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While the physical valve body is the same
preventing short-cycling and optimizing thermal efficiency
Always check the harness plug and bracket shape to confirm furnace part compatibility
preventing long-term damage or safety risks
York S1-6806-3351 Limit Switch 340155-7026 While the physical valve bodyThe York S1 6806 3351 Limit Switch is a critical safety component designed for high performance thermal regulation in York HVAC systems. Engineered for precision, this bimetal limit control features a factory calibrated setpoint to protect the heat exchanger from overheating conditions. With a switch opening temperature of 150F and a closing temperature of 115F (Cl115 Op150), it ensures the burner circuit is interrupted if internal temperatures exceed
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