68
5600 332 v1.3
Vitodens 100-W, WB1B Installation & Service
Steps
(continued)
Start-up, Inspection and Maintenance
14. Remove burner
Maintenance
Start-up and Maintenance
CAUTION
To avoid damage to the burner, do not lay burner on its
cylindrical burner tube.
Failure to heed this caution may cause damage to the
burner tube, which may lead to improper operation.
1.
Switch the burner OFF (shut off main service switch).
2.
Shut off the gas supply.
3.
Pull power cables from fan motor
A
, gas valve
B
and electrode block
C
.
4.
Pull the Venturi extension
D
from the fan.
5
. Release gas supply pipe fitting
E
.
Note:
There is a gasket between the gas valve and
this connection.
6.
Loosen four Torx (T-30) screws
F
and remove burner.
15. Check burner gasket and cylinder assembly for damage
Maintenance
Check the burner gasket
A
and burner cylinder assembly
D
for damage and replace if necessary. Replace the
cylinder burner assembly if damaged.
1.
Remove electrode block
B
.
2.
Loosen the three Torx screws and remove the thermal
insulation ring
C
.
3.
Loosen the four Torx screws and remove burner
cylinder assembly
D
and assembly gasket
E
.
4.
Fit and secure new burner cylinder assembly
D
and new assembly gasket
E
. Tighten to a torque
of 3.5 Nm (31 lb.in.) using a calibrated torque
wrench.
5.
Reinstall thermal insulation ring
C
.
6.
Reinstall electrode block
B
. Tighten to a torque
of 3.5 Nm (31 lb.in.) using a calibrated torque
wrench.