Description
Product Overview
The Xylem-McDonnell & Miller 7-BM (Part Number 110900) is a potentiometer proportional manual reset low water cut off switch engineered for dependable boiler protection in hydronic and steam heating systems. Designed and backed by the trusted McDonnell & Miller brand — a leader in boiler safety controls for over a century — this unit provides precise water level sensing and automatic shutdown to prevent dangerous dry-fire conditions.
Key Features
- Potentiometer proportional sensing for accurate, continuous water level monitoring
- Manual reset operation ensures the system is inspected before returning to service after a low water event
- Low water cut off (LWCO) function protects boilers from damage caused by insufficient water levels
- Rugged construction built to withstand the demanding conditions of commercial and residential boiler rooms
- Reliable McDonnell & Miller design with a long-standing reputation for boiler safety and control
- Part Number 110900 for easy cross-referencing and ordering
Application
The 7-BM is ideal for use on hot water and steam boilers where continuous water level monitoring and manual reset safety control are required. The potentiometer proportional output makes it well-suited for integration with building automation and boiler management systems that require a variable signal corresponding to water level.
Why Choose the McDonnell & Miller 7-BM?
- Trusted McDonnell & Miller engineering for proven boiler safety
- Manual reset design promotes safe system inspection after low water events
- Proportional potentiometer output supports advanced control integration
- Helps protect boiler investment and ensures code-compliant operation
- Backed by Xylem’s global network of support and service
Specifications
- Brand: Xylem-McDonnell & Miller
- Model: 7-BM
- Part Number: 110900
- Type: Potentiometer Proportional Low Water Cut Off Switch
- Reset Type: Manual Reset
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