Sehyup Machinery Co., Ltd, which has researched developed and manufactured air conditioning products over the last 24 years, newly developed most difficult technology after the recent 10-year research and development of air-source heat pumps. Now our company is supplying stable products in the air-heat source area. The system developed in the application of sub cooling and vapor injection technologies can maintain its stable performance even in the worst operating conditions. Now the system has developed into large-sized products which are supplied to customers. Based on the technology accumulated through the research and development of air-source heat, we will make our most effort to develop overall heat pumps with various kinds of sources including ground source, water source, and solar heat source and thereby give more satisfaction to our customers. Sehyup which focused on supplying heat pumps so far established water thermal storage division and system division to make it possible to use heat source products more efficiently Through the divisions, we will help to build the system that will be able to maximize customers’ energy cost saving and will give more reliability to customers.