Webasto Air Top 2000 D Service And Repair Manual page 28

Air Top 2000
1
Item Nomenclature
A1 Air Heater
A2 Control Unit
B1 Flame Sensor
B2 Temperature Sensor
B3 Temperature Limiter
E Glow Plug
F2 Fuse 24V 10A/12V 15A
H7 LED red (in item P)
H8 Heating symbol in display (in item P)
H9 Light (in item P)
M Motor
P2 Standard timer
S1 Control Element
S3 Switch
X1-X5 Connection 2-pole
X6 Connection 8-pole
X7 Connection 4-pole
X8 Connection 2-pole
X11 Connection 6-pole
X12 Connection 1-pole
X13 Connection 12-pole
Y1 Dosing Pump
Fig. 705 Circuit Diagram Automatic Control Air Top 2000 Diagnosis,
12V/24V with Control Element and Standard Timer
ϑ ϑ
ϑ
Remark
Air Top 2000
Flat Fuse SAE J 1284
Instant heat switch illumination,
standy indication,
operating indicator light
Operating indicator light,
overheat indication
Symbol illumination
Rated Value Setting Switch
Instant heating remote control
of item A2
of item A2
of item S1
of item A2
Diagnosis (K-wire)
of item P
7 Circuit Diagrams
2
Wire Gauges
< 7.5 m 7.5 - 15 m
2
0.75 mm 1.5 mm
2
1.0 mm 1.5 mm
2
1.5 mm 2.5 mm
2
2.5 mm 4.0 mm
2
4.0 mm 6.0 mm
Wire Colours
bl
blue
br brown
ge yellow
gn green
gr grey
or orange
rt red
sw black
vi violet
ws white
with plus from terminal (15/75)
1
to connection 10:
permanent operation during
instant heating as long as
ignition on
without plus to connection 10:
heating time programmable as
required (10 min to 120 min),
default setting 120 min.
Connection X11/2 and X11/3
2
for TRS function only
2
2
2
2
2
705