Toshiba RAS-25U2AVPG-ND, Руководство по обслуживанию, Страница: 32 / 127

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)
L
L+
M
M+
H W7
(L + M) / 2
WA
(M + H) / 2
WD
Indication
Fan speed
Fan speed setup
COOL ON
AUTO
+2.5
TA-Tsc
[°C]
+2.0
+1.5
+1.0
+0.5
Tsc
a
b
c
d
e
M+(WC)
*3
*4
*5
L(W7)
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 appro ximation
from M+ and L)
Hi Power Fan speed
H+(WD)
*6
*7
*8
L+(W8)
*6 : Fan speed = (H − L+) x 3/4 + L+
*7 : Fan speed = (H − L+) x 2/4 + L+
*8 : Fan speed = (H − L+) x 1/4 + L+
(Linear appro ximation
from H and L+)
Hi-POWER
W8
(L + M) / 2
WC
(M + H) / 2
WE
Fan speed
level
Fan speed Air flow rate Fan speed Air flow rate
(rpm) (m3/h) (rpm) (m3/h)
WF 560 528
590 561
WE UH 560 528 590 561
WD H 540 510
540 510
WC M+ 4 80 4 47 480 447
WB 4
50
4
14 460 425
WA M 4 20 378 430 378
W9 380 343 4 10 376
W8 L+ 3
60
3
22 370 332
W7 L 3 10 270 310 270
W6
L −
2
00 159 200 159
W5 UL 2 00 159 200 159
W4 2
00 159 200 159
W3 SUL 2 00 1 59 200 159
W2 2 00 1 59 200 159
W1 2 00 1 59 200 159
RAS-25U2FVG-ND RAS-35U2FVG-ND
Cool
(table 1) Indoor fan air flow rate <Cooling>
UH
H
M
L+
L
L −
UL
SUL
Dry
M+
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