DESCRIPTIONWEBASTO DBW SERIES HEATERS
6
1 Electronic control unit
2 Motor
3 Electronic ignition coil
4 Coupler
5 Combustion air fan
6 Fuel solenoid valve
7 Electrode holder
8 Coolant inlet
9 Ignition electrodes
10 Fuel nozzle
11 Overheat fuse (white wires)
12 Control thermostat
13 Temperature limiter
14 Coolant outlet
15 Heat exchangers
16 Combustion chamber
17 Combustion air swirler
18 Exhaust pipe
19 Flame detector
20 Fuel pump
21 Fuel supply/ return pipes
22 Combustion air adjusting shutter
Fig. 2: Major Components of the DBW 2020 / 300 Coolant Heaters
1 2 3 4 5 6 7 8 10 11 12 13 149
22 21 20 19 18 17 16 15
Coolant Heaters DBW 2020 / 300
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