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AP18733 REV. 3.2.17
33
3. Screen Installation
After connecting the intake air and exhaust vent pipes, it is required to install the included screens into the exhaust vent and intake pipe
terminations to prevent damages to the unit due to blockages. See Figure 11 for installation detail.
Screens can freeze in areas with severe cold weather. In such areas it is recommended not to use screens.
Figure 10 – Direct Vent, Vent Terminations (With Optional Kits)
WARNING
FOR YOUR SAFETY
All vent pipes must be glued, properly supported, and the exhaust must be pitched a minimum of ¼" (0.6 cm) per foot back to the appliance to
allow drainage of condensate. When placing support brackets on vent piping, the rst bracket must be within 1 foot (30 cm) of the appliance and
the balance at 4 foot (1.22 m) intervals on the vent pipe. Appliance venting must be readily accessible for visual inspection for the rst three feet
from the appliance.
Do not connect any other appliance vents to the water heater exhaust vent or intake pipes.
Figure 11 - Screen Installation - NOTE: Vent termination elbow is meant to be installed open end facing
the ground. Orientation in Figure 11 is meant to demonstrate proper Vent Screen installation ONLY.
(7.6CM) (0.6CM)
3″ Vent Screen 1/4″ Mesh
*Stating tee tting requires
a screen at both ends.
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