this is a fixed auto limit switch

preventing heat exchanger damage and hazardous conditions by interrupting the electrical circuit if internal plenum temperatures exceed safe operating limits

Replacing a bulging unit immediately is critical to prevent compressor motor burnout

Simple Installation: Tool-free

Schneider Electric (Erie) VM3222 Valve Body Els PW 17895 this is a fixed autoThe Schneider Electric Erie VM3222 Valve Body is a robust 1 2 inch NPT three way modulating zone valve engineered specifically for high precision control in closed hydronic systems. Designed for veterans in the field, this brass 3 way mixing valve features a 2. 0 Cv rating and is ideally suited for fan coil units, VAV reheat, and baseboard applications. The VM3222 utilizes PopTop technology, allowing for tool free actuator removal and simplified field