Circuit diagrams (additional heater)
12
Circuit diagrams (additional heater)
12.1. Legend for circuit diagrams
➀
Diagnostic
➁
External temperature
➂
Cooling water
➃
Vehicle fan fuse fitted in the vehicle
Cable cross-sections
< 7.5 m
2
0.5 mm
2
0.75 mm
2
1.0 mm
2
1.5 mm
2
2.5 mm
2
4.0 mm
46
Cable colours
7.5 - 15 m
bl
blue
2
0.75 mm
br
brown
ge
yellow
2
1.5 mm
gn
green
2
gr
grey
1.5 mm
or
orange
2
2.5 mm
rt
red
sw
black
2
4.0 mm
vi
violet
ws
white
2
6.0 mm
Thermo Top Z / Thermo Top C
Item Designation
A1
Heater
A2
Control module
A3
Connection box
B2
Temperature sensor
E
Glow plug / Flame monitor
F1
20 A fuse
F2
5 A fuse
F3
25 A fuse
H1
LED (in item P)
K3
Relay (in item A3)
M1
Motor
M2
Motor
M3
Motor
P
Timer, digital
S1
Switch for vehicle fan
S2
Switch for vehicle fan
S6
Switch
X9
Plug connector, 4-pin
X11
Plug connector, 2-pin
X13
Plug connector, 2-pin
X14
Plug connector, 6-pin
X15
Plug connector, 2-pin
X16
Plug connector, 2-pin
X17
Plug connector, 2-pin
X18
Plug connector, 2-pin
X19
Plug connector, 2-pin
Y1
Metering pump
Comment
Thermo Top Z/C
Blade-type fuse DIN 72581 Part 3
Blade-type fuse DIN 72581 Part 3
Blade-type fuse DIN 72581 Part 3
Switch-on indicator
Vehicle fan
Combustion air fan
Circulating pump
Vehicle fan
For programmed operation
S1 or S2 depending on vehicle
S1 or S2 depending on vehicle
ON/OFF
Water-repellent
Water-repellent
Water-repellent
Water-repellent
Water-repellent
Water-repellent