Xylem 369 McDonnell & Miller Low Water Cutoff Steam Boiler Control

The Xylem McDonnell & Miller 369 is a float-operated mechanical low water cutoff designed to protect steam boilers from hazardous low water conditions. This safety control automatically interrupts electrical current to the firing device when water levels drop below safe operating parameters, preventing potential boiler damage or failure.

Key Features:

• 2-1/2" NPT side tapping mounting for easy installation
• 1-3/4" insertion length ideal for residential and commercial applications
• Dual precision 120V switches for low water cutoff and alarm or electric water feeder operation
• Packless bellows design eliminates maintenance concerns
• Adjustable BX outlet for simplified installation
• Maximum operating pressure: 20 PSI
• Auto-reset mechanical operation for reliable protection

Part number 155300. McDonnell & Miller, a Xylem brand, is recognized as a leader in boiler controls and safety devices for steam and hot water systems in industrial, commercial, and residential applications. Suitable for boilers of any steaming capacity within the pressure rating.