Bosch xM10 Serie Manual Del Usuario página 15

▶ Ensure that a country-specific
emergency isolation switch
(emergency-off button) is present.
In the case of systems with three-
phase consumers, incorporate the
emergency isolation switch into the
safety chain.
▶ Ensure that a standards-compliant
disconnection device in accordance
with EN 60335-1 is available for all-
pole disconnection from the power
grid. If there is no circuit breaker
present, you must install one.
▶ Before opening the controller,
disconnect all poles of the heating
system via the circuit breaker. Secure
against unintentional reconnection.
▶ Size cables according to how they are
to be laid and environmental
conditions. The cable cross-section
for power outputs (e.g. pumps,
mixers) must be at least 1.0 mm
H Heating system damage due to
frost
When the heating system is not in
operation (e.g. controller switched off,
fault shutdown), there is a risk of it
freezing when there is frost.
▶ When shutting down or switching off
for extended periods, drain the
heating and drinking water pipes to
the lowest point in order to protect
the heating system from freezing.
xM10 – 6720866989 (2017/10)
Explanation of symbols and safety instructions
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
▶ Explain that conversions and repairs
must only be carried out by a
competent person.
▶ Point out the need for inspections and
maintenance for safe and
environmentally-compatible
operation.
▶ Leave the installation instructions and
the operating instructions with the
user for safekeeping.
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