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Fujitsu’s new VRF technology is now being installed around Australia and in New Zealand, with the company on target to achieve budget and market share.
According to Fujitsu, what is especially gratifying with its new VRF system is its Power Accumulation Technology (PAT), which is said to offer clear advantages over current VRF systems.
The key to Fujitsu’s VRF is the combination of three constant speed compressors and PAT, rather than the traditional inverter or two compressor systems. Three compressors gives seven steps of control and PAT smoothes out the steps required for the varying capacities: reducing noise, increasing efficiency and therefore, improved economy.
Much of the development for the new technology was carried out at a 60m, purpose-built test tower at Fujitsu in Japan. The steel-framed tower has floors at every five metres and is complete with an elevator for transporting outdoor units. The testing system enabled Fujitsu to determine factors such as the volume of lubricating oil, diameter of piping and specifications of refrigeration cycle control when the distance between the indoor and outdoor units is large.
As a result long piping - up to 100m - can be offered, plus the largest total system size in the industry, up to 100 outdoor units and 400 indoor units on one wiring system.
Additionally, the extensive Fujitsu indoor unit range means there are 42 types and sizes of indoor units to choose from for each system. This includes floor consoles, wall mounted, under-ceiling models, cassettes, bulkheads and ducted.
Source: Building Products News.
4-Sep-2003
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