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New directions for VRF

Manufacturers are looking at new ways to help their customers, from improved energy efficiency to longer warranties

Hitachi says its new Hi-Efficiency Set Free FSXNH series is suited to all European climates, with one of the highest energy-efficiency ratios on the market thanks to a number of proprietary Hitachi technologies.

The range is currently the highest performing VRF system in Japan, based on annual performance factor (APF) and recently received the Japanese Energy Efficiency and Conservation Award for 2013.

Like its predecessor, the FSXNH offers two-pipe heat pump and three-pipe heat recovery options from a single unit, with models ranging from 5 hp to 36 hp (3.7 to 27 kW).

Each outdoor unit is lightweight and modular which, combined with piping lengths of up to a total of 1,000 m, and an improved height difference of 90 m between outdoor and indoor levels or up to 30 m height difference between indoor units, the FSXNH can meet any design brief or site restrictions, Hitachi says.

The manufacturer prides itself on its range of permutations - more than 100 indoor unit and heat exchanger combinations, with units as small as 1.7 kW and up to 150 per cent connection ratio (to outdoor capacity).

A wide range of individual and centralised control systems are also available. Amongs the avenues that can be considered, the manufacturer highlights: ErP Lot 11-compliant heat recovery modules; active heat exchangers; direct expansions kits to work with third party AHU; and air curtains.

Hitachi has also updated its HiToolKit software, so planning, selecting and designing a complete VRF system can be done in a matter of minutes.

“With market-leading SCOP and SEER, we expect the new Hi Efficiency FSXNH to be very popular both in the UK and across Europe,” says David Oldroyd, vice president and managing director of Hitachi Air Conditioning Europe.

Toshiba claims industry-first with seven-year warranty

Toshiba Air Conditioning has introduced what it claims is the industry’s first seven-year warranty on its air conditioning products. The firm, which was also the first manufacturer to introduce a five-year warranty, said it will provide unrivalled protection and reassurance for both installers and end users.

Commercial director David Dunn says: “The new warranty gives people total peace of mind, and is based on the proven reliability of our products and their ability to maintain performance over many years of operational life.”

Under its previous warranty scheme, in the unlikely event  of a component such as a PCB failing, in line with industry practice, the installer would receive a new PCB plus £28.00 towards labour costs.

Under the new scheme, Toshiba would supply a new PCB but would pay £175.00 towards labour costs, a more realistic rate.

This warranty is available to all Toshiba accredited installers completing the required training modules, subject to the equipment being installed and commissioned in accordance with the manufacturer’s guidelines.

Installers complete a commissioning sheet for each project, which is then checked by the Toshiba technical team and, subject to standards being met, a warranty certificate issued.

Alternatively, the work could be carried out by Toshiba at the request of the installer.

Mr Dunn says: “The scheme sets a new standard in our industry and gives the installer complete peace of mind, since whichever option is chosen in the event of a claim, a full remedy and recompense is provided.

“Under the new scheme, no one is left out of pocket – a frequent criticism of some company schemes.”

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