Honeywell RTH6400 Series Quick Installation Manual page 22

Advanced Installation Guide
Function 14: Temperature display About your new thermostat
Press the or
s
temperature display:
14
Done
0 Fahrenheit temperature display (°F)
1 Celsius temperature display (°C)
Press to change setting. When
correct setting is selected,
press DONE to exit and save
changes.
M28351
69-2210ES—05
button to select Fahrenheit or Celsius
t
0
Next
20
M28357