This wheel is commonly found in Trane and American Standard furnaces (series ADD

this genuine Carrier part guarantees the structural integrity of the drive assembly

Standard protocol is to replace the 1-inch flange gasket whenever the immersion heater is pulled to ensure a watertight seal upon reinstallation

the 2390-510 is specifically designed to align with 10 psig span mechanical requirements for proper proportional action

which must be ordered separately if needed

Schneider Electric (Barber Colman) TK-4001 Temp Control Els PW 29614 This wheel is commonly foundThe Schneider Electric (Barber Colman) TK 4001 is a high performance pneumatic bulb thermostat designed for proportional temperature control on reheat systems, return air terminal units, and sampling chambers. Engineered for heating applications, this direct acting controller features a 1 8" x 48" averaging bulb that ensures accurate thermal sensing across wide duct spans. With a factory set 15 psig supply air pressure and a 60 90F operating range,