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Re-secure the lintel to the rear wall of the firebox. WARNING Failure to reinstall and securely tighten cover plate screws could result in leakage of flue products into the living space. Vent cover plate and vent seal plate must remain securely installed on unused vent collar. Failure to do so could result in leakage of flue products into living space. Cover Plate Securing Screws Top Vent Vent Seal Plate Firebox Top (Inside of Appliance) Figure 15 Top Vent Seal & Cover Plate Removal When Using The Top Vent (OUTSIDE of Appliance) Securing ScrewsCabinet Top CROSS SECTION Vent Cover Plate Gasket Figure 16 Rear Vent Seal & Cover Plate Removal When Using The Rear Vent Gasket Lintel Securing Screws Rear Vent Lintel (OUTSIDE of Appliance) (INSIDE of Appliance) CROSS SECTION Securing Screws Vent Seal Plate Cabinet Back Cover Plate Securing Screws Installation of Vent Restrictor A vent restrictor may be needed with this appliance, install vent restrictor (provided) in the appliance flue outlet as shown in Figure 17 or 18. It is held in place by friction, only. NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE. Vent Restrictor Installation (Top Vent) A vent restrictor may be needed when vertically terminatingtheventsystemabovetheroof( whenusing the appliance top vent), install vent restrictor in the top vent of the fireplace outlet. If needed, install the restrictor orientated as shown, either from inside or outside the unit,in the inner fireplace collar. Appliance Top Restrictor Inner Fireplace Collar Vent Outlet Figure 17 VENT RESTRICTOR INSTALLATION (REAR VENT) A vent restrictor may be needed when horzontally terminating the vent system from the rear of the appliance (when using the appliance rear vent), install ventrestrictorintherearventofthefireplaceoutletin any installation that has a vertical vent run in excess of three feet (0.914 meters). If needed, install the restrictor orientated as shown, either from inside or outside the unit, in the inner fireplace collar Inner Fireplace Appliance Rear Collar Vent Outlet Restrictor Figure 18 Select Venting System - Horizontal or Vertical Withtheappliancesecuredinframing,determine vent routing and identify the exterior termination location. The following sections describe vertical (roof) and horizontal (exterior wall) vent applications.Refertothesectionrelatingtoyour installation. A list of approved venting components is shown on Pages 33 through 35. VERTICAL TERMINATION SYSTEMS (ROOF) VERTICAL TERMINATION SYSTEMS (ROOF) Both these vertical vent systems terminate through the roof. The minimum vent height above the roof and/or adjacent walls is specified in ANSI Z223.1( latest edition) (In Canada, the current CAN-1 B149 installation code) by major building codes. Always consult your local codes for specific requirements. A general guide to follow is the Gas Vent Rule (refer to Figure 4B on Page 6). A vent restrictor may need to be installed when vertical termination is used. See Installation of Vent Restrictor on Page 12 for guidelines. Vertical (Straight) Installation Determine the number of straight vent sections required. 4-1/2" (114 mm), 10-1/2" (267 mm), 22-1/2" (572 mm), 34-1/2" (876 mm) and 46-1/2" (1181 mm) net section lengths are available (see Table 7 and Page 33 - Item 3). It is recommended that you plan the vent lengths so that a joint does not occur at the intersection of ceiling or roof joists. Refer to the Vent Section Length Chart. Figure 19 SV4.5CG V-1 T ermination SV4.5F A OR SV4.5FB Flashing AND SV4.5SC STORM COLLAR .SV4.5VF Firestop/Spacer SV4.5L6/12/24/36/48 V ent Sections 40' Ma x (12.2 M) 1" (25.4 mm) Minimum Clearance to Combustibles .When using Secure Flex use Firestop/Spacer SF4.5VF 441211 0 0 0 3 4 0515.210 1 0 0 3 4 5.451578.211 1 0 0 3 5 5.061573.310 2 0 0 3 5 5.271573.410 0 0 5 0 5 77157.411 0 0 5 0 6 38152.510 1 0 5 0 6 6815.510 0 0 0 4 4 5.091578.511 0 0 0 4 5 5.691573.610 1 0 0 4 5 5.502521.710 1 1 5 0 7 70252.710 0 0 6 0 6 5.112526.711 0 0 6 0 7 5.712521.810 1 0 6 0 7 5.922521.910 0 1 6 0 7 5.232573.910 0 0 0 5 5 73257.911 0 0 0 5 6 5.142521.020 0 0 7 0 7 6425.021 0 0 7 0 8 252120 1 0 7 0 8 462220 0 1 7 0 8 672320 0 0 8 0 8 97252.320 0 0 0 6 6 5.082573.321 0 0 8 0 9 5.382526.321 0 0 0 6 7 5.982521.420 1 0 0 6 7 5.103521.520 0 1 0 6 7 5.013578.520 0 0 9 0 9 5135.621 0 0 9 0 015.523521.720 0 0 0 7 7 0335.721 0 0 0 7 8 633820 1 0 0 7 8 54357.820 0 0 010 015.943521.921 0 0 010 11273130 0 0 0 8 8 5.673573.131 0 0 0 8 9 5.973526.130 0 0 110 115.814578.430 0 0 0 9 9 32452.531 0 0 0 9 0156457.830 0 0 0 0101VENT SECTION LENGTH CHART Nominal Section Length (inches) 6 12 24 36 48 Net Section Length (inches) 4 . 10 . 22 . 34 . 46 . Height of Vent Number of Vent Sections *inches feet T O T A L Q T Y 5.4573.01 0 0 0 0 1 9 57.02 0 0 0 0 2 5.01578.00 1 0 0 0 1 5152.11 1 0 0 0 2 5.91526.12 1 0 0 0 3 1257.10 2 0 0 0 2 5.22578.10 0 1 0 0 1 5.52521.21 2 0 0 0 3 5.13526.20 3 0 0 0 3 5.43578.20 0 0 1 0 1 5.73521.31 1 1 0 0 3 5.34526.30 2 1 0 0 3 5457.30 0 2 0 ...

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