Facility systems refer to the integrated components that support the operation and management of a building or facility. These systems include essential elements such as HVAC (heating, ventilation, and air conditioning), plumbing, electrical, and fire safety systems. They work together to ensure a safe, comfortable, and functional environment for occupants. Effective facility systems are crucial for maintaining the overall efficiency and sustainability of a building. They help in managing energy consumption, ensuring proper waste disposal, and providing necessary services like lighting and temperature control. Proper maintenance of these systems is vital for prolonging the lifespan of the facility and enhancing user satisfaction.