LME71.111A1PKG-PRG60 Siemens Flame Safeguard

Overview

The Siemens LME71.111A1PKG-PRG60 is a comprehensive, preprogrammed flame safeguard assembly designed for the supervision and management of 1-stage or 2-stage gas or oil burners. This package includes the LME71.000A1 basic unit, the PME71.111A1 program module, and a complete AGG3.710 connector plug set for streamlined installation. Engineered for intermittent operation, this microprocessor-based controller ensures safe burner startup and continuous monitoring by managing safety shutoff valves and monitoring flame signals via ionization probes or UV detectors.

Features

• Preprogrammed with specific safety parameters to fit industrial and commercial burner applications
• Integrated 3×7-segment display providing real-time service, error, and status information
• Multicolor LED signal lamp for immediate visual diagnostics of program sequence and fault status
• Advanced digital signal handling for high-precision control and repeatable timing
• Built-in undervoltage detection and electrical remote reset capabilities
• Comprehensive air pressure supervision with integrated function checks during startup
• Proof of Closure (POC) input for enhanced safety monitoring of fuel valves

Specifications

• Model: LME71.111A1PKG-PRG60
• Operating Voltage: 110V AC – 120V AC (50/60 Hz)
• Power Consumption: Approximately 12 VA
• Degree of Protection: IP40 (when mounted)
• Operating Temperature: -20 C to +60 C
• Designed Lifetime: 250,000 burner startup cycles (approx. 10 years)
• Compatibility: Ionization probes, QRA2/QRA4/QRA10 UV detectors, and QRB photo resistive detectors
• Approvals: UL, FM, and CSA certified

Applications

• Supervision of 1-stage or 2-stage forced draft gas or oil burners
• Management of atmospheric gas burners in industrial and commercial heating systems
• Control of burners with mechanical or pneumatic fuel-air ratio control
• Suitable for systems requiring programmable purge cycles and pilot/main ignition timing
• Integration into new burner builds or as a replacement for legacy Siemens flame safeguard units