Hotels have numerous zones divided, such as guest rooms, restaurants, indoors pools, etc. These zones have different functions and flow of people, thus require for different fresh air volume and cooling effect. A quiet operating environment, precise temperature control and a stable supply of hot water are all key to improving the comfort of users. At the same time, taking into account the aesthetics of the design, achieving harmony between HVAC system and the interior decoration as well as outdoor landscaping is also an issue that needs attention.