System Efficiency: Restores factory-spec cooling performance and dehumidification by regulating R410-A flow accurately

making it high-compatible with standard manifold and pipe fittings

Its compact switching relay design facilitates easy troubleshooting and terminal identification

provided the fault condition is cleared

York S1-373-23784-003 Gasket Kit 318423-701 System Efficiency: Restores factory-spec coolingThe York S1 373 23784 003 Gasket Kit is a critical OEM replacement component engineered specifically for 21 inch upflow condensate pan assemblies in 90% efficiency residential furnaces. This kit ensures a pressure tight seal between the heat exchanger cabinet and the drain pan, preventing hazardous combustion byproduct leakage and localized water damage. As a seasoned technician knows, a compromised condenser pan gasket can lead to secondary drain pan