Webasto DBW 2010 Workshop Manual page 44

DBW 2010 / 2016
Legend Fig. 701 to Fig. 704:
Item Description
1 Heater
2 Control unit
4 Ignition spark generator
5 Thermostat
7 Thermostat
8 Thermostat
10 Ignition electrodes
61.3 Interference suppression set (2x) Radio interference suppression
F1 Thermal fuse
F2 20 A fuse
F3 10 A fuse
F4 Fuse
F5 Fuse
H1 Lamp, green
H2 Lamp, for circulation pump
K1 Relay
K2 Relay
K3 Relay
K4 Relay
K5 Relay
K7 Relay
M1 Motor
M2 Motor
M3 Motor
R Flame monitor
S1 Switch
S3 Switch on water valve
S4 Switch
S6 Switch
X1 Plug connector
X2 Plug connector
X3 Plug connector
Y1 Solenoid valve
A installed in heater
B loose delivered parts
C only if required
D present in vehicle
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Comment
Not earthed
SG 1553
Control thermostat (internal)
Fan thermostat
Temperature limiter thermostat
Independent of polarity
Flat fuse SAE J 1284
Flat fuse SAE J 1284
Flat fuse SAE J 1284
Flat fuse SAE J 1284
Operation indicator
If operated via S4
Circulation pump; minus for heater
Heater motor
Lamp; operation of control thermostat
Ignition spark generator
Solenoid valve; flame monitor
Fan of vehicle heater
Circulation pump
Heater motor
Vehicle fan
Photo resistor, Independent of polarity
for heater ON - OFF (starting current max. 2 A)
Contact open when water valve closed
For ON - OFF; circulation pump separate
Vehicle fan
2-pin
1-pin
2-pin
Independent of polarity
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7 Circuit Diagrams
Fixed assignment
Possible depending on delivery scope or design
A B C D
705