Installation manual

Circuit Diagrams
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3. Circuit Diagrams
Circuit diagram legend for the DBW 2010
6. Temperature coding (temperature at water outlet):
Refer to following circuit diagram legend for further
information.
7. Vessel Fuse
8. Vessel Blower Switch
DBW 2010 Circuit Diagram Legend
Cable cross-sections
< 7.5 m 7.5 - 15 m
0.75 mm
2
1.0 mm
2
0.75 mm
2
1.0 mm
2
1.0 mm
2
1.5 mm
2
1.5 mm
2
2.5 mm
2
2.5 mm
2
4.0 mm
2
4.0 mm
2
6.0 mm
2
Cable Colors
bl
br
ge
gn
gr
or
rt
sw
vi
ws
Blue
Brown
Yellow
Green
Grey
Orange
Red
Black
Violet
White
Item Designation Comment
E Ignition Electronics
F1 Not Used
F2 Fuse 15 AMP
F3 Fuse 15 AMP
F4 Fuse 20 AMP
HR Heating Element Fuel Pre-Heating
K1 Relay Fuel Pre-Heating
L1 Solenoid Valve
L2 Ignition Coil
M2 Electric Motor Heater
R Flame Detector
S2 Thermostat Fuel Pre-Heater
S3 Thermostat Control Thermostat
S4 Thermostat Overheat
X1 Connector 2-Way
X2 Connector 2-Way
X3 Connector 3-Way
X4 Connector 9-Way