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. 704 Circuit Diagram Automatic Control Air Top 2000 Diagnosis, 12V/24V with Combination 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
P1
Combination Timer (1531)
S3
Switch
Instant heating remote control
X1-X5
Connection 2-pole
of item A2
X6
Connection 8-pole
of item A2
X8
Connection 2-pole
X9
Connection 2-pole
of item A2
X11
Connection 6-pole
of item A2
X12
Connection 1-pole
Diagnosis (K-wire)
X13
Connection 12-pole
of item P
Y1
Dosing Pump
704
ϑ
ϑ
ϑ
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
1
1
2
2
7 Circuit Diagrams
Air Top 2000