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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.
Air conditioner ON
(Remote controller)
YES
YES
NO
NO
Indoor unit controller
Fan motor ON
3) Fan lock
4) Motor operates as shown in the table below.
1) Outdoor unit
operation command
(Outdoor fan control)
Air conditioner
OFF
Alarm
display
2) Fan speed
≥
400.
(by strong wind)
when the motor OFF.
Fan motor OFF continues
(Use wind for heat
exchanging)
30.6≤Hz
RAS-24PAVSG-E
Hz<13.8
13.8≤Hz<32.4
32.4≤Hz
MIN
MAX
MIN
MAX
MIN
MAX
f6
fB
f8
fE
fA
fE
f5
fA
f7
fE
f9
fE
f3
f7
f5
f9
f7
fB
To
f2
f5
f4
f7
f6
f9
f1
f3
f3
f5
f4
f7
f1
f2
f2
f4
f3
f5
When To is abnormal
OFF
fB
OFF
fE
f1
fE
To≥5.5 °C
To≥0 °C
To<0 °C
Compressor speed (rps)
In cooling operation
To≥38 °C
To≥28 °C
To≥15 °C
Model
RAS-18PAVSG-E
Hz<13.8
RAS-22PAVSG-E
13.8≤Hz<30.6
Tap
RAS-18PKVSG-E
RAS-22PKVSG-E
RAS-24PKVSG-E
f1
200
200
250
f2
300
300
300
f3
300
300
350
f4
360
360
450
f5
440
440
500
f6
500
500
560
f7
550
550
600
f8
600
600
650
RPM
Tap
RAS-18PKVSG-E
RAS-22PKVSG-E
RAS-24PKVSG-E
f9
650
650
700
fA
700
700
700
fB
700
750
700
fC
750
800
750
fD
800
850
750
fE
900
950
900
fF
900
950
900
RPM
Outdoor fan speed (rpm)
FILE NO. SVM-17001
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