This function is used for switching the display between Celsius and Fahrenheit.
Function Code conversion mode value
If pressing        button long for 3 
seconds, it enters into remote 
controller setter setup mode.
- If pressing once shortly, it enters 
into user setup mode. 
Please press more than 3 seconds for 
sure.
1
Press        button to exit or system 
will automatically exit after 25 
seconds without any input.
5
Repeat pressing         button to select 
Function code 12.
Ex) Fahrengeit Setting
2
Select Temperature unit mode by pressing        
      button. 
(00: Celsius, 01: Fahrenheit)
3
Press        button to save or release.
4
degrees.