Page
45
of
59
SK2015
SWC
‐
V
‐
EC
‐
001
D.4.4.
Control
Logic
1.
Power
On
Setting
When
any
fan
speed
is
selected,
the
unit
is
turned
on.
When
all
of
the
fan
speed
inputs
(H/M/L)
are
off,
the
unit
is
turned
off.
2.
Swing
/
Louver
When
the
unit
is
turned
on,
the
louver
will
open
to
the
largest
angle
at
100º,
then
move
to
the
operating
angle
at
87
º.
When
the
unit
is
turned
off,
the
louver
will
close.
3.
Signal
Input
When
Auto
speed
is
turned
ON,
the
unit
is
turned
on
and
the
motor
runs
at
200
RPM.
EC
motor
RPM
will
be
changed
by
the
signal
voltage.
D.4.5.
LED
Indication
For
all
units
Power
/
Operation
LED
light
(both
green)
Unit
on
Operation
LED On,
Power
LED
Off
Unit
in
standby
Power
LED On,
Operation
LED
Off
D.4.6.
Error
Description
For
all
units
‐
Operation
LED
light
(Green)
Item
Blink
Reason
Remedy
Indoor
coil
sensor
1
failure
Green
LED
blinks
4
times,
stops
for
3s
Ti1
sensor
connection
is
unplugged
or
damaged.
1.
Check
if
Ti1
plug
is
connected
or
not.
2.
Check
if
sensor’s
resistance
is
correct
or
not.
EC
motor
failure
Green
LED
blinks
9
times,
stops
for
3s
No
EC
motor
feedback
1.
Check
if
EC
motor’s
wires
are
connected.
2.
Check
the
EC
motor
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