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The LME 75 is a microprocessor-based unit with matching system components for controlling and supervision of forced draft burners of medium to large capacity.
The LME 75 and this data sheet are intended for original equipment manufacturers (OEMs) using the LME75 / LME76 in or on their products.

The LME76 is a future development unit with multi burner applications.

The LME75/LME76 is responsible for commissioning and supervising 1-stage or 2-stage forced draft burners or forced draft burners with pneumatic/mechanical ratio control modulation in continuous operation.
Depending on the burner control, flame supervision takes place during continuous
operation with the following detectors or safeguard devices:

Variants:

• LME75.000A1 – AC 120 V
• LME75.811A1PKG – AC 120 V w/ Program Module: PME75.811A1 and Plug sets
• LME75.812A1PKG – AC 120 V w/ Program Module: PME75.812A1 and Plug sets

Resources:

• LME7 Technical Literature.
• LME Product Overview
• LME 75/76 Bulletin
• LME7 Flame Safeguard Training / Tutorial Videos

• PME75.811Ax Technical Literature
• PME75.812Ax Technical Literature

LME7 Flame Safeguard Tutorials:

View all LME7 Flame Safeguard Videos here

Also See from Siemens LME Series:

Burner Controls Program Modules Actuators

Flame Sensors Other Accessories

Burner Controls

• LME1 Gas Burner Control
• LME2 Gas Burner Control
• LME4 Gas Burner Control
• LME71 Burner Control
• LME73 Burner Control
• LME75/76 Burner Control

Program Modules

• PME71 Program Module
• PME73 Program Module

Actuators

• SQN7 Reversing Actuator
• SQM10 / 11 Actuator
• SQM20 / 21 Actuator
• SQM40 / 41 Actuator
• SQM5 Reversing Actuator
• VA Valve Actuator Assemblies

Flame / UV Sensors

• QRA2 Flame Detector
• QRA4 Flame Scanner
• QRA10 Flame Detector
• QRB Photo Resistive Flame Detector

Self Check Scanners for LME75

• QRA7 Flame Detector
• AGM23U Cable for QRA7 Scanner
• AGG16.U Mounting Adaptor for QRA7 Scanner
• QRI2 Infared Flame Detector
• AGG2.120 Connection Adaptor for QRI Scanner
• AGG2.110 Mounting Kit for QRI Scanner

Other Accessories

Display and Operating Units

• AZL2 Display Units

Communication and service tools

• AGV50 Signal Cable
• OCI417.10 Protocol Interface
• OCI410 Interface for PC

Enlosures

• LME7 Enclosure Kit