the York S1-024-21218-700 is an industry-standard heat pump reversing relay often utilized in Coleman and Luxaire air handlers to manage heat/cool mode switching

is an essential component for high-pressure refrigeration systems utilizing HFC refrigerants and POE or PVE oils

allowing for seamless integration without compromising the actuator seating pressure

Common Questions Is this assembly compatible with all Trane display units

While designed for internal wall mounting

Modine 3H0400780003 Limit Switch Els PW 17895 the York S1-024-21218-700 is anThe Modine 3H0400780003 is a high performance L220 40F Limit Switch designed for critical thermal protection in Modine Hot Dawg units and industrial air handlers. This SPDT high limit switch is engineered to open on temperature rise at 220F and automatically reset when the temperature cools to 40F. As a veteran grade HVAC replacement part, it provides an exact fit for stalk mount configurations, ensuring the safety of the heat exchanger by