Water-based air conditioning system has attracted increasing attention because of their smaller charge amount of refrigerant which is supposed to cause global warming. It is widely used for such as chiller, and there are more requirements for higher efficiency and improvements in workability in building use. This paper discusses the outline of HVRF and explains the refrigerant and water flow. HVRF enables free selection of a cooling mode or a heating mode in each indoor unit. It also discusses the coupled simulation of refrigerant circuit and water circuit.
See more of: Building Cooling and Heating System Design