Siemens LMV27.210A2WH Burner Management System

Overview

Siemens · LMV27

LMV27.210A2WH Burner Management System

Siemens LMV27.210A2WH is an LMV27 burner management controller for electronic air-fuel ratio control, flame supervision and safe burner sequencing in single-fuel installations.

At a Glance

Brand	Siemens
Model	LMV27.210A2WH
Product Type	Electronic burner management controller
Core Function	Coordinates burner sequencing, flame supervision and electronic air-fuel ratio control for single-fuel burner applications
Application or Compatible Series	Industrial gas or light-oil burners using Siemens LMV2/LMV3 system components and AZL2 operator units

Burner Sequencing

Coordinate purge, ignition, flame establishment and controlled shutdown through the configured safety sequence.

Air-Fuel Ratio Control

Position matched actuators according to the commissioned fuel and air curves.

Service Interface

Use a compatible AZL2 unit for parameterization, status display and lockout diagnostics.

Product Overview

Siemens LMV27.210A2WH is an LMV27 burner management controller for electronic air-fuel ratio control, flame supervision and safe burner sequencing in single-fuel installations.

The controller combines burner sequencing, flame monitoring and actuator coordination in one system. The LMV27 family supports staged or modulating gas and light-oil burner arrangements. Intermittent operation supports ionization, QRA ultraviolet, QRB photoresistive and QRC blue-flame detection.

Ordering focus: confirm the complete type code, AC supply variant, fuel application, flame detector, matched actuators, AZL2 unit and approved burner parameter set.

Key Functions

Integrated Safety Control

The controller combines burner sequencing, flame monitoring and actuator coordination in one system.

Single-Fuel Applications

The LMV27 family supports staged or modulating gas and light-oil burner arrangements.

Multiple Flame Sensors

Intermittent operation supports ionization, QRA ultraviolet, QRB photoresistive and QRC blue-flame detection.

Official Specifications

Controller Family	LMV27
Supply Variant	AC 230 V class
Operating Mode	Intermittent burner operation
Fuel Configuration	Single-fuel gas or light-oil burner
Ratio Control	Electronic air-fuel ratio control
Actuator Coordination	Fuel and air actuator curve positioning
Operator Unit	AZL2 series display and operator unit
Flame Inputs	Ionization, QRA, QRB or QRC according to burner configuration
Load Demand Input	Heat-demand and modulating or multistage command support
Building Interface	Modbus integration through the specified system interface
Parameter Handling	Commissioned burner sequence and ratio curves
Safety Setup	Application-specific parameterization protected by access levels

Official source:Siemens official technical data for LMV27.210A2WH.

Frequently Asked Questions

Which burner applications suit LMV27.210A2WH?

Use it for a correctly engineered single-fuel gas or light-oil burner with matched actuators and flame supervision.

How is LMV27.210A2WH commissioned after replacement?

Restore the approved burner parameters and verify the fuel-air curves, safety times and actuator references before firing.

Which operator unit works with LMV27.210A2WH?

Use the specified AZL2 display and operator unit for setup, status and lockout diagnostics.

Can LMV27.210A2WH supervise different flame detectors?

The application can use ionization, QRA, QRB or QRC detection when the burner design and parameter set support it.

What should be checked before wiring LMV27.210A2WH?

Confirm the supply variant, terminal assignment, actuator circuits, flame detector and safety-chain devices.

How should an engineer test LMV27.210A2WH after installation?

Perform the complete burner safety and combustion commissioning procedure before returning the system to service.

Can LMV27.210A2WH exchange data with building automation?

The LMV2/3 platform supports Modbus integration through the designated communication arrangement.

Compatibility & Ordering Notes

Before ordering LMV27.210A2WH: confirm the complete type code, AC supply variant, fuel application, flame detector, matched actuators, AZL2 unit and approved burner parameter set.

Compatibility Checklist

• Match the controller to the burner fuel, ignition and valve arrangement.
• Use only approved Siemens actuators and flame detectors for the engineered application.
• Retain the validated safety times and fuel-air ratio curves.
• Verify the AZL2 operator unit and communication accessories.
• Commission combustion and all safety functions before normal operation.

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