Heat Pumps Today

20 Anna Wakefield, Head of Marketing for Grant UK takes HPT through an installation of an Aerona³ air source heat pump. Step by step: installation of air source heat pump Heat pumps are straightforward to install, but preparation which includes a full room by room heat loss calculation, and thorough understanding of how the technology works from the customer’s perspective, is vital to ensure the heating meets their needs and operates both efficiently and effectively. It is also important to ensure engineers complete full product installation training before specifying and fitting a heat pump. Grant UK has comprehensive installer courses available at the Academies in Devizes, Hawes and Livingston, as well as online tuition via our eLearning Academy. June | July 2021 Step One It is essential to start with a full room by room heat loss calculation to determine the heat pump required to meet the design conditions for the property concerned. It is also critical that the heat emitters and pipework are sized to deliver the required heat output at the lower heat pump system flow temperature. The heat pump and additional complimentary heating technologies are then delivered to site ready for installation. Step Two The location for the heat pump should have already been determined taking into account the clearances required. Holes are drilled in the external wall ready for the heat pump pipework. The heat pump is then placed into position and bolted onto anti-vibration feet on a firm flat level base. Step Three New heat emitters are fitted throughout the house, having been specifically sized for the lower flow temperature of the heat pump system - in this case they are using Afinia aluminium radiators which are good conductor of heat and great for low temperature systems. Step Four A new high-performance cylinder is installed with adequate hot water storage for the household’s needs. This has a larger indirect coil than a standard cylinder to effectively provide hot water with the lower flow temperature from the heat pump. Step Five Plumbing connections are made between the unit and the cylinder. The heat pump system and cylinder pipework are lagged to protect against heat loss. T R A I N I N G I N S T A L L A T I O N