Key Benefits Direct OEM Compatibility: Specifically designed for 1311-104 and 1361-104 model zone valves

the internal slide may be physically obstructed or damaged

Common indicators include internal or external leakage

How do I set the defrost curve on the S1-331-01975-102

York S1-373-27868-407 Evaporator Coil 321142-301 Key Benefits Direct OEM Compatibility:The York S1 373 27868 407 Evaporator Coil is a critical 4 ton OEM replacement engineered for precision heat transfer in commercial and heavy duty residential split systems. This indoor evaporator coil serves as a direct drop in for technicians maintaining York HVAC systems, encompassing a robust copper tube and aluminum fin construction that ensures high efficiency thermal absorption. Designed to handle R 410A refrigerant, this assembly integrates a