Contents
HEVAC&R
FEATURE
29 Tool and tooling: Following trends, Bluetooth connectivity and beyond
PROJECT
36 Sandton Gate gets smart
CONTRIBUTORS
40 Getting technical: The origin of Covid-19
43 Support: Compressor failures and moisture in the system
46 Essentials: Control of gaseous contaminants
47 Responsible refrigeration: Fresh air and Covid-19
48 Back to basics: We don’t want water in our refrigeration systems
TECHNICAL
49 Bitzer refrigerant report: Part 2
Heating | Energy | Ventilation | Air Conditioning | Refrigeration
INTERNATIONAL NEWS
Water-filled window solutions
for heating and cooling
FEATURE
Tools and tooling: Following trends,
Bluetooth connectivity and beyond
PROJECT
Sandton Gate gets smart
TECHNICAL
Bitzer refrigerant report: Part 2
page
36 Sandton Gate gets smart
Cover image by RACA Journal
23 29 30
www.hvacronline.co.za RACA Journal I September 2020 3