chemically resistant material designed for dimensional stability under repeated heating cycles

Ensuring your system operates above this threshold is critical to prevent valve chatter

Engineered for compatibility with specific Goodman and Amana gas furnaces

The "3CH" designation indicates a Hood #3

The 1/4" sweat connections on this unit are designed to slide over 1/4" tubing for a standard brazed joint

Lennox 44L72 Limit Switch chemically resistant material designed forThe Lennox 44L72 is a high precision 100 145F Auto Limit Switch engineered for critical temperature regulation in commercial and residential furnaces. As a veteran technician knows, the secondary limit must respond instantly to airflow restrictions or over temperature conditions to prevent heat exchanger damage. This Lennox blower limit switch features an automatic reset, opening the circuit when the temperature exceeds 145 degrees Fahrenheit and