The VAL3824 TXV is essential for maintaining the correct superheat across the evaporator

while often referred to as an 11x11 wheel

you must replace the valve and seat as a matched set

The Marley Engineered Products 4520-2017-000 Limit Switch is a critical safety component designed for high-temperature HVAC equipment diagnostics and protection

This genuine Spence replacement part is fabricated to withstand temperatures up to 750°F (399°C) depending on the valve body material (cast iron or steel)

Resideo ARD5TZ Damper Els PW 29614 The VAL3824 TXV is essentialSecure precise airflow control with the Resideo ARD5TZ, an industry standard 5 inch automatic round damper designed for seamless integration into modern 24Vac zoning systems. This two position damper is engineered for high performance residential and light commercial HVAC applications, serving as the direct professional replacement for the legacy CRDS05 model. Built with heavy duty galvanized steel and a single blade configuration, the ARD5TZ features