68 Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
Product Description
4
Electric heater of the domestic hot water tank
● The maximum power output of the electric tank heater should be maximum 3 kW.
● The cable of the electric tank heater must be 3 x min. 1.5 mm² and conform to the
code 60245 IEC 57 or higher.
● Maximum total cable length: 50 m
Additional pump:
● The cable of the additional pump must be 2 x min. 1.5 mm² and conform to the code
60245 IEC 57 or higher.
● Maximum total cable length: 50 m
Bivalent heat source:
● The connecting cable of the bivalent heat source must be 2 x min. 0.5 mm² and
conform to the code 60245 IEC 57 or higher.
● Maximum total cable length: 50 m
External control (remote switch):
● Use a single pole switch with a contact distance of min. 3.0 mm as remote switch.
● The cable must be 2 x min. 0.5 mm² and have a double insulated PVC or rubber
jacket cable.
● The switch used must bear the CE mark.
● The maximum operating current must be less than 3 Arms.
● Maximum total cable length: 50 m
Temperature sensor of the hot water tank:
● The temperature sensor of the hot water tank must be a conductor of heat. The
following gure shows the characteristic of the sensor.
Characteristic curve of the tank temperature sensor
Resistance (Ω)
Temperature (°C)
-30 -20 -10 0 10 20 30
16000
14000
12000
10000
8000
6000
4000
2000
0
● The cable must be 2 x min. 0.3 mm² and have a double insulated PVC or rubber
jacket cable (insulation strength min. 30 V).
● Maximum total cable length: 30 m
Room temperature sensor:
● The cable of the room temperature sensor for heating circuit 1 must be 2 x min.
0.3 mm² and have a double insulated PVC or rubber jacket cable.
● Maximum total cable length: 30 m
Outdoor temperature sensor:
● The cable of the outdoor temperature sensor must be 2 x min. 0.3 mm² and have a
double insulated PVC or rubber jacket cable.
● Maximum total cable length: 30 m
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