Lennox MPDP35IN, MPDP40IN, MPDP35IP, MPDP40IP Care And Operation Instructions Manual

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Page 1

CARE AND OPERATION INSTRUCTIONS

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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.

MPD Pro Direct-Vent Gas Fireplaces

P/N 506017-05 Rev. NC 06/2012

This manual is one of a set of two supporting this product. Refer to P/N 506015-06 for Installation Instructions.

Ce manuel est disponible en francais, simplement en faire la demande. Numéro de la pièce 506223-40.

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

Wait...

DON’T THROW IT AWAY!

This manual contains

important operating

and safety

information.

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.

MODELS

OTL Report No. 116-F-59-5

MPDP35IN MPDP40IN

Portland

ELECTRONIC:

MPDP35IP MPDP40IP

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LENNOX HEARTH PRODUCTS • MERIT PLUS® DIRECT VENT GAS FIREPLACES (MPDP35/40) • CARE AND OPERATION INSTRUCTIONS

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.

Safety and

Your Fireplace

To help us keep you up-to-date on product information and offers, please take a few moments to register your product online at

www.lennox.com (Hearth / Owner Resources)

•

FREE

The Lennox® SAFETY GUARD protects against

severe burns and injuries by preventing direct contact

To receive your FREE SAFETY GUARD, call 1-800-655-2008

SAFETY GUARD

with the front glass surface of your ﬁreplace.

or visit

www.lennox.com (Hearth / Owner Resources).

Note: Safety Guards may not be available for some

older models that are no longer in production.

OFFER

•

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

BTU Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Gas Pressure Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Oriﬁce Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Burn-In Period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Operation/Care of Your Appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Gas Controls Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Front Glass Enclosure Panel, Removal and Installation . . . . . . . . . . . . . . . . . . 12

Install Volcanic Stone, Embers and Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Burner Flame Appearance/Sooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Burner Flame Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Electronic Appliance Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Ordering Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Product Reference Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Accessory Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Maintenance Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Lighting Instructions – Electronic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Troubleshooting Guide – Electronic Gas Control System . . . . . . . . . . . . . . . . . 24

Replacement Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

All parts of your Lennox

Hearth Products ﬁreplace

get EXTREMELY HOT!

 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

ﬁreplace, to help remind everyone of the dangers associated with high temperatures (see page 5).

 Read Important Safety Information on

page 4.

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LENNOX HEARTH PRODUCTS • MERIT PLUS® DIRECT VENT GAS FIREPLACES (MPDP35/40) • CARE AND OPERATION INSTRUCTIONS

[FRENCH] [SPANISH]

La sécurité et

votre foyer

Toutes les parties de votre foyer

Lennox Hearth Products deviennent

EXTRÊMEMENT CHAUDES !

 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.

Seguridad y

su chimenea

¡Todas las partes de la chimenea

Lennox Hearth Products se ponen

MUY CALIENTES!

 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.

 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.

 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.

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LENNOX HEARTH PRODUCTS • MERIT PLUS® DIRECT VENT GAS FIREPLACES (MPDP35/40) • CARE AND OPERATION INSTRUCTIONS

Important Safety Information

1. WARNING: Do not operate appliance with the glass front removed, cracked or broken.

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 11.

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.

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 11.

[SPANISH]

Información importante de seguridad

1. ADVERTENCIA: No opere el artefacto con el frente de vidrio quitado, agrietado o roto.

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 11.

Page 5

LENNOX HEARTH PRODUCTS • MPD PRO DIRECT-VENT GAS FIREPLACES (MPDP35/40) • CARE AND OPERATION INSTRUCTIONS

HOMEOWNER’S INSTRUCTIONS - ATTACHING SAFETY IN OPERATION WARNINGS

ATTACHING SAFETY IN OPERATION WARNINGS

Your ﬁreplace has been furnished with safety instruction labels that are to be afﬁxed to the operation and control points of the ﬁreplace. A safety instruction label should be afﬁxed to the receiver wall switch plate where the ﬁreplace is turned on and off (See Figure A) and 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 afﬁxed at these spots, locate the multi-lingual adhesive labels provided with these instructions and proceed as follows:

1. Locate the wall receiver that controls the ﬁreplace (verify the switch operates the ﬁreplace by turning it on and off). Clean the wall receiver plate thoroughly to remove any dust and oils. Afﬁx the label to the surface of the plate of the wall receiver that controls the ﬁreplace (Figure A). Choose the language primarily spoken in the home.

2. Locate the remote control 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 additional safety instruction labels free of charge.

Cat. No. H8024 Replacement Label Kit

LENNOX HEARTH PRODUCTS 1-800-655-2008

Note: English is red text on clear label. French and Spanish are white text on black label.

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 du récepteur mural contrôlant l’allumage du foyer (voir Figure A) et 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 le récepteur mural 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 du récepteur mural pour éliminer la poussière et les traces de graisse ou d’huile. Collez l’étiquette sur la surface de la plaque du récepteur mural qui contrôle le foyer (Figure A). Choisissez la langue qui est principalement parlée dans la résidence du propriétaire.

2. Repérez la télécommande et 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 principalement parlée dans la résidence du propriétaire.

3. Si vous ne trouvez pas les étiquettes, veuillez appeler Lennox Hearth Products ou votre distributeur Lennox Hearth Products local pour recevoir gratuitement des étiquettes supplémentaires.

Étiquettes de remplacement, n° cat. H8024

LENNOX HEARTH PRODUCTS 1-800-655-2008

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 los puntos de operación y control de la chimenea. Se debe colocar una etiqueta de instrucciones de seguridad en la placa del interruptor de pared del receptor desde el cual se enciende y se apaga la chimenea (ver la Figura A) y en el transmisor de control remoto (Figura B). 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 receptor de pared que controla la chimenea (veriﬁque que el interruptor opera la chimenea encendiéndola y apagándola). Limpie bien la placa del receptor de pared para quitar el polvo y aceite. Pegue la etiqueta en la superﬁcie de la placa del receptor de pared que controla la chimenea (Figura A). Seleccione el idioma que más se habla en la casa.

2. Identiﬁque el transmisor de control remoto 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 1-800-655-2008

Nota: La etiqueta en inglés es transparente con texto rojo. Las etiquetas en francés y español son negras con texto blanco.

SAFETY LABEL

DIAGRAMS

Figure A

DIAGRAMMES DES ÉTIQUETTES

DE SÉCURITÉ

Remote

Off

PRG

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Figure B

DIAGRAMAS DE ETIQUETAS

DE SEGURIDAD

Page 6

LENNOX HEARTH PRODUCTS • MERIT PLUS® DIRECT VENT GAS FIREPLACES (MPDP35/40) • CARE AND OPERATION INSTRUCTIONS

APPLIANCE INSTALLATION, SERVICE, AND MAINTENANCE NOTICES

WARNING: Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage. Refer to the owner’s information manual provided with this appliance. For assistance or additional information consult a qualiﬁed installer, service agency or the gas supplier.

AVERTISSEMENT : Une installation, un réglage, une modiﬁcation, une réparation ou un entretien mal effectué peut causer des dommages matériels ou des blessures. Voir la notice de l’utilisateur qui accompgne l’appareil. Pour de l’aide ou des renseignements supplémentaires, consultez un installateur, un technicien agréé ou le fournisseur de gaz.

Only trim kit(s) supplied by the manufacturer shall be used in the installation of this appliance.

Seules les trousses de garniture fournies par le fabricant doivent être utilisées pour l’installation de cet appareil.

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.

The vent termination is hot while in operation and for a period of time following the use of the ﬁreplace. Young children should be carefully supervised when they are in the same area as a hot termination.

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.

Cet appareil doit être utilisé uniquement avec les types de gaz indiqués sur la plaque signalétique. Ne pas l’utiliser avec d’autres gaz sauf si un kit de conversion certiﬁé est installé.

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 primary heat source when installed in a dwelling.

CAUTION: Hot while in operation. Do not touch. Severe Burns may result. Keep children, clothing furniture, gasoline and other liquids having ﬂammable vapors away.

ATTENTION : L’appareil est chaud lorsqu’il fonctionne. Ne pas toucher l’appareil. Risque de brûlures graves. Surveiller les enfants. Garder les vêtements, les meubles, l’essence ou autres liquides produisant des vapeur inﬂammables loin de l’appareil.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

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.

GENERAL INFORMATION

The ﬁreplace models covered in this manual are direct-vent sealed combustion gas ﬁreplace heaters designed for residential application. These direct-vent appliances operate with the combustion chamber completely isolated from the indoor environment.

All air for combustion is brought in from the outside and exhaust gases are vented through the same direct-vent, co-axial (intake/exhaust) vent system.

These Electronic appliances are designed to operate on natural or propane gas. The system is switchable between standing and intermittent pilot modes. External electrical power is required to operate these units. If the system operates on line voltage, four (4) "AA" batteries (in receiver) can be used as a backup in case of a power outage.

These appliances comply with National Safety Standards and are tested and listed by OMNI-Test Laboratories, Inc. (Report No. 116-F-59-5) to ANSI ZZ21.88-2009 (in Canada, CSA-2.33-2009), and CAN/CGA-2.17-M91 (R2009) in both USA and Canada, as vented gas ﬁreplace heaters.

The Installation must conform to local codes or, in the absence of local codes, with the National Fuel Gas Code, ANSI Z223.1/NFPA 54-latest edition, or the Natural Gas and Propane Installation Code, CAN/CSA B149.1-latest edition. The appliance, when installed, must be electrically grounded in accordance with local codes or, in the absence of local codes, the latest edition of the National Electrical Code, ANSI/NFPA 70, or the Canadian Electrical Code, CSA C22.1 - latest editions.

Page 7

LENNOX HEARTH PRODUCTS • MERIT PLUS® DIRECT VENT GAS FIREPLACES (MPDP35/40) • CARE AND OPERATION INSTRUCTIONS

GENERAL INFORMATION (continued)

BTU Input

These electronic models come standard with a remotely-modulated gas valve; ﬂame appearance and heat output cannot be controlled at the gas valve. The BTU Input for these appliances is shown in Table 1.

Input (BTU/HR) Gas Valves (all models)

Input Rate (BTU / HR)

Models

MPDP35 25,000 22,000 MPDP40 31,000 29,000

Nat. Gas Prop. Gas

Table 1

Gas Pressure - All Models

Tables 2 and 3 show the appliances' inlet and manifold gas pressure requirements:

Inlet Gas Supply Pressure

(all models)

Fuel # Minimum Maximum

Natural Gas

Propane

4.5" WC

(1.12 kPa)

11.0" WC

(2.74 kPa)

10.5" WC

(2.61 kPa)

13.0" WC

(3.23 kPa)

Table 2

Manifold Gas Supply Pressure

(all models)

Fuel # Low High

Natural

Gas

Propane

(Lo)

1.6" WC

(0.40 kPa)

(Lo)

6.3" WC

(1.57 kPa)

(Hi) 3.5" WC

(0.87 kPa)

(Hi) 10.0" WC

(2.49 kPa)

Table 3

Green Wire

(From DFC Wire

Harness)

Manifold (Out)

Test Port

Line (In) Test Port

Test gauge connections are provided on the front of the electronic gas control valve (identiﬁed IN for the inlet and OUT for the manifold side). The control valves have a 3/8" (10mm) NPT thread inlet and outlet side of the valve (refer to Figure 1).

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.

The appliance and its appliance main gas valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psi (3.5 kPa).

The appliance must be isolated from the gas supply piping system by closing its equipment shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psi (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 oriﬁce sizes (marked with an "*" in Table 4 ).

For elevations above 4500 feet, contact your gas supplier or 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 or by 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.

Connect GTMS Wire Harness

Pressure Regulator Tower

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.

Flame breadth, height and width will diminish 4% for every 1,000 feet of altitude.

Burner Oriﬁce Sizes

Elevation 0-4500 feet ( 0-1372 meters)

Model

Series

MPDP35

MPDP40

Table 4

Nat.Gas

drill size (inches)

#42 (.093")*

H3721•

#36 (.1065")*

18L40•

* Standard size installed at factory

• Part /Cat. Number

Propane

drill size (inches)

#54 (.055")*

99K79•

#52 (.063")*

21L01•

Burn-in Period

During the ﬁrst few ﬁres of this appliance there will be some odor due to the curing of the paint and burning off of lubricants used in the manufacturing process. Depending on your use, the burn-in period may take a few hours or a few days.

KEEP YOUR HOUSE WELL VENTILATED DURING THE CURING PROCESS. THE ODOR AND HAZE EMITTED DURING THE CURING PROCESS CAN BE QUITE NOTICEABLE AND MAY SET OFF A SMOKE DETECTOR.

Do not turn on the blower during the burn-in period.

NOTICE: 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 glass cleaning instructions on Page 11.

Orange Wire

(From DFC Wire

Harness)

Yellow Ground Wire (From DFC Wire Harness)

Figure 1 SIT Proﬂame Valve

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Page 8

LENNOX HEARTH PRODUCTS • MERIT PLUS® DIRECT VENT GAS FIREPLACES (MPDP35/40) • 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 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.

Burner Assembly

Pilot Assembly

Remote Control System

The Remote and Receiver allows you to command the functions of your ﬁreplace from the comfort of your chair. It is conﬁgured to control the On/Off primary burner operation, its ﬂame levels (through six levels) and provides On/Off and Smart thermostatic control of this appliance.

The system controls fan speed through six (6) levels and has a constantly powered 120V/60Hz power outlet.

The Receiver connects directly to the gas valve, stepper motor and the Fan Control Module with and umbilical cord wiring harness (see Wire Diagram on Page 18).

The Receiver is powered by 4 AA type batteries, located within.

The Receiver accepts commands via radio frequency from the Transmitter and does not require line-of-sight operation.

The Receiver three position slider switch can be set to one of three positions: ON (Manual Override), REMOTE (Remote Control) or OFF.

Initializing The System For The First Time

Main Gas Shut-Off Valve

*CPI Switch - Switches from an intermittent pilot mode to a standing pilot mode (a standing pilot stays

lit when the ﬁreplace is off).

DFC Board

Gas Valve

CPI Switch*

*CPI Switch Positions (o) = Intermittent Pilot Mode (-) = Standing Pilot Mode

Door Latch

Figure 2

Gas Controls/Control Compartment Access

The gas control valve can be found in the control compartment. See Figure 2.

Accessing Control Compartment:

Install the 4 AA batteries into the receiver battery bay (behind the wall switch plate).

Note: Install the batteries into the battery bay as indicated on the battery cover. Ensure that batteries are installed with proper polarity (+/-).

Place the three position slider switch in the "Remote" position (see Figure 3). Using the end of a paper clip, or other similar object, insert the end of the paper clip into the hole marked "PRG" on the Receiver front cover. The Receiver will "beep" three (3) times to indicate that it is ready to synchronize with a Transmitter.

Slider Switch In Remote Position

Remote

Off

To remove the lower access panel, slide the hinge pin on the left side of the panel to the RIGHT until it disengages from the left corner post hole. Pull the panel diagonally to the LEFT, away from the ﬁreplace.

To ease panel replacement, press the spring-loaded magnet catch to temporarily lock it in the retracted position, and then close the panel.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

PRG

Figure 3

Page 9

LENNOX HEARTH PRODUCTS • MERIT PLUS® DIRECT VENT GAS FIREPLACES (MPDP35/40) • CARE AND OPERATION INSTRUCTIONS

Hot Fireplace Will Cause Severe Burns

Never Allow Children to Touch Glass or other Fire-

place Parts

WARNING

Transmission

Thermostat

Off/On/Smart

Set Point

Temp./Level/State

Flame On

Figure 4 Indicator Icons

Child Safety Lock-Out Low Battery Alarm

Room Temperature

Fan Control

Maximum Level Indicatiors

WARNING

Fire hazard. Can cause severe injury or death. The receiver causes ignition of the appliance. The appliance can turn on suddenly. Keep away from the appliance burner when operating the remote system or activating manual bypass of the remote system.

CAUTION

Property damage hazard. Excessive heat can cause property damage. The appliance can stay lit for many hours. Turn off the appliance if it is not going to be attended for any length of time. Always place the Transmitter where children can not reach it.

Flame Level 5

Figure 5

Blue LCD Display

ON/OFF Key

ROOM TEMPERATURE Key

UP/DOWN Arrow Key

MODE Key

Figure 7

Install the 3 AAA type batteries in the Transmitter battery bay, located on the base of the Transmitter. With the batteries already installed in the Transmitter, push the ON button. The Receiver will "beep" four times to indicate the Transmitter's command is accepted and sets to the particular code of that Transmitter. The system is now initialized.

Flame Level Maximum

Figure 6

Low Battery Power Detection

The life span of the Receiver batteries depends on various factors: quality of the batteries used, the number of ignitions of the appliance, the number of changes to the room thermostat set point, etc.

When the Receiver batteries are low, two "beeps" will be emitted from the Receiver when it receives and ON/OFF command from the Transmitter.

This is an alert for a low battery condition for the Receiver. When the batteries are replaced the "beep" will be emitted from the Receiver when the ON/OFF key is pressed (See Initializing The System).

When the transmitter batteries are low, a battery icon will appear on the LCD display of the transmitter before all battery power is lost. When the batteries are replaced this icon will disappear.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Temperature Indicator Display

With the system in the "OFF" position, press the Thermostat Key and the Mode Key at the same time (see Figure 7). Look at the LCD screen on the Transmitter to verify that a C or F is visible to the right of the Room Temperature display (see Figure 4).

Turn On The Appliance

Press the ON/OFF Key on the Transmitter. The Transmitter display will show all active Icons on the screen. At the same time, the Receiver connects the thermopile to the gas valve millivolt coil and the appliance main burner turns on. A single "beep" from the Receiver will conﬁrm reception of the command.

Turn Off The Appliance

Press the ON/OFF Key on the Transmitter. The Transmitter LCD display will only show the room temperature and Icon. At the same time, the Receiver disconnects the thermopile from the gas valve millivolt coil and the appliance burner turns off. A single "beep" from the Receiver conﬁrms reception of the command.

Remote Flame Control

The system has six (6) ﬂame levels. See Figure 5 for an example. With the system on, and the ﬂame level at the maximum in the appliance, pressing the Down Arrow Key once will reduce the ﬂame height by one step until the ﬂame is turned off.

Page 10

LENNOX HEARTH PRODUCTS • MERIT PLUS® DIRECT VENT GAS FIREPLACES (MPDP35/40) • CARE AND OPERATION INSTRUCTIONS

The Up Arrow Key will increase the ﬂame height each time it is pressed. If the Up Arrow Key is pressed while the system is on but the ﬂame is off, the ﬂame will come on in the high position (see Figure 6). A single "beep will conﬁrm reception of the command.

Room Thermostat (Transmitter Operation)

The Remote Control can operate as a room thermostat. The thermostat can be set to a desired temperature to control the comfort level in a room.

To activate this function, press the Thermostat Key. The LCD display on the Transmitter will change to show that the room temperature is "ON" and the set temperature is now displayed (see Figure 7). To adjust the set temperature, press the Up or Down Arrow Keys until the desired set temperature is displayed on the LCD screen of the Transmitter.

Smart Thermostat (Transmitter Operation)

The smart Thermostat function adjusts the ﬂame height in accordance to the difference between the set point temperature and the actual room temperatures. As the room temperature gets closer to the set point, the Smart Function will modulate the ﬂame down.

To activate this function, press the Thermostat Key until the word "SMART" appears to the right of the temperature bulb graphic. To adjust the set temperature, press the Up or Down Arrow Keys until the desired set temperature is displayed on the LCD screen of the Transmitter (see Figure 7).

Fan Speed Control

This appliance is equipped with a hot air circulating fan. The speed of the fan is controlled by the Remote. The fan speed can be adjusted through six (6) speeds.

To activate this function use the Mode Key to index to the fan control icon (see Figure 4). Use the Up/Down Arrow keys to turn on, off or adjust the fan speed. A single "beep" will conﬁrm reception of the command.

Note: The fan can be controlled only by the remote. Turning the ﬁreplace off with the wall mounted three position slider switch will NOT turn off the fan. To turn off the fan, use the remote in lieu of or prior to shutting the ﬁreplace off at the wall.

Fan speed will be indicated by either an Off, Level Bar, or HI shown in the Set Point/Temp/ Level/State indicator area.

Key Lock

This function will lock the keys to avoid unsupervised operation. To activate this function, press the MODE and UP keys at the same time. To de-activate this function, press MODE and UP Keys at the same time.

CPI Switch - Intermittent/Standing Pilot Mode

This ﬁreplace can be switched from intermittent ignition to a standing pilot simply by toggling the switch located in the lower control compartment (refer to Figure 2). To save energy, switch to intermittent mode. To have a standing pilot, which will help startup in the winter by warming the ﬁrebox and the glass, switch to standing pilot.

The standing pilot mode is indicated by a pilot that comes on and remains lit when the ﬁreplace is off.

Manual Bypass Of The Remote System

If the batteries of the Receiver or Transmitter are low or depleted, the appliance can be turned on manually by sliding the three position slider switch to the ON position. This will bypass the remote control feature of the system and the appliance main burner will come on if the gas valve is in the "On" position.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Page 11

LENNOX HEARTH PRODUCTS • MERIT PLUS® DIRECT VENT GAS FIREPLACES (MPDP35/40) • CARE AND OPERATION INSTRUCTIONS

MAINTENANCE

(See Maintenance Schedule, Page 21)

Refer to the maintenance schedule for maintenance tasks, procedures, frequency and by whom they should be performed. Always verify proper operation of the appliance after servicing.

WARNING

Turn off gas and electrical power to the ﬁreplace and allow it to cool before cleaning or servicing the appliance.

CAUTION: Wear gloves and safety glasses for protection while doing required maintenance.

Verify proper operation after servicing.

S'assurer que l'appareil fonctionne adéquatement une fois l'entretien terminé.

Always turn off the gas before cleaning. Before re-lighting, refer to the lighting instructions in this manual. Instructions are also found on a pull-out panel located in the control compartment.

Always keep the appliance area clear and free from combustible materials, gasoline and other ﬂammable liquids.

Inspect Venting System

The appliance and venting system should be thoroughly inspected before initial use and at least annually by a qualiﬁed service technician (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 qualiﬁed 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.

Cleaning Glass

(see Front Glass Enclosure Panel, Removal and Installation on Page 12).

Note: Clean glass after ﬁrst two weeks of opera- tion (after Burn-In period is over) and then only when necessary and when the ﬁreplace is cool. Wipe surface with a clean, dampened, soft cloth. Follow with a dry, soft towel as desired. Take care not to scratch the glass surface.

WARNING: Do not use abrasive cleaners on glass. Never clean the glass when it is hot.

The viewing glass should be cleaned periodically to remove any build-up caused from the

following:

• During start-up, it is normal for condensation to form on the inside of the glass (this condensation and fog will usually disappear in a few minutes). The moisture can cause lint, dust and other airborne particles to cling to the glass surface.

• Initial curing of the high temperature paint and burning off of lubricants used in the manufacturing process may result in a ﬁlm on the glass.

• A white coating may form on the glass as a result of impurities and minerals in the fuel.

It is recommended that the glass be cleaned two or three times during each heating season, depending on the circumstances present. The following cleaning solutions are approved for use to clean glass:

• Non-ammonia based household cleaner

• 50%-50% mix of white vinegar and water

• Gas ﬁreplace/stove glass cleaner

Inspect Glass Gasket - Visually inspect the gasket on the backside of the glass enclosure panels. The gasket surface must be clean, free of irregularities and seated ﬁrmly.

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 appliance be kept clean.

Clean Logs And Burner

Carefully remove the logs (use care when handling the ﬁber 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 build-up and will alter the performance of the appliance.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Replacing Logs

If the logs become damaged by accident or improper handling and need replacement, use only the proper replacement logs from manufacturer (see Pages 25 and 26 for order- ing information).

Reinstall Embers and Logs

Carefully follow placement instructions on Pages 13 through 15. All logs should ﬁt onto corresponding pins and/or log stoppers. This will ensure a proper ﬂame and safe combustion.

Inspect Wiring

Refer to wiring diagrams on Page 18.

CAUTION: Label all wires prior to disconnection 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 fonctionnement inadéquat et dangereux.

Inspect and clean all wire connections. Ensure that there is no melting or damage. Inspection should include:

• Terminals at the Valve

• CPI Switch (pilot mode)

Inspect Burner Flame and Pilot Flame Appearance

Periodically do a visual check of the burner ﬂame and the pilot ﬂame. Ensure that the burner ﬂame appearance resembles the ﬂame shown in Figures 13 and 14 and as described in Flame Appearance and Sooting on Page

16. Refer to Figure 16 on Page 17 for more information about the pilot ﬂame appearance. Contact a qualiﬁed service technician at once if any abnormal condition is observed.

Small Area Paint Touch-up

Only use a factory supplied paint kit for touchups. Paint is available at your local Lennox Hearth Products dealer. Never attempt to paint a hot ﬁreplace.

Do not attempt to repaint the appliance until the ﬁnish is completely cured (see Burn-In Period on Page 7). If the surface later becomes stained or marred, it may be lightly sanded and touched up with spray paint.

Page 12

LENNOX HEARTH PRODUCTS • MERIT PLUS® DIRECT VENT GAS FIREPLACES (MPDP35/40) • CARE AND OPERATION INSTRUCTIONS

Front Glass Enclosure Panel, Removal and Installation

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 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

Any safety screen or guard removed for servicing the appliance 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.

Only doors certiﬁed with the appliance shall be used.

Seules des portes certiﬁées pour cet appareil doivent être utilisées.

WARNING: DO NOT abuse glass door by striking or slamming shut.

These are direct-vent appliances. They are designed to operate only when the front glass enclosure panels are installed. Generally the front glass enclosure panel should not be removed except to gain access to the components within the ﬁrebox.

Installing the Glass Enclosure Panel

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.

Position the door in front of the ﬁrebox opening with the bottom of the door held away from the ﬁreplace (Figure 8). Hook the top ﬂange of the door frame over the top of the ﬁrebox frame.

Let the bottom of the door frame swing gently in towards the ﬁreplace ensuring that the gasket seats evenly as the door frame draws shut. Fasten the two latches located underneath the ﬁrebox ﬂoor to the door's vee-ﬂange. Close both the latches securely.

Lower Compartment Door and Hinge

Glass Door

Glass Door Frame Top Flange

WARNING

Do not operate appliance with the glass front removed, cracked or broken.

AVERTISSEMENT

Ne pas utiliser l'appareil si le panneau frontal en verre n'est pas en place, est craqué ou brisé.

Removing the Glass Enclosure Panel

Remove the top radiant panel assembly. To access the two glass door securing latches,

ﬁrst open the lower control compartment door (Figure 8 ) by pushing in the right top corner of the door (the door is hinged at the bottom).

[Optional] Remove the bottom compartment door by sliding the hinge pin, located at the door’s left side, to the right until it disengages from the left corner post hole. Pull the door diagonally to the left, away from the ﬁreplace.

Locate the two spring latches at the top of the control compartment and disengage them from the door frame bottom vee-ﬂange by pulling the latches forward and down to release them from the door channel.

Pull the bottom of the door out a few inches and grasp it on the right and left. Gently lift to release the door from its channel above the door. Pull the door forward.

Glass Door Frame Bottom Vee-flange

Glass Door Spring Latch

Figure 8

Firebox Floor

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Page 13

LENNOX HEARTH PRODUCTS • MERIT PLUS® DIRECT VENT GAS FIREPLACES (MPDP35/40) • CARE AND OPERATION INSTRUCTIONS

Glowing Embers

INSTALL VOLCANIC STONE, GLOWING EMBERS, AND LOGS

WARNINGS

• 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 accord-

ing 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.

Step 2. Install Volcanic Stone.

Sprinkle the volcanic stone in a pleasing pattern. The volcanic stone should be placed directly on top of the ﬁrebox bottom, along the front and to the back at the right and left sides of the burner. Position any optional ceramic ﬁber liners before placing the stone. Logs should be positioned after the volcanic stone.

Note: 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).

Glowing Embers

Separate into Quarter

Size (separate) Pieces

Bag of Glowing

Embers (rockwool)

Figure 9

Step 3. Separate the Glowing Embers into pieces about the size of a quarter (Figure 9). Keep the pieces ﬂuffed up, not matted.

Distribute these pieces over the front surface of the burner, as shown in Figure 10, but DO NOT PLACE OVER BURNER SLOTS.

Do not use more than is necessary. When properly positioned, the Glowing Embers will cover approximately 65% of the front burner and with no appreciable gaps or openings. Ensure that the main burner ports remain uncovered by the ember material.

Step 4. Placement of Logs

All 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 ﬂame peaks and should be positioned so they do not impinge the ﬂames.

Step 5. Position the individual logs as shown in Figures 11 and 12. Logs should be placed in the order shown. All logs that have notches to ﬁt over the grate tines should be positioned with these notches directly against the grate.

Handle logs carefully to prevent breakage.

Proper log placement is critical to encourage outstanding ﬂame appearance and prevent sooting. When positioned properly as shown, logs will be positioned between ﬂame peaks and will not impinge any ﬂames.

Refer to Figure 11 for MPDP35 Series appliances and Figure 12 for MPDP40 Series appliances.

REFERENCE

Firebox Accessories / Parts

Cat. No. Model No. Description

88L53 FGE Bag of Glowing Embers

80L42 FDVS

Bag of Decorative Volcanic Stone

NOTE: Turn off all electricity to the appliance before you install the volcanic stone, embers and logs.

Step 1. Remove the appliance front door (see Removing Glass Enclosure panel on Page 12).

Figure 10

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Page 14

LENNOX HEARTH PRODUCTS • MERIT PLUS® DIRECT VENT GAS FIREPLACES (MPDP35/40) • CARE AND OPERATION INSTRUCTIONS

MPDP35 LOG PLACEMENT

Log

Number Description (Stamped #)

1 Log, Rear (39-5) 2 Log, Left (39-1) 3 Log, Right (39-2) 4 Log, Top Center (39-6) 5 Log, Top/Left (39-3) 6 Log, Top/Right (39-4)

Catalog Number for the entire log set: 24M22

Position the individual logs as shown below. Logs should be placed in the order shown. Position the rear log on the brackets at the rear of the ﬁrebox with the log's notches directly over the brackets. Position the right log (log no. 3) by inserting the pin from the rear log into the hole on its upper end. Place the left log and then the smaller left and right top logs. All logs that have notches to ﬁt over the grate tines should be positioned with these notches directly against the grate. All top logs that rest on lower logs, do so over ﬂattened mounting faces in the bottom logs.

Proper log and twig placement is critical to encourage outstanding ﬂame appearance and prevent sooting.

4 3

Figure 11

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Page 15

LENNOX HEARTH PRODUCTS • MERIT PLUS® DIRECT VENT GAS FIREPLACES (MPDP35/40) • CARE AND OPERATION INSTRUCTIONS

MPDP40 LOG PLACEMENT

Log

Number Description (Stamped #)

1 Log, Center (39-8) 2 Log, Rear (138) 3 Log, Right (39-10) 4 Log, Left (39-9) 5 Log, Top/Left (39-11) 6 Log, Top/Right (39-11)

Catalog Number for the entire log set: 24M25

Position the individual logs as shown below. Logs should be placed in the order shown. Position the center log on the burner ﬁrst, then place the glowing embers as shown in Figure 10. Place the rear log, both the right and left, and then the smaller left and right top logs. All logs that have notches to ﬁt over the grate tines should be positioned with these notches directly against the grate. All top logs that rest on lower logs, do so over ﬂattened mounting faces in the bottom logs.

Proper log and twig placement is critical to encourage outstanding ﬂame appearance and prevent sooting.

Figure 12

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Page 16

LENNOX HEARTH PRODUCTS • MERIT PLUS® DIRECT VENT GAS FIREPLACES (MPDP35/40) • CARE AND OPERATION INSTRUCTIONS

BURNER 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 ﬁrst lit, the entire ﬂame may be blue and will gradually turn yellowishorange during the ﬁrst 15 minutes of operation. If the ﬂame remains blue, or if the ﬂame 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 ﬂames 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, 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.

• 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.

Figure 13 - Burner Flame Appearance, Model MPDP35

Figure 14 - Burner Flame Appearance, Model MPDP40

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

If air shutter is closed too far

If air shutter is open too far

Flame

Color

Flame will be orange

Flame will be blue

Air Shutter

Adjustment

Air shutter gap should be increased

Air shutter gap should be decreased

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Page 17

LENNOX HEARTH PRODUCTS • MERIT PLUS® DIRECT VENT GAS FIREPLACES (MPDP35/40) • CARE AND OPERATION INSTRUCTIONS

Adjustment Rod Up

(Fully Open Position)

Air Shutter

Burner Tube

Adjusting Set Screw

Adjustment Rod Down

(minimum air

opening position)

BURNER FLAME ADJUSTMENTS (QUALIFIED TECHNICIANS ONLY)

WARNING

• Air shutter adjustment should only be performed by a qualiﬁed professional service technician.

• Ensure front glass panel is in place and sealed during adjustment.

CAUTION

• Soot will be produced if the air shutter is closed too much. Any damage due to sooting, resulting from improperly setting the air shutter, is not covered under the warranty.

1. Refer to Figures 13, and 14 for proper ﬂame

appearance. To adjust the ﬂame, rotate the adjustment rod toward the back or toward the front of the ﬁreplace (rod located in the lower control area). Position the air shutter to the factory setting as shown in the table in Figure 15.

2. Light the appliance (follow lighting procedure

on lighting label in control compartment or in this Care and Operation Instructions).

3. Allow the burner to operate for at least 15

minutes while observing the ﬂame continuously to ensure that the proper ﬂame appearance has been achieved. If the following conditions are present, adjust accordingly.

• If ﬂame appears weak or sooty, adjust the air shutter, incrementally, to a more open position until the proper ﬂame appearance is achieved.

• If ﬂame remains blue, adjust the air shutter, incrementally, to a more closed position until the proper ﬂame appearance is achieved.

4. Reinstall the lower control compartment

door.

Electronic Appliance Checkout

To light the burner, turn on the remote control. Ensure the igniter lights the pilot. The pilot ﬂame should engulf the ﬂame rod as shown in Figure 16.

Igniter

Ignitor

Pilot

Pilot Hood

Hood

Flame Rod

Sensor

(sensor)

Figure 16 - Pilot Flame Appearance

• The air shutter door and nearby appliance surfaces are HOT. Exercise caution to avoid injury while adjusting ﬂame appearance.

Adjustment Rod Down (fully open position)

sledoM

MPDP35

MPDP40

Figure 15

saG

epyT

Nat.

.porP 61/3 )67.4(

.taN 8/1 )2.3(

.porP

Adjustment Rod Up

(minimum air

opening position)

RIAYROTCAF

RETTUHS

GNITTES

)mm(sehcni

1/16 (1.6)

3/8 (9.6)

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Page 18

LENNOX HEARTH PRODUCTS • MERIT PLUS® DIRECT VENT GAS FIREPLACES (MPDP35/40) • CARE AND OPERATION INSTRUCTIONS

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 appliance will provide many years of enjoyment. If you should experience any problem, ﬁrst refer to the troubleshooting guide in this manual. If problem persists, contact your Lennox Hearth Products dealer or distributor.

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 provide:

1. The model number of the appliance.

2. The serial number of the appliance.

3. The part number.

LENNOX HEARTH PRODUCTS 1508 Elm Hill Pike, Suite 108 Nashville, TN 37210 visit us at www.Lennox.com 1-800-655-2008

4. The description of the part.

5. The quantity required.

6. The installation date of the appliance.

If you encounter any problems or have any questions concerning the installation or application 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.

Fireplace Model Number ________________________________________________

Fireplace Serial Number _________________________________________________

Date Installed _________________________________________________________

Type of Gas Used in Fireplace ____________________________________________

Dealer Name _________________________________________________________

WIRING DIAGRAM

Wiring diagrams are provided here for reference purposes only. This information is also provided on schematics attached directly to the appliance on a pullout panel located within the control compartment.

ELECTRONIC IGNITION WIRING DIAGRAM

JUNCTION BOX

FAN

POWER CORD

120V

FAN CONTROL MODULE

Out

Fan

POWER CORD

Power

Aux Out

CAV 021

CAUTION: LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS. WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS APPLIANCE OPERATION.

Wiring Color Code

B = Black BL = Blue BR = Brown

B, BR, Y, O

G = Green GY = Gray O= Orange

PROFLAME ELECTRONIC VALVE

PU = Purple W = White R = Red

Y O

P = Pink Y = Yellow

ATT ENTION: AU MOM ENT 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.

IGNITER ROD

FLAME SENSOR

SPARK WIRE CABLE

PILOT SENSOR CABLE

DIGITAL

FIREPLACE

BURNER

CONTROL

PILOT BURNER IGNITER-SENSOR ASSEMBLY

PILOT TUBE

PROFLAME DFC BOARD

Figure 17

WALL

RECEIVER

CABLE HARNESS

HIGH-TEMP SLEEVE

Schematic Representation Only

R,PU,GY

G G

P, BL

* Unit Mounted Rocker Switch

UNIT MOUNTED ROCKER SWITCH*

P, BL

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

*Unit Mounted CPI Rocker Switch

OFF (o) = Intermittent Pilot Mode ON (-) = Standing Pilot Mode

DFC WIRE HARNESS

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 5 Amps. CAUTION: label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing.

Page 19

LENNOX HEARTH PRODUCTS • MERIT PLUS® DIRECT VENT GAS FIREPLACES (MPDP35/40) • CARE AND OPERATION INSTRUCTIONS

Product Reference Information

Cat.

No.

H8568 MPDP35IN (NG)

H8569 MPDP35IP (LP)

H8570 MPDP40IN (NG)

H8571 MPDP40IP (LP)

Model

Ship.

Wt.

113 lb. 15.8 cu. ft.

147 lb. 20.2 cu. ft.

Ship.

Volume

REQUIRED ACCESSORIES

The brickaded panel liner kits include ceramic panels of the side walls, the rear and the bafﬂe of the ﬁrebox. The panels have brick-like features in relief.

One of the following kits must be installed for safe operation of this appliance.

Firebox Liner Kits

Cat. No. Model Description

H8572 BLKBP-

MPDP35

H8573 BLKBP-

MPDP40 H0913 MBLK-35 Brickaded, MPDP35 H0914 MBLK-40 Brickaded, MPDP40

Black Porcelain, MPDP35

Black Porcelain, MPDP40

OPTIONAL ACCESSORIES

Termination Shroud

(Fits H1968)

Deluxe Termination

Guard (Fits 94L10)

Termination Guard Kits

The vent termination guards may be used to cover the vent termination on the exterior of the home to minimize exposure to the hot surface of the termination.

Termination Guard Kits (all models)

Cat. No. Model No. Description

H5820 4.5HTSK Termination Shroud

87L02 SV4.5HGS Termination Guard,

Repair of minor scratches and discoloration of the appliance painted surfaces may be accomplished with the touch-up paint kit.

Deluxe

These barrier screen kits create a barrier to prevent direct contact with the hot glass. The screen panel afﬁxes directly to the front glass enclosure panel.

Barrier Screen Kits

Cat. No. Model Description

H7975 HG35M Barrier Screen, MPDP35 H7976 HG40M Barrier Screen, MPDP40

Bag of Glowing Embers Bag of Volcanic Stone

Replacement ember materials or volcanic stone are available for use with these appliances. Order kits as part of the periodic maintenance of the appliance.

Decorative Firebox Accessories

Cat. No. Model

No.

88L53 FGE Bag of Glowing Embers

80L42 FDVS

Description

(1 oz. rockwool) Bag of Decorative

Volcanic Stone

Touch-Up Paint (Black) Kit

Cat. No. Model Description

90L73 TPK-B Touch-Up Paint, Black

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Page 20

LENNOX HEARTH PRODUCTS • MERIT PLUS® DIRECT VENT GAS FIREPLACES (MPDP35/40) • CARE AND OPERATION INSTRUCTIONS

ACCESSORY COMPONENTS (continued)

Arch Design

Arch Pane Design

Square Pane Design

Style View Doors -

Style View Doors come in three beautiful styles. They are easy to install and will not require hardware to attach them to the standard glass door frame. The door includes heavy duty magnet door latches and functional twin-pane doors.

ARCH DESIGN KITS

Cat. No. Model Description Model Series

H8769 AD35B-2 35” Arch Doors, Black

H8770 AD35SP-2 35” Arch Doors, Satin Pewter

H8771 AD40B-2 40” Arch Doors, Black

H8772 AD40SP-2 40” Arch Doors, Satin Pewter

ARCH PANE DESIGN KITS

H8775 APD35B-2 35” Arch Pane Doors, Black

H8776 APD35SP-2 35” Arch Pane Doors, Satin Pewter

H8777 APD40B-2 40” Arch Pane Doors, Black

H8778 APD40SP-2 40” Arch Pane Doors, Satin Pewter

MPDP35

MPDP40

MPDP35

MPDP40

H8781 SPB35B-2 35” Sq. Pane Doors, Black

H8782 SPB35SP-2 35” Sq. Pane Doors, Satin Pewter

H8783 SPB40B-2 40” Sq. Pane Doors, Black

H8784 SPB40SP-2 40” Sq. Pane Doors, Satin Pewter

SQUARE PANE DESIGN KITS

MPDP35

MPDP40

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Page 21

LENNOX HEARTH PRODUCTS • MERIT PLUS® DIRECT VENT GAS FIREPLACES (MPDP35/40) • CARE AND OPERATION INSTRUCTIONS

MAINTENANCE SCHEDULE

Turn off gas and electrical power to the ﬁreplace and allow it to cool before cleaning or servicing the appliance.

Annually (Before the onset of the Burning Season)

MAINTENANCE TASK ACCOMPLISHING PERSON PROCEDURE

Inspect/Clean Burner, Logs and Controls

Check Flame Patterns and Flame Height Qualiﬁed Service Technician Refer to Figure 13 (MPDP35) or 14 (MPDP40) on Page 16 and verify

Inspect/Clean Pilot and Burner Qualiﬁed Service Technician Refer to Figure 16 on Page 17. Remove any surface build-up on pilot

Check Vent System Qualiﬁed Service Technician Inspect the vent system at the top and at the base (within the ﬁrebox) for

Appliance Checkout Qualiﬁed Service Technician Perform the appropriate appliance checkout procedure detailed in this

Replace Glowing Embers Homeowner/Qualiﬁed Service

Periodically (After the Burning Season)

Qualiﬁed Service Technician Inspect valve and ensure it is properly operating. Check piping for

leaks. Vacuum the control compartment, ﬁreplace logs and burner area.

the ﬂame pattern and height displayed by the appliance conforms to the picture. Flames must not impinge on the logs. Ensure ﬂames are steady (not lifting or ﬂoating).

and burner assembly. Wipe the pilot nozzles, igniter/ﬂame rod and hood. Ensure the pilot ﬂame engulfs the ﬂame sensor as shown.

signs of blockage or obstruction. Look for any signs of dislocation or

deterioration of the vent components (reconnect or replace as necessary).

manual.

Remove old glowing ember materials and vacuum the ember placement

Technician

area. Place new embers per instructions on Page 13.

MAINTENANCE TASK ACCOMPLISHING PERSON PROCEDURE

Clean Firebox Interior Homeowner Carefully remove logs, glowing embers and volcanic stone. Vacuum

out interior of the ﬁrebox. Clean ﬁrebox walls and log grate. Replace logs, glowing embers and volcanic stone as detailed in this manual.

Check Flame Patterns and Flame Height Homeowner Refer to Figure 13 (MPDP35) or 14 (MPDP40) on Page 16 and verify

the ﬂame pattern and height displayed by the appliance conforms to the picture. Flames must not impinge on the logs.

Check Vent System Homeowner Inspect the vent system at the top and at the base (within the ﬁrebox)

for signs of blockage or obstruction. Look for any signs of dislocation of the vent components (reconnect or replace as necessary).

Clean Front Glass Enclosure Panel Homeowner Clean as necessary following the directions provided in this manual (see

Page 11). DO NOT TOUCH OR ATTEMPT TO CLEAN GLASS WHILE HOT.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Page 22

LENNOX HEARTH PRODUCTS • MERIT PLUS® DIRECT VENT GAS FIREPLACES (MPDP35/40) • CARE AND OPERATION INSTRUCTIONS

LIGHTING INSTRUCTIONS

FOR YOUR SAFETY READ BEFORE OPERATING

WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life.

A. This appliance is equipped with an ignition device which

• Immediately call your gas supplier from a neighbor’s phone.

automatically lights the pilot. Do not try to light the pilot by hand.

B. BEFORE OPERATING smell all around the appliance area for

• If you cannot reach your gas supplier, call the fire department. C. If any portion of this appliance does not operate as the

gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.

WHAT TO DO IF YOU SMELL GAS:

• Do not try to light any appliance.

D. Do not use this appliance if any part has been under water.

• Do not touch any electric switch; do not use any phone in your building.

OPERATING INSTRUCTIONS

1. STOP! Read the safety information above on this label.

2. Read the Care and Operation manual including the section

on "Remote Control System."

3. Slide the switch on the receiver to "OFF."

4. Press ON/OFF button on remote control transmitter to "OFF."

5. Turn "OFF" all electric power to the appliance.

6. This appliance is equipped with an ignition device which

automatically lights the pilot. Do not try to light the pilot by hand.

7. Wait five (5) minutes to clear out any gas. If you then smell

gas, STOP! Follow “B” in the safety information above on this page. If you do not smell gas, go to the next step.

8. Turn on all electric power to the appliance.

9. Slide the switch on the receiver to REMOTE.

10. Press ON/OFF button on remote control transmitter to "ON."

11.

Set thermostat on remote control to desired setting.

12. If the appliance will not operate, follow the instructions "To

Turn Off Gas To Appliance" and call your service technician or gas supplier.

Follow the gas supplier’s instructions.

instructions indicate, do not try to repair it, call a qualified service technician. Do not use tools. Force or attempted repair may result in a fire or explosion.

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.

Electronic Gas Control

Valve - SIT Proﬂame

Receiver

Remote

Off

PRG

Electronic Pilot Assembly

Remote Control Transmitter

ON/OFF Key

THERMOSTAT Key

TO TURN OFF GAS TO APPLIANCE

1. Slide the switch on the receiver to "OFF."

2. Press ON/OFF button on remote control transmitter to "OFF."

WARNING

HOT GLASS WILL CAUSE BURNS.

DO NOT TOUCH GLASS UNTIL COOLED.

NEVER ALLOW CHILDREN TO TOUCH GLASS.

P/N 580095-01

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

3. Turn off all electric power to the appliance if service is to be performed.

4. Close the main line gas shut-off valve.

Page 23

LENNOX HEARTH PRODUCTS • MERIT PLUS® DIRECT VENT GAS FIREPLACES (MPDP35/40) • CARE AND OPERATION INSTRUCTIONS

INSTRUCTIONS D’ALLUMAGE

POUR PLUS DE SÉCURITÉ LIRE AVANT DE METTRE EN MARCHE

AVERTISSEMENT. Quiconque ne respecte pas à la lettre les instructions dans la présente notice risque de déclencher un incendie ou une explosion entraînant des dommages, des blessures ou la mort.

A. Cet appareil est muni d’un dispositif d’allumage qui allume

• Appelez immédiatement votre fournisseur de gaz depuis un

automatiquement la veilleuse. Ne tentez pas d’allumer la veilleuse manuellement.

• Si vous ne pouvez rejoindre le fournisseur, appelez le service

B. AVANT DE FAIRE FONCTIONNER, reniflez tout autour de

l’appareil pour déceler une odeur de gaz. Reniflez près

C. Si un élément de cette unité ne fonctionne pas tel que décrit

du plancher, car certains gaz sont plus lourds que l’air et peuvent s’accumuler au niveau du sol.

QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ :

• Ne pas tenter d’allumer d’appareil.

• Ne touchez à aucun interrupteur; ne pas vous servir des

D. N’utilisez pas cet appareil s’il a été plongé dans l’eau, même

téléphones se trouvant dans le bâtiment.

INSTRUCTIONS DE MISE EN MARCHE

1. ARRÊTEZ ! Lisez les avertissements de sécurité à l’endos de cette étiquette.

2. Lisez le manuel d’utilisation et d’entretien incluant la section

« Système de télécommande ».

3. Placez l’interrupteur du récepteur en position “OFF”.

4. Appuyez sur le bouton “ON/OFF” pour sélectionner “OFF”.

5. Coupez l’alimentation électrique de l’appareil.

6. Cet appareil est muni d’un dispositif d’allumage qui allume automatiquement la veilleuse. Ne tentez pas d’allumer la veilleuse manuellement.

7. Attendre cinq (5) minutes** pour laisser échapper tout le gaz. Reniflez tout autour de l’appareil, y compris près du plancher, pour déceler une odeur de gaz. Si vous sentez une odeur de gaz, ARRÊTEZ ! Passez à l’étape B des instructions de sécurité sur la portion supérieure (à gauche) de cette étiquette. S’il n’y a pas d’odeur de gaz, passez à l’étape suivante.

8. Mettez l’appareil sous tension.

9. Placez l’interrupteur du récepteur en position “REMOTE”.

10. Appuyez sur le bouton “ON/OFF” pour sélectionner “ON”.

11. Ajustez le thermostat sur la télécommande à l’ajustement désiré.

12. Si l’appareil ne se met pas en marche, suivez les instructions intitulées « Comment couper l’admission de gaz de l’appareil » et appelez un technicien qualifié ou le fournisseur de gaz.

voisin. Suivez les instructions du fournisseur.

des incendies.

dans les instructions, n’essayez pas de le réparer, appelez un technicien qualifié. N’utilisez-pas d’outils. Le fait de forcer la manette ou de la réparer peut déclencher une explosion ou un incendie.

partiellement. Faites inspecter l’appareil par un technicien qualifié et remplacez toute partie du système de contrôle et toute commande qui ont été plongés dans l’eau.

Valve électronique -

SIT Proﬂame

Récepteur

Remote

Off

PRG

Module de veilleuse

électronique

Télécommande

Bouton ON/OFF

Bouton THERMOSTAT

COMMENT COUPER L’ADMISSION DE GAZ DE L’APPAREIL

1. Coupez l’alimentation électrique de l’appareil s’il faut procéder à l’entretien.

2. Sélectionnez OFF sur le récepteur.

AVERTISSEMENT

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.

P/N 580096-01

REMARQUE : LES SCHÉMAS ET LES ILLUSTRATIONS NE SONT PAS À L’ÉCHELLE

3. Appuyez sur le bouton ON/OFF et sélectionnez OFF.

4. Fermer la valve de gaz principale.

Page 24

LENNOX HEARTH PRODUCTS • MERIT PLUS® DIRECT VENT GAS FIREPLACES (MPDP35/40) • CARE AND OPERATION INSTRUCTIONS

TROUBLESHOOTING GUIDE

Note: Before troubleshooting, be sure that the appliance main line gas shut-off valve and the wall switch are in the “ON” position. The following troubleshoots the ﬁreplace only to an elementary level. For detailed Remote and Ignition System troubleshooting, refer to the instructions provided with the remote.

Important: Detailed valve system troubleshooting should only be accomplished by a qualiﬁed service technician.

SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION

1. Nothing happens when the ﬁreplace is

turned On/Off.

2. The main burner does not light and the

igniter is sparking.

3. The main Burner comes on but then goes

out.

4. Soot is present on the logs and glass. A. Excessive ﬂame impingement on the logs. Check for proper log placement.

A. Remote is not functioning properly.

B. Gas is not reaching the ﬁreplace. Check the gas supply and gas shutoff valves. C. Unit is not receiving power.

A. Gas is not reaching the ﬁreplace. Check the gas supply and gas shutoff valves. B. Loose wires to the valve. Check control compartment for any obvious

C. Loose wires to ignition module. Check control compartment for any obvious

D. Air in the gas line. Purge gas line of air (call a service technician

A. Gas is not reaching the ﬁreplace. Check the gas supply and gas shutoff valves. B. Loose wires to the valve or ignition mod-

ule.

C. Pilot ﬂame is not engulﬁng the sensor. Call for a service technician. D. Obstructed vent system. Call for a service technician.

B. Improper air shutter opening. Open the air shutter by pulling on the air shutter

Check that the wall switch plate is set to remote

• (if remote was used).

•

Operate the ﬁreplace from the wall plate switch.

•

Replace remote and/or receiver batteries.

Check/replace back-up batteries behind the

• wall plate.

•

Check building circuit breakers to ensure power

is on to the ﬁreplace.

loose wiring (call a service technician if required).

if required).

Check control compartment for any obvious loose wiring (call a service technician if required).

adjustment lever.

Page 25

LENNOX HEARTH PRODUCTS • MERIT PLUS® DIRECT VENT GAS FIREPLACES (MPDP35/40) • CARE AND OPERATION INSTRUCTIONS

REPLACEMENT PARTS LIST

Item No. Description

1 Hood 97K51 1 97K52 1 2 Radiant Panel Assembly, Upper H8661 1 H8662 1 3 Radiant Panel Assembly, Lower H8665 1 H8666 1 4 Enclosure, Glass Front (Complete) H8584 1 H8586 1

5 Nameplate (Brand) 12L15 1 12L15 1 6 Door Latch Spring H1264 2 H1264 2 7 Catch, Door, Magnetic 69L31 2 69L31 2 8 Log Set (Complete) 24M22 1 24M25 1

9 Burner Assembly H8585 1 H8587 1 10 Grate Assembly H6526 1 H6314 1 11 Oriﬁce, Main Burner - Nat. Gas H3721 1 18L40 1 11 Oriﬁce, Main Burner - LP Gas 99K79 1 21L01 1 12 Bag Of Embers (Rockwool) 88L53 1 88L53 1 13 Bag Of Decorative Volcanic Stone 80L42 1 80L42 1 14 Gas Line Flexible Connector 93L32 1 93L32 1 15 CPI Switch (pilot mode) 27K30 1 27K30 1 16 Forced Air Blower, FBK-100 80L84 1 80L84 1

MPDP35 MPDP40

Part No. Qty. Part No. Qty.

GAS CONTROLS — SIT ELECTRONIC

Item No. Description

17 Gas Valve H7270 1 H7271 1 18 Pilot Assembly H7268 1 H7269 1 19 DFC Ignition Board H7272 1 H7272 1 20 DFC Wire Harness H7273 1 H7273 1 21 Receiver Kit H7277 1 H7277 1 22 Receiver Cable Harness H7276 1 H7276 1 23 Fan Control Module H7274 1 H7274 1 24 Transmitter Kit H7275 1 H7275 1 25 Ground Wire H7278 1 H7278 1

Natural Gas Propane Gas

Part No Qty Part No Qty

Contact an Lennox Hearth Products dealer to obtain any of these parts. Never use substitute materials. Use of non-approved parts can result in poor performance and safety hazards.

WARNING

Failure to position the parts in accordance with these diagrams or failure to use only parts speciﬁcally approved with this appliance may result in property damage or personal injury.

AVERTISSEMENT

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 approuvées avec cet appareil sont utilisées.

Page 26

LENNOX HEARTH PRODUCTS • MERIT PLUS® DIRECT VENT GAS FIREPLACES (MPDP35/40) • CARE AND OPERATION INSTRUCTIONS

(FBK-200 Models Only)

REPLACEMENT PARTS

MPDP35

MPDP40

MPDP35

MPDP40

Remote

Off

PRG

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Page 27

NOTES

LENNOX HEARTH PRODUCTS • MERIT PLUS® DIRECT VENT GAS FIREPLACES (MPDP35/40) • CARE AND OPERATION INSTRUCTIONS

Page 28

LENNOX HEARTH PRODUCTS • MERIT PLUS® DIRECT VENT GAS FIREPLACES (MPDP35/40) • CARE AND OPERATION INSTRUCTIONS

Lennox Hearth Products reserves the right to make changes at any time, without notice, in design, materials, speciﬁcations, and prices, and also to discontinue colors, styles, and products. Consult your local distributor for ﬁreplace code information.

LENNOX®, the LENNOX design, DAVE LENNOX, the image of DAVE LENNOX and other related LENNOX marks are registered or common law trademarks of Lennox Industries Inc. and are used with permission.

P/N 506017-05 Rev. NC 06/2012

1508 Elm Hill Pike, Suite 108 • Nashville, TN 37210