69
Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
Product Description
4
Overload protection
● The cable of the overload protection should be 2 x min. 0.5 mm² and have a double
insulated PVC- or rubber-jacket cable.
● Maximum total cable length: 30 m
Optional PCB CZ-NS4P
Overview of the external interfaces
Vcc
Bit1
Bit2
N O CN O CL N Cool Heat L N Cool Heat
CN206
CN205
CN203CN202CN201
CN204 CN207
CN208 CN209
CN210
1 1 1
11 1
1
1
1
1
2
2
2
2
3
3
3
3
4
4
4
4
5
6
2 2 2
22 2
3 3 3
33 3
4 4 4
44 4
5
55
6
66
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
Water temperature
sensor for heating circ. 2
Water temperature
sensor for heating circ. 1
Demand control signal
Solar temperature sensor
Room temperature
sensor for heating circ. 1
Temperature sensor for
buffer tank
Temperature sensor for
swimming pool
Terminals Connection Function Condition Cable cross
section
CN201
1 to 4
Optional thermostat 2 Heating / cooling demand from thermostat.
LN=230VAC,Heat=heating,
Cool=cooling
Maximum total cable length: 50 m 4 × min.
0.5 mm²
CN202
1 to 4
Optional thermostat 1
CN203
1 to 3
Mixing valve 1 230VAC,N=Neutral,O=Open,
C=Closed=Directionreversal
Actuation duration: 30 to 120 s
Maximum total cable length: 50 m 3 × min.
1.5 mm²
CN203
4 to 6
Mixing valve 2
CN204
1 to 2
Temperature sensor
for swimming pool
PAW-A2W-TSHC
Maximum total cable length: 30 m 2 × min.
0.3 mm²
CN204
3 to 4
Supply temperature
sensor for heat. c. 2
PAW-A2W-TSHC
For measuring the water temperature in the
respective heating circuit
Maximum total cable length: 30 m 2 × min.
0.3 mm²
CN204
5 to 6
Supply temperature
sensor for heat. c. 1
PAW-A2W-TSHC
CN205
1 to 2
Room temperature
sensor for heat. c. 2
PAW-A2W-TSRT
Maximum total cable length: 30 m 2 × min.
0.3 mm²
CN205
3 to 4
Room temperature
sensor for heat. c. 1
PAW-A2W-TSRT