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HEATING BOILERS: Astra G-120E
• CERAMIC ELEMENTS OF THE BOILER
The boiler has ceramic elements of those types: ceramic burner 1, ceramic segments 2, 3, 4 and 5 (Fig. 2). All the segments
of the basket must be pushed to the rear wall of the boiler chamber until they halt. There is a 6 mm thick gasket made from
temperature-proof ceramic fiber paper intended to separate the boiler wall from the
ceramic basket. If needed, the ceramic burner 1 can be removed. For this purpose, use
a screwdriver to remove the sealing rope from between the ceramic burner and the
frame of the boiler, then this ceramic insert can be removed.
• TURBULENCE PLATES
Turbulence plates – a technology invented and patented by “Astra” engineers, used
for capturing more heat from the hot exhaust smoke. It forces the exhaust smoke to
hold, become turbulent and thus transfer more heat to the adjacent heat exchanger.
The core of the device consists of the turbulence plates, positioned at an angle in the
rectangular-shaped flue channel of the boiler. The inspection aperture 1 is installed on
the top part of the flue channel (Fig. 3), covered with a screw-on cover with a gasket.
This aperture is used for cleaning the flue channel and placing/removing the turbulence
plates.
When removing the turbulence plates, always lift them the triangle
part upside.
The turbulence plates 2, shown in Fig. 3, maintain their position in the flue due to their
force of gravity alone. They are inserted into the flue channel or removed using a poker
3, which is provided with the boiler. Poker 3 (Fig. 3) is bent at an angle of approximately
80° to the handle, so that the hooked plate does not slide off. In order to be able to hook
the turbulence plate 2 with a poker, a hole has been made in its upper part for hooking
with a poker. Each plate rests upon lower plate or heat exchanger 4 supports. When
inserting the plate 2 with a poker 3 into the flue channel, first the lower position is
found, and after slightly loosening the poker, yet without removing it from the hole, the
plate is allowed to descent onto the opposite side of the heat exchanger due to the force
of gravity until it touches the wall of the heat exchanger with its upper supports. Then
the tool can be removed and the next plate can be installed in a similar way. The second
lowest plate is inserted only after the inspection aperture 5 (Fig. 3) has been opened.
Fig.2 Ceramic inserts and their positions
1. Ceramic burner; 2, 3, 4, 5 Ceramic segments.
Ceramic
element
Boiler type
G-120E
1. Burner
1
G-18.00.003-01
2
2, 3, 4, 5. Segments of the ceramic basket
2
G100E02
3
3
G100E01
3
4
G100E04
1
5
G100E03
1
1
1
2
2
2
3
3
3
4
5
Fig. 3 Turbulence plate technology
1. Inspection aperture; 2. Turbulence plates; 3.
Poker; 4. Heat exchanger of the boiler flue; 5.
Revision lateral hole. 6. Bottom aperture.
33
2
1
2
4
5
6
