CC1N7101en
19.03.2024
Smart Infrastructure
7
101
Gas burner controls LME1…
LME2…
Burner controls for the supervision of 1- or 2-stage gas burners or gas burners of
small to medium capacity, with or without fan in intermittent operation.
The LME and this Data Sheet are intended for use by OEMs which integrate the
burner controls in their products.
Use, features
LME are used for the startup and supervision of 1- or 2-stage gas burners or gas
burners in intermittent operation. Flame supervision takes place via an ionization probe
or a QRA2 / QRA2(1) / QRA2(2) / QRA2.9 / QRA4.U / QRA10.C UV flame detector with
AGQ3.xA27 ancillary unit for forced draft gas burners, or, in the case of blue-burning
flames, with a QRC1 blue-flame detector. In terms of housing dimensions, the LME are
identical with the burner control LGB and LMG burner controls (refer to Type summary).
Applications in accordance with EN 676: Forced draft burner for gaseous fuels
Type-tested and approved in accordance with DIN EN 298
Undervoltage detection
Air pressure supervision with functional check of the air pressure switch during
startup and operation (depending on the respective type)
Electrical remote reset facility
Multicolor indication of fault status and operational status messages
Limitation of restarts
Accurate control sequence thanks to digital signal handling
Controlled intermittent operation after a maximum 24 hours of continuous operation
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