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4. Outdoor fan control<br />

Allocations of fan tap revolutions [rpm]<br />

W1 W2 W3 W4 W5 W6 W7 W8 W9 WA WB WC WD WE WF<br />

SP40, SP45<br />

200 300 350 410 480 500 560 640 670 700 750 800 800 840 840<br />

1) Cooling fan control<br />

The outdoor fan is controlled by TE, TD, and TO sensors and also revolution frequency of the operation.<br />

The outdoor is controlled by every 1 tap of DC fan control (15 taps).<br />

‚ Only during 60 seconds after the operation has started, the fan is fixed with the maximum fan tap<br />

which corresponds to the zone in the following table.<br />

After then the fan is controlled by TE sensor temperature.<br />

ƒ Considering a case that TE sensor has come out of the holder, the fan is controlled so that revolution<br />

frequency of the fan increases regardless of TE if temperature of TD sensor has risen.<br />

Operation with WE<br />

TE [˚C]<br />

TD [˚C]<br />

“WF”<br />

+1 tap/20 seconds<br />

85<br />

32<br />

29<br />

rpm hold<br />

80<br />

75<br />

Operation with<br />

maximum tap in<br />

each zone<br />

–1 tap/20 seconds<br />

65<br />

Usual fan control<br />

Temp. range<br />

38°C ≤ TO<br />

32 ≤ TO < 38°C<br />

15 ≤ TO < 32°C<br />

5 ≤ TO < 15°C<br />

1 ≤ TO < 5°C<br />

–5 ≤ TO < 1°C<br />

TO < –5°C<br />

TO error<br />

f < 34.1Hz 34.1Hz ≤ f < 58.6Hz 58.6Hz ≤ f<br />

Min. Max. Min. Max. Min. Max.<br />

W6 WB W8 WD WA WF<br />

W5 WA W7 WC W9 WF<br />

W3 W7 W5 W9 W7 WB<br />

W2 W5 W4 W7 W6 W9<br />

W1 W3 W3 W5 W4 W7<br />

W1 W2 W2 W4 W3 W5<br />

OFF OFF W3 W1 W4<br />

W1 WF W1 WF W1 WF<br />

– 84 –

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