Midea MRT-60HN2 Manual page 25

 Press the 'Auxiliary' button.
 Press the 'Adjust' button to select the Main and slave unit setting.
 Press the 'Auxiliary' button again for confirmation.
 Press the 'Adjust' button, set the air conditioner to be the main or slave unit.
 Press the 'Auxiliary' button again for confirmation.
High and Low Temp cascade (Available for Dual units)
Press the 'Auxiliary' button.

 Press the 'Adjust' button to select the High/low temp.
 Press the 'Auxiliary' button again for confirmation.
Press the 'Adjust' button to select the high/low temp to be the one which you need, every

press the button will add 1° C.
 Press the 'Auxiliary' button again for confirmation.
 To switch off the function, press the 'Auxiliary' button and the 'Adjust' button again to select
High/low temp and press the 'Auxiliary' button for confirmation.
Dual units switch (Available for Dual units)
 Press the 'Auxiliary' button.
 Press the 'Adjust' button to select the Dual units switch.
 Press the 'Auxiliary' button again for confirmation, then the screen display 'Stand-Rotation 12h'.
 Press the 'Adjust' button to select the dual units switch hours to be the one you need, (Factory