Lennox MPD35ST-NM-B Installation Instructions Manual

Merit plus series direct vent gas fireplace heaters
Hide thumbs Also See for MPD35ST-NM-B:

Advertisement

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.
In the Commonwealth of Massachusetts:
Installation must be performed by a licensed plumber or
gas fitter;
• See Table of Contents for location of additional Com-
monwealth of Massachusetts requirements.
WARNING: IF THE INFORMATION IN THIS MANUAL
IS NOT FOLLOWED EXACTLY, A FIRE OR EXPLO-
SION MAY RESULT CAUSING PROPERTY DAMAGE,
PERSONAL INJURY OR LOSS OF LIFE.
Do not store or use gasoline or other flammable
vapors or liquids in the vicinity of this or any
other appliance.
WHAT TO DO IF YOU SMELL GAS:
• Do not 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 your gas supplier's
instructions.
• If your gas supplier cannot be reached, call
the fire department.
Installation and service must be performed by
a qualified installer, service agency or the gas
supplier
.
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 con-
sultation ultérieure.
Portland
US
OTL Report No. 6-F-28-5
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
INSTALLATION
INSTRUCTIONS
DIRECT VENT MULTI-OPEN
MERIT
DIRECT VENT GAS FIREPLACE HEATERS
P/N 850,024M REV. F 06/2009
MODELS
Millivolt Models
MPD35ST-NM-B
MPD35ST-PM-B
MPD35PF-NM-B
MPD35PF-PM-B
AVERTISSEMENT: ASSUREZ-VOUS DE BIEN
SUIVRE LES INSTRUCTIONS DONNÉES DANS
CETTE NOTICE POUR RÉDUIRE AU MINIMUM LE
RISQUE D'INCENDIE D'EXPLOSION OU POUR
ÉVITER TOUT DOMMAGE MATÉRIEL, TOUTE
BLESSURE OU LA MORT.
Ne pas entreposer ni utiliser d'essence ni d'autre
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 aucun interrupteur. Ne pas vous
servir des téléphones se trouvant dans le báti-
ment où vous 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 incendies.
L'installation et l'entretien doivent être assurés
par un installeur ou un service d'entretien qualifié
ou par le fournisseur de gaz.
A French manual is available upon request. Order P/N 850,024CF
Ce manuel d'installation est disponible en francais, simplement en
faire la demande. Numéro de la pièce 850,024CF.
PLUS SERIES
Electronic Models
MPD35ST-NE-B
MPD35PF-NE-B


Advertisement

Table of Contents
loading

Summary of Contents for Lennox MPD35ST-NM-B

  • Page 1: Installation Instructions

    Millivolt Models Electronic Models In the Commonwealth of Massachusetts: Installation must be performed by a licensed plumber or • MPD35ST-NM-B MPD35ST-NE-B gas fitter; MPD35ST-PM-B MPD35PF-NE-B • See Table of Contents for location of additional Com- MPD35PF-NM-B monwealth of Massachusetts requirements.
  • Page 2: Table Of Contents

    TABLE OF CONTENTS PACKAGING LIST Both millivolt and electronic versions of these appliances are listed by OMNI-Test Labora- The assembled vented gas fireplace heater is tories, Inc. for installation in bedrooms and Packaging .........Page 2 packaged with: in Manufactured Homes. Introduction ........Page 2 General Information ......Page 2  - One log set, with one plastic bag of ver-...
  • Page 3 Millivolt Models - The millivolt appliances are Manifold Gas Supply Pressure Burner Orifice Sizes (all models) manually controlled and feature a spark igniter (millivolt models) (piezo) that allows the appliance's pilot gas to Natural Propane Elevation be lit without the use of matches or batteries. Fuel # High Feet (meters)
  • Page 4: New York City Approval

    Massachusetts: If the fireplace is being installed on a cement The location should also be free of electrical, These fireplaces are approved for installation in slab, in cold climates, a sheet of plywood or other plumbing or other heating / air conditioning the US state of Massachusetts if the following raised platform can be placed underneath to ducting.
  • Page 5: Manufactured Homes

    The appliance should be mounted on a fully VENT TERMINATION CLEARANCES supported base extending the full width and depth of the appliance. The appliance may be These instructions should be used as a guideline and do not supersede local codes in any located on or near conventional construction way.
  • Page 6 EXTERIOR HORIZONTAL VENT TERMINATION CLEARANCE REQUIREMENTS See Item D in the Text Below. Center Line Exterior Wall Inside of Termination Corner Detail *18” Horizontal Termination 18” Ventilated Soffit Inside Corner = 9" in U.S. = 2" in Canada DETAIL D 3 ft.
  • Page 7 MINIMUM CLEARANCES TO COMBUSTIBLES Appliance and Vent Clearances Hearth Extension - A hearth extension is not required with this appliance. If a hearth extension is used, Maintain clearances from appliance to do not block the lower control compartment access door. Any hearth extension used is for appearance combustible materials as detailed in Table 7, only and does not have to conform to standard hearth extension installation requirements.
  • Page 8: Detailed Installation Steps

    DETAILED INSTALLATION STEPS If the appliance is to be elevated above floor TYPICAL INSTALLATION SEQUENCE level, a solid continuous platform must be . Remove the shipping carton. constructed. Headers may be in direct contact The typical sequence of installation follows, 2.
  • Page 9: Fireplace Specs - See-Through

    22" (558 Annual Fuel Utilization Efficiency See also, Side Vent Seal Cap elbow • note below. Due to Lennox' ongoing commitment to quality, all specifications, ratings and dimensions are 12-1/8 subject to change without notice. (308) 5-1/8 Appliance has a factory-installed vent seal cap (130) (see Figures 16 &...
  • Page 10: Fireplace Specs - Peninsula

    22" (558 Annual Fuel Utilization Efficiency elbow • See also, Side Vent Seal Cap note below. Due to Lennox' ongoing commitment to quality, all specifications, ratings and dimensions are 12-1/8 subject to change without notice. (308) 5-1/8 Appliance has a factory-installed vent seal cap (130) (see Figures 16 &...
  • Page 11: Step 2. Routing Gas Line

    Step 2. ROUTING GAS LINE Step 3. INSTALL THE VENT SYSTEM Notes: Route a gas line along the inside of the right side GENERAL INFORMATION • All appliances are factory-equipped with a framing as shown in Figure 14. Gas lines must flexible gas line connector and 1/2 inch shutoff These instructions should be used as a guideline be routed, constructed and made of materials...
  • Page 12: Vertical Termination Systems

    VERTICAL TERMINATION SYSTEMS (ROOF) VENT SECTION LENGTH CHART VENT SECTION LENGTH CHART See Figure 15 and Figures 27 to 31 and their Nominal Nominal Section Length (inches) Section Length associated Vertical Vent Tables illustrate the i t c (inches) vertical venting configurations that are allowed Net Section 4 ½...
  • Page 13: Vent Restrictor Installation

    REMOVE VENT SEAL CAP INSTALLING VENT RESTRICTOR (Top Vent Installations with Vertical Terminations Only) (From the vent that will be used only) A vent restrictor (provided) may be needed with this appliance. If needed, Top Vent Installations - See Figure 16 install the vent restrictor (provided) in the appliance top flue outlet as Side Vent Installations - See Figure 17 shown in Figure 18 when vertically terminating the vent system above...
  • Page 14 To attach a vent component to the appliance E. Support the vertical vent run sections - collar, align the dimpled end over the collar, Note - Proper venting support is very important. 0-/2" Min. (267 mm) adjusting the radial alignment until the four The weight of the vent must not be supported locking dimples are aligned with the inlet of by the fireplace in any degree.
  • Page 15 Use a carpenter’s level to measure from a SV4.5CGV- SV4.5FA or constant surface and adjust the support straps Termination SV4.5FB Flashing Storm as necessary. and SV4.5SC Collar Storm Collar It is important to maintain the required clear- ances to combustibles: " (25 mm) at all sides ”...
  • Page 16: Vertical Vent Figures And Tables

    VERTICAL VENT FIGURES/TABLES Table A Note: Secure Vent (rigid vent pipe) is shown V Minimum H Maximum in the Figures; Secure Flex (flexible vent pipe) Ceiling Firestop / Spacer (SV4.5VF) may also be used. feet (meter) feet (meter) (0.60) (0.305) WARNING: Under No Circumstances, May Separate Sections of Concen- (.29)
  • Page 17 VERTICAL VENT FIGURES / TABLES (CONTINUED) Table C Maximum H Maximum V Minimum feet (meter) feet (meter) feet (meter) Ceiling Firestop / (.524) (0.60) (0.305) Spacer (SV4.5VF) (3.048) (.29) (0.60) (4.572) (.829) (0.94) (6.096) (2.438) (.29) V + V  + H + H  = 40 feet (2.2 m) Max Wall Firestop/ H = 8 feet (2.438 meters) Max.
  • Page 18: Horizontal Termination System

    Support Horizontal / Inclined Run Building Brackets Support Framing SV4.5HT-2 Termination SV4.5E90 Shown Elbow SV4.5L6/2/24/36/48 Exterior Vent Sections Ceiling Firestop / Spacer Wall Vertical SV4.5VF Support Bracket Spacing Rise Every 5 ft (.52 m) When Using Secure Flex, Use Firestop / Spacer SF4.5VF SV4.5HT-2 Termination Shown...
  • Page 19 Push the vent component against the collar To help minimize water infiltration it is until it fully engages, then twist the component recommended that the Firestop/Spacer (SV4.5HF) be installed on the exterior clockwise, running the dimples down and along side of the wall. SV4.5 HT-2 the incline channels until they seat at the end of Termination...
  • Page 20 Remember to maintain " (25 mm) clearance L. Install Firestop / Spacer at exterior wall It is very important that the horizontal / to combustibles, framing members, and attic - When using the square termination, install inclined run be maintained in a straight (no or ceiling insulation when running vertical SV4.5HF (Secure Vent), SF4.5HF (Secure Flex) dips) and recommended to be in a slightly...
  • Page 21: Horizontal Vent Figures And Tables

    HORIZONTAL VENT FIGURES/TABLES WARNING: Under no circumstances, may separate Notes: sections of concentric flexible vent pipe be joined together. • Secure Vent components (rigid vent pipe and terminal) are shown in the Figures; Secure Flex components (flexible vent pipe and terminal) may also be used.
  • Page 22 HORIZONTAL VENT FIGURES / TABLES (CONTINUED) Table G V Minimum Maximum H Maximum feet (meter) feet (meter) feet (meter) (.524) (0.60) (0.305) (3.048) (.29) (0.60) (4.572) (.829) (0.94) Wall Firestop/ Spacer (SV4.5HF) (6.096) (2.438) (.29) V + H + H  = 40 feet (2.2 m) Max Ceiling Firestop H = 8 feet (2.438 meters) Max.
  • Page 23 HORIZONTAL VENT FIGURES / TABLES (CONTINUED) When using Secure Flex, use Example: If 20 feet total (H+H Wall Firestop / Spacer Firestop / Spacer SF4.5VF horizontal vent run is needed, then 4 (SV4.5HF) When using Secure Flex, use feet minimum of (V) vertical vent will Firestop / Spacer SF4.5HF be required.
  • Page 24: Venting Using Flexible Vent Pipe

    VERTICAL OR HORIZONTAL VENTING USING SECuRE FLEX KITS AND COMPONENTS Flex Vent Note: Outer Pipe Is Pulled Away To Show The Detail of The Inner Pipe Securing Screw - 3 Places Secure Flex venting kits and components Equidistant (equally spaced) Just Below Gear Clamp) may be used in any venting application in APPLY ONLY MIL-PAC BLACK...
  • Page 25: Step 4. Field Wiring

    Step 4. FIELD WIRING 2. Install the junction box and receptacle outlet B. Electronic Wiring (See Figures 45 to 47) to the left of the valve in the front (for optional Note: The electronic appliance must be con- blower kit). See junction box and receptacle CAUTION: Label all wires prior nected to the main 120 VAC power supply.
  • Page 26: Step 5. Optional Blower Kit Wiring

    CAUTION: Ground supply lead must CAUTION: Ensure that wires are Receptacle, Junction Box be connected to the wire attached positioned away from hot surfaces and Cover Plate Installation to the green ground screw located and sharp edges. Outlet Receptacle on the outlet box. See Figure 47. Junction Box Failure to do so will result in a CAUTION: Do not connect the...
  • Page 27: Step 6. Connecting Gas Line

    Step 6. CONNECTING GAS LINE Gas Flex Line Connector Make gas line connections. All codes require a Valve shut-off valve mounted in the supply line. Figure 3/8" NPT x Flare Fitting 48 illustrates two methods for connecting the 1/2" x 3/8" Flare gas supply.
  • Page 28: Step 7. Checking Operation

    Step 7. CHECKING APPLIANCE OPERA- Step 8. INSTALL GRATE, VERMICULITE, TION GLOWING EMBERS AND LOGS Proper Pilot Flame Appearance Thermocouple With the gas line installed, run initial system Igniter Rod WARNING: DO NOT attempt to /8" Min. checkout before closing up the front of the Hood (3 mm) install the logs until the appli-...
  • Page 29 Bottom View of Logs (in packaging) LOG SET - IDENTIFICATION LOG SET Catalog Number H320 * Item Description MPD-33/35/40/45 Log Log, Left Rear Log, Right Log, Top Center Log, Top/Left Log, Top/Right * Item "letters" above correspond to photos on right REFERENCE Firebox Accessories / Parts Cat.
  • Page 30 INSTALLATION STEPS: 7. Place Log (B) as shown in Figure 55. Position Log (B) Against The Back Of READ WARNINGS ON Page 29 BEFORE PROCEEDING The Grate Here . Remove the front glass enclosure pan el (see Glass Enclosure Panel Removal Instructions, Page 31).
  • Page 31: Step 9. Installing Glass Enclosure Panels

    0. Place Log (E) as shown in Figure 58. WARNING: Do not operate appliance with the Glass Enclosure Panels (Glass Doors) removed, cracked Position The Round End Of Log (E) Against The Notch Of or broken. Replacement of the glass should be done Log (D) Here.
  • Page 32 Burner Air Shutter Adjustment Procedure . Locate adjustment rod and adjust air shutter to the standard setting as shown in Figure 62 (adjustment rod is located in the lower control area). Note: Rotating the adjustment rod coun- terclockwise decreases air and clockwise increases air.
  • Page 33: Step 11. Hood Installation

    Step . HOOD INSTALLATION All of these appliances must have hoods installed prior to operating (see Figure 63). On all clean face appliances, slide the hood into the slots on the lower edge of the radiant panel. On louvered face appliances, slide the hood into the slots on the lower edge of the cabinet top. FINISHING REQUIREMENTS Wall Details Complete finished interior wall.
  • Page 34: Installation Accessories

    INSTALLATION ACCESSORIES Item Cat. No. Model Description H1968 SV4.5HT-2 Horizontal Square Termination With Firestop / spacer (H2246) & Adapter (74L61) H2152 SV4.5CGV-1 Vertical Termination Cap H4687 SV4.5CTS Chase Top Termination Square H4716 SV4.5CTS-B Chase Top Termination Square, Black H4717 SV4.5CTS-TC Chase Top Termination Square, Terra Cotta 77L70 SV4.5L6...
  • Page 35 Item Cat. No. Model Description H1969 SF4.5HT-2 Horizontal Square Termination (without flex) 77L87 SFKIT12S Flex Square Term. (with 12 inch [305 mm] * compressed flex) 77L88 SFKIT18S Flex Square Term. (with 18 inch [457 mm] * compressed flex) 77L89 SFKIT24S Flex Square Term.
  • Page 36: Gas Conversion Kits

    GAS CONVERSION KITS Gas conversion kits are available to adapt the IMPORTANT - CANADA ONLY: ATTENTION - LE CANADA SEULE- appliance from the use of one type of gas to The conversion shall be car- MENT: La conversion devra être the use of another.
  • Page 37 Gas Valve Pan Burner Assembly Air Shutter Adjustment Lever Manifold Pressure Test Port Venturi Tube Slotted Valve Access Side of Fireplace Spring Adjusting Firebox Subfloor Screw Figure 64 Figure 67 c. Locate the two (2) latches at the top of Step 5.
  • Page 38 b. Install the burner as shown in Figure 70. Step 9. Reassemble the remaining components by reversing the procedures outlined in the Ensure that the arm of the venturi of the burner preceding steps. Use pipe joint compound or is hooked onto the air shutter adjustment lever Teflon tape on all pipe fittings before installing (refer to Figure 64 on Page 37 ).
  • Page 39 NOTE: THIS PAGE INTENTIONALLY LEFT BLANK. NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
  • Page 40 Lennox 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. Printed in U.S.A. © 2005 by LENNOX HEARTH PRODUCTS P/N 850,024M REV.

Table of Contents