Crown Boiler PHNTM080 - Page 47

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FIGURE 7.34: INSTALLATION OF IPEX AND DIVERSITECH CONCENTRIC TERMINAL THROUGH ROOF
e. Cement the outer pipe to the Wye, being careful, to keep the inner and outer pipes concentric.
f. Slip the partially assembled terminal through the wall or ceiling from the inside and for horizontal installations
orient so that the side outlet on the Wye is on or above the horizontal plane.
g. For horizontal installations, seal the gap between the OD of the “outer pipe” and the exterior side of the wall with
RTV sealant.
h. Cement the rain cap onto the inner pipe. If desired, the rain cap can be attached to the inner pipe with the supplied
stainless steel screw and nut so that it can be later removed for cleaning and inspection. If this is done, drill a
3/16”clearance hole in the rain cap and inner pipe in the location shown on Figure 7.32 for the size terminal kit
beingusedandafxscrewandnut.Donotovertighten.Aeldsuppliedrodentscreenmayalsoinstalledontheend
of the rain cap.
i. Forverticalinstallations,usearoofashingandstormcollartopreventmoisturefromenteringthebuilding.Seal
theroofashingtotheroofusinggenerallyacceptedpracticeforthetypeofroofontheinstallation.Installthestorm
collar after verifying that the bottom of the rain cap will be at least 12” above the normal snow line. Apply RTV to
seal the storm collars to the terminal.