![McDonnell & Miller 767 Boiler Low Water Cut-Off — New England Supply House spec card [NESH-SPEC-CARD-V2]](http://newenglandsupplyhouse.com/cdn/shop/files/spec-9032863154398.png?v=1782845240&width=1445)
The McDonnell & Miller 767 Boiler Low Water Cut-Off delivers essential boiler protection by monitoring water levels in steam systems. This float-type, lever/mechanical actuation device provides reliable shut-off to prevent damage from low-water conditions in residential and commercial boilers.
With a 2-1/2 inch threaded port connection and a compact 9-11/16 inch length, it fits a wide range of boiler configurations. It uses a float-type, lever/mechanical actuation to reliably shut off the boiler when water levels fall below the set point. It supports 120/240 Volt AC power and is rated for steam at up to 20 PSI, handling both steam and water media. The unit is UL, CSA, and FM listed, ensuring industry-standard safety and compatibility.
- Type: Float-type, lever/mechanical actuation
- Port Connection: 2-1/2 inch threaded
- Length: 9-11/16 inch
- Electrical Ratings: 7.4 A @ 120V / 3.7 A @ 240V (full load); 44.4 A @ 120V / 22.2 A @ 240V (locked rotor)
- Input Supply: 120/240V AC, 125V Amp
- Pressure Rating: 20 PSI (Steam)
- Media Handled: Steam and water
- Applications: Residential and commercial
- Standards: UL, CSA, FM listed
Specifications
| Type | Float |
|---|---|
| Pressure Rating | 20 PSI (Steam) |
| Input Supply | 120/240 Volt AC 125 Volt Amp |
| Current Rating | 7.4 Amp at 120 Volt AC/3.7 Amp at 240 Volt AC (Full Load), 44.4 Amp at 120 Volt AC/22.2 Amp at 240 Volt AC (Locked Rotor) |
| Application | Residential, Commercial |
| Port Connection | 2-1/2 Inch Threaded |
| Standards | UL, CSA, FM |
| Media | Steam, Water |
| Actuation Type | Lever/Mechanical |