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

ISSN 1812-772X

ISSN 1812-772X

March 2022 I Vol 38 No 1

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

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

REGULAR CONTRIBUTORS Grant Laidlaw and Michael Young

ADVISORY COMMITTEE Martin Braun , 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

PRINTER : Typo Colour Printing Specialists DISTRIBUTION / MAILING : distribution @ interactmedia . co . za

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 : 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 .

When measurement matters

Jul - Sep 2021 Print : 2414 Online : 4170

NEWS 3 Growth in construction sector positive for all linked industries 5 TecsaReco appoints GM 6 LCE takes on Gauteng region through new branch 9 RACA Journal seeks input on peer review platform

ASSOCIATIONS 17 Certification provides assurance and is more than a test report

EVENTS AND EXHIBITIONS 21 Have you booked your stand for Frigair 2022 ?

FEATURES 25 Precise engineered spaces

PROJECT Your project belongs here ! - contact Benjamin @ interactmedia . co . za

CONTRIBUTORS 37 Support : Refrigerant changes and lubricants – Part 2 40 Building health : Air quality an important differentiator for commercial property in 2022 43 Professionals who care : The Squid Game of the HVAC industry – continued 44 Environment : Climate change means going beyond the obvious 47 Women in built : Integrating international OHS standards saves money and minimises risk 48 Energy : Hospitals save lives , but are they able to save energy ? 50 Technology : BIM adoption is crucial to ensure built industry sustainability

TECHNICAL 52 Addressing Legionella in mechanical systems 54 Working with stainless steel 57 Evaporative cooling and humidification spray nozzles

25 Heating

Precise engineered spaces

RACA Journal I March 2022

| Energy | Ventilation | Air Conditioning | Refrigeration

INTERNATIONAL NEWS : Greenhouse gases and direct air capture tech

EVENTS AND EXHIBITIONS : Have you booked

your stand for Frigair 2022 ?

FEATURE Precise engineered spaces

www . hvacronline . co . za

TECHNICAL Addressing Legionella in mechanical systems

MSPark0 | Pixabay