Installation typically requires No

making it a reliable drop-in for technicians handling larger residential or light commercial air handlers

A failed limit switch often causes the furnace blower to run continuously or prevents the burners from igniting

it is rated for steam applications up to 20 psi and temperatures up to 353°F

Trane CTR2731 Contactor 319847-401 Installation typically requires NoThe Trane CTR2731 is a commercial grade 3 pole definite purpose contactor designed for high demand HVACR applications requiring reliable switching of power circuits. Engineered with a 120V coil and a 40 amp inductive rating, this genuine OEM Trane part ensures seamless integration and prevents the premature component failure often associated with generic alternatives. This contactor features a three pole configuration and double pole power switching,