Data centers seek novel methods for increasing energy efficiency and lowering costs. Using waste heat is considered to be one of the major upcoming trends, especially in countries where heat demand is high.
Office HVAC systems also contribute to energy use. As the office air conditioning is designed to suit the needs of employee comfort, it is separate from the systems cooling the computer or server rooms.
Therefore it is important for mixed-use data centers to use compact and reliable systems that use less energy and have lower operational costs.