–
27
–
Item
2. Indoor fan
motor control
Operation flow and applicable data, etc.
<In heating operation>
Description
1) When setting the fan speed to L,
L+, M, M+, H or Quiet 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.
[In starting and in stability]
(Fig. 3)
(Fig. 4)
(Fig. 5)
Cold draft preventive control
(Fig. 6)
Fan speed
AUTO
Basic fan control
* 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
TSC
TA
[˚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)
H (WE)
Line-approximate
H 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
L
L+
M
M+
H
W8
(L + M) / 2
WB
(M + H) / 2
WE
Indication
Fan speed
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 –
– W8) + W8
No limit
*
*1: Fan speed = (M + -L+) x 1 4 + L+
*2: Fan speed = (M + -L+) x 2 4 + L+
*3: Fan speed = (M + -L+) x 3 4 + L+
(Calculated with linear approximation from M+ and L+)
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
5) In order to prevent Cold draft when
compressor step during heating
operation. Then louver will move to
upper position and fan speed will
reduce or off.
FILE NO. SVM-12059
3) Min air flow rate is controlled by
temperature of the indoor heat
exchanger (Tc) as shown in Fig. 4
for prevent high temperature of heat
exchanger.
4) Cold draft prevention, the fan speed
is controlled by temperature of the
indoor heat exchanger (Tc) as shown
in Fig. 6 for keep warm temperature
of air flow.
