Bradford White DS1-50S6FSX - Manual (Page 20)

20
Optional Vent-Air Intake System Installations continued-
Figure 15c
6. For a Single Telescopic Tube
Extend the five (5) inch (12.7 cm) diameter telescopic tube to its maximum
length. Place the large end of the five (5) inch (12.7 cm) diameter
telescopic tube over the collar on the outer wall mount plate. Drill three
(3) 1/8 inch diameter holes, 120
o apart, through the five (5) inch (12.7 cm)
diameter telescopic tube into the collar on the outer wall mount plate.
Fasten with three (3) #8 sheet metal screws (supplied). Using the
supplied RTV silicone sealant, apply a sufficient amount to seal the joint.
(See Figure 16a).
For Multiple Telescopic Tubes
Join the five (5) inch (12.7 cm) diameter telescopic tubes by inserting the
small end of a tube into the large end of another, one (1) inch (2.5 cm) (or
until seated). Drill three (3) 1/8 inch diameter holes, 120
o apart, through
each joint where the five (5) inch (12.7 cm) diameter telescopic tubes are
joined. At this time, DO NOT drill holes where the small and large
sections of the five (5) inch (12.7 cm) diameter telescopic tubes overlap.
Fasten each joint with three (3) #8 sheet metal screws (supplied). Extend
the joined five (5) inch (12.7 cm) diameter telescopic tubes to their
maximum length. Place the large end of the joined five (5) inch (12.7 cm)
diameter telescopic tubes over the collar on the outer wall mount plate.
Drill three (3) 1/8 inch diameter holes, 120
o apart, through the joined five
(5) inch (12.7 cm) diameter telescopic tubes into the collar on the outer
wall mount plate. Fasten with three (3) #8 sheet metal screws (supplied).
Using the supplied RTV Silicone sealant, apply a sufficient amount to seal
the joint. (See Figure 16b).