Description
The Xylem-McDonnell & Miller Model 193 (Part Number 163400) is a professional-grade combination low water cut off and pump controller engineered specifically for steam boiler applications. Trusted by HVAC professionals for decades, the McDonnell & Miller 193 delivers reliable boiler protection and pump management in a single, durable unit — simplifying installation and reducing the number of components required on the job.
How It Works
The Model 193 continuously monitors water level inside the boiler. When water drops below the safe operating threshold, the unit automatically cuts off the burner to prevent dry-firing and costly boiler damage. Simultaneously, the integrated pump controller function manages the feed pump to maintain proper water levels, helping to keep the system operating efficiently and safely.
Key Features
- Combination low water cut off and pump controller in one unit
- Two snap-acting SPDT (Single-Pole Double-Throw) switches for reliable, positive switching action
- Rated for steam boilers with a maximum working pressure of 150 PSI
- Designed for dependable, long-service-life performance in demanding steam heating systems
- Simplifies installation by combining two critical boiler safety functions into a single device
- Manufactured by Xylem-McDonnell & Miller, a trusted name in boiler controls and hydronic accessories
Application
- Steam boiler systems requiring low water cut off protection
- Systems requiring integrated pump control for automatic water feed management
- Commercial and residential steam heating applications up to 150 PSI
Product Details
- Brand: Xylem-McDonnell & Miller
- Model: 193
- Part Number: 163400
- Switch Type: Two Snap-Acting SPDT
- Maximum Pressure: 150 PSI
- Application: Steam Boilers
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