Control System Wiring Diagram
5
Y6
Y5
Y4
Y3
Y2
Y1
NN
N
N
N
N
N
L
N
FG GND
10V
SPD
SPD 10V
GND
FG
P+
N-
CT
1
GN
D
5V
SWCLK
SWDAT
R
S
485
X6
X5
X4
X3
X2
X1
RT7
RT6
RT5
RT
4
RT3
RT2
RT1
TX RX
GND
5V
5V
E4A6
0000FF
170623 V2.
0
AC
O
U
T
DC
I
N
12V GND
B2
B1
RT8
CT
2
Y7
Y8
Y9
PE
EC
1
EC
2
CN2
CN28
CN3
J1
CN7
CN6
CN5
CN
4
CN1
CN15
CN16
CN17
CN18
CN19
CN20
CN21
CN22
CN
2
3
J4
J5
P1
6
P1
2
P1
3
P1
4
P1
5
P
1
0
P9
P4
P1
1
P
8
P
5
P6
P7
P1
9
P1
P1
7
P1
8
P2
P3
J2
J6
SPD 10V
EXV
2
EXV1
EC
2
CN
1
1
D1
J2
CN
1
4
GND
RST
SA
FAN
Power supply
By
pa
ss
Va
lv
e
on
of
f
EA
FAN
K1
N
M1
Compre
ss
or
N
L
Fo
ur-
w
ay
va
lv
eK
el
ec
tr
on
ic
expan
sio
n
val
ve
temp
12
V
0V
GN
D
4
85A1
4
85B1
GN
D
4
85A2
4
84B2
HG
1
HG
2
RY1
CN1
CN6
RY
2
CN7
RY
3
CN3
CN8
C
N9
O2 IN2 O1 IN1
V4
GND
V3
VCC
GND
VCC
V2
V1
GND
VCC
2
014-11-06
Monito
r b
oa
rd
sw
it
ch
in
g
p
ow
er
supply
SA temp
compressor discharge temp
OA temp
compressor suction temp
SA side DX coils in-tube temp
EA side DX coils in-tube temp
SA side DX coils inlet air temp
SA side DX coils outlet air temp
EA side DX coils inlet air temp
EA side DX coils
outlet air temp.
Touch screen controller
220V/50HZ
HP
LP
Fire alarm
4
4
1) Wiring should be done by professional people. Power supply 1-1.5mm
²，
other
wires
0
.
5-0
.
75mm
²
2) Wires of
the
controller
and monitor
board
should
be
shielded twisted pair wires
