Honeywell RTH4300B Guide D'installation page 20

Installation Guide
Function 1: System type About your new thermostat
Setup
1
Press to change setting.
When finished, press to
advance to the next
function.
Press the
of climate control system you have in your
0
home:
0 Heating & cooling: Gas, oil or electric
heating with central air conditioning.
1 Heat pump: Outside compressor
provides both heating and cooling.

button to select the type
t