Altecnic’s electronic SATK32 heat interface unit (HIU) has passed the BESA test, a UK test standard for HIUs which aims to improve the performance of British district heating schemes.
Neil Parry, Head of Specification for Altecnic, commented: “One of the biggest drivers in the UK heating market is a move towards low carbon building services. Both Altecnic and our parent company Caleffi pride ourselves on our ability to anticipate needs and develop innovative products to meet those needs. The electronic SATK32 HIU is a great example of such innovation, with a number of features to help the specifier and end user achieve a cost effective, energy efficient and reliable district heating system.”
Altecnic’s HIU has been designed to protect the heat network from the effects of poor apartment heating control and high start-up demand, by limiting the primary flow rate to reduce demand peaks and controlling the primary return temperature.
If apartment radiators are poorly balanced, it is claimed the SATK32 will control the output to the heating and potentially DHW to hold a configurable low return temperature, this is known as Return Temperature Limitation (RTL).
Commissioning the HIU can be achieved remotely via the Modbus input/output connection, connected to either a building management system or Modbus network. This will also allow any faults or error messages on the HIU to be read remotely and diagnosed before an engineer comes to site.
The SATK32 also includes an integral room controller that can be configured to customise the level of access and features which are offered.
Niel continued: “The BESA standard is vital for the future development of district heating systems. As with any technology, not all HIUs are created equal. The extent of the benefits you can realise for your heat network are dependent on what you specify. We would urge all specifiers to check that the HIU specified meets the BESA standard.
“A correctly specified HIU will ensure that such systems are efficient and reliable. By managing the local supply to an apartment in response to demand, it can help the efficiency of the entire system to maximise energy savings and prevent the system failing to deliver hot water at times of peak demand.
“At Altecnic we are committed to raising the standard of centralised heating systems. Part of the answer is supplying the latest innovative products that meet the specifier and end users needs, but we also see a huge roll for education. It is why we have developed a series of CIBSE approved CPDs.”
