Submittal Sheet
Page 5
Figure 2
Figure 3
d. Uncoil about 2 feet of the ¼” aluminum CK kit tubing (supplied with CK kit), and attach the straightened end to
the pressure port fitting on the back of the riser, using the supplied compression gland and nut (See Install 4).
5. Cut a square hole for the tailpiece through the wall to the minimum dimensions given in Table 5, “Installation Hole
Dimensions” (note that the tailpiece is offset from the actual termination).
6. Apply a bead of the supplied silicone sealant to the back of the top and sides of the riser section mounting flange, and
mount the power venter on the wall, making sure to pass the flexible conduit and pressure tubing through the wall,
and keeping the outer pipe centered in the hole (see Figure 2). Fasten the power venter to the outside wall with
stainless steel or galvanized lag screws (not included) or other appropriate fasteners. Flash and seal the edges of the
power venter mounting plate to the wall with exterior sealant as necessary to prevent water entry behind the riser. DO
NOT enclose the spaced plates on the power venter body. This will result in reduced cooling of the power venter
body. Wood or vinyl siding should be cut so that the unit mounts directly on the wallboard to provide a stable support.
If the siding is greater than 1/2" thick use a spacer plate or board behind the power venter mounting plate. (See
Figure 2)
7. Two-Piece Backing Plate Installation:
a. Position the Upper Backing Plate Half on the inside wall by placing the plate half on the inside wall and up to the
venter body, locating the air pressure sensing tube through the small slot in the plate half and the flexible conduit
through the larger slot, as shown in Figure 4. Install an appropriate fastener in the upper right corner hole in the
plate half. Note: if the wall is thicker than 11”, it may be necessary to enlarge the pressure sensing tube slot to
allow clearance for the tube union fitting.
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