Carrier TC-NAC Owner's Manual page 4

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