The "AC 3 Tier" refers to a specific type of air conditioning system designed for efficient cooling in larger spaces. It typically consists of three main components: the compressor, the condenser, and the evaporator. This tiered approach allows for better temperature control and energy efficiency, making it suitable for commercial buildings and larger residential areas. In an AC 3 Tier system, each component works together to circulate refrigerant and remove heat from the indoor environment. This setup can be more effective than traditional single-unit systems, as it can handle varying cooling loads and provide consistent comfort throughout the space.