Carrier Comfort series User manual

Comfort tNon-Programmable Owner's Manual

1
YOU WILL LOVE THIS THERMOSTAT.
This Comforttnon−programmable thermostat is an easy to
use model that provides the most sought−after features for
keeping your home comfortable. And with a slim profile, it
is designed to be as smart – and smart−looking – as any of
the other electronics in your home. Let this manual show you
how easy it is to enjoy the newest experience in home com-
fort.
Designed and Assembled in the U.S.A.
NOTE: Read the entire instruction manual before starting the installation.

2
TABLE OF CONTENTS
BUTTON IDENTIFICATION 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ON−SCREEN INDICATORS 6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OPERATING THE THERMOSTAT
Setting the temperatures for heating and cooling 8
. . . . . . . . . . . . . . . . . . . . . . . .
Using the fan 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using emergency heat (heat pump systems only) 10. . . . . . . . . . . . . . . . . . . . . .
Installing or replacing the batteries 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the thermostat to turn the heating and cooling system off 14. . . . . . . . . .
Auto changeover 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADVANCED OPTIONS
Advanced options display codes chart 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing from Fahrenheit to Celsius 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turning on the continuous backlighting 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keypad lockout 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unlocking the keypad 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3
TABLE OF CONTENTS
WHAT IF . . .
The battery icon is displayed 20
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
“Aux heat on” is displayed (heat pump systems only) 20. . . . . . . . . . . . . . . . . .
“Em heat” is displayed (heat pump systems only) 20. . . . . . . . . . . . . . . . . . . . . .
There is a power outage 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
You get a system error message 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMMON TERMS AND WHERE TO FIND THEM
Auto changeover 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Auxiliary heat (heat pump systems only) 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Backlighting 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Emergency heat (heat pump systems only) 22. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mode 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WARRANTY 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4
BUTTON IDENTIFICATION
b
a
c
d

5
BUTTON IDENTIFICATION
a. FAN Selects whether the fan operates continuously (on) or only when
needed for heating or cooling (auto)
b. MODE Selects whether thermostat is set for heating, cooling, emergency
heat (heat pump system only), auto (heat and cool as needed), or
off
c. UP Increases the temperature or adjusts the screen selection up when
setting advanced features
d. DOWN Decreases the temperature or adjusts the screen selection down
when setting advanced features

6
ON−SCREEN INDICATORS
actual temp
o
Em
heat
aux
heat
on
fan
auto
fan
on
F
C
cool
on2
set at
4
2
3
1
5
7
6
8
9
10

7
ON−SCREEN INDICATORS
1. Fan mode – on or auto
2. System is in auxiliary (supplemental) mode
3. Current temperature
4. Thermostat mode is either off or using emergency heat
5. Fahrenheit
6. Keypad is locked (no padlock means unlocked)
7. Celsius
8. Battery strength indicator
9. Selected cooling set point; “on” indicates system is in cooling mode
10. Second stage of cooling is active

8
OPERATING THE THERMOSTAT
Setting the temperatures for heating and cooling
Your thermostat is installed with the heating set at 68°F and the cooling set at
72°F. You can use these or change them so your home is as warm or as cool as
you would like it to be. These steps will hold the temperature where you set it.
1. To change the heating temperature, press the mode
button on the left until the screen says heat.
2. Press the up or down button located on the right side of
the display until you reach the desired temperature.
3. To change the cooling temperature, press the mode
button on the left until the screen says cool.
4. 4. Press the up or down button located on the right side of the display
until you reach the desired temperature.