Armstrong Fluid Technology 571110LF-344 Valve R-22 The Reznor 259521 Relay Kit/Sequencer

The Reznor 259521 Relay Kit/Sequencer is a critical OEM replacement part designed to maintain precise control over blower and venting sequences in gas-fired unit heaters

provided the pressure ratings are not exceeded and the application requires a cold water makeup source

OEM Standards: Genuine York replacement part ensures exact fitment and electrical compatibility

or inconsistent manifold pressure resulting in "booming" ignitions

Armstrong Fluid Technology 571110LF-344 Valve R-22 The Reznor 259521 Relay Kit/SequencerThe Armstrong Fluid Technology 571110LF 344 is a high performance 1 1 2" NPT circuit balancing valve engineered for precise hydronic flow regulation in commercial HVACR systems. As a lead free (LF) CBV150VTCR model, it serves as the direct replacement for 571109 344 and 571110 344, ensuring compliance with modern potable water standards. This Y pattern globe style valve features a multi turn micrometer handle with a set point indicator, allowing for