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Manafacture: Lennox Hearth File size: 2.39 mb File name: Language of manual:

* Field-Provided Junction Box and Duplex Receptacle * Narrow (2-1/8 Inch Wide) J-Box Required CAUTION: ENSURE THAT WIRES ARE POSITIONED AWAY FROM HOT SURFACES AND SHARP EDGES. LENNOX HEARTH PRODUCTS • MERIT PLUS® B-VENT GAS FIREPLACES (MPB33/35/40/45) • INSTALLATION INSTRUCTIONS 6. If wall-mounted ON/OFF control is to be used, mount it in a convenient location on a wall near the fireplace. 7. If an optional control is to be used, wire it in the low voltage circuit as shown in Figure 16. Note: The supplied 15 feet of 2 conductor wire has one end of each conductor connected to the gas valve circuit and the other end of each conductor placed loose inside the bottom compartment. 8. After the wiring is complete, replace the cover plate. WARNING Electronic models of these appliances are equipped with a three- prong (grounding) plug utilizedin connecting the electroniccomponents to the junction boxin the lower compartment. Thisgrounding plug provides protection against shock hazard andshould be plugged directly intothe properly grounded three- prong receptacle. DO NOT cutor remove the grounding prongfrom the plug. STEP 5. WIRING OPTIONAL FORCED AIR BLOWER KIT FBK-100, FBK-200, and FBK-250 Kits (See Figure 17) An electrical outlet box is provided for the installation of the FBK-100, FBK-200 and FBK-250 forced air blower kits. Electrical power must be provided to this box to operate these blowers. Install the blower kits according to the installation instructions provided with the kits. Note: The tab connecting the two receptacles of the outlet box must be broken in the FBK-100 and FBK-200 blower kit applications (see Figure 17). 120V, 60HZ, 1PH Factory Wired Ground Field Wired Junction Box Tab Intact Tab Broken Plug blower into this receptacle neerG- dnuorG* Wall-mounted ON/ OFF Blower Switch or Variable Speed Control Switch. Blower etihW- lartueN120 VAC - Black Green Ground Screw White GreenNeutral Side of Receptacle Hot Side of ReceptacleRedBlack Figure 17: Junction Box Wiring STEP 6. CONNECTING GAS LINE Make gas line connections. All codes require a shut-off valve mounted in the supply line. The orientation of the shut-off valve should face the front (see Figure 19). Figure 18 illustrates two methods for connecting the gas supply. The fl ex-line method is acceptable in the U.S.; however, Canadian requirements vary depending on locality. Installation must be in compliance with local codes. A sediment trap is recommended in the gas piping within the home to prevent moisture and debris in the line from damaging the valve. These appliances are equipped with a gas fl ex line for use (where permitted) in connecting the unit to the gas line. A gas fl ex line is provided to aid in attaching the direct vent appliance to the gas supply. The gas fl ex line can only be used where local codes permit. Refer to Figure 18 for fl ex line description. The fl ex line is rated for both natural and propane gas. A manual shut off valve is also provided with the fl ex line....

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