Toshiba RAV-SM1101AT-E, Service Manual

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4. Outdoor fan control
Allocations of fan tap revolutions [rpm]
SM561
SM801
SM1101
SM1401
W1 W2 W3 W4 W5 W6 W7 W8 W9 WA WB WC WD WE WF
200 300 350 410 480 500 530 560 640 670 700 750 800 840 840
200 300 350 410 480 500 530 560 640 670 700 750 840 940 980
250 280 320 360 410 460 520 580 640 700 760 860 860 900 930
250 280 320 360 410 460 520 580 640 700 760 860 860 900 970
1) Cooling fan control
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The outdoor fan is controlled by TE, TD, and TO sensors and also revolution frequency of the opera-
tion. The outdoor is controlled by every 1 tap of DC fan control (15 taps).
‚
Only during 60 seconds after the operation has started, the fan is fixed with the maximum fan tap
which corresponds to the zone in the following table.
After then the fan is controlled by TE sensor temperature.
ƒ
Considering a case that TE sensor has come out of the holder, the fan is controlled so that revolution
frequency of the fan increases regardless of TE if temperature of TD sensor has risen.
+1 tap/20 seconds
rpm hold
–1 tap/20 seconds
Operation with
maximum tap in
each zone
Usual fan control
a
b
TE [˚C]
TD [˚C]
85
80
75
65
Operation with WE
(The operation frequency differs according to the model type.)
SM561, SM801
SM1101, SM1101
a b
36 32
29 26
Temp. range
29°C < TO
15 < TO < 29°C
5 < TO < 15°C
0 < TO < 5°C
TO < 0°C
TO error
Below 30Hz
Min Max
W5 WA
W3 W7
W2 W5
W1 W3
W1 W2
W1 WF
Above 30 Hz below 45 Hz
Min Max
W7 WC
W5 W9
W4 W7
W3 W5
W2 W4
W1 WF
Above 45 Hz
Min Max
W9 WF
W7 WB
W6 W9
W4 W7
W3 W5
W1 WF