Webasto Air Top 2000 D Service And Repair Manual page 30

Air Top 2000
1
CAUTION:
Pin 4 no ground connection
Item Nomenclature
A1 Air Heater
A2 Control Unit
B1 Flame Sensor
B2 Temperature Sensor
B3 Temperature Limiter
E Glow Plug
F2 Fuse 24V 10A
H6 Light (at least 1.2 W)
H7 LED red (in item P)
H8 Heating symbol in display (in item P)
H9 Light (in item P)
M Motor
P1 Combination Timer (1531)
S2 Disconnect Switch 1 or 2-pole
S3 Switch
S4 Switch
X1-X5 Connection 2-pole
X6 Connection 8-pole
X8 Connection 2-pole
X9 Connection 2-pole
X11 Connection 6-pole
X12 Connection 1-pole
X13 Connection 12-pole
Y1 Dosing Pump
Y2 Solenoid valve
Fig. 707 Circuit Diagram Automatic Control Air Top 2000 Diagnosis,
24V TRS Operation with Combination Timer
ϑ ϑ
ϑ
Remark
Air Top 2000
Flat Fuse SAE J 1284
Operation indication
conveyor facility
Instant heat switch illumination,
standy indication,
operating indicator light
operating indicator light,
overheat indication
Symbol illumination
Emergency-off Switch;
electr. or pneum.
Instant heating remote control
Conveyor facility I
of item A2
of item A2
of item A2
of item A2
Diagnosis (K-wire)
of item P
for conveyor facility II
7 Circuit Diagrams
Wire Gauges
< 7.5 m 7.5 - 15 m
2
1.5 mm
0.75 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.
2
2
2
2
2
707