Hoval AgroLyt 20, Operating Instructions Manual

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Function
What happens inside the
AgroLyt
®
?
The Hoval AgroLyt
®
is a state-of-the-
art, environmentally friendly wood
burning boiler that operates with 3-
stage combustion technology. The fuel
is introduced into the loading chamber
through the fuel loading door.
The AgroLyt
®
“bottom combustion
system” operates on the basis of three
combustion stages:
1. Primary air is supplied to the loading
chamber, drying the wood and caus-
ing its gasification.
2. The combustible gases flow through
the layer of embers into the combust-
ion chamber cone.
3. The hot gases are mixed with the
secondary air in the adjacent re-
fractory-lined vortex combustion
chamber, where they are completely
combusted.
The hot flue gases are subsequently
passed through and toward the back of
the vortex combustion chamber and, from
there, in upward direction through the
downstream heating surface, where they
transfer the heat to the heating water. From
there the flue gases pass through the flue
gas collector and are finally exhausted into
the flue by means of an extractor fan.
Figure 2
4
Extraction of smouldering gases:
The AgroLyt
®
is equipped with a smouldering
gas extractor which prevents any smouldering
gases from escaping while the fuel loading door
is open. The extractor operates while the fuel
loading door is open.
Figure 3
2
1
3
6
4
5
10
9 8
7 11
14
13
16
15
12
1 Fuel loading door
2 Combustion chamber and ash remov-
al door
3 Lighting and stoking door
4 Smouldering gas extraction
5 Primary air regulation
6 Secondary air regulation
7 Loading chamber
8 Grate and grate openings
9 Combustion chamber cone
10 Vortex combustion chamber
11 Ash chamber
12 Thermolytic downstream heating
surface
13 Fan
14 Cleaning aperture
15 Flue gas adapter pipe
16 Thermal safety valve
7
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