Toshiba RAS-24J2AVSG-E - Outdoor Fan Motor Control

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)
Outdoor Fan Speeds (rpm)
In cooling operation In heating operation
Compressor speed
RAS-18J2AVSG-E
Hz < 20.4 20.4 ≤ Hz < 30.6
30.6 ≤ Hz
Compressor speed
RAS-18J2AVSG-E
Hz < 20.4 20.4 ≤ Hz < 48.6
48.6 ≤ Hz
RAS-22J2AVSG-E
Hz < 20.5 20.4 ≤ Hz < 30.7
30.6 ≤ Hz
RAS-22J2AVSG-E
Hz < 20.5 20.4 ≤ Hz < 48.7
48.6 ≤ Hz
RAS-24J2AVSG-E
Hz < 20.4 20.4 ≤ Hz < 32.4
32.4 ≤ Hz
RAS-24J2AVSG-E
Hz < 20.6 20.4 ≤ Hz < 43.8
43.8 ≤ Hz
MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX
f6 fB f8 fE fA fE f7 f8 f9
f5 fA f7 fE f9 fE f9 fB fE
f3 f7 f5 f9 f7 fB fE fE fE
f2 f5 f4 f7 f6 f9 fE fE fE
f1 f3 f3 f5 f4 f7 fE fE fE
f1 f2 f2 f4 f3 f5 fE fF fF
OFF fB OFF fE f1 fE
To < - 10°C
To ≥ 0°C When To is abnormal
When To is abnormal
To ≥ 28°C To ≥ 5°C
To ≥ 15°C To ≥ -3°C
To ≥ 5.5°C To ≥ -10°C
Fan speed range Fan speed range
To
To ≥ 38°C
To
To ≥ 10°C
To ≥ 0°C
Fan speed range
f0 f1 f2 f3 f4 f5 f6 f7 f8 f9 fA fB fC fD fE fF
RAS-18J2AVSG-E
0 300 300 300 360 450 500 550 600 650 700 800 900 900 900 900
RAS-22J2AVSG-E
0 300 300 300 360 450 500 550 600 650 700 800 900 950 950 950
RAS-24J2AVSG-E
0 300 300 300 450 500 600 650 650 700 750 800 900 900 900 950
Model name
- 38 -