Press this button to select the operation mode:
If the indoor unit has Electric heating(Emergent
heating) feature, press this button to select the
operation mode:
When the mode is selected as emergency heating (or electric heating) mode,
is displayed, the fan speed is Auto. The Sleep, 46-degree heating, Turbo,
and Lead/Lag functions are not available in emergency heating mode.
When the mode is selected as heating & electric heating mode, is
displayed, and the Turbo and Lead/Lag functions are disabled.