This control board is specifically compatible with the newer style AUX I/O board (P/N 073312721)

ensure the diaphragm is mounted in a vertical plane to maintain the specified set point

Designed to maintain the integrity of the valve stem assembly

and 24V DDC controllers

The White Rodgers F92-0228 Seal Kit is a field-serviceable solution designed specifically for 1-inch 1300 series hydronic zone valves

York S1-502039 Ball Valve R-410A This control board is specificallyThe York S1 502039 Ball Valve is a critical isolation component engineered for HVACR refrigeration cycles and high pressure cooling systems. This 7 8" ODF sweat connection valve features a full port design to ensure maximum flow capacity with negligible pressure drop across the line. Constructed with a forged brass body and a chrome plated ball, the EBV 1070 ball valve provides superior resistance against corrosion and internal scaling in demanding