Assessments - 4, GPA: 4.5
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See Figure 53. NOTE: Remove insulation from the framed area in the attic before installing the firestop and/or vent pipes. 25613-0-0309 Page 33 FRAMING AND FINISHING (continued) FRAMING AND FINISHING (continued) EXISTINGCEILINGJOISTSNEWFRAMINGCEILINGBELOWBANAILS,4REQUIREDCEILINGFIRESTOPAB Vent Size A B 6 5/8" 10" 10" 8" 10 1/2" 10 1/2" Vent Size A B 6 5/8" 10" 10" 8" 10 1/2" 10 1/2" Figure 51 Figure 53 ABNAILS,4REQUIREDCEILINGFIRESTOPSee Horizontal Termination Page 35 and Vertical Termination Pages 37 and 38. Vent Size A B 6 5/8" 10" 10" 8" 10 1/2" 10 1/2" Figure 52 Page 34 25613-0-0309 HORIZONTAL TERMINATION HORIZONTAL TERMINATION NOTE: Termination cap should pass through the wall firestop from the exterior of the building. Adjust the termination cap to its final exterior position on the building. Warning: Termination cap must be positioned so that arrow is pointing up. Attach the termination cap with the four wood screws provided. Before attachment of the termination, run a bead of silicone sealant rated above 250°F on its outside edge too, so as to make a seal to the exterior wall. NOTE: Wood screws can and should be replaced with appropriate fasteners for use on stucco, brick, concrete or other types of siding. CAUTION: If exterior walls are finished with vinyl siding, (or materials that could become discolored or warp) it is necessary to install a vinyl siding standoff. The vinyl siding standoff will be installed between the vent termination and the exterior wall. See Figure 54.Thishorizontalvent termination bolts onto the flat portion of the vinyl siding standoff, so an air space will exist between the wall and the termination cap. BOLT(4REQUIRED) VENTTERMINATIONWOODSCREWS(4REQUIRED) NUT(4REQUIRED) CUTVINYLSIDINGAWAYTOFITSTANDOFFFigure 54 25613-0-0309 Page 35 Page 36 25613-0-0309 INSTALLATION 1. Unpack vent components and check that all items are included. 2. Check to see that the vent spacer springs are located around the flue vent at 8" and 12" intervals along its length. See Figure 55. If not, stretch the spacer springs to about 15" long and wrap them around the flue, then interlock the ends of each spring about 2". See Figure 56. Maintain equal distance between spring spacers. 3. Use existing 8" diameter inlet collar to attach outer vent pipe. 4. Install the Wall Firestop/Thimble assembly as required through the wall. Refer to the venting charts in the fireplace manual to determine the proper height and size of the vent opening. The minimum opening should be 10" wide by 12" high. The minimum combustible clearance from the horizontal vent is 1" from sides and bottom, and 3" above the vent pipe. See Figure 56. 5. In most cases, after determining the length of the vent that is needed, it may be easier to install the flue and outer vent pipes to the Termination Cap first, then from the outside, feed the venting through the wall to the fireplace. 6. If the venting is to long, trim off any excess vent before attaching the vent end connectors. 7. Attach the Termination Cap to the outside of the house. 8. Prior to making the vent connections, apply high temperature sealant (1000 degree F min.) to the vent connections before securing with the band clamps provided. Note: the flue pipe end without the adapter is to be installed to the Termination Cap. 9. Apply sealant to the outside of the flue pipe adapter and connect to the flex flue pipe. Then insert the adapter into the fireplace flue. Secure flue adapter to the fireplace flue with a minimum of two screws provided. See Figure 57. 10. Attach the Outer Vent pipe to the 8" diameter collar on the fireplace with a large band clamp provided. Sealant may also be used on the outer vent connections. 11. Check all vent connections for tightness. Make sure horizontal venting has the proper rise and combustible clearances required. Refer to venting charts in fireplace instruction manual. 8” DIA. FLEX VENT PIPE 5” DIA. FLEX FLUE PIPE 5” DIA. FLUE ADAPTOR COLLAR 8” DIA. INLET ADAPTOR COLLAR (WITH GASKET) BAND CLAMP APPLY HIGH TEMPERATURE SEALANT Flex venting can only be installed vertically off of the DVX Series fireplaces. When installing a horizontal vent run from top connections, maintain at least ." rise for every 12" of vent run. Refer to the Figure 54 when mounting termination near vinyl siding. CAUTION: Always stretch and secure venting with wire or metal strapping to ensure that the horizontal runs do not sag. If space permits, it is generally easier to attach venting in the top vent configuration. Because of sharp edges, always use gloves when handling the flex vent components. Vent connections should overlap a minimum of 1" for proper sealing. Always follow the general venting requirements for vent terminal location, vent lengths, and clearance to combustible materials. Figure 55 Figure 57 The DVVK-5F FLEX VENT KIT includes the following components: Figure 58 Figure 56 DVVK-5F FLEX VENT INSTRUCTIONS • (1) Horizontal Termination Cap • (1) 4-foot section of Fl...
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