45ii. Auto Fan Speed[Cooling, Dry] According to room temperature and setting temperature, indoor fan speed is determined automatically. The indoor fan will operate according to pattern below.[Heating] According to indoor pipe temperature, automatic heating fan speed is determined as follows.B. Feedback control Immediately after the fan motor started, feedback control is performed once every second. During fan motor on, if fan motor feedback ≥ 2550 rpm or < 50 rpm continue for 10 seconds, then fan motor errorcounter increase, fan motor is then stop and restart. If the fan motor counter becomes 7 times, then H19 - fanmotor error is detected. Operation stops and cannot on back.12.2 Airflow Direction1 There is one type of airflow, vertical airflow (directed by horizontal vane).2 Control of airflow direction can be automatic (angles of direction is determined by operation mode, heatexchanger temperature and intake air temperature) and manual (angles of direction can be adjusted usingremote control).12.2.1 Vertical AirflowOperation Mode Airflow Direction Vane Angle (°)1 2 3 4 5HeatingAuto with Heat Exchanger A Downward fix 70B Downward fix 70C Upward fix 20Temperature D Upward fix 20Manual 20 33 45 58 70Cooling Auto 20 ~ 70Manual 20 33 45 58 70Soft Dry Auto 20 ~ 70Manual 20 33 45 58 701 Automatic vertical airflow direction can be set using remote control; the vane swings up and down within theangles as stated above. For heating mode operation, the angle of the vane depends on the indoor heatexchanger temperature as Figure 1 below. When the air conditioner is stopped using remote control, thevane will shift to close position.2 Manual vertical airflow direction can be set using remote control; the angles of the vane are as stated aboveand the positions of the vane are as Figure 2 below. When the air conditioner is stopped using remote control,the vane will shift to close position.