W415-2197 / A / 09.14.1723ENA. Follow the instructions for "HORIZONTAL AIR TERMINAL INSTALLATIONS" section.B. Continue adding components alternating inner rigid pipe and outer rigid pipe. Ensurethat all inner rigid pipe and elbows have sufficient vent spacers attached and eachcomponent is sealed and securely fastened to the one prior. Attach the inner telescopicsleeve to the vent run. Repeat using the outer telescopic sleeve. Seal and secure asbefore. To facilitate completion, attach inner and outer couplers to the air terminal.C. Install the air terminal. See “HORIZONTAL AIR TERMINAL INSTALLATION” section.TELESCOPICSLEEVEVENTINGAIR TERMINAL20" (508mm)COUPLER48.1A4.3 using rigid vent componentsThe vent system must be supported approximately every 3 feet (0.9m) for both vertical and horizontal runs.Use Wolf Steel Ltd. support ring assembly or equivalent noncombustible strapping to maintain the minimumclearance to combustibles for both vertical and horizontal runs.All inner exhaust and outer intake vent pipe joints may be sealed using either red high temperaturesilicone sealant (W573-0002) (not supplied) or black high temperature sealant W573-0007 Mill Pac (notsupplied) with the exception of the appliance exhaust flue collar which must be sealed using Mill Pac.25.1AA. Move the appliance into position. Measure thevent length required between terminal andappliance taking into account the additionallength needed for the finished wall surfaceand any 1¼” (31.8mm) overlaps betweenventing components.B. Apply high temperature sealant W573-0007 Mill Pac(not supplied) to the outer edge of the inner exhaustfl ue collar of the appliance. Attach the first innerrigid pipe component and secure using a minimum of3 self tapping screws. Repeat using the outer rigid pipe.C. Insert the vent pipes through the fi restop maintaining the required clearance to combustibles. Holdingthe air terminal (lettering in an upright, readable position), secure to the exterior wall and makeweather tight by sealing with caulking (not supplied).The air terminal mounting plate may be recessed into the exterior wall or siding no greater than thedepth of the return fl ange.26.1ASCREWS#10x2"OUTERRIGIDPIPECAULKINGINNERRIGIDPIPESCREWSSELF DRILLING#8x1/2"1" (25.4mm)OVERLAPSEALANTHI-TEMP4.3.1 horizontal air terminal installation4.3.2 extended horizontal air terminal installation