70
Fan speed control
o Fan speed selection is prohibited. Fan speed display at remote control is fixed at AUTO.
o The internal fan speed will set to be SHi + iAUTO-X fan speed shift, it is slightly higher than SHi fan speed
initially for maximum 30 minutes to achieve the setting temperature quickly. Then it will shift between SHi ~
Lo fan speed depends on intake and setting temperature.
Vane control is follow remote control setting. Except for Auto horizontal vane, when room temperature more than
27°C, it will give a spot airflow (inner and outer vanes will be in a smaller distance). When room temperature cool
down, it will either fixed at step 3 or step 1 (Showering effect for better comfort after room temperature cooled
down) depends on the “intake - setting temperature”.
12.2 Indoor Fan Motor Operation
12.2.1 Basic Rotation Speed
Manual Fan Speed
o Fan motor’s number of rotation is determined according to remote control setting.
Remote control ○ ○ ○ ○ ○
Tab Hi Me+ Me Me- Lo
Auto Fan Speed
o According to room temperature and setting temperature, indoor fan speed is determined automatically.
o The indoor fan will operate according to pattern below.
Fan Speed a b c d e f g h a b
g
e
e
um
owe
[1 pattern : 10s]
Feedback control
o Immediately after the fan motor is started, feedback control is performed once every second.
o During fan motor on, if fan motor feedback ≥ 2550 rpm or < 50 rpm continuously for 10 seconds, the fan
motor error counter increased; fan motor is then stopped and restarted. If the fan motor error counter
increased to 7, then H19 – fan motor error is detected. Operation stopped and could not be restarted.
12.3 Outdoor Fan Motor Operation
Outdoor fan motor is operated with one fan speed only. Outdoor fan turns on when compressor starts to operate. But
outdoor fan will turns off 30 seconds after compressor stops to operate.
ON ON
Compressor OFF
ON Fan Speed ON
Outdoor Fan 30 sec OFF
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