Technical data

2 General Description BBW 46 / DBW 46
202
2.1 Combustion Air Fan with Intake
Muffler
The combustion air fan delivers the air required for
combustion through the intake muffler to the burner head.
For combustion air control an adjustment screw is
provided on the combustion air fan housing.
Combustion Air Fan 12 and 24 V
2.2 Heat Exchan
g
er
The heat exchanger transfers the heat generated by
combustion to the coolant circuit.
Heat Exchanger
2.3 Burner Head with Combustion Pipe
Within the burner head and combustion pipe the fuel is
conditioned, ignited and burned. This process heats the
coolant via the heat exchanger.
Burner Head with Combustion Pipe
2.4 Circulation Pump
The circulation pump ensures circulation of the coolant
within the vehicle and heater coolant circuit. The pump is
activated by the control unit and is in continuous operation
(also during control idle) together with the heater. The
pump may be mounted externally (special type) in the
vehicle.
Circulation Pump