Nordyne 920670A TXV Valve 30067439-890 the 21709 is the current

the 21709 is the current Lennox replacement part for legacy numbers including 54C95

Always check the system PSI against the manufacturer's maximum limits before fitting

Technicians should look for cracked ceramic insulation

Upon restoration of power

Nordyne 920670A TXV Valve 30067439-890 the 21709 is the currentThe Nordyne 920670A is an OEM thermal expansion valve (TXV) specifically engineered for 3 ton air conditioning and R410A heat pump systems. As the direct factory replacement for discontinued part number 669816, this externally equalized valve ensures precise refrigerant metering across various load conditions. For technicians performing a Nordyne 920670A TXV replacement, this component maintains the evaporator's superheat at optimal levels, preventing