The Safgard Model 1100 LWCO must be purchased separately if you are performing a new installation

ensure those components are on hand

Durable Construction: High-grade brass body resists corrosion and maintains structural integrity in demanding environments

and PL13 series HVAC units

York S1-6806-3351 Limit Switch 319847-401 The Safgard Model 1100 LWCOThe 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