KOB PYROT - Combustion air supply

■ Avoid air contamination through halogenated hydrocarbons (e.g. as
in sprays, paints, solvents and cleaning agents)
■ Avoid very dusty conditions
■ Avoid high levels of humidity
■ Prevent frost damage and ensure good ventilation
In rooms where air contamination through halogenated hydrocar-
bons can occur, install the boilers and flue gas/water heat exchangers
only if adequate measures can be taken to provide a supply of uncon-
taminated combustion air.
If these instructions are not observed, any consequential losses
directly related to any of these causes are excluded from our war-
ranty.
If in doubt, please contact us.
250
250
b
250
250
c
e
f
250
g
a
d
x
y
x Supply side
y Floor in heat-resistant version
Surface medium grey Boiler supporting surface
Foundation properties
Trade name Pyrot rotation combustion
Rated output kW 100 150 220 300 400 540
Part no.: 7423 656 7423 657 7423 658 7423 659 7423 660 7423 661
Dimensions
a mm 1570 1570 2050 2050 2460 2460
b mm 870 870 1150 1150 1390 1390
c mm 620 620 680 680 800 800
d mm 2803 2850 3130 3613 3738 4103
e mm 423 520 520 723 448 543
f mm 640 740 740 880 960 1095
g mm 870 870 1150 1150 1390 1390
Requirements of the Muster-Feuerungsverordnung [Germany]
The installation room must meet the standards laid down by the "Mus-
ter Feuerungsverordnung" [Germany]. Observe the Building Regula-
tions and combustion equipment ordinances of the relevant country of
installation.
Combustion air supply
For open flue combustion equipment with a total rated 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 aper-
ture or duct leading outdoors.
At 35 kW rated output, the cross-section of the aperture must be at
least 150 cm
2
. For every kilowatt rated output in excess of 35 kW, the
aperture must be 2 cm
2
larger than stated above.
Pipes must be sized to provide equivalent flow rates. The required
cross-section may be split over a maximum of 2 apertures or pipes.
Design information
(cont.)
PYROT
43
5822 516 GB
6