Enhanced System Logic: Supports automatic changeover (ACO) and morning warm-up (MWU) for optimized thermal comfort

this unit handles airstream temperatures up to 150°F

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

erratic burner flames

Resideo VC6930NB6632 Valve R-134A Enhanced System Logic: Supports automaticThe 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