35
Technical features and dimensions
ENGLISH
3.15 - cOMMissiOning
preliminary checks
commissioning must be done by
professionally qualified personnel.
Unical will not be held liable for damage to
persons, animals or objects due to failure to
comply with the instruction above.
Before commissioning the boiler, check that:
- installation complies with standards for the gas and electrical
power;
- the adduction of combustion air and flue gas evacuation are
performed correctly according to that laid down by standards
in force;
- the fuel feed system is dimensioned according to the flow
rate required for the boiler and is provided with all safety and
control systems prescribed by current standards;
- the power supply of the boiler is 230V - 50Hz;
- the system is filled with water (approximately 1 bar pressure
on the pressure gauge with the pump stopped);
- any system shut-off gate valves are open;
- the gas used corresponds to boiler calibration: if not, modify
the boiler to use type of gas available; this operation must
be carried out by qualified technical personnel according to
standards in force;
- the gas feed valves are open;
- there is no gas leakage;
- the external main switch is connected;
- the system safety valves are not blocked and are connected
to the sewer system drainage;
- there is no water leakage;
- ventilation conditions and minimum distances are guaranteed to
perform maintenance should the boiler be enclosed between
furniture or in a niche.
switching boiler on and off
To switch the boiler on and off, see the
“sYsTeM Manager
OperaTing insTrUcTiOns”.
information for system manager
The system manager must be instructed concerning the use and
operation of his heating system, in particular:
•
Give the system manager the “SYSTEM MANAGER
OPERATING INSTRUCTIONS”, as well as the other
appliance documents inserted in the envelope inside the
packaging.
The system manager must keep this
documentation for future consultation.
• Inform the system manager about the importance of the air
vents and the flue gas exhaust system, highlighting their
essential features and the absolute prohibition of modifying
them.
• Inform the system manager concerning control of the
system’s water pressure as well as operations to restore it.
• Inform the system manager concerning correct control of
temperatures, control units/thermostats and radiators to save
energy.
• Remember that the system must receive regular maintenance
at least once a year and a combustion analysis must be
performed in the timetable foreseen by standards in force.
• 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
consulted by the new owner and/or installer.
Xc-K boilers are forced circulation boilers: it is therefore
necessary to make sure that water circulates while the
boiler is running.
Do not allow the burner to run without the system pump being
activated; otherwise the safety thermostat could be triggered.
Room temperature will be regulated by the mixture valve
commanded by the heating controller.
when the burner switches on and off, slight sounds could
be heard due to settling of the structure. do not worry about
this as expansions are foreseen during design.
