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INSTALLATION INSTRUCTIONS
®
Montebello
Direct Vent Gas Fireplaces
MODELS
MILLIVOLT: ELECTRONIC:
P/N 850026M Rev. G 06/2011
This manual is one of a set of two supporting this product.
LSM40MN-2 LSM45MN-2 LSM40EN-2
Refer to P/N 875027M for Care and Operation Instructions.
LSM40MP-2 LSM45MP-2 LSM45EN-2
Ce manuel est disponible en francais, simplement
en faire la demande. Numéro de la pièce 850026CF.
Portland
US
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual
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® LENNOX HEARTH PRODUCTS • MONTEBELLO DV GAS FIREPLACES (LSM40/45MN-2, LSM40/45MP-2, LSM40/45EN-2) • INSTALLATION INSTRUCTIONS GENERAL INFORMATION PACKAGING TABLE OF CONTENTS Packaging .........................................Page 2 The assembled vented gas fireplace is pack- aged with: WARNING Introduction ......................................Page 2 General Information ..........................Page 2 Young children should be care- 1 - one envelope located in the firebox contain-
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® LENNOX HEARTH PRODUCTS • MONTEBELLO DV GAS FIREPLACES (LSM40/45MN-2, LSM40/45MP-2, LSM40/45EN-2) • INSTALLATION INSTRUCTIONS Note: Installation and repair should be done The appliance, when installed, must be electri- by a qualified service person. The appliance WARNING cally grounded in accordance with local codes should be inspected before use and at least or, in the absence of local codes, with the Improper installation, adjust- annually by a professional service person. Na
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T H N IN OUT O I O L I P T O ® LENNOX HEARTH PRODUCTS • MONTEBELLO DV GAS FIREPLACES (LSM40/45MN-2, LSM40/45MP-2, LSM40/45EN-2) • INSTALLATION INSTRUCTIONS Gas Pressure - All Models Orifice Sizes - Sea Level To high Altitude Gas Supply Inlet (All Models) Tables 2 and 3 show the appliances' inlet and manifold gas pressure requirements: These appliances are tested and approved for Inlet Pressure installation at elevations of 0-4500 feet (0-1372 Gauge Port Inlet Gas Supply Pressure meters
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® LENNOX HEARTH PRODUCTS • MONTEBELLO DV GAS FIREPLACES (LSM40/45MN-2, LSM40/45MP-2, LSM40/45EN-2) • INSTALLATION INSTRUCTIONS COLd CLIMATE INSULATION For cold climate installations, seal all cracks around your appliance with noncombustible material and wherever cold air could enter the room. It is especially important to insulate outside chase cavity between studs and under floor on which appliance rests, if floor is above ground level. Gas line holes and other open- HORIZONTAL VENT
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® LENNOX HEARTH PRODUCTS • MONTEBELLO DV GAS FIREPLACES (LSM40/45MN-2, LSM40/45MP-2, LSM40/45EN-2) • INSTALLATION INSTRUCTIONS VENT TERMINATION CLEARANCES Vertical Vent Termination Clearances These instructions should be used as a guide- Termination heights For Vents line and do not supersede local codes in any TERMINATION HEIGHTS FOR VENTS ABOVE Above Flat Or Sloped Roofs way. Install vent according to local codes, FLAT OR SLOPED ROOFS Ref. NFPA 54 / ANSI Z223.1 Horizontal Overhang th
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V ® LENNOX HEARTH PRODUCTS • MONTEBELLO DV GAS FIREPLACES (LSM40/45MN-2, LSM40/45MP-2, LSM40/45EN-2) • INSTALLATION INSTRUCTIONS ExTERIOR hORIZONTAL VENT TERMINATION CLEARANCE REQUIREMENTS NOTE: Local Codes Or Regulations May Require * See Item d in the Text Below. Different Clearances. Center Line Exterior Wall Inside of Termination Corner detail NOTE: Location Of The Vent Termination Must Not *18” 24" Interfere With Access To The Electrical Service. horizontal G Termination 36"
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® LENNOX HEARTH PRODUCTS • MONTEBELLO DV GAS FIREPLACES (LSM40/45MN-2, LSM40/45MP-2, LSM40/45EN-2) • INSTALLATION INSTRUCTIONS MINIMUM CLEARANCES TO COMBUSTIBLES Combustible Shelf height - Inches (millimeters) The appliance is approved with zero clearance to combustible materials Top Vent - with 2 Feet Vertical Vent and One 90 degree Elbow on all sides (as detailed in Table 5), with the following exception: When Model Secure Vent the unit is installed with one side flush with a wall, the
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® LENNOX HEARTH PRODUCTS • MONTEBELLO DV GAS FIREPLACES (LSM40/45MN-2, LSM40/45MP-2, LSM40/45EN-2) • INSTALLATION INSTRUCTIONS Step 3. (Page 12) Install the vent system and WARNING exterior termination. Use Top Flange For Step 4. (Page 21) Field Wiring 1/2” Thick Drywall Failure to position the parts in a. Millivolt and Electronic Appliances – Front Of accordance with these diagrams The operating control switch is factory Fireplace or failure to use only parts specifi- in
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® LENNOX HEARTH PRODUCTS • MONTEBELLO DV GAS FIREPLACES (LSM40/45MN-2, LSM40/45MP-2, LSM40/45EN-2) • INSTALLATION INSTRUCTIONS FIREPLACE ANd FRAMING SPECIFICATIONS Framing dimensions Models A B C Framing should be constructed - VENT FRAMING of 2x4 or larger lumber. in. 50-3/4 43 75-1/8 TOP VENT WITH 2 FEET 13 LSM40-2 VERTICAL VENT AND (330) mm 1289 1092 1908 ONE 90° ELBOW in. 56-7/8 48 80-1/16 LSM45-2 mm 1445 1219 2034 8-1/2 (216) 6-1/2 15 (165) (381) Efficiencies % Natural Gas Propane Mo
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® LENNOX HEARTH PRODUCTS • MONTEBELLO DV GAS FIREPLACES (LSM40/45MN-2, LSM40/45MP-2, LSM40/45EN-2) • INSTALLATION INSTRUCTIONS Model A B C d No. in. 50-5/8 83-5/8 59-1/8 41-7/8 LSM40-2 C mm 1286 2124 1502 1064 D in. 56-3/4 89-7/8 63-1/2 44-7/8 LSM45-2 mm 1441 2283 1613 1140 A B Back wall of chase/enclosure (including any finishing materials) Figure 13 - Corner Framing with Square Termination (SV8HTS) Never use galvanized or plastic pipe. Refer Notes: Step 2. ROUTING GAS LINE to Table 6 for
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® LENNOX HEARTH PRODUCTS • MONTEBELLO DV GAS FIREPLACES (LSM40/45MN-2, LSM40/45MP-2, LSM40/45EN-2) • INSTALLATION INSTRUCTIONS Installation of Vent Restrictor Step 3. INSTALL ThE VENT SYSTEM AIR INLET BAFFLE General Information A vent restrictor may be needed with this appli- ance. The restrictor is installed in the appliance These instructions should be used as a guide- top flue outlet as shown in Figure 15, line and do not supersede local codes in any way. Install vent according to lo
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® LENNOX HEARTH PRODUCTS • MONTEBELLO DV GAS FIREPLACES (LSM40/45MN-2, LSM40/45MP-2, LSM40/45EN-2) • INSTALLATION INSTRUCTIONS VERTICAL TERMINATION SYSTEMS (ROOF) VENT SECTION LENGTH CHART VENT SECTION LENGTH CHART Nominal T T Nominal Section 6 12 24 36 48 Section Length 6 12 24 36 48 O O Length (inches) See Figure 17 and Figures 25 through 27 on (inches) T T Net Section A Net Section A 4-1/2 10-1/2 22-1/2 34-1/2 46-1/2 Page 16 and their associated Vertical Vent Tables 4-1/2 10-1/2 22-1/2
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® LENNOX HEARTH PRODUCTS • MONTEBELLO DV GAS FIREPLACES (LSM40/45MN-2, LSM40/45MP-2, LSM40/45EN-2) • INSTALLATION INSTRUCTIONS B. Attach vent components to appliance - Se- Push the vent component against the previous Vertical (Offset) Installation cure Vent SV8 direct-vent system components section until it fully engages, then twist the Analyze the vent routing and determine the component clockwise running the dimples down are unitized concentric pipe components quantities of vent secti
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® LENNOX HEARTH PRODUCTS • MONTEBELLO DV GAS FIREPLACES (LSM40/45MN-2, LSM40/45MP-2, LSM40/45EN-2) • INSTALLATION INSTRUCTIONS One method of support is by utilizing field pro- K. Install the vertical termination - The vided support straps (conventional plumber's final step involves installation of the Vertical tape). Secure the plumber's tape to the framing Termination. Extend the vent sections to the members with nails or screws. Strap the tape height as shown in the "Vertical vent te
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® LENNOX HEARTH PRODUCTS • MONTEBELLO DV GAS FIREPLACES (LSM40/45MN-2, LSM40/45MP-2, LSM40/45EN-2) • INSTALLATION INSTRUCTIONS VERTICAL VENT FIGURES/TABLES Table A Notes: V Minimum • Secure V ent™ (rigid vent pipe) is shown h Maximum in the Figures. H feet (meter) feet (meter) • It is ver y important that the horizontal/ 10 (3.1) 2.5 (0.762) inclined run be maintained in a straight (no dips) and recommended to be in a slightly 15 (4.65) 3.5 (1.07) elevated plane, i
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® LENNOX HEARTH PRODUCTS • MONTEBELLO DV GAS FIREPLACES (LSM40/45MN-2, LSM40/45MP-2, LSM40/45EN-2) • INSTALLATION INSTRUCTIONS hORIZONTAL (OUTSIdE W ALL) TERMINATION SYSTEM TYPICAL HORIZONTAL VENT INSTALLATION Support Horizontal / Inclined Run SV8HTS Building Brackets See Figures 28, 31, 32 and 33 on Pages 17, Termination Support Shown 19 and 20 and their associated Horizontal Vent Framing Table which illustrate the various horizontal SV8E90 Elbow venting configurations that are possible
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® LENNOX HEARTH PRODUCTS • MONTEBELLO DV GAS FIREPLACES (LSM40/45MN-2, LSM40/45MP-2, LSM40/45EN-2) • INSTALLATION INSTRUCTIONS J. Assemble vent run to exterior wall - If not SV8HTS Firestop/Spacer (SV8HF) shown previously measured, locate the center of the Termination on the exterior side of the wall. It Shown. vent at the exterior wall. Prepare an opening may also be installed on the interior side. as described in Step B. Assemble the vent system to point where the terminus of the la
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® LENNOX HEARTH PRODUCTS • MONTEBELLO DV GAS FIREPLACES (LSM40/45MN-2, LSM40/45MP-2, LSM40/45EN-2) • INSTALLATION INSTRUCTIONS See Table 8 as an aid in venting component selection for a particular hORIZONTAL VENT FIGURES/TABLES range of exterior wall thicknesses. Notes: Venting Components Required for Various Exterior Wall Thick- • Secure V ent™ components (rigid vent pipe and terminal) are shown nesses, when using Square Termination Kit (SV8hTS) in the Figures. • Two 45 degree elb
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® LENNOX HEARTH PRODUCTS • MONTEBELLO DV GAS FIREPLACES (LSM40/45MN-2, LSM40/45MP-2, LSM40/45EN-2) • INSTALLATION INSTRUCTIONS hORIZONTAL VENT FIGURES/TABLES (continued) Wall Firestop/Spacer Table d (SV8HF) V Minimum h + h Maximum 1 H feet (meter) feet (meter) 3.5 (1.07) 2.5 (0.762) 6.5 (1.98) 3.5 (1.07) H 1 V 8.5 (2.6) 4.5 (1.37) 10.5 (3.2) 5.5 (1.68) 12.5 (3.8) 6.5 (1.98) Wall Firestop/Spacer 14.5 (4.4) 7.5 (2.3) (SV8HF) 16.5 (5.0) 8.5 (2.6) 18.5 (5.6) 9.5 (2.9) Ceiling Firestop/Spacer
