Toshiba RAS-10N3AV2-A, Service Manual

Page: 33 / 116

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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
(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)
FILE NO. SVM-13001
* The values of fan speed and air flow
volume indicate on the table are
measured when the louver is inclined
downward. Fan speed and air flow
volume broadly vary with position
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 temperature
and room temperature.
of louver.
Fan speed
level COOL HEAT DRY
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 1210 571 1300 620 1510 735
WE H 1210 571 1300 620 1510 735
WD UH M+ 1170 546 1
300 62
0 1480 717
WC H 1120 515 1
3
00
62
0 1430 686
WB M+ 1040 465 1
150 514
1280 594
WA 1000 440 4
95
W9 M L+ 960 415
1050 465
1150 514
W8 L 870 359
920 372
1000 421
W7 L+ L- L+ 850 347
870 359
980 409
W6 L L 760 291
820 320
920 372
W5 L- UL L- 760 291 770 297 900 360
W4 UL UL 700 253 720 266 840 323
W3 SUL SUL 650 222 670 234 770 280
W2 SUL 500 129 520 141 620 187
W1 500 129 500 129 520 126
RAS-13
N3KV2-A
RAS-16
N3KV2-A
RAS-10
N3KV2-A
UH
H
M
M+
M
1100
1220 557