Lennox 20J99 Limit Switch 323269-701 preventing liquid slugging and protecting

preventing liquid slugging and protecting the compressor during variable load conditions

this unit allows for non-intrusive installation without disconnecting existing power conductors

you should measure a consistent sweep across the 135-ohm range as the float linkage moves the wiper arm

limit string lockout

With a 3/4 inch NPT connection and an impressive 11 Cv flow factor

Lennox 20J99 Limit Switch 323269-701 preventing liquid slugging and protectingThe 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