Siemens LMV52.200B2 Burner Management System

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What's Included

• 1 × Siemens LMV52.200B2 Burner Management System (Basic Unit)

Note: AZL52 display, PLL52 O₂ module, AGG5.2 transformer, actuators, and flame detectors are sold separately.

Why Buy From Us?

• In Stock – Ready to ship immediately

• Genuine Siemens Product – Factory original component

• Warranty Included – Purchase with confidence

• Technical Support – Combustion system compatibility assistance available

Frequently Asked Questions (FAQ)

Q1: What is the Siemens LMV52.200B2?

It is a Burner Management System for forced draft burners of medium to high capacity. It integrates burner control, fuel/air ratio control, PID load control, VSD control, and O₂ trim control into a single microprocessor-based unit .

Q2: What is the difference between LMV52 and LMV51?

The LMV52 is the advanced model with O₂ trim control, VSD (Variable Speed Drive) control, and support for up to 6 actuators. The LMV51 supports only 4 actuators and lacks integrated O₂ trim and VSD control .

Q3: What is the difference between LMV52.200B2 and LMV52.400B2?

The LMV52.400B2 features enhanced O₂ trim specifically designed for low-NOx premix burners and applications with high flue gas recirculation rates (>25%). The LMV52.200B2 is the standard O₂ trim model for conventional forced draft burners .

Q4: Does this unit require an external display?

Yes. The LMV52.200B2 requires an AZL52 display and operating unit (or PC with ACS450 software) for commissioning, parameter setting, and diagnostics. The display is not included and must be ordered separately .

Q5: What flame detectors are compatible?

The LMV52 supports ionization probes and QRI infrared detectors for continuous operation, and QRB photoresistive detectors for intermittent operation. QRA UV detectors are also compatible with the appropriate AGQ accessory .

Q6: What is the O₂ trim control used for?

O₂ trim control continuously measures residual oxygen in the flue gas and adjusts the air-fuel ratio to maintain optimal combustion efficiency. This compensates for variations in fuel quality, temperature, and draft, reducing excess air and improving fuel economy .

Q7: Does the LMV52.200B2 support Modbus communication?

Yes. The system supports Modbus RTU for integration with building automation systems (BACS) and higher-level controllers .

Q8: What is the designed lifetime of this unit?

The designed lifetime is 250,000 burner startup cycles, equivalent to approximately 10 years of normal heating operation. After reaching this threshold, the unit should be replaced by authorized personnel .

Q9: What safety certification does this unit carry?

The LMV52.200B2 is certified for functional safety up to SIL 3 according to IEC 61508. It complies with DIN EN 298, DIN EN 1643, and DIN EN 13611 standards .

Q10: What should I verify before ordering?

Always verify the exact part number (LMV52.200B2 vs. B1 or 400B2), confirm your burner configuration (number of actuators required, O₂ trim requirement, VSD requirement), and ensure you have the necessary accessories (AZL52 display, PLL52 O₂ module, AGG5.2 transformer).