The Amana-Goodman 0257F00172S Heat Exchanger is an official OEM component meticulously engineered to maintain the safety and efficiency of your furnace heating system

and E units (YK models)

Whether you are performing a routine expansion valve replacement or troubleshooting a refrigerant flow restriction

utilizing a copper silicon alloy that meets the wetted surface requirements for potable water

Modulating control uses a 0/2-10 VDC or 4-20 mA signal for precise positioning

Trane CNT5640 Pressure Control 328140-751 The Amana-Goodman 0257F00172S Heat ExchangerThe Trane CNT5640 Pressure Control is a critical safety and diagnostic component designed for precision sensing in HVAC systems. This SPST air pressure control functions as a differential pressure switch, monitoring airflow and ensuring the inducer motor or blower is maintaining the correct static pressure before allowing ignition or continued operation. Built for durability in high cycle environments, the CNT5640 provides reliable proof of flow,