Repair manual

Wire Gauges
< 7.5 m 7.5 - 15 m
0.75 mm
2
1.0 mm
2
1.5 mm
2
2.5 mm
2
4.0 mm
2
1.5 mm
2
1.5 mm
2
2.5 mm
2
4.0 mm
2
6.0 mm
2
bl
br
ge
gn
gr
or
rt
sw
vi
ws
Wire Colours
blue
brown
yellow
green
grey
orange
red
black
violet
white
Fig. 705 Circuit Diagram Automatic Control Air Top 2000 Diagnosis,
12V/24V with Control Element and Standard Timer
Item Nomenclature Remark
A1 Air Heater Air Top 2000
A2 Control Unit
B1 Flame Sensor
B2 Temperature Sensor
B3 Temperature Limiter
E Glow Plug
F2 Fuse 24V 10A/12V 15A Flat Fuse SAE J 1284
H7 LED red (in item P) Instant heat switch illumination,
standy indication,
operating indicator light
H8 Heating symbol in display (in item P) Operating indicator light,
overheat indication
H9 Light (in item P) Symbol illumination
M Motor
P2 Standard timer
S1 Control Element Rated Value Setting Switch
S3 Switch Instant heating remote control
X1-X5 Connection 2-pole of item A2
X6 Connection 8-pole of item A2
X7 Connection 4-pole of item S1
X8 Connection 2-pole
X11 Connection 6-pole of item A2
X12 Connection 1-pole Diagnosis (K-wire)
X13 Connection 12-pole of item P
Y1 Dosing Pump
with plus from terminal (15/75)
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
for TRS function only
2
1
ϑ ϑ
ϑ
705
1
2
Air Top 2000 7 Circuit Diagrams