Outdoor Fan Control - Toshiba RAV-SP454ATP-E Service Manual

3. Outdoor fan control

W1
SP40 to SP56 200
SP80 200
3-1) Cooling fan control
<SP40 to SP56>
The outdoor fan is controlled by TE sensor, TO
sensor and the operation frequency. It is controlled
by every 1 tap of DC fan control (15 taps).
Only for 60 seconds after start-up of operation, it is
fixed by the maximum fan tap corresponded to the
zone in the following table, and then the fan is
controlled by temperature of TE sensor.
When temperature of TD sensor became high
sufficiently, it is controlled so that the fan revolution
frequency will become higher ignoring TE sensor
temperature.
TE [˚C]
revolution frequency of each zone
∗ Operation with W1 in case of fan-OFF
32
Revolution frequency hold
29
Down to the minimum
revolution frequency of each zone
TD [˚C]
85
80
75
65
<SP40 to SP56>
Temp. range
38°C ≤ TO
28°C ≤ TO < 38°C
15°C ≤ TO < 28°C
5.5°C ≤ TO < 15°C
0°C ≤ TO < 5.5°C
–5°C ≤ TO < 0°C
TO < –5°C
TO error
SVM-12085_001-050.indd 39 SVM-12085_001-050.indd 39
Revolution frequency allocation of fan taps [rpm]
W2 W3 W4 W5
250 300 400 480
230 260 300 340
+1 tap / 20 sec
Up to the maximum
–1 tap / 20 sec
Operation
with WF
Operation with
the maximum tap
of each zone
Normal fan control
by TE sensor
20 Hz 20Hz 45Hz
or lower to 45Hz or higher
Min. Max. Min. Max. Min. Max.
W6 WB W7 WE W9
W5 WA W6 WD W8
W3 W7 W4 W9 W6
W2 W5 W3 W7 W5
W1 W3 W2 W5 W3
W1 W2 W1 W3 W2
OFF OFF OFF OFF W1
W1 WB W1 WE W1
W6 W7 W8 W9 WA
500 520 560 640 670
380 420 460 520 570
<SP80>
The outdoor fan is controlled by TL sensor, TO
sensor and the operation frequency.
The outdoor fan is controlled by every 1 tap of DC
fan control (15 taps).
Only for 60 seconds after the operation has
started, the maximum fan tap corresponding to the
zone in the following table is fixed and then the fan
is controlled by temperature of TL sensor.
TL [˚C]
58
55
revolution frequency of each zone
38
Revolution frequency hold
35
Down to the minimum
revolution frequency of each zone
Temp. range
38°C ≤ TO
WF
29°C ≤ TO < 38°C
WE
15°C ≤ TO < 29°C
WB
5°C ≤ TO < 15°C
W9
0°C ≤ TO < 5°C
W7
–4°C ≤ TO < 0°C
W4
W3
TO < –4°C
WF
TO error
– 39 –
FILE NO. SVM-12085
WB WC WD WE
700 750 800 880
600 630 670 710
WF tap
+1 tap / 20 sec
Up to the maximum
–1 tap / 20 sec
<SP80>
20 Hz 20Hz 45Hz
or lower to 45Hz or higher
Min. Max. Min. Max. Min. Max.
W6 WC W8 WE WA
W5 WB W7 WD W9
W4 W8 W6 WA W8
W3 W6 W5 W8 W7
W2 W4 W4 W6 W5
W2 W3 W3 W5 W4
OFF OFF OFF W2 OFF
OFF WC OFF WE OFF
WF
980
740
WE
WD
WC
WA
W8
W6
W3
WE
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