Webasto Air Top Evo 3900/5500 B, Руководство по установке, Страница: 21 / 36

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Air Top Evo 3900/5500 Combustion Air Inlet and Exhaust Lines
9. 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 (5/32 in.) must be made at its
lowest point.
The lines must not point to the front of the vehicle.
The lines must be located so that they cannot become
clogged with dirt and road debris.
Length of the combustion air inlet and exhaust lines in total:
With muffler:
max. 2.0 m
Without muffler: 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:
24 mm
exhaust line (metal): 24 mm
Minimum bending radius: 50 mm
Total bends:
Combustion air line:
max. 270°
Exhaust line: max. 270°.
IMPORTANT!
If the exhaust pipe ends other than as shown in Figure 25, it will pose a fire risk.
Figure 22. Prevent the formation of condensate
Figure 23. Lines must not point in the direction of travel
Figure 24. Avoid the lines becoming clogged with dirt
10°
10°
The exhaust pipe must be securely attached no further
than 150 mm (6 in.) from the end of the exhaust pipe
to ensure that the angle of 90° ± 10° is maintained.
Discharge direction almost vertical 90° ± 10°
Installation position
Figure 25. Exhaust pipe opening