Viessmann VITOCROSSAL Service Instructions Manual page 20

Commissioning, inspection, maintenance
Removing the burner and checking the burner...
Burners from 200 kW
Burners for boilers from 200 kW and twin boilers from
400 kW
G
B
L
D
C
A
F
E
K
Fig. 10
Burner fixings, 4 screws
A
Ignition electrode
B
Ionisation electrode
C
Ignition transformer
D
Fan motor
E
Gas train
F
Note
Burner weight 15 kg
1. Switch OFF the mains isolator or the power supply,
and safeguard against unauthorised reconnection.
2. Close the gas shut-off valve and safeguard against
reopening.
3. Remove cables from fan motor, gas train and ioni-
sation electrode.
4. Undo gas supply pipe fitting. Pull off ventilation air
hose.
20
H
G
H
K
L
5. Undo 4 screws. Remove the burner.
6. Check the burner door gasket for damage and
(cont.)
Gas supply pipe
Ventilation air hose, only for room sealed operation
Venturi extension, required for open flue operation
with burners from 200 kW
Combustion chamber pressure switch
!
Please note
Damage to the burner gauze assembly will
impair the burner function.
Do not damage the mesh.
Never touch the mesh of the burner gauze
assembly. Place the burner on a suitable
surface.
replace if required.