LFL1.333-110V Siemens Gas Burner Control
$1,216.80
The Siemens LFL1.333-110V is a high-performance, electro-mechanical gas burner control designed for the supervision and sequencing of forced draft burners. Specifically engineered for medium to high capacity applications, this unit supports gas, oil, or dual-fuel systems. It is optimized for multistage or modulating burners in intermittent operation, requiring a safety shutdown at least once every 24 hours.
Overview
The Siemens LFL1.333-110V is a high-performance, electro-mechanical gas burner control designed for the supervision and sequencing of forced draft burners. Specifically engineered for medium to high capacity applications, this unit supports gas, oil, or dual-fuel systems. It is optimized for multistage or modulating burners in intermittent operation, requiring a safety shutdown at least once every 24 hours. The controller integrates a flame amplifier, purge timer, and sequencer into a single, compact plug-in housing, ensuring reliable safety functions for industrial and commercial burner applications.
Features
- Comprehensive burner sequencing and automatic ignition control
- Continuous flame monitoring using UV detectors (QRA series) or ionization probes
- Integrated self-checking mechanism, including a UV sensor functional test
- Visual sequence indication via a built-in dial for real-time status and fault diagnosis
- Checked air damper control and proven air pressure switch monitoring
- Safety interlocks for high fire purge, low fire ignition, and pre-ignition
- Lockout alarm terminal with local and optional remote reset capabilities
- Durable, shock-resistant and heat-resistant plastic housing with a protective viewing window
Specifications
- Model: LFL1.333-110V
- Supply Voltage: AC 100-110 V (+10% / -15%) at 50/60 Hz
- Prepurge Time (t1): 31 seconds
- Safety Time (TSA): 3 seconds
- Pre-ignition Time (t3): 6 seconds
- Post-purge Time (t6): 18 seconds
- Power Consumption: Approximately 3.5 VA
- Protection Rating: Designed for control panel mounting (typically IP40 or higher depending on base)
- Weight: 2.2 lbs (1.0 kg)
- Operating Temperature: -20 C to +60 C
Applications
- Supervision of forced draft gas, oil, and dual-fuel burners
- Multistage or modulating burners in industrial furnaces and commercial boilers
- Stationary air heaters (WLE) conforming to DIN 4794
- Direct main burner ignition or interrupted pilot construction systems
- Integration into burner management systems for industrial process heating and HVAC plants
| Weight | 7 lbs |
|---|---|
| Dimensions | 2 × 2 × 2 in |
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