For proper operation and to ensure the 4" probe is fully submerged in the hottest water at the top of the tank

it provides responsive automation for air handling units and hydronic systems

fitting the same footprint and mounting configurations

including models like the 52MQAU09301AA and 52MQBU12301AA

which is essential for interlocking the valve with a boiler

Browning BX120 Belt 321142-301 For proper operation and toThe Browning BX120 Belt is a heavy duty cogged V belt engineered for demanding HVACR applications requiring high torque transmission and superior heat dissipation. Featuring a 123 inch outside diameter and a Gripnotch profile, this Type BX belt utilizes a precision molded notch design that increases flexibility, allowing it to operate efficiently on smaller diameter sheaves while reducing bending stress. The EPDM construction ensures resistance to oil