Combustion air supply
96
NOTE
The intake opening for combustion air must be located so that it cannot
become clogged with dirt or snow. See Fig. 34.
NOTE
The intake opening for combustion air must not point in the driving direc-
tion. See Fig. 35.
Combustion air intake hose should point downwards from the heater. If
this is not possible, make a condensate drain hole with a diameter of 4 mm
at its lowest point. See Fig. 36.
Fig. 34: Avoid the line becoming clogged with dirt
Fig. 35: The line must not end pointing towards the front of the
vehicle
Fig. 36: Prevent the formation of condensate
