KXZRX Hi-COP Heat Recovery VRF outdoor unit -Simultaneous heating and cooling operations of individual indoor units. Maximum energy efficiency: COP 4.76 -Energy efficiency is maximised by employing Multi-port DC Inverter compressor with concentrated electric winding -Total piping length up to 1000m and a maximum pipe run of 160m. - Wide range of controls, central controls and BMS systems are available.