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Webasto DBW 2010 Service And Repair Manual

Webasto DBW 2010
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www.webasto.us 41 Webasto Product N.A., Inc.
DBW 2010/2020/300 COOLANT HEATERS CIRCUIT DIAGRAMS
7.7 SCHOLASTIC HEATER 12 V - WITH 7-DAY TIMER MODEL 1531
Figure 32: Schematic - Scholastic Heater™ With Digital 7-Day, 3 Program Timer Model 1531
BT BATTERY
E IGNITION ELECTRODES
F1 FUSE 15A
F2 FUSE 20A
F3 FUSE 15A
F4 OVERHEAT FUSE 138°C
F5 FUSE 30A
HR HEATING ELEMENT
(fuel pre-heater)
I INERTIA SAFETY SWITCH
K1 RELAY (heater activation)
K2 RELAY (fuel pre-heater)
L1 SOLENOID VALVE
L2 IGNITION COIL
M1 COOLANT CIRCULATION PUMP
M2 HEATER MOTOR
P2 7-DAY TIMER MODEL 1531
R FLAME DETECTOR
S2 PREHEAT (FUEL) THERMOSTAT
(blue and blue wires)
S3 CONTROL THERMOSTAT
(green and red wires)
S4 TEMPERATURE LIMITER
(green and green wires)
X1 HARNESS CONNECTOR (round)
X2 3-WAY CONNECTOR
X3 TIMER HARNESS CONNECTOR
X4 TIMER CONNECTOR
P2
2
3
5
1
6
4
8
10
4
11
12
2
1
VIOLET
GRAY
BROWN
BROWN
RED
BLACK
WHITE
GREEN
RED
BLACK
YELLOW
7-DAY TIMER 1531
X4
X3
VEHICLE
IGNITION +
DASH LAMPS
(OPTIONAL)
WIRING CABLE
TO THE HEATER
WHITE
WHITE
WHITE
VIOLET
F4
WHITE
WHITE
H
WHITE
BLACK
BLUE
VIOLET
GREEN
GREEN
GREEN
RED
ORANGE
WHITE
BROWN
BLACKBLACK
BLUE
GREEN
YELLOW
BROWN
BROWN
BROWN
BLUE
BLUE
BLACK
BLACK
GREEN
RED
BLUE
BLACK
ORANGE
GREEN
BROWN
BROWN
BROWN
BROWNBROWN
BROWN
BROWN BROWN
BROWN
BROWN
BROWN
REDREDRED
RED RED
BROWN
L1
R
L2
E
S4S3
M2
HR
S2
K2
BT
M1
A
B
C
C
A
B
M
1
2
4
1
3
6
5
2
52 17
4
68
65
3
4
2
1
85
86
87
30
+
CONTROL UNIT
HEATER
1 2
3
45
62
1
1 2
3
4
5
6
7
8
BLACK
BROWN
M
E
F
G
A
B
C
J
BLUE
BLACK
GREEN
I
2
1
3
K1
85
86
87
30
F5
X1
X2
F1
F2
F3
E
F CDAB
RED
BLUE
ORANGE
GREEN
RED
RED
GRAY
(Remote pump activation)
D
GRAY
GRAY
WHITE
GREEN
RED
BLACK
TO
TIMER

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Webasto DBW 2010 Specifications

General IconGeneral
BrandWebasto
ModelDBW 2010
CategoryWater Heater
LanguageEnglish

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