Xylem-McDonnell & Miller 93-M Combination Low Water Cut Off & Pump Controller, 150 PSI Steam Boiler (Part# 162500)

Description

McDonnell & Miller 93-M Combination Low Water Cut Off and Pump Controller

The Xylem-McDonnell & Miller 93-M (Part Number 162500) is a professional-grade combination low water cut off and pump controller engineered specifically for steam boiler applications. Designed to protect boilers from the dangers of low water conditions, this unit integrates both pump control and safety cut-off functions into a single, reliable device — simplifying installation and reducing the number of components required on your boiler system.

Key Features

• Combination low water cut off and pump controller in one unit
• Two snap-acting, manual reset SPDT switches for positive, reliable operation
• Manual reset design ensures deliberate operator intervention before restart after a low water event
• Rated for steam boilers with a maximum operating pressure of 150 PSI
• Snap-acting switch mechanism provides fast, decisive switching action
• Dual SPDT switch configuration supports independent pump control and boiler cut-off circuits
• Durable construction built to withstand the demanding environment of steam boiler rooms
• Part Number: 162500

Application

The 93-M is designed for use on steam boilers where both low water protection and pump control are required. The manual reset feature adds an important safety layer — once a low water condition trips the control, the system will not automatically restart, requiring a technician or operator to inspect and manually reset the device before resuming operation. This helps prevent repeated dry-fire cycles and costly boiler damage.

Specifications

• Model: 93-M
• Part Number: 162500
• Application: Steam Boilers
• Maximum Pressure: 150 PSI
• Switch Type: SPDT (Single Pole Double Throw), Snap-Acting
• Number of Switches: Two (2)
• Reset Type: Manual Reset
• Brand: Xylem-McDonnell & Miller

Why Choose the McDonnell & Miller 93-M?

McDonnell & Miller, a trusted Xylem brand, has been a leading name in boiler protection and hydronic controls for decades. The 93-M delivers the dependable performance and safety assurance that HVAC professionals and building engineers rely on to keep steam heating systems operating safely and efficiently.