Technical data

DBW 2010 / 2012 / 2020 / 2022 / 300 / 350 7.The Circuit Diagrams
711
Pos. Definition Note
A1 Heating device Without chassis
A2 Control device SG 1564
B1 Flame regulator Pay attention to the pole
connection
B2 Heat sensor Polarity connection makes no
difference
B3 Thermostat Pre-heating of the nozzle block
B4 Thermostat Fan thermostat
F1 Thermal fuse Polarity connection makes no
difference
F2 Fuse 8 A Car fuse complying with DIN
72581
F3 Fuse 8 A (DBW 2022 –
16 A at 12 V)
Car fuse complying with DIN
72581
F4 Fuse 12 V = 16 A / 24 V
= 8 A
Pole connection makes no
difference
F5 Fuse, vehicle fan Car fuse complying with DIN
72581
F6 Fuse, vehicle fan Car fuse complying with DIN
72581
G Battery
H1 Illuminated diode, green Function indicator (at Pos. P)
H2 Illuminated diode, yellow Indicator for ready status (at
Pos. P)
H3 Lamps Symbol illumination (at Pos. P)
H4 Illuminated diode, green Function indicator (when S1 is
used)
K1 Relay (at pos. A2) For the circulation pump
K2 Relay (at pos. A2) For the burner fan
K3 Relay (at pos. A2) For the induction bobbin
K4 Relay (at pos. A2) For the magnetic valve
K5 Relay For the pre-heating of the
nozzle block
K6 Relay It is only necessary at negative
when there is battery switch
KY Relay
K7 Relay, for the vehicle fan It is only necessary with B3
K10 Relay with free work
diode
For the pre-heating of the
nozzle block
K11 Relay For the vehicle fan
M1 Motor Circulation pump
M2 Motor Burner fan
M3 Motor Vehicle fan
P Program timer (digital) For programmed work / not for
ARD
Poz. Tanım Not
S1 Switch (ON-OFF) Alternative to Pos. P
S2 Switch Separate ON /UPFA
S3 Switch At the water faucet
S4 Switch (for the
vehicle fan)
Alternative to Pos. S5
S5 Switch (for the
vehicle fan)
Alternative to Pos. S4
S6 Switch Battery switch at positive or
negative
U1 Induction bobbin At Pos. A1
V1 Diode Control device at Pos. A2
V2 Diode
V3 Diode
W1 Cable bunch Control device – heating
device
W2 Cable bunch Pre-heating of the nozzle
block
S1 Switch (ON-OFF) Alternative to Pos. P
S2 Switch Separate ON /UPFA
X1 Socket connection
with 2 pins
Marking: black
X2 Socket connection
with 2 pins
X3 Socket connection
with 2 pins
Marking: blue
X4 Socket connection
with 2 pins
At Pos. W2
X5 Socket connection
with 8 pins
At Pos. P
X6 Socket connection
with 1 pin
At Pos. P
X7 Socket connection
with 2 pins
At Pos. A1
X8 Socket connection
with 2 pins
At Pos. A1
Y Magnetic valve Polarity makes no difference
1
2
3
4
5
6
Program timer P
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) Relay K6 and K7 with
the hatched lines only if the battery switch s6is used
K10 only with the free work diode
Only at the pre-heating of the nozzle block
Figure 705 Automatic circuit, DBW 2012 and 2022 (ARD) equipped with the control device 1564, 12 and 24 Volt
(page 2 / 2)
Cable colors
Bl
Br
Ge
Gn
Gr
Or
Rt
Sw
Vi
ws
Blue
Brown
Yellow
Green
Grey
Orange
Red
Black
Violet
White
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