Trane EXC1378 Heat Exchanger 320788-703 the unit cycles between 50

the unit cycles between 50

it is recommended to inspect and replace the filter during annual maintenance or more frequently in high-debris areas to prevent airflow resistance issues

while the 5/16" x 8-1/2" nickel-plated curved bulb and 3/8" stuffing box ensure robust thermal sensing and secure mounting

the ECM control module is likely the culprit

Features standard 5/8" sweat inlet and outlet connections for seamless field brazing

Trane EXC1378 Heat Exchanger 320788-703 the unit cycles between 50For field technicians and mechanical contractors tasked with restoring system integrity, the Trane EXC1378 Heat Exchanger serves as a critical OEM replacement for maintaining thermal performance in localized heating sections. This HVAC furnace part is engineered specifically for compatibility with Trane rooftop units (RTU) and American Standard gas electric packaged systems. Constructed with heavy duty corrosion resistant materials, the EXC1378 is