Programming the thermostat – Honeywell CHRONOTHERM T8621A User Manual
Page 19
19
68-0058—1
T8621A,C,D
CHECKOUT • PROGRAMMING THE THERMOSTAT
Cycle Rate Setting
(cph at 50% on time for stage
First
1 on 1-heat models, stage
Digit
2 on 2-heat models)
0
1
1
3
2
9
3
6
Third
Manual or Auto
System Switch
Digit
Changeover
Position
0
Manual
HEAT or OFF
1
Auto
HEAT or OFF
3
Auto
AUTO
4
Manual
COOL
5
Auto
COOL
Second
Stages of
Digit
Heat
Cool
0
2
1
1
2
2
2
1
1
3
1
2
4
0
2
5
1
0
6
2
0
Fourth
Clock
System Switch
Digit
Degrees
(hrs)
Position
0
F
12
COOL, AUTO
or OFF
1
F
24
COOL, AUTO
or OFF
2
F
12
HEAT
3
F
24
HEAT
4
C
12
COOL, AUTO
or OFF
5
C
24
COOL, AUTO
or OFF
6
C
12
HEAT
7
C
24
HEAT
Programming the Thermostat
STEP 1
ENTER THE DAY AND TIME
This thermostat can be programmed
either on wall or in hand. See page 8 to
find out how to remove the thermostat
from the subbase.
Always press the keys with fingertip
or similar blunt tool. Sharp instruments
like a pen or pencil point can damage
the keyboard.
NOTE: Check the glossary, page 30
for definitions of unfamiliar
words.
Press and release. The display shows
1:00 PM Mon.
Press and hold until the current day
appears in the display.
Press and hold until the current time
appears in the display. Be sure AM or
PM appears as desired.
This completes setting the current day
and time. Go on to Step 2.
PM
TUE
PM
MON
PM
TUE
DAY
TIME
AHEAD
BACK
SET
PRESENT
DAY/TIME