baltur 56495410, Installation, Use And Maintenance Instruction Manual

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ENGLISH
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0006081544_201907
• The gas control pressure switch (minimum) prevents burner
operation when gas pressure is not the foreseen one. It is clear
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.
• During burner ignition, when it passes to the first stage, the air/
gas servomotor takes for a few seconds the burner to a delivery
higher than the first stage.
DANGER / ATTENTION
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.
DANGER / ATTENTION
The burner must not operate below the stated minimum
capacity, in order to prevent damages to the combustion
head components.
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 / WARNINGS
Even by simply touching the bulb with fingers, it is possible
to leave a slight greasiness which could compromise UV
photocell operation.
The UV photocell 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 photocell 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 tentatively find the best position
by sliding (axial or rotational movement) the casing that contains
the photocell with respect to the fastening clamp. This can be
checked by connecting a micro-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
photocell current between 200 and 500 microA.
CONTROLS
• After starting up the burner, check the safety devices (flame
detector, lock-out system, thermostats)
• The flame control device should trip if the flame extinguishes
during operation (this check should be made after at least 1
minute after ignition)
• The burner must shut down in lock position and remain in that
condition when, upon ignition and during the time preset by the
command equipment, the flame is not ignited. The lock-out
causes the immediate stop of the motor and burner and the
switching on of the corresponding lock-out light indication. To
check the efficiency of the flame detector and lock-out system,
proceed as follows:
- Start the burner.
- After at least one minute, remove the flame detector from its
housing and simulate flame failure (use a rag to close the
specific opening on the flame detector). The burner flame
should go to out. The equipment goes into lock-out within
the time pre-set by the programme. The equipment can be
reset only manually by pressing the specific button.