and high-temperature cover gasket

By removing moisture and contaminants

Optimized Thermal Performance: Rated for 1100 RPM to match the original fan blade pitch

the accuracy of your water temperature sensor is the difference between optimal efficiency and a system lockout

the unit operates on a 9-13 PSI spring range for reliable fail-safe positioning

Lennox 20J99 Limit Switch 320735-701 and high-temperature cover gasketThe Lennox 20J99 Limit Switch is a critical safety component designed for precise thermal regulation within residential gas furnaces and air handlers. Engineered as a normally closed thermal protector, this switch features an automatic reset mechanism calibrated for a 130 160F temperature range. When the heat exchanger area exceeds the 160F threshold, the internal bimetal disc triggers the circuit to open, immediately interrupting the gas valve or