Description
The Lennox 11Y31 5-Ton Expansion Valve R-410A regulates fluid flow into the evaporator by adjusting according to temperature and pressure conditions at the outlet, ensuring controlled cooling operation. It operates through a sensing bulb and diaphragm that modulate the valve opening to maintain proper superheat during system operation. Within HVAC systems such as air conditioners and heat pumps, it enables accurate cooling fluid metering for effective heat exchange. Located between the liquid line and evaporator coil, it supports stable cooling output, balanced system operation and consistent performance under varying load conditions.









