Siemens LME11.330A2 User Manual

CC1N7101en
27.11.2008
Building Technologies
HVAC Products
7
101
Burner Controls LME...
Burner controls for the supervision of 1- or 2-stage gas or gas / oil burners of
small to medium capacity, operation, with or without fan in intermittent.
The LME… and this Data Sheet are intended for use by OEMs which integrate the
burner controls in their products.
Use, features
LME… burner controls are used for the startup and supervision of 1- or 2-stage gas or
gas / oil burners in intermittent operation. The flame is supervised by an ionization
probe or flame detector QRA… with ancillary unit AGQ3…A27 for gas / oil forced draft
burners or blue–burning flames with blue-flame detectors QRC...
In terms of housing dimensions, the LME... are identical with the LGB… and LMG…
burner controls (refer to «Type summary»).
- For gas burners with or without fan to EN 298: 2003
- For gas burners with fans conforming to EN 676
- For oil burners to EN 230: 2005
- Undervoltage detection
- Air pressure supervision with functional check of the air pressure switch during
startup and operation
- Electrical remote reset facility
- Multicolor indication of fault status and operational status messages
- Limitation of the number of repetitions
- Accurate control sequence thanks to digital signal handling
- Controlled intermittent operation after 24 hours of continuous operation
Supplementary documentation
Product Range Overview LME…............................................................................ Q7101
Use
Features

Siemens LME11.330A2 Specifications

General

Frequency	50/60 Hz
Number of Inputs	4
Number of Outputs	3
Mounting Type	DIN rail
Approval	CE, UL
Protection class	IP40
Application	Oil or Gas Burners
Safety Time	3 seconds

Summary

Burner Controls Overview

Use and Features

Important Notes and Guidelines

General Warning Notes

Essential safety warnings for installation, operation, and maintenance to prevent injury or damage.

Installation and Connection Procedures

Installation Notes

Instructions for proper cable routing, earthing, and avoiding conductor mix-ups.

Flame Detector Electrical Connection

Commissioning and Safety Checks

Safety Checks During Commissioning

Procedure for safety checks during burner startup, simulated flame loss, and air pressure failure.

Technical Data and Specifications

General Unit Data

Specifications including mains voltage, frequency, power consumption, weight, and safety class.

Environmental Conditions

Flame Supervision Technical Details

Ionization Probe Flame Supervision

Technical parameters for ionization probe flame detection, including voltage and current thresholds.

UV Detector and Ancillary Unit Data

UV Detector QRA Flame Supervision

Specifications for UV detector QRA with AGQ3...A27, including detector voltage and current.

AGQ3...A27 Ancillary Unit

Flame Supervision and Operational Functions

Blue Flame QRC Detector Supervision

Parameters for QRC blue-flame detectors and LED operational status indications.

Burner Startup and Operation Functions

Fault Handling and Reset Procedures

Control Sequence in Event of Fault

Lists fault causes like mains failure, undervoltage, and loss of flame with corresponding responses.

Operation, Indication, and Diagnostics

Lockout Reset Button and Multicolor LED

Functionality of the lockout reset button and the multicolor signal lamp for diagnostics.

Operational Status Color Codes

Table detailing the color codes of the signal lamp for various operational states.

Fault Cause Diagnostics

Activating Diagnostics of Fault Cause

Procedure to activate visual and interface diagnostics using the lockout reset button.

Error Code Table for Faults

Comprehensive Document Legend

Component and Parameter Definitions