Lennox Merit Series MLDVTCD-35NE Installation Instructions Manual

Direct-vent contemporary design gas fireplaces merit series
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P/N 506015-03 Rev. F 06/2011
This manual is part of a set of three supporting this product.
Refer to manual 506017-02 for Care and Operation information
and 506019-40 for Facade Installation Instructions.
Ce manuel est disponible en francais, simplement
en faire la demande. Numéro de la pièce 506223-05.
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.
This appliance may be installed in an aftermarket permanently located, manufactured home (USA only) or mobile
home, where not prohibited by local codes. This appliance is only for use with the type of gas indicated on the rating
plate. This appliance is not convertible for use with other gases unless a certified kit is used.
WARNING / 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
MLDVTCD Direct-Vent
Contemporary Design
Gas Fireplaces
MODELS
MILLIVOLT:
MLDVTCD-35NM
Report No. 100353019PRT-002
• 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.
ELECTRONIC:
MLDVTCD-35NE
• EL VIDRIO CALIENTE
CAUSARÁ QUEMADURAS.
• USTED DEBE NUNCA
TOCAR EL VIDRIO CALIENTE.
• LOS NIÑOS DEBEN NUNCA
TOCAR EL VIDRIO.

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Summary of Contents for Lennox Merit Series MLDVTCD-35NE

  • Page 1 INSTALLATION INSTRUC TIONS MLDVTCD Direct-Vent ™ Contemporary Design Gas Fireplaces P/N 506015-03 Rev. F 06/2011 MODELS This manual is part of a set of three supporting this product. MILLIVOLT: ELECTRONIC: Refer to manual 506017-02 for Care and Operation information and 506019-40 for Facade Installation Instructions. MLDVTCD-35NM MLDVTCD-35NE Ce manuel est disponible en francais, simplement...
  • Page 2: Table Of Contents

    LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® TABLE OF CONTENTS PACKAGING GENERAL INFORMATION The assembled vented gas fireplace is pack- Packaging .........Page 2 WARNING aged with: Introduction ........Page 2 General Information ......Page 2...
  • Page 3 LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® Note: Installation and repair should be done The appliance, when installed, must be electri- WARNING cally grounded and wired in accordance with by a qualified service person.
  • Page 4: Requirements For The Commonwealth Of Massachusetts

    LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® Gas Pressure - All Models Orifice Sizes - Sea Level to High Altitude (All Models) Tables 2 and 3 show the appliances' gas...
  • Page 5: Cold Climate Insulation

    LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® COLD CLIMATE INSULATION For cold climate installations, seal all cracks Note: When the unit is installed with one around your appliance with noncombustible...
  • Page 6: Vent Termination Clearances

    LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® VENT TERMINATION CLEARANCES Vertical Vent Termination Clearances Termination Heights For Vents These instructions should be used as a Above Flat Or Sloped Roofs...
  • Page 7 LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® ExTERIOR HORIZONTAL VENT TERMINATION CLEARANCE REQUIREMENTS NOTE: Local Codes Or Regulations May Require Different Clearances. See Item D in the Text Below.
  • Page 8: Appliance And Vent Clearances

    LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® MINIMUM CLEARANCES TO COMBUSTIBLES Combustible Shelf Height - Inches (millimeters) Appliance And Vent Clearances Model No. Top Vent - with One 90 Degree Elbow...
  • Page 9: Detailed Installation Steps

    LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® TYPICAL INSTALLATION SEQUENCE Step 1. FRAMING WARNING The typical sequence of installation is outlined Frame these appliances as illustrated in Figures Failure to position the parts in 11 and 12 on Pages 10 and 11 (Figure 12 below.
  • Page 10: Fireplace And Framing Specifications

    LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® FIREPLACE AND FRAMING SPECIFICATIONS Framing Framing should be constructed Inches (mm) of 2x4 or larger lumber 10-1/2 VENT FRAMING - Framing Dimensions TOP VENT WITH ONE Model No.
  • Page 11: Step 2. Routing Gas Line

    LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® FIREPLACE FRAMING SPECIFICATIONS 35 1/4 57 1/2 28 3/4 13 3/4 40 5/8 MLDVTCD-35 1461 1032 7 (178) Back wall of chase/enclosure...
  • Page 12: Step 3. Install The Venting System

    LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® Step 3. INSTALL THE VENT SYSTEM Installation of Vent Restrictor Vent Restrictor Installation (Top Vent) A vent restrictor may be needed with this General Information appliance.
  • Page 13: Vertical Termination Systems

    LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® VERTICAL TERMINATION SYSTEMS (ROOF) i t c See Figure 15 on Page 13 and Figures 23- i t c 25 on Pages 16 and 17 and their associated...
  • Page 14 LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® Push the vent component against the previous B. Attach vent components to appliance Vertical (Offset) Installation section until it fully engages, then twist the - Secure Vent SV4.5 direct-vent system compo-...
  • Page 15 LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® K. Install the vertical termination - The final One method of support is by utilizing field pro- vided support straps (conventional plumber's step involves installation of the SV4.5CGV-1...
  • Page 16: Vertical Vent Tables And Figures

    LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® VERTICAL VENT FIGURES/TABLES Table A Notes: H Maximum V Minimum • Secure Vent™ (rigid vent pipe) is shown in the Figures; Secure Flex™ (flexible vent...
  • Page 17: Horizontal Termination System

    LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® VERTICAL VENT FIGURES/TABLES (CONTINUED) Example: If 20 feet total (H+H Table B horizontal vent run is needed, then V Minimum Maximum 4 feet minimum of (V) vertical vent Ceiling will be required.
  • Page 18 LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® Building Support TYPICAL HORIZONTAL VENT INSTALLATION Support Brackets Horizontal / Inclined Run Framing Typical Termination SV4.5E90 Shown Elbow SV4.5L6/12/24/36/48 Exterior Vent Sections...
  • Page 19 LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® J. Assemble vent run to exterior wall - If not Firestop/Spacer (SV4.5HF) shown Typical previously measured, locate the center of the Termination on the exterior side of the wall.
  • Page 20: Horizontal Vent Tables And Figures

    LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® Use Table 8 as an aid in venting component selection for a particular range of exterior wall thicknesses. Table C H Maximum...
  • Page 21 LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® HORIZONTAL VENT FIGURES / TABLES (CONTINUED) Wall Firestop/Spacer Table E (SV4.5HF) V Minimum Maximum feet (meter) feet (meter) (0.914) Elbow Only (1.524) (0.305)
  • Page 22 LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® HORIZONTAL VENT FIGURES / TABLES (CONTINUED) Table F Typical termination shown. V Minimum Maximum When using Secure Flex, use Firestop/Spacer feet (meter)
  • Page 23: Venting Using Flexible Vent Pipe

    LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® VERTICAL OR HORIZONTAL VENTING USING Flex Vent SECuRE FLEX™ KITS AND COMPONENTS NOTE: Outer pipe is pulled away to show the detail of the inner pipe.
  • Page 24: Step 4. Field Wiring

    LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® Step 4. FIELD WIRING Refer to Section A for millivolt appliances and 3. Remove the cover plate's knockout and then feed the power supply wire through the Section B for electronic appliances.
  • Page 25: Step 5. Optional Blower Kit Wiring

    LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® BLOWER CONTROL CIRCUIT WIRING Note: No batteries to be installed in the battery Step 5. WIRING - OPTIONAL FORCED AIR 120V, 60HZ, 1PH...
  • Page 26: Step 6. Connecting Gas Line

    LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® Step 6. CONNECTING GAS LINE GAS CONNECTION Gas Flex Line Connector All codes require a shut-off valve mounted 3/8" NPT x 1/2" x 3/8" Flare in the supply line.
  • Page 27: Step 7. Verifying Appliance Operation

    LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® Step 7. VERIFYING APPLIANCE TEST ALL CONNECTIONS FOR GAS LEAKS The flame should project 1" (25 mm) beyond (FACTORY AND FIELD): the hood at all three ports (see Figure 41).
  • Page 28: Step 8. Installing Contemporary Media

    LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® Step 8. INSTALLING CONTEMPORARY Install Tumbled River Stone (MTRS) - Table Of Contemporary Media MEDIA Cat. Model Contemporary Media IMPORTANT: Refractory panels should be...
  • Page 29 LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® MLDVTCD-35 REFRACTORY PANELS AND CONTEMPORARY MEDIA PLACEMENT Rear Zen Garden Panel Tumbled River Stone Burner Outlet (Note: River Stone And Beach Sand May Be Used Together)
  • Page 30: Step 9. Installing Glass Door

    LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® Step 9. INSTALLATION AND REMOVAL Step 10. BURNER ADJUSTMENTS 3. Pull the bottom of the door out a few inches OF GLASS DOOR and grasp it on the right and left.
  • Page 31 LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® Burner Air Shutter Adjustment Procedure Adjustment Set-Screw Main Burner Factory Air Shutter WARNINGS Opening Setting - Inches (millimeter) Adjustment Rod Up (closed min. position)
  • Page 32: Step 11. Hood Installation

    LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® Step 11. HOOD INSTALLATION FINISHING REQUIREMENTS - Contemporary Facade This contemporary unit is uniquely suited for mid-wall installations with an (Refer to Figure 47) All of these appliances must have hoods installed available self-finishing decorative contemporary Facade.
  • Page 33: Step 12. Attaching Safety-In-Operation Warnings

    3. Si no puede encontrar las etiquetas, sírvase llamar Lennox Hearth Products or your nearest Lennox ment parlée dans la résidence du propriétaire. a Lennox Hearth Products o al distribuidor de Hearth Products dealer to receive additional 3. Si vous ne trouvez pas les étiquettes, veuillez Lennox Hearth Products más cercano para recibir...
  • Page 34: Installation Accessories

    LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® INSTALLATION ACCESSORIES t s i ™ t s i ™ z i r l a t i t a h t i...
  • Page 35 ™ LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® N . o N . o N . o N . o , t i INSTALLATION ACCESSORIES CONTINUED...
  • Page 36: Gas Conversion Kits

    LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® GAS CONVERSION KITS INSTALLATION INSTRUCTIONS WARNING Step 1. TURN OFF THE GAS SUPPLY TO THE APPLIANCE, and disconnect power supply at This conversion kit shall be installed by a qualified service agency in accor- the circuit breaker.
  • Page 37 LENNOX HEARTH PRODUCTS • MERIT SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • INSTALLATION INSTRUCTIONS ® Millivolt Appliances Electronic Appliances All Models Step 7. Dexen Electronic Valves - See Figure Step 8. (Refer to Figure 49 on Page 36 and Step 5.
  • Page 38 SERIES DIRECT-VENT CONTEMPORARY DESIGN GAS FIREPLACES • MODEL MLDVTCD-35 • 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.

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