High Wall, Heat Pump Type
Service Manual
36
Toshiba
8-3-2. In Heating Operation
(This operation controls the fan speed at the 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)
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. 3 and Table 8-3-2.
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.
5 according to the set temperature and room
temperature.
3) Min. air flow rate is controlled by temperature of
the indoor heat exchanger (TC) as shown in
Fig. 4.
4) Cold draft prevention, the fan speed is
controlled by temperature of the indoor heat
exchanger (TC) as shown in Fig. 6.
In starting and in stability
Table 8-3-2 Indoor fan air flow rate (Heating)
Fan speed setup
HEAT ON
AUTO
YES
NO
MANUAL
TC 42°C
Min air flow rate control
TC
52
51
42
41
Limited to Min WD tap
* Fan speed =
(TC – (40 + a)) / 10 x (WD – W8) + W8
a : In up operation 1, in down operation 0
No limit
*
(Fig. 3)
(Fig. 4)
L
L+
M
M+
H
W8
(L+M)/2
WB
(M+H)/2
WE
Indication
Fan speed
Hi Power
W9
(L+M)/2
(M+H)/2
WD
WF
M+(WD)
Line-approximate
M+ and SUL with Tc.
SUL (W2)
Stop
46
46
TC
34
45
45
33
33
33
21
32
32
20
*A+4
*A+4
*A+4
*A-4
*A-4
*A-4
Fan speed MANUAL in starting
Fan speed AUTO in stability
Fan speed AUTO in starting
(Fig. 6)
* No limitation while fan speed MANUAL mode is in stability.
* A: When Tsc 24, A is 24, and when Tsc < 24, A is Tsc
Tsc: Set value
Cold draft preventive control
Basic fan control
Fan speed
TA - Tsc
[°C]
b
–0.5
c
–1.0
d
–1.5
e
–2.0
f
–2.5
g
–5.0
–5.5
L+ (W9)
M+ (WD)
*1
*2
*3
H (WE)
*1: Fan speed = (M+–L+)x1/5+L+
*2: Fan speed = (M+–L+)x2/5+L+
*3: Fan speed = (M+–L+)x3/5+L+
*4: Fan speed = (M+–L+)x4/5+L+
(Calculated with linear approximation from M+ and L+)
*5: Fan speed = (H–M)x1/5+M
*6: Fan speed = (H–M)x2/5+M
*7: Fan speed = (H–M)x3/5+M
*8: Fan speed = (H–M)x4/5+M
(Calculated with linear approximation from H and M)
(Fig. 5)
M(WB)
Hi Power
*6
*5
*7
*8
*4
In starting
In stability
FAN
AUTO
• Until 12 minutes
passed after operation
start.
• When 12 to 25 minutes
passed after operation
start and the room
temperature is 3°C or
more lower than the set
temperature.
• When 12 to 25 minutes
passed after operation
start and the room
temperature is higher
than the set temperature
–3°C
• When 25 minutes or more
passed after operation
start
FAN
Manual
• Room temperature
< Set temperature –4°C
• Room temperature
≥
Set temperature –3.5°C
Fan speed
level
RAS-07PKVP-E
RAS-07PKVP-ND
RAS-10PKVP-E
RAS-10PKVP-ND
RAS-13PKVP-E
RAS-13PKVP-ND
Fan
speed
(rpm)
Air flow
rate
(m
3
/h)
Fan
speed
(rpm)
Air flow
rate
(m
3
/h)
Fan
speed
(rpm)
Air flow
rate
(m
3
/h)
WF
1170
645
1200
665
1240
695
WE
UH
1170
645
1200
665
1240
695
WD
H
1070
575
1100
595
1140
625
WC
M+
980
510
1010
530
1050
560
WB
900
455
930
475
960
495
WA
M
880
440
880
440
880
440
W9
850
420
850
420
850
420
W8
L+
750
345
750
345
750
345
W7
L
750
345
750
345
750
345
W6
L–
650
275
650
275
650
275
W5
UL
650
275
650
275
650
275
W4
650
275
650
275
650
275
W3
SUL
650
275
650
275
650
275
W2
560
210
560
210
560
210
W1
420
110
420
110
420
110
+00A08-010_01EN_SVM_HighWallHeatPump.book Page 36 Wednesday, March 4, 2009 11:22 AM
