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Indoor Fan Motor Control; In Cooling Operation - Toshiba RAS-M10PKVP-E Service Manual

Air conditioner (split type)
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2. Indoor fan
<In cooling operation>
motor control
(This operation controls the fan speed at indoor unit side.)
The indoor fan (cross flow fan) is operated by the phase control
induction motor.
The fan rotates in 5 stages in MANUAL mode, and in 5 stages in
AUTO mode, respectively. (Table 1)
COOL ON
Fan speed setup
AUTO
(Fig. 2)
Ta
[ °C ]
+2.5
a
+2.0
b
+1.5
c
+1.0
d
+0.5
e
Tsc
*3 : Fan speed = (M + –L) × 3/4 + L
*4 : Fan speed = (M + –L) × 2/4 + L
*5 : Fan speed = (M + –L) × 1/4 + L
RAS-M10PKVP-E
Fan speed level
Fan speed
(rpm)
WF
1200
WE
UH
1200
WD
H
1140
WC
M+
1080
WB
1020
WA
M
960
W9
910
W8
L+
850
W7
L
790
W6
L–
770
W5
UL
700
W4
650
W3
SUL
600
W2
600
W1
520
Operation flow and applicable data, etc.
MANUAL
Indication
Fan speed
L
W7
L+
(L + M) / 2
M
WA
M+
(M + H) / 2
H
WD
Fan speed
M+(WC)
*3
*4
*5
L(W7)
*6 : Fan speed = (H –L+) × 3/4 + L+
*7 : Fan speed = (H –L+) × 2/4 + L+
*8 : Fan speed = (H –L+) × 1/4 + L+
(Linear approximation from M+ and L)
(Table 1) Indoor fan air flow rate (Cooling, Dry)
RAS-M13PKVP-E
Air flow rate
Fan speed
3
(m
/h)
(rpm)
690
1260
690
1260
640
1210
600
1130
560
1060
510
990
480
930
430
870
390
810
370
770
320
700
290
650
250
600
250
600
190
520
(Fig. 1)
Hi Power
W8
(L + M) / 2
WC
(M + H) / 2
WE
Hi Power
H (WD)
*6
*7
*8
L+(W8)
RAS-M16PKVP-E
Air flow rate
Fan speed
3
(m
/h)
(rpm)
730
1340
730
1340
690
1280
640
1200
590
1120
530
1040
490
980
450
930
400
880
370
770
320
700
290
650
250
600
250
600
190
520
– 59 –
Description
* Symbols
UH
: Ultra High
H
: High
M+
: Medium+
M
: Medium
L+
: Low+
L
: Low
L-
: Low–
UL
: Ultra Low
SUL
: Super Ultra Low
∗ The fan speed broadly varies due to
position of the louver, etc. The
described value indicates one under
condition of inclining downward
blowing.
1) When setting the fan speed to L, L+,
M, M+ or H on the remote controller,
the operation is performed with the
constant speed shown in Fig. 1.
2) When the fan speed mode is manual
and TA < 22°C and the compressor
stops, the fan speed is controlled
from W2 (20 seconds) to 0 rpm (40
seconds).
3) When setting the fan speed to AUTO
on the remote controller, revolution of
the fan motor is controlled to the fan
speed level shown in Fig. 2 and Table
1 according to the setup temperature,
room temperature, and heat
exchanger temperature.
4) When the fan speed mode is AUTO
and the compressor stops, the fan
speed is controlled from W2 (20
seconds) to 0 rpm (40 seconds).
RAS-M18PKVP-E
Air flow rate
Fan speed
Air flow rate
3
(m
/h)
(rpm)
790
1450
790
1450
750
1390
690
1310
630
1220
570
1130
530
1070
490
1000
450
930
370
800
320
700
290
650
250
600
250
600
190
520
3
(m
/h)
845
845
805
745
680
620
575
525
475
380
310
275
240
240
185

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