
GB-19
D
GB
NL
RUS
PL
F
E
UA
CN
Check the nozzle for signs of damage and dirt
and clean if required.
SW 21
SW 22
24
23
22
27
26
25
SW 21
8
Check the electrodes for dirt and if necessary,
clean using a cloth. Remove stubborn dirt on
the electrode rod using fine abrasive paper.
9
Check electrodes and porcelain insulators for
cracks and replace the electrodes in case of
damage.
▷
Replace the electrodes if necessary.
▷
Fit the electrode seal.
0
Clean the plates for the air intake using a cloth.
Assembly
▷
Ensure that the rubber seals between the elec-
trodes and the terminal boots are fitted correctly.
SW 21
SW 22
31
36
35
34
33
32
SW 21
▷
Ensure the electrodes are at the correct distance
from one another and correctly positioned as
regards the nozzle.
2 mm
▷
The device may only be restarted if all safety
devices have been installed.
38
37
39
41
40
42
4
Check the safety functions before commission-
ing, see page 20 (Checking the safety func-
tions and burner operation).