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General safety instructions
Installation and commissioning
▶ Observe all national regulations and standards during installation and operation!
▶ All instructions must be observed. Failure to comply with instructions may result
in material damage and personal injury, including danger to life.
▶ Ensure that the user interface is only installed and commissioned by an approved
specialist.
▶ Install and commission the heat source and other accessories in accordance with
the relevant instructions.
▶ Never connect the user interface to the 230 V mains.
▶ Before installing the user interface: electrically isolate the heat source and all
other BUS nodes from the power supply and secure against unintentional
reconnection, making sure that the power supply is completely disconnected.
Damage caused by frost
The system can freeze, if it is not in operation:
▶ Leave the system switched on, if the outside temperature is below 0 °C.
▶ If the user interface is used as a controller, system frost protection is not
possible. System frost protection can only be reliably guaranteed, if weather-
compensated control is used.
▶ Correct any faults immediately.
CR 10 H – 6720876740 (2017/08)
General safety instructions
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