Item
3. Outdoor fan
motor control
Operation flow and applicable data, etc.
The blowing air volume at the outdoor unit side is controlled.
Receiving the operation command from the controller of
indoor unit, the controller of outdoor unit controls fan speed.
* For the fan motor, a DC motor with non-stage variable
speed system is used. However, it is limited to 8 stages for
reasons of controlling.
Description
1) The operation command sent
from the remote controller is
processed by the indoor unit
controller and transferred to the
controller of the outdoor unit.
2) When strong wind blows at
outdoor side, the operation of air
conditioner continues with the
fan motor stopped.
3) Whether the fan is locked or not
is detected, and the operation of
air conditioner stops and an
alarm is displayed if the fan is
locked.
4) According to each operation
mode, by the conditions of
outdoor temperature (To) and
compressor revolution, the speed
of the outdoor fan shown in the
table is selected.
2) Fan speed
≥
400
when the motor stopped.
Air conditioner ON
(Remote controller)
YES
YES
NO
NO
Indoor unit controller
Fan motor ON
3) Fan lock
OFF status of
fan motor continues.
4) Motor operates as shown in the table below.
1) Outdoor unit
operation
command
(Outdoor
fan
control)
Air conditioner
OFF
Alarm
display
Outdoor fan speed (rpm)
Compressor speed (rps)
To > 38°C
To > 28°C
To
To > 15°C
To > 5.5°C
To > 0°C
When To is abnormal
Hz<
13.8
~ 31.7
32.
4<Hz
MIN MAX MIN MAX MIN MAX
f
5
f
A
f
7
f
E
f
9
f
E
f
3
f
7
f
5
f
9
f
7
f
B
f
2
f
5
f
4
f
7
f
6
f
9
f 1
f
3
f
3
f
5
f
4
f
7
In cooling operation
Compressor speed (rps)
To > 1
0
°C
To
To < 1
0
°C
To < 5°C
To
<
−
3
°C
When To is abnormal
Hz<
16.8
16.8
≤
Hz
≤
48.6
48.
6<Hz~
MAX
f
7
f 8
f 9
f
9
f
B
f
E
f
E
f
E
f
E
f
E
f
E
f
E
f
F
f
F
f
F
In Heating operation
f
6
f
B
f
8
f
E
f
A
f
E
To
<
0°C
f
1
f
2
f
2
f
4
f
3
f
5
OFF
f
B OFF
f
E
f
E
f
1
Tap
RAS-10BAV-E
1
RAS-13BAV-E
1
Tap
RAS-10BAV-E
1
RAS-13BAV-E
1
f 0
0
0
f 8
720
720
f 1
300
300
f 9
750
750
f 2
370
370
f A
780
780
f 3
390
390
f B
780
780
f 4
460
460
f C
880
880
f 5
500
500
f D
880
880
f 6
520
520
f E
950
950
f 7
620
620
f F
950
950
1
3
.8
≤
Hz
≤
32.4
FILE NO. SVM-17030
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