–
28
–
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,
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)
(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
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)
42NQV050M,42NQV050M-N
42NQV050M-A
42NQV060M,42NQV060M-N
42NQV060M-A
Fan speed
Air flow r ate
Fan speed
Air flow rate
(rpm)
(m3/h )
(rpm)
(m3/h)
WF
UH
1100
991
1200
1101
WE
H
1100
991
1200
1101
WD
M+
1090
980
1200
1101
WC
H
1070
957
1180
1079
WB M+
980
858
1080
968
WA 940 813
W9 M L+
890
758
980
858
W8
L
780
636
850
713
W7 L+ L- L+ 750 603 810 669
W6
L
L
740
591
800
658
W5 L- UL L-
700
547
760
614
W4
UL
UL
700
547
700
547
W3
SUL
SUL
650
492
650
492
W2
SUL
500
325
500
325
W1
500
325
500
325
M
COOL HEAT DRY
Fan speed
level
1020
902
FILE NO. SVM-10052