Toshiba RAS-B10J2FVG-E Service Manual page 35

Item
2. Indoor fan <In heating operation>
motor control
HEAT ON
Fan speed setup
AUTO
TC ≥ 42 C
NO
(Fig. 4)
Basic fan control
TA-Tsc [°C]
b
TSC
c
- 0.5
d
- 1.0
e
- 1.5
f
- 2.0
g
- 2.5
- 5.0
- 5.5
*1: Fan speed = (M + −L+) x 1/5 + L+
*2: Fan speed = (M + −L+) x 2/5 + L+
*3: Fan speed = (M + −L+) x 3/5 + L+
*4: Fan speed = (M + −L+) x 4/5 + L+
(Calculated with linear approximation from M+ and L+)
*5: Fan speed = (H −M) x 1/5 + M
*6: Fan speed = (H −M) x 2/5 + M
*7: Fan speed = (H −M) x 3/5 + M
*8: Fan speed = (H −M) x 4/5 + M
(Calculated with linear approximation from H and M)
Operation flow and applicable data, etc.
MANUAL
Indication
L
L+
M
M+
H
YES
Min air flow rate control
Limited to Min WD tap
Tc
52
51
42
41
No limit
* Fan speed =
(TC –
Fan speed
Hi Power
L+ (W9) M(W8)
*1
*2
*3
*4
M+(WD)
H(WE)
(Fig. 5)
(Fig. 3)
Fan speed Hi-POWER
W8 W9
(L + M) / 2 (L + M) / 2
WB WD
(M + H) / 2 (M + H) / 2
WE WF
*
– W8) + W8
TC
46 46
45 45
33 33
*5
32 32
*6
*A+4 *A+4
*7 *A-4 *A-4
*8
* 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
- 35 -
Description
1) When setting the fan speed to L,
L+, M, M+ or H on the remote
controller, the operation is per-
formed with the constant speed
shown in Fig. 3 and Table 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. 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.
Cold draft preventive control
34
H (WE)
33
Line-approximate
M+and SUL with TC.
21
20
*A+4
SUL (W2)
*A-4
Stop
Fan speed MANUAL in starting
Fan speed AUTO in stability
Fan speed AUTO in starting
(Fig. 6)