Hitachi SmartFlex - How VRF works
COP at 47°F
COP at 17°F
Efficiency values are certified according to AHRI Standard 1230.
Hitachi SmartFlex™ variable refrigerant flow systems achieve extremely high efficiencies by modulating the flow of refrigerant according to the exact demands of individual areas.
A VRF system typically consists of one or more outdoor units from which refrigerant is piped to a series of indoor fan coil units serving individual zones within building spaces. The system conditions the spaces by delivering to the indoor fan coil units only the volume of refrigerant required to meet the heating or cooling needs of each zone.
There are two basic types of Hitachi SmartFlex™ VRF systems, ranging in capacity from 3-30 tons:
Heat pump VRF systems are two-pipe systems
Heat recovery VRF systems are three-pipe systems
Heat Pump and Heat Recovery VRF Systems
Heat pump VRF systems are two-pipe systems that enable design for non-ducted or ducted applications. Precise heating or cooling is delivered to multiple zones.
Heat recovery VRF systems are three-pipe systems that also enable design for non-ducted or ducted applications. Precise heating and cooling is delivered with an extra measure of flexibility, since the system can provide simultaneous heating and cooling while transferring any excess heat or cooling from one zone to another.