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INSTALLATION
Before connecting the boiler, perform the following operations:
•
Thoroughly clean all the system pipes in order to remove any foreign matter that could affect correct operation of the boiler;
•
Check that the flue has an adequate draught, that there is no narrowing of passages and that it is free from debris; also
check that other appliances do not discharge into the flue (unless designed to serve several utilities). See the regulations
in force.
THERMAL PLANT
BOILER ROOM
As a rule, regulations in force should be always observed. Premises in which boilers will be installed should be sufficiently
ventilated and guarantee access for ordinary and extraordinary maintenance operations.
FLUE
The pressurised boiler that now equips your heating system is so-called because it uses a burner provided with fan which
introduces into the combustion chamber the exact amount of air necessary in relation to the fuel and maintains an over-
pressure in the furnace equivalent to all the internal resistances of the flue gas path as far as the boiler exhaust. At this
point the fan pressure should have dropped to zero to prevent the flue connection pipe and the lower area of the flue itself
from being under pressure and combustion gas leaks occurring in the boiler room.
The connection pipe from the boiler to the base of the flue must slope upwards in the direction of the flue gas flow with
recommended gradient of no less than 10%. Its path must be as short and straight as possible with the bends and fittings
rationally designed in accordance with air duct criteria.
The paragraph Technical Specifications specifies the flue connection diameters of the boilers for lengths of
up to 1 metre. For more winding paths, the diameter must be suitably enlarged.
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INSTALLATION
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