Webasto Thermo Top E - B Installation Instructions Manual page 25

Table 2: Legend for wiring diagrams
Item Description
1 Vehicle fan fuse
External temperature sensor
2
Aerial
3
4 Ventilation option
5 Diagnosis
6 Mini-relay
A1 Heater
A2 Control unit
A3 Digital timer 1533
A4 Telestart T91
A5 Telestart T100 HTM
A6 Fuse holder
A7 W bus temperature sensor
A10 Telestart button
B2 Coolant temperature sensor
E Glow plug/flame monitor
F1 Fuse
F2 Fuse
F3 Fuse
K3 Relay
M1 Motor
M2 Motor
M3 Motor
Comment
Present in vehicle
Only for Thermo Top Z, Thermo Top Z/
C or auxiliary heating option
Only for Telestart option
Only Thermo Top E and Thermo Top C
All heaters
Only with upgrade from Thermo Top Z
to Thermo Top Z/C
Thermo Top Z/E/C or Z/C
All heaters
Thermo Top E/C and Z/C
Only Telestart T100 HTM
Integrated in control unit
20 A (with Thermo Top Z: 15 A)
1 A (with Thermo Top Z/C: 5 A)
25 A
Vehicle fan
Combustion air fan
Circulation pump
Vehicle fan
Electrical system
Item Description
S1 Vehicle fan switch
S2 Vehicle fan switch
S5 Switch
X1 6-pin connector
X2 2-pin connector
X3 2-pin connector
X4 2-pin connector
X5 2-pin connector
X6 2-pin connector
X7 2-pin connector
X9 4-pin connector
X10 4-pin connector
X11 4-pin connector
X12 4-pin connector
X13 4-pin connector
X14 6-pin connector
X16 2-pin connector
X17 4-pin connector
X18 4-pin connector
Y1 Metering pump
Connection line
for Thermo Top Z only
Connection line
only for Thermo Top Z/C
Connection line
only with Thermo Top E/C
Comment
S1 or S2 depending on vehicle
S1 or S2 depending on vehicle
Summer/winter switch
Heater control unit
Heater power supply
Glow plug/flame monitor
Circulation pump
(only with Thermo Top E/C)
Combustion air fan
not in use
Metering pump
Digital timer
Heater controls
Heater controls
Temperature sensor for W bus
Temperature sensor for W bus
Telestart T91/T100 HTM
Circulation pump
Push button
Digital timer or push button
DP2 or DP30.2
Retail accessories for auxiliary heater
Thermo Top Z upgraded to parking
heater
Retail accessories for parking heater
33