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4. Outdoor fan control
Allocations of fan tap revolutions [rpm]
SM160
High
Low
W1 W2 W3 W4 W5 W6 W7 W8 W9 WA WB WC WD WE WF
250 260 260 320 380 480 500 530 610 640 660 720 720 720 780
——240 300 400 500 520 550 630 660 700 740 740 740 820
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.
(The operation frequency differs according to the model type.)
SM160
ab
37 34
+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
Temp. range
29°C
<
TO
15
<
TO < 29°C
5
<
TO < 15°C
0
<
TO < 5°C
–5
<
TO < 0°C
TO < –5°C
TO error
Below 30Hz Above 30 Hz below 45 Hz Above 45 Hz
Min. Max. Min. Max. Min. Max.
W5 WA W7 WC W9 WE
W3 W7 W5 W9 W7 WB
W2 W5 W4 W7 W6 W9
W1 W3 W3 W5 W4 W7
W1 W2 W2 W4 W3 W5
OFF OFF OFF W3 OFF W3
W1 WE W1 WE W1 WE