– 51 –
2. Indoor fan
motor control
<In cooling operation>
(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)
∗
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).
Item
Operation flow and applicable data, etc.
Description
* Symbols
UH
: Ultra High
H
: High
M+
:
M
: Medium
L+
: Low+
L
: Low
L-
: Low–
UL
: Ultra Low
SUL
: Super Ultra Low
COOL ON
Fan speed setup
MANUAL
AUTO
(Fig. 1)
(Fig. 2)
Indication
Fan speed
Hi Power
L
L+
M
M+
H
W7
(L + M) / 2
WA
(M + H) / 2
WD
W8
(L + M) / 2
WC
(M + H) / 2
WE
Fan speed
Hi Power
M+(WC)
H (WD)
L(W7)
L+(W8)
*3 : Fan speed = (M + –L) × 3/4 + L
*4 : Fan speed = (M + –L) × 2/4 + L
*5 : Fan speed = (M + –L) × 1/4 + L
*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)
Ta
[°C]
+2.5
+2.0
+1.5
+1.0
+0.5
Tsc
(Table 1) Indoor fan air flow rate (Cooling, Dry)
Fan speed level
RAS-M10PKVP-E
RAS-M13PKVP-E
RAS-M16PKVP-E
RAS-M18PKVP-E
Fan speed
(rpm)
Air flow rate
(m
3
/h)
Fan speed
(rpm)
Air flow rate
(m
3
/h)
Fan speed
(rpm)
Air flow rate
(m
3
/h)
Fan speed
(rpm)
Air flow rate
(m
3
/h)
WF
1200
690
1260
730
1340
790
1450
845
WE
UH
1200
690
1260
730
1340
790
1450
845
WD
H
1140
640
1210
690
1280
750
1390
805
WC
M+
1080
600
1130
640
1200
690
1310
745
WB
1020
560
1060
590
1120
630
1220
680
WA
M
960
510
990
530
1040
570
1130
620
W9
910
480
930
490
980
530
1070
575
W8
L+
850
430
870
450
930
490
1000
525
W7
L
790
390
810
400
880
450
930
475
W6
L–
770
370
770
370
770
370
800
380
W5
UL
700
320
700
320
700
320
700
310
W4
650
290
650
290
650
290
650
275
W3
SUL
600
250
600
250
600
250
600
240
W2
600
250
600
250
600
250
600
240
W1
520
190
520
190
520
190
520
185