baltur TBML 50MC, Инструкция по установке, эксплуатации и обслуживанию

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ENGLISH
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• The air pressure switch prevents the opening of the gas valves
if the air pressure is not the foreseen one. The pressure swi-
tch must therefore be adjusted to intervene closing the contact
when the air pressure in the burner reaches a sufficient value.
If the air pressure switch does not detect pressure greater than
that calibrated, the equipment runs through its cycle but does
not switch on the ignition transformer and does not open the
gas valves and so the burner “locks-out”. To ensure correct wor-
king of the air pressure switch, you must, with burner on and
with first flame only , increase the regulation until it is triggered
and immediately locks-out the burner. Release the burner by
pushing the appropriate button and readjust the pressure switch
to a sufficient value to detect the existing air pressure during the
operation phase of the 1st stage.
• The gas control pressure switch (minimum) prevents burner
operation when gas pressure is not the foreseen one. It is cle-
ar from the specific function of the pressure switches that the
control pressure switch for minimum pressure must make use
of the contact that is closed when the pressure switch detects
pressure greater than that for which it is regulated.
DANGER / CAUTION
Once the adjusting operations are completed, visually
check that the thin plate on which the bearing acts has a
progressive profile. Also check trough the dedicated tools
that during the passage between 1st and 2nd stage the
combustion parameters do not excessively vary from the
optimal values.
UV PHOTOCELL
Even the slightest greasiness will compromise the passage of the
ultraviolet rays through the UV photocell bulb, thus preventing the
sensitive internal element from receiving the quantity of radiation
necessary for it to work properly. If the bulb is fouled with diesel,
fuel oil, etc... it must be properly cleaned.
CAUTION / WARNING
Even by simply touching the bulb with fingers, it is possible
to leave a slight greasiness which could compromise UV
photocell operation.
The UV cell does not detect daylight or the light from a common
lamp. Sensitivity can be checked with a flame (cigarette lighter,
candle) or with the electric discharge between the electrodes of
a common ignition transformer. To ensure proper operation, the
UV cell current value should be sufficiently stable and should not
drop below the minimum value required by the specific equipment;
this value is indicated in the wiring diagram. It may be necessary
to search for the best position by sliding (axial or rotational mo-
vement) the casing that contains the photocell with respect to
the fastening clamp. This can be checked by connecting a mi-
cro-ammeter, with a suitable scale, in series to one of the two UV
photocell connection cables. Obviously the + and - polarity must
be respected. The ...equipment needs a cell current between 200
and 500 microA.