Webasto GBW 300 Installation instructions manual - page 54
GBW 300
Exhaust pipe
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Exhaust pipe
The opening of the exhaust pipe must not point towards the front of the
vehicle.
The exhaust pipe opening must be located so that it cannot become
clogged with snow and mud.
Rigid pipes of unalloyed or alloyed steel with a minimum wall thickness
of 1.0 mm or flexible piping of alloyed steel only must be used as
exhaust line. The exhaust pipe is secured to the heater using a clamping
collar, for example. See the statutory regulations for other requirements.
Maximum dimensions of the exhaust pipe:
– Internal diameter: 70 mm
– Maximum line length: 3 m
– Maximum bend: 270°
An exhaust extension is only possible if the combustion air intake line
has not been extended.
The exhaust outlet opening must be designed in such a way that a
sphere with a diameter of 16 mm cannot fit into it. The clear cross-
section must be maintained.
IMPORTANT
No tanks, lines, filters or filler necks with inflammable or highly ignitable
media may be installed near to the exhaust pipe. No absorbent and
inflammable materials may be positioned near the exhaust pipe.