Lennox LSM40ST-N Installation Instructions Manual

Lennox LSM40ST-N Installation Instructions Manual

Montebello see-through direct-vent gas fireplaces

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P/N 506023-12 Rev. B 05/2011
This manual is one of a set of two supporting this product.
Refer to P/N 506025-05 for Care and Operation Instructions.
Ce manuel est disponible en francais, simplement
en faire la demande. Numéro de la pièce 506223-11.
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
Montebello See-Through
Direct-Vent Gas Fireplaces
MODELS
Intertek Report No.
100326523PRT-001
• 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.
LSM40ST-N
LSM40ST-P
Look for the EnerGuide
Gas Fireplace Energy
Efficiency Rating in this manual.
Based on CSA P .4.1-02
• EL VIDRIO CALIENTE
CAUSARÁ QUEMADURAS.
• USTED DEBE NUNCA
TOCAR EL VIDRIO CALIENTE.
• LOS NIÑOS DEBEN NUNCA
TOCAR EL VIDRIO.
TM

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Summary of Contents for Lennox LSM40ST-N

  • Page 1 INSTALLATION INSTRUC TIONS Montebello See-Through Direct-Vent Gas Fireplaces MODELS LSM40ST-N P/N 506023-12 Rev. B 05/2011 This manual is one of a set of two supporting this product. LSM40ST-P Refer to P/N 506025-05 for Care and Operation Instructions. Ce manuel est disponible en francais, simplement en faire la demande.
  • Page 2: Table Of Contents

    LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® TABLE OF CONTENTS PACKAGING GENERAL INFORMATION Packaging ........... 2 The assembled vented gas fireplace is pack- aged with the following items: WARNING Introduction ..........2 Approved Vent Components ....
  • Page 3: Misc. Codes/Standards

    LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® Provide adequate clearances around air open- Note: Installation and repair should be done WARNING ings and adequate accessibility clearance for by a qualified service person. The appliance service and proper operation.
  • Page 4: Gas Valve Diagram

    LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® Gas Supply Pressure Requirements Orifice Sizes Requirements for the Commonwealth of Massachusetts Sea Level To high Altitude (All Models) (continued) These appliances are tested and approved...
  • Page 5: Cold Climate Insulation

    LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® COLD CLIMATE INSULATION For cold climate installations, seal all cracks Outdoors around the appliance with noncombustible material and wherever cold air could enter the Indoors room.
  • Page 6: Vent Termination Clearances

    LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® VENT TERMINATION TERMINATION HEIGHTS FOR VENTS ABOVE Vent/air intake termination clearances FLAT OR SLOPED ROOFS CLEARANCES above the high side of an angled roof Horizontal Overhang are listed in the table below.
  • Page 7 LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® EXTERIOR hORIZONTAL VENT TERMINATION CLEARANCE REQUIREMENTS NOTE: Exterior Wall • Local codes or regulations may require different clearances. • Location of vent termination must NOT = Vent terminal 36"...
  • Page 8: Hearth Extensions (Optional)

    LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® hEARTh EXTENSIONS (OPTIONAL) Optional Outdoor hearth Extension Note: Hearth extensions are not required with this appliance. All outdoor hearth material (combustible and non-combustible) must be installed a minimum of 6"...
  • Page 9: Minimum Clearances To Combustibles

    LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® MINIMUM CLEARANCES TO COMBUSTIBLES Do NOT insulate space between Appliance and Vent Clearances appliance and area above it. The appliance is approved with zero clearance to combustible materials...
  • Page 10: Pre-Installation Steps

    LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® PRE-INSTALLATION STEPS TYPICAL INSTALLATION DETAILED INSTALLATION STEPS SEQUENCE The appliance is shipped with all gas controls Step 1. FRAMING and components installed and pre-wired.
  • Page 11: Framing Specifications

    LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® FRAMING SPECIFICATIONS Framing should be constructions of 2x4 or larger lumber. LSM40ST    52-1/16 47-5/16 75-1/2 26-5/16 (mm) (1322) (1202) (1918) (668) (152) ...
  • Page 12: Fireplace Dimensions

    LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® FIREPLACE DIMENSIONS (shown with Outdoor Kit installed) FIREPLACE COLLAR AND VENT SIZE Fireplace Vent Collar and Vent Pipe (Coaxial DV) 8" Inner / 11" Outer NOTE: All venting/termination systems (vertical and horizontal) require installation of the provided Vent Restrictor.
  • Page 13: Step 2. Route Gas Line

    LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® Step 2. ROUTE GAS LINE Proper Sizing of Gas Line Notes: • All appliances are factory-equipped with Properly size and route the gas supply line...
  • Page 14: Step 3. Install Vent System

    LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® Step 3. INSTALL VENT SYSTEM The vent system may not service multiple ap- Note: When possible, install the vent pliances and must never be connected to a flue restrictor through the top of the appliance serving a solid fuel burning appliance.
  • Page 15: Vertical (Roof) Termination

    LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® Vertical (Roof) Termination Systems This section includes configurations for vertical (roof) termination systems with either straight vertical venting (see below and Page 18) and offset vertical venting (see Pages 16–18).
  • Page 16: Vertical Venting

    LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® Vertical Termination System B. Attach vent components to appliance. D. Install firestop/spacer at ceiling. with Offset Vertical Venting Secure Vent™ SV8 direct-vent system compo-...
  • Page 17 LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® Vertical Termination System h. Frame roof opening. K. Install vertical termination. with Offset Vertical Venting (continued) The final step involves installation of the verti- Identify location for vent at the roof.
  • Page 18: Vertical Termination System Figures And Tables

    LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® VERTICAL TERMINATION SYSTEM Vertical Termination System with Offset Vertical Venting using Two 90-Degree Elbows FIGURES AND TABLES Secure Vent™ rigid vent pipe and termination components are shown in the figures.
  • Page 19: Horizontal (Wall) Termination

    LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® horizontal (Wall) Termination horizontal Termination System with horizontal/Inclined Run Systems Support Building This section includes configurations for hori- horizontal / Inclined Run Brackets Support...
  • Page 20 LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® It is important to maintain the required clear- ances to combustibles: 1" (25 mm) at all sides Firestop/Spacer (SV8HF4) Square for all vertical runs; and 4" (102 mm) at the...
  • Page 21: Horizontal Termination System Figures And Tables

    LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® See Table 8 as an aid in venting component selection for a particular hORIZONTAL TERMINATION SYSTEM FIGURES/TABLES range of exterior wall thicknesses. Note: • Secure Vent™ rigid vent pipe and termination components are shown Required Venting Components (based on Exterior Wall Thickness) in the figures.
  • Page 22 LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® hORIZONTAL VENT FIGURES/TABLES (continued) hORIZONTAL TERMINATION SYSTEM WITh hORIZONTAL/INCLINED RUN USING TWO 90-DEGREE ELBOWS (Elbow connection not directly at appliance) Note: The provided vent restrictor is required in all venting systems.
  • Page 23: Step 4. Field Wiring

    LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® Step 4. FIELD WIRING Electronic Wiring power supply wire to the common terminal of the outlet as shown in Figures 34 and 35. (See Figures 34 and 35) 5.
  • Page 24: Step 6. Connecting Gas Line

    LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® Step 6. CONNECT GAS LINE Test All Connections for Gas Leaks (Factory and Field) Right Side All codes require a shut-off valve mounted in the Modesty Panel supply line.
  • Page 25: Step 7. Install Firebox Liner Panels

    LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® Step 7. INSTALL FIREBOX Step 8. VERIFY APPLIANCE Appliance Checkout LINER PANELS OPERATION To light the burner, refer to the lighting in- structions in the Care and Operation Instruc-...
  • Page 26: Step 9. Install Volcanic Stone, Glowing Embers, And Logs

    LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® Step 9. INSTALL VOLCANIC STONE, Bag of Glowing Embers GLOWING EMBERS, AND LOGS 9-1. Remove mesh pull screens, modesty panel, and glass door as- sembly from one side of fireplace.
  • Page 27 LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® 9-5. Install logs (reference Figure 42 and Table 9 ). 9-6. Place rectangular notches on underside of Center Log A (Figure 44) over Boss #1 and Boss #4 (Figure 43 ).
  • Page 28 LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® 9-9. Place groove on underside of Top Right Log D over the grate as 9-11. See Figure 49. Place groove on underside of Top Front Log F over shown in Figure 47.
  • Page 29: Step 10. Install Glass Doors, Mesh Pull Screens, And Modesty Panel

    LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® Step 10. INSTALL GLASS Installing Glass Doors, Mesh Pull Removing Glass Doors, Mesh Pull Screens, and Modesty Panel Screens, and Modesty Panel DOORS, MESh PULL SCREENS,...
  • Page 30 LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® Step 11. BURNER ADJUSTMENTS Burner Air Shutter Adjustment 1. Light the appliance (follow lighting proce- dure in Care and Operation Instructions or Procedure on lighting label in control compartment).
  • Page 31: Finishing Requirements

    LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® FINIShING REQUIREMENTS Wall Details - INDOOR SIDE(S) Wall Details - OUTDOOR SIDE IMPORTANT! Complete the finished interior wall. To install the appliance Complete finished exterior wall per the instructions provided Min.
  • Page 32 LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® Overhang Combustible Sheathing Non-Combustible Board Siding Siding Siding Trim Combustible Sheathing Exterior Minimum Clearances Material Sheathing Requirements Vinyl 12” (305 mm) 35-1/2” (902 mm) 6”...
  • Page 33: Step 12. Attaching Safety-In-Operation Warnings

    LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® Step 12. ATTAChING SAFETY-IN-OPERATION WARNINGS It is the installer’s responsibility to ensure these warnings are properly affixed during installation. These warning labels are a critical step in informing consumers of safe operation of this appliance.
  • Page 34: Installation Accessories

    LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® INSTALLATION ACCESSORIES Listed Secure Vent™ Components h2262 SV8SU Support Strap Cat. Model Description h8323 SV8hTS4 horizontal Square Termination with Firestop/Spacer h2263 SV8SP Support Plate...
  • Page 35: Gas Conversion Kits

    LENNOX HEARTH PRODUCTS • MONTEBELLO SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS ® GAS CONVERSION KITS Gas Conversion Kits Gas conversion kits are available to adapt your Kit Model No. Kit Cat. No. Description appliance from the use of one type of gas to...
  • Page 36 SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION 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.

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Lsm40st-p

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