©
HDG Bavaria GmbH 07/2008
HDG Compact 99 - 200 - Version 1 - en
3 Mode of operation – Functional description
21
3.2 Functional description
The HDG Compact 99 - 200 heating system may contain the fol-
lowing components:
1 Delivery system
2 Control cabinet
3 Feeding system
4 HDG Compact 99 - 200 boiler
5 HDG cyclone dust extractor
6 Accumulator
C
OMBUSTION
PROCESS
With the HDG Compact 99 - 200 heating system, the fuel is automati-
cally fed from the bunker into the combustion chamber of the boiler
via the delivery and feeding systems. The combustion fan is already
activated here in order to eliminate any possible residual combustion
gases or negative flue pressure conditions along the combustion
path.
Once the filling cycle is complete, the fuel introduced into the com-
bustion chamber is automatically ignited with an electrical ignition
fan. During the subsequent heating-up phase, the specified fuel feed
quantity is set.
Figure 3/5 - Overview
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5
3
2
1
4
