Service manual

– 26 –
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+ : 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+,H or Quiet 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)
+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
L
L+
M
M+
H
W6
(L + M) / 2
W9
(M + H) / 2
WC
Indication
Fan speed
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-11015
(Table 1) Indoor fan air flow rate
Fan speed Air flow rate Fan speed Air flow rate Fan speed Air flow rate
(rpm) (m3/h) (rpm) (m3/h) (rpm) (m3/h)
WF UH 1430 707 1470 731 1510 756
WE H 1430 707 1470 731 1510 756
WD UH M+ UH 1350 657 1400 688 1450 719
WC H H 1300 626 1350 657 1400 668
WB M+ M+ M+ 1150 534 1200 565 1250 595
WA M 1000 440 1050 471 1100 503
W9 M L+ 950 409 1000 440 1050 471
W8 L 800 316 850 347 900 377
W7 L+ L- L+ 750 290 800 316 850 347
W6 L L 750 290 800 316 850 347
W5 L- UL L- 700 253 750 290 800 316
W4 UL UL 650 222 700 253 750 290
W3 SUL SUL 600 191 650 222 700 523
W2 SUL 500 129 520 141 620 203
W1 500 129 500 129 520 129
RAS-16SKVP2-ERAS-13SKVP2-E
Fan speed
level
DRYHEATCOOL
RAS-10SKVP2-E
Quiet
L
−