Hydrolevel 727 Controller 323055-751 Common Questions: What are the

Common Questions: What are the symptoms of a failing Lennox 14W94 expansion valve

While often categorized as a coil assembly

For field technicians and contractors managing residential or light commercial boiler maintenance

this valve is a critical component for HVAC pneumatic control

and the corrosive nature of furnace exhaust

Hydrolevel 727 Controller 323055-751 Common Questions: What are theThe Hydrolevel 727 (Part Number 45 727) is a heavy duty 120Vac high water limit and pump controller specifically engineered for precise liquid level management in hydronic and industrial systems. Designed with a solid state, no moving parts architecture, this tank level control eliminates common mechanical failure points such as sticking floats or worn out linkages. The 727 model functions as a pump up controller, activating your pump via SPDT