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• Auto Fan Speed during cooling operation:
1 Indoor fan will rotate alternately between off and on as shown in below diagram.
2 At the beginning of each compressor starts operation, indoor fan speed increases gradually for deodorizing
purpose.
3 For the first time the compressor operates, indoor fan will be switched to Hi fan speed from Lo- after 70
seconds from the start of compressor. This cause the room temperature to achieve the setting temperature
quickly.
4 During compressor stops, indoor fan will operate at Lo- for the beginning 20 seconds to prevent higher
volume of refrigerant in liquid form returning to the compressor.
5 After the compressor turned off for 3 minutes, indoor fan will start to operate at Lo- to circulate the air in the
room. This is to obtain the actual reading of the intake air temperature.
6 For the resume of compressor operation, indoor fan will operate at Me fan speed to provide comfort and
lesser noise environment, after 70 seconds from the restarts of compressor.
• Auto Fan Speed during Soft Dry operation.
1 Indoor fan will rotate alternately between off and Lo-.
2 At the beginning of each compressor starts operation, indoor fan will increase fan speed gradually for
deodorizing purpose.
3 When compressor turned off for 6 minutes, indoor fan will start at Lo- to circulate the air in the room. This is
to obtain the actual reading of intake air temperature.
12.4.3 Manual Fan Speed Control
• Manual fan speed adjustment can be carried out by using the Fan Speed selection button at the remote control.
• There are 3 types of fan speed settings: Lo, Me, Hi.
12.4.4 Indoor Fan Motor rpm Abnormal Control
• Immediate after the fan motor is started, rpm abnormal control is performed every second.
• 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 air conditioner will stop operation.
