FD-C (GA) Burners
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Lanemark FD-C (GA) series packaged burners offerflexible, high turn-down (gas and air) control forprocess air heating applications in convection ovens,dryers and spray booths where maximumcombustion efficiency and minimum emissionsare of prime importance.F D-C (GA) series burners are particularly suited todirect-fired applications and can be mounted directlyon to the wall of a dryer, oven or process air heatingduct to operate either in line with or at 90˚to theprocess air flow.F D-C (GA) burners utilise the latest air pressure leadђ(APL) monobloc gas valve technology. The drive motorof the combustion air damper interfaces directly withexternal plant temperature control equipment.Movement of the combustion air damper increases ordecreases the burner windbox differential air pressureand these pressure changes are transmitted to themaster gas control valve, simultaneously adjusting thegas flow rate. This ensures that safe and efficientgas/air ratios are maintained at all times, evenunder variable plant operating conditions.Two main advantages of this control method result:1. Alternative fixed gas/air valve linkage controlarrangements are not capable of making these gasflow adjustments in direct response to changingplant conditions.2. There are no mechanical linkages between the gasand combustion air control valves/dampers. Onprocess plants mechanical linkages are prone tomoving out of adjustmentђ or in extreme casesstickingђ which can lead to potentially dangerouscombustion conditions. > FD5-C (GA)9 -220 kW(30,000 - 750,000 Btu/h) FD10-C (GA)13 -352 kW(45,000 - 1,200,000 Btu/h) FD15-C (GA)18 -660 kW(60,000 - 2,250,000 Btu/h)FD20-C (GA)22 -880 kW(75,000 - 3,000,000 Btu/h) Burner turn-down is determined by the ratio of the high and lowgas firing rates. The maximum turn-down ratio is 40:1. Product finishing Textile andfabric dryers Pre-treatment dryers֖Final treatmentovens for paint dryingConveyor andbatch ovens֖Spray booths Rotary mouldingmachines Food processing Powder andgrain dryers > FD burners conform with European Standards EN 676 and EN 746 as appropriate and are pre-wired and tested prior to despatch. The standard FD-C (GA) burner comprises a burner windboxincluding a protective burner cowl, combustion air fan, amotorised air butterfly damper fitted between the combustionair fan and the air entry flange on the burner windbox, acompact monobloc air/gas regulator valve gas train and gasburner controls mounted in a control box.Standard control items include a burner controller, ignitiontransformer and differential air pressure switch. Two 3-way airvalves perform safety checks on the air pressure switch inboth open and closed modes each time the burner fires,allowing the independent operation of the combustion air fanin conjunction with oven/dryer main recirculation fans. > Fuels Natural gas Propane Control voltages 230V 110V Combustion air fan electrical supplies 400V/3ph/50Hz 230V/1ph/50Hz Flame sensing Flame electrode UV scanner Heat output control options High/low Modulating (gas and air)3 wire valve positioning 4 - 20mA( 2 4 / 1 1 0 / 2 3 0 V ) 0 - 10V DC >