baltur TBML 350 ME Installation, Use And Maintenance Instruction Manual page 54

ENGLISH
DESIGN CHARACTERISTICS
The burner consists of:
• Ventilating part in light aluminium alloy.
• Centrifugal fan for high performances.
• Intake air conveyor.
• Combustion head complete with stainless steel nozzle.
• Flame inspection glass.
• Three-phase electric motor to run fan.
• Air pressure switch to ensure the comburent air presence.
• Gas train complete with control valve, operating and safety valves,
valve seal control, minimum and maximum pressure switch,
pressure control and gas filter.
• Fuel flow rate regulation by means of servomotor controlling gas
valve and flow rate regulator.
• Automatic burner command and control equipment with
microprocessor in accordance with European standard EN298
integrated with valve seal control.
• Flame presence control with UV detector.
• Control panel including on/off and burner off switches, fuel selector,
operation and shut-down warning lights, keypad for programming
electronic cam.
• Electric system with protection class IP54.
OPERATING RANGE
mbar
1
TECHNICAL FUNCTIONAL CHARACTERISTICS
• Dual burner, able to operate alternately with natural gas or with
diesel (max viscosity 1.5° E at 20°C).
• EC approval according to European Standard EN 676 for natural
gas and Standard EN 267 for diesel.
• Progressive / modulating two-stage operation for both fuels.
• Electronic command and control equipment with microprocessor.
• Fuel / comburent air flow rate regulation by means of two
servomotors controlled by the electronic equipment
• Combustion head with partial recirculation of combusted gases
with reduced emissions (class III according to EN 676 for natural
gas, class II according to EN 267 for diesel).
• Hinge opens both ways to permit convenient access to the mixer
without dismantling the burner from the boiler.
• Air minimum and maximum flow rate regulation by means of electric
stepper servomotor with pause closure of damper to prevent any
heat dispersion to flue.
• Valve seal control and power regulation functions according
to European Standard EN 676 (read carefully the operating
instructions given in the GUIDE supplied along with the burner for
further details about the equipment operations).
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Minimum power adjustable with diesel.
IMPORTANT
The working fields are obtained from test
boilers corresponding to the standard EN267
for liquid fuels and EN676 for gas fuels and are
indicative for the combination burner-boiler.
For correct working of the burner, the size of
the combustion chamber must correspond to
current regulations; if not the manufacturers
must be consulted.
The burner should not work outside the
indicated work range.