Metal-Fach GHT, Эксплуатационная и техническая документация, Страница: 15 / 32

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3. construction and technical data of the boiler
Boilers of GHT series are welded steel sheet structures. Fuel combustion takes place in
the combustion chamber . Above the chamber there are ceramic catalysts (picture 14), whose
task is to afterburning the gases and other volatile compounds that escape during combustion,
reducing their emission outside (they help in more accurate afterburning of fuel).
The fuel needed for
combustion is supplied from a tank
located in the boiler casing using a
feeder. The amount of fuel fed and
the feeding frequency are
regulated by the controller settings
(fig. 4).
The air needed for combustion in
the combustion chamber is
supplied through a blower which is
mounted to the combustion
chamber. The amount of air is
regulated by the controller settings.
The boiler is equipped with an
extinguishing system (firefighter)
powered from the home water
system. It is used for emergency
extinguishing of the firebox. Under
the combustion chamber there is
an ashtray. Periodic cleaning of
the boiler exhaust system takes
place through the inspection
openings placed on the chimney
outlet (Drawing 4 element no. 7, picture 8) of the boiler, through the cleanings marked on
Drawing 4 element no. 6.
In the front part of the top panel there is an electronic controller, while in the rear part there is a
control unit enclosed in a housing in which fuses are mounted (picture 5). In order to reduce
heat loss, the exchanger is protected by mineral insulation. The external casing of the boiler is
made of powder-coated steel sheet.
Drawing 2. location and method of boiler connection in the
domestic c. o. installation.
A
- the compensatory tank,
B
- ball check valve,
C - the C.O. pump.
D
- heater,
E
- four-way valve,
F
- check valve,
G - C.W.U. heater.
H - kettledrum
Methods of connecting the boiler in a central heating installation are available on the website of
METAL-FACH Technika Grzewcza. The selection of the installation method depends on the heat
Fig. 1.
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