English
5.906-487.0 Rev. 00 (04/10)
19
1 Ignition electrodes
2 Fuel nozzle holder
3 Fuel nozzle, spray angle 45° or 60°, depending on
the type of appliance
4 Screw
5 Burner cover
Ignition electrodes
There is a strong spark created between the two igni-
tion electrodes to ensure that the injected fuel will ig-
nite.
The necessary ignition voltage is generated by the ig-
nition transformer.
The exact adherence to the adjustment dimensions is
a basic requirement for the proper function of the
burner, for good exhaust values and the long idle time
of the ignition electrodes.
There is always a ignition spark between the two ig-
nition electrodes, during cold and hot water operation
(continuous ignition). This is a safety measure, so
that injected fuel will be ignited in any case and can-
not accumulate unburned in the on-demand heater
(deflagration hazard).
Note
This appliance does not have a sight glass in the
burner cover.
In order to ensure a safe ignition of the injected fuel,
the adjustment dimensions must be strictly adhered
to.
5.7
Burner