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Manafacture: Superior File size: 4.04 mb File name: Lennox_Superior_SLDVT_Installation_506009-01.pdf Language of manual:

Push the vent component against the previous section until it fully engages, then twist the componentclockwiserunningthedimplesdown and along the incline channels until they seat at the end of the channels. This seating position is indicated by the alignment of the arrow and dimple as shown in Figure 19 on Page 14. F. Install firestop/spacer at ceiling - WhenusingSecureVent,useSV4.5VFfirestop/ spacer at ceiling joists; when using Secure Flex, use SF4.5VF firestop/spacer. If there is living spaceabovetheceilinglevel,thefirestop/spacer must be installed on the bottom side of the ceiling. If attic space is above the ceiling, the firestop/spacermustbeinstalled onthetop side of the joist. Route the vent sections through the framed opening and secure the firestop/spacer with 8d nails or other appropriate fasteners at each corner. Remember to maintain 1" (25 mm) clearance to combustibles, framing members, and attic or ceiling insulation when running vertical chimney sections. G. Support the vertical run sections - See Section E on Page 15. H.Changeventdirection -At transitionfromor toahorizontal/inclinedrun,installtheSV4.5E45 and SV4.5E90 elbows in the same manner as the straight vent sections. The elbows feature a twist section to allow them to be routed about the center axis of their initial collar section to align with the required direction of the next vent run element. Twist elbow sections in a clockwise direction only so as to avoid the possibility of unlocking any ofthepreviouslyconnectedventsections(see Figure 19 on Page 14). I. Continue installation of horizontal/inclined sections -Continue with the installation of the straight vent sections in horizontal/inclined run as described in Step E. Install support straps every5ft.(1.52m)alonghorizontal/inclinedvent runs using conventional plumber’s tape. See Figure 28. It is very important that the horizontal/inclined run be maintained in a straight (no dips) and recommended to be in a slightly elevated plane, in a direction away from the fireplace of 1/4" rise per foot (20 mm per meter) which is ideal, though rise per foot run ratios that are smaller are acceptable all the way down to at or near level. It is important to maintain the required clearances to combustibles: 1" (25 mm) at all sides for all vertical runs; and 3" (76 mm) at the top, 1" (25 mm) at sides, and 1" (25 mm) at the bottom for all horizontal/inclined runs. Use a carpenters level to measure from a constant surface and adjust the support straps as necessary. 19 NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE. SUPERIOR DIRECT-VENT GAS FIREPLACES • MODELS SLDVT-30/35/40/45 • INSTALLATION INSTRUCTIONS J. Assemble vent run to exterior wall - If not previously measured, locate the center of the vent at the exterior wall. Prepare an opening as described in Step B. Assemble the vent system to point where the terminus of the last section is located relative to the exterior surface to which the termination is to be attached as shown in Figure 30 and Table 8. If the terminus of the last section is not within this distance, use the telescopic vent section SV4.5LA, as the last vent section. For wall thicknesses greater than that shown in Figure 30, refer to Table 8 on Page 20. This Table lists the additional venting components needed (in addition to the termination and adaptor) for a particular range of wall thicknesses. K. Attach termination adaptor - Attach the adaptor (SV4.5RCH - provided with the termination) to the vent section or telescoping vent section), elbow or appliance collar as shown in Figure 29 in the same manner as any SV4.5 vent component (refer to Step E). L. Install Firestop/Spacer at exterior wall - When using the termination, install SV4.5HF (Secure Vent™), SF4.5HF (Secure Flex™) Firestop/Spacer over the opening at the exterior side of the framing, long side up, with the 3 inch spacer clearance at the top as shown in Figure 29, and nail into place. (The Firestop/Spacer may also be installed over the opening at the interior side of framing). M. Install the Termination (SV4.5HT-2 or SV4.5HTSS) For the last step, from outside the exterior wall, slide the collars of the termination onto the adaptor (the outer inside the outer and the inner outside the inner) until the termination seats against the exterior wall surface to which it will be attached. Orient the housing of the termination with the arrow pointed upwards. Secure the termination to the exterior wall. The horizontal termination must not be recessed into the exterior wall or siding by more than the 1-1/4" (32 mm) as shown in Figure 30. IMPORTANT: The vent termination is hot while in operation and for a period of time following the use of the fireplace. To prevent contact with hot surfaces, we recommend the use of a Termination Guard. See Page 37. This can be purchased at your local dealer. Horizontal terminations have been designed to perform in a wide range of weather conditions. Our terminations meet or exceed industry standards...

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