Connections explanation
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Compressor ( output 220-230VAC)
Water pump ( output 220-230VAC)
4-way valve ( output 220-230VAC)
High speed of fan ( output 220-230VAC)
Low speed of fan (output 220-230VAC)
Live wire ( input 220-230VAC)
Neutral wire ( input 220-230VAC)
Water flow switch (input)
System low pressure (input)
System high pressure (input)
System suction temperature (input)
Water input temperature (input)
Water output temperature ( input )
System fan coil temperature( input)
Ambient temperature( input)
Mode switch / coil 2 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 )
Frequency conversion board communications
Color line controller communication
Electronic expansion valve
The port for centralized control
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