The UK has set a legally binding target to achieve net zero greenhouse gas emissions by 2050. Achieving this will require virtually all heat in buildings to be decarbonised, and heat in industry to be reduced to close to zero carbon emissions. 
CIBSE AM17: Heat pumps for large non-domestic buildings provides and consolidates best practice guidance with the aim of supporting high quality design, installation, commissioning, operation and maintenance of large heat pump systems.
This document is principally aimed at building services designers, and therefore assumes a base level of technical understanding around building services systems. This guide will also be of use to other readers including developers, installers and operators who are involved in the application of heat pumps to large non-domestic buildings. A key aim of this document is to increase awareness of the common issues faced in delivering effective heat pump systems in larger buildings, thereby reducing future instances of ineffective systems.
For the purposes of this guide, large heat pump installations have been defined as those with a thermal output of over 45 kW. The guide covers heat pumps which provide space heating, cooling, domestic hot water (DHW), and process heat.
The guidance assumes that a heat pump has already been selected as the preferred primary heat source and principally covers installations within the UK market.
AM17 provides guidance on both new-build applications and the retrofit of heat pumps to existing buildings.