1. High efficiency of the heat exchange, air side heat exchanger adopts the V shape structure. 2. Energy saving and environmental protection: modular control output cooling capacity and air conditioning load to achieve the best match. 3. Reasonable structural design, low maintenance cost, spare parts for high universality. 4. Easy installation, little weight, small overall dimensions, widely applicable. 5. Intelligent defrost: intelligent antifreeze, freezing point protection.