RACA Journal February 2025 RACA_February2025 | Page 4

Africa ’ s only monthly publication serving the HEVAC & R sectors
ISSN 1812-772X

Contents

ISSN 1812-772X
February 2025 I Vol 40 No 12
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
REGULARS
1
Hot and chilled
33
Kurt Johannsen ’ s decades in ammonia
44
Products
45
Brand listings
48
Final fix
NEWS 3 ABC Ventilation Systems unveils innovative solutions for underground mines
ASSOCIATIONS 5 The journey to a better world : a refrigeration perspective ( Part 2 ) 9 SADC RAC Association calls for standardised training and registration for gas practitioners
EVENTS AND EXHIBITIONS 15 What ’ s on at FRIGAIR 2025
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
BUSINESS
17
Air , hybrid and liquid : the cooling mix for 2025
20
Theft : yet another challenge to contend with
23
How robust contracts and construction insurance go hand in hand
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 .
FEATURE 25 Flexible comfort : how VRF systems are changing the HVAC landscape
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 .
PROJECT 35 Revamping comfort at Irene Hotel
CONTRIBUTORS 39 Welcome to the solutions page 39 How to cool the data centre in the
21st century Part 9
35
Revamping comfort at Irene Hotel
Refrigeration and Air Conditioning Africa
ISSN1812-772X | R92.00 February 2025 | Vol 40 No . 12
Heating | Energy | Ventilation | Air Conditioning | Refrigeration
NEWS ABC Ventilation Systems unveils innovative solutions for underground mines
ASSOCIATIONS The journey to a better world : a refrigeration perspective ( Part 2 )
FEATURE Flexible comfort : how VRF systems are changing the HVAC landscape
PROJECT Cover Sponsered by : Mitsubishi Electric Airconditioners ( Pty ) Ltd
Cover Sponsered by Mitsubishi Electric Airconditioners ( Pty ) Ltd
When measurement matters
Jul - Sep 2024 Print : 2 831 Online : 4 274

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RACA Journal I February 2025
www . refrigerationandaircon . co . za