Ebasto eThermo Top Eco 20 P, Service Instructions Manual

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10 | Wiring Diagram Webasto
18 / 19 9039398A_WSM_eThermo_Top_Eco_EN
10.1 Legend to wiring diagram
No. Description Remarks
A1 Heater e Thermo Top Eco
A2 Control unit Power pack
A3 Control unit Fan controller
A6 Relay socket with fuses
A7 Gateway LIN
PWM Fan controller
B1 Thermostat Control thermostat
B2 Thermostat Overheating protection
F1 Fuse 25A Blade fuse DIN 72581-3
F2 Fuse 5 A Blade fuse DIN 72581-3
F3 Fuse 3A Blade fuse DIN 72581-3
F4 Fuse 16A
F5 Fuse 25A Blade fuse DIN 72581-3
F6 Fuse 1A Blade fuse DIN 72581-3
FI Earth leakage cir-
cuit breaker
K1 Relay Vehicle blower
M1 Motor Circulation pump
M2 Motor Vehicle blower
R1 Tubular heating
element
R2 Ballast resistor Current limitation
S1 Switch Vehicle blower
S2 Switch Vehicle blower
V1 Diode
X1 2-pin plug con-
nection To Item A1
X2 2-pin plug con-
nection To Item A1
X3 3-pin plug con-
nection To Item M1
X6 3-pin plug con-
nection Connector with hinged lid
X9 3-pin plug con-
nection To Item A1
X11 4-pin plug con-
nection To Item A6
X12 4-pin plug con-
nection To Item A6
0000015563A7
10.2 Legend for comments
No. Description
Positive signal for activation of vehicle fan
Fuse for vehicle blower (fuse present in vehicle)
Air-conditioning control unit
10.3 Pin assignments plug connection
X1, 2-pin
No. Description
1 Circulating pump positive
2 Circulating pump negative
10.4 Pin assignments plug connection
X2, 2-pin
No. Description
1 Battery plus (terminal 30)
2 Battery minus (terminal 31)
10.5 Pin assignments plug connection
X9, 3-pin
No. Description
1 Neutral conductor N
2 Protective earth conductor PE
3 Outer conductor L
10.6 Cable colours
Abbreviation Colour Abbreviation Colour
bl blue rt red
br brown sw black
ge yellow vi violet
gr grey ws white
or orange