• Depending on the type of indoor unit, and/or on system layout and organization, Auto airflow direction may not be available. • For some types of indoor units, the airflow direction setting is unavailable. • If the floor-standing indoor unit does not have vertical airflow, the left and right direction icons are displayed. Result: The indoor unit changes its airflow direction and the controller returns to the home screen. Automatic airflow control In the following operating conditions, the airflow direction of the indoor units is controlled automatically: • When the room temperature is higher than the controller’s setpoint for Heating operation (including Auto operation).
• When the indoor units run in Heating operation mode, and the Defrost function is active. • When the indoor units run in Continuous operation, and the airflow direction is horizontal. 21