-
Technical
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:
- an understanding of the technology and its applications
- explanations of the differences between VRF and alternative technologies
- information on the availability and comparability of systems
- information on the calculation of heating and cooling loads and effects on component selection
- an understanding and recognition of the importance of diversity and capacity ratios in VRF applications
- guidance on how to achieve energy efficient systems
- information on how best to specify VRF systems
- advice on commissioning procedures
- information on maintenance, training and resources
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.
Recent posts
IOR RACHP EngTech Section Launches New Technician App
10 Jul 2025
The IOR’s RACHP EngTech Section is proud to announce the launch of an innovative mobile technician’s app, now available on the Apple App Store and Google Play Store.
News
All Set for the 126th IOR Annual Dinner
16 Sep 2025
Bookings are open for the 126th IOR Annual Dinner, which will be held on 12 February 2026. Building on the resounding success of last year’s occasion, ‘The Original Fridge Dinner’ will return to the elegant Hilton London Bankside.
Live event
IOR Autumn 2025 Newsletter Now Available
15 Sep 2025
Read the IOR's latest newsletter for the latest on the Institute's activities, including an update on its skills objectives. This issue also includes articles written by industry stakeholders.
Publication
IOR Elections Open
15 Sep 2025
Members can now vote for their next President-Elect and two new Trustees. Read the candidates' statements here.
News
Invitation to the 2025 Annual General Meeting of Members
15 Sep 2025
This year’s AGM will be held on 29th October. members can vote in advance, or attend live in person or online.
Live eventSitemap
