LME71.111A1PKG-PRG16 Siemens Flame Safeguard

Overview

The Siemens LME71.111A1PKG-PRG16 is a preprogrammed, high-precision flame safeguard assembly designed for the startup and supervision of multistage or modulating forced draft burners. This 110V AC burner control unit is a critical safety component in industrial thermal processes, ensuring that safety shutoff valves are energized only when a flame is properly detected. The “PKG” designation indicates a comprehensive package that includes the LME71.000A1 basic unit, a PME71.111A1 program module, and a connector plug kit, facilitating a streamlined installation process for gas or oil burner applications.

Features

• Comprehensive safety supervision for burner startup and continuous operation
• Integrated proof of closure (POC) input to monitor gas valve position for enhanced safety
• Programmable purge timing to clear combustion chambers before ignition
• Multicolor LED signal lamp provides clear visual status for operation, recycle, and fault notifications
• Accurate digital signal handling ensures precise control sequences and repeatability
• Electrical remote lockout reset facility for convenient system management
• Compatible with multiple flame detection methods, including UV scanners and flame rods
• Air pressure supervision with a functional check of the air pressure switch during startup

Specifications

• Model: LME71.111A1PKG-PRG16
• Operating Voltage: 120 V AC (50/60 Hz)
• Components Included: LME71.000A1 base unit, PME71.111A1 program module, and AGG3.710 plug set
• Power Consumption: Approximately 12 VA
• Protection Rating: IP40 (when mounted correctly)
• Weight: Approximately 1.2 lbs to 1.7 lbs
• Flame Supervision: Ionization probe or UV flame detector (e.g., QRA series)
• Operating Temperature: -20 C to +60 C

Applications

• Supervision of multistage or modulating forced draft gas or oil burners
• Atmospheric gas burners of medium to large capacity
• Industrial thermal process plants and high-demand commercial boiler systems
• HVAC systems requiring linkageless or mechanical fuel-air ratio control
• Applications needing programmable safety parameters and remote status monitoring via Modbus or AZL2 display units