A.O. Smith XDVS User Manual

Page 13

12. Place the water heater at the opening in the wall, at the

predetermined clearance.

FIGURE 45

13. Move outdoors with all the remaining vent parts. Using the

tube of sealant supplied, run an ample amount on the inside
surface of the collar assembly that will contact the exterior wall
and also fill the bead on the end of the 6” diameter vent collar.

FIGURE 46

14. Install the vent collar assembly through the wall,

connecting it to the extension and/or elbow (depending on
which one was used).

FIGURE 47

15. Four wood screws are supplied to temporarily attach the

collar to the exterior wall of the building. However, other
types of screws may have to be substituted depending on
the construction of the exterior wall.

FIGURE 48

16. Insert the 3” diameter flue extension pipe into the vent

collar assembly (flared & notched end first) and lock (turn
clockwise to lock studs to slots) the flue extension pipe to
the flue elbow.

FIGURE 49

17. Connect the vent cap by sliding its end over the 3” diameter

extension pipe and O-ring.

NOTE: To facilitate ease of assembly of the vent cap to the
3” pipe, a soap solution can be applied to the O-ring
gasket.

FIGURE 50

18. The vent cap has 4 holes around the outer edge. Remove

the 4 screws used to temporarily attach the collar to the
exterior wall. Then secure the vent cap assembly with the
vent collar assembly to the exterior wall using the same 4
screws.

NOTE: Screws are supplied; however, substitution may be
necessary depending on the exterior wall material.

CAUTION

To prevent unlocking the previously installed 3” diameter
extension, the vent cap assembly must be rotated in a
clockwise motion when the vent cap is installed.

19. Go back indoors to attach inside collar to the inside wall.

Place the collar against the wall. Secure to wall by using 4
long sheet metal screws.

NOTE: Screws are supplied; however, substitution may be
necessary depending on the interior wall material.

FIGURE 51

20. Using the tube of sealant supplied, run an ample amount

of sealant around the edge of the vent pipe where it is
inserted through the inside collar to seal air drafts from
wall.

FIGURE 52