Assessments - 3, GPA: 4.3
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Use Wolf Steel support ring assembly or equivalent noncombustible strapping to maintain the minimum clearance to combustibles for both vertical and horizontal runs. All inner exhaust and outer intake vent pipe joists may be sealed using either Red RTV high temp silicone sealant or Black high temp Mill Pac with the exception of the fireplace exhaust flue collar which must be sealed using Mill Pac (not supplied). HORIZONTAL AIR TERMINAL INSTALLATION 1. Move the fi replace into position. Measure the vent length required between terminal and fireplace taking into account the additional length needed for the finished wall surface and any 1." overlaps between venting components. FIGURE 27 2. Apply high temperature sealant W573-0007 (not supplied) Mill Pac to the outer edge of the 5" inner collar of the fireplace. Attach the first vent component and secure using 3 self tapping screws. Repeat using 8" piping. 3. The vent heat shield must be installed only when terminating horizontally. Remove the two screws nearest the vent collars on the top of the fireplace. Align the vent shield (supplied) and secure. Adjust the heat shield to touch the firestop spacer. 4. Holding the air terminal (with the air deflectors to the top), insert into both vent pipes with a twisting motion to ensure that both the terminal sleeves engage into the vent pipes and sealant. Secure the terminal to the exterior wall and make weather tight by sealing with caulking (not supplied). The air terminal mounting plate may be FIGURE 28 recessed into the exterior wall or siding by 1.", the depth of the return flange. EXTENDED HORIZONTAL AIR TERMINAL INSTALLATION 1. Follow the instructions for FIGURE 29 "Horizontal Air Terminal Installations", items 1 to 3. 2. Continue adding components alternating inner and outer venting. Ensure that all 5" venting and elbows have sufficient vent spacers attached and each component is securely fastened to the one prior. Attach the 5" telescopic sleeve to the vent run. Repeat using a 8" telescopic sleeve. Secure and seal as before. To facilitate completion, attach 5" and 8" couplers to the air terminal. 3. Install the air terminal. See item 3 of the Horizontal Air Terminal Installation. Extend the 5" telescopic sleeve; connect to the air terminal assembly. Fasten with self tapping screws and seal. Repeat using the 8" telescopic sleeve. W415-0381 / H / 12.07.07 VERTICAL VENTING INSTALLATION RESTRICTING VERTICAL VENTS VERTICAL VENTING INSTALLATION RESTRICTING VERTICAL VENTS 1. Move the fireplace into position. 2. Fasten the roof support to the roof using the screws provided. FIGURE 21. The roof support is optional. In this case the venting is to be adequately supported using either an alternate method suitable to the authority having jurisdiction or the optional roof support. 3. Apply high temperature sealant W573-0007 (not supplied) to the outer edge of the inner sleeve of the air terminal. Slip a 5" diameter coupler a minimum of 2" over the sleeve and secure using 3 screws. 4. Apply high temperature sealant W573-0007 (not supplied) to the outer edge of the of the outside sleeve of the air terminal. Slip a 8" diameter coupler over the sleeve and secure as before. FIGURE 25. Trim the 8" coupler even with the 5" coupler end. 5. Thread the air terminal pipe assembly down through the roof support and attach, ensuring that a minimum 16" of air terminal will penetrate the roof when fastened. FIGURE 23. If the attic space is tight, we recommend threading the Wolf Steel vent pipe collar or equivalent loosely onto the air terminal assembly as it is passed through the attic. FIGURE 29. The air terminal must be located vertically and plumb. 6. Remove nails from the shingles, above and to the sides of the chimney. Place the flashing over the air terminal and slide it underneath the sides and upper edge of the shingles. Ensure that the air terminal is properly centered within the flashing, giving a 3/4" margin all around. Fasten to the roof. Do NOT nail through the lower portion of the flashing. Make weather-tight by sealing with caulking. Where possible, cover the sides and top edges of the flashing with roofing material. FIGURE 23. FIGURE 30 FIGURE 29 7. Aligning the seams of the terminal and air terminal connector, place the terminal over the air terminal connector making sure the inner sleeve goes into the hole in the terminal. Secure with the 3 screws provided. 8. Apply a heavy bead of weatherproof caulking 2" above the flashing. Note: Maintain a minimum of 2" space between the air inlet base and the storm collar. Install the storm collar around the air terminal and slide down to the caulking. Tighten to ensure that a weather-tight seal between the air terminal and the collar is achieved. 9. Continue adding rigid venting sections, sealing and securing as above. Attach a 5" collapsed telescopic pipe to the last section of rigid piping. Secure with screws and seal. Repeat using a 8" telescopic pipe. 10. Run a bead of high temper...
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