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LENNOX HEARTH SYM-45
Owner's Manual
Shop genuine replacement parts for LENNOX HEARTH
SYM-45
Find Your LENNOX HEARTH Fireplace Parts - Select From 237 Models
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Summary of Contents for Lennox Hearth Products Symmetry Series

  • Page 1 This Owner's Manual is provided and hosted by Appliance Factory Parts. LENNOX HEARTH SYM-45 Owner's Manual Shop genuine replacement parts for LENNOX HEARTH SYM-45 Find Your LENNOX HEARTH Fireplace Parts - Select From 237 Models -------- Manual continues below --------...
  • Page 2: Installation Instructions

    INSTALLATION INSTRUC TIONS Direct Vent Symmetry ™ Series P/N 506023-08 Rev. D 10/2012 MODELS This manual is one of a set of two supporting this product. SYM-35N SYM-40N SYM-45N Refer to P/N 506025-01 for Care and Operation Instructions. Ce manuel est disponible en francais, simplement SYM-35P SYM-40P SYM-45P...
  • Page 3: Table Of Contents

    TABLE OF CONTENTS GENERAL INFORMATION PACKAGING Packaging .........Page 2 The assembled vented gas fireplace heater is WARNING packaged with the following: Introduction ........Page 2 Young children should be care- General Information ......Page 2 1 - The logs are packaged in foam located within fully supervised when they are Requirements for the the firebox.
  • Page 4 Note: Installation and repair should be done Misc. Codes / Standards - WARNING by a qualified service person. The appliance The Installation must conform to local codes or, should be inspected before use and at least in the absence of local codes, with the National Improper installation, adjust- annually by a professional service person.
  • Page 5: Requirements For The

    Gas Pressure - All Models Green Wire Tables 3 and 4 show the appliances' inlet and (From DFC Wire manifold gas pressure requirements: Harness) Connect GTMS Wire Harness Manifold (Out) Inlet Gas Supply Pressure Test Port (all models) Pressure Fuel # Minimum Maximum Line (In) Test Port...
  • Page 6: New York City, New York (Mea)

    • A hard wired carbon monoxide detector with an alarm and battery back-up must be Note: When the unit is installed with one installed on the floor level where the gas side flush with a wall, the wall on the other fireplace is installed.
  • Page 7: Vent Termination Clearances

    Be aware that this is a heat producing ap- Vertical Vent Termination Clearances pliance. Objects placed above the unit are Termination Heights For Vents exposed to elevated temperatures. Above Flat Or Sloped Roofs TERMINATION HEIGHTS FOR VENTS ABOVE FLAT OR SLOPED ROOFS Ref.
  • Page 8 EXTERIOR HORIZONTAL VENT TERMINATION CLEARANCE REQUIREMENTS NOTE: Local Codes Or Regulations May Require Different Clearances. See Item D in the Text Below. NOTE: Location Of The Vent Termination Inside Exterior Wall Must Not Interfere With Access To The Corner Detail Electrical Service.
  • Page 9: Minimum Clearances To Combustibles

    MINIMUM CLEARANCES TO COMBUSTIBLES Combustible Shelf Height - Inches (millimeters) Appliance And Vent Clearances Model No. Top Vent - with One 90 Degree Elbow Secure Vent Secure Flex (flex elbow) The appliance is approved with zero clearance to combustible materials on SYM-35 all sides (as detailed in Table 6 ), with the following exception: When the SYM-40...
  • Page 10: Detailed Installation Steps

    Step 1. FRAMING TYPICAL INSTALLATION SEQUENCE WARNING Frame these appliances as illustrated in Figures The typical sequence of installation is outlined Failure to position the parts in 12 and 13 on Pages 10 and 11 (Figure 13 below. However, each installation is unique accordance with these diagrams applies to corner framing installations only).
  • Page 11: Fireplace And Framing Specifications

    FIREPLACE AND FRAMING SPECIFICATIONS Framing Framing should be constructed of 2x4 or Vent Framing - Top Vent larger lumber Framing Dimensions 10-1/2 With One 90° Elbow Model No. 35-9/16 40-5/16 21-7/16 56-1/2 SYM-35 1024 1435 40-9/16 40-5/16 21-7/16 56-1/2 SYM-40 (178) 1030 1024...
  • Page 12: Fireplace Framing Specifications

    FIREPLACE FRAMING SPECIFICATIONS . n i 7 (178) . n i . n i Note- Venting requirements for corner installations - the horizontal vent length “a” to “b,” must not exceed 28 inches (711 mm). *These dimensions occur when one 45 degree elbow is connected directly to the appliance collar.
  • Page 13: Step 3. Install The Venting System

    Step 3. INSTALL THE VENT SYSTEM The vent system may not service multiple appliances, and must never be connected to a Fixed Exhaust Vent Restrictor flue serving a solid fuel burning appliance. The General Information vent pipe is tested to be run inside an enclosed wall (such as a chase).
  • Page 14: Vertical Termination Systems

    VERTICAL TERMINATION SYSTEMS (ROOF) i t c i t c See Figure 16 and Figures 24 through 26 O O O O O T T T T T on Pages 16 and 17 and their associated A A A A A i t c i t c L L L L L...
  • Page 15 Vertical (Offset) Installation B. Attach vent components to appliance Push the vent component against the previous - Secure Vent SV4.5 direct-vent system compo- section until it fully engages, then twist the Analyze the vent routing and determine the nents are unitized concentric pipe components component clockwise running the dimples down quantities of vent sections and number of elbows featuring positive twist lock connections (see...
  • Page 16: Sv4.5Cgv-1

    One method of support is by utilizing field pro- K. Install the vertical termination - The final step involves installation of the SV4.5CGV-1 vided support straps (conventional plumber's Vertical Termination. Extend the vent sections tape). Secure the plumber's tape to the framing to the height as shown in the "Vertical vent members with nails or screws.
  • Page 17: Vertical Vent Tables And Figures

    VERTICAL VENT FIGURES/TABLES Table A Notes: V Minimum H Maximum • Secure Vent™ (rigid vent pipe) is shown in the Figures; Secure Flex™ (flexible vent feet (meters) feet (meters) pipe) may also be used. (0.601) (1.524) • It is very important that the horizontal/in- clined run be maintained in a straight (no (0.914) (3.1)
  • Page 18: Horizontal (Outside Wall) Termination System

    VERTICAL VENT FIGURES/TABLES (CONTINUED) Table B V Minimum Maximum Ceiling Firestop / Spacer Example: If 20 feet total (H+H feet (meters) feet (meters) (SV4.5VF) horizontal vent run is needed, then 4 Wall Firestop/ Spacer (SV4.5HF) feet minimum of (V) vertical vent will (1.524) (0.601) be required.
  • Page 19: Clearance

    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 Wall Firestop / Spacer Ceiling SV4.5VF Support Bracket Spacing Vertical Rise Every 5 ft (1.52 m) When Using Secure Flex™, Typical Use Firestop / Spacer SF4.5VF Termination...
  • Page 20 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. It vent at the exterior wall. Prepare an opening as Shown may also be installed on the interior side.
  • Page 21: Horizontal Vent Tables And Figures

    Use Table 9 as an aid in venting component selection for a particular range of exterior wall thicknesses. Example: If 20 feet of (H) hori- Table C zontal vent run is needed, then H Maximum V Minimum 4 feet minimum of (V) vertical Venting Components Required for Various Exterior Wall Thick- vent will be required.
  • Page 22 HORIZONTAL VENT FIGURES / TABLES (CONTINUED) Wall Firestop/Spacer Table D (SV4.5HF) H Maximum V Minimum feet (meters) feet (meters) 3-1/4 (0.991) (0.061) (2.134) (0.914) 10-1/2 (3.2) (1.22) (4.267) (1.524) Wall Note - When using Firestop/Spacer Secure Flex , use 17-1/2 (5.33) (1.729) (SV4.5HF)
  • Page 23 HORIZONTAL VENT FIGURES / TABLES (CONTINUED) When using Secure Flex Typical termination shown. Table E use Firestop/Spacer SF4.5VF. H Maximum V Minimum When using Secure Flex, use Firestop/Spacer feet (meters) feet (meters) SF4.5HF. 3-1/4 (0.991) (0.061) Ceiling (2.134) (0.914) Firestop/Spacer (SV4.5VF) 10-1/2 (3.2)
  • Page 24: Venting Using Flexible Vent Pipe

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

    Step 4. FIELD WIRING Verify proper operation after servicing. IMPORTANT: Ground supply lead must be connected to the wire attached to the S'assurer que l'appareil fonctionne adé- CAUTION green ground screw located on the outlet quatement une fois l'entretien terminé. box.
  • Page 26: Remote Control System

    Remote Control System Place the 3 position slider switch in the "Remote" WARNING position (see Figure 35 ). Using the end of a The Remote and Receiver allows you to com- paper clip, or other similar object, insert the Fire hazard. Can cause severe mand the functions of your fireplace from end of the paper clip into the hole marked "PRG"...
  • Page 27: Step 5. Connecting Gas Line

    Step 5. CONNECTING GAS LINE GAS CONNECTION All codes require a shut-off valve mounted Flex Line Connector in the supply line. The orientation of the shut-off valve should face the front. Figure 3/8" NPT x 3/8" 36 illustrates two methods for connecting the 1/2"...
  • Page 28: Step 6. Verifying Appliance Operation

    Step 6. VERIFYING APPLIANCE OPERA- Step 7. INSTALL VOLCANIC STONE, TION GLOWING EMBERS AND LOGS With gas line installed run initial system NOTE: Turn off all electricity to the appliance checkout before closing up the front of the before you install volcanic stone, embers and unit.
  • Page 29 LOG AND GLOWING EMBER PLACEMENT REFERENCE Firebox Accessories / Parts Step 1. Follow the log placement instructions exactly. Refer to Figures 42, 43 and 44 for detailed log placement instructions. Catalog Number Model Number Description 88L53 Bag of Glowing Embers Step 2.
  • Page 30 SYM-35 LOG PLACEMENT Number Description Rear Log Bottom Left Log Bottom Right Log Top Right Log Front Log (3) Catalog Number for the entire log set: H6953 Place log (4) on log (3) with the front of the log touching the front of log (5), resting on the burner top.
  • Page 31 SYM-40 LOG PLACEMENT Number Description Rear Log Bottom Left Log Bottom Right Log Top Left Log Top Right Log Top Right Cross Log Front Log Catalog Number for the entire log set: H6956 Align the two holes at the bottom of log (1) over First place log (6) over the pin on log (3), then the two tabs on the burner rest the back half of log (6) over the pin on log (1)
  • Page 32 SYM-45 LOG PLACEMENT Number Description Rear Log Bottom Left Log Bottom Right Log Top Left Log Top Left Cross Log Top Right Cross Log Top Right Log Front Log Catalog Number for the entire log set: H6959 Align the two holes on the bottom of log (1) over First place log (6) over the pin on log (3), then the two log tabs at the back of the burner rest the back half of log (6) over the pin on log (1)
  • Page 33: Step 9. Burner Adjustments

    Step 8. REMOVING AND INSTALLING THE Step 9. BURNER ADJUSTMENTS 2. Pull the latches forward and down to release them from the door channel. GLASS DOOR Flame Appearance and sooting 3. Pull the bottom of the door out a few inches Proper flame appearance is a flame which is and grasp it on the right and left.
  • Page 34 Burner Air Shutter Adjustment Procedure WARNINGS • Air shutter adjustment should only be performed by a quali- fied professional service tech- nician. • Ensure front glass panel are in place and sealed during adjustment. CAUTIONS • Soot will be produced if the air shutter is closed too much.
  • Page 35: Step 10. Hood Installation

    Burner Assembly Combustible Finished Wall This Area Must Remain Materials Clear of Combustible Materials View Air 1" Min (25 mm) Shutter Pilot Assembly Combustible Spacer materials not Air Shutter allowed below Adjustment Rod this point on the face of the MAIN BURNER appliance.
  • Page 36: Step 11. Attaching Safety-In-Operation Warnings

    3. Si no puede encontrar las etiquetas, sírvase Hearth Products dealer to receive additional propriétaire. llamar a Lennox Hearth Products o al distribuidor safety instruction labels free of charge. 3. Si vous ne trouvez pas les étiquettes, veuillez de Lennox Hearth Products más cercano para...
  • Page 37: Installation Accessories

    INSTALLATION ACCESSORIES Listed Secure Vent™ Components Cat. No. Model Description Cat. No. Model Description 77L70 SV4.5L6 6 Inch (152 mm) Vent Sections (Rigid) 77L71 SV4.5L12 12 Inch (305 mm) H1968 SV4.5HT-2 Horizontal Square Termina- tion With Firestop / spacer 77L72 SV4.5L24 24 Inch (610 mm) (H2246) &...
  • Page 38 INSTALLATION ACCESSORIES CONTINUED Listed Secure Vent™ Components Cat. # Model Description Cat. # Model Description H1969 SF4.5HT-2 Horizontal Square Termina- tion for flex (without flex) 17M52 SV4.5HGS-1 Termination Guard, Square 77L87 SFKIT12S Square Term. for flex (1 pack) Ref. instructions (with 12 inch [305 mm] * #750,109M compressed flex)
  • Page 39: Gas Conversion Kits

    GAS CONVERSION KITS Natural To Propane Gas Conversion Kits Models Catolog No. WARNING SYM-35 H7749 SYM-40 H7750 This conversion kit shall be installed by a qualified service agency in accor- SYM-45 H7751 dance with the manufacturer’s instructions and all applicable codes and requirements of the authority having jurisdiction.
  • Page 40 Step 8. Install the new Stepper Motor pressure regulator assembly using the supplied screws Pressure Connect GTMS as shown in Figure 52. Tighten screws securely Regulator Wire Harness (reference torque = 25 lb. in.). Tower Manifold (Out) Pressure Regulator Test Port Step 9.
  • Page 41 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. LENNOX , the LENNOX design, DAVE LENNOX, the image of DAVE LENNOX and other related ®...

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