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Explanation of symbols and safety instructions
H Electrical work
Electrical work must only be carried out
by a qualified electrician.
▶ Before starting electrical work:
– Isolate all poles of the mains power
supply and secure against
reconnection.
– Make sure the mains voltage is
disconnected.
▶ The product requires different
voltages.
Do not connect the (ELV) side to the
mains voltage or vice versa.
▶ Also observe the connection
diagrams of other system
components.
H Handover to the user
When handing over, instruct the user
how to operate the heating system and
inform the user about its operating
conditions.
▶ Explain how to operate the heating
system and draw the user's attention
to any safety relevant action.
▶ In particular, point out the following:
– Alterations and repairs must only
be carried out by an approved
contractor.
– Safe and environmentally
compatible operation requires
inspection at least once a year and
responsive cleaning and
maintenance.
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▶ Point out the possible consequences
(personal injury, including danger to
life or material damage) of non-
existent or improper inspection,
cleaning and maintenance.
▶ Point out the dangers of carbon
monoxide (CO) and recommend the
use of CO detectors.
▶ Leave the installation instructions and
the operating instructions with the
user for safekeeping.
H Damage caused by frost
The system can freeze if it is switched
off:
▶ Observe the notices regarding frost
protection.
▶ Due to the additional functions, e.g.
DHW heating or pump anti-seizure
protection, the system should always
be left on.
▶ Have faults rectified immediately.
MS 100 – 6721830547 (2020/12)
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