1 Safety
6
Operating instructions aroTHERM 0020172515_05
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To the product itself
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To the supply lines
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On the drain pipework
–
On the expansion relief
valve for the heat source
circuit
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to constructional condi-
tions that may affect the
operational reliability of the
product
1.3.10 Risk of injury and
material damage due
to maintenance and
repairs carried out
incorrectly or not
carried out at all
▶
Never attempt to carry out
maintenance work or repairs
on your product yourself.
▶
Faults and damage should
be immediately rectified by a
competent person.
▶
Adhere to the maintenance
intervals specified.
1.3.11 Frost damage due to an
unsuitable installation
site
Frost poses a risk of damage
to the product and the whole
heating installation.
▶
You should therefore ensure
that the heating installation
always remains in operation
during freezing conditions and
that all rooms are sufficiently
heated.
Even if rooms, or the whole
dwelling, are not in use for cer-
tain periods, the heating must
remain in operation.
Frost protection and monitoring
devices are only active while
the product is connected to
the power supply. The product
must be connected to the power
supply.
1.3.12 Frost damage caused
by insufficient room
temperature
If the room temperature is set
too low in individual rooms, it
cannot be ruled out that sec-
tions of the heating installation
might be damaged by frost.
▶
If you are going to be away
during a cold period, ensure
that the heating installation
remains in operation and that
the rooms are sufficiently
heated.
▶
You must observe the frost
protection instructions.
1.3.13 Frost damage caused
by a power cut
During installation, your com-
petent person connected your
product to the power mains.
If the power supply is cut, it is
possible that parts of the heat-
