McDonnell & Miller 169 Boiler Low Water Cut-Off

The McDonnell & Miller 169 Boiler Low Water Cut-Off protects steam and water boiler systems with a built-in, mechanical-actuation design. This reliable low-water cutoff is crafted for residential and industrial boiler installations, featuring a 2-1/2 inch threaded port for secure mounting and compatibility with a range of configurations.

Engineered to handle both steam and water media, it supports pressures up to 20 PSI (steam) and operates on 120/240 VAC. Full-load currents are 7.4 A at 120 V and 3.7 A at 240 V, with locked-rotor values of 44.4 A at 120 V and 22.2 A at 240 V. The unit offers a practical 3-1/8 inch insertion length and overall dimensions of 9-1/2 inches by 4-1/8 inches, ensuring versatile integration into many boiler systems.

• Built-in, mechanical actuation for dependable shutdown
• 2-1/2 inch threaded port for secure installation
• 3-1/8 inch insertion length
• Suitable for steam and water media
• UL, CSA, and FM listed for safety
• Residential and industrial boiler applications
• Voltage options: 120 VAC / 240 VAC with specified current ratings