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elevated ∆T = Kelvin and much lower water mass flow. The much lower water mass flow significantly reduces the pressure drops and the thermal properties ensure the 3WP operates with efficiency. The three-pipe’s new coil design ensures that the
system out performs in thermal heat exchange. The 3WP’s circuits are fed with warm water at a much lower temperature (280C~350C) than before whilst the heating capacity is maintained and improves both the COP and EER rates on a 24/7 basis. The chilled water is supplied at a moderately higher temperature (90C~160C).
Advantages
The smart use of a three-pipe system uses less pipework, requires less investment, reduces installation costs, is easy to design and repair which reduces overall costs and can make a significant contribution towards near zero energy buildings. The 3WP system ranges from 40kW to 400kW in a
single unit and up to 950kW in a cascade. Compared with previous technologies the performance and efficiency has significantly increased without compromising the thermal capacity. The 3WP’s lower water flow results in further savings as well as pumping energy delivering further benefits.
Fan coils
3WP leads to savings for Milan project
T
he three-pipe technology was trialled at an office and a four-star 150-room hotel in Milan, where the latter achieved 29%
lower investment and €4010 less annual energy consumption. In addition, a continuously higher COP and EER value is achieved. The installation costs of a three-pipe system
are lower compared to a four-pipe design and economically provides a cost-effective solution that offers the possibility of re-investing the initial savings in other efficiency improvements, which can further increase the overall efficiency of buildings further.
Aermec sees the three-pipe FCU is an attractive alternative to traditional two and four- pipe systems, offering excellent advantages for installers (reduced investment) and for the user (more efficient operation). It combines all their advantages whilst helping to achieve sustainability targets.
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