Requirements Of The Muster-Feuerungsverordnung [M-Feuvo Sample Combustion Ordinance - Germany]; Combustion Air Supply - Viessmann VITOFLEX 300-UF Technical Manual

Design information
9
250
d
Hatched area Floor of a heat-resistant design
Grey central area Boiler supporting surface
Foundation properties
Trade name
Rated heating output
a
b
c
d
e

Requirements of the Muster-Feuerungsverordnung [M-FeuVo Sample Combustion Ordinance - Germany]

Observe the specific building regulations and fire regulations in your
country. The installation room must meet the standards laid down by
the "Muster-Feuerungsverordnung".
Combustion appliances for solid fuels with a total rated heating out-
put of more than 50 kW and which are to be operated simultane-
ously, may only be installed in special rooms (boiler rooms).
Recommendation
Consult your local flue gas inspector.

Combustion air supply

For open flue combustion equipment with a total rated heating output
in excess of 35 kW, the combustion air supply is deemed to have
been verified if the combustion equipment is located in areas which
provide an aperture or duct leading outdoors.
At 35 kW rated heating output, the cross-section of the aperture
must be at least 150 cm
excess of 35 kW, the aperture must be 2 cm
above.
Pipes must be sized to provide equivalent flow rates. The required
cross-section may be split over up to 2 apertures or pipes.
Viesmann
86
(cont.)
250
e < 400
c
kW
mm
mm
mm
mm
mm
2 . For every kilowatt rated heating output in
2 larger than stated
Vitoflex 300-UF
390 530
1026 1026
1826 1826
4221 4721
1260 1260
2561 3061
Emergency stop switch
On combustion equipment for solid fuels with a rated heating output
above 50 kW, it must be possible to switch off the burner, fuel supply
equipment and burner control units at any time by means of an
emergency stop switch located outside the installation room. Provide
a sign adjacent to the emergency stop switch that reads "EMER-
GENCY STOP SWITCH – COMBUSTION EQUIPMENT".
A
cm²
A = 150 cm² + 2 x (Σ n – 35 kW)
²
kW
Σ² = sum of all rated heating outputs in kW
n
720 950
1112 1360
1912 2160
4912 5096
1400 1630
3112 3066
VITOFLEX 300-UF
1250
1360
2160
5641
1630
3611