Fujitsu has launched the latest version of its J-Series heat pump mini VRF system, now operating on lower-GWP R32 refrigerant.
A statement said that the AIRSTAGE J-VS is the result of two decades of development and multiple upgrades as this year marks the 20th anniversary of the product dubbed “Little Napoleon”.
Aimed at small to medium-sized commercial applications or large residential spaces, the J-VS is available in capacities from 12-15kW. The single-fan chassis has a volume of 0.3m3, which is 17% less than previous model, and a weight of 74kg.
The statement added that up to 13 indoor units can be connected from a new range including compact 4-way cassettes, low static slim ducted and high efficiency ducted units, alongside wall-mounted options. This line-up includes additional 1.7kW models and, due to heat exchanger optimisation, a new 1.1kW slim ducted unit.
Compressor innovation improves seasonal efficiencies up to a possible 8.27 SEER, up to 36% increase from previous model, and 5.37 SCOP, up to 33% increase from previous model, it noted.
Martyn Ives, commercial director at Fujitsu, said: “The J-series has proved itself over two decades and continuous improvements have maintained its position as a leader in its class. This latest upgrade, together with the new compatible indoor units, will ensure that it remains a strong proposition for a wide range of commercial projects.’’
The system meets environmental safety standards specified in IEC 603352-40 for the use of R32 refrigerant, the statement said. Newly designed components include safety shut-off valves and leak detection sensors, it cited, which aid application when the design is deemed to be above the concentration limits of R32 in the event of a refrigerant leak. In addition, the refrigerant charge of the J-VS is 32% less than the previous model.