Description Of Boiler Structure; Parts Of Boiler; Air Injection Collector (Figure 2) - Stropuva S7 Technical Passport Installation And Maintenance Instructions

Boiler is cylinder made of steel, enveloped in a cylinder of steel of bigger diameter and this
whole construction is thermally insulated. Heated water resides between these two cylinders.
At the front part of boiler there is draft regulator (2) (more information in 7.3). Construction has
openings for loading of fuel (8) and removal of ashes (11) as well as fl ue for smoke removal
(5). Also there are openings for water supply pipe (14 – 15), thermometer (16) and pressure
safety valve (17). At the top part of combustion there is air pre-heating chamber (4) chamber for
enhancement of burn quality and heat transfer. Telescopic air supply pipe (7) for attaching air
distributor and combustion chamber stabilizer, fi ts into this chamber (9).
"U" boiler is designed for peat briquettes or coal; it has switching valve (6) and is supplied
with fi re grate (19) and air injection collector (21).
"BIO" boiler is designed for fi rewood, pellets, and sawdust briquettes or wood chips. It is
supplied with fi re grate (19) and air injection collector (21).
At the upper part of chamber there is opening for air and air valve (1). On the right side of
the boiler, in front of the door, there is a cord and ring (12) for lifting of air supply mechanism
and fi xation hook (13).
Purpose of air distributor with stabilizer of combustion chamber (9) is to distribute air
correctly into generation zones, which are under and besides the air distributor, also in
burning zones. Air distributor with combustion chamber stabilizer (9) rests on fi rewood
which is on the sides and is not reaching high temperatures.
Distributor with stabilizer of combustion chamber (9) shouldn't be moved during the burning:
if air distributor is lifted and lowered again, it rotates and falls deep into point of burning, than
boiler operates ineffi ciently and the lifespan of its parts is shortened.
With pellets, briquettes, damp fi rewood or other wood fuel and its residues we recommend
to use air injection collector. Air injection collector is mandatory when burning coal and peat. "U"
and "BIO" models come with air injection collector.
Air injection collector is plugged into electrical network after igniting the boiler and closing
the door.
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TECHNICAL PASSPORT INSTALLATION AND MAINTENANCE INSTRUCTIONS

2.1 DESCRIPTION OF BOILER STRUCTURE

3 PARTS OF BOILER

3.1 AIR INJECTION COLLECTOR (Figure 2)

Figure 2