.with.an.orange.body.that.
does. not. soot,. the. shutter. opening. must. be.
adjusted.between.these.two.extremes..
With.the.firescreen.hanging.on.the.screen.rod,.
insert.the.right.side.of.the.rod.into.the.existing.
hole.on.the.right.modesty.panel...Bend.down.
the.rod.at.the.center.and.drop.the.left.end.into.
the.slot.on.the.left.modesty.panel,.being.careful.
not.to.scratch.the.paint.
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.
Top Flange Glass door
• Do not attempt to touch the
frontenclosureglasswithyour
hands while the fireplace is in
use.
Glass Door Latch (2)
assembly
•. The.more.offsets.in.the.vent.system,.the.larger.
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..
WARNING
Do not operate appliance with
theglassfrontremoved,cracked
or broken.
Screws
The.following.chart.is.provided.to.aid.you.in.
achieving. the. correct. air. shutter. adjustment.
for.your.installation.
AVERTISSEMENT
Firebox Floor
Ne pas utiliser l'appareil si le
panneau frontal en verre n'est
pas en place, est craqué ou
brisé.
Glass Door Assembly
Air Shutter Adjustment Guidelines:
INSTALLING THE GLASS DOOR
Amount of
Primary Air
Flame
Color
Air Shutter
Adjustment
Figure 49
Only doors certified with the appliance
shall be used.
If air shutter is
closed too far
Flame will Air shutter
be orange gap should be
increased
If air shutter is
open too far
Flame will Air shutter
be blue gap should be
decreased
Seules des portes certifiées pour cet
appareil doivent être utilisées.
CAUTION: DO NOT abuse glass door by
striking or slamming shut.
NOTE:.DIAGRAMS.&.ILLUSTRATIONS.ARE.NOT.TO.SCALE.
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Burner Air Shutter Adjustment Procedure
Air Shutter
Opening
WARNING
• Air shutter adjustment should
only be performed by a quali-
fied professional service
technician.
• Ensure that the front glass
door assembly is in place and
sealed After adjustment.
Main Burner Factory Air Shutter
Opening Setting - Inches (millimeter)
Venturi
Orifice
Model
LSM40-2
LSM45-2
Nat.Gas Propane Gas
1/16 (1.59)
1/16 (1.59)
9/32 (7.14)
9/32 (7.14)
Gas
Valve
Burner
CAUTION
Soot will be produced if the air
shutter is closed too much. Any
damageduetocarboningresult-
ing from improperly setting the
air shutter is not covered under
the warranty.
Venturi
Figure 50
(Birch Logs Shown) LSM40-2
To.adjust.the.flame,.rotate.the.air.shutter.toward.
the.back.or.toward.the.front.of.the.fireplace..
Position.the.air.shutter.to.the.factory.setting.as.
shown.in.the.table.in.Figure50...Allow.the.burner.
to.operate.for.at.least.15.minutes...Observe.the.
flame.continuously..If.it.appears.weak.or.sooty.
as.previously.described,.adjust.the.air.shutter.
until.the.flame.appearance.is.as.desired..
Usetheextensionknob(refertoFigure38), to
adjust the flame height as desired, by sliding
the knob over the variable flame adjustment
knoblocatedonthefrontofthevalve. Replace
the extension knob back to the hanger after
the 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...When.satisfied.
that.the.appliance.operates.properly,.proceed.
to.finish.the.installation.
Figure 51 - Burner Flame Appearance
(Rustic Oak Logs Shown) LSM45-2
Leave.the.control.knob.in.the.ON.position.and.
the.remote.switch.OFF.
Figure 52 - Burner Flame Appearance
NOTE:.DIAGRAMS.&.ILLUSTRATIONS.ARE.NOT.TO.SCALE.
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Non-combustible.materials,.such.as.surrounds.and.other.appliance.trim,.
may.be.installed.on.the.appliance.front.face.with.the.exceptions..
FINISHING REQUIREMENTS
Wall Details
Vertical.installation.clearances.to.combustible.mantels.vary.according.
to.the.depth.of.the.mantel...See.Figure 9...Mantels.constructed.of.non-
combustible.materials.may.be.installed.at.any.height.above.the.appliance.
opening.
Complete.finished.interior.wall..To.install.the.appliance.facing.flush.with.
the.finished.wall,.position.framework.to.accommodate.the.thickness.of.
the.finished.wall.(Figure 53).
3" Min.
Combustible.materials.may.project.beyond.the.side.of.the.fireplace.opening.
as.long.as.it.is.kept.within.the.shaded.area.illustrated.in.Figure 10.
Combustible
Finished Wall
Materials
(76 mm)*
Header
(2x4’s)
Combustible
materials are
allowed above
this point on
the face of the
appliance.
2 Foot Vertical
Vent & 90° Elbow
1
*
8-3/8" Min.
(213 mm)
Top of
Appliance
The gray shaded
area must be
non-combustible
or Dura Rock
Spacers
Top of Door Frame
Finish Combustible
Or Non-Combustible
Material
Front Face
Of Fireplace
Fireplace (right side)
Floor Panel
Figure 54
Installations with horizontal terminations which have minimum
vertical vent height only will require 4”(102mm) minimum
side clearance as shown in shaded zone above. All other
installations require 1" (25mm) minimum side clearance as
specified in Table 4 on Page 5.
1
Glass Door
Assembly
Fireplace
* Insulation is NOT ALLOWED in the clearance zones around vent
components. Keep this area free from combustible materials.
Figure 53
1/8 Inch
Minimum
A.hearth.extension.is.not.required.with.this.appliance..If.a.hearth.extension.
is.used,.there.are.two.methods.of.installation...One,.the.finish.combustible.
or.non-combustible.material.could.be.ended.by.butting.up.against.the.
front.face.of.the.fireplace.and.the.floor.panel.(refer to Figure 54).
Two,.the.finish.combustible.or.non-combustible.material.could.be.ended.
below.the.fireplace (refer to Figure 55)...Remove.the.floor.panel.as.shown.
in.Figure 54.by.removing.the.screws.on.the.right.side.of.the.panel.and.
sliding.the.left.side.away.from.the.tab...Discard.the.screws.and.floor.panel..
It is critical that there is at least a 1/8" gap between the bottom of the
door track and the surface of the finish material.
Finish Combustible
Or Non-Combustible
Material
Door Track
Bottom Of
Fireplace
Figure 55
28
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Step 11..ATTACHING SAFETY IN OPERATION WARNINGS
It is the installers responsibility to ensure these warnings are properly affixed during installation. These warning labels are a
critical step in informing consumers of safe operation of this appliance.
ATTACHING SAFETY IN OPERATION WARN-
INGS
APPOSITION DES MISES EN GARDE RELATIVES COLOCACIóNDEADVERTENCIASDESEGURIDAD
à LA SÉCURITÉ D’UTILISATION EN OPERACIóN
It. is. required. that. the. safety. instruction. labels.
furnished.with.the.fireplace.be.affixed.to.the.op-
eration.and.control.point.of.the.fireplace...A.safety.
instruction.label.must.be.affixed.to.the.wall.switch.
plate.where.the.fireplace.is.turned.on.and.off.(See
Figure A).or.wall.thermostat.(See Figure B).and.if.
used.on.the.remote.control.handheld.transmitter.
(Figure C)...To.properly.complete.the.installation.of.
this.fireplace,.locate.the.multi-lingual.adhesive.labels.
provided.with.the.Care.and.Operation.Instructions.
and.proceed.as.follows:
Il.est.impératif.que.les.étiquettes.de.sécurité.fournies. Se. requiere. que. las. etiquetas. de. instrucciones. de.
avec. le. foyer. soient. collées. à. côté. des. dispositifs. seguridad.incluidas.con.la.chimenea.se.coloquen.en.
de.contrôle.du.foyer...Une.étiquette.de.sécurité.doit. el.punto.de.operación.y.control.de.la.misma..Se.debe.
être.collée.sur.la.plaque.de.l’interrupteur.contrôlant. colocar. una. etiqueta. de. instrucciones. de. seguridad.
l’allumage.du.foyer.(voirFigureA).ou.sur.le.thermostat. en.la.placa.del.interruptor.de.pared.desde.el.cual.se.
mural.(voir Figure B).et,.le.cas.échéant,.sur.le.boîtier. enciende.y.se.apaga.la.chimenea.(verlaFiguraA).o.en.el.
de.la.télécommande.(FigureC)..Pour.achever.l’instal- termostato.de.pared.(verlaFiguraB).y.en.el.transmisor.
lation.correcte.de.ce.foyer,.procédez.comme.suit.avec. de.control.remoto.(FiguraC).si.se.usa..Para.completar.
les.étiquettes.adhésives.en.langues.étrangères.fournies. correctamente. la. instalación. de. esta. chimenea,.
avec.les.instructions.d’utilisation.et.d’entretien.:
encuentre.las.etiquetas.adhesivas.multilingües.incluidas.
con.las.instrucciones.de.cuidado.y.operación.y.haga.
lo.siguiente:
1.. Repérez.l’interrupteur.ou.le.thermostat.mural.qui.
1.. Locate.the.wall.switch.or.wall.thermostat.that.
controls.the.fireplace.(verify.the.switch.operates.
the.fireplace.by.turning.it.on.and.off)...Clean.the.
wall.switch.plate.or.wall.thermostat.thoroughly.
to.remove.any.dust.and.oils..Affix.the.label.to.
the.surface.of.the.plate.of.the.wall.switch.that.
controls. the. fireplace. (Figure A). or. the. wall.
thermostat.(Figure B)....Choose.the.language.
primarily.spoken.in.the.home..If.unknown,.affix.
the.English.language.label.
2.. If.a.remote.control.is.used.to.control.the.fireplace,.
locate.the.transmitter.and.clean.it.thoroughly.
to.remove.any.dust.and.oils...Affix.the.label.to.
the.surface.of.handheld.transmitter.(Figure C)..
Choose.the.language.primarily.spoken.in.the.
home..If.unknown,.affix.the.English.language.
label.
contrôle. le. foyer. (vérifiez. que. l’interrupteur.
contrôle.le.fonctionnement.du.foyer.en.le.faisant. 1.. Identifique.el.interruptor.o.el.termostato.de.pared.
basculer.de.Marche.à.Arrêt,.et.vice-versa)..Nettoyez.
soigneusement.la.plaque.murale.de.l’interrupteur.
ou.le.thermostat.mural.pour.éliminer.la.poussière.
et.les.traces.de.graisse.ou.d’huile..Collez.l’étiquette.
sur.la.surface.de.la.plaque.de.l’interrupteur.mural.
qui.contrôle.le.foyer.(Figure A).ou.du.thermostat.
mural. (Figure B).. Choisissez. la. langue. qui. est.
principalement. parlée. dans. la. résidence. du.
propriétaire..En.cas.de.doute,.collez.l’étiquette.en.
anglais.
que.controla.la.chimenea.(verifique.que.el.interruptor.
opera.la.chimenea.encendiéndola.y.apagándola)..
Limpie.bien.la.placa.del.interruptor.o.el.termostato.
de.pared.para.quitar.el.polvo.y.aceite..Pegue.la.
etiqueta.en.la.superficie.de.la.placa.del.interruptor.que.
controla.la.chimenea.(Figura A).o.en.el.termostato.
de. pared. (Figura B). Seleccione. el. idioma. que.
más.se.habla.en.la.casa..Si.no.sabe.cuál.es,.use.la.
etiqueta.en.inglés.
2.. Si. se. usa. un. control. remoto. para. controlar. la.
chimenea,.encuentre.el.transmisor.y.límpielo.bien.
para.quitar.el.polvo.y.aceite..Pegue.la.etiqueta.en.
la.superficie.del.transmisor.(Figura C). Seleccione.
el.idioma.que.más.se.habla.en.la.casa..Si.no.sabe.
cuál.es,.use.la.etiqueta.en.inglés.
2.. Si.une.télécommande.est.utilisée.pour.contrôler.
le.foyer,.nettoyez.la.soigneusement.pour.éliminer.
la.poussière.et.les.traces.de.graisse.ou.d’huile..
Collez. l’étiquette. sur. le. boîtier. de. la. télé-
commande.(FigureC)..Choisissez.la.langue.qui.est.
3...If.you.are.unable.to.locate.the.labels,.please.call.
Lennox.Hearth.Products.or.your.nearest.Lennox.
Hearth. Products. dealer. to. receive. additional.
safety.instruction.labels.free.of.charge.
principalement.parlée.dans.la.résidence.du.proprié- 3...Si.no.puede.encontrar.las.etiquetas,.sírvase.llamar.
taire..En.cas.de.doute,.collez.l’étiquette.en.anglais.
3...Si. vous. ne. trouvez. pas. les. étiquettes,. veuillez.
appeler.Lennox.Hearth.Products.ou.votre.distribu-
teur.Lennox.Hearth.Products.local.pour.recevoir.
gratuitement.des.étiquettes.supplémentaires.
a. Lennox. Hearth. Products. o. al. distribuidor. de.
Lennox.Hearth.Products.más.cercano.para.recibir.
etiquetas.de.instrucciones.de.seguridad.adicionales.
gratuitas..
Cat..No..H8024.Replacement.Label.Kit.
Juego.de.etiquetas.de.repuesto.-.Nº.de.cat..H8024.
LENNOx HEARTH PRODUCTS
1-800-9-LENNOx
Étiquettes.de.remplacement,.n°.cat..H8024.
LENNOx HEARTH PRODUCTS
1-800-9-LENNOx
LENNOx HEARTH PRODUCTS
1-800-9-LENNOx
Note: English is red text on clear label. French and
Spanish are white text on black label.
Nota: La etiqueta en inglés es transparente con texto
rojo. Las etiquetas en francés y español son negras
con texto blanco.
Remarque : Le texte anglais est rouge sur un support
transparent. Le texte français et espagnol est blanc
sur un support noir.
DIAGRAMMES DES ÉTIQUETTES DE SÉCURITÉ / DIAGRAMAS DE ETIQUETAS DE SEGURIDAD / SAFETY LABEL DIAGRAMS
WARNING
Hot Fireplace Will Cause
Severe Burns
ADVERTENCIA
La chimenea caliente
causará quemaduras graves
Nunca permita que los niños
toquen el vidrio ni otras
partes de la chimenea
AVERTISSEMENT
Un foyer chaud peut causer
de graves brûlures
Ne laissez jamais un enfant
toucher à la vitre ou à toutes
autres parties du foyer
Never Allow Children to
Touch Glass or other Fire-
place Parts
Figure C
Figure B
Figure A
ADVERTENCIA
La chimenea caliente cau-
sará quemaduras graves
Nunca permita que los niños
toquen el vidrio ni otras
partes de la chimenea
A
VE
Un foyr cRd peut causer
TISSEMENT
de graves brûlure
Ne laissez jamais un enfant
toutes
autres parties du foyer
toucher
à
la vitre ou
à
NOTE:.DIAGRAMS.&.ILLUSTRATIONS.ARE.NOT.TO.SCALE.
29
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INSTALLATION ACCESSORIES
Listed Secure Vent™ Components
H2262
SV8SU
Support Strap
Support Plate
Cat.
No.
Model
No.
Description
H2266 SV8HTS Horizontal Square
Termination with
Firestop/Spacer
(H2260) and Adap-
tor (H2267)
H2263
H3908
SV8SP
SV8ARSA
Attic Insulation
Shield (adjustable
12” to 22”)
H2265 SV8VTR Vertical Termination
CTSO-33/44 Shrouds
CTSO-46 Shroud
for double
terminations
1
typ.
for Single terminations
C
1
typ.
2a
2b
typ.
2
C
H2250 SV8L6
6 inch (152mm)
Vent Section
E
2a
D
E
2b
2a
D
H2251 SV8L12 12 inch (305mm)
Vent Section
2b
2a
B
B
A
Ref..Form.#750,193M
A
H2252 SV8L24 24 inch (610mm)
Vent Section
H2253 SV8L36 36 inch (914mm)
Vent Section
Open Top Shroud Kits
Inches (millimeters)
H2254 SV8L48 48 inch (1219mm)
Vent Section
Cat. No. Model
H1985 CTSO-33
A
B
C
D
*E
3
(76)
37-5/8
(955)
37-5/8
(955)
7-1/2
(191)
24-1/2
(622)
H2255 SV8LA
Telescopic Section
48-5/8
(1235)
48-5/8
(1235)
7-1/2
(191)
24-1/2
(622)
3
H2256 SV8E45 45 Degree Elbow
H1987
H1986 CTSO-46
CTSO-44
(76)
48-5/8
(1235)
73 1/4
(1860)
7-1/2
(191)
24-1/2
(622)
3
(76)
H2257 SV8E90 90 Degree Elbow
The following flashings come packaged
with a storm collar
A
H3236 SV8F
H2258 SV8FA
Flat Roof Flashing
B
1/12 to 7/12 Adjust-
able Flashing
D
C
H2259 SV8FB
7/12 to 12/12 Ad-
justable Flashing
Ref..Form.#750,194M
H3237 SV8SC6 Storm Collars,
6 pack
Closed Top Shroud Termination Kits
Inches (millimeters)
Cat. No.
H1988
Model
A
B
C
D
H2260 SV8HF
H2261 SV8BF
Firestop/Spacer
- Horizontal
(3 - 1 - 1 spacing)
34"
(864)
5"
(127)
34"
(864)
34"
(864)
CTSA-33
Firestop/Spacer
- Vertical
(1 - 1 - 1 spacing)
NOTE:.DIAGRAMS.&.ILLUSTRATIONS.ARE.NOT.TO.SCALE.
NOTE:.DIAGRAMS.&.ILLUSTRATIONS.ARE.NOT.TO.SCALE.
30
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Step 1..TURN OFF THE GAS SUPPLY TO THE
APPLIANCEanddisconnectpowersupply atthe
circuit breaker. Ensure appliance is cold...
GAS CONVERSION KITS
WARNING
CAUTION: THE GAS SUPPLY SHALL BE
SHUT OFF PRIOR TO DISCONNECTING THE
ELECTRICALPOWER,BEFOREPROCEEDING
WITH THE CONVERSION.
Thisconversionkitshallbeinstalledbyaqualifiedserviceagencyinaccor-
dance with the manufacturer’s instructions and all applicable codes and
requirementsoftheauthorityhavingjurisdiction.Iftheinformationinthese
instructionisnotfollowedexactly,afire,explosionorproductionofcarbon
monoxide may result causing property damage, personal injury or loss of
life.Thequalifiedserviceagencyisresponsiblefortheproperinstallation
of this kit. The installation is not proper and complete until the operation
of the converted appliance is checked as specified in the manufacturer’s
instructionssuppliedwiththekit.Thequalifiedserviceagencyperforming
this installation assumes responsibility for this conversion.
ATTENTION. AVANT D’EFFECTUER
LA CONVERSION, COUPEZ D’ABORD
L’ALIMENTATION EN GAZ, ENSUITE,
COUPEZ L’ALIMENTATION ÉLECTRIQUE.
Step 2.. Remove. the. front. glass. door/frame.
and.the.access.plate.from.the.appliance..See.
Figures 38 and 49.
Step 3..Carefully.remove.the.logs.and.the.grate.
assembly...Exercise care so as not to break
the logs.
AVERTISSEMENT
Cette trousse de conversion doit être installée par un technicien agréé,
selonlesinstructionsdufabricantetselontouteslesexigencesettousles
codes pertinents de l’autorité compétente. Assurez-vous de bien suivre
les instructions dans cette notice pour réduire au minimum le risque
d’incendie,d’explosionoulaproductiondemonoxydedecarbonepouvant
causer des dommages matériels, des blessures ou la mort. Le tecnicien
agrééestresponsabledel’installationdecettetrousse.L’installationn’est
pas adéquate ni complète tant que le bon fonctionnement de l’appareil
convertin’apasétévérifiéselonlesinstructionsdufabricantfourniesavec
la trousse. Le fournisseur de service qualifié ayant réalisé l'installation
assume les responsabilités liées à la conversion.
Step 4..Refer.to.Figure 56. .Remove.the.burner.
assembly.with.attached.venturi.tube. ..
Burner Assembly
In Canada:
Kit.part.numbers.are.listed.here..and.the.follow-
THE CONVERSION SHALL BE CAR-
RIED OUT IN ACCORDANCE WITH THE
REQUIREMENTS OF THE PROVINCIAL
AUTHORITIES HAVING JURISDICTION
AND IN ACCORDANCE WITH THE RE-
QUIREMENTS OF THE CAN/CSA-B149.1
INSTALLATION CODE.
ing.steps.detail.the.conversion.procedure.
Gas Valve Assembly
Natural Gas To Propane Gas
Conversion Kit
Model No.
LSM40MP-2
LSM45MP-2
LSM40EN-2
LSM45EN-2
Unit Type
Millivolt
Cat. No.
H2268
H4811
H3238
H4813
Burner Orifice
Millivolt
LA CONVERSION DEVRA êTRE EF-
FECTUÉE CONFORMÉMENT AUx RE-
COMMANDATIONS DES AUTORITÉS
PROVINCIALES AYANT JURIDICTION
ET CONFORMÉMENT AUx ExIGENCES
DU CODE D'INSTALLATION CAN/CSA-
B149.1.
Electronic
Electronic
Figure 56
Step 5...Refer.to.Figure 57 on Page 32..and.
the.instructions.provided.with.the.kit...Using.
a.Torx.T20.(with.1/4”.shank.and.center.hole),.
remove.and.discard.the.three.pressure.regula-
tor.mounting.screws...Remove.the.pressure.
regulator,. spring,. poppet,. diaphragm. and.
bushing....Discard all removed components..
Ensure.the.rubber.gasket.installed.on.the.back.
of.the.replacement.pressure.regulator.is.properly.
positioned.and.install.the.new.pressure.regula-
tor.using.the.new.screws.supplied.with.the.kit..
Tighten.screws.to.25.In..lb..torque.
Propane to Natural Gas
Conversion Kit
Model No.
Unit Type
Millivolt
Millivolt
Cat. No.
Gas.conversion.kits.are.available.to.adapt.your.
appliance.from.the.use.of.one.type.of.gas.to.
the.use.of.another..These.kits.contain.all.the.
necessary.components.needed.to.complete.the.
task.including.labeling.that.must.be.affixed.to.
ensure.safe.operation.
LSM40EN-2
LSM45EN-2
H2269
H2271
NOTE:.DIAGRAMS.&.ILLUSTRATIONS.ARE.NOT.TO.SCALE.
31
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Burner Orifice Sizes
Elevation 0-4500 feet ( 0-1372 meters)
SIT Millivolt Pilot Assembly Shown
SIT Millivolt Gas
Valve Shown
Model
Nat.Gas
Propane
drill size (inches)
drill size (inches)
LSM40-2 .1405" (#28)* .086" (#44)*
Pressure
Regulator
• H2286
• H2287
Thermopile
(on millivolt
pilot assem-
LSM45-2 .161" (#20)*
.093" (#42)*
• H2288
• H4816
blies only)
* Standard size installed at factory
• Part /Cat. Number
Pilot
Orifice
Table 9
Remove
These
Components
SIT Electronic Pilot
SIT Electronic Gas Valve
L O
H I
Figure 59
Pilot
Orifice
Pressure
Regulator
Step8..Reassemble.the.remaining.components.
by. reversing. the. procedures. outlined. in. the.
preceding.steps...
Millivolt & Electronic Pilot Assemblies
Millivolt & Electronic Gas Valves
Figure 57
Figure 58
Step 9..Attach.the.conversion.label.provided.
in.the.conversion.kit.to.the.rating.plate.on.the.
appliance.
Step 6...Refer.to.Figure 58 .and.remove.the.
pilot.hood.assembly.to.access.the.hexed.pilot.
orifice...Remove.and.replace.the.orifice.with.
the.one.provided.with.the.kit.
Step 7...(Refer.to.Figure 56 on Page 31 and
Figure 59)
Step 10..Turn.on.gas.supply.and.test.for.gas.
leaks.
VERIFY THE PROPER ORIFICE SIZE BE-
FORE INSTALLING IT.
Step 11.. Attach. manometer. to. the. manifold.
side.pressure.test.fitting.and.verify.manifold.
pressure.reads.3.5.inches.water.column.(0.87.
kPa). for. natural. gas,. and. 10.0. inches. water.
column.(2.49.kPa).for.propane.gas.
A..Remove..the.orifice.from.the.manifold.and.
replace.it.with.the.one.provided.in.the.kit..See.
the.following.table.for.orifice.sizes.for.natural.
and.propane.models. Figure 59 illustrates.
the. orifice.. . Use. pipe. joint. compound. or.
Teflon.tape.on.all.pipe.fittings.before.installing.
(ensure.propane.resistant.compounds.are.
used.in.propane.applications,.do.not.use.pipe.
joint.compounds.on.flare.fittings)..
ALWAYS TEST PRESSURES WITH THE VALVE
REGULATOR CONTROL AT THE HIGHEST
SETTING.
B..Retrieve.the.burner.and.slide.the.venturi.tube.
over.the.orifice...Set.the.burner.assembly.
into.its.position.and.secure.it.
C..Reinstall.the.grate.assembly..
NOTE:.DIAGRAMS.&.ILLUSTRATIONS.ARE.NOT.TO.SCALE.
Lennox.Hearth.Products.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.
Printed.in.U.S.A..©.2005.by.Lennox.Hearth.Products
P/N 850,026M REV. E 03/2010
1508 Elm Hill Pike, Suite 108 • Nashville, TN 37210
32
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