7 Electrical installation
122 Installation and maintenance instructions aroTHERM plus 0020297937_01
Validity: Floor installation
▶ Use the pre-installation jig and the enclosed compon-
ents from the accessories.
▶ Check all connections for tightness.
Validity: Wall-mounting
▶ Use the pre-installation jig and the enclosed compon-
ents from the accessories.
▶ Check all connections for tightness.
6.7 Completing the hydraulics installation
1. Depending on the installation configuration, install addi-
tional required safety-relevant components.
2. When the product is not installed at the highest point in
the heating circuit, install additional purging valves in
elevated places where air may collect.
3. Check all connections for tightness.
6.8 Option: Connecting the product to a
swimming pool
1. Do not connect the product's heating circuit directly to a
swimming pool.
2. Use a separation heat exchanger that is suitable and
the additional components that are required for this
installation.
7 Electrical installation
This unit complies with IEC 61000-3-12 under the prerequis-
ite that the short circuit line Ssc at the connection point for
the customer's installation to the public grid is greater than or
equal to 33. It is the responsibility of the installer or end user
of the unit to ensure, if necessary after consultation with the
network operator, that this unit is only connected to one con-
nection point with an Ssc value that is greater than or equal
to 33.
7.1 Preparing the electrical installation
Danger!
Risk of death from electric shock as a res-
ult of an improper electrical connection!
An improper electrical connection may neg-
atively affect the operational safety of the
product and result in material damage or per-
sonal injury.
▶ Only carry out the electrical installation if
you are a trained competent person and
are qualified for this work.
1. Observe the technical connection conditions for con-
necting to the energy supply company's low-voltage
network.
2. Determine whether the energy supply company lockout
function has been provided for the product, and how
the power supply for the product should be designed,
depending on the type of shutdown.
3. Use the data plate to determine whether the product
requires a 1~/230V or a 3~/400V electrical connection.
4. Use the data plate to determine the product's rated cur-
rent. Derive the suitable cable cross-sections for the
electrical wires from this.
5. Prepare the routing of the electrical wires from the
building and through the wall duct to the product. If the
line length exceeds 10 m, prepare the separated routing
of the power supply cable and sensor/bus line.
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