Webasto Air Top 3500 ST Installation Instructions Manual page 23

Air Top 3500 ST / Air Top 5000 ST
An attachment is required no further than 150 mm from the end of the
exhaust pipe to ensure that the angle of 90° ± 10° is achieved
Discharge direction almost vertical 90° ± 10°
Fig. 23: Exhaust pipe opening
Installation position
Only for ADR: The statutory regulation of ADR (Accord européen relatif
au transport international des marchandises dangereuses par route)
governing the routing of the exhaust line, part 9 para. 9.2.4.7, must be
adhered to.
Combustion air inlet and exhaust lines
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