Datasheet

5822 239
G
B
6
2.1 Design in general
Location
General requirements
The boiler location should meet the
Combustion Regulation standards set by
the respective country.
In rooms where air contamination
through halogenated hydrocarbons may
occur, such as in hairdressing salons,
printing shops, chemical cleaners and
laboratories, boilers may only be installed
if adequate measures can be taken to
provide uncontaminated combustion air.
If in doubt, please contact us.
Boilers should not be installed in areas
subject to dusty or very humid
conditions.
The boiler location should be kept free
from frost and should be adequately
ventilated.
If these instructions are not observed, any
consequential losses directly related to
any of these causes are excluded from
our warranty.
Requirements of the sample Combustion
Regulation
Requirements laid down for boiler rooms
are listed in the ”Sample Combustion
Regulation”. The respective State
Building Regulations and Combustion
Regulations of the individual Federal
States apply, which are essentially based
on the following requirements of the
sample Combustion Regulation.
Combustion air supply
For open flue combustion equipment with
a total rated output higher than 50 kW,
the fresh air supply is deemed to have
been verified if the combustion
equipment is located in areas which
provide an aperture or pipe leading
outdoors. The cross-section of the
aperture should be at least 150 cm
2
and
should be 2 cm
2
larger for each additional
kW rated output above 50 kW. Pipes
should be sized to provide equivalent
flow rates. The required cross-section
may be split to a maximum of 2 apertures
or pipes.
A = 150 cm
2
+2
cm
2
kW
x(ΣQ
N
-50kW)
ΣQ
N
= Total of all rated outputs in kW
Combustion air openings and pipes
should not be closed or blocked if the
safety equipment installed cannot
adequately ensure that the combustion
equipment can only be operated when
the aperture is free. The required
cross-section should not be reduced by a
closure or grille.
An adequate combustion air supply can
also be verified by other means.
Locations for combustion equipment
Combustion equipment for liquid or
gaseous fuels with a rated output higher
than 50 kW should only be installed in
areas
H which are not used for other purposes,
except the installation of heat pumps,
CHP stations or permanently installed
combustion engines as well as the
storage of fuels
H which do not have openings leading to
other rooms - except door openings,
H whose doors are tight and self-closing,
and
H which can be ventilated.
The burner and control unit of
Vitogas 100 should be able to be switched
off at any time by an emergency stop
switch installed outside the installation
room. Next to the emergency stop switch,
a sign should be positioned with the
inscription ”EMERGENCY STOP SWITCH
– COMBUSTION”.
As an alternative to these regulations for
installation areas, combustion equipment
may also be installed in other areas, if
H the utilisation of these rooms makes
this necessary and the combustion
equipment can be safely operated, or
H if these rooms are located in a
stand-alone building, whose only
function is the operation of the
combustion equipment and as fuel
storage area.
Further requirements regarding the
installation of combustion equipment
Fuel lines should be equipped with a
device upstream of the gas-fired
combustion equipment installed in the
boiler room, which
H is able to automatically shut-off the fuel
supply in case of an external thermal
load in excess of 100 ºC being exerted,
and
H should be designed so that not more
than 30 l/h – measured as air flow rate –
can flow through or out of the fuel line,
at a temperature of up to 650 ºCand
over a period of at least 30 minutes.
Combustion equipment should be
installed far enough away from
combustible materials and in-built
furniture or be shielded from such
material/furniture, that at the rated output
of the combustion equipment, no
temperatures higher than 85 ºC can occur.
Otherwise, maintain a distance of at least
40 cm.
A
.
.