Nordyne 669772 TXV 323613-751 causing the heat exchanger to

causing the heat exchanger to exceed the 210°F limit

How do I ensure a proper connection to the gas valve

it should only open when the 170°F threshold is reached

As a field-ready solution for water heater repair

Excessive inlet pressure can lock up the internal diaphragm

Nordyne 669772 TXV 323613-751 causing the heat exchanger toThe Nordyne 669772 TXV is a precision engineered R410A thermal expansion valve designed to provide accurate refrigerant metering for Nordyne air handlers and heat pump systems. Built for durability and technical performance, this OEM replacement part actively monitors evaporator superheat to regulate liquid flow, preventing liquid slugging and ensuring the compressor remains protected under varying load conditions. Featuring a balanced port design,