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Electric wiring and the application
Port
CN24
CN46
CN45
CN40
CN12
CN41
CN20
CN25
CN29
CN30
CN27
CN9
CN39
CN2
CN6
CN31
low-power consumption
CN3
CN33
CN28
CN34
Room thermostat 1
CN13
Room thermostat 2
CN22
CN32
CN18
CN15
CN16
CN17
CN35
CN13
Antifreeze Heater
CN37
CN42
CN43
CN23
CN10
CN31
CN36
Port Definition
Power Input
Pd
Ps
HPS
Tao
Td
Ts
Te1
CT
Two
Twi
Thi
Tho
LP
FS
PUMP_0-FB
INV-COM
I/O
Wired controller
Modbus
Tai_1
Twzone_1
Tai_2
Twzone_2
T_buffer
T_tank
Ext. control
OLP-1
Tz
LEV
LEVb
4WV
SV2
Chi
CH assy
PUMP_0
PUMP_1
PUMP_2
3 way valve
Mixing valve
Floor Valve
Tank Heater
Heater 1
Heater 2
Gas Boiler
ERROR
N
FM
Function Description
220V/50HZ Input
High pressure sensor
Low pressure sensor
High pressure switch
Ambient temperature sensor
Compressor discharge sensor
Compressor suction sensor
Defrost detection sensor
Input current detection(Three phase unit)
Water outlet sensor of Plate heat exchanger
Water inlet sensor of Plate heat exchanger
Liquid tube of Plate heat exchanger
Gas tube of Plate heat exchanger
Low water pressure switch
Water flow switch
Built-in water pump control signal
INV module communication port
communication with ATW-A02
communication with Display controller
low-power consumption
THIRD PARTY PROTOCOLS modbus or Wifi modbus
Zone 1 indoor temperature sensor
Water Temperature of zone 1 after mixing valve
Zone 2 indoor temperature sensor
Water Temperature of zone 2 after mixing valve
Buffer tank sensor
Domestic hot water tank sensor
External control unit ON/OFF
External electric heating protector
Water outlet sensor when use external electric heating
Zone1 Third-party controller
Zone2 Third-party controller
Electronic expansion valve control
Electronic expansion valve control
Four-way valve
Injection cooling valve
Compressor electric heating belt
Anti-freezing electric heating of chassis
Built-in water pump power
Anti-freezing electric heating of water pipes
Zone 1 circulating pump (auxiliary pump) 12V control signal
Zone 2 circulating pump (auxiliary pump) 12V control signal
Three-way valve L1 line(220V) output
Three-way valve K1 line(220V) output
Water mixing valve L2 line(220V) output
Water mixing valve K2 line(220V) output
Floor heating valve(220V) output
Electric heating of water tank(220V) output
1kw electric heating passive signal(power free)
3kw electric heating passive signal(power free)
Gas Boiler passive signal(power free)
ERROR output passive signal(power free)
AC220V output N line output
Flowmeter
27
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