Assessments - 2, GPA: 3.5
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If venting system is installed below ground, we recommend a window well with adequate and proper drainage to be installed around the termination area. If installing a snorkel, a minimum 24" vertical rise is necessary. The maximum horizontal run with the 24” vertical pipe is 36". This measurement is taken from the collar of the fireplace (or transition elbow) to the face of the exterior wall. Refer to the Sidewall Venting Graph for extended horizontal run if the vertical exceeds 24". 1. Establish vent hole through the wall. Refer to Page 18, Figure 17 2. Remove soil to a depth of approximately 16" below base of snorkel. Install drain pipe. Install window well (not supplied). Refill hole with 12" of coarse gravel leaving a clearance of approximately 4" below snorkel. Figure 28 3. Install vent system. 4. Ensure a watertight seal is made around the vent pipe coming through the wall. 5. Slide the snorkel into the vent pipes and secure to the wall. 6. Level the soil so as to maintain a 4" clearance below snorkel. Figure 28 If the foundation is recessed, use recess brackets (not supplied) for securing lower portion of the snorkel. Fasten brackets to wall first, then secure to snorkel with self drilling #8 x 1/2" sheet metal screws. It will be necessary to extend vent pipes out as far as the protruding wall face. Figure 28 WARNING • Do not back fill around snorkel. • A clearance of at least 4” must be maintained between the snorkel and the soil. FP1966snorkel Screws FP1965below grade install Firestop Snorkel Minimum 4" Clearance Foundation Recess Ground Wall Screws Window Well 24" Minimum Gravel Watertight Seal Around Pipe Sheet Metal Screws Drain Foundation Wall FP1966 Figure 29 - Snorkel Installation, Recessed Foundation FP1965 Figure 28 - Below Grade Installation ventING installation vertical through-the-roof applications This Gas Fireplace has been approved for, • Vertical installations up to 40' (12 m) in height. Up to a 10' (3 m) horizontal vent run can be installed within the vent system using a maximum of two 90° elbows. Figure 28 FP2308support straps 10' Maximum 10' Maximum 40' Maximum Height 8' Minimum Height 40' Maximum Height 8' Minimum Height Support Straps Every 3' Support Straps Every 3' FP2308 Figure 30 - Support Straps for Horizontal Runs 12341234FP2309max elbow use A • Up to two 45° elbows may be used within the horizontal run. For each 45° elbow used on the horizontal plane, the maximum horizontal length must be reduced by 18" (450 mm). Example: Maximum horizontal length No elbows = 10’ (3 m) 1 x 45° elbows = 8.5’ (2.6 m) 2 x 45° elbows = 7’ (2.1 m) • A minimum of an 8' (2.5 m) vertical rise is required. • Two sets of 45° elbows offsets may be used within the vertical sections. From 0 to a maximum of 8' (2.5 m) of vent pipe can be used between elbows. Figure 31 • The maximum angular variation allowed in the system is 270°. Figure 31 • The minimum height of the vent above the highest point of penetration through the roof is 2' (610 mm). Example: Elbow 1 = 90° Elbow 2 = 45° Elbow 3 = 45° Elbow 4 = 90° Total Angular Variation = 270° Figure 31 - Maximum Elbow Usage FP2309 ventING installation installation for vertical termination FP1969offset w/ wallstrap 1. Determine the route your vertical venting will take. If ceiling joist, roof rafters or other framing will obstruct the venting system, consider an offset. Refer to Figure 32 to avoid cutting load bearing members. NOTE: Pay special attention to these installation instructions for required clearances (air space) to combustibles when passing through ceilings, walls, roofs, enclosures, attic rafters, etc. Do not pack air spaces with insulation. Also note maximum vertical rise of the venting system and any maximum horizontal offset limitations. Offsets must fall within the parameters shown on Page 20, Figure 22. 2. Set fireplace in desired location. Drop a line plumb down from the ceiling to the position of the flue exit. Mark the center point where the vent will penetrate the ceiling. Drill a small locating hole a this point. Drop a plumb line from the inside of the roof to the ceiling locating hole in the ceiling. Mark the center point where the vent will penetrate the roof. Drill a small locating hole at this point. flat ceiling installation 1. Cut a 9Z\x" (241 mm) square hole in the ceiling using the locating hole as a center point The opening should be framed to 9Z\x" x 9Z\x" (241 x 241 mm) inside dimensions as shown in Figure 33 using framing lumber the same size as the ceiling joist. If the area above the ceiling is an insulated ceiling or a room, nail firestop from the top side. This prevents loose insulation from falling into the required clearance space. Figure 33. Otherwise, install firestop below the framed hole. 2. Assemble the desired lengths of pipe and elbows necessary to reach from the burner system flue up through the firestop. Be sure pipe and elbow connections are fully twist-locked. Page 18, Figure 18 3. Cut a hole in the roof usi...
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