Haier Smart Power Series Service Manual page 158

The PCB connectors description as following table:
Connector Description
CH3
CH4
COMM (communication
CH5
Wired controller port
CN1
(C,B,A)
TRANS2(Transformer
CN3
secondary side)
CN4
TRANS1(Transformer
CN5
primary side)
CN6 DC FAN COMM
CN7 AIR LINK/E.A.O
CN8 ANION
CN9 PUMP
Connected to
Indoor terminal block
L
terminal label 2
Indoor terminal
N
blockterminal label 1
Indoor terminal block
port) terminal label 3
Wired controller
Transformer secondary
side connector
WIFI WIFI MODULE
Transformer primary
side connector
Fan motor driver board's
Relay which for fresh air
motor/AC external alarm
Output E.A.O)
Relay for heater
Pump motorconnector
Port function
PCB AC power supply
Communication port
for indoor unit and
outdoor unit
Wired controller power
supply and
wired controller
communication
Transformer
secondary side output
Wifi module power
supply and
wifi module
communication
Transformer primary
side input
Communication port
for indoor main control
CN1 PCB and fan motor
driver board
AC output for fresh air
motor/AC output when
error occurs
DC 12V for relay
AC output for pump
motor
156
Smart Power
Remark
220-240VAC input
I.D. PCB A,B,C
corresponding to
wired controller A,B,C
in sequence
two group of DC 12V
into CN3
5V,DATA,GND
corresponding to
5V,DATA,GND in
sequence
1.contact rating-230
VAC,3A)
2.E.A.O valid only
when SW1-6&SW1-
7&SW1-8 has been
set to ON ON OFF
get realy from local
market
220-240VAC output