Fujitsu has introduced its new Airstage VRF system, the J-II Series. The J-II single-phase VRF is a heat-pump, serving ambient heating and cooling applications in a 3- to 5-ton size range, making it ideal for large residential and small commercial installations. The J-II offers up to 19.8 SEER and 11.4 HSPF. Installers can connect up to nine indoor units to each condensing unit and choose from 11 indoor unit styles to create individually-zoned comfort for any size space. Eleven indoor units range in size from 7 kBTU to 60 kBTU, the Fujitsu’s J-II VRF controls offer additional energy savings and comfort features, including scheduling, sleep timer, economy operation, and automatic season changeover.  Several J-II can be connected to central control, building management systems (BMS) over BACnet, LonWorks or Modbus, making it ideal light commercial and multi-housing use.