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

ISSN 1812-772X

ISSN 1812-772X

September 2021 I Vol 37 No 7

PUBLISHER DETAILS

PUBLISHED BY INTERACT MEDIA DEFINED ( PTY ) LTD 13A Riley Rd , Bedfordview 2009 , 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 : Benjamin Brits | benjamin @ interactmedia . co . za

ADVERTISING EXTERNAL SALES Dale Macnamara | sales @ interactmedia . co . za Zeldalee du Toit | zeldalee @ interactmedia . co . za

SUBSCRIPTIONS : Maxlee Marange | mmarange @ interactmedia . co . za Ralph Shongwe | ralph @ interactmedia . co . za

SUB-EDITOR : Tarren Bolton | tarren @ interactmedia . co . za TECHNICAL SUB-EDITOR : Charles Nicolson

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

CONTRIBUTORS Charles Nicolson , Grant Laidlaw , Rhys Evans , Christiaan Beek , Louise Woodburn and Lynne McCarthy

ADVISORY COMMITTEE Martin Braun , Charles Nicolson , Grant Laidlaw , John Parry , Alec Johannsen , Charel Marais , Ralph Cramer , 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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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 : 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 | carmelr @ ombudsman . org . za Website : www . ombudsman . org . za for the press code and / or the complaints form .

NEWS 3 Effectiveness of air purifiers against respiratory viruses 5 New modular free cooling operation chiller 9 Building energy performance rating certification 11 IWC launches new-look website with leading e-commerce functionality

PROJECTS 42 Private healthcare-groups ’ s corporate office HVAC gets another life

CONTRIBUTORS 48 Getting Technical : Ozone in air 50 Support : Phase-down status of refrigerants in SA 52 Contractor ' s Corner : Why a price war in our industry will hurt the customer 53 Industry Contribution : SA youth – is alcohol a challenge ?

55 Industry Contribution : Software security sees covid-19-themed threats surge 56 Business : Virtual safety officers 57 From the Industry : The growing impact of counterfeit products on consumers

42

Private healthcare-groups ’ s corporate office HVAC gets another life

Heating | Energy | Ventilation | Air Conditioning | Refrigeration

NEWS Building energy performance rating certification

FEATURE ‘ Silent components ’ that make systems work

EVENTS Industry gives another green light on FRIGAIR 2022

PROJECT Private healthcare-groups ’ s corporate office HVAC gets another life

Cover credit : Coldfact Projects CC