DAF 95XF. Manual — part 369
5
CHANGES IN THE ELECTRICAL SYSTEM
Changes in the electrical system from chassis number 0E527418
5-28
40A EBERSPÄCHER CAB HEATER (WITH THERMOSTAT UNIT)
The air heater is a separate heater which
functions entirely independent of the vehicle. A
temperature sensor which is installed in the
thermostat unit (E566) measures the cab
temperature. This sensor sends a signal to the
electronic unit (D871) which controls the
heating.
As a result, the cab temperature automatically
remains at the preset temperature. In that case,
the blower is in continuous operation.
OPERATION OF CAB HEATER
The air heater can be activated using the button
on thermostat unit E566. If this button is
switched to the “interior heating” position, the
heater will be activated. A green lamp will now
light up in the thermostat unit.
If the heater is on, it will activate the fan in the
heating unit.
At the same time the fuel feed pump for the
Eberspächer cab heater (B122) is activated, so
that the correct amount of fuel is fed to the
ignition chamber of the heating unit.
If the fuel is ignited, a temperature sensor
(installed in the thermostat unit) will apply a
voltage to the heating unit so that the heating
unit switches off when a certain temperature is
reached.
If the sensor measures a lower temperature
than the temperature preset by the driver (using
the temperature adjusting knob on the
thermostat unit), the heating power will be
adjusted.
In the case of overheating, the thermal
protection will switch off the fuel pump. This will
switch off the heating.
SEE THE SYSTEM MANUAL FOR MORE
INFORMATION
11
ǹ 0209
5
Changes in the electrical system from chassis number 0E527418
CHANGES IN THE ELECTRICAL SYSTEM
5-29
40A
1316630/30
EL000629
1
23456789
1
0
1
1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
1
9
2
0
2
1
2
2
2
3
2
4
2
5
2
6
2
7
2
8
2
9
3
0
3
1
3
2
3
3
3
4
3
5
3
6
3
7
3
8
3
9
4
0
4
1
4
2
4
3
4
4
4
5
4
6
4
7
4
8
4
9
5
0
5
1
5
2
5
3
1156
3452
3410
1201
3402
3410
1201
1156
3452
3410
1201
1201
1156
1156
4939
9003
4941
5117
3037
1020
1020
1020
3037
3557
3557
4936
4936
4936
4660
4935
1211
3410
4660
12/
269
3/
269
10/
269
14/
269
2/
269
E566
11/
269
7/
269
D871
1
14
12
1
5
9
1
11
01
3
7
4
12
483
7
397
5
380
7
378
3
483
8
483
11
483
6
483
31
115
C778
5
71
0I
1156
4660
4935
4660
5
483
30
115
A021
14
B122
M
2
1
F000
2
G303
85
1
A502
D+
1
F087
1
14/401
D878
1010
1000
1010
1000
E114
15A
E035
10A
G240
3402
3
5
1
2
4
1211
E031
15A
15/401
16/400
14/400
12/400
13/400
34/402
11/482
4/482
9/482
12/482
15/482
10/482
13/482
7/482
1/482
14/482
D591
19/
333
15
380
4
483
1
483
G300
3
1
24
5
DVB
11
ǹ 0209
5
CHANGES IN THE ELECTRICAL SYSTEM
Changes in the electrical system from chassis number 0E527418
5-30
40B EBERSPÄCHER CAB HEATER (WITH TIMER)
The air heater is a separate heater which
functions entirely independent of the vehicle. A
temperature sensor (F509) measures the
temperature inside the cab. This sensor sends a
signal to the electronic unit (D871) which
controls the heating.
As a result, the cab temperature automatically
remains at the preset temperature. In that case,
the blower is in continuous operation.
OPERATION OF CAB HEATER
The air heater can be started with switch C844.
If the system is activated with this switch, a
green lamp in the timer will light up.
If the heater is on, it will activate the fan.
At the same time the fuel feed pump for the
Eberspächer cab heater (B122) is activated, so
that the correct amount of fuel is fed to the
ignition chamber of the heating unit.
If the fuel is ignited, a temperature sensor
(F509) will apply a voltage to the electronic unit
D871 through wire 4941 so that the heating unit
(D871) switches off when a certain temperature
is reached.
If the sensor measures a lower temperature
than the temperature preset by the driver (using
the temperature adjusting knob on the timer),
the heating power will be adjusted.
In the case of overheating, the thermal
protection will switch off the fuel pump. This will
switch off the heating.
SEE THE SYSTEM MANUAL FOR MORE
INFORMATION
11
ǹ 0209
5
Changes in the electrical system from chassis number 0E527418
CHANGES IN THE ELECTRICAL SYSTEM
5-31
40B
1316630/30
EL000630
1
23456789
1
0
1
1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
1
9
2
0
2
1
2
2
2
3
2
4
2
5
2
6
2
7
2
8
2
9
3
0
3
1
3
2
3
3
3
4
3
5
3
6
3
7
3
8
3
9
4
0
4
1
4
2
4
3
4
4
4
5
4
6
4
7
4
8
4
9
5
0
5
1
5
2
5
3
1156
1156
1156
1156
1156
4939
9003
9003
9003
5117
1156
1156
3037
3037
4936
4936
4941
4941
4936
4660
4660
4660
4660
4660
4935
4935
6/
269
4/
269
9/
269
2/
269
E581
7/
269
10/
269
11/
269
12/
269
D871
1
12
9
1
0
13
11
7
4
D878
1010
1000
1010
1000
E114
15A
12
483
34/402
1
483
11
483
6
483
31
115
4
483
15
380
21
380
30
115
5
483
A021
14
B122
M
2
1
2
1
F509
7
397
C844
4
I0
28
12/482
9/482
4/482
13/482
10/482
11/482
7/482
1/482
11
ǹ 0209
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