Panasonic CS-PC12TKF Service Manual page 46

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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 3 minutes 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.
Indoor
Fan
Compressor
1 Fan Speed is Hi until the compressor stops (when the room temperature reaches
setting temperature).
2
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.
1
Lo-
Stop
40"
30"
ON
Fan Speed is Me after the compressor restarts.
stop
Indoor
Fan
40ʺ
Compressor
Lo-
Variable RPM
160"
20"
OFF
Lo-
Lo-
stop
ON
OFF
46
2
Lo-
Lo-
Stop
40"
30"
ON
Lo-
stop
40ʺ
ON

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