Nordyne 920666A TXV 320788-702 Common Questions How do I

Common Questions How do I verify if the 624677R board or the motor module is faulty

ensuring equipment safety

20" PF rating ensures the system shuts down immediately if venting or inducer performance drops

making it suitable for most commercial boiler and chiller loops

Nordyne 920666A TXV 320788-702 Common Questions How do IThe Nordyne 920666A TXV is a critical OEM component designed for 4 ton R 22 HVAC systems. This thermal expansion valve is engineered to maintain a precise superheat by regulating the flow of R 22 refrigerant into the evaporator coil, preventing liquid slugging and ensuring compressor protection. As a genuine Nordyne replacement part, it eliminates the calibration issues often found with universal aftermarket valves, providing a direct fit for 4 ton