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Square termination (SV4.5HT) shown. See Table 3 as an aid in venting component selection for a particular range of exterior wall thicknesses. See Table 3 as an aid in venting component selection for a particular range of exterior wall thicknesses. VERTICAL OR HORIZONTAL VENTING USING SECURE FLEX KITS AND COMPONENTS VERTICAL OR HORIZONTAL VENTING USING SECURE FLEXKITS AND COMPONENTS Secure Flex kits may not be modified; also, under no circumstances may separate sections of flex pipe be joined together. Using adapter (SV4.5RF), Secure Flex kits may be added to the end of a vent run made up of rigid Secure Vent (SV4.5) vent sections provided that doing so does not violate any of the venting length, height, routing, horizontal to vertical ratio requirements or clearance considerations detailed in this manual. Secure Flex kits come with an adapter that can be fitted to the inclined channel end of the last Secure Vent (SV4.5) vent section in a rigid system in the exact same fashion as any other Secure Vent section. Align the dimpled end of the adapter over the previously installed section or appliance collar, adjusting the radial alignment until the four locking dimples of the adapter are aligned with the inlets of the four incline channels of the last vent section or collar. Push on the adapter until it fully engages, then twist the adapter clockwise running the dimples down and along the incline channels until they seat at the end of the channels. Attach the flexible vent to the adapter as follows (also see Figure 47 ): A. Install the Inner Flex Pipe 1. Install the small gear clamp loosely around the inner flexible vent pipe, push it back out of the way. 2. Apply a bead of Mill-Pac Black (700°F) high temperature sealant - Catalog No. 10K81) to the inner adapter collar, approximately ... inch from the end. 3. Pull and extend the inner flexible vent pipe. 4. Slide the inner flex pipe over the adapter collar. Ensure the flexible vent pipe completely engages the adapter collar to a distance of 1... inches from the end, and that it is free from damage or tears. 5. Slide the gear clamp down and tighten it fully to secure the flexible vent to the adapter inner collar approximately ... inch from the end of the flex. 6. Installthree screws 120 degrees apartthrough the flexible vent pipe and into the adapter collar just below the gear clamp to provide additional security to the connection. B. Install the Outer Flex Pipe 1. Install the large gear clamp loosely around the outer flexible vent pipe, push it back out of the way. 21NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. See the appropriate sections and figures shown throughout the venting section for their installation requirements. GEAR CLAMPS Adapter (SV4.5RF) Apply ONLY MIL-PAC BLACK HIGH TEMPERATURE SEALANT (Catalog No. 10K81) to the outside surface of both collars of the adapter (be especially careful to fill the grooves of the outer collar to be covered by the flexible pipe) and slide flexible pipe over inner and outer adapter collars. NOTE: OUTER PIPE IS PULLED AWAY TO SHOW THE DETAIL OF THE INNER PIPE FLEX VENT 1... in. (44 mm) Flexible Pipe and Adapter Outer Collar Overlap 1... in. (44 mm) Flexible Pipe and Adapter Inner Collar Overlap SECURING SCREW (3 PLACES EQUIDISTANT JUST BELOW GEAR CLAMP) Attach Adapter to ApplianceCollar, or Secure Vent Sections SECURING SCREW (3 PLACES EQUIDISTANT JUST BELOW GEAR CLAMP) 5" (127 mm) Radius Minimum Flexible Vent Section Figure 48 Figure 47 2. Apply a bead of Mill-Pac Black (700°F) high temperature sealant - Catalog No. 10K81) to the outer adapter collar; to the grooves of the collar which extend approximately 1 inch from the end and to the flat surface, approximately 1... inches from the end. 3. Pull and extend the outer flexible vent pipe. 4. Slide the outer flex pipe over the adapter collar. Ensure the flexible vent pipe completely engages the adapter collar to a distance of 1... inches from the end, and that it is free from damage or tears. 5. Slide the gear clamp down and tighten it fully to secure the flexible vent to the adapter outer collar approximately ... inch from the end of the flex. 6. Install three screws 120 degrees apart through the flexible vent pipe and into the adapter collar just below the gear clamp to provide additional security to the connection. C. Route Flex Vent Ensure that the flex vent is properly routed to provide the required clearance. Do not allow the flexible vent to bend in a radius tighter than 5" (127 mm). Refer toFigure 48. Space out the internal flex vent spacers evenly - approximately every 6 inches - and avoid kinking of inner pipe. Support horizontal sections of flex with metal straps at 2 foot (0.61m) intervals. D. Install Firestop/Spacers at ceilings and walls When Secure Flex penetrates a wall or ceiling, a firestop/spacer is required: use the SF4.5 VF firestop/spacer for ceilings and the SF4.5 HF firestop/spacer for walls. Note: Secure Flexvent must be attached to Secure Flexter...

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