Aprilaire 8552 - Manual (Page 9)

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Step 1: Press and release the MODE button until the word
“HEAT” and the “ ” heating symbol appear on the display.
Step 2: Press and release the
PROGRAM button – “Mo Tu
We Th Fr”; Morning event
symbol “ ”;
flashing “12:” (or some
other hour); and flashing “AM” or “PM” will appear on the
display. You are now setting the time you want your heating
or cooling equipment to come on in the morning.
Step 3: Press the DECREASE button or INCREASE
button to set the desired hour for the Morning “ ” event.
Step 4: Press and release the PROGRAM button – “:00”
(or some other minutes) will flash.
the
eft
110-948 7/12/01 10:16 AM Page 9