Legend For Circuit Diagrams - Webasto Air Top 2000 ST B Installation Instructions Manual

Air Top 2000 ST
12

Legend for circuit diagrams:

➀
With positive from terminal (15/75) to connection 10:
Permanent operation for immediate heat as long as the ignition
is switched on
Without positive at connection 10:
Heating time is variably programmable (10 min to 120 min),
default setting 120 min
➁
Diagnostic K cable
➂
W bus
➃
Inputpin (pin 16/plug X6, cable colour on wiring harness: ws/rt):
„Ventilation" (fan speed depends on the position of the control
element)
➄
CO adjustment (see workshop manual)
2
➅
NOTE:
If the connection is made to terminal 30, permanent heating is
possible when the ignition is switched off!
In this case no connection must be made to terminal 15/75.
➆
Fuse installed in vehicle
➇
If an external temperature sensor (B4) is used, resistor R1 must be
replaced by the temperature sensor (B4).
➈
Connection for ADR vehicles only
➉
NOTE:
Grey and violet cables required for ADR function
Signal for battery isolation switch
11
The relay input (if available) of the isolation switch (S2) must be
connected to the control unit Pin 15/Plug X6.
Legend for circuit diagrams:
Cable cross-sections
< 7.5 m
2
0.75 mm
2
1.0 mm
2
1.5 mm
2
2.5 mm
2
4.0 mm
Cable colours
bl blue
br brown
ge yellow
gn green
gr grey
or orange
rt red
sw black
vi violet
ws white
7.5 - 15 m
2
1.0 mm
2
1.5 mm
2
2.5 mm
2
4.0 mm
2
6.0 mm
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