Toshiba RAS-10JKVP-E Service Manual page 26

Item
2. Indoor fan <In heating operation>
motor control
Air volume setup
Basic fan control
[ ˚C ]
TA
b
TSC
c
–0.5
d
–1.0
e
–1.5
f
–2.0
g
–2.5
–5.0
–5.5
*1: No. of revolution = (M + –L) x 1
*2: No. of revolution = (M + –L) x 2
*3: No. of revolution = (M + –L) x 3
(Calculated with linear approximation from rpm of
M+ and rpm of L)
[In starting and in stability]
FAN AUTO • Until 12 minutes passed after operation start
• When 12 to 25 minutes passed after operation start
and room temp. is 3°C or lower than set temp.
FAN Manual • Room temp. < Set temp. –4°C
Operation flow and applicable data, etc.
HEAT ON
MANUAL
Air volume
indication
L
L+
AUTO
M
M+
H
YES
TC 42˚C
Min air volume control
NO
Tc
52
51
42
41
* rpm =
(TC – (42 + ))
: In up operation 0, in down operation 0
Air volume
AUTO
M+(WB)
*1
*2
*3
H (WE)
4 + L
4 + L
4 + L
(Fig. 5)
In starting
(Fig. 3)
Air volume
W6
(L + M) / 2
W9
(M + H) / 2
WC
Limited to Min WD tap
*
No limit
10 x (WD – W8) + W8
Cold draft preventive control
Tc
45 45 34
44 44 33
32 32 21
31 31 20
*A+4 *A+4 *A+4
*A-4 *A-4 *A-4
Air volume Air volume Air volume
AUTO AUTO MANUAL
activated stabizd activated
* No limitation while air volume MANUAL mode is stabized.
* A: When Tsc 24, A is 24, and when Tsc < 24, A is Tsc
Tsc: Setup value
• When 12 to 25 minutes passed after operation start
and room temp. is higher than (set temp. –3°C)
• When 25 minutes or more passed after operation start
• Room temp. ≥ Set temp. –3.5°C
– 26 –
Description
1) When setting the air volume to
M, M+, L, L-, or H on the remote
controller, the operation is
performed with the constant air
volume of the air volume level
shown in Fig. 3 and Table 1.
2) When setting the air volume to
AUTO on the remote controller,
No. of revolution of the fan motor
is controlled to the air volume
level shown in Fig. 5 according to
the setup temperature and room
temperature.
3) Min air volume is controlled by
temperature of the indoor heat
exchanger (Tc) to one shown in
Fig. 4.
4) Cold draft prevention, the fan
revolution is controlled by
temperature of the indoor heat
exchanger (Tc) as shown in
Fig. 6.
(Fig. 4)
WE(E)
Line-approximate
No. of revolution of
H and SUL with Tc.
W2(SUL)
Stop
(Fig. 6)
In stability