4.Use and Operation Instruction
Main board of the input and output interface instructions below
Number
Sign
01
OUT1
02
OUT2
03
OUT3
04
OUT4
05
OUT5
06
AC-L
07
AC-N
08
AI/DI01
09
AI/DI02
10
AI/DI03
11
AI/DI04
12
AI/DI05
13
AI/DI06
14
AI/DI07
15
AI/DI08
16
AI/DI09
17
AI/DI10
18
AI/DI11
19
AI/DI12
AI/DI13
20
PWM_IN
21
22
PWM_OUT
23
0_10V_OUT
24
+5V
25
+12V
26
CN2
27
CN8
28
CN9
29
CN12
30
CN13
Meaning
Compressor ( output 220-230VAC)
Water pump ( output 220-230VAC)
4-way valve ( output 220-230VAC)
High speed of
fan/Chassis heating belt
Low speed of fan (output 220-230VAC)
Live wire ( input 220-230VAC)
Neutral wire ( input 220-230VAC)
Emergency switch
(
Water flow switch
(
input)
System low pressure
System high pressure
System suction temperature (input)
Water input temperature (input)
Water output temperature ( input )
System 1 coil temperature (input)
Ambient temperature( input)
Mode switch/System 2 coil temperature (input)
Master-slave machine switch / Antifreeze
temperature(input)
System exhaust temperature (input)
Compressor current detection/Pressure sensor(input)
Master-slave machine switch / Feedback signal of EC
fan ( input )
AC fan control ( output )
EC fan control ( output )
+5V ( output )
+12V ( output )
Frequency conversion board communications
5 inch color display
Wifi module
Dc fan module
Electronic expansion valve
Program port
The port for centralized control
31
input
)
(
input
)
(
input
)