Changes are saved by backing out from the Parameter menu.
7.2.2 Adjusting Temperature Units in the Parameters Menu
To adjust the temperature units between °Fahrenheit and °Celcius, go to the Parameters table by the
path Settings > Factory > 22 > Parameters described above. Press the > right arrow for the second
Parameters page.
Parameter H21, Temperature Unit, allows selection of 0-°C or 1-°F. Changes are saved by backing
out from the Parameter menu.
7.2.2 Adjusting Temperature Units in the Parameters Menu