Webasto DBW 2010 Workshop Manual page 46

DBW 2010 / 2016
Legend Fig. 705:
Item Description
A1 Heater
A2 Control unit
B1 Flame monitor
B2 Temperature sensor
B3 Fan thermostat
F1 20 A fuse
F2 10 A fuse
F3 Fuse
F4 Fuse
F5 Thermal fuse
G Battery
H1 LED, green
H2 LED, yellow
H3 Lamps
H4 LED, green
K1 Relay (in Item A2)
K2 Relay (in Item A2)
K3 Relay (in Item A2)
K4 Relay (in Item A2)
K5 Relay
K6 Relay
K7 Relay for vehicle fan
M1 Motor
M2 Motor
M3 Motor
P Timer (digital)
S1 Switch (ON - OFF)
S2 Switch
S3 Switch
S4 Switch
S5 Switch (for vehicle fan)
S6 Switch (for vehicle fan)
S7 Switch
U Ignition spark generator
V1 Diode
W Wiring harness
X1 Plug connector, 8-pin
X2 Plug connector, 2-pin
Y Solenoid valve

Digital timer P:
With plus on Connection 9 = continuous operation with immediate heating,
without plus on connection 9 = heating duration: 1 hour

To vehicle terminal 75, if present – otherwise terminal 15

Motor vehicle lighting (terminal 58)

Hashed lines and relay K5 and K6 only when using battery switch S

Alternative

Vehicle terminal 15
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Comment
Not earthed
SG 1563
Ensure proper polarity
Polarity as desired
In water circuit, for vehicle fan (ON - OFF)
Flat fuse SAE J 1284
Flat fuse SAE J 1284
Flat fuse SAE J 1284
Flat fuse SAE J 1284
Polarity as desired
Operation indicator (in Item P)
Operation indicator (in Item P)
Symbol lighting (in Item P)
Operation indicator (when using S1)
For circulation pump
For combustion air fan
For ignition spark generator
For solenoid valve
Only necessary with battery switch in minus
Only necessary together with B3
Circulation pump
Combustion air fan
Vehicle fan
for programmed operation, no longer available
Alternative to Item P
Battery switch
On water valve
Economy mode
Alternative to Item S6
Alternative to Item S5
For circulation pump, separate ON - OFF
With ignition electrodes
In control unit Item A2
Control unit - heater
For Item P
Polarity as desired
7 Circuit Diagrams
707