Technical data

DBW 2010 / 2012 / 2020 / 2022 / 300 / 350 9.The Repair
909
Application, DBW 2020 / 300 / 350
WARNING
There is no need for catch in the equipment set of DBW
2020 / 300 heating devices.
1. Open the burner head as indicated in 8.5.1.
2. Remove the ignition electrodes as indicated in
9.2.14.1.
3. Dismount the flame regulator as indicated in 9.2.13.1.
4. Dismount the high pressure nozzle as indicated in
9.2.10.1.
5. Remove the existing disc from the nozzle block and
put it at a separate place.
6. Install the heating cartridge (3) in the nozzle block (8)
and fixate it with attachment wire (2).
7. Install the disc (4) on the nozzle block.
8. Fixate the thermostat (7) with the knurled washer (5)
and nut (6) on the disc (4).
9. Install the flame regulator and the high pressure
nozzle as indicated in 9.2.13.2 and 9.2.10.2.
10. Fixate the relay (11) with the steel screw (9) and
knurled washer (10) on the protection cover (12) of
the burner head.
WARNING
The polarity is not important in the work step mentioned
below.
11. Place the flat socket bushings in the proper
fashion in the socket bushing with 2 pins for the
connection of the heating cartridge.
WARNING
Pass the cable bunch (1) behind the magnetic valve and
pull it outside together with the socket bushing with 2 pins
using a rubber jacket
12 stablish the electrical connection between the
cable bunch (1), heating cartridge (3), thermostat
(7) and relay (11).
13 nstall the ignition electrodes as indicated in
9.2.14.2.
14 lose the burner head as indicated in 8.5.1.
15 eparate the A socket from the control device
1563.
16 Establish the electrical connections between the
X4 socket bushing, relay K10 (13) and A socket
as exhibited in the figure (page 909).
17 If necessary, fix K10 relay on burner head cover.
Additional equipment for DBW 2020 / 300 / 350
01 Cable bunch
02 Attachment wire
03 Heating cartridge
04 Disc
05 Knurled washer
06 Nut
07 Thermostat
08 Nozzle block*
09 Steel screw*
10 Knurled washer*
11 Relay K5
12 Protection cover of the burner head*
13 Relay K10
*It is not included in the spare part
set
Socket
X4