Eberspächer HYDRONIC B 4 W SC Instruction Manual - page 19
19
Installation
3
Heater
Combustion air pipe
Exhaust pipe
End sleeve
Caution!
Safety instructions for the combustion air system
• The combustion air opening must be free at all
times.
• Position the combustion air intake to be sure that
exhaust fumes cannot be sucked in with the
combustion air.
• Do not arrange the combustion air intake to
pointing against the wind blast.
• The combustion air intake must not get clogged
with dirt and snow.
• Install the combustion air intake system sloping
slightly downwards. If necessary, make a drain
hole approx. Ø 5 mm at the lowest point to drain
off condensation.
Combustion air system
Mounting the combustion air system
The heater is mounted in the engine compartment, as
described in these instructions.
If the intake connection for combustion air is in a
position where the combustion air can be expected to
be no warmer than 25°C and whether neither splashed
water nor dust / dirt are expected, then no combustion
air hose is required.
Otherwise a flexible combustion hose must be
mounted with an inner Ø 20 mm and up to 1.5 m long,
to ensure that the intake of combustion air comes
from an area which complies with the above
conditions.
After completing all work, push an end sleeve over
the intake silencer / flexible pipe.
Comply with the regulations and safety instructions
for this chapter on page 4 – 7.
Please note!
min. 20 cm
max. 1.5 m
to max. 2 m