Up to 16(10p)indoor units can be individually controlled by one outdoor units. 1 Reliable heart The adoption of Daikin and Hitachi inverter compressor, Tokyo-imported electronic expansion valve, 4-way valve, solenoid valve and pressure sensor etc ensure the well operation of the units. 2 Strong heating Reverse defrosting without stop technology and electronic expansion valve metering control ensure the strong heating of the unit in cold winter. 3 Super long refrigerant pipe designed ● The adoption of proprietary designed oil separator and reliable oil cycling measure makes the max length of refrigerant pipe reach 100m and 50m for max fall between the indoor and outdoor units. ● The outdoor unit can be installed on the roof of the building to save space and make the repair convenient. 4 Wide temp range and accurate temp control The units can operate from -15°C to 45°C.If necessary , we can add PTC electrical heating for you .Inverter system control the temp accurately. The fluctuated temp could be controlled within ±0.5°C. 5 Controlled by intranet Using CAN technology , DRV series can be controlled by intranet and self-diagnosis from long distance. 6 Module designed, suitable for large scale system ● An outdoor unit of DRV system can max connect with 16 indoor units to form an independent system. ● DRV is a module-formed unit. Be of strong expansibility and flexibility. 7 Space saving, easy for installation For its single refrigerant , DRV dont need water pipe system ,air cycle system, general control, cool tower and water pump, in addition, the volume of the unit is small, you can install it on the ground or the roof of the building etc. 8 Flexible designed and match In case there are some faults with the unit, the self-diagnosis system will tell you the faulty unit, so it is convenient for after sale service.