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11-3. ELECTRICAL CIRCUIT
(1) Wiring diagram (Panel)
LS1
BLK
BLK
UK1
LS21
WHT
1
2
WHT
CN2G
1
(BLK)
MU1
CN2F
(BLK)
1
UK1
LS21
WHT
2
WHT
1
MU1
ON
Symbol
U.B
FUSE
SW22
UK1
MU1
LS21
I.B
(2) Check point of trouble
<LED display>
Turn OFF
Blink
One blink
Two blinks
<controller board>
Check item
Up/down controller
P.C. board supply
voltage
Up/down machine
supply voltage
<Up/down machine>
Check item
Storage detection
switch
Tension detection
switch
Motor
Entwining wires
B
O
Y
R
R
L
N
N
W
CN3G
3
2
1
2
(BLK)
2
1
2
CN2E
(RED)
CN2B
CN2C
(WHT)
(WHT)
1
2
1
2
CN3A
SW22
B
B
R
R
L
E
L
E
(RED)
1 2 3 4 5 6 7 8 9 10
K
K
D
D
Name
Auto grille controller board
Fuse (3.15A)
Switch (Lowering distance set up)
Up/down machine
Motor (Up/down)
Limit switch (tension detection)
Indoor controller board
: No power supply
: Storage detection switch ON (short)
: Storage detection switch OFF (open)
: Tension detection switch OFF (open)
Check point
Normal
CN3A
AC198~264V
(between 3-5)
CN2B,CN2C
DC10~12V
Check point
Normal
CN2E
open or short
CN2F,CN2G
open or short
CN2B,CN2C
5~20
Retension :
Pull wire
about 2kgf
Panel
Indoor unit
3
9
W.B
CNB
1
(WHT)
2
I.B
BZ
3
4
SW1
5
6
7
FUSE
SW2
8
RU
9
GRN/YLW
R
R
B
L
E
E
D
D
K
5
3
1
U.B
Symbol
W.B
Wireless remote controller board
BZ
Buzzer
RU
Receiver
SW1
Emergency switch (heating/down)
SW2
Emergency switch (cooling/up)
LS1
Limit switch (storage detection)
R.B
Wired remote controller
Remarks
Check when instructing up/down with LED
blinking once.
Check contents
Check if it is short when pressing push switch.
Check if it is short when wire b is tensioned.
Check if it is not open or short.
Check if wire is drawn out by pulling with 3kgf.
36
CN90
(WHT)
CN3G
(BLK)
CN22
(BLU)
CNAC
(WHT)
TB6
TB5
1
2
Name
1
2
R.B
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