Resideo 123773A Sail Assembly 321042-401 Engineered specifically for high-demand HVACR

Engineered specifically for high-demand HVACR and energy management applications

you can calibrate the runtime directly on the logic board

higher pressure settings (such as 210 PSI or 290 PSI) are often required to maintain proper saturation temperatures

The Lennox 58C98 Relay is an essential OEM replacement component engineered for precision timing and sequenced power distribution in residential and commercial forced-air systems

Resideo 123773A Sail Assembly 321042-401 Engineered specifically for high-demand HVACRThe Resideo 123773A Sail Assembly acts as the critical sensing element for the S688A Sail Switch, providing reliable airflow detection in both vertical and horizontal duct configurations. This replacement sail assembly is designed to actuate the switch when duct velocity reaches the required feet per minute (FPM) threshold, ensuring that auxiliary equipment like humidifiers or electronic air cleaners only operate during active blower cycles. The