Indoor Fan Motor Control; In Cooling Operation - Toshiba RAS-B10GKVP-E Service Manual

Item
2. Indoor fan <In cooling operation>
motor control
(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)
COOL ON
Fan speed setup
AUTO
Ta
[ ˚C ]
+2.5
a
+2.0
b
+1.5
c
+1.0
d
+0.5
e
Tsc
COOL
Fan speed
FAN HEAT
level
ONLY
WF UH
WE H
WD UH M+
WC H
WB M+
WA M
W9 M L+
W8 L
W7 L+ L–
W6 L
W5 L– UL
W4 UL
W3 SUL
W2 SUL
W1
Tel: 01823 665660
Heronhill - for all your Toshiba requirements
Operation flow and applicable data, etc.
MANUAL
Indication
L
L+
M
M+
H
Air volume AUTO
M+(WB)
*3 *3 : Fan speed = (M + –L) x 3/4 + L
*4 *4 : Fan speed = (M + –L) x 2/4 + L
*5 *5 : Fan speed = (M + –L) x 1/4 + L
(Linear approximation
L(W6)
from M+ and L)
(Table 1) Indoor fan air flow rate
RAS-B10GKVP-E
RAS-M10GKCVP-E
DRY
Fan speed Air flow rate
(rpm) (m
1630 684
1480 609
1400 569
1350 544
1200 468
1110 423
980 358
910 323
L+ 900 318
L 890 313
L– 880 308
UL 730 232
SUL 580 157
430
400
– 38 –
www.heronhill.co.uk
* The fan speed broadly varies due
(Fig. 1)
Fan speed
W6
1) When setting the fan speed to L,
(L + M) / 2
W9
(M + H) / 2
WC
2) When setting the fan speed to
(Fig. 2)
RAS-B13GKVP-E
RAS-M13GKCVP-E
Fan speed Air flow rate
3 /h) (rpm) (m 3 /h)
1650 694
1530 634
1440 589
1390 564
1240 488
1150 443
1010 373
910 323
900 318
890 313
880 308
730 232
580 157
82 430 82
67 400 67
Description
* Symbols
UH : Ultra High
H : High
M+ : Medium+
M : Medium
L+ : Low+
L : Low
L- : Low–
UL : Ultra Low
SUL : Super Ultra Low
to position of the louver, etc.
The described value indicates one
under condition of inclining
downward blowing.
L+, M, M+ or H on the remote
controller, the operation is
performed with the constant
speed shown in Fig. 1.
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.
RAS-B16GKVP-E
RAS-M16GKCVP-E
Fan speed Air flow rate
(rpm) (m 3 /h)
1650 694
1580 659
1550 644
1530 634
1380 559
1230 483
1080 408
970 353
960 348
950 343
940 338
790 263
640 187
490 112
400 67
Fax: 01823 665807