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
Compres
sor 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)
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