• Quick hook-up fittings provided
• Lever-operated, full port ball valve for easy blow down
• Adjustable Bx outlet for easy installation
• Dual precision switches for dependable operation of cut-off, alarm or electric water feeder

McDonnell & Miller B103-1

McDonnell & Miller B120

• Field-adjustable dwell-feed cycles
• Multi color LED status indicator
• Manual feed button
• Hard-stop limit to minimize chances of flooding the boiler
• Compatible with all electronic and mechanical low water cut-off
• Includes adapters for connection to 1/2" copper tubing
• Removable strainer ,
  

  McDonnell & Miller B112-6

• Eliminates necessity to manually add water to the boiler
• Can be used with mechanical or electronic low water cut-off controls
• Quick-change replaceable cartridge valve and strainer
• Manual feed butTon
• 40 VA transformer

McDonnell & Miller B112-8

• Provides step-by-step, diagrammed instructions for fast, easy installation and wiring
• Burner circuit locks-out if water remains below probe for 30 sec
• Burner circuit test butTon allows for testing the control without lowering the water level and indicator lights for easy troubleshooting
• SPDT switch contact

Hydrolevel B112-3