Dettson EVO Installation And Owner's Manual page 90

9. Operation
PTC function (on some models)
In heating operation, for the units with electric heating feature,
press this button to activate electric heating mode. When the
PTC function is activated,the "
NOTE: The electric auxiliary heating function of the AHU model is switched
by the MODE button , and the FUNC. button is a turbo function.
Follow me function indicator
Press the FUNC. button to select whether the room temperature is detected
at the indoor unit or the wire controller.
23
"mark appears.