11 Application example Closed evaporative cooling tower used for cooling, Chiller used for heating Closed evaporative cooling tower Chiller 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 Benefits of this setup › Chiller is only used when cooling tower capacity is not enough and/or when cooling and heating load of VRV is unbalanced very energy efficient installation › In case the chiller is operating, a renewable heat source (air) is used, contributing to BREEAM score. › It is possible to downsize the cooling tower, making the installation more compact When to use? › When there is anyway a chiller used for other purposes in the building › When space for outdoor installation is limited › Efficiency / green building certification schemes oriented projects
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