Hitecsa ADISA ADI CD 105, Technical Manual Of Installation, Use And Maintenance

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ADI CD Boiler – Technical Manual
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7. BOILER HEAT EXCHANGER
The boiler heat exchanger (flues-water) is made of stainless steel: it 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, 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 air ventss are installed in the higher part of the boiler for
the air venting of the boiler.
Front and rear view: models ADI CD 175 and lower Front and rear view: models ADI CD 200 and higher
Without rear plate, casing non insulated.