Toshiba RAV-SP1100UT-E Service Manual page 39

4. Outdoor fan control (Object: RAV-SP560AT-E / RAV-SP800AT-E / RAV-SP1100AT-E / RAV-SP1400AT-E)
Upper fan
SP560
Lower fan
Upper fan
SP800
Lower fan
Upper fan
SP1100
Lower fan
Upper fan
SP1400
Lower fan
1) Cooling fan control

The outdoor fan is controlled by TE sensor.
(Cooling: Temperature conditions after medium term)
The cooling fan is controlled by every 1 tap of DC fan control (14 taps).
‚
At the activation time, although the maximum fan
tap in the following table are fixed for 60 seconds,
after then the fan may not rotate with high speed
for several minutes because the fan is controlled
by TE sensor value. It is not an abnormal status.
ƒ
When the discharge temperature sensor is
abnormal or the sensor comes off the holder, the
fan does not rotate with high speed, but a protec-
tive device works.
„
When the outdoor fan does not rotate with high
speed, judge a fan error by comparing the control
data in the following table with TO and TE values.
While the outdoor temperature is low (TO < 5°C), the outdoor fan may not operate.
Control for fan tap by outdoor temperature in normal operation
TO TO < –5°C
MIN OFF
MAX W3
2) Heating fan control

This control function lowers fan tap according to TE sensor value when outdoor temperature is high.
‚
When a status TE > 20°C is detected continu-
ously for 5 minutes, the operation may stop. This
status does not output an error code and is
assumed as usual status of thermo-OFF. The fan
restarts after approx. 2 minutes 30 seconds and
this intermittent operation is not a trouble.
ƒ
If the status in item
considered that the filter of suction part of the
indoor unit is dirty. Clean the filter and restart the
operation.
„
This control function does not work for 30 min-
utes after activation, 1 minute after defrosting,
and during defrost operation.
Allocautions of fan tap revolutions [rpm]
W1 W2 W3 W4 W5
250 270 290 310 340
OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF
250 270 290 310 340
OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF
250 270 270 300 350
— — 250 280 330
250 270 270 300 350
— — 250 280 330
–5 ≤ TO <0°C 0 ≤ TO < 5°C 5 ≤ TO < 15°C 15 ≤ TO < 29°C
W1 W1
W5 W7
‚
is frequently found, it is
W6 W7 W8 W9
370 400 440 480
370 400 440 480
410 470 530 590
390 450 510 570
410 470 530 590
390 450 510 570
TE [˚C]
46
37
34
20
W2 W3
W9 WB
TE [˚C]
–60 rpm / 20 sec. STOP timer count
24
21
17
15
39
WA WB WC WD WE
520 560 610 700 700
520 560 610 700 700
670 750 750 760 760
650 730 730 740 740
670 750 860 860 860
650 730 840 840 840
MAX.
+30 rpm / 20 sec.
Hold zone
–30 rpm / 20 sec.
MIN.
29°C ≤ TO
TO error
W5
WF
–60 rpm / 20 sec.
–30 rpm / 20 sec.
Hold zone
+30 rpm / 20 sec.
WF
810
810
860
840
860
840
W1
WE