14 Dec 2017
A new guide on variable refrigerant flow (VRF) air conditioning was published in December 2017
as a joint publication from the Institute of Refrigeration and CIBSE. IOR members will be able to download it for FREE from the web site. Over the last 30 years VRF systems have established themselves as effective cooling and heating technology in a range commercial applications. During this time VRF manufacturers have innovated and developed their own range of different VRF solutions. With increased focus on energy efficiency, carbon emissions and sustainability, the need for guidance on the design, application and use of VRF cooling and heating systems has become more important.
The main purpose of this publication is to provide an independent source of information to assist designers in selecting and configuring VRF systems to realise their optimum environmental and economic potential. Specifically, it provides:
Free to IOR and CIBSE members. £72 inc VAT for non members.
Download the new IOR CIBSE VRF Air Conditioning Guide
Or search all of our publications in the Technical Information download area.
21 Jan 2026
As part of its commitment to decarbonisation, the UK Government has launched a consultation to understand what alternative technologies are available across different types of domestic and non-domestic buildings to ensure consumers have a choice of suitable low-carbon heating technology options.
20 Jan 2026
How could waste heat and minewater transform district heating and cooling? Join Ted Perry Award winner Eshagh Goudarzi for a session exploring the potential of these low‑carbon thermal energy sources for heating and cooling.
14 Jan 2026
It's all in the latest IOR Newsletter! This issue includes technical updates, progressing the skills objectives and tips on how to make the most of your membership including how to apply for Engineering Council registration.
6 Jan 2026
The organising committee is delighted to announce that broadcaster Cally Beaton will be this year’s after-dinner speaker at the IOR Annual Dinner.
5 Jan 2026
Members should have received the latest IOR Programme Card, highlighting events that will take place over the coming months. We're kicking things off in January with two events!