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12
WIRING DIAGRAMS (CONTINUED)
1
2
3
OUT DOOR
FAN
RED
YELLOW
BLACK
Y/G
U
V
W
RY1
CN6
CN2
CN7
CN8
CN3
CN4
CN10
CN1
COMPRESSOR
Y/G
D
E
R
E
U
L
B
K
C
A
L
B
&21'(16(5
7(03(5$785(6(1625
OUTDOOR AMBIENT
TEMPERATURE SENSOR
WHITE
BLACK
',6&+$5*(6(1625
6
OUTDOOR
MAIN
PCB
E
U
L
B
K
C
A
L
B
D
E
R
CN13
CN12
L-OUT
C
I
N
O
R
T
C
E
L
E
P
X
E
E
V
I
S
N
A
E
V
L
A
V
CN18
4
-W
AY
CN414
5
2
7
&
$
(
5
BLUE
BLUE
U
V
W
Y/G
CN6-1
Y/G
D
E
R
/ / 6 / /
72,1'22581,7
32:(56833/<
E
U
L
B
/ /
3
CN14
CN15
1
&
7
$
(
+
HEATER 1
2
R
E
T
A
E
H
Fig. 9 – Wiring Diagram for 18K 208/230V
Table 10—Outdoor Unit Control Board
CODE
INPUT or OUTPUT VALUE
CN7
、
CN8
Input: 230V High voltage
CN2
Output: Connection of the high voltage
CN3
、
CN4
Output: High voltage for 4-way control
CN11
、
CN16
Output: 230V High voltage for HEATER
CN5
Output: Pulse (0-320V) for DC FAN
CN12
、
CN13
Output: Connection of the high voltage
U V W
Output: Pulse (0-320V) for compressor
CN10
Input: Pin 1 (5V) Pin 2 (0-5V)
CN1
Input: Pin 3-4 (5V) Pin 2 (0V),Pin 1,Pin 5 (0-5V)
CN18
Output: Pin 5&6 (12V) Pin 1-Pin 4:Pulse waveform, (0-12V)