Nordyne 920666A TXV 321894-709 Technicians should install the straight-thru

Technicians should install the straight-thru relief valve in the vapor space of the liquid receiver

increasing the amperage rating is acceptable as it provides more surface area for the electrical load

For contractors performing boiler control repair

If you are experiencing drop-outs

this specific model is calibrated exclusively for natural gas

Nordyne 920666A TXV 321894-709 Technicians should install the straight-thruThe 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