Herz pelletstar CONDENSATION 10, Operating Instructions Manual

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Fuels 3
7
3 FUELS
The HERZ pellets boiler should be operated with
the fuels and their properties which are described
in this chapter.
3.1 Wood pellets
Wood pellets for non-industrial use according to
ENplus,
Swisspellet, DINplus resp. pellets
according to EN 17225-2 with following
specifications:
◼
Property class A1
◼
The maximum permissible fines content in
the fuel storage room must not exceed
8 % of the fuel volume (determined using
a perforated screen with holes 5 mm in
diameter)!-
◼
Fines content at loading: < 1.0 m-%
◼
Calorific value at as-delivered condition >
4,6 kWh/kg
◼
Bulk density (BD) at as-delivered
condition > 600 kg/m³
◼
Mechanical Strength (DU), at as-delivered
condition in m-
%: DU 97,5 ≥ 97,5
◼
Diameter 6 mm
Prevent the entering of debris such as stones
or metal particles into the system! Sand and
soil lead to higher level of ash and slagging
precipitation.
There may be a formation of slag according to the
fuel quality, which has to be removed by hand.
In the case of non-compliance, any warranty
or guarantee will be rendered null and void.
The burning of unsuitable fuels could lead to
uncontrolled combustion. Operational faults
and consequential damage are likely to occur.
If a different fuel is named explicitly on the order
respectively the order confirmation, the system
can be operated with the mentioned fuel.
Note: The system is set to the agreed fuel at the
commissioning. This setting (ID-fan speed, fuel,
flow and backflow, cycle times, etc.) should not be
changed when using constant fuel quality.