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P o o l & We l l n e s s
68
Main board of the input and output interface instructions below
Number
Sign
Meaning
01
OUT1
Compressor (output 220-230VAC)
02
OUT2
Water pump (output 220-230VAC)
03
OUT3
4-way valve (output 220-230VAC)
04
OUT4
High speed of fan ( output 220-230VAC)
05
OUT5
Low speed of fan (output 220-230VAC)
06
AC-L
Live wire (input 220-230VAC)
07
AC-N
Neutral wire (input 220-230VAC)
08
AI/DI01
Emergency switch (input)
09
AI/DI02
Water flow switch (input)
10
AI/DI03
System low pressure (input)
11
AI/DI04
System high pressure (input)
12
AI/DI05
System suction temperature (input)
13
AI/DI06
Water input temperature (input)
14
AI/DI07
Water output temperature (input)
15
AI/DI08
System fan coil temperature (input)
16
AI/DI09
Ambient temperature (input)
17
AI/DI10
Mode switch (input)
18
AI/DI11
Master-slave machine switch / Antifreeze temperature (input)
19
AI12(50K)
System Exhaust temperature (input)
20
0_5V_IN
Compressor current detection/Pressure sensor (input)
21
PWM_IN
Master-slave machine switch / Feedback signal of EC fan (input)
22
PWM_OUT
AC fan control (output)
23
0_10V_OUT
EC fan control (output)
24
+5V
+5V (output)
25
+12V
+12V (output)
26
GND
Frequency conversion board communications
27
485_B1
Frequency conversion board communications
28
485_A1
Frequency conversion board communications
29
12V
Frequency conversion board communications
30
GND
Color line controller communication
31
485_B2
Color line controller communication
32
485_A2
Color line controller communication
33
12V
Color line controller communication
34
CN9
Electronic expansion valve
USAGE AND OPERATION