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 | | MITSUBISHI’S SLIMMER CASSETTES SHED THEIR COLLARS | | | Mitsubishi | | 01/07/2008 | | | New slimmer four way cassettes are one of the main features of the updated range of inverter split systems from Mitsubishi Heavy Industries. Convenient all metric model codes have also now been applied and enhanced control systems further complement the eco-lution range of split and multi systems. The new cassette models are now some of the slimmest on the market, with even the largest capacity unit fitting within a 300mm ceiling void without the need for spacer collars. Enhanced two wire control systems replace the previous three wire system simplifying installation. Sophisticated wired controllers enable users to adjust local temperatures for greater comfort; however the control parameters can be set with upper and lower limits in heating and cooling modes respectively by the building manager.
New slimmer four way cassettes are one of the main features of the updated range of inverter split systems from Mitsubishi Heavy Industries. Convenient all metric model codes have also now been applied and enhanced control systems further complement the eco-lution range of split and multi systems. The new cassette models are now some of the slimmest on the market, with even the largest capacity unit fitting within a 300mm ceiling void without the need for spacer collars. Enhanced two wire control systems replace the previous three wire system simplifying installation. Sophisticated wired controllers enable users to adjust local temperatures for greater comfort; however the control parameters can be set with upper and lower limits in heating and cooling modes respectively by the building manager.
MHI has significantly reduced the height of its range of FDT inverter-controlled cassette models. For example, larger capacity models of up to 14kW were 365mm deep but no have been reduced to 298mm, while smaller capacity models with a height of 295mm are now only 246mm deep. MHI’s David Lettis says the new design has a two-fold benefit. “Now that all models can be accommodated in a 300mm ceiling void without the need for a spacer collar, air conditioning units become less obtrusive, giving a better overall appearance to ceilings in offices or retail environments. In some applications, it may even be possible to reduce the number of indoor units needed as more powerful cassettes can now be installed,” he says.
Another modification to the range from MHI is the switch from hp-based (horse power rating) model numbering to the metric system, with each unit identified by its kW rating. This change affects the full range of inverter models from 1.5hp (4kW) to 10hp (25kW).
MHI's new two wire control system makes for easier and cheaper installation than the earlier three wire version and also enables greater data transfer at higher speeds within the system. The new wired controller RC-E3 enables users to adjust temperatures to suit their needs, while management functions such as set temperature limitation and the 24 hour programmable timer give the building manager over-riding control. “This significantly improves system efficiency and overall running costs,” says David Lettis. “The building manager is able to limit the amount of cooling or heating that individuals can request, which avoids unnecessarily high demands on the system – and excessive operating costs.”
Mitsubishi Heavy Industries is one of the largest of the 200 or so independent companies within the Mitsubishi community. Today, Mitsubishi Heavy Industries Ltd has 32,500 employees and annual sales of over £20 billion, ranging from air conditioning to aerospace, and from power systems to shipbuilding. In the UK, Mitsubishi Heavy Industries air conditioners are available through distributors HRP Ltd and 3D Air Sales Ltd. | |
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