74
Installation and maintenance instructions 0020326637_00
▶
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.
Take into account that an expansion relief valve with a
triggering pressure of 2.5 bar is included in the product.
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
current. 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 rout-
ing of the power supply cable and sensor/bus line.
7.2
Requirements for the quality of the mains
voltage
For the mains voltage of the single-phase 230 V network, a
tolerance of +10% to -15% must be provided.
For the mains voltage of the three-phase 400 V network, a
tolerance of +10% to -15% must be provided. For the voltage
difference between the individual phases, a tolerance of +-
2% must be provided.
7.3
Requirements for electrical components
Flexible hose lines that are suitable for routing outdoors must
be used for the power supply. The specification must com-
ply with the standard 60245 IEC 57 with the abbreviation
H05RN-F as a minimum.
The electrical partitions must have a contact gap of at least
3 mm.
For the electrical fuse protection, slow-blow fuses with C
characteristics must be used. With a three-phase power sup-
ply, the fuses must be three-pole switching.
To protect people, type B universal-current-sensitive resid-
ual-current circuit breakers must be used if these are stipu-
lated for the installation site.
For the eBUS line, no lines with twisted wire pairs must be
used.
7.4
Electrical partition
The electrical partition is also referred to as a "disconnector"
in these instructions. The fuse or the circuit breaker that is
installed in the building's meter/fuse box is usually used as
the disconnector.
7.5
Installing components for the energy supply
company lockout function
With the energy supply company lockout function, the heat
generation from the heat pump can be switched off tempor-
arily by the energy supply company. The unit can be shut
down in two ways:
1.
The signal for the shutdown is fed to connection S21
for the indoor unit.
2.
The signal for the shutdown is fed to a partition that is
installed on-site in the meter/fuse box.
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If the energy supply company lockout function is
provided, install and wire additional components in the
building's meter/fuse box.
