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In case of regulator malfunction, the six (6) (1.83m) feet distance will reduce the chance of gas entering the vent cap. Location of Furnace Pick a location on an outside wall with a clear space of 28" (711mm) high by 49" (124cm) wide in the room. Locating Wall Opening The furnace is to be located on an outside wall. Locate wall studs so that wall opening will be located between wall studs. The wall studs can be used for attachment of wall mounting bracket. The wall opening required as shown in Figure 3 is a diameter of 7 1/2 inches (191mm). A template is provided in furnace carton for positioning furnace on the wall. Also, refer to Figure 3 for positioning the furnace on wall and for locating gas line connection. Figure 4 will position the furnace four inches off the floor. If it is desired to position the furnace higher on the wall, add the difference to the "A," "B" and "C" dimensions. Note: The vent opening is not in the center of the furnace. Figure 3 Figure 4 CLEARANCES INSTALLATION INSTRUCTIONS INSTALLATION INSTRUCTIONS (continued) Figure 6 Figure 5 Installing Wall Mounting Bracket Locate and cut wall opening. If there is insulation above the wall opening (air inlet tube) a barrier should be installed above the wall opening (air inlet tube) to prevent insulation from coming in contact with the air inlet tube. The barrier must not penetrate into the 7 1/2" diameter wall opening. Place the flat surface of the wall mounting bracket toward the wall. Insert half round flange of wall mounting bracket into and at the top of the wall opening. Level the wall mounting bracket in the wall opening. On solid wall, when using wall studs for attachment of wall mounting bracket, fasten wall mounting bracket to wall studs with two (2) 10 x 1 1/2" screws and fasten two (2) additional 10 x 1 1/2" screws through the wall mounting bracket and into the solid wall. On sheet rock wall, when using wall studs for attachment of wall mounting bracket, fasten wall mounting bracket to wall studs with four (4) 10 x 1 1/2" screws or four (4) plastic expansion anchors. On Sheet Rock Wall Using Plastic Expansion Anchors 1. After locating mounting holes, drill four (4) 5/16" diameter holes into the wall. 2. Insert four (4) plastic expansion anchors provided into the holes. 3. Tighten four (4) #10 x 1" screws provided into the plastic expansion anchors (See Figure 6). Attaching Furnace to Wall Mounting Bracket 1. Remove casing front from furnace. 2. Lay furnace face-down on a non-abrasive work surface. 3. Place collar on four inch flue tube against combustion camber back. Align clearance holes on collar with screw holes in combustion chamber. Attach four inch flue tube against combustion chamber with four (4) 10 x 1/2" screws. 4. Place collar on six inch air tube against inlet air drop chute. Align clearance holes on collar holes with screw holes in inlet air drop chute. Attach six inch air tube to inlet air drop chute with eight (8) 10 x 1/2" screws. 5. When facing the furnace, the two (2) clearance holes for attaching the furnace to the wall mounting bracket are located beneath the casing top and above the combustion chamber. 6. Insert tubes through wall opening as you hang the furnace on the wall mounting bracket by aligning two *2) tabs on the wall mounting bracket with two (2) slots located on inner casing top. Attention: You must support the weight of the furnace until the furnace is attached to the wall mounting bracket. 7. Attach furnace to wall mounting bracket with two (2) 10 x 1/2" screws. Attention: You will need a 5/16" socket with a 10" - 12" extension to attach furnace to wall mounting bracket. 8. The inner casing bottom is to be fastened to the wall. On solid wall, fasten inner casing bottom with two (2) 10 x 1 1/2" screws. On sheet rock wall, fasten inner casing bottom with two (2) plastic expansion anchors. 13117-9-0907 Page 9 Installing Vent Assembly Attention: Do not attempt to cut vent tubes. When you order appropriate vent kit for measured wall depth, the vent tubes will fit together. 1. Place provided caulking beneath the collar of the outside mounting plate. Use additional caulking to correct uneven wall surface, such as clapboard. 2. Insert six inch air tube on outside mounting plate INTO six inch air tube attached to inlet air drop chute. Place four inch flue tube on vent cap OVER four inch flue tube attached to combustion chamber. Position the outside mounting plate so that six inch air tube has a slight downward slope to the outside. The downward slope is necessary to prevent the entry of rainwater. Attach outside mounting plate to exterior wall with four (4) 10 x 1 1/2" screws. 3. Installation is completed. Reassembly And Resealing Vent-Air Intake System. When vent-air intake system is removed for service the furnace, the following steps will assure proper reassembly and resealing of the vent-air intake assembly. 1. Remove old caulking beneath the collar of the outside mounting plate. Apply new caulking ben...
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