verify the flue configuration

this SPDT temperature switch provides dependable single-stage control for both heating and cooling applications

Failure is typically caused by cracked ceramic insulators due to thermal shock or excessive carbon soot accumulation on the probe surface

Designed specifically for Level 4 networking requirements

Watts 0391009 Ball Valve Refrigerant verify the flue configurationThe Watts 0391009 is a 1 inch Lead Free LF909 QT reduced pressure zone (RPZ) backflow preventer assembly, designed to provide high hazard protection against backsiphonage and backpressure in potable water systems. This model serves as the direct replacement for the older 909QT 1 series, featuring a modular check valve design for streamlined field maintenance. The integrated 1 4 turn ball valves provide reliable shut off capability and easy testing