Africa’ s only monthly publication serving the HEVAC & R sectors

ISSN 1812-772X

ISSN 1812-772X

June 2025 I Vol 41 No 04

PUBLISHER DETAILS

PUBLISHED BY INTERACT MEDIA DEFINED( PTY) LTD 13A Riley Rd, Bedfordview, 2007, South Africa PO Box 695, Edenvale, 1610 Tel: + 27( 0) 11 579 4940 | Web: www. interactmedia. co. za

PUBLISHING UNIT LEAD: Dale Macnamara | dale @ interactmedia. co. za EDITOR: Eamonn Ryan | eamonn @ interactmedia. co. za

ADVERTISING EXTERNAL SALES Dale Macnamara | sales @ interactmedia. co. za Chandre van Aswegen | chandre @ interactmedia. co. za

SUBSCRIPTIONS: Ralph Shongwe | ralph @ interactmedia. co. za

SUB-EDITOR: Tanya Olckers | tanya @ interactmedia. co. za

DESIGN AND LAYOUT: Ruan Coetzee | ruan @ interactmedia. co. za PROCESS CO-ORDINATOR: Royce Headger | royce @ interactmedia. co. za

REGULAR CONTRIBUTORS Grant Laidlaw, Ryan Rennie and Michael Young

ADVISORY COMMITTEE Grant Laidlaw, John Parry, Pat Burke, Graeme Page and Willem van der Westhuizen

MANAGEMENT Operations / Finance: Sean Macnamara | sean @ interactmedia. co. za Finance: Laetitia Arnott | laetitia @ interactmedia. co. za

PRINTER: Typo Colour Printing Specialists

DISTRIBUTION / MAILING: distribution @ interactmedia. co. za

NEWS 3 SADC RAC country phase-out of HCFCs and HFCs in line with international protocols 9 CAREL’ s new white paper on indoor air quality

ASSOCIATIONS 11 The efficiency and evolution of cooling towers

BUSINESS 14 STone Generative AI: revolutionising HVAC & R software design 17 AES steaming ahead with boiler skills development 21 Premium Air Conditioning: a journey of innovation, growth and family values

FEATURE 24 Getting the most out of FRIGAIR 2025 – a guide

ENVIRONMENT-FRIENDLY PRINTING: All paper is sourced from the Forest Stewardship Council and Chain of Custody-certified suppliers. All wastepaper from the plant is recycled. All used plates are recycled. All new printing equipment is purchased for low energy-consumption levels and low volatile organic-compound emissions.

DISCLAIMER: While every reasonable precaution has been taken to ensure the accuracy of the advice and information given, neither the editor, publisher, proprietor, staff, nor any official body represented or published in this issue, will accept responsibility for any damages, loss, injuries, or false claims that may arise or be made in the content. Including but not limited to any references to gender, religion, politics, ethnicity, or personal preferences of any editorial contribution whether an industry expert, advertiser through sponsored or paid content or contract writer. We subscribe to the Code of Conduct of the Advertising Regulatory Board( info @ arb. co. za) and the Press Ombudsman( see below). Disclaimers by individual companies are hereby overridden by this disclaimer.

COPYRIGHT: Reproduction of any of the content and photographs is expressly forbidden in terms of the Copyright Act of 1987 with all amendments. All requests to reproduce must be made in writing to the publisher and such confirmation must be given in writing before proceeding. A copy of where the reproduction was published must be supplied to the publisher at the above address. All publication and exhibition titles are registered as trademarks in terms of the Trademarks Act of 1993 and are held by Interact Media Defined( Pty) Ltd, Reg No 2014 / 092774 / 07.

PRESS OMBUDSMAN: This publication has committed itself to maintain the highest standards of journalism as embodied in the Press Code of Professional Practice. If you believe we have failed to report news and comment accurately, honestly and fairly, you may lodge a complaint with the Press Ombudsman either by email, letter, or by telephoning the office for the procedure to be followed. Tel: + 27( 0) 11 484 3612 / 8 | Email: enquiries @ ombudsman. org. za Website: www. presscouncil. org. za for the press code and / or the complaints form.

EVENTS AND EXHIBITIONS 45 Techni Cool-Air Contracts: 50 years of innovation and resilience in HVAC & R

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Getting the most out of FRIGAIR 2025 – a guide

Cover images supplied by Freepik, Specialised Exhibitions & © RACA Journal