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Air conditioning has come a long way since the early days, when a waft of cold air on a hot day was considered a sufficient miracle to satisfy building occupants. Since then, the addition of increasingly clever features has transformed air conditioned from mere building cooling to a total indoor environmental control system. To the humble chiller have been added precise humidity control, high efficiency filtration and controllable fresh air intake. But perhaps the biggest leap forward has been the development and rapid adoption of reverse cycle heat pumps. These turned air conditioning literally upside down, and brought the provision of high efficiency heating within its capability. Now, step forward the latest advance in air conditioning technology – a VRF system that not only provides cooling and heating, but delivers hot water and generates electrical power. The SANYO ECO G Power gas-driven air conditioning system is believed to be the world's first VRF system to supply comfort heating and cooling while co-generating hot water and electricity for use in the building.The pioneering low carbon technology is claimed to be able to reduce emissions of carbon dioxide by up to a third, significantly reducing environmental impact and cutting power bills. Since the early Eighties, SANYO has pioneered the development of gas-fired VRF technology, and its systems have become the leading choice for commercial projects, particularly those with on-site electrical power restrictions. This situation is met with surprisingly often in towns and cities.Air conditioning may nevertheless be deemed essential for commercial purposes and/or for the comfort of occupants. The option of upgrading the electrical power supply can be extremely expensive. As well as being costly, it can also be disruptive on-site and time consuming – and is generally not an attractive option for the end user. In this light, its suitability for use in applications with restricted power gives a compelling new twist to SANYO's G Power system. Rather than adding to a building's electrical load, the system actually contributes power from its onboard generator, driven by the gas-engine, which could help provide critical additional energy when headroom is particularly tight.The system is equipped with a permanent magnet, non-bearing type generator. Depending on the air conditioning load, this produces up to 4kW of electricity - sufficient to run eight desk-top computers. An electricity output to a power inverter allows the power to be used either on site or to be returned to the grid. In addition, the unit has a capacity to generate 22kW of hot water, from harnessing waste energy from the lean-burn gas-fired engine at the heart of the chiller. This can be used for the hot water supply in the building.The 20hp model provides 56kW cooling or 63kW heating, and the system can provide both electricity and hot water in heating and cooling mode. It can be connected up to 24 indoor units. The ECO G Power is part of SANYO's revamped M Series range of gas-driven VRF systems which offers increased efficiency and performance. Improvements include improved part-load performance, reduced gas consumption with Miller-cycle engine and reduced electrical consumption through the use of DC fan motors. The technology uses waste heat from the engine to eliminate the defrost cycles, therefore delivering 100 per cent heat performance in severe weather conditions with an outside temperature as low as -20°C. The range is based on R410A refrigerant, enabling the use of highly compact components and a reduced system charge.SANYO has included a new lean-burn combustion system in its GHP units that utilises air-fuel ratio feedback control to minimise NOx emissions. The manufacturer claims the system has the lowest nitrogen oxide emissions in the market, 66 per cent below the standard. Powering ahead:For buildings maxed out on electrical power, a gas heat pump could be the ideal solution. SANYO's Power G VRF generates its own electrical power for use in the building.Enables the building's electrical power to be used for other critical demands, such as IT, manufacturing, domestic services and so on. Running on mains gas, all that is required is a single phase supply. Overcomes the need for expensive upgrade to electrical power substations to run heating and cooling systems. Reduces power loadings in a building, particularly important during peak periods. The ECO G Power has a 4 kW generator which provides enough power to run eight desk top computers. Power Output 20HP GHP running at 70% of load 40kW cooling Power generation output 4kW Hot water generation (65 deg C) 22kW Total output 66kW Total input power 30kW = A system COP of 2.2
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Air conditioning has come a long way since the early days, when a waft of cold air on a hot day was considered a sufficient miracle to satisfy building occupants. Since then, the addition of increasingly clever features has transformed air conditioned from mere building cooling to a total indoor environmental control system. To the humble chiller have been added precise humidity control, high efficiency filtration and controllable fresh air intake. But perhaps the biggest leap forward has been the development and rapid adoption of reverse cycle heat pumps. These turned air conditioning literally upside down, and brought the provision of high efficiency heating within its capability. Now, step forward the latest advance in air conditioning technology – a VRF system that not only provides cooling and heating, but delivers hot water and generates electrical power. The SANYO ECO G Power gas-driven air conditioning system is believed to be the world's first VRF system to supply comfort heating and cooling while co-generating hot water and electricity for use in the building.The pioneering low carbon technology is claimed to be able to reduce emissions of carbon dioxide by up to a third, significantly reducing environmental impact and cutting power bills. Since the early Eighties, SANYO has pioneered the development of gas-fired VRF technology, and its systems have become the leading choice for commercial projects, particularly those with on-site electrical power restrictions. This situation is met with surprisingly often in towns and cities.Air conditioning may nevertheless be deemed essential for commercial purposes and/or for the comfort of occupants. The option of upgrading the electrical power supply can be extremely expensive. As well as being costly, it can also be disruptive on-site and time consuming – and is generally not an attractive option for the end user. In this light, its suitability for use in applications with restricted power gives a compelling new twist to SANYO's G Power system. Rather than adding to a building's electrical load, the system actually contributes power from its onboard generator, driven by the gas-engine, which could help provide critical additional energy when headroom is particularly tight.The system is equipped with a permanent magnet, non-bearing type generator. Depending on the air conditioning load, this produces up to 4kW of electricity - sufficient to run eight desk-top computers. An electricity output to a power inverter allows the power to be used either on site or to be returned to the grid. In addition, the unit has a capacity to generate 22kW of hot water, from harnessing waste energy from the lean-burn gas-fired engine at the heart of the chiller. This can be used for the hot water supply in the building.The 20hp model provides 56kW cooling or 63kW heating, and the system can provide both electricity and hot water in heating and cooling mode. It can be connected up to 24 indoor units. The ECO G Power is part of SANYO's revamped M Series range of gas-driven VRF systems which offers increased efficiency and performance. Improvements include improved part-load performance, reduced gas consumption with Miller-cycle engine and reduced electrical consumption through the use of DC fan motors. The technology uses waste heat from the engine to eliminate the defrost cycles, therefore delivering 100 per cent heat performance in severe weather conditions with an outside temperature as low as -20°C. The range is based on R410A refrigerant, enabling the use of highly compact components and a reduced system charge.SANYO has included a new lean-burn combustion system in its GHP units that utilises air-fuel ratio feedback control to minimise NOx emissions. The manufacturer claims the system has the lowest nitrogen oxide emissions in the market, 66 per cent below the standard. Powering ahead:For buildings maxed out on electrical power, a gas heat pump could be the ideal solution. SANYO's Power G VRF generates its own electrical power for use in the building.Enables the building's electrical power to be used for other critical demands, such as IT, manufacturing, domestic services and so on. Running on mains gas, all that is required is a single phase supply. Overcomes the need for expensive upgrade to electrical power substations to run heating and cooling systems. Reduces power loadings in a building, particularly important during peak periods. The ECO G Power has a 4 kW generator which provides enough power to run eight desk top computers. Power Output 20HP GHP running at 70% of load 40kW cooling Power generation output 4kW Hot water generation (65 deg C) 22kW Total output 66kW Total input power 30kW = A system COP of 2.2
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