McDonnell & Miller 94 Boiler Low Water Cut-Off/Pump Controller

The McDonnell & Miller 94 Boiler Low Water Cut-Off/Pump Controller is a rugged boiler safety device designed for commercial and industrial systems. This dual-function unit combines a low-water cut-off with a pump controller to protect equipment and optimize boiler operation. Featuring mechanical actuation and 1-1/4 inch threaded port connections, it installs easily into standard piping configurations.

Engineered for reliability in demanding environments, the unit delivers robust specs: 12-15/16 inch length, 18-13/16 inch height, a 250 PSI pressure rating, and compatibility with steam and water media. It supports 120/240 V AC input up to 345 VA to fit diverse facility electrical needs. The assembly includes a Series 5 switch and a 10-bolt flange for solid mounting, and it meets UL, CSA, and FM safety standards for commercial and industrial boiler service.

• Primary function: Low-water cutoff with integrated pump controller
• Port connections: 1-1/4" threaded x 1-1/4" threaded
• Electrical rating: 120/240 V AC, up to 345 VA
• Media handled: Steam and water
• Construction: Mechanical actuation, Series 5 switch, 10-bolt flange
• Compliance: UL, CSA, FM approved