HL 90
7 Circuit Diagrams and Examples for Electrical Installation
703
Fig. 702 Operation with Switch (Full Load - Part Load) and Ventilation
4
R1
3
br
WS
B2
bl
1
2
58
30
S1
3
2
31 31
4
5
6
1
S6
75 (15)
7
K4
rt/bl
bl
sw
ge
vi
br
3
X6
Y
1 6
6
2
105
T
K3
2
4
X2
A1
B1
M
2
X3
14
E
X4
XC
XA
A2
X5
M
12
1 2 4
1
F2
K1
rt
ge
br
K2
21
XB
br
X7
58
30
75 (15)
br
R2
br
2
1
H2
H1
X00
X0
12
12
vi
4mm
3
1,5mm
2
0,75mm
2
0,75mm
2
0,75mm
2
0,75mm
2
0,75mm
2
0,75mm
2
0,75mm
2
0,75mm
2
0,75mm
2
1,5mm
2
1,5mm
2
4mm
2
4mm
2
gn
sw
1mm
2
1mm
2
1,5mm
2
1,5mm
2
0,75mm
2
0,75mm
2
2,5mm
2
2,5mm
2
1,5mm
2
1,5mm
2
0,75mm
2
2,5mm
2
rt/bl
ge
or
gn
F1F3
1,5mm
2
1
bl
1mm
2
br
1mm
2
Ventilation
Off
Heating full load
Heating part load
Heating
Ventilation
Heating
Item Nomenclature Remark
E Glow plug 4V
B2 Temperature limiter 12/24V
B1 Flame sensor 12/24V
A2 Control unit 24V
A2 Control unit 12V
A1 Heater HL 90 24V
A1 Heater HL 90 12V
X3; X5 X6 X7 X12
1
3
2
4
X4
1
2
4
5
3
6
7
8
10
11
9
12
Item Nomenclature Remark
Y Dosing pump 12V
Y Dosing pump 24V
X7 Connection 4-pole
X6 Connection 2-pole
X5 Connection 2-pole
X4 Connection 2-pole
X3 Connection 2-pole
X2 Connection 2-pole
XC Connection for tab rectable 14-pole
XB Connection for tab rectable 2-pole
XA Connection for tab rectable 6-pole
X0 Clamping connection Glow plug +
X00 Clamping connection Glow plug –
T Transistor in control unit
S6 Battery switch in vehicle
S1 Switch, heating / Off / ventilation
R2 Glow plug resistor 12V
R2 Glow plug resistor
24V
R1 Resistor
12V
Item Nomenclature Remark
R1 Resistor 24V
M Motor 12V
M Motor 24V
K4 Relay in control unit
K3 Relay in control unit
K2 Relay in control unit
K1 Relay in control unit
H2 Operating indicator light,
heating / ventilation
12V
H2 Operating indicator light,
heating / ventilation
24V
H1 Operating indicator light Operation indicator
H1 Operating indicator light Operation indicator
F3 Flat fuse 12V 10A
F3 Flat fuse 24V 7.5A
F2 Flat fuse 12V 20A
F2 Flat fuse 24V 20A
F1 Flat fuse 12V 20A
F1 Flat fuse 24V 20A
6 5 4
13 2
2
1
1
3
5
7
9
11 13
2
4
6
8
101214
XA
XB XC X2
1
2
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
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