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.
2 Mar 2026
Members are invited to attend the launch of the IOR's Industry Skills Alliance. This event is open to individuals interested in shaping the future of the skills agenda for the RACHP sector. Find out more about the evet and the role of the Skills Alliance here.
3 Mar 2026
The Engineering and Building Services Skills Alliance (EBSSA) published recently their strategic Sector Skills Plan, as part of the work undertaken by the Construction Mission Skills Board.
2 Mar 2026
The paper for the IOR TechTalk on “Unscrambling the Refrigerant Clutter for the Future” on 5th March is now available. This is a great chance to hear the authors explore the topic in depth and put your questions to them.
26 Feb 2026
We're delighted to announce that the IOR Technician App has been shortlisted as a finalist for the ACR News Awards in the Training Initiative of the Year Category.
24 Feb 2026
A review of the IOR Constitution has been carried out to ensure it complies with current Charity Commission guidance and improve the wording for clarity. Open for consultation and comment by members until 30th April 2026.