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Building Technologies Division Basic Documentation LME7... CC1P7105en
Infrastructure & Cities Sector 2 System makeup/function description 29.11.2011
2 System makeup/function description
The LME7... is a microprocessor-based burner control with matching system
components for the control and supervision of forced draft burners of medium to high
capacity.
LME7… are used for the startup and supervision of 1- or 2-stage forced draft burners in
intermittent operation. The flame is supervised with an ionization probe, optionally with
flame detector QRA2..., QRA4.U or QRA10....
- Gas burner controls to EN 298 : 2003
- Oil burner controls to EN 230 : 2005
- For forced draft gas burners to EN 676
- For forced draft oil burners to EN 267
Integrated in the LME7... basic unit are:
Burner control
BCI for connection a display or PC
Only LME72.../LME73...: Control for one actuator
Lockout reset button (info button)
3 multicolor signal lamp LED for operations and fault notifications
Optional: Analog inputs for load controller DC 0...10 V, DC 0/4...20 mA, 0...135 Ω
3 x 7-segment display for service, fault and operating state information
Interface for program module
Figure 2: Example: Modulating gas burner
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