0020308119_02 Operating instructions 5
– to the gas, supply air, water
and electricity supply lines
– to the entire flue system
– to the entire condensate dis-
charge system
– to the expansion relief valve
– to the drain pipework
– to constructional conditions
that may affect the operational
reliability of the product
▶ Ensure that there is an evenly
sufficient combustion air sup-
ply.
1.3.5 Material damage
▶ Ensure that the combustion
air supply is always free of
fluorine, chlorine, sulphur,
dust, etc.
▶ Ensure that no chemical sub-
stances are stored at the in-
stallation site.
▶ During a period of frost, en-
sure that the heating install-
ation remains in operation
and that all rooms are heated,
even when you are away.
– If a control is installed,
switch the product on and
off using the control to keep
the frost protection devices
active.
▶ If you cannot ensure the oper-
ation, have a competent per-
son drain the heating installa-
tion.
▶ Only fill the heating installa-
tion with suitable heating wa-
ter and, in cases of doubt, ask
a competent person about
this.
1.3.6 Legionella
▶ Have a competent person in-
form you about the measures
that should be taken to pro-
tect against Legionella in your
installation.
▶ Do not set any water temper-
atures below 60 °C without
consulting the competent per-
son first.
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