Unical ALKON 100, Руководство по установке и обслуживанию

Страница: 56 / 76

20
NOTE!
Further details in the section
‘‘Technical Information’’ on the boiler page
of the www.unicalag.it website
To fill the system is necessary to provide a loa -
ding tap on the heating circuit, or use the optional
accessories.
The boiler is equipped with its own drain valve, the
position of which is indicated in the figure to par
2.2. This tap can never be used for emptying the
system, since all the dirt present in the circuit could
be accumulate in the boiler, compromising the
proper functioning. Therefore, when using the drain
valve, make sure that drain valve (29) it is closed
The system must be equipped with its own drain
valve, with a size suitable to the capacity of the
system.
Pressure in the mains supply must be between 0.5
and 6 bar (In case of higher pressure a pressure
reducer it must be installed)
Attention!
Do not mix the heating water with incorrect
concentrations of antifreeze or anti-corrosion
substances! This could damage the gaskets
and cause noise during operation.
Unical will not be held liable for damage to
persons, animals or objects due to failure to
comply with the above instruction.
3.8 - FILLING THE sYsTEM