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Category: Mitsubishi Electric VRF Air Conditioning City Multi Super Y R2 WR2 Series

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Mitsubishi Electric
VRF Air Conditioning Series

Mitsubishi Electric - the future is renewable & sustainable

Mitigation of global warming is a reality that we must all now face. Legislation is driving increased use of sustainable energy and businesses will have to demonstrate that their buildings are energy efficient and minimise CO2 emissions. More importantly, companies see the benefits of demonstrating to key stakeholders that they take a responsible approach to the environment.

Mitsubishi Electric understands these issues and is helping clients meet and exceed the targets with its energy efficient products and investment in renewable energy solutions.

Heat Pumps

Heat pumps upgrade naturally occurring low temperature heat into useful high temperature heat and vice versa to provide cooling (see diagram on right).

Mitsubishi Electric uses heat pumps in its advanced air conditioning units to maximise the heat and cooling potential of each system and minimise the energy consumption and therefore the CO2 emissions.

Heat pump technology offers a real potential for energy and therefore C02 reduction within buildings and especially within the home. This innovative, new technology offers the possibility of joining heat pumps to under floor heating systems, domestic boilers and heated swimming pools to supplement the energy consumption of both the cooling and heating requirements of modern life.

The operational characteristics of a heat pump are totally different to a traditional boiler. With a conventional boiler, one kilowatt of energy in gives less than 1 kilowatt of heat to the building. With a typical electrically driven heat pump boiler, one kilowatt of energy in will give more than 3 or 4 kilowatt’s of heat to the building, and these efficiency levels are predicted to rise year on year, increasing the benefits to customers and reducing CO2 emissions further.

Ecodan

Launched in September 2007, the Ecodan heat-pump heating system is an ideal low-carbon way of providing heating and hot water to residential properties.

With easy installation, Ecodan offers an average reduction of 50% in CO2 emissions and a 41% reduction in running costs against a gas-fired boiler. Ecodan uses proven heat-pump technology to produce 1,500kg less CO2 than a gas-fired boiler and 3,00kg less than an oil-fired boiler.

Air Curtain

This new heat-pump air curtain has been developed in a collaboration between Thermoscreens, the market-leading manufacturer of high-quality air curtain solutions, and Mitsubishi Electric.

The PHV DX range of air curtains offers a 67% reduction in both CO2 emissions and running costs over conventional direct electric models, and has been developed to offer a highly efficient way of providing a comfortable climate for customers and staff without compromising on performance.

The six models in the range link to a Mr Slim R410a outdoor heat-pump compressor unit, which uses advanced inverter technology to cut energy wastage and offer more flexibility of design and placement.

WR2 / WY Series Ground Source Heat Pumps

The adoption of renewable energy sources will be paramount to the future of building as Local Authorities introduce targets linked to planning regulations. Mitsubishi Electric’s water cooled City Multi range are listed on the Government’s renewable energy list and tests at the company’s Hatfield headquarters have proved that a WR2 linked to a ground slinky is over 300% more efficient at heating and cooling an office than a traditional gas-fired boiler and rooftop chiller combination.

Available in heat pump and heat recovery with model sizes of 8, 10, 16 and 20HP, both the WR2 and the WY can be linked to ground loops and boreholes to use the geothermal energy of the earth like a battery to store heating and cooling energy. All models are inverter driven with low starting currents and the same piping lengths as the air cooled versions.

As the diagram on the right shows, the WR2 system can link to a building’s water loop to transfer energy around a building, as well as transferring energy around its own refrigerant circuit to provide an incredible energy efficient system.

Mixed Mode

In another pioneering industry move, Mitsubishi Electric has joined forces with natural ventilation experts Passivent, to develop an indoor climate control system that uses free natural ventilation for the majority of the time, switching on the mechanical air conditioning only when ambient temperatures and internal conditions demand. This offers customers the best of both worlds, with an incredibly energy efficient way of providing fully controllable heating and cooling. The system uses Mitsubishi Electric’s advanced PLC (Programmable Logic Controller) to ensure the natural ventilation and air conditioning systems work in complete harmony.

This type of innovative use of previously competing technologies will become increasingly important as requirements to avoid overheating, whilst ensuring good ventilation are challenged with the drive towards increased energy efficiency.

With reference to the diagram above, in both summer and winter, the two systems work in harmony to provide free cooling when available supplemented by mechanical cooling or heating only when necessary.

Lossnay

Lossnay's simultaneous air exhaust to air supply heat transfer element provides effective ventilation, total heat recovery, (sensible and latent), providing a comfortable air temperature within the room. The energy saved by using Lossnay contributes towards lowering the running costs of air conditioning, minimising the size of air conditioning systems needed. Multi-ventilation Mode allows the supply air to balance the exhaust air, varying dynamically to meet the usage environment and location requirements. A free-cooling function with more running cost reduction is also available.

Technical information associated with:
Mitsubishi - Case Studies 1
Mitsubishi - Case Studies 2

Heat Pumps

WR2 / WY Series Ground Heat Pumps

Air Curtain

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Mitsubishi Electric Europe
Air Conditioning Systems Division
Travellers Lane
Hatfield
Herts
AL10 8XB

Tel (General) : 01707 282880
Tel (Sales) : 01707 282800
Fax : 01707 278674