RACA Journal July 2021 | Page 4

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

Contents

ISSN 1812-772X
July 2021 I Vol 37 No 5
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 , Barney Richardson , Andrew Perks and Samkelwa Xaba
ADVISORY COMMITTEE Martin Braun , Charles Nicolson , Grant Laidlaw , John Parry , Alec Johannsen , Charel Marais , Annemarie Wake , Ralph Cramer and Pat Burke .
MANAGEMENT Operations / Finance : Sean Macnamara | sean @ interactmedia . co . za Finance : Laetitia Arnott | laetitia @ interactmedia . co . za
REGULARS
1 Hot and chilled
29 Personality profile : Wynand Groenewald
43 Products
48 Final Fix
NEWS
3 Toshiba releases new VRF system into South Africa
7 Employment equity act amendments : What they mean for employers
EVENTS AND EXHIBITIONS
9 Inspiration for women in the HVACR sector
14 59 students celebrated at graduation ceremony
FEATURE
19 VRF : New technology creates new possibilities
PROJECT
30 Radisson takes on OR Tambo Hotel and Conference complex
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 .
CONTRIBUTORS
36
Getting technical : Quantitative aspects in herd immunity
38
Responsible refrigeration : Highlights for new training on the safe handling
of refrigerants
39
Support : Water composition in chiller systems
41
Back to basics : It ’ s been a long time !
42
Women in HVACR : Students receive responses from a mentor ( Part 2 )
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 .
30
Radisson takes on OR Tambo Hotel and Conference complex
Heating | Energy | Ventilation | Air Conditioning | Refrigeration
NEWS EVENTS
FEATURE PROJECT
Toshiba releases new VRF system 59 students celebrated at
VRF : new technology creates Radisson takes on OR Thambo hotel into South Africa graduation ceremony new possibilities and conference complex
Cover credit : © RACA Journal | Benjamin Brits
When measurement matters
Oct - Dec 2020 Print : 2708 Online : 4693

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RACA Journal I July 2021
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