Manual Honeywell Chronotherm III - T8621 (page 2 of 24) (English)

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STEP 1

ENTER THE DAY AND TIME

You

can program this thermostai

either on the wall or in your

hand. SEE PAGE 27 TO FIND

OUT HOW TO REMOVE THE

THERMOSTAT FROM THE

WALL

Always press the keys with

your

fingertip or similar blunt tool.

Sharp instruments like a pen or

pencil point can damage the

keyboard.

NOTE: Check the glossary, page

31, for definitions of unfamiliar

words.

STEP 2

SET THE PROGRAM TIMES

AND TEMPERATURES FOR

ONE DAY

Before You Begin.

The schedule form on page 33

provides an opportunity to plan

your daily program.

Now.

Choose a day to program first.

We’ll use Monday in the exam-

ples, but you can start with any

day. Start by programming the

MORNING time and tempera-

tures. The thermostat requires a

MORNING program every day.

You can set additional programs

as desired.

SET

Press and release. The display

PRESENT

DAY/TIME

shows 1:00 PM Mon.

Press and hold until the current

day appears in the display.

TIME

Press and hold until the current

time appears in the display. Be

sure AM or PM appears as

:’

desired.

You have set the current day and

time. Go on to Step 2.

pii-]

[-7$X-=]

m¶

Press and release. Note that the

‘..

display shows MORNING and

the preprogrammed time and

temperature.

If the display reads COOL, press

and release to switch to HEAT.

Press and hold until MONDAY

(or the desired day) appears in

the display.

Press and hold until the

display

shows the time you want the

temperature at the comfort

setting.

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Honeywell Chronotherm III - T8621 Manual

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