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

ISSN 1812-772X

ISSN 1812-772X

May 2024 I Vol 40 No 3

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

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

SUB-EDITOR : Megan O ’ Connor | megan @ interactmedia . co . za

DESIGN AND LAYOUT : Glyniss Bone | glyniss @ interactmedia . co . za PROCESS CO-ORDINATOR : Lebo Bucibo | lebo @ 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

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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 .

NEWS 3 Goscor Lift Trucks introduces newly branded Bobcat forklifts

INTERNATIONAL NEWS 4 Vertiv enhances testing and manufacturing of chilled water solutions 5 How West Africa is building resilience against climate change

ASSOCIATIONS 6 Panel discusses the role of renewable energy in assisting SA to overcome loadshedding 9 Maximising efficiency through VRF basics and proper installation techniques 13 New SARACCA ED reflects on his first six months 14 35th Annual SAIRAC Golf Day

EVENTS AND EXHIBITIONS 17 Frigair 2025

BUSINESS 18 The cold plate conundrum ( Part 2 )

PROJECT 36 Innovative energy solution ENRG blanket gets inaugural fitting in SA at

Standard Bank

CONTRIBUTORS 39 Welcome to the solutions page 42 How to cool the data centre in the 21st century ( Part 5 )

TECHNICAL 43 Gas engine VRF systems – dead in the water ?

20

Chill or thrill ? Unravelling the secrets of smart HVAC controls

Refrigeration and Air Conditioning Africa

ISSN1812-772X | R92.00 May 2024 | Vol 40 No . 3

Heating | Energy | Ventilation | Air Conditioning | Refrigeration

NEWS Goscor Lift Trucks introduces newly branded Bobcat forklifts

ASSOCIATIONS Panel discusses the role of renewable energy in assisting SA to overcome loadshedding

FEATURE Chill or thrill ? Unravelling the secrets of smart HVAC controls

COVER BY : testo South Africa ( Pty ) Ltd

Cover Credit : Supplied by testo