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GENERAL INFORMATION
Any product repairs must be performed solely by personnel
authorised by Unical, using original spare parts only. Failure to
comply with the above can compromise the safety of the appli-
ance and void the warranty.
To guarantee appliance eciency and its correct operation,
yearly maintenance must be performed by qualied personnel.
Should you decide not to use the appliance, parts entailing
potential sources of hazard must be made safe.
Before commissioning an appliance that has not been used,
wash the domestic hot water production system, making the
water ow until it has been fully replaced.
Should the appliance be sold or transferred to a new owner or
if you move and leave the appliance, always make sure that the
instruction manual accompanies it so that the new owner and/
or installer can refer to it.
Only original accessories must be used for all appliances with
optional features or kits (including electric ones).
This appliance is intended solely for the use for which it was
expressly designed.
Any other use is to be considered improper and therefore dan-
gerous (*)
(see 1.7 Water Treatment).
1.1 - GENERAL WARNINGS
The instruction manual is an integral and essential part of the
product and must be kept by the user.
Read the warnings contained in this instruction manual carefully
as they provide important guidelines regarding installation, use
and maintenance safety.
Keep the manual with care for further consultation.
Your appliance must be installed and serviced in compliance with
the standards in force according to the manufacturer instructions,
up to standard and by legally qualied and certied personnel.
Systems for the production of domestic hot water MUST be
constructed entirely with compliant materials.
By professionally qualied personnel we mean: personnel with
specic technical skill in the eld of heating system components
for civil use, domestic hot water production and maintenance.
Personnel must have the qualications provided for by current
legislation.
Incorrect installation or improper maintenance can cause dam-
age to persons, animals or objects for which the manufacturer
is not responsible.
Before performing any cleaning or maintenance, disconnect the
appliance from the energy mains by acting on the switch of the
system and/or through the specic cut-o devices.
Do not obstruct the terminals of the intake/exhaust ducts.
In the event of failure and/or malfunctioning of the appliance,
switch it o and do not try to repair it or intervene on it directly.
Contact only personnel qualied in compliance with law.
ATTENTION
THE THERMAL UNIT MUST BE INSTALLED IN SUCH A WAY AS TO AVOID, IN
THE ENVISAGED OPERATING CONDITIONS, THE LIQUID IT CONTAINS
FROM FREEZING AND PREVENT COMMAND AND CONTROL PARTS
FROM BEING EXPOSED TO TEMPERATURES BELOW -15°C AND ABOVE
+40°C.
THE THERMAL UNIT MUST BE PROTECTED FROM CLIMATIC/ENVIRONMEN-
TAL VARIATIONS WITH:
- The insulation of hydraulic pipes and condensation drain
- The use of specic antifreeze products in the hydraulic system.
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