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Installation (Vent-Air Intake System Installation) continued-
IMPORTANT
The following instructions detail the installation of the standard
horizontal vent-air intake kit supplied with the water heater.
5. Insert the straight end of the four (4) inch (10.2 cm) diameter elbow into
the flue reducer until firmly seated and oriented in the correct direction.
With a 1/8 inch (3.2 mm) diameter drill bit (not supplied), drill three (3)
holes, 120
o
apart, through the flue reducer into the four (4) inch (10.2
cm) diameter elbow. Fasten with three (3) #8 sheet metal screws
(supplied). Using the supplied special RTV silicone sealant, apply a
sufficient amount to seal the joint (See Figure 9).
Figure 9.
6. Place the straight end of the six (6) inch (15.2 cm) diameter elbow over
the four (4) inch (10.2 cm) diameter elbow and plenum collar until seated
on top of the plenum box. Make certain that the six (6) inch (15.2 cm)
diameter elbow is oriented in the same direction as the four (4) inch
(10.2 cm) diameter elbow and both are oriented in the correct direction.
Drill three (3) 1/8 inch (3.2 mm) diameter holes, 120
o
apart, through the
six (6) inch (15.2 cm) diameter elbow into the plenum collar. Fasten with
three (3) #8 sheet metal screws (supplied) (See Figure 10).
19