– 30 –
Item
2. Indoor fan
motor control
Operation flow and applicable data, etc.
<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, respec-
tively. (Table 1)
Description
* Symbols
UH
: Ultra High
H
: High
M+
:
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,
M or H on the remote
controller, the operation is
performed with the constant
speed shown in Fig. 1.
2) 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 tempera-
ture, room temperature, and heat
exchanger temperature.
(Fig. 1)
(Fig. 2)
(Table 1) Indoor fan air flow rate
+2.5
Ta
[˚C]
+2.0
+1.5
+1.0
+0.5
Tsc
a
b
c
d
e
M+(WB)
*3
*4
*5
L(W6)
Air volume AUTO
Fan speed setup
COOL ON
AUTO
MANUAL
*3 : Fan speed = (M + –L) x 3/4 + L
*4 : Fan speed = (M + –L) x 2/4 + L
*5 : Fan speed = (M + –L) x 1/4 + L
(Linear approximation
from M+ and L)
FILE NO. SVM-08011
L
W6
Indication
Fan speed
M
W9
H
WC
Fan speed
level COOL HEAT
DRY
WF
UH
WE
H
WD UH M+
WC H
WB M+
WA
W9 M L+
W8
L
W7 L+ L- L+
W6 L
L
W5 L- UL L-
W4 UL
UL
W3 SUL
SUL
W2
SUL
W1
UH
H
M
M+
M
Fan speed Air flow rate
(rpm) (m3/h)
1470
743
1470
743
1440
723
1390
691
1250
601
1190 563
1120
518
970
421
950
408
890
370
870
357
810
318
750
280
500 119
RAS-167SKV-E
Fan speed Air flow rate
(rpm) (m3/h
1240 630
1240 630
1190 596
1140 563
1040 496
100 469
960 443
870 383
850 369
760 309
760 309
700 269
650 236
500 135
500 135
RAS-137SKV-E
600
183