– 3
2
–
Item
2. Indoor fan
motor control
Operation flow and applicable data, etc.
<In heating operation>
Description
[In starting and in stability]
(Fig. 3)
(Fig. 4)
(Fig. 5)
Cold draft preventive control
(Fig. 6)
L
L+
M
M+
H
W8
(L + M) / 2
WA
(M + H) / 2
WE
Indication
Fan speed
Fan speed setup
HEAT ON
AUTO
YES
NO
MANUAL
TC
≥
108ºF (42 C)
Min air flow rate control
Tc ºF (ºC)
Limited to Min WD tap
* Fan speed =
(TC –
– W8) + W8
No limit
*
Fan speed
AUTO
Basic fan control
* No limitation while fan speed MANUAL mode is in stability.
* A: When Tsc
≥
75°F (24°C), A is 75°F (24°C), and
Tsc: Set value
b
c
d
e
f
g
L+ (W9)
M+ (WD)
*1
*2
*3
H (WE)
H (WE)
Linear-approximate
H and SUL with Tc.
SUL (W2)
Stop
115 (46) 115 (46)
Tc
93 (34)
*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
*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+)
Ta °F [°C]
TSC
-
1.0
(-0.5)
-
2.0
(-1.0)
-2.7 (-1.5)
-
3.5
(-2.0)
-4.5 (-2.5)
-9.0 (-5.0)
-
10.0
(-5.5)
°F (°C)
113 (45) 113 (45) 91 (33)
91 (33) 91 (33)
70 (21)
90 (32) 90 (32) 68 (20)
when Tsc < 75°F (24°C), A is Tsc
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 5.4°F (3°C) or lower than set temp.
• Room temp. < Set temp. -7.2°F (– 4°C)
In stability
• When 12 to 25 minutes passed after operation start
and room temp. is higher than [set temp. -5.4ºF (–3°C)]
• When 25 minutes or more passed after operation start
• Room temp.
≥
Set temp. -6.3°F (–3.5°C)
FILE NO. SVM-13070
106 (41)
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
for prevent high temperature of heat
exchanger.
4) Cold draft prevention, the fan speed
is controlled by temperature of the
5) In order to prevent Cold draft when
compressor stop during heating
operation. Then louver will move to
upper position and fan speed will
reduce or off.
126 (52)
124 (51)
108 (42)
1
indoor heat exchanger (Tc) as shown
in Fig. 6 for keep warm temperature
of air flow.
