5
3. Safety notes
Installation, initial operation and maintenance of this appliance must only be
conducted by an authorised professional, who will then be responsible for adherence
to applicable standards and installation regulations. We assume no liability for any
damages caused by failure to observe these instructions.
• Do not use the appliance until it has been correctly installed and unless it is in perfect
working order.
• The appliance is only suitable for domestic use and similar applications inside closed, frost-
free rooms, and must only be used to heat incoming water from mains supply.
• The appliance must never be exposed to frost.
• The appliance must be earthed at all times.
• The minimal specific water resistance must not fall below the value stated on the label.
• The maximum water pressure must not exceed the value on the label.
• Before commissioning for the first time and each time the appliance is emptied (e.g. due to
work on the plumbing system, if there is a risk of freezing or in case of maintenance), the
appliance must be vented correctly in accordance with the instructions in this manual.
• Do not remove the front cover under any circumstances before switching off the mains
electrical supply to the unit.
• Never make technical modifications, either to the appliance itself or the electrical leads and
water pipes.
• Pay attention to the fact that water temperatures in excess of approx. 43°C are perceived as
hot, especially by children, and may cause a feeling of burning. Please note that the fittings
and taps may be very hot when the appliance has been in use for some time.
• Water inlet temperature must never exceed 70°C.
• In case of malfunction, disconnect the fuses immediately. In case of leaks, cut off the water
supply instantly. Repairs must only be carried out by the customer service department or an
authorised professional.
• This appliance can be used by children aged from 8 years and above and persons with
reduced physical, sensory or mental capabilities or lack of experience and knowledge if they
have been given supervision or instruction concerning use of the appliance in a safe way and
understand the hazards involved. Children shall not play with the appliance. Cleaning and
user maintenance shall not be made by children without supervision.
