York Expansion Valve Parts

Overview

The YORK 2547939000 is an OEM electronic expansion valve (EXV) coil designed to control refrigerant flow in residential and light commercial HVAC systems. The coil energizes the expansion valve, enabling precise metering of refrigerant into the evaporator coil and allowing the system to shut off or redirect flow as demand requires. Proper valve coil function is critical to maintaining correct superheat levels and protecting compressor integrity. This is a direct OEM replacement part, ensuring fit and electrical compatibility with original equipment specifications. Installation is performed by licensed HVAC technicians during routine service or refrigerant-side component replacement. This coil is suited for HVAC systems that use an electronic expansion valve as the primary refrigerant metering device. EXV-equipped systems are common in higher-efficiency split systems and heat pumps where variable refrigerant metering improves seasonal efficiency ratings. The coil assembly mounts directly to the valve body and connects to the system control board via low-voltage wiring. Replacement is typically required when the coil fails to energize, causing the valve to remain stuck open or closed and resulting in system faults or loss of capacity. Key Features OEM replacement coil for YORK electronic expansion valves Controls refrigerant metering to protect system components and maintain proper superheat Compact form factor at 5.8 inches length, 3 inches width, and 3 inches height…