Technical data

8. Service Tasks DBW 2010 / 2012 / 2020 / 2022 / 300 / 350
806
Rigid pipes manufactured from steel or steel alloy or
flexible pipes from steel with a flesh thickness of at least
1.0 mm must be used as the exhaust line. The exhaust
pipe will be fixed on the heating device using for instance
connection clamps.
The dimensions permitted for the exhaust line are:
- Internal diameter:
DBW 2010 / 2012 = 38 mm
DBW 2020  .32 / DBW 300  .15 = 80 mm
DBW 2020  .33 / DBW 2022 / DBW 300 .16 / DBW 350
= 70 mm
- The maximum length of the line that is permitted: 5 m
- The maximum bending that is permitted: 270
0
As an alternative, the exhaust diversion approved by
Webasto will be installed.
8.7 Dismantling and mounting
DøKKAT
ATTENTION
Subject to the condition that there is sufficient place for
dismantling, only the following dismantling or dismounting
tasks will be permitted in mounted status
- The replacement of the temperature constrainer
- The replacement of the heat sensor
- The replacement of the fan thermostat or regulation
thermostat
- The replacement of the thermal fuse
- The replacement of the thermal fuse element
- The replacement of the burner head
- The replacement of the induction bobbin
- The replacement of the flame regulator
- The replacement of the combustion chamber
8.7.1 Heating device, disassembling and
installation
8.7.1.1 Dismantling
1. Separate the socket of the cable bunch from the
control device
2. Remove the access line of the combustion air in the
heating device if necessary
3. Remove the clamp at the exhaust exit
4. Remove the fuel pressure and return lines and clog
with a blind cap after pulling the fuel lines
Shut off the valves, if any
5. Remove the clamps on the cooling liquid hoses and
close with blind caps by pulling the hoses.
6. Remove the fixation elements at the base (bolt, nut,
washer).
7. Dismantle the heating device.
8.7.1.2 Mounting
1. Bring the heating device to mounting position and fix
it using the proper bolts, washers and nuts.
2. Fixate the exhaust exit line with a clamp.
3. Install the cooling liquid hoses and fixate with clamps.
Open the water valves.
4. Install the fuel pressure and return lines and secure
them.
5. Install, if necessary, the combustion air access line of
the heating device.
6. Install the socket of the cable bunch on the control
device.
7. Evacuate the air from the fuel supply system.
8. Evacuate the air from the cooling liquid circuit.
8.7.2 The replacement of the temperature
constrainer
WARNING
The acts for the replacement of the temperature
constrainer are the same whether the heating device is in
mounted or dismantled status.
DANGER
The excessive pressure in the cooling system must be
reduced by opening the cooling connection in the course
of the replacement of the temperature constrainer when
the heating device equipped with the control device
1563/64 is mounted.
If necessary, wait as an additional measure for the
heating device to cool down and keep a pot ready for the
cooling liquid that will be freed.
8.7.3 The replacement of the heat sensor
WARNING
The acts of replacement regarding the heat sensor are
the same whether it is mounted or dismounted.
The act of replacement will be carried out according to
9.2.2.
DANGER
The excessive pressure in the cooling system must be
reduced by opening the cooling connection in the course
of the replacement of the heat sensor when the heating
device equipped with the control device 1563/64 is
mounted.
If necessary, wait as an additional measure for the
heating device to cool down and keep a pot ready for the
cooling liquid that will be freed.