Indoor Fan Motor Control - Toshiba RAS-10SAVP-E Service Manual

Toshiba ilmalämpöpumppujen myynti, huolto ja asennus: Jäähdytinpalvelu RefGroup Oy, Vantaa
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, respectively.
(Table 1)
COOL ON
Fan speed setup
AUTO
Ta
[ ˚C ]
+2.5
a
+2.0
b
+1.5
+1.0 c
d
+0.5
e
Tsc
Fan speed
COOL HEAT
level
WF UH
WE H
WD UH M+
WC H
WB M+ M
WA
W9 M L+
W8 L
W7 L+ L–
W6 L
W5 L– UL
W4 UL
W3 SUL
W2 SUL
W1
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 : Fan speed = (M + –L) x 2/4 + L
*4
*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-B10SKVP-E
RAS-10SKVP-ND
DRY
Fan speed Air flow rate
(rpm) (m
1630
1480
1400
1350
1200
1110
980
910
L+ 900
L 860
L– 820
UL 730
SUL 630
600
600
www.ilmalämpöpumput.com
(Fig. 1)
Fan speed
W6
(L + M) / 2
W9
(M + H) / 2
WC
(Fig. 2)
RAS-B13SKVP-E
RAS-13SKVP-ND
Fan speed Air flow rate
3 /h) (rpm) (m
695 1650 705
615 1530 640
575 1440 595
550 1390 570
475 1240 495
430 1150 450
365 1010 380
325 910 325
320 900 320
300 860 300
280 820 280
235 730 235
185 630 185
170 600 170
170 600 170
– 31 –
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.
RAS-B16SKVP-E
RAS-16SKVP-ND
Fan speed Air flow rate
3 /h) (rpm) (m
1650 705
1580 670
1550 650
1500 625
1350 550
1230 490
1080 415
970 355
960 350
920 330
900 320
790 265
640 190
600 170
600 170
3 /h)