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Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
Installation
6
6.8.2.3 Brief Overview of the external interfaces
All in One unit, hydrokit and mono-bloc systems J or H Generation
Main PCB
2-way valve 3-way valve
Optional
thermostat 1
Electric tank heater
H C N L
C O N C O N
CN3
CN2
CN1
CN4
CN5
CN6
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
5
6
1
1
2
2
3
3
4
4
5
6
Overload protection for
electric tank heater
External control
Operating unit
Bivalent heating source
Additional pumps
Room temperature
sensor heating circuit 1
Outdoor temperature
sensor
Tank temperature sensor
Optional PCB CZ-NS4P
Vcc
Bit1
Bit2
N O C
N O C
L N Cool Heat L N Cool Heat
CN206
CN205
CN203
CN202
CN201
CN204
CN207
CN208
CN209
CN210
1
1
1
1
1
1
1
1
1
1
2
2
2
2
3
3
3
3
4
4
4
4
5
6
2
2
2
2
2
2
3
3
3
3
3
3
4
4
4
4
4
4
5
5
5
6
6
6
Optional thermostat 2
Optional thermostat 1
Mixing valve 1
Mixing valve 2
External compressor
switch
Heating/ Cooling Switch
SG signal
Swimming pool pump
Solar station
Error
signal
Pump for heating circuit 1
Pump for heating circuit 2
Room temperature
sensor for heating circ.
2
W
ater temperature
sensor for heating circ.
2
W
ater temperature
sensor for heating circ.
1
Demand control signal
Solar temperature sensor
Room temperature
sensor for heating circ.
1
Temperature sensor for
buf
fer tank
Temperature sensor for
swimming pool
