Description
The Xylem-McDonnell & Miller RB-24SE-L is a low water cut-off (LWCO) control designed to protect steam boilers from potentially hazardous low-water conditions. This unit includes an integrated burner control harness, simplifying installation and ensuring reliable electrical connectivity between the LWCO and the burner control system.
Product Overview
McDonnell & Miller is a trusted name in hydronic and steam boiler safety controls, and the RB-24SE-L continues that legacy with dependable float-operated low water cut-off technology. When water drops below the safe operating level, the control interrupts the burner circuit to prevent dry-firing and boiler damage. The included burner control harness streamlines wiring and reduces installation time.
Key Features
- Low water cut-off (LWCO) protection for steam boiler systems
- Includes burner control harness for simplified wiring and integration
- Float-operated switching mechanism for accurate water level detection
- Interrupts burner operation upon detection of unsafe low-water conditions
- Designed for reliable, long-term performance in steam heating applications
- Built to McDonnell & Miller’s industry-leading quality standards
Applications
- Residential and light commercial steam boiler systems
- Replacement or upgrade of existing low water cut-off controls
- Systems requiring integrated burner control harness connectivity
Why Choose McDonnell & Miller
For decades, McDonnell & Miller — now part of the Xylem family — has been the go-to brand for boiler safety controls. The RB-24SE-L delivers the proven protection and ease of installation that HVAC professionals and boiler technicians rely on to keep heating systems operating safely and efficiently.
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