McDonnell & Miller 176293

750-MT-24, GuardDog Electronic Manual Reset Low Water Cutoff (24V)

• For commercial or industrial applications
• Primary or secondary control on hot water boilers
• Secondary control (manual reset models only) on steam boilers
• Manual reset models meet the requirements of ASME Standard CSD-1. If the control is in a low water condition when there is an interruption of power, the control will remain in a low water condition when power is restored. The reset button will need to be pressed when the water level is restored to a level above the probe to allow the burner to fire.
• Green LED power indicating light
• Red LED low water indicating light
• Test switch
• 20,000 ohms sensitivity