Carrier HY84DA022 Terminal Board 320788-703 if the valve is leaking

if the valve is leaking externally or failing to actuate

Automated Condensate Removal: Reduces the risk of water hammer and pipe scaling by maintaining dry lines without manual intervention

Always isolate the pressure and disconnect the 110V power source before disassembling the valve for cleaning

By utilizing genuine Carrier relay board hardware

Carrier HY84DA022 Terminal Board 320788-703 if the valve is leakingThe Carrier HY84DA022 Terminal Board is a critical OEM replacement part designed for precise electrical termination and signal routing within Carrier, Bryant, and Payne HVAC units. As a primary HVAC control board interface, this factory authorized part serves as a robust connection point for complex wiring harnesses, ensuring the seamless communication between the main system controller and peripheral components like motors, sensors, and contactors.