Aprilaire 8554 - page 28

Once the thermostat panel has been opened and removed from the base, turn the thermostat over
and locate the DIP switches found on the circuit board according to the following drawing:
Be careful to change only the intended DIP switches per the explanation given at the beginning of
this section.
After the DIP switches have been set to the desired
position, carefully reassemble the thermostat.
a) Place the cover on the
base by lining up the 2
round pegs on the
bottom of the cover
with the half circle
cutouts on the top of
the base. Note that
the bottom of the
cover when fully open
slides in behind the top
of the base. Swing the
cover fully open. The
cover will stay in place.
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