Napoleon GT8N Installation And Operating Instructions Manual

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16W415-0794 / D / 05.30.114.4.2 VERTICAL AIR TERMINAL INSTALLATIONA. Fasten the roof support to the roof using the screws provided. Theroof support is optional. In this case the venting is to be adequatelysupported using either an alternate method suitable to the authorityhaving jurisdiction or the optional roof support.B. Stretch the inner flex pipe to the required length. Slip theinner flex pipe a minimum of 2” over the inner pipe of the airterminal connector and secure with 3 #8 screws. Seal usinga heavy bead of high temperature sealant W573-0007 (notsupplied).C. Repeat using the outer flex pipe, using a heavy bead of hightemperature sealant W573-0002 (not supplied).D. Thread the air terminal connector / vent pipe assembly down through theroof. The air terminal must be positioned vertically and plumb. Attach theair terminal connector to the roof support, ensuring that the top of the airterminal is 16” above the highest point that it penetrates the roof.E. Remove nails from the shingles, above and to the sides of the airterminal connector. Place the flashing over the air terminal connectorleaving a min. 3/4” of the air terminal connector showing above thetop of the flashing. Slide the flashing underneath the sides and upperedge of the shingles. Ensure that the air terminal connector is properlycentred within the flashing, giving a 3/4” margin all around. Fasten tothe roof. Do not nail through the lower portion of the flashing. Makeweather-tight by sealing with caulking. Where possible, cover the sidesand top edges of the flashing with roofing material.F. Aligning the seams of the terminal and air terminal connector, place theterminal over the air terminal connector making sure the vent pipe goesinto the hole in the terminal. Secure with the three screws provided.G. Apply a heavy bead of weatherproof caulking 2” above the flashing.Install the storm collar around the air terminal and slide down to thecaulking. Tighten to ensure that a weather-tight seal between the airterminal and the collar is achieved.H. If more vent pipe needs to be used to reach the appliance see “HORIZONTAL AIRTERMINAL INSTALLATION” section.24.3ROOF SUPPORTINNER FLEX PIPEINNER PIPEHIGHTEMPERATURESEALANTAIRTERMINALCONNECTOROUTER FLEX PIPESTORMCOLLARFLASHINGCAULKINGWEATHERSEALANT2”AIR INLETBASEMAINTAIN A MINIMUM 2” SPACE BETWEEN THE AIR INLET BASE AND THE STORM COLLAR.! WARNING