267 Efficiency and environmental performance all in one Individual heat pumps connected to a central loop This innovative system consists of a network of heat pumps connected to a common central water loop. In each apartment is a Daikin Altherma 3 WS unit - a high-efficiency water-to-water heat pump with integrated domestic hot water (DHW) tank. The heat pump in each apartment works independently, but is connected to a common central water loop to form a communal system. The central water loop must be maintained between +10°C and below +30°C. Thanks to this wide temperature range, the central water loop can be warmed/or cooled via several different means: J Ground or air source heat pump J Shared ground array, borehole or thermal piles J Surface water source such as a river, canal or seawater J District heat network J Waste heat recovery This offers the designer full flexibility to select the most appropriate form of renewable energy available to the site: ground, water or air Low ambient temperatures for minimal heat loss This highly efficient heat pump network can provide economical heating, hot water and optional cooling for an entire apartment building at relatively low ambient water temperatures. Compared with the high distribution losses that occur in typical communal heating systems - which lead to overheated buildings and wasted energy - the low ambient loop means that heat losses are reduced by more than 90%. Hence it is a much more economical solution, that reduces the carbon footprint of the entire building. Key system advantages: J Utilises renewable (or recovered) energy J Low carbon heat pump solution delivers significant CO 2 reductions over traditional systems J Low carbon solution helps reduce carbon offset payments J Energy centre not required, saving valuable space J Heating, hot water & cooling via a 2 pipe network offers capital savings over a traditional 4 pipe solution J Intuitive user controls and internet connectivity as standard J In-apartment heat pump has integrated back up heater, so heating & hot water is maintained in any eventuality. J Simplified connection with water loop thanks to the embedded pressure independent control, for automatic flow from the heat pump J Pressure rating of 16 bar (water loop side) to simplify installation in high-rise buildings: no need of pressure brakers up to 20 floors Ground Source Surface Water Air Source Heat Pump District Heating Water Heat Recovery Daikin solution for commercial floor Daikin solution for commercial floor
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