Removing the burner and checking the burner gasket
(replace gasket every two years)
1.
Switch OFF the control unit ON/
OFF switch and the mains electri-
cal supply.
2.
Close the gas shut-off valve and
safeguard against reopening.
3.
Pull electrical cables off fan motor
A
, differential pressure sensor
B
, gas valve
C
, ionisation elec-
trode
D
, ignition unit
E
and earth
F
.
4.
Release gas connection pipe
G
fixing screws and fittings.
5.
Release four nuts
H
and remove
the burner.
!
Important information
Prevent damage to the wire
mesh.
Never rest the burner on the
gauze assembly.
6.
Check the burner gasket
K
for
damage.
Generally, replace the burner gas-
ket
every two years
.
Further details regarding the individual steps
(cont.)
19
Initial start-up, inspection, maintenance
56
92
548
GB
Summary of Contents for VITODENS 333
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