Panasonic CS-ME9PB4EA, Service Manual

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