Setting Or Changing The Clock - Aprilaire 8555 Owner's Manual

110-793B 7/11/01
IMPORTANT: READ ALL INSTRUCTIONS THOROUGHLY
Programming your Aprilaire Thermostat is done in three easy steps: setting the clock, setting the event
times, and setting your desired temperatures.
3:29 PM Page 5

Setting Or Changing The Clock

Step 1: Press the CLOCK button and "Mo"
(or another day of the week) will flash. Use the
DECREASE or INCREASE
change the flashing symbol to the current day
of week.
– 3 –
button to