Toshiba RAS-077SKV-E7 - Indoor Fan Motor Control

– 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+ : 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+ 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)
FILE NO. SVM-15004
RAS-077SKV-E7 RAS-107SKV-E7
Cooling Heating Cooling Heating
Fan speed Air flow rate
(rpm) (m3/h)
Fan speed Air flow rate
(rpm) (m3/h)
Fan speed Air flow rate
(rpm) (m3/h)
Fan speed Air flow rate
(rpm) (m3/h)
WF UH 1100 502 1150 534 1200 565 1200 565
WE UH H 1100 502 1150 534 1200 565 1200 565
WD H M+ UH 1050 471 1050 471 1150 534 1100 502
WC M+ H 920 390 1000 440 1020 453 1000 440
WB M M+ 900 378 950 409 950 409 1000 440
WA M M 800 316 900 378 900 378 900 378
W9 L+ 770 297 820 328 850 347 870 359
W8 L+ L L+ 750 284 700 253 800 316 750 284
W7 L L- 650 222 660 229 700 253 700 253
W6 L- L 600 191 600 191 650 222 700 253
W5 UL UL L- 580 179 600 179 620 204 650 222
W4 UL 580 179 580 179 620 204 580 179
W3 SUL SUL/SL- 550 160 550 160 580 179 550 160
W2 SUL 520 141 520 141 520 141 520 141
W1 500 129 500 129 500 129 500 129
RAS-137SKV-E7
Cooling
Heating
Fan speed Air flow rate
(rpm) (m3/h)
Fan speed Air flow rate
(rpm) (m3/h)
WF UH 1250 596 1250 596
WE UH H 1250 596 1250 596
WD H M+ UH 1200 565 1150 534
WC M+ H 1070 484 1100 502
WB M M+ 1000 440 1050 471
WA M M 950 409 900 278
W9 L+ 900 278 850 247
W8 L+ L L+ 850 247 800 316
W7 L L- 750 284 760 291
W6 L- L 700 253 700 253
W5 UL UL L- 650 222 700 253
W4 UL 620 204 580 179
W3 SUL SUL/SL- 600 179 550 160
W2 SUL 520 141 520 141
W1 500 129 500 129
Fan speed
level
Fan speed
level
Cool Heat Dry
Mode
Mode
Cool Heat Dry