Service Manual

– 65 –
+1 tap/20 seconds
rpm hold
–1 tap/20 seconds
Operation with
maximum tap in
each zone
Usual fan control
“WF”
32
29
TE [˚C]
TD [˚C]
85
80
75
65
Operation with WE
4. Outdoor fan control
Allocations of fan tap revolutions [rpm]
1) Cooling fan control

The outdoor fan is controlled by TE, TD, and TO sensors and also revolution frequency of the operation.
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.

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.
SP40, SP45
W1 W2 W3 W4 W5 W6 W7 W8 W9 WA WB WC WD WE WF
200 300 350 410 480 500 560 640 670 700 750 800 800 840 840
Temp. range
38°C ≤ TO
32 ≤ TO < 38°C
15 ≤ TO < 32°C
5 ≤ TO < 15°C
1 ≤ TO < 5°C
–5 ≤ TO < 1°C
TO < –5°C
TO error
f < 34.1Hz 34.1Hz
≤≤
≤≤
≤ f < 58.6Hz 58.6Hz
≤≤
≤≤
≤ f
Min. Max. Min. Max. Min. Max.
W6 WB W8 WD WA WF
W5 WA W7 WC W9 WF
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 W3 W1 W4
W1 WF W1 WF W1 WF