ADI LT boiler – Technical manual
Page
10
7. BOILER HEAT EXCHANGER
The boiler heat exchanger (flues-water) is made of
stainless steel: is a stainless steel enriched with a special
alloy (for a better resistance to corrosion and to high
temperatures).
The boiler heat exchanger consists of 2 water collectors,
an upper one and a lower one, connected by means of
multiple vertical tubes forming the combustion chamber.
The vertical tubes generate a big heat transfer surface that
uses the sensible heat of the flues.
During the manufacturing process, the boiler is subjected
to a strict quality control, realized through a process of
three leak tests: one with penetrant liquids, another one
with air pressure and the last one with water pressure.
The boiler heat exchanger is insulated.
Several manual purgers are installed in the higher part of
the boiler for the air venting of the boiler.
Back view: models ADI LT 200 and lower ADI LT 250 and higher
