– 26 –
Air volume
AUTO
Basic fan control
* 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
TSC
TA
[
˚C
]
b
–0.5
c
–1.0
d
–1.5
e
–2.0
f
–2.5
g
–5.0
–5.5
M+(WB)
*1
*2
*3
H (WE)
WE(E)
Line-approximate
No. of revolution of
H and SUL with Tc.
W2(SUL)
Stop
45 45
Tc
34
44 44 33
32 32 21
31 31 20
*A+4 *A+4 *A+4
*A-4 *A-4 *A-4
Air volume
AUTO
activated
Air volume
AUTO
stabizd
Air volume
MANUAL
activated
L
L+
M
M+
H
W6
(L + M) / 2
W9
(M + H) / 2
WC
Air volume
indication
Air volume
Air volume setup
HEAT ON
AUTO
YES
NO
MANUAL
TC 42˚C
Min air volume control
Tc
52
51
42
41
Limited to Min WD tap
*rpm =
(TC – (42 +
)) 10 x (WD – W8) + W8
: In up operation 0, in down operation 0
No limit
*
*1: No. of revolution = (M + –L) x 1 4 + L
*2: No. of revolution = (M + –L) x 2 4 + L
*3: No. of revolution = (M + –L) x 3
4 + L
(Calculated with linear approximation from rpm of
M+ and rpm of L)
Item
2. Indoor fan
motor control
Operation flow and applicable data, etc.
<In heating operation>
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.
[In starting and in stability]
FAN AUTO
FAN Manual
In starting
• 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.
• Room temp. < Set temp. –4°C
In stability
• 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
(Fig. 3)
(Fig. 4)
(Fig. 5)
Cold draft preventive control
(Fig. 6)