53
[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 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.
14.3 Airflow Direction
There is one type of airflow, vertical airflow (directed by horizontal vane).
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).
14.3.1 Vertical
Airflow
Operation Mode
Airflow Direction
Upper Vane Angle (°)
1 2 3 4 5
Heating
Auto with Heat Exchanger
A
Upward fix
20
B
Downward
fix
58
Temperature C
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.
RPM Increased
RPM Maintain
RPM Reduced
OFF
Indoor Pipe Temp.
35
o
C
40
o
C
16
o
C
19
o
C
A
C
B
Indoor Heat Exchanger
Temperature
58°C
50°C
Figure 1
30°C
37°C
Figure 2
All open
Swing
All close
Lower limit
Upper limit
1
2
3
4
5
