Toshiba RAV-GM2241AT8-TR Service Manual page 45

3. Outdoor fan revolution number control
Control of fan revolution number and the fan taps in this unit are shown below.
W1
Upper Fan 200
GM224
Lower Fan
Upper Fan 200
GM280
Lower Fan
3-1. Cooling fan control
1) Cooling operations of the outdoor fan are controlled by a TL sensor, TO sensor and the compressor
revolution number. Control is performed per 1 tap of DC fan control.
The outdoor fan is controlled by every 1 tap of DC fan control (14 taps).
During startup, operation is fixed for 60 seconds by a maximum fan tap corresponding to the zones shown
in the table below. Thereafter fan tap is controlled by a temperature outputted from the TL sensor.
Less than 38rps
GM280
Min.
38˚C ≤ TO
W6
29˚C ≤ TO < 38˚C
W5
15˚C ≤ TO < 29˚C
W3
5˚C ≤ TO < 15˚C
W2
0˚C ≤ TO < 5˚C
W1
-5˚C ≤ TO < 0˚C
W1
OFF
TO < -5˚C
OFF
TO trouble
Less than 38rps
GM224
Min.
38˚C ≤ TO
W6
29˚C ≤ TO < 38˚C
W5
15˚C ≤ TO < 29˚C
W3
5˚C ≤ TO < 15˚C
W2
0˚C ≤ TO < 5 ˚C
W1
-5˚C ≤ TO < 0 ˚C
W1
OFF
TO < -5˚C
OFF
TO trouble
Fan Taps Revolution number Allocation [rpm]
W2 W3 W4
240 340 430
0 0 380 470
240 340 430
0 0 380 470
38rps or more
and less than 52 rps
Max. Min.
WB W8
WA W7
W7 W5
W5 W4
W3 W3
W2 W2
W2 W1
WB W1
38rps or more
and less than 52 rps
Max. Min.
WB W8
WA W7
W7 W5
W5 W4
W3 W3
W2 W2
W2 W1
WB W1
W5 W6 W7 W8
460 500 580 640
500 540 610 680
460 500 580 640
500 540 610 680
52rps or more
Max. Min. Max.
WF WA
WF W9
W9 W7
W7 W6
W5 W4
W4 W3
W3 W2
WF W2
52rps or more
Max. Min. Max.
WE WA
WD W9 WD
W9 W7
W7 W6
W5 W4
W4 W3
W3 W2
WE W2
– 45 –
W9 WA WB WC
680 720 760 820
720 760 800 860
680 720 760 820
720 760 800 860
TL
58
55
WF
WF
WB
W9
W7
W5
37
W4
Revolution number HOLD
34
WF
TL
58
55
WE
WB
W9
W7
W5
37
W4
Revolution number HOLD
34
WE
WD WE WF
860 910 960
900 950 1000
860 910 960
900 950 1000
WF tap
+1tap/20sec
WF tap
+1tap/20sec