LME71.901A1PKG-PRG6 Siemens Flame Safeguard

Overview

The Siemens LME71.901A1PKG-PRG6 is a high-performance, microprocessor-based flame safeguard control package designed for the supervision of multistage or modulating forced draft gas and oil burners. This preassembled kit simplifies installation by integrating the LME71.000A1 basic burner control unit with a preprogrammed PME71.901A1 program module and a complete AGG3.710 connector plug set. It provides critical safety functions, including burner startup management, safety shutoff valve control, and continuous flame monitoring via UV scanner or flame rod to prevent hazardous conditions in industrial and commercial combustion systems.

Features

• Comprehensive flame supervision for multistage or modulating gas/oil burners
• Preassembled package includes the basic unit, program module, and connector plugs for streamlined setup
• Integrated PWM fan motor control for burners utilizing pneumatic ratio control
• Multicolor LED signal lamp provides clear indication of operating status, program sequences, and error notifications
• Digital signal handling ensures highly accurate control sequences and reliable timing
• Electrical remote lockout reset facility for convenient system management
• Built-in display interface supports service, error, and status information (when used with 7-segment display or AZL2 unit)
• Integrated valve proving and air pressure supervision with functional checks during startup and operation

Specifications

• Model: LME71.901A1PKG-PRG6
• Operating Voltage: AC 120 V (50/60 Hz)
• Components Included: LME71.000A1 basic unit, PME71.901A1 program module, AGG3.710 plug set
• Safety Approvals: UL, FM, and CSA certified
• Flame Detection: Supports UV scanners (e.g., QRA series) or flame rods
• Power Consumption: Designed for standard 110V/120V power supplies
• Protection Class: Engineered for industrial environments with robust digital signal processing
• Weight: Approximately 1.2 lbs to 5 lbs (depending on packaging and shipping configuration)

Applications

• Supervision of medium to large capacity atmospheric burners and forced draft burners
• Managing complex fuel-air ratio control systems in industrial boilers and thermal processing plants
• Systems requiring integrated PWM fan control and automated valve proving sequences
• Commercial HVAC systems and industrial burner controls requiring intermittent operation (at least one controlled shutdown every 24 hours)
• Retrofitting existing burner controls with a modern, microprocessor-based safety relay for enhanced diagnostic capabilities