Toshiba RAV-SM563UT-E Service Manual page 77

4. Outdoor fan control
W 1
SM56 200 300
SM80 200 300
SM110 250 280
SM140 250 280
1) Cooling fan control
Q
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).
R
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.
S
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.
SM56, SM80
SM110, SM110
TE [˚C]
+1 tap/20 seconds
a
b
–1 tap/20 seconds
(The operation frequency differs according to the model type.)
Temp. range
29°C < TO
15 < TO < 29°C
5 < TO < 15°C
0 < TO < 5°C
TO < 0°C
TO error
Allocations of fan tap revolutions [rpm]
W 2 W 3 W 4 W 5
350 410 480 500
350 410 480 500
320 360 410 460
320 360 410 460
a b
36 32
29 26
rpm hold
Below 30Hz
Min. Max.
W5 WA
W3 W7
W2 W5
W1 W3
W1 W2
W1 WF
W 6 W 7 W 8
530 560 640 670
530 560 640 670
520 580 640 700
520 580 640 700
Operation with WE
TD [˚C]
85
80
75
65
Above 30 Hz below 45 Hz
Min. Max.
W7 WC
W5 W9
W4 W7
W3 W5
W2 W4
W1 WF
– 77 –
W 9 W A W B W C
700 750 800 840
700 750 840 940
760 860 860 900
760 860 860 900
Operation with
maximum tap in
each zone
Usual fan control
Above 45 Hz
Min. Max.
W9 WF
W7 WB
W6 W9
W4 W7
W3 W5
W1 WF
W D W
840
980
930
970