The Acson R32 VIENTO INVERTER air conditioner is a split-type system available in multiple horsepower options (1.0HP, 1.5HP, 2.0HP, and 2.5HP). It utilizes R32 refrigerant, known for its lower global warming potential compared to older refrigerants, making it a more environmentally friendly choice. The inverter technology provides energy-efficient cooling by adjusting the compressor speed based on the cooling demand. The model numbers are A3WMY10EF (1.0HP), A3WMY15EF (1.5HP), A3WMY20EF (2.0HP), and A3WMY25EF (2.5HP). The "VIENTO" likely refers to a design or feature related to airflow or cooling performance.