Aprilaire 8555 Owner's Manual page 28

110-793B 7/11/01
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:
3:29 PM Page 28
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,
in place.
– 26 –
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