LMV – Innovative electronic air-fuel ratio control Control Products & Systems OEM

Complete solutions from a single source Economical operation and environmental protection are important criteria with plant for large building complexes and in industrial process heat generation. With large burner and boiler capacities, efficiency becomes a major cost factor. Also, high emission levels can cause problems to plant operators. Up to now, burners have been equipped with mechanical air-gas ratio control (cam with mechanical linkage between air and gas damper or oil controller). A complicated mechanical system, poor repetition accuracy and difficult and time-consuming settings were...

Safety, efficiency and user-friendliness Future-oriented burner management from Siemens In addition to products for floor-standing and wall-hung boilers, Siemens develops, produces and supplies components for use with forced draft standard burners and industrial burners. The comprehensive range of products includes burner controls, actuators, sensors and flame detectors, control systems, valves, test equipment and integrated system solutions. These products and systems enable us to offer optimum solutions for our customers’ market segments. They include single- and multi-family houses (residential...

LMV2/3 - Flexibility in standard applications Application areas The LMV2/3 air-fuel ratio control system is used for the control of modulating or multi-stage oil or gas burners of medium capacity. A simple user and service friendly interface with LCD enables the LMV2/3 to be commissioned quickly and ensures efficient and cost-saving maintenance of the entire system. The benefits offered by electronic air-fuel ratio control are independent ratio curve settings and flexibility in terms of burner design. Fuel and air actuators can be fitted anywhere without having to give consideration to mechanical...

Flame detector Intermittent operation BCI QRA4 Continuous operat Ionization Modbus BACS, Desigo LMV2/3 – Ease of use and extensive functionality Depending on the individual unit versions, the LMV2/3 burner management system provides a number of variable program sequences for control of the burner. There is a choice of gas and oil programs, with or without pilot burner, depending on the application and the basic unit version. Even dual-fuel applications with the AGM60 fuel changeover unit are possible. BACS, Desigo Extremely straightforward The LMV2/3 burner management system not only simplifies...

pressure switch pressure switch yellow flame, intermittent operation pressure switch intermittent and continuous operation UV cell, intermittent operation pressure switch pressure switch controller input ■ ■Load Option for dual-fuel operation motor control for fuel Perfectly equipped The inputs and outputs can be used for both oil and gas burners. Actuators with torques up to 3 Nm can be connected via an integrated power pack. motor control for air damper A connection facility is available for fuel meters. The LMV3

Perfectly matched to the type of burner The LMV2/3 is the ideal basic unit for any type of burner of medium capacity, be it oil, gas or even dual-fuel burner (modulating or multi-stage) – a solution is always at hand. By selecting the type of fuel train, the required parameters, such as type of flame detector, are automatically preset. This simplifies the configuration and saves commissioning time. You can choose whether you want to use the LMV2/3 as a proper burner control for pneumatic or electronic air-fuel ratio control. LMV2/3, oil, 3-stage with universal controller and Modbus connection...

Universal controllers Operating units Damper actuators Flame detectors Oxygen sensor LMV5 – Assistant for heavy duties Application areas The LMV5 burner management system has the burner control, electronic air-fuel ratio control and gas valve proving integrated in its basic unit. Optionally, the system can be equipped with a load controller, VSD control and O2 combustion optimization. The load controller features an electronic safety limit thermostat. Type LMV52.4 also offers a temperature-compensated flue gas recirculation function for “super” low NOx applications, along with specific O2 control...

LMV5 – Straightforward service and ease of operation Extremely straightforward The LMV5 burner management system not only simplifies burner design but also makes the production process, mounting and service work more efficient: The complex linkage required with mechanical air-fuel ratio control is no longer needed and flexibility in terms of mounting is considerably increased. The compact basic unit can be fitted directly in or on the burner or, using a powerful data bus, in a control panel. Since mechanical linkage is no longer required, electronic air-fuel ratio control offers a new kind of...

safety contact supply loop yellow flame, intermittent operation flange ON/OFF pressure switch load controller input continuous operation infrared flicker detector cont. operation supply transformer UV cell cont. operation intermit. operation flame safeguard pump/ coupling Load controller Variable program sequences for existing fuel trains Optimized for the requirements placed on large burners, the LMV5 is equipped with terminals for dual-fuel operation, enabling the system to cover a host of applications. Standard applications include burners for hot water boilers, steam boilers or thermo oil....

LMV51/52 – ensuring excellent performance LMV5- load control An important aspect is integration of the LMV5 burner management system into an existing PLC system. After replacement of the former plant, the LMV5 system can directly provide control of the existing PLC system. Thanks to the configuration choices (3-position, 4...20 mA, DC 0...10 V, or digital via Modbus), load control of the LMV5 adapts easily to existing plant. The internal load controller or various external load controllers can be connected – or a load controller via process automation. used for control via the internal load controller....