Checking The Burner Gasket And Burner Gauze Assembly - Viessmann Vitodens 222-F Installation And Service Instructions For Contractors

Commissioning, inspection, maintenance
Removing the burner
3. Remove the cover panel; see page 30.
4. Disconnect cables from fan motor
ignition and ionisation electrode
and earth tab .
E
5. Undo the fitting from gas supply pipe

Checking the burner gasket and burner gauze assembly

Check burner gasket
A
E for possible damage and replace if required.
B
Fig. 30
1. Remove electrodes
B
2. Undo 2 retaining clips
and then remove thermal insulation ring
D
3. Undo 2 Torx screws and remove burner gauze
assembly with gasket
E
4. Insert new burner gauze assembly
gasket and secure.
F
Torque: 5.0 Nm.
40
(cont.)
, gas train
A
, ignition unit
C
.
F
and burner gauze assembly
F E
2x
.
on thermal insulation ring
C
D
.
F
with new
E
6. Undo four screws
!
, Please note
B
Prevent damage to the burner.
D
never rest the burner on the burner gauze
assembly.
D A
2x
C
5. Fit thermal insulation ring
6. Fit electrodes
. Torque: 4.5 Nm.
G and remove the burner.
.
D
.
B