Technical data

7.The Circuit Diagrams DBW 2010 / 2012 / 2020 / 2022 / 300 / 350
712
Pos. Definition Note
A B C D
H1 Illuminated diode,
green
Work indicator
(at Pos. p)
H2 Illuminated diode
yellow
Indicator for
ready status
(at Pos. p)
H3 Lamps Symbol
illumination (at
Pos. P)
K9 Relay It is only
necessary at
negative when
there is
battery switch
K10 Relay
P Program timer (digital) For
programmed
work
S2 Switch Battery switch
S3 Switch on the water
valve
Contact is
open when
the water
valve is closed
S4 Switch (ON – OFF) Separate
circulation
pump ON -
OFF
Poz. Definition Note A B C D
X4 Socket
connection
With 8 pins (for
Pos. P)
A
B
C
D
1
2
3
Installed in the heating device
Part that is delivered without connection
Only in case of need
Available in the vehicle
Inseparable match
According to the scope of the delivery or the type
Positive connection at 9 = continuous work at immediate
heating
Positive connection not at 9 = heating period 1 hour
Clamp 75, if available, in the vehicle direction, and clamp
15 if not available
Vehicle illumination (clamp 58)
Figure 706 Application sample, DBW 2010/2020/300, Volt, works with program timer and battery switch
Cable Cross-section
< 7,5 m 7,5 - 15 m
0,75 mm2 1,5 mm2
1,0 mm2 1,5 mm2
1,5 mm2 2,5 mm2
2,5 mm2 4,0 mm2
4,0 mm2 6,0 mm2
Cable colors
Bl
Br
Ge
Gn
Gr
Or
Rt
Sw
Vi
ws
Blue
Brown
Yellow
Green
Grey
Orange
Red
Black
Violet
White
WARNING
The circuit dia
g
ram of the a
pp
lication
example is related to Figure 701 or 702