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16
Installing the water heater
Complete the installation of the remainder of the
combustion air-inlet system and attach it to the
combustion air-inlet connector fitting on the water
heater’s combustion air-inlet tube assembly.
Support vertical and horizontal lengths of the vent
and combustion air-inlet systems as previously
mentioned.
Horizontal Vent and Combustion Air-Inlet Terminal Installation
continued -
-B-
d
.008
d
.010
Horizontal Vent and Combustion Air-Inlet Terminal Installation
Slope horizontal pipe
upward 1/8 in. per foot min.
Min 6 in.
2 ft. x 2 ft. Sheet Metal
Shield on Brick or Masonry
Walls (Optional for air inlet
termination)
Outside of
Building
Terminals with 1/2 in.
Mesh Protective Screens
Inside
Inside of
Building
Rear of Termination
Flush with Outside
of Wall
Exhaust Vent
Top Pan
Combustion
Air-Inlet
Wind Vane on
Combustion
Air-Inlet
Termination
Combustion
Air-Inlet
Vent Pipe
termination
Vent Connector Fitting
The illustration on the left is a enlarged
view of the elbow, "Wind Vane", and
screen assembly which must be installed on
the Combustion Air-Inlet Termination.
Wind Vane
90° Elbow
Screen
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