Lennox Hearth MLBV-35PM Manuel utilisateur

Marque
Lennox Hearth
Modèle
MLBV-35PM
Catégorie
Cheminées
Taper
Manuel utilisateur
ITS Report No. 100017854
B-Vent Gas Fireplaces
MLBV 35/40 Models
MODELS
CARE AND OPERATION INSTRUCTIONS
P/N 506017-03 Rev. B 06/2011
This manual is one of a set of two supporting this product.
Refer to P/N 506015-04 for Installation Instructions.
Ce manuel est disponible en francais, simplement
en faire la demande. Numéro de la pièce 506223-22.
MILLIVOLT:
MLBV-35NM
MLBV-35PM
MLBV-40NM
MLBV-40PM
ELECTRONIC:
MLBV-35NE
MLBV-40NE
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
INSTALLATEUR : Laissez cette notice avec l'appareil.
CONSOMMATEUR : Conservez cette notice pour consultation ultérieure.
DON’T
THROW
IT AWAY!
This manual contains
important operating
and safety
information.
Wait...
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See Page 2 For Details
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SAFETY
GUARD
PROTECTS AGAINST BURNS
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.
WARNING: If the information in these instructions
is not followed exactly, a fire or explosion may
result, causing property damage, personal injury,
or death.
WARNING
/
AVERTISSEMENT
/
AVISO
• HOT GLASS WILL CAUSE
BURNS.
• DO NOT TOUCH GLASS
UNTIL COOLED.
• NEVER ALLOW CHILDREN
TO TOUCH GLASS.
• UNE SURFACE VITRÉE CHAUDE
PEUT CAUSER DES BRÛLURES.
• LAISSER REFROIDIR LA SURFACE
VITRÉE AVANT D'Y TOUCHER.
• NE PERMETTEZ JAMAIS À UN ENFANT
DE TOUCHER LA SURFACE VITRÉE.
• EL VIDRIO CALIENTE
CAUSARÁ QUEMADURAS.
• USTED DEBE NUNCA
TOCAR EL VIDRIO CALIENTE.
• LOS NIÑOS DEBEN NUNCA
TOCAR EL VIDRIO.
- Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any other
appliance.
- WHAT TO DO IF YOU SMELL GAS:
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any
phone in your building.
• Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
• If you cannot reach your gas supplier, call the fire
department.
- Installation and service must be performed by a
qualified installer, service agency or the gas supplier.
- 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.
- QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ :
• 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 fournisseur.
• 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.
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Safety and Your Fireplace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
FREE Safety Guard Offer (Protects Against Burns) . . . . . . . . . . . . . . . . . 2
Important Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Attaching the Safety-in-Operation Warnings . . . . . . . . . . . . . . . . . . . . . 5
[EN FRANÇAIS] L’information de sûreté importante . . . . . . . . . . . . . . . 3–4
Apposition des mises en garde relatives à la sécurité d’utilisation . . . . 5
[EN ESPAÑOL] Información importante de seguridad . . . . . . . . . . . . . . 3–4
Colocación de advertencias de seguridad en operación . . . . . . . . . . . . 5
WHAT'S INSIDE
2
LENNOX HEARTH PRODUCTS • MERIT
®
SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • CARE AND OPERATION INSTRUCTIONS
Safety and
Your Fireplace
To prevent severe burns and injuries, install
a screen or physical barrier to prevent direct
contact with the glass.
To order a FREE Lennox
®
SAFETY GUARD
for your fireplace, see details at left.
Follow the safety instructions below
and be sure everyone in your household
understands this burn hazard:
•The surfaces on your fireplace get
EXTREMELY HOT!
•The glass on the front
of the fireplace reaches
EXTREMELY HIGH
temperatures and can
cause severe burns if touched.
•Keep children away from an operating
fireplace. Closely supervise children in
any room where a fireplace is operating
to prevent contact with glass.
•Keep clothing, furniture,
gasoline, and other
flammable liquids away
from the fireplace.
•Even after the gas is turned off, fireplace
surfaces remain extremely hot.
Be sure to attach the enclosed Safety-in-
Operation Warnings where you turn on your
replace, to help remind everyone of the
dangers associated with high temperatures
(see Page 5).
Read Important Safety Information on
Page 4.
All parts of your Lennox
Hearth Products fireplace
get EXTREMELY HOT!
TABLE OF CONTENTS
Safety and Your Fireplace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Important Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Attaching the Safety-in-Operation Warnings . . . . . . . . . . . . . . . . . . . . . . . . . 5
Appliance Installation, Service, and Maintenance Notices . . . . . . . . . . . . . . . . . 6
Appliance Operation Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
BTU Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Gas Pressure Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Orifice Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Burn-In Period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Operation/Care of Your Appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Gas Controls / Control Compartment Access . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Appliance Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Lighting the Appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
ON/OFF Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Adjusting Flame Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Controls for Optional Outside Combustion Air Kit . . . . . . . . . . . . . . . . . . . . . . . 9
Maintenance Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Removing and Installing the Glass Enclosure Panel . . . . . . . . . . . . . . . . . . . . . 11
Installing Volcanic Stone, Glowing Embers (Rockwool), and Logs . . . . . . . . . 12
MLBV-35 Log Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
MLBV-40 Log Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Burner Air Shutter Adjustments:
Flame Appearance and Sooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Air Shutter Adjustment Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Burner Air Shutter Adjustment Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Appliance Checkout:
Millivolt Appliance Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Electronic Appliance Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Spillage Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Manually-Reset Safety Limit Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Ordering Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Product Reference Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Unit Catalog Nos. / Shipping Wts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Accessory Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Lighting Instructions – Millivolt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Lighting Instructions – Electronic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Maintenance Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Troubleshooting Guide – Millivolt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Troubleshooting Guide – Electronic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Replacement Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Thank you for your purchase. We appreciate your business!
Please carefully read and follow all instructions in this manual.
Pay special attention to all warnings and safety information.
Following these safety, care, and operation instructions will help
ensure many years of dependable and enjoyable service from
your fireplace.
•
FREE
SAFETY GUARD
OFFER
•
The Lennox
®
SAFETY GUARD protects against
severe burns and injuries by preventing direct contact
with the front glass surface of your fireplace.
To receive your FREE SAFETY GUARD, call 1-800-786-7976
or visit www.lennox.com
(Lennox Hearth Products / Owner Resources)
3
LENNOX HEARTH PRODUCTS • MERIT
®
SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • CARE AND OPERATION INSTRUCTIONS
Afin d'éviter de vous brûler gravement ou de
vous blesser, installez une grille ou une barrière
physique pour empêcher tout contact direct
avec la vitre.
Pour commander un PANNEAU DE PROTECTION
Lennox
®
GRATUIT pour votre foyer, consultez
les détails dans la partie gauche.
Suivez les instructions de sécurité ci-dessous
et veillez à ce que tous les membres de votre
famille soient conscients du danger de brûlure
encouru :
•Les surfaces de votre foyer deviennent
EXTRÊMEMENT CHAUDES !
•La vitre située à l'avant du foyer
atteint des températures
EXTRÊMEMENT ÉLEVÉES et peut causer
de graves blessures en cas de contact.
•Tenez les enfants à l'écart du foyer lorsqu'il
fonctionne. Surveillez attentivement
les enfants dans les pièces où un foyer
est utilisé afin d'éviter qu'ils ne soient
en contact avec la vitre.
•Tenez tous les vêtements, les
meubles, l'essence et tout autre
liquide inflammable à l'écart du foyer.
•Même après fermeture du gaz, les surfaces
du foyer restent extrêmement chaudes.
Veillez à coller les Étiquettes de mise en garde
relatives à la sécurité d'utilisation à l'endroit
où vous utilisez le foyer, pour rappeler à tous les
utilisateurs les dangers liés aux températures
élevées (voir Page 5).
Lisez la section Informations importantes
relatives à la sécurité, Page 4.
Toutes les parties de votre foyer
Lennox Hearth Products deviennent
EXTRÊMEMENT CHAUDES !
Instale una malla o barrera física para evitar
el contacto directo con el vidrio y prevenir
las quemaduras y lesiones graves.
Ver los detalles a la izquierda para ordenar
un Lennox
®
SAFETY GUARD GRATIS
para su chimenea.
Siga las instrucciones de seguridad a
continuación y asegúrese de que todos
en su hogar sepan acerca de este peligro
de quemadura:
•¡Las superficies de la chimenea se ponen
MUY CALIENTES!
•El vidrio delante de la chimenea alcanza
temperaturas EXTREMADAMENTE ALTAS y
puede causar quemaduras graves si se toca.
•Mantenga a los niños alejados de la
chimenea en funcionamiento. Supervise
en forma cercana a los niños en cualquier
cuarto donde haya una chimenea
funcionando para impedir el contacto
con el vidrio.
•Mantenga la ropa, mobiliario, gasolina
y otros líquidos inflamables alejados
de la chimenea.
•Aún después de haber apagado el gas,
las superficies de la chimenea permanecen
extremadamente calientes.
Asegúrese de colocar las Etiquetas de
advertencia de seguridad de operación en
el lugar donde enciende la chimenea, para
que todos recuerden los peligros asociados
con las altas temperaturas (ver la página 5).
Lea la Información importante de seguridad
en la página 4.
¡Todas las partes de la chimenea
Lennox Hearth Products se ponen
MUY CALIENTES!
Seguridad y
su chimenea
La sécurité et
votre foyer
[FRENCH] [SPANISH]
4
LENNOX HEARTH PRODUCTS • MERIT
®
SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • CARE AND OPERATION INSTRUCTIONS
Important Safety Information
1. WARNING: Do not operate appliance with the glass front
removed, cracked or broken. Replacement of the glass
should be done by a licensed or qualified service person .
2. Do not use this appliance if any part has been under water.
Immediately call a qualified service technician to inspect
the appliance and to replace any part of the control system
and any gas control which has been under water.
3. Due to high temperatures, the appliance should be located
out of traffic and away from furniture and draperies.
4. Children and adults should be alerted to the hazards of
high surface temperature and should stay away to avoid
burns or clothing ignition.
5. Clothing or other flammable material should not be placed
on or near the appliance.
6. Young children should be carefully supervised when they
are in the same room as the appliance. Toddlers, young
children, and others may be susceptible to accidental
contact burns. A physical barrier is recommended if there
are at-risk individuals in the house. To restrict access to a
fireplace or stove, install an adjustable safety gate to keep
toddlers, young children, and other at-risk individuals out
of the room and away from hot surfaces.
7. Any safety screen or guard removed for servicing an
appliance must be replaced prior to operating the
appliance.
8. 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, bedding material, et cetera.
It is imperative that control compartments, burners, and
circulating air passageways of the appliance be kept
clean. See maintenance instructions on Page 10.
L'information de sûreté importante
1. AVERTISSEMENT. Ne pas utiliser l’appareil si le panneau frontal
en verre n’est pas en place, est craqué ou brisé. Confiez le
remplacement du panneau à un technicien agréé
2. Ne pas utiliser cet appareil s’il a été plongé, même partiellement,
dans l’eau. Appeler un technicien qualifié pour inspecter
l’appareil et remplacer toute partie du système de commande
et toute commande qui a été plongée dans l’eau.
3. En raison des températures élevées, l’appareil devrait être
installé dans un endroit où il y a peu de circulation et loin du
mobilier et des tentures.
4. Les enfants et les adultes devraient être informés des dangers
que posent les températures de surface élevées et se tenir à
distance afin d’éviter des brûlures ou que leurs vêtements ne
s’enflamment.
5. On ne devrait pas placer de vêtements ni d’autres matières
inflammables sur l’appareil ni à proximité.
6. Les jeunes enfants devraient être surveillés étroitement lorsqu’ils
se trouvent dans la même pièce que l’appareil. Les tout petits,
les jeunes enfants ou les adultes peuvent subir des brûlures s’ils
viennent en contact avec la surface chaude. Il est recommandé
d’installer une barrière physique si des personnes à risques
habitent la maison. Pour empêcher l’accès à un foyer ou à un
poêle, installez une barrière de sécurité ; cette mesure empêchera
les tout petits, les jeunes enfants et toute autre personne à risque
d’avoir accès à la pièce et aux surfaces chaudes.
7. Tout écran ou protecteur retiré pour permettre l’entretien de
l’appareil doit être remis en place avant de mettre l’appareil en
marche.
8. L’installation et la réparation devrait être confiées à un technicien
qualifié. L’appareil devrait faire l’objet d’une inspection par un
technicien professionnel avant d’être utilisé et au moins une
fois l’an par la suite. Des nettoyages plus fréquents peuvent
être nécessaires si les tapis, la literie, et cetera produisent
une quantité importante de poussière. Il est essentiel que les
compartiments abritant les commandes, les brûleurs et les
conduits de circulation d’air de l’appareil soient tenus propres.
Voyez les instructions d’entretien à la Page 10.
[SPANISH]
Información importante de seguridad
1. ADVERTENCIA: No opere el artefacto con el frente de vidrio quitado,
agrietado o roto. Un técnico de servicio licenciado o capacitado
debe reemplazar el vidrio.
2. No use este artefacto si alguna de sus partes ha estado bajo agua.
Llame de inmediato a un técnico de servicio calificado para que
inspeccione el artefacto y reemplace cualquier parte del sistema
de control y cualquier control de gas que haya estado bajo agua.
3. Debido a las altas temperaturas, el artefacto debe situarse fuera
de las áreas de tráfico y lejos del mobiliario y cortinas.
4. Se debe alertar a los niños y adultos sobre los peligros de
las altas temperaturas en la superficie y que se mantengan
alejados para evitar quemaduras o ignición de la ropa.
5. No debe colocarse ropa u otros materiales inflamables
sobre y cerca del artefacto.
6. Se debe supervisar de cerca a los niños cuando estén en el mismo
cuarto que el artefacto. Los niños pequeños, los jóvenes y otras
personas pueden ser susceptibles a quemaduras por contacto
accidental. Se recomienda instalar una barrera física si hay
personas en riesgo en la casa. Para restringir el acceso a una
chimenea o estufa, instale una puerta de seguridad ajustable
para mantener a los niños pequeños, jóvenes y otras personas
en riesgo fuera del cuarto y lejos de las superficies calientes.
7. Cualquier malla o resguardo de seguridad quitado para dar servicio
a un artefacto, debe reinstalarse antes de operar el artefacto.
8. Una persona de servicio competente debe realizar la instalación y
reparación. Una persona de servicio profesional debe inspeccionar
el artefacto antes de usar al menos una vez por año. Se puede
requerir limpieza más frecuente debido a la pelusa excesiva
del alfombrado, del material de cobijas, etc. Es imprescindible
mantener limpios los compartimientos de control, los quemadores
y los pasajes de circulación del aire del artefacto. Ver las
instrucciones de mantenimiento en la página 10.
5
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
LENNOX HEARTH PRODUCTS • MERIT
®
SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • CARE AND OPERATION INSTRUCTIONS
HOMEOWNER’S INSTRUCTIONS: ATTACHING “SAFETY-IN-OPERATION” WARNINGS
APPOSITION DES MISES EN GARDE RELATIVES
À LA SÉCURITÉ D’UTILISATION
Votre foyer a été livré avec des étiquettes de sécurité qui
doivent être collées à côté des dispositifs de contrôle
du foyer. Une étiquette de sécurité devrait être collée
sur la plaque de l’interrupteur contrôlant l’allumage du
foyer (voir Figure A) et, le cas échéant, sur le boîtier
de la télécommande (Figure B). Les mises en garde
auraient dû être collées au moment de l’installation
initiale du foyer. Si ce n’est pas le cas, prenez les
étiquettes adhésives multilingues fournies avec ces
instructions et procédez comme suit:
1. Repérez l’interrupteur qui contrôle le foyer (vérifiez
que l’interrupteur contrôle le fonctionnement du
foyer en le faisant basculer de Marche à Arrêt, et
vice-versa). Nettoyez soigneusement la plaque
murale de l’interrupteur 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). Choisissez la langue
qui est principalement parlée dans la résidence
du propriétaire.
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 télécommande
(Figure B). Choisissez la langue qui est principale-
ment parlée dans la résidence du propriétaire.
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.
Étiquettes de remplacement, n° cat. H8024
LENNOX HEARTH PRODUCTS
1-800-9-LENNOX
Remarque : Le texte anglais est rouge sur un support
transparent. Le texte français et espagnol est blanc
sur un support noir.
COLOCACIÓN DE ADVERTENCIAS DE SEGURIDAD
EN OPERACIÓN
Su chimenea incluye etiquetas de instrucciones de
seguridad que deben colocarse en el punto de operación
y control de la chimenea. Se debe colocar una etiqueta
de instrucciones de seguridad en la placa del interruptor
de pared desde el cual se enciende y se apaga la
chimenea (ver la Figura A) y en el transmisor de control
remoto (Figura B) si se usa. Las advertencias ya deben
haberse colocado cuando se completó la instalación
inicial de la chimenea. Si no están colocadas en estos
lugares, encuentre las etiquetas adhesivas multilingües
proporcionadas con estas instrucciones y prosiga de
la siguiente manera:
1. Identifique el interruptor de pared que controla
la chimenea (verifique que el interruptor opera la
chimenea encendiéndola y apagándola). Limpie
bien la placa del interruptor 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). Seleccione el idioma que más se habla
en la casa.
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 B). Seleccione el
idioma que más se habla en la casa.
3. Si no puede encontrar las etiquetas, sírvase llamar a
Lennox Hearth Products o al distribuidor de Lennox
Hearth Products más cercano para recibir etiquetas
de instrucciones de seguridad adicionales gratuitas.
Juego de etiquetas de repuesto - Nº de cat. H8024
LENNOX HEARTH PRODUCTS
1-800-9-LENNOX
Nota: La etiqueta en inglés es transparente con texto
rojo. Las etiquetas en francés y español son negras
con texto blanco.
ATTACHING “SAFETY-IN-OPERATION”
WARNINGS
Your fireplace has been furnished with safety
instruction labels that are to be affixed to the
operation and control point of the fireplace. A
safety instruction label should be affixed to the
wall switch plate where the fireplace is turned on
and off (See Figure A) and if used on the remote
control handheld transmitter (Figure B). The
warnings should already have been put in place
when the fireplace initial set-up was completed.
If they are not afxed at these spots, locate the
multi-lingual adhesive labels provided with these
instructions and proceed as follows:
1. Locate the wall switch that controls the fireplace
(verify the switch operates the fireplace by
turning it on and off). Clean the wall switch
plate 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). Choose the language primarily spoken in
the home.
2. If a remote control is used to control the
replace, locate the transmitter and clean it
thoroughly to remove any dust and oils. Affix
the label to the surface of handheld transmitter
(Figure B). Choose the language primarily
spoken in the home.
3. If you are unable to locate the labels, please
call Lennox Hearth Products or your nearest
Lennox Hearth Products dealer to receive ad-
ditional safety instruction labels free of charge.
Cat. No. H8024 Replacement Label Kit
LENNOX HEARTH PRODUCTS
1-800-9-LENNOX
Note: English is red text on clear label. French
and Spanish are white text on black label.
Figure A
Figure B
SAFETY LABEL
DIAGRAMS
DIAGRAMAS DE ETIQUETAS
DE SEGURIDAD
DIAGRAMMES DES ÉTIQUETTES
DE SÉCURITÉ
6
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
LENNOX HEARTH PRODUCTS • MERIT
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SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • CARE AND OPERATION INSTRUCTIONS
Warranty Information
Your gas appliance is covered by a limited
twenty-year warranty. You will find a copy
of the warranty accompanying this manual.
Please read the warranty to be familiar with
its coverage.
Retain this manual. File it with your other
documents for future reference.
Failure to comply with the installation
and operating instructions provided
will result in an improperly installed
and operating appliance, voiding its
warranty.
Do not attempt to alter or modify the
construction of the appliance or its
components. Any modification or
alteration may void the warranty,
certification, and listings of this unit.
Appliance Operation Notices
Do not operate appliance with the glass
front removed, cracked, or broken.
These fireplaces are vented gas
appliances. Do not burn wood or other
material in these appliances.
This appliance is only for use with the
type of gas indicated on rating plate.
This appliance is not convertible for
use with other gases, unless a certified
kit is used.
These appliances are designed to
operate on natural gas or propane
gas only. The use of other fuels or
combinations of fuels will degrade the
performance of this system and may be
dangerous.
Provide adequate clearances around
air openings and adequate accessibility
clearance for service and proper
operation. Never obstruct the front
openings of the appliance.
Do not use this appliance if any part has
been under water. Immediately call a
qualified service technician to inspect
the appliance and to replace any part of
the control system and any gas control
that has been under water.
These fireplaces are designed as
supplemental heaters. Therefore, it
is advisable to have an alternate pri-
mary heat source when installed in a
dwelling.
WARNING
B-Vent appliances are not
designed to operate in nega-
tively pressured environments
(pressure within the home is
less than pressures outside).
Significant negatively pressured
environments caused by weather,
home design, or other devices
may impact the operation of
these appliances. Negative pres-
sures may result in poor flame
appearance, sooting, damage to
property and/or severe personal
injury. Do not operate these
appliances in negatively pres-
sured environments.
Appliance Installation, Service,
and Maintenance Notices
IMPORTANT: Improper installation,
adjustment, alteration, service, or
maintenance can cause injury or
property damage. Refer to this manual.
For assistance or additional information,
consult a qualified installer, service
agency or the gas supplier.
Only trim kit(s) supplied by the manu-
facturer shall be used in the installation
of this appliance.
Draft relief openings must not be
covered or blocked.
These appliances must not be connected
to a chimney or flue serving a separate
solid fuel burning appliance.
Any change to this appliance and/or
its operating controls is dangerous.
Improper installation or use of this
appliance can cause serious injury or
death from fire, burns, explosion or
carbon monoxide poisoning.
CARBON MONOXIDE POISONING:
Early signs of carbon monoxide
poisoning are similar to the flu with
headaches, dizziness and/or nausea. If
you have these signs, obtain fresh air
immediately. Turn off the gas supply to
the appliance and have it serviced by
a qualified professional, as it may not
be operating correctly. Some people
are more affected by carbon monoxide
than others, including pregnant women,
people with heart or lung disease or
anemia, those under the influence of
alcohol, and those at high altitudes.
Turn off gas and electrical power to the
fireplace and allow it to cool before
cleaning or servicing the appliance.
7
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
LENNOX HEARTH PRODUCTS • MERIT
®
SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • CARE AND OPERATION INSTRUCTIONS
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
GENERAL INFORMATION
The fireplace models covered in this manual are
B-vented decorative gas appliances designed
for residential application.
Millivolt appliances have a millivolt gas control
valve with piezo ignition system.
Electronic appliances have a battery backed-
up electronic intermittent pilot system. No
external electrical power is required to operate
these appliances; however, 120 VAC is recom-
mended (see Installation Instructions).
These appliances comply with National Safety
Standards and are tested and listed by ITS
(Report No. 100017854) to ANSI Z21.50 (in
Canada, CSA-2.22) and to CAN/CGA-2.17-M91
in both USA and Canada (latest editions at time
of manual publication) as vented gas fireplaces.
Installation must conform to local codes, or, in
the absence of local codes, with the National
Fuel Gas Code, ANSI Z223.1/NFPA 54 (latest
edition), or the Natural Gas and Propane Instal-
lation Code, CAN/CSA B149.1 (latest edition).
The appliance, when installed, must be electri-
cally grounded and wired in accordance with
local codes or, in the absence of local codes,
with the USA National Electrical Code, ANSI/
NFPA 70 (latest edition) or, in Canada, the Cana-
dian Electrical Code, CSA C22.1 (latest edition).
Burn-in Period
During the rst few res in this appliance,
there will be some odor due to the curing of
the paint and burning off of lubricants used in
the manufacturing process. Depending on your
use, the burn-in period may take a few hours
or a few days.
KEEP YOUR HOUSE WELL VENTILATED
DURING THE BURN-IN PROCESS. THE ODOR
AND HAZE EMITTED DURING THE BURN-IN
PROCESS CAN BE QUITE NOTICEABLE AND
MAY SET OFF A SMOKE DETECTOR.
Gas Pressure Requirements
(All Models)
Gas pressure requirements are listed in
Tables 2 and 3.
Test gauge connections are provided on the
front of the gas control valve, identied IN for
the inlet and OUT for the manifold side (see
Figures 3 and 4).
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.
Inlet Gas Supply Pressure
(all models)
Fuel # Minimum Maximum
Natural Gas
4.5" WC
(1.12 kPa)
10.5" WC
(2.61 kPa)
Propane
11.0" WC
(2.74 kPa)
13.0" WC
(3.23 kPa)
Table 2
Manifold Gas Supply Pressure
(all models)
Fuel # Low High
Natural
Gas
(Lo) 2.2" WC
(0.55 kPa)
(Hi) 3.5" WC
(0.87 kPa)
Propane
(Lo) 6.3" WC
(1.57 kPa)
(Hi) 10.0" WC
(2.49 kPa)
Table 3
BTU Input
Millivolt and electronic models come standard
with a manually-modulated gas valve; flame
appearance and heat output can be controlled
at the gas valve. The BTU inputs for these ap-
pliances are shown in Table 1.
Input (BTU/HR) Manually Modulated
Gas Valves (all models)
Models
Input Rate (BTU / HR)
Nat. Gas Prop. Gas
MLBV-35
17,000 high
13,000 low
17,000 high
14,000 low
MLBV-40
22,000 high
17,000 low
20,000 high
15,500 low
Table 1
IMPORTANT NOTE!
A white film may develop on the glass
enclosure panel during the first few
fires as part of the burn-in process.
The first few times you use the
fireplace, clean the glass after
each use (AFTER THE GLASS HAS
COMPLETELY COOLED); otherwise,
the white film will bake onto the
glass and become difficult to
remove.
See “Clean Glass Enclosure Panel”
on Page 10.
These appliances must be isolated
from the gas supply piping system (by
closing their individual manual shut-off
valve) during any pressure testing of
the gas supply piping system at test
pressures equal to or less than 1/2 psig
(3.5 kPa).
These appliances and their individual
shut-off valves must be disconnected
from the gas supply piping system
during any pressure testing of that
system at pressures greater than 1/2
psig (3.5 kPa).
Orifice Sizes
(Sea Level to High Altitude – All Models)
These appliances are tested and approved for
installation at elevations of 0–4500 feet (0–1372
meters) above sea level using the standard
burner orice sizes (marked with an asterisk
(*) in Table 4, below).
For elevations above 4500 feet, contact your
gas supplier or a qualified service technician.
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 orice 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.
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.
NOTE: Flame appearance will diminish
4% per thousand feet of altitude.
Burner Orifice Sizes
Elevation 0-4500 feet ( 0-1372 meters)
Model
Series
Nat.Gas
drill size (inches)
Propane
drill size (inches)
MLBV-35
#48 (0.076")*
H1236•
#56 (0.046")*
62L37•
MLBV-40
#43 (0.089")*
99K75•
#55 (0.052")*
19L52•
Table 4
*
Standard size installed at factory.
• Part /Catalog Number.
Gas Pressure Requirements
(continued)
8
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
LENNOX HEARTH PRODUCTS • MERIT
®
SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • CARE AND OPERATION INSTRUCTIONS
OPERATION AND CARE OF YOUR APPLIANCE
WARNING
Young children should be carefully supervised when they are in the
same room as the appliance. Toddlers, young children and others
may be susceptible to accidental contact burns. A physical barrier is
recommended if there are at risk individuals in the house. To restrict
access to a fireplace or stove, install an adjustable safety gate to keep
toddlers, young children and other at risk individuals out of the room
and away from hot surfaces.
AVERTISSEMENT
Les jeunes enfants devraient être surveillés étroitement lorsqu’ils se trou-
vent dans la même pièce que l’appareil. Les tout petits, les jeunes enfants
ou les adultes peuvent subir des brûlures s’ils viennent en contact avec
la surface chaude. Il est recommandé d’installer une barrière physique
si des personnes à risques habitent la maison. Pour empêcher l’accès
à un foyer ou à un poêle, installez une barrière de sécurité; cette mesure
empêchera les tout petits, les jeunes enfants et toute autre personne à
risque d’avoir accès à la pièce et aux surfaces chaudes.
Figure 1
GAS CONTROLS / CONTROL
COMPARTMENT ACCESS
Fireplace gas controls are located in the lower
control compartment under the firebox (see
Figure 1). Remove the control compartment
door to access the controls.
To remove the control compartment door:
Gently pull upward and forward on the door
panel; then slide the panel, rst to one side
and then to the other, until the door tabs clear
both holes (see Figure 2).
To reinstall the control compartment door:
Insert one of the door panel side tabs into its
corresponding hole in the control compartment
opening (see Figure 2); then insert the other
side tab. Lift upward on the door panel; then
gently push the top edge forward and down
into the grooves in the brackets until it locks
into place.
(Continued on next Page)
Figure 2
Control Compartment Door Tab
Gas Flex Line
(Gas Shut-Off Valve is behind
door latch; see DETAIL, below)
Gas Control
Valve
Piezo
(Millivolt
units only)
Spring
Door Latch
(one of two)
Lower Control
Compartment
(shaded area)
Optional
Unit-Mounted
ON/OFF Switch
~
{
Note: Millivolt system shown. Electronic system controls are similarly located.
DETAIL:
Gas Shut-Off Valve
in ON position (gas line OPEN)
To shut OFF gas: Turn valve handle
perpendicular (cross-wise) to gas line.
9
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
LENNOX HEARTH PRODUCTS • MERIT
®
SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • CARE AND OPERATION INSTRUCTIONS
Figure 4
Supply Gas
Inlet
Pressure-Tap
(Manifold)
Regulator
Mounting
Screw
Burner Stage
Terminal
Gas
Outlet
To Burner
Ground (TP)
Pilot Stage
Terminal
Pilot Gas Outlet
Pressure-Tap
(Inlet)
PILOT
OUT
VENT
LO
TH
TP
TH
TP
HI
IN
IN
IMPORTANT: Do NOT assume your fire-
place has a complete supplemental com-
bustion air system, and do NOT operate
the Outside Air Control Lever unless you
have verified with your dealer or distribu-
tor that a complete system is in place.
The hand-operated outside air control lever is
located on the lower LEFT side of the fireplace
opening. See Figure 5.
To open the outside air shutter, open the bot-
tom control access panel, reach into the control
compartment, and pull the outside air control
lever all the way out. The outside air shutter
should be fully open when the fireplace is in use
and completely closed when the fireplace is not
being used. Closing it when not in use will greatly
reduce the amount of outside cold air entering
the dwelling through the fireplace.
Figure 5
WARNING
Do not operate the shutoff lever
unless a complete outside com-
bustion air system has been
installed with your appliance.
LIGHTING AN ELECTRONIC APPLIANCE
DURING A POWER OUTAGE
1. Install (2) “D” batteries in battery holder.
2. Light the appliance according to the
instructions on Page 24.
3. Operate the appliance normally.
4. After power is restored, remove the
batteries.
Note: To prevent batteries from draining
prematurely, do NOT install batteries until
needed (e.g., during a power outage or
if operating the appliance solely with
batteries).
SIT Millivolt
Gas Control Valve
Variable Flame
Height Adjustment
Manifold Pressure
Port
Inlet
Pressure
Port
Main Gas Control Knob
H
I
L
O
W
TPTH TP TH
P
I
L
O
T
P
I
L
O
T
O
N
it
O
F
F
IN
OUT
Gas Inlet
Terminals TPTH, TP and TH
Gas
Outlet
Variable Flame
Height Adjustment
Manifold Pressure
Port
Inlet
Pressure
Port
Main Gas Control Knob
H
I
L
O
W
TPTH TP TH
P
I
L
O
T
P
I
L
O
T
O
N
it
O
F
F
IN
OUT
Gas Inlet
Terminals TPTH, TP and TH
Gas
Outlet
Figure 3
Dexen Electronic
Gas Control Valve
Left Side of
Lower Control Compartment
Securing
Screw
Removed
Outside Air Control
Lever pulled DOWN
(Air Shutter OPEN)
Outside Air Control
Lever pushed UP
(Air Shutter CLOSED)
Securing
Screw
Installed
IMPORTANT: Do NOT move Air Control
Lever if securing screw is installed
(or if not sure it was removed).
Appliance Controls
Operation of millivolt and electronic gas
control systems differs. Before lighting and
operating your appliance, determine whether
you have a millivolt or electronic appliance,
and then familiarize yourself with the location of
the Gas Control Valve and Gas Shut-Off Valve
on your specific appliance.
• For general control location, see Figure 1.
• For MILLIVOLT appliances, see Figure 3
for a detailed illustration of the SIT Millivolt
Gas Control Valve.
• For ELECTRONIC appliances, see Figure 4
for a detailed illustration of the Dexen
Electronic Gas Control Valve.
Lighting the Appliance
• Detailed MILLIVOLT appliance lighting
instructions are on Pages 22 and 23 and
also on the label attached to the gas
control valve.
• Detailed ELECTRONIC appliance lighting
instructions are on Pages 24 and 25
and also on the label attached to the
gas control valve. Also see “Lighting
an Electronic Appliance During a Power
Outage,” below.
ON/OFF Control
Available ON/OFF control options for both
MILLIVOLT and ELECTRONIC models include a
unit-mounted ON/OFF switch (shown in Figure
1), a wall switch, or a remote control system.
See the “Accessory Components” section in
this manual for details.
Note: To prevent excessive resistance in
burner circuit (which can cause burner op-
eration problems), wire only one burner
control switch to the valve.
Adjusting Flame Height
After lighting the appliance, rotate the Flame
Height Adjustment Knob to adjust the flame in
a variable range from “LOW” to “HI” (manual
adjustment only; no remote options).
• For MILLIVOLT appliances, see Figure 3.
• For ELECTRONIC appliances, see Figure 4.
CONTROLS FOR OPTIONAL
OUTSIDE COMBUSTION AIR KIT
An optional outside combustion air system
may be used with these appliances to provide
supplemental combustion air from outside the
home during appliance operation. If used, the
outside combustion air kit must be installed
before the fireplace is framed and enclosed in
the finished wall.
The Outside Air Control Lever for this type of
system is standard on all models (see Figure
5); however, do NOT operate the Outside Air
Control Lever if the complete system is NOT
installed.
When a complete outside supplemental com-
bustion air system is installed, the installer will
remove the securing screw from the control
lever on the LEFT side of the fireplace opening
(see Figure 5).
If the securing screw has NOT been removed,
and you have reason to believe your fireplace
has a complete outside supplemental combus-
tion air system, contact your dealer or distribu-
tor to have your appliance inspected.
10
LENNOX HEARTH PRODUCTS • MERIT
®
SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • CARE AND OPERATION INSTRUCTIONS
MAINTENANCE INSTRUCTIONS
(See Maintenance Schedule, Page 26)
Refer to the maintenance schedule for maintenance
tasks, procedures, frequency, and by whom they
should be performed. Always verify proper opera-
tion of the appliance after servicing.
Order Replacement Logs
If the logs become damaged and need to be
replaced, use only the proper replacement logs
from the manufacturer (see Pages 13 and 14
for ordering information).
Reinstall Embers and Logs
Carefully follow placement instructions on
Pages 12–14. All logs should fit onto corre-
sponding pins and/or log stoppers. This will
ensure a proper flame and safe combustion.
Inspect Wiring
Refer to wiring diagrams on Pages 18 and 19.
CAUTION: Label all wires prior to discon-
nection when servicing controls. Wiring
errors can cause improper and dangerous
operation. Verify proper operation after
servicing.
ATTENTION: Au moment de l'entretien
des commandes, étiquetez tous les fils
avant de les débrancher. Des erreurs
de cáblage peuvent entraîner un fonc-
tionnement inadéquat et dangereux.
Inspect and clean all wire connections. Ensure
that there is no melting or damage. Inspection
should include:
• Terminals at the Valve
• Optional Control Switch (Wall ON/OFF
Switch, Unit-Mounted ON/OFF Switch, or
Remote ON/OFF Control System)
Inspect Burner Flame Appearance
Ensure that the burner flame appearance
resembles the flame shown in Figures 11 and
12 and as described in “Flame Appearance
and Sooting” on Page 15. The Homeowner
must contact a qualified service technician at
once if any abnormal condition is observed.
Small Area Paint Touch-up
If the surface becomes stained or marred, it
may be lightly sanded and touched-up with
spray paint available from your local authorized
Lennox Hearth Products dealer.
NOTE:
•Only use factory-supplied paint for
touch-ups.
•Never attempt to paint a hot fireplace.
CAUTION: Wear gloves and safety
glasses for protection while performing
required maintenance.
Verify proper operation after servicing.
S'assurer que l'appareil fonctionne adé-
quatement une fois l'entretien terminé.
Always turn off gas to the pilot (millivolt
appliances) before cleaning.
Before relighting the fireplace, refer to
the lighting instructions in this manual.
Instructions are also found on pull-out
panels located below the glass enclosure
panel, in the appliance control compart-
ment.
Inspect Venting System
The appliance and venting system should be
thoroughly inspected before initial use and
at least annually by a qualified service techni-
cian (inspection should include ensuring that
exhaust or intake passages are unobstructed
and vent components are properly assembled
and not damaged). Homeowner must contact
a qualified service technician at once if any
abnormal condition is observed.
If the venting system is disassembled for any
reason, a qualied service technician should
follow vent installation instructions for proper
reassembly and proper sealing of the venting
system components. However, more frequent
periodic inspections and cleanings should be
performed by the homeowner.
Inspect Glass Gasket
Visually inspect the gasket on the backside
of the glass enclosure panels. The gasket
surface must be clean, free of irregularities
and seated firmly.
Clean Glass Enclosure Panel
(Refer to “Removing and Installaing the Glass
Enclosure Panel” on Page 11).
Note: Clean glass after first two weeks of
operation (after burn-in period is over) and
then only when necessary and ONLY WHEN
THE APPLIANCE IS COOL. Wipe surface with
clean, dampened, soft cloth. Follow with dry,
soft towel as desired. Take care not to scratch
the glass surface.
IMPORTANT: Do not use abrasive clean-
ers on glass. Never clean the glass when
it is hot.
Clean the glass periodically, to remove any
buildup caused by the following:
• Filmy coating (during initial use after instal-
lation). Initial curing of the high temperature
paint and burning off of lubricants used in
the manufacturing process may result in a
filmy coating on the glass.
• Dusty or dirty buildup. It is normal for con-
densation and fog to form on the inside of
the glass when first starting the appliance.
This condensation and fog will usually
disappear within a few minutes; however,
over time the moisture can cause lint, dust,
and other airborne particles to cling to the
glass surface.
• White coating. A white coating may form on
the glass as a result of impurities and miner-
als in the fuel.
It is recommended that the glass be cleaned
two or three times during each heating season,
depending on the circumstances. The follow-
ing cleaning solutions are approved for use to
clean the glass:
• Non-ammonia based household cleaner
• 50% white vinegar and 50% water
• Gas replace/stove glass cleaner
Clean Control Compartment
Keep control compartment clean by vacuuming
or brushing at least twice a year. More frequent
cleaning may be required due to excessive lint
from carpeting, bedding materials, etc. It is
important that control compartments, burners
and circulating air passageways of the appli-
ance be kept clean.
Clean Logs and Burner
Carefully remove the logs.
Note: Use care when handling the logs,
as they become quite fragile after curing.
Vacuum out any foreign matter (lint, carbon,
etc.) on the burner. Ensure the burner ports are
“open.” Remove any carbon deposits from the
under side of the logs using a vacuum cleaner,
or a soft bristled brush (i.e. paint brush).
Note: Improper positioning of logs can
create carbon buildup and will alter the
performance of the appliance.
WARNING
Turn off gas and electrical power
to the fireplace and allow it to
cool before cleaning or servicing
the appliance.
11
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
LENNOX HEARTH PRODUCTS • MERIT
®
SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • CARE AND OPERATION INSTRUCTIONS
Figure 6
REMOVING AND INSTALLING
THE GLASS ENCLOSURE PANEL
Control
Compartment
Panel
Hood
Glass
Door
Header
Spacing
Top
Standoffs
Flush
Nailing
Flange
1/2”
Nailing
Flange
5/8”
Nailing
Flange
Glass Door
Spring Latch
WARNING
Any safety screen or guard
removed for servicing the appli-
ance must be replaced prior to
operating the appliance.
AVERTISSEMENT
Tout écran ou protecteur retiré
pour permettre l’entretien de
l’appareil doit être remis en
place avant de mettre l’appareil
en marche.
WARNING
• Do not attempt to substitute the
materials used on this door or
replace cracked or broken glass.
• Handle this glass with extreme
care! Glass is susceptible to
damage; do NOT scratch or
handle roughly while reinstalling
the glass door frame.
• The glass door(s) of this appli-
ance must only be replaced as
a complete unit as provided by
the manufacturer. Do not attempt
to replace broken, cracked, or
chipped glass separately.
• Do not attempt to touch the front
enclosure glass with your hands
while the fireplace is in use.
WARNING
Do not operate appliance with
the glass front removed, cracked
or broken.
AVERTISSEMENT
Ne pas utiliser l'appareil si le pan-
neau frontal en verre n'est pas en
place, est craqué ou brisé.
Only doors certified with the appliance
shall be used.
Seules des portes certifiées pour cet
appareil doivent être utilisées.
CAUTION: DO NOT abuse glass enclosure
panel by striking or slamming shut.
This appliance is designed to operate only
when the glass enclosure panel is installed.
Do NOT remove the glass enclosure panel un-
less necessary (e.g., to gain access to compo-
nents within the firebox or to clean the glass).
Removing the Glass Enclosure Panel
1. Refer to Figure 6. To access the spring
latches securing the front glass enclosure
panel, open the lower control compartment
door by lifting and pulling the bottom panel
forward.
2. Pull the spring latches forward and down to
release them from the lower door channel.
3. Pull the bottom of the glass enclosure panel
out a few inches, and grasp it on the right
and left sides. Gently lift to release the panel
from its upper channel, and then pull the
enclosure panel forward to remove it.
4. Visually inspect the gasket on the backside
of the enclosure panel frame. The gasket
surface must be clean, free of irregularities,
and firmly seated.
Installing the Glass Enclosure Panel
1. Refer to Figure 6. Position the glass enclo-
sure panel in front of the rebox opening,
with the bottom of the enclosure panel held
away from the replace. Hook the top ange
of the enclosure panel frame over the top of
the firebox frame.
2. Gently move the bottom of the enclosure
panel frame toward the replace, ensuring
that the gasket seats evenly. Fasten the
two latches under the firebox floor to the
vee-flange on the enclosure panel. Close
both latches securely.
Control
Compartment
Panel
Hood
Glass
Door
Header
Spacing
Top
Standoffs
Flush
Nailing
Flange
1/2”
Nailing
Flange
5/8”
Nailing
Flange
Glass Door
Spring Latch
12
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
LENNOX HEARTH PRODUCTS • MERIT
®
SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • CARE AND OPERATION INSTRUCTIONS
WARNING
• 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 engineered 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 combustion,
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,
embers, and logs.
• 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.
• If logs are not installed
according to the log
installation instructions, flame
impingement and improper
combustion could occur and
result in soot and/or excessive
production of carbon monoxide
(CO), a colorless, odorless,
toxic gas.
4. Place the glowing ember material
(rockwool).
Note: The bag of Glowing Embers
contains enough rockwool for several
applications; therefore, do not use the
entire bag at one time. For best glow-
ing effect, replace the ember material
annually.
Refer to Figure 8. Separate the glowing
ember material into pieces about the size
of a quarter. Keep the pieces uffed up,
not matted. Distribute the pieces over the
surface of the burner, as shown in Figures 9
and 10. Do not use more than is necessary.
Position the embers on the small holes of
the ember bed area.
Note: Make sure the glowing ember
material does NOT cover the main
burner slots.
Bag of Glowing
Embers (Rockwool)
Separate into individual
“Quarter-sized” pieces.
Figure 8
INSTALLING VOLCANIC
STONE, GLOWING EMBERS
(ROCKWOOL), AND LOGS
NOTE: Turn OFF all electricity to the fire-
place before installing volcanic stone,
glowing embers, or logs.
1. Remove the front glass enclosure panel
(see “Removing and Installing the Glass
Enclosure Panel,” on previous Page).
2. Install ceramic brickaded panel liners.
3. Install decorative volcanic stone. Refer to
Figure 7. Sprinkle the decorative volcanic
stone in a pleasing pattern directly on the
rebox bottom, along the slope and to the
back, at the right and left sides of the burner.
Figure 7
Volcanic Stone
Place Volcanic
Stone As Shown
5. Install the Logs.
The logs have locating notches or slots to
help ensure that they are properly positioned.
The top logs that rest on lower logs, do so
over notches, indents or nubs. Proper log
placement is critical to prevent sooting.
Logs should be placed in the gaps between
the ame peaks and should be positioned so
they do not impinge the flames. Follow the
log placement instructions exactly.
MLBV-35: Install logs as shown in Figure 9.
MLBV-40: Install logs as shown in Figure 10.
13
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
LENNOX HEARTH PRODUCTS • MERIT
®
SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • CARE AND OPERATION INSTRUCTIONS
MLBV Firebox Accessories/Parts
Cat. No. Model No. Description
H7666 — MLBV-35 Log Set Assembly
88L53 FGE Bag of Glowing Embers (Rockwool)
80L42 FDVS Bag of Decorative Volcanic Stone
Note:
•Ceramic fiber logs are FRAGILE! Handle carefully to prevent breakage.
•Install volcanic stone and glowing embers BEFORE installing logs.
•To prevent sooting, make sure logs do not cover any burner openings.
Figure 9
NOTE: Install volcanic stone and glowing embers FIRST.
Left Rear Log Bracket
Right Rear Log Bracket
Glowing Embers
(Do not place glowing embers over burner openings.)
Log RackVolcanic Stone
Fit onto left rear log bracket
and rear bar of log rack.
Right Rear
Log Bracket
Position against left front corner of log rack.
Position against right front
corner of log rack.
Position over Rear Log (1)
and against front bar of log rack.
Position over Right Front Log (3);
then fit onto right rear log bracket.
MLBV-35 LOG PLACEMENT INSTRUCTIONS
Step 1. Fit bottom slots of Rear Log (1) onto left rear log bracket
and rear bar of log rack.
Step 2. Fit bottom slots of Left Front Log (2) onto left front
corner of log rack.
Step 3. Fit bottom slots of Right Front Log (3) onto right front
corner of log rack.
Step 4. Place Left Cross Log (4) over Rear Log (1); then fit
the bottom slot over the center front bar of log rack.
Step 5. Place Right Cross Log (5) over and behind Right Front Log
(3); then fit the bottom slot onto the Right Rear Log Bracket.
4
5
3
2
1
Rear Log
Left Front Log
Left Cross Log Right Cross Log
Right Front Log
1
2
3
1
2
3
4
5
1
14
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
LENNOX HEARTH PRODUCTS • MERIT
®
SERIES B-VENT GAS FIREPLACES • 35”/40” MLBV MODELS • CARE AND OPERATION INSTRUCTIONS
MLBV Firebox Accessories/Parts
Cat. No. Model No. Description
H7667 — MLBV-40 Log Set Assembly
88L53 FGE Bag of Glowing Embers (Rockwool)
80L42 FDVS Bag of Decorative Volcanic Stone
Note:
•Ceramic fiber logs are FRAGILE! Handle carefully to prevent breakage.
•Install volcanic stone and glowing embers BEFORE installing logs.
•To prevent sooting, make sure logs do not cover any burner openings.
Figure 10
NOTE: Install volcanic stone and glowing embers FIRST.
Step 1. Fit bottom slots of Rear Log (1) onto left rear log bracket
and rear bar of grate.
Right Rear Log Bracket
Glowing Embers
(Do not place glowing embers over burner openings.)
GrateVolcanic Stone
Fit onto left rear log bracket
and rear bar of grate.
Position against left front corner of grate.
Position against right front
corner of grate.
Position over Rear Log (1)
and against front bar of grate.
Position over Right Front Log (3);
then fit onto right rear log bracket.
MLBV-40 LOG PLACEMENT INSTRUCTIONS
Step 2. Fit bottom slots of Left Front Log (2) onto left front
corner of grate.
Step 3. Fit bottom slots of Right Front Log (3) onto right front
corner of grate.
Step 5. Place Right Cross Log (5) over and behind Right Front
Log (3); then fit the bottom slot onto the right rear
log bracket.
4
5
3
2
1
Rear Log
Left Front Log
Left Cross Log Right Cross Log
Right Front Log
1
2 3
1
2
3
4
1
1
Step 4. Place Left Cross Log (4) over Rear Log (1); then fit
the bottom slot over the center front bar of grate.
2 3
5
4
15
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
LENNOX HEARTH PRODUCTS • MERIT
®
SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • CARE AND OPERATION INSTRUCTIONS
Figure 12: Burner Flame Appearance Model MLBV-40
Figure 11: Burner Flame Appearance Model MLBV-35
BURNER AIR SHUTTER
ADJUSTMENTS
(QUALIFIED TECHNICIANS ONLY)
Flame Appearance and Sooting
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 rst lit, the entire ame may be blue and will
gradually turn yellowish-orange during the first
15 minutes of operation. After 15 minutes of
operation, if the ame is blue, or if the ame is
orange with evidence of sooting (black tip), the
air shutter opening may need to be adjusted.
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.
Sooting is caused by incomplete combustion in
the ames and lack of combustion air entering
the air shutter opening. To achieve a warm
yellowish-orange flame with an orange body
that does not soot, the shutter opening must be
adjusted between these two extremes.
Air Shutter Adjustment Guidelines
• If there is smoke or soot present, rst 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.
• 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 ames that appear
blue and transparent. These weak, blue and
transparent flames are termed anemic.
• Propane models may exhibit ames which
candle or appear stringy. If this is present and
persists, adjust the air shutter to a more open
position, then operate the appliance for a few
more minutes to ensure that the flame normal-
izes and the flames do not appear sooty.
The following chart is provided to aid you in
achieving the correct air shutter adjustment
for your installation.
Air Shutter Adjustment Guidelines:
Amount of
Primary Air
Flame
Color
Air Shutter
Adjustment
If air shutter is
closed too far
Flame will
be orange
Air shutter
gap should be
increased
If air shutter is
open too far
Flame will
be blue
Air shutter
gap should be
decreased
16
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
LENNOX HEARTH PRODUCTS • MERIT
®
SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • CARE AND OPERATION INSTRUCTIONS
WARNING
• Air shutter adjustment should
only be performed by a quali-
fied professional service
technician.
• Ensure front glass panel are
in place and sealed during
adjustment.
CAUTION
• Soot will be produced if the
air shutter is closed too much.
Any damage due to carboning
resulting from improperly
setting the air shutter is not
covered under the warranty.
• The air shutter door and nearby
appliance surfaces are hot.
Exercise caution to avoid
injury while adjusting flame
appearance.
Burner Air Shutter Adjustment
Procedure
Electronic Appliance Checkout
To light the burner, refer to the lighting instruc-
tions on Page 24. Ensure the igniter lights the
pilot. The pilot flame should engulf the flame
sensor as shown in Figure 15.
APPLIANCE CHECKOUT
Millivolt Appliance Checkout
The pilot ame should be steady, not lifting
or floating. Flame should be blue in color with
traces of orange at the outer edge.
The top 3/8" (10 mm) at the pilot generator
(thermopile) and the top 1/8" minimum (tip)
of the quick drop out thermocouple should be
engulfed in the pilot flame. The flame should
project 1" (25 mm) beyond the hood at all three
ports (see Figure 14).
To light the burner, refer to the lighting instruc-
tions on Page 22.
Thermocouple
Thermopile
Pilot
Nozzels
SIT MILLIVOLT PILOT ASSEMBLY
3/8" Min.
(9 mm)
Igniter Rod
Pilot Hood
Proper Pilot Flame Appearance
Figure 14
1. Locate adjustment rod and adjust air shutter
to the standard setting as shown in Figure
13 (adjustment rod is located in the lower
control compartment).
Note: Move the adjustment rod DOWN
to decrease air and UP to increase air.
2. Light appliance (follow lighting procedure
on lighting label in control compartment or
see the lighting instructions on Pages 22
and 24 in this manual).
ELECTRONIC PILOT ASSEMBLY
ELECTRONIC
Pilot
Hood
Sensor
Igniter
Figure 15
Burner Air Shutter Adjustment
Figure 13
Main Burner Factory Air Shutter
Opening Setting
Inches (millimeter)
Model Natural
Gas
Propane
Gas
MLBV-35
1/32
(0.795)
3/16"
(4.763)
MLBV-40
1/32
(0.795)
3/16"
(4.763)
Adjustment
Rod Up
(Fully Open
Position)
Air Shutter
Adjustment Rod Down min.
air opening position)
Burner
Tube
Adjustment Set-Screw
Ref. Air shutter Patent:
U.S. Pat. 5,553,603
3. Allow the burner to operate for at least 15
minutes while observing the flame continu-
ously to ensure that the proper flame ap-
pearance has been achieved (see Figures 11
and 12 on previous Page). If the following
conditions are present, adjust accordingly.
• If ame appears weak or sooty, adjust
the air shutter, incrementally, to a more
open position until the proper flame
appearance is achieved.
• If ame stays lowered blue, adjust the
air shutter, incrementally, to a more
closed position until the proper flame
appearance is achieved.
4. Leave the control knob (off/pilot/on) in the
ON position and the burner OFF/ON switch
OFF (and remote switches, if applicable).
5. When satisfied that the burner flame ap-
pearance is normal, close the lower control
compartment door (see Figures 11 and 12
on previous Page).
17
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
LENNOX HEARTH PRODUCTS • MERIT
®
SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • CARE AND OPERATION INSTRUCTIONS
Safety Limit Switch / Reset Button Location
Inside View of Firebox (upper right side)
Figure 16
Figure 16-C
Limit Switch
Wire Terminals
(Red reset button
is between the
two terminals.)
Cabinet
Corner
Door
Frame
~
~
Figure 16-B
Figure 16-A
pull the switch/bracket assembly (with
low voltage wires attached) through the
side panel slot into the firebox.
8 - Replace the switch, if necessary.
9 - Reinstall the scoop and lintel.
10 - Reinstall the glass enclosure panel and
control compartment access panel.
The appliance should then relight and remain
lit. If this does not occur, contact your dealer.
SPILLAGE TEST
After appliance installation, perform this spillage
test to verify proper venting conditions:
1 - Place unit in its normally-operated condi-
tion, that is, with the glass enclosure panel
in place.
2 - Close all doors and windows in the room.
Turn on all exhaust fans in the house.
3 - Light the appliance.
4 - Wait 15 minutes.
5 - To check for venting action, start by hold-
ing a smoke producing device below the
glass enclosure panel. The smoke should
be drawn into the control compartment.
Continue the test by moving the smoke-
producing device along the entire length
of the lower edge of the glass enclosure
panel.
6 - If the smoke is NOT drawn into the con-
trol compartment, turn off the appliance
and call a qualified service technican.
Manually-Reset Safety Limit Switch
This appliance is equipped with a manually-
reset safety limit switch in the upper RIGHT
side of the rebox, behind the right side scoop.
Refer to Figure 16 for its location.
If, during appliance operation, the flame
goes out (independently of the burner ON/
OFF switch), the safety limit switch may have
tripped.
Some causes for a tripped safety limit switch
include the following:
• Incorrect flue configuration
• Blocked ue
• Negative pressure inside house
Before resetting the safety limit switch, have
a qualified service technician inspect the
fireplace and venting for these conditions and
repair as needed.
To RESET the safety limit switch, push the
reset button located between the wire terminals
on the back of the switch. Follow the steps be-
low to access the switch (also see Figure 16-C).
To REPLACE the safety limit switch, follow
the steps below.
IMPORTANT: This procedure should only be
performed by a qualified service technician.
1 - Turn OFF electrical power to appliance.
2 - Allow the appliance to cool.
3 - Remove the lower control compartment
access panel.
4 - Refer to Figure 6 on Page 11. Open both
latches under the firebox floor securing
the glass enclosure panel. Remove the
panel by tilting it outward at the bottom
and lifting it up. Set aside the panel, taking
care to protect it from damage.
5 - Remove the (3) screws securing the lintel,
and then remove the lintel. One of the lintel
cabinet top holes is shown in Figure 16.
6 - Remove the (3) screws securing the
scoop, and then remove the scoop. Refer
to Figure 16 for correct location for model
size.
7 - Reset the limit switch per Figure 16-B. If
unit does not reset, remove the (2) screws
securing the safety switch bracket, and
To access the Safety Limit Switch, reach in and up
behind the Bracket, and push the red reset button
located between the two Wire Terminals.
(right side Scoop removed)
in Cabinet Top
~
~
Bracket (right side Scoop removed)
Right Side
Scoop
3 Scoop Screws
Lintel Screw Hole
in Cabinet Top
Right Side
of Firebox
18
LENNOX HEARTH PRODUCTS • MERIT
®
SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • CARE AND OPERATION INSTRUCTIONS
Figure 17
MILLIVOLT WIRING DIAGRAM
CAUTION: WHEN SERVICING CONTROLS,
LABEL ALL WIRES PRIOR TO DISCONNECTION.
WIRING ERRORS CAN CAUSE IMPROPER AND
DANGEROUS OPERATION.
VERIFY PROPER OPERATION AFTER SERVICING.
If any of the original wire must be replaced,
use Type AWM 105º C - 18 gage wire ONLY.
High Limit Switch
Control Switch*
Gas Control
Valve Terminals
Thermopile
H
I
L
O
W
P
I
L
O
T
P
I
L
O
T
O
N
ti
O
F
F
IN
OUT
TH
TP HTP
T
B-VENT APPLIANCES ONLY: The High Limit
Switch must be factory installed in series,
as shown. If wires to this switch must be
replaced, use Type AWM 200°C - 18 gage
wire ONLY.
_________
*Control switch options: ON/OFF wall switch, unit-mountable ON/OFF switch,
or ON/OFF remote control system
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
WIRING DIAGRAMS
Wiring diagrams are provided for reference
purposes only. This information is also provided
on schematics attached directly to the appliance
on a pullout panel located within the control
compartment.
CAUTION: LABEL ALL WIRES PRIOR TO
DISCONNECTION WHEN SERVICING
CONTROLS. WIRING ERRORS CAN
CAUSE IMPROPER AND DANGEROUS
APPLIANCE OPERATION.
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.
UNIT CATALOG NUMBERS AND
SHIPPING WEIGHTS
PRODUCT REFERENCE INFORMATION
Model Number ________________________________________________________
Serial Number ________________________________________________________
Date Installed _________________________________________________________
Gas Type Used ________________________________________________________
Dealer Name _________________________________________________________
ORDERING REPLACEMENT
PARTS
A complete parts list is found at the end of
this manual. Use only parts supplied from the
manufacturer.
With proper care and maintenance, your appli-
ance will provide many years of enjoyment. If
you should experience any problem, rst refer
to the troubleshooting guide in this manual. If
problem persists, contact your Lennox Hearth
Products dealer or distributor.
Normally, all parts should be ordered through
your Lennox Hearth Products distributor or
dealer. Parts will be shipped at prevailing prices
at time of order.
When ordering repair parts, always give the
following information:
1. Appliance model number.
2. Appliance serial number.
3. Part number.
4. Part description.
5. Quantity required.
6. Appliance installation date.
If you encounter any problems or have any
questions concerning the installation or ap-
plication of this system, please contact your
dealer or distributor.
PRODUCT REFERENCE
INFORMATION
We recommend that you record the important
reference information about your fireplace in
the space provided below.
Please call Lennox Hearth Products for the
phone number of your nearest Lennox Hearth
Products dealer who will answer your questions
or address your concerns.
LENNOX HEARTH PRODUCTS
1508 Elm Hill Pike, Suite 108
Nashville, TN 37210
Visit us at www.Lennox.com
1-800-9-LENNOX
Cat.
No.
Model
Shipping
Weight
Shipping
Volume
H8099 MLBV-35NM 86 lbs. 10.61 cu. ft.
H8100 MLBV-35PM 86 lbs. 10.61 cu. ft.
H8101 MLBV-35NE 86 lbs. 10.61 cu. ft.
H8102 MLBV-40NM 108 lbs. 14.01 cu. ft.
H8103 MLBV-40PM 108 lbs. 14.01 cu. ft.
H8104 MLBV-40NE 108 lbs. 14.01 cu. ft.
19
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
LENNOX HEARTH PRODUCTS • MERIT
®
SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • CARE AND OPERATION INSTRUCTIONS
ACCESSORY COMPONENTS
Remote Control Kit, Standard
Cat. No. Model No. Description
H0249 RCL Std Remote Control System
Unit Moutable ON/OFF Switch Kit
Cat. No. Model No. Description
80L41 FRS ON/OFF Switch Kit
Unit-Mountable ON/OFF Switch
Install the ON/OFF switch kit in the mounting bracket
to provide ON/OFF operation in lieu of a wall switch.
Standard ON/OFF Remote Control System
The Model RCL Standard Remote Control System
provides convenient fireplace ON/OFF control in an
easy-to-install kit.
The kit includes the following items:
• Hand-held transmitter with ON/OFF buttons that
briey illuminate when pressed, to indicate a signal
has been sent
• Remote receiver with wall-mount cover plate
(receiver can be wall- or hearth-mounted)
• All required hardware to install the unit
• Detailed instructions
Model RCL is designed to operate with all millivolt and
electronic ignition systems, as well as either natural
gas or propane gas appliances.
ON/OFF Wall Switch Kit
Install the wall switch in a convenient location near
the fireplace to provide ON/OFF operation in lieu of
a unit-mounted switch.
White Wall Switch Kit
Cat. No. Model No. Description
85L87 FWSK OFF/ON Wall Switch Kit
Figure 18
_________
*Control switch options: ON/OFF wall switch, unit-mountable ON/OFF switch,
or ON/OFF remote control system
ELECTRONIC IGNITION WIRING DIAGRAM
TRANSFORMER 3V
BROWN
BROWN
BLACK
BATTERY BACK-UP
BLACK (SENSOR)
BLACK (IGNITER)
IGNITER MODULE
3V
RED
PILOT
IN
OUT
VENT
LO
HI
TH
TP
TH
TP
IN
ORANGE (THTP)
BLACK (TP)
GREEN (TH)
HIGH LIMIT SWITCH
Pilot Burner
Pilot Tube
Assembly
Schematic Representation Only
Electronic Gas Control Valve - DEXEN
B-Vent appliances only - High limit
switch must be factory installed as
shown. If wires to this switch are
replaced, wires must be Type AWM
200°C - 18 gage wire ONLY.
CONTROL
SWITCH *
UNIT MOUNTED
ON/OFF SWITCH,
IF SUPPLIED
Junction Box
J-Box Wiring
BK
W
G
CAV 021
* Control Switches: Wall On/Off
Switch, Unit Mounted On/Off Switch
or Remote Control Switch.
NOTES:
1. If any of the original wire as supplied
must be replaced, use Type AWM
105°C - 18 gage wire ONLY.
2. 120 VAC, 60 Hz - Less than 3 Amps.
CAUTION: label all wires prior to
disconnection when servicing controls.
Wiring errors can cause improper and
dangerous operation. Verify proper
operation after servicing.
20
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
LENNOX HEARTH PRODUCTS • MERIT
®
SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • CARE AND OPERATION INSTRUCTIONS
Barrier Screen Panel Kit
This easy-to-install optional screen panel in-
stalls over the standard glass enclosure panel
and provides a barrier to prevent direct contact
with the hot glass surface.
Note: Barrier Screen Panels cannot be used
in conjunction with Style View doors.
Barrier Screen Panel Kits
Cat. No. Model No. Models Where Used
H6095 35MSPK MLBV-35
H3989 40LSPK MLBV-40
Style View Screen Doors
These decorative but functional twin-pane screen doors provide a barrier to prevent direct contact with the hot glass surface of the fireplace front
enclosure panel. Style View Screen Doors easily install over the standard glass enclosure panel with heavy-duty magnet door latches (no hardware
required).
ACCESSORY COMPONENTS (continued)
Arch Pane Design
Square Pane Design
ARCH PANE DESIGN KITS
Cat. No. Model Description Model Series
35” Arch Pane Door, Painted
35” Arch Pane Door, Satin Pewter
MLBV-35
H6106
APDML35C
H6107
APDML35SP
40” Arch Pane Door, Painted
MLBV-40
40” Arch Pane Door, Satin Pewter
H6108
APDML40C
H6109
APDML40SP
SQUARE PANE DESIGN KITS
Cat. No. Model Description Model Series
35” Square Pane Door, Painted
35” Square Pane Door, Satin Pewter
MLBV-35
H6098 SPDML35C
H6099
SPDML35SP
40” Square Pane Door, Painted
MLBV-40
40” Square Pane Door, Satin Pewter
H6100 SPDML40C
H6101
SPDML40SP
Arch Pane Design
Square Pane Design
ARCH PANE DESIGN KITS
Cat. No. Model Description Model Series
35” Arch Pane Door, Painted
35” Arch Pane Door, Satin Pewter
MLBV-35
H6106
APDML35C
H6107
APDML35SP
40” Arch Pane Door, Painted
MLBV-40
40” Arch Pane Door, Satin Pewter
H6108
APDML40C
H6109
APDML40SP
SQUARE PANE DESIGN KITS
Cat. No. Model Description Model Series
35” Square Pane Door, Painted
35” Square Pane Door, Satin Pewter
MLBV-35
H6098 SPDML35C
H6099
SPDML35SP
40” Square Pane Door, Painted
MLBV-40
40” Square Pane Door, Satin Pewter
H6100 SPDML40C
H6101
SPDML40SP
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Lennox Hearth MLBV-35PM Manuel utilisateur

Marque
Lennox Hearth
Modèle
MLBV-35PM
Catégorie
Cheminées
Taper
Manuel utilisateur
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