The Daikin-McQuay 4020700 Electronic Expansion Valve with Piping Assembly is a replacement refrigerant control component designed for compatible Daikin and McQuay HVAC systems. It works by electronically regulating refrigerant flow into the evaporator, adjusting the flow rate according to system operating conditions to support proper cooling performance and efficient heat transfer. Th... https://www.partshnc.com/4020700-daikin-mcquay-exv-w-piping-assy