Replacement is recommended when the differential pressure reaches 10 psi or during annual maintenance intervals to prevent energy loss and oil carryover

Housed in a rugged 18-gauge NEMA 1 galvanized steel enclosure

How do I verify a failing element

What is the thread size for the pressure connection

McDonnell & Miller 750-T-120 Cut Off Els PW 29614 Replacement is recommended when theThe 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