American Water Heater DIRECT VENT GAS WATER HEATER Installation And Operating Instruction Manual page 18

American water heater co direct vent gas water heater installation and operating instruction manual
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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 three (3) inch (7.6 cm) diameter elbow into
the flue reducer until firmly seated and oriented in the correct direction.
With a 1/8 inch diameter drill bit (not supplied), drill three (3) holes, 120
apart, through the flue reducer into the three (3) inch (7.6 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 8).
6. Place the straight end of the five (5) inch (12.7 cm) diameter elbow over
the three (3) inch (7.6 cm) diameter elbow and plenum collar until seated
on top of the plenum box. Make certain that the five (5) inch (12.7 cm)
diameter elbow is oriented in the same direction as the three (3) inch
(7.6 cm) diameter elbow and both are oriented in the correct direction.
Drill three (3) 1/8 inch diameter holes, 120
inch (12.7 cm) diameter elbow into the plenum collar. Fasten with three
(3) #8 sheet metal screws (supplied) (See Figure 9).
Figure 8
o
apart, through the five (5)
18
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