Midea KJR-120C/TF-E Installation & Owner's Manual page 22

9. OPERATION
PTC function (on some models)
Child lock function
°C & °F scale selection (on some models)
18
Press the Follow me/PTC button for 2 seconds or more to activate the
PTC function,when the unit is under the Heat mode.
Press the buttons again for 2 seconds or more to deactivate the PTC
function.
When the PTC function is activated,the
applicable to all the models)
Press and hold "+" and "-" buttons together for 3 seconds
or more to activate the child lock function and lock all buttons
on the wire controller.
Press the buttons again for 3 seconds or more to deactivate
the child lock function.
When the child lock function is activated,the
Press and hold
for 3 seconds will alternate the temperature display
between the ℃&℉ scale.
mark appears.(Not
and buttons together
mark appears.