There are five internal units and one external unit connected by a VRV bus. The air conditioning system can be in 5 operation modes: Auto, Cool, Warm, Dehumidifier, and Ventilation.
The internal unit in the kitchen was set up as the Master Unit to select the Operation mode for all other units. The slave units (Bedroom, Studio, Gym and Hall) acquire the operation method of the Master Unit in the Kitchen and have a fewer optional methods in agreement with the Master selection. When the master (in the kitchen) is set to Ventilation mode all units go into ventilation mode. The unit in the kitchen determines the change of cool or heat mode. But it could set in Auto method to cool or heat according to the kitchen settings. The kitchen unit will arrest when the terrace door opens.
To reset the wired controller push the two upper buttons (left and right) simultaneously for 20 seconds. Push the Center button to select the Main Menu. Push the lower right button (return button) for 6 seconds to get the service menu.
