Combustion Air Inlet And Exhaust Lines - Webasto Air Top 2000 ST B Installation Instructions Manual

Air Top 2000 ST
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Combustion air inlet and exhaust lines

Both lines are to be installed falling away from the heater. If this is not
possible, a condensate drain hole with a diameter of 4 mm must be
made at its lowest point.
Fig. 19: Prevent the formation of condensate
The lines must not point to the front of the vehicle.
Fig. 20: The lines must not end pointing towards the front of the vehicle
The lines must be located so that they cannot become clogged with dirt.
Combustion air inlet and exhaust lines
Fig. 21: Avoid the lines becoming clogged with dirt
IMPORTANT
If the exhaust pipe ends is other than as shown in the Figure 22 it will
pose a fire risk.
Length of the combustion air inlet and exhaust lines in total:
with silencer: max. 2.0 m
without silencer: max. 5.0 m
NOTE:
If the exhaust line is over 2 m in length the lines must be insulated (to
prevent falling below the dewpoint)
Internal diameter of the lines:
Combustion air line: 22 mm
Exhaust line (metal): 22 mm
Minimum bending radius: 50 mm
Total bends:
Combustion air line:max. 270°
Exhaust line: max. 270°.
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