Cleaning The Air Inducer Stirring Fan - American Standard 50A65-475 Manual

Direct Vent Manifold Pressure Check
Correct Method of Checking Direct Vent Manifold Pressure with Burner Box Referenced
See
Inset

Cleaning the Air Inducer Stirring Fan

This opening is for the Inducer Controller Air Stirring Fan which circulates
air over the inducer control board. The Fan and opening should be cleaned
annually. Shut the power off to the furnace. Use a vacuum cleaner to pick
up any lint or dust which may have accumulated in the opening. Then
brush the Fan and opening lightly with a soft brush while using the vacuum
to pick up any loosened lint or dust.
Separate the tube
at the tee and
reconnect with a
short piece of field-
supplied tube and
another tee with
the "U" manometer
attached.
Be sure to reconnect
burner box tubing
to original position
after testing the
manifold pressure!
Field-supplied barb fitting
with manometer tube is
attached to the "Outlet
Pressure Tap" on the outlet
side of the gas valve.
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