VRV Water-to-air heat pump

13 Application example Geothermal operation Cooling mode Heating mode Refrigerant flow Expansion tank Liquid heater Strainer Circulator Pump Buffer tank Heat exchanger Flow valve or flow control valve Flow switch Stop valve Three way valve Ground loop with vertical boreholes Hot water tank Benefits of this setup › Very energy efficient › Ground loop can be in service for a very long time, so future equipment upgrades/replacements are easy › Vertical boreholes provide more stable water temperature (= Constant high efficiency) and do not occupy a lot of ground space. When to use? › When the soil is suitable for geothermal loops and there is availability of geothermal installation expertise locally › For the projects with high requirements to energy efficiency, green building certification oriented

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