this is a complete valve assembly

Precise Pressure Modulation: Maintains the specific airflow-to-fuel ratio required for the pulse combustion process in G14 and G21 models

OEM Standards: Eliminates the risks associated with universal or aftermarket boards that may not support specific Utica-Dunkirk communication protocols

and main building management systems

While calibrated for York/Johnson Controls units

Resideo VC6930NB6632 Valve R-134A this is a complete valveThe Resideo VC6930NB6632 is a professional grade 1 2 inch NPT 3 way hydronic valve engineered for precise fluid management in fan coil units and air handlers. Designed for both hot water and chilled water HVAC systems, this valve body utilizes a balanced cartridge design that enables linear flow characteristics and exceptional shut off performance against high differential pressures. With a 1. 5 CV flow rating, it is optimized for low capacity