baltur BGN 40 P Betriebsanleitung Seite 44

16) Check the action of the flame detector (ionization electrode) by disconnecting the wire from the electrode and
activating the burner. The appliance must perform its cycle completely and, three seconds after the ignition flame
appears, it must stop in "lock-out". This check must also be carried out with the burner already switched on. On
disconnecting the wire from the ionization electrode, the appliance must immediately go into "lock-out". In the case
of the UV photocell, after at least one minute following ignition, remove the photocell from its seat. When the UV
photocell is removed from its seat, it cannot "see" the ultraviolet radiation emitted by the flame, so the relative relay
is de-energized. The burner stops immediately in "lock-out". Slight greasiness will have considerable effect on the
passage of ultraviolet rays through the UV photocell bulb, thus preventing the internal sensitive element from
receiving the quantity of radiation necessary for correct working. In the event of fouling of the bulb with gas oil, fuel
oil, etc., it is essential to clean it carefully. It must be specified that mere contact with the finger can leave a slight
grease mark, sufficient to affect proper working of the UV photocell. The UV photocell does not "see" daylight or the
light from a lamp. Checking the sensitivity can be done with a flame (lighter, candle) or a slight electric charge that
appears between the electrodes of a common ignition transformer. To ensure correct working, the value of the UV
cell current must be sufficiently stable, and must not fall below the minimum value required for the specific appliance;
this value is shown in the wiring diagram. It may be necessary to try and find the best position experimentally, by
sliding (axial movement or rotating) the body containing the photocell relative to the fixing clamp. Checking is
carried out by connecting a micro-ammeter, of suitable scale, in series to one or more connecting wires of the UV
photocell; the polarity (+ and -) must, of course, be respected. The appliance can only be restarted manually by
pressing the push-button provided (release). The efficiency of the lock-out must be tested at least twice.
17) Check the efficiency of the boiler thermostats or pressure switches (activation must stop the burner).
INSTRUCTIONS OF FUNCTIONING
Ensure that the burner head is perfectly centered in relation to the disk.
If it is not Perfectly centered, the flame may burn badly And overheat the head, causing rapid deterioration.
N.B. Check that the ignition occurs in a regular manner, if the passage between the head and the disk is closed, it may
occur that the speed of the mixture (combustible air) is so high that ignition is made difficult. If this occurs, then
the regulator must be opened gradually until it is in a position where the ignition occurs in a regular manner, and
this position must be accepted as the act position. Remember that, for the First flame, it is preferable to limit the
quantity of air to the bare minimum necessary for a safe ignition, even in the most demanding cases.
ELECTRODES ADJUSTMENT DIAGRAM
Ionization electrode
Ignition electrode
EN
N° 0002933440
Rev. 14/01/03
MOD. A
BGN 40P 90
BGN 60P 110
BGN 100P 110
BGN 120P 140
BGN 150P 140
BGN 200P 190
BGN 250P 190
BGN 300P 180
BGN 350P 180
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