McDonnell & Miller 750-T-120 Cut Off Freon Safety First: Inherently energy-limiting design

Safety First: Inherently energy-limiting design complies with Class 2 requirements

The white rectangular housing includes a large

ASME Section IV Certified: Ensures compliance with local building codes and rigorous safety standards for hot water heating boilers

ensuring the adapter sits flush with the Modutrol motor shaft is essential for maintaining torque transfer and preventing slippage under maximum load conditions

You must retain the existing hardware or purchase Reznor 97572 separately

McDonnell & Miller 750-T-120 Cut Off Freon Safety First: Inherently energy-limiting designThe McDonnell & Miller 750 T 120 (Part Number 176206) is a heavy duty 120Vac electronic low water cut off designed for high reliability sensing in hot water boilers and steam boiler secondary protection. Engineered with a 20,000 ohm sensitivity, this GuardDog series control utilizes a probe type sensor to monitor water levels, effectively preventing "dry fire" conditions that cause catastrophic vessel failure. The automatic reset configuration ensures