16 Dry cooler used for cooling, boiler used for heating Boiler Cooling mode Heating mode Refrigerant flow Expansion tank Strainer Circulator Pump Heat exchanger Flow valve or flow control valve Flow switch Stop valve Three way valve Application example Closed evaporative cooling tower Benefits of this setup ū Simple, cost efficient. Good option to use VRV technology in high-rise building ū Does not make any special demand to the building/ project/installation location ū Provides high efficiency as for hotel application it is usual to have simultaneous cooling and heating load. ū Heat recovery process in the water loop often allows the water temperature to stay within acceptable range even without using drycooler and boiler. When to use? › For high-rise buildings or other places where VRV Water Cooled is preferable because of installation conditions
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