Description

**METRON Fire Pump Controller Motherboard Assembly FD4-MB300, HCCA34210-SU** The METRON Fire Pump Controller Motherboard Assembly FD4-MB300 (Part No. HCCA34210-SU) is a critical electronic control component designed for use in Metron FD4 Diesel Fire Pump Controllers. Serving as the central processing and control unit of the controller, this motherboard assembly manages essential functions including engine control, alarm monitoring, battery supervision, charger monitoring, event logging, system diagnostics, and communication with display and operator interface modules. Engineered for reliable performance in fire protection applications, the FD4-MB300 motherboard continuously monitors controller inputs and operating conditions to ensure proper fire pump system readiness. It processes signals from pressure switches, engine sensors, batteries, charging circuits, and auxiliary devices while coordinating automatic and manual controller operations. The board supports alarm management functions by detecting abnormal operating conditions and providing timely notifications to operators and maintenance personnel. Designed for installation in commercial, industrial, institutional, and infrastructure fire protection systems, the HCCA34210-SU motherboard assembly helps maintain dependable fire pump controller operation and system reliability. It is commonly used for maintenance, repair, refurbishment, and replacement of existing Metron FD4 controller systems. Manufactured for durability and long-term performance, the FD4-MB300 motherboard assembly plays an essential role in ensuring that diesel fire pump controllers remain operational and ready to respond during emergency situations. Its advanced control capabilities, reliable communication functions, and robust design make it an important component in modern fire protection installations.