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DEX & DBX Installation, Maintenance and User Instructions - April 2011
Warnings
• Installation, commissioning and maintenance of this appliance must only
be carried out by a competent installer who will then be responsible for
adhering to all relevant standards and regulations.
• The appliance must only be used when correctly installed and in perfect
working order!
• The appliance must be installed in a frost-free room! The appliance must
never be exposed to frost.
• The appliance must be earthed at all times!
• The appliance must only be used for heating potable water. The specific
water resistance must not fall below the required value indicated on the
rating plate.The appliance must not be used for any other purpose.
• The maximum water pressure must not exceed the value indicated on the
rating plate.
• 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 by
opening and closing the hot water tap until all air has been eliminated
from the water heater and no more air emerges before re-connecting to
the electrical supply.
• The front cover of the appliance must never be opened before disconnecting
the appliance from the mains power supply!
• The appliance and its wiring and piping must not be modified in any way!
• Be careful! Temperatures in excess of approx. 43°C are perceived as hot,
especially by children, and may cause a feeling of burning. When the
appliance has been in use for some time, the fittings may be very hot!
• Incoming water temperature must not exceed 70°C for DEX and must not
exceed 30°C for DBX.
• In case of malfunction isolate the power supply immediately. In case of
leaks also isolate the water supply. Repairs must only be carried out by
Zip Heaters (UK) Ltd or an authorized Zip service engineer.
• This appliance must not be used by any person (including children) with
limited physical, sensory or mental abilities or lacking suitable experience
and/or knowledge unless they are supervised by a person responsible for
their safety or have received instructions about how to use the appliance.
Children should be supervised in order to make sure that they do not play
with the appliance.
• Zip Heaters (UK) Ltd cannot be held liable for any damages caused by
failure to observe these instructions.
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