Siemens LME7 Flame Safeguard

Siemens LME7 Flame Safeguard

  • Types: LME71, LME73 and LME75
  • UV scanner and flame rod sensor inputs
  • Programmable purge times, safety times, and pilot operation
  • Integral LED display for easy diagnostics
  • Globally approved – UL, FM, CSA, and CE

Description

The Siemens LME7… Flame Safeguard sets a new standard for flexible, cost effective burner supervision. Ease of installation, programming and commissioning are incorporated into a reliable, field proven control.

Three LME7 Types:

  • LME71 Flame safeguard
  • LME73 Flame safeguard with actuator control
  • LME75 Flame safeguard with self-check scanner capability

The burner control LME7… is a microprocessor-based unit which has matching system components. In summary, these components control and give supervision of forced draft burners of medium to high capacity.

More Features:

In addition, the Siemens LME7 Flame Safeguard has a programmable actuator positions for purge, ignition, and low fire. For instance, it has adjustable time overlap of spark ignition transformer and pilot valve. LME7 has an adjustable time overlap of pilot and main gas valves. In addition, it has programming via AZL display, Proof of Closure switch monitoring and optional gas valve proving function. In conclusion, it has password protected access to OEM parameters.

Application:

LME7 are used for the startup and supervision of multistage or modulating forced draft burners and atmospheric gas burners in intermittent operation. The fuel-air ratio can be set either via an air damper actuator which acts on mechanical or pneumatic ratio control.  Also, it can be acting via pulse width modulated fans and pneumatic ratio control.

SIEMENS LME7… FLAME SAFEGUARD UNITS:

US/Canada (UL Listed and CSA Certified)
LME71.000A1 – Flame safeguard base unit, LME7, 110 V
LME73.000A1 – Flame safeguard base unit including actuator sequencing, LME7, 110 V
LME75.000A1 – Flame safeguard base unit for continuous operation, 110V, UL, CE Approvals
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LME71.111A1PKG – LME71.000A1 assembled with PME71.111A1 and plug set kit
LME75.231A1PKG – LME75.000A1 with PME75.231A1 and Plug Kit
LME75.811A1PKG – LME75.000A1 with PME75.811A1 and Plug Kit
LME75.812A1PKG – LME75.000A1 with PME75.812A1 and Plug Kit
LME75.831A1PKG – LME75.000A1 with PME75.831A1 and Plug Kit

Metric (CE and EAC Approvals)
LME71.000A2 – Flame safeguard base unit, LME7, 220 V
LME73.000A2 – Flame safeguard base unit including actuator sequencing, LME7, 220 V

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Accessory Parts:

Connectors & Cables
AGG3.710 – Connector plug set for LME7… Single pack
TDC COMBO – Cable and adapter for LME7
AGM23U – Wire harness for QRA75, UL
AGG16.U – Metal block adapter for QRA75
AGA5-05M – LME7 Modbus module programming cable

OCI417.10 – LME7 Modbus Module (click here for detailed information)
Accessories: AGA15-24 – LME7 24V Power supply for OCI417.10

Programming Display & Operating
AZL23.00A9 – Programming display and operating unit for LME7 control

Flame Detectors
QRA10M.C – High Sensitivity UV Detector with aluminum housing, 1″ threaded mount for LME7
QRA4.U – UV Detector, 3/4″ NPT forward viewing application for LME7
QRA75.A17 – Self check scanner, 100V, UL

Program Modules

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(For gas burners, adjustable timing, POC contact)

This is a list of some PME71 Modules:

PME71.111A1 – Programming module PME71
PME71.401A1 – Direct spark programming module for LME71, 110V
PME71.401A2 – Direct spark programming module for LME71 220V
PME71.402A1 – Pilot programming module for LME71, 110V
PME71.402A2 – Pilot programming module for LME71 220V
PME71.901A1 – Programming module with valve proving for LME71, 110V
PME71.901A2 – Programming module with valve proving for LME71 220V

This is a list of PME73 Modules:

PME73.810A1 – Direct spark for control of 3-step actuator, programming module for LME73, 110 V
PME73.810A2 – Direct spark for control of 3-step actuator, programming module for LME73, 220V
PME73.820A1 – Direct spark for control of actuator without potentiometer, programming module for LME73, 110 V
PME73.820A2 – Direct spark for control of actuator without potentiometer, programming module for LME73, 220V
PME73.830A1 – Pilot programming module for control of 3-step actuator for LME73, 110 V
PME73.830A2 – Pilot programming module for control of 3-step actuator for LME73, 220V
PME73.840A1 – Pilot programming module for control of actuator without potentiometer for LME73, 110 V
PME73.840A2 – Pilot programming module for control of actuator without potentiometer for LME73, 220V

This is a list of PME75 Modules:

PME75.231A1 – Programming module for LME75, 110V
PME75.811A1 – Programming module for LME75, 110V
PME75.812A1 – Programming module for LME75, 110V
PME75.831A1 – Programming module for LME75, 110V

Ask us for engineering or product support.
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Technical Documentation

Siemens LME7 Flame Safeguard

PDF Downloads:

LMV7 Brochure

LMV7… Selection Guide

LMV7… Tech Information

LME7 Multi-Burner Application Video

LME7 Overview Video

LME7 Troubleshooting Video