3
ENGLISH
1 - SYMBOLS USED IN THE MANUAL
NOTE!
Tips
for the user
ATTENTION!
Possible dangerous
situation for the product and the environment
DANGER!
Serious danger for
personal safety and life
2 - APPROPRIATE USE OF APPLIANCE
The boiler has been built according to the current level of engineering and acknowledged
technical safety rules.
Nonetheless, if improperly used, dangers could arise for the safety and life of the user and
other persons or damage to the equipment or other objects.
The appliance is designed to work in heating systems, with hot water circulation, for the pro-
duction of domestic hot water.
Any other use is considered improper.
UNICAL AG S.p.A. will not be held liable for any damage resulting from improper use.
Use according to the intended purposes also includes strict compliance with the instructions
in this manual.
The user must be instructed concerning the use and operation of the heating system, in particular:
• Deliver these instructions to the user, as well as other documents concerning the appliance
inserted in the envelope inside the packaging. The user must keep this documentation safe
for future consultation.
• Inform the user about the importance of the air vents and the flue gas exhaust system, high
-
lighting their essential features and the absolute prohibition of modifying them.
• Inform the user concerning controlling the system's water pressure as well as operations to
restore it.
• Inform the user concerning correct temperature control, control units/thermostats and radiators
for saving energy.
• Remember that the system must receive regular maintenance at least once a year and com
-
bustion analysis must be performed every two years (as per national law).
• 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 booklet accompanies it in order to be con-
sulted by the new owner and/or installer.
The manufacturer will not be held liable in the event of damage to persons, animals or objects
resulting from failure to comply with the instructions contained in this manual.
4 - INFORMATION PROvIDED TO THE USER
BY THE INSTALLATION/MAINTENANCE TECHNICIAN
3 - WATER TREATMENT
• The hardness of the feed water conditions the frequency at which the domestic hot water
exchanger must be cleaned.
• If the water has a hardness greater than 15°f, we recommend using water softeners, chosen
according to the characteristics of the water.
• In order to improve scaling resistance, it is recommended to adjust the domestic hot water at
a temperature very close to that actually used.
• It is recommended to verify the cleanliness of the domestic hot water exchanger at the end
of the first year, and then according to the level of scaling found; the period can be extended
to two years.
Pay special attention when reading this manual to the parts marked by the symbols:
Provisions for proper disposal of the product in accordance with Directive 2002/96/EC
At the end of its life cycle the product must not be disposed of as urban waste. It can be taken to
a special recycling centre managed by the local authorities, or to a dealer who offers this service.
Separate disposal of a domestic appliance avoids possible negative consequences for the environment
and human health deriving from inappropriate waste handling and allows the recovery of the materials
of which it is made, in order to obtain significant energy and resource savings.
