LME71.112A1PKG-PRG5 Siemens Flame Safeguard

Overview

The Siemens LME71.112A1PKG-PRG5 is a preprogrammed flame safeguard assembly designed for the supervision of 1-stage or 2-stage gas forced draft burners. This microprocessor-based burner control unit provides a complete safety solution by integrating the LME71.000A1 base unit with a PME71.112A1 program module and a connector plug set. Engineered for intermittent operation, this specific package is configured as a “basic” safeguard without a purge cycle, ensuring the safety shutoff valves are energized only when a flame is reliably detected via a UV scanner or ionization flame rod.

Features

• Comprehensive safety monitoring for industrial and commercial burners
• Preassembled and preprogrammed package including base unit, program module, and AGG3.710 plug kit
• Integrated multicolor LED signal lamp for status, program sequence, and error notifications
• Proof of Closure (POC) input for monitoring gas valve position to ensure 100% closure
• Electrical remote lockout reset facility for convenient system management
• Digital signal handling for high-precision control sequences
• Support for UV scanner or flame rod sensor inputs
• Compatible with AZL23 remote display units for enhanced parameter adjustment and diagnostics

Specifications

• Model: LME71.112A1PKG-PRG5
• Mains Voltage: AC 120 V (50/60 Hz)
• Power Consumption: Approximately 12 VA
• Safety Class: I
• Protection Rating: IP40 (when mounted correctly)
• Operating Temperature: -20 C to +60 C
• Weight: Approximately 1.2 lbs to 2.0 lbs depending on assembly
• Program Module: PME71.112A1 (Basic unit without purge)
• Approvals: UL, FM, CSA, and CE

Applications

• Supervision of multistage or modulating forced draft gas burners
• Ideal for atmospheric burners of medium to high capacity
• Industrial thermal process applications requiring linkageless burner control
• HVAC and boiler systems where proof of closure and remote reset capabilities are required
• Systems using QRA series UV detectors or ionization probes for flame detection