The York S1-025-27773-700 Flame Sensor is a critical OEM component designed for precise flame rectification in high-efficiency York gas furnaces and HVAC units

the 35-705505-113 design is polarity insensitive to help maintain this signal

the modular design allows for a zone valve motor replacement without needing to drain the entire hydronic loop

Using it with natural gas without a conversion kit can cause improper combustion and safety hazards

Belimo G232B-M Valve 320819-301 The York S1-025-27773-700 Flame SensorThe Belimo G232B M is a professional grade 1 1 4 inch NPT globe valve designed for precise flow control in demanding hydronic systems. Featuring a rugged bronze body and durable brass trim, this 2 way globe valve is engineered for high performance chilled or hot water applications. With a 20 Cv flow coefficient and a modified equal percentage flow characteristic, it ensures stable modulating control even under fluctuating pressure conditions. The stem