7
x
Gas burner
ROTEX GCU compact -
43
7.3.5 Setting ignition and Ionisation electrodes
The electrodes are configured at the factory.
After the replacement or for maintenance purposes, it may be
necessary to check the electrode spacing and adjust where nec-
essary (for dimensions, see fig. 7-4).
After the replacement or adjustment of the electrodes, the burner
will need to be reset; the function and leak-tightness of the elec-
trode flanges and the burner settings will need to be checked
(see section 7.3.3).
7.4
Dismantling the burner
The burner works, as a rule, almost without any wear and
residue. It may be necessary to dismantle the burner for some
cleaning and servicing jobs or if there is damage in the com-
bustion chamber area.
Burner dismantling
Ɣ
Block gas supply.
Ɣ
Disconnect ROTEX GCU compact from the power supply
(fuse, main switch switched off) and secure against uninten-
tional restart.
Ɣ
Remove the sound insulation hood (see chapter 4.4.3).
Ɣ
Remove the upper burner trim (see chapter 4.9.3).
Ɣ
Remove the safety clamp (fig. 7-5, item 1) for the Venturi
nozzle.
Ɣ
Disconnect the mains plug for the blower and the plug for the
blower controller (fig. 7-5, item 2+3).
Ɣ
Undo 4 fixing screws (fig. 7-5, item 4).
Ɣ
Remove the burner blower with burner flange from the boiler
body.
Ɣ
Remove the
burner flange seal
(fig. 7-5, item 5) and
generally replace when installing
.
Ɣ
Remove the burner surface (fig. 7-5, item 6) from the boiler
body and check for damage, replace where necessary.
CAUTION!
Ignition electrodes can break with cold deformation.
Ɣ
Dismantle the burner before adjusting the
electrodes and make the electrodes glow by using
a solder lamp.
Fig. 7-4
Adjustment of the ignition and ionisation electrodes
WARNING!
Live parts can cause an electric shock on contact and
cause fatal burns or injuries.
Ɣ
Before removing the burner, shut off the main
switch for the heater and secure against uninten-
tional restart.
DANGER OF EXPLOSION!
An incorrect burner removal and installation can lead
to gas leakages.
Ɣ
Generally replace seals.
Ɣ
Observe the fitting positions.
WARNING!
Danger of burning on hot surfaces.
Ɣ
Let the burner cool down sufficiently before
dismantling.
Ɣ
Wear protective gloves.
Содержание GCU compact
Страница 62: ...62 ROTEX GCU compact 13 x Notes 13 Notes...