Fuel Nozzle And Nozzle Holder (14); Fuel Line Connections (25); Electronic Ignition Unit (3); Ignition Electrodes (13) - Webasto DBW 2010 Service And Repair Manual

GENERAL DESCRIPTION
2.1.12 F N
UEL OZZLE AND
The fuel atomizing nozzle is screwed into the nozzle
holder. Under pressure, the fuel nozzle atomizes the fuel
entering the combustion chamber.
Nozzle Holder
Figure 12: Nozzle Holder and Nozzle
2.1.13 F L C
UEL INE ONNECTIONS
Fuel lines from the fuel tank are connected to the suction
and return pipes of the heater in the case of the DBW
2010/2020/300.
The Scholastic Series heater use a single fuel line that is
connected to the suction pipe of the heater. There is no
return fuel line on this model.
Dual Line System
(DBW 2010/2020/300)
Figure 13: Fuel Pumps
Webasto Product N.A., Inc.
N H (14)
OZZLE OLDER
Nozzle
(25)
Single Line System
(Scholastic Heater)
DBW 2010/2020/300 COOLANT HEATERS
2.1.14 E
LECTRONIC
The electronic ignition unit develops high voltage of
approximately 8000 volts to produce a spark at the tips
of the ignition electrodes. The electronic ignition unit is
only in operation during the starting phase.
IMPORTANT! Never switch on the electronic
ignition unit without being connected to the
ignition electrodes!
+ Black Wire
– Brown Wire
Figure 14: Electronic Ignition Unit
2.1.15 I E
GNITION LECTRODES
The ignition spark is formed between the points of the
ignition electrodes, thus starting the combustion process.
Electrodes
Figure 15: Ignition Electrodes and Setting Gauge
16
I U (3)
GNITION NIT
(13)
Setting Gauge
www.techwebasto.com