– 30 –
Item
2. Indoor fan
motor control
Operation flow and applicable data, etc.
<In cooling operation>
The indoor fan motor is operated in 5 stages in MANUAL
mode (Fig.1) and 5 stages in AUTO mode (Fig. 2)
Table 1 shown the indoor fan speed and air flow rate of
each mode.
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,
L+, M, 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)
L
L+
M
M+
H
W6
(L + M) / 2
W9
(M + H) / 2
WC
Indication
Fan speed
Fan speed setup
COOL ON
AUTO
MANUAL
FILE NO. SVM-13071
+4.5 (+2.5)
Ta
°F [°C]
+3.5 (+2.0)
+2.7 (+1.5)
+2.0 (+1.0)
+1.0 (+0.5)
Tsc
a
b
c
d
e
M+(WB)
*3
*4
*5
L(W6)
Air volume AUTO
*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)
Fan speed
level
Fan speed
Air flow rate
Fan speed
Air flow rate
(rpm)
cfm (m
3
/h)
(rpm)
cfm (m
3
/h)
WF
1210
336 (571)
1510
433 (735)
WE
1210
336 (571)
1510
433 (735)
WD
UH
UH
1170
321 (546)
1480
422 (717)
WC
H
H
1120
303 (515)
1430
404 (686)
WB
M+
M+
1040
274 (465)
1280
350 (594)
WA
M
1000
248 (421)
1220
328 (557)
W9
M
960
235 (400)
1150
302 (514)
W8
870
200 (340)
1000
248 (421)
W7
L+
L+
850
194 (330)
980
241 (409)
W6
L
L
760
159 (270)
920
219 (372)
W5
L-
L-
760
159 (270)
900
212 (360)
W4
UL
UL
700
141 (240)
840
190 (323)
W3
SUL
SUL
650
118 (200)
770
165 (280)
W2
500
65 (110)
620
110 (187)
W1
500
65 (110)
520
74 (126)
DRY
COOL
RAS-09EKCV-UL
RAS-12EKCV-UL
(Table 1) Indoor fan air flow rate