baltur TBML 120 ME, Инструкция по установке, использованию и обслуживанию

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ENGLISH
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OPERATION DESCRIPTION WITH GASEOUS
FUEL
Burner operation is fully automatic; it starts up by enabling the main
switch and the control panel switch.
Burner operation is managed by the electronic command and control
equipment.
Blown air burners with electronic modulation may be used on hearths
under strong pressure or in a vacuum, according to the corresponding
operating curves.
They combine a very stable flame with total safety and high
performance.
The burner is fitted with an electronic cam controlled by a
microprocessor for intermittent operation, and for the control and
monitoring of the blown air gas burners. Electronic modulation
achieved by means of two step air gas regulation motors.
The burner is fitted with a valve tightness control device. To better
understand the operation of the electronic cam, read the specific
instructions in the manual provided carefully.
The term two-stage progressive operation indicates that transition
from the first to the second state (from minimum to maximum
operation) is progressive in terms of both amount of combustion air
let in and the amount of output fuel. This results in a greater pressure
stability in the gas supply network.
Ignition is preceded by the combustion chamber pre-ventilation as set
forth by the Standards, with air open and with a duration of approx.
30 seconds.
If the air pressure switch has detected a sufficient pressure, the
ignition transformer activates at the end of the ventilation phase and
after 3 seconds the safety and main valves open in sequence.
Gas reaches the combustion head, mixes with air supplied by the fan
and is ignited. The gas supply is regulated by the butterfly gas valve.
Three seconds after the valves (main and safety) come on, the ignition
transformer goes off. Thus the burner is ignited at the ignition point.
Flame presence is detected by the dedicated control device (UV
photocell).
The programmer relay moves past the locking position and sends
voltage to the (air / gas) supply regulation servo motors, which go to
the minimum point (200).
If the second stage boiler thermostat (or pressure switch) allows
it (set to a temperature or pressure value higher than the existing
value in the boiler), the (air / gas) supply servo motors will start to
turn, gradually increasing gas and combustion air supplies up to the
maximum supply to which the burner has been set (999).
The burner remains in the maximum output position as long as the
temperature or pressure reaches a value sufficient enough to cause
the intervention of the probe that rotates the gas/air flow rate regulation
servomotors. This progressively reduces the gas, combustion air and
motor's RPM (if the inverter is fitted) to the minimum.
If the threshold value (temperature or pressure), to which the complete
shut-down device (thermostat or pressure switch) is set, is reached
even with minimum gas and air output, the burner will be shut down
when the device is triggered.
As the temperature or pressure drops below the shut-down device's
(thermostat or pressure switch) set point, the burner will be turned on
again as described above.
During normal operation, the modulation probe installed on the
boiler measures any variation demands and automatically adjusts
the fuel and combustion air flow rate by starting the air/gas flow rate
modulation servomotors, modulating the output.
This causes the air/gas output control system to balance the amount
of heat supplied to the boiler with the amount it gives off during use.