Lennox MLBV-35NM Installation Instructions Manual
Lennox MLBV-35NM Installation Instructions Manual

Lennox MLBV-35NM Installation Instructions Manual

B-vent merit series

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P/N 506015-04 Rev. C 01/2012
This manual is one of a set of two supporting this product.
Refer to P/N 506017-03 for Care and Operation Instructions.
Ce manuel est disponible en francais, simplement
en faire la demande. Numéro de la pièce 506223-21.
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.
WARNING / AVERTISSEMENT / AVISO
• HOT GLASS WILL CAUSE
BURNS.
• DO NOT TOUCH GLASS
UNTIL COOLED.
• NEVER ALLOW CHILDREN
TO TOUCH GLASS.
WARNING: If the information in these instructions
is not followed exactly, a fire or explosion may
result, causing property damage, personal injury,
or death.
- 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.
INSTALLATION INSTRUC TIONS
B-Vent Gas Fireplaces
MLBV 35/40 Models
MODELS
MLBV-35NM
MLBV-35PM
ITS Report No. 100017854
Please read and understand these instructions
• 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.
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.
- 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.
MILLIVOLT:
MLBV-40NM
MLBV-40PM
before starting installation.
• EL VIDRIO CALIENTE
CAUSARÁ QUEMADURAS.
• USTED DEBE NUNCA
TOCAR EL VIDRIO CALIENTE.
• LOS NIÑOS DEBEN NUNCA
TOCAR EL VIDRIO.
ELECTRONIC:
MLBV-35NE
MLBV-40NE

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Summary of Contents for Lennox MLBV-35NM

  • Page 1 MODELS P/N 506015-04 Rev. C 01/2012 MILLIVOLT: ELECTRONIC: This manual is one of a set of two supporting this product. MLBV-35NM MLBV-40NM MLBV-35NE Refer to P/N 506017-03 for Care and Operation Instructions. Ce manuel est disponible en francais, simplement MLBV-35PM...
  • Page 2: Table Of Contents

    LENNOX HEARTH PRODUCTS • MERIT SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • INSTALLATION INSTRUCTIONS ® TABLE Of CONTENTS PACKAGING WARNING Packaging .........Page 2 The assembled vented gas fireplace is packaged Young children should be care- with the following items: Introduction ........Page 2...
  • Page 3 LENNOX HEARTH PRODUCTS • MERIT SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • INSTALLATION INSTRUCTIONS ® GENERAL INfORMATION Installation must conform to local codes, or, in the absence of local codes, with the National (continued) Fuel Gas Code, ANSI Z223.1/NFPA 54 (latest...
  • Page 4: Gas Pressure Requirements

    LENNOX HEARTH PRODUCTS • MERIT SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • INSTALLATION INSTRUCTIONS ® ORIfICE SIzES GAS VALVE dIAGRAMS GAS PRESSURE REqUIREMENTS Sea Level to High Altitude (All Models) See Figure 1 for millivolt models and Figure 2 (All Models) for electronic models.
  • Page 5: Cold Climate Insulation

    LENNOX HEARTH PRODUCTS • MERIT SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • INSTALLATION INSTRUCTIONS ® COLd CLIMATE INSULATION LOCATION Combustion air kits are optional and must be installed before removing the securing screw allowing the movement of the combustion air...
  • Page 6: Vent Termination Clearances

    LENNOX HEARTH PRODUCTS • MERIT SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • INSTALLATION INSTRUCTIONS ® VENT TERMINATION Termination Heights for Vents Gas Vent Rule CLEARANCES Above flat Or Sloped Roofs Ref. NfPA 54 / ANSI z223.1 Multiple Terminations...
  • Page 7: Minimum Clearances To Combustibles Appliance And Vent Clearances

    LENNOX HEARTH PRODUCTS • MERIT SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • INSTALLATION INSTRUCTIONS ® MINIMUM CLEARANCES TO COMBUSTIBLES At 14" minimum side At 8-1/4" side Appliance and Vent Clearances wall clearance, a wall clearance, a Top View of...
  • Page 8: Pre-Installation Steps (Remove Glass Enclosure Panel)

    LENNOX HEARTH PRODUCTS • MERIT SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • INSTALLATION INSTRUCTIONS ® PRE-INSTALLATION STEPS Step 5. (Page 14) [OPTIONAL]: Install Header outside supplemental combustion (Remove Glass Enclosure Panel) Spacing Standoff air kit. Spacers* The appliance is shipped with all gas controls Standoffs Step 6.
  • Page 9: Fireplace And Framing Specifications

    LENNOX HEARTH PRODUCTS • MERIT SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • INSTALLATION INSTRUCTIONS ® fIREPLACE ANd fRAMING SPECIfICATIONS fIREPLACE fRAMING dIMENSIONS NOTE: Diagrams, illustrations and Construct framing with 2x4 or larger lumber. photographs are not to scale. Product...
  • Page 10 LENNOX HEARTH PRODUCTS • MERIT SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • INSTALLATION INSTRUCTIONS ® APPLIANCE SPECIfICATIONS Flue Outlet for B-Vent Connection: 35 Models = 4 in. (102 mm) 40 Models = 5 in. (127 mm) 1/2 in.
  • Page 11: Step 2. Route The Gas Line

    LENNOX HEARTH PRODUCTS • MERIT SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • INSTALLATION INSTRUCTIONS ® Step 2. Route the Gas Line Notes: WARNING • All appliances are factory-equipped with Route a 1/2" (13 mm) gas line to either side a flexible gas line connector and 1/2 inch Sharp Edges.
  • Page 12: Step 4. Install Field Wiring

    LENNOX HEARTH PRODUCTS • MERIT SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • INSTALLATION INSTRUCTIONS ® ON/OFF switch, the switch may be mounted onto the Style View Door per instructions provided in kit. • The gas valve is set in place and pre-wired at...
  • Page 13: Wiring Diagrams

    LENNOX HEARTH PRODUCTS • MERIT SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • INSTALLATION INSTRUCTIONS ® J-BOX/RECEPTACLE WIRING MILLIVOLT WIRING dIAGRAM J-BOX / RECEPTACLE WIRING 120V, 60Hz, 1PH 120V, 60HZ, 1PH CAUTION: WHEN SERVICING CONTROLS, LABEL ALL WIRES PRIOR TO dISCONNECTION.
  • Page 14: Step 5. [Optional] Install Outside

    LENNOX HEARTH PRODUCTS • MERIT SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • INSTALLATION INSTRUCTIONS ® Step 5. Install Outside INSTALLATION ACCESSORIES Failure to do so may result in extensive and [OPTIONAL] costly rework. Before the operation of the vent...
  • Page 15: Step 6. Connect The Gas Line

    LENNOX HEARTH PRODUCTS • MERIT SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • INSTALLATION INSTRUCTIONS ® Step 6. Connect the Gas Line Gas Flex Line Connector All codes require a shut-off valve mounted in 3/8" NPT x 1/2" x 3/8" Flare the supply line.
  • Page 16: Step 7. Verify Appliance Operation

    LENNOX HEARTH PRODUCTS • MERIT SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • INSTALLATION INSTRUCTIONS ® Test All Connections for Gas Leaks Millivolt Appliance Checkout Step 7. Verify Appliance (factory and field) Operation The pilot flame should be steady, not lifting or floating.
  • Page 17: Step 8. Install Volcanic Stone, Glowing

    LENNOX HEARTH PRODUCTS • MERIT SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • INSTALLATION INSTRUCTIONS ® Step 8. Install Volcanic Stone, 4. Place the glowing ember material 5. Install the Logs. (rockwool). Glowing Embers (Rockwool), The logs have locating notches or slots to...
  • Page 18: Mlbv-35 Log Placement

    LENNOX HEARTH PRODUCTS • MERIT SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • INSTALLATION INSTRUCTIONS ® MLBV-35 LOG PLACEMENT INSTRUCTIONS Note: Rear Log Left Cross Log Right Cross Log • Ceramic fiber logs are FRAGILE! Handle carefully to prevent breakage.
  • Page 19: Mlbv-40 Log Placement

    LENNOX HEARTH PRODUCTS • MERIT SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • INSTALLATION INSTRUCTIONS ® MLBV-40 LOG PLACEMENT INSTRUCTIONS Note: Rear Log Left Cross Log Right Cross Log • Ceramic fiber logs are FRAGILE! Handle carefully to prevent breakage.
  • Page 20: Step 9. Install The Glass Enslosure

    LENNOX HEARTH PRODUCTS • MERIT SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • INSTALLATION INSTRUCTIONS ® Step 9. Install the Glass Enclosure Step 10. Burner Air Shutter 3. Install the hood. Note the location of the three clips inside the top air channel above...
  • Page 21 LENNOX HEARTH PRODUCTS • MERIT SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • INSTALLATION INSTRUCTIONS ® Burner Air Shutter Adjustment Procedure Adjustment Set-Screw Adjustment WARNING Rod Up (fully Open Burner Position) • Air shutter adjustment should only be performed Tube by a qualified professional service technician.
  • Page 22: Step 11. Perform Spillage Test

    LENNOX HEARTH PRODUCTS • MERIT SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • INSTALLATION INSTRUCTIONS ® Step 11. Perform Spillage Test After appliance installation, perform this spillage Lintel Screw Hole test to verify proper venting conditions: in Cabinet Top...
  • Page 23: Step 12. Install Hood

    LENNOX HEARTH PRODUCTS • MERIT SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • INSTALLATION INSTRUCTIONS ® Step 12. Install Hood NOTE: All models must have a hood installed prior to operating. Combustible finished Wall Materials Refer to Figure 30. Install hood by sliding it into 1 in (25 mm) min.
  • Page 24: Step 14. Attach Safety-In-Operation Warnings

    3. Si no puede encontrar las etiquetas, sírvase llamar a cas de doute, collez l’étiquette en anglais. Lennox Hearth Products o al distribuidor de Lennox 3. If you are unable to locate the labels, please call 3. Si vous ne trouvez pas les étiquettes, veuillez Hearth Products más cercano para recibir etiquetas...
  • Page 25: Gas Conversion Kits

    LENNOX HEARTH PRODUCTS • MERIT SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • INSTALLATION INSTRUCTIONS ® GAS CONVERSION KITS Electronic dEXEN Systems Natural Gas To Propane Gas Conversion Kits WARNING Models Catalog No. MLBV-35 H8268 This conversion kit shall be installed by a qualified service agency in accordance with the manufacturer’s instructions and all applicable codes...
  • Page 26 LENNOX HEARTH PRODUCTS • MERIT SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • INSTALLATION INSTRUCTIONS ® All Models Electronic Appliances Burner Assembly Step 8. dexen Electronic Valves: Refer to Note the following: Figure 34 and the instructions pro- Use pipe joint compound or Teflon tape on vided with the kit.
  • Page 27 LENNOX HEARTH PRODUCTS • MERIT SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • INSTALLATION INSTRUCTIONS ® Notes NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
  • Page 28 SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • INSTALLATION INSTRUCTIONS ® Lennox Hearth Products reserves the right to make changes at any time, without notice, in design, materials, specifications, prices and also to discontinue colors, styles and products. Consult your local distributor for fireplace code information.

This manual is also suitable for:

Mlbv-40nmMlbv-35pmMlbv-40neMlbv-40pmMblv-35ne

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