The York RY11848S1-SE-COM1001-0 Communication Expansion Card (part number 25-2900) is a genuine OEM control module designed to expand communication capabilities within York HVAC control systems. This module enables advanced integration between system components, allowing efficient data transfer, monitoring, and diagnostics for optimal system performance. It?s an essential part for upgrading or replacing communication boards in compatible York units. Key Features: Genuine York OEM communication expansion card. Provides reliable data link between control modules. Enhances system communication and diagnostics. Designed for seamless integration with York control architecture. Factory-calibrated for plug-and-play installation. Helps maintain efficient system control and energy management. Built with high-quality electronic components for durability. Specifications: Part Numbers: RY11848S1-SE-COM1001-0 / 25-2900 Type: Communication Expansion Card Function: Expands system communication and control capabilities Voltage: Low-voltage control circuit (per York control system standards) Mounting: Plug-in control board design Manufacturer: York (Johnson Controls) Application: Communication interface for York HVAC systems Compatible Models (short list): BP120C00P4DAAA3A BP150C00B4AAA1A BP102C00A4EAA3A BP120C00N4AAAA3C BP150C00S4AAC3C BP102E18B4BAAA3A BP120E24N4AAA3A BP150C00P4EAA2A BP120C00P4QTS3C and more. Why Choose This Item: The York RY11848S1-SE-COM1001-0 Communication Expansion Card ensures seamless digital communication between system components, supporting faster diagnostics, advanced control, and energy-efficient operation. As a factory-authorized OEM part, it guarantees reliable performance, precise compatibility, and long-term system stability, making it the ideal replacement or upgrade for York HVAC control systems.