Lennox 12L04 Manifold R-407A While some HVAC limit switches

While some HVAC limit switches appear similar

or flow switch trip errors on the boiler control board

Is this a manual or automatic reset control

This genuine OEM part serves as the advanced replacement for the obsolete HH18HA350

This transformer is designed for a 460V primary input to step down power for 230V control circuits

Lennox 12L04 Manifold R-407A While some HVAC limit switchesThe Lennox 12L04 4 Burner Gas Manifold is a critical OEM replacement component engineered for precise fuel distribution in residential and commercial gas fired furnaces. Also identified by catalog number 104069 02, this manifold is designed to ensure uniform gas pressure across the burner assembly, preventing inefficient combustion or delayed ignition. For technicians performing system restoration, the Lennox HVAC 4 burner manifold provides exact port