RACA Journal July 2023 | Page 53

Products

DIGITAL REFRIGERANT SCALE

Another world first from Testo : measurement tasks in the refrigeration sector have now become even more effortless .

The new wireless refrigerant scale Testo 560i revolutionises the charging of refrigeration systems and heat pumps . With the combination of scale and intelligent valve , a digital manifold from Testo and / or the testo Smart App , refrigeration systems and heat pumps are filled automatically and thus more quickly and precisely than ever before .

This not only saves air-conditioning and refrigeration technicians valuable time for other tasks , but at the same time , it also ensures that the system is filled with the exact amount of refrigerant specified and thus runs error-free .

This is made possible by the automatic Bluetooth connection of the scale and valve with Testo ' s digital manifolds ( current generation testo 557s / 550s / 550i and predecessor series testo 557 / 550 ) and with the testo Smart App for smartphone or tablet . The scale is also characterised by excellent handiness and high robustness .

Different target parameters can also be specified : superheating , subcooling or weight of the refrigerant .

For more information , call + 27 ( 0 ) 82 324 6889

Testo

IQ COOLING PAD

UVGI / GUV 2020

An air cooler will lower the temperature of a room but the maximum cooling effect is felt when a person is in the flow of air coming from the air cooler . For this reason , the evaporative air cooler is ideal for those rooms or open spaces where people congregate . Its portability makes it the ideal solution to solve heating problems for : kitchens , factories , people gathered in offices , conference rooms , waiting rooms , etc .

This evaporative air cooler is ideal for keeping people cool at very low cost in those places where it is not practical or economical to install traditional air conditioning .

CHARACTERISTICS :

• Saturation time less than one minute

• No split and no odour

• Head-on wind speed more than 3m / second

• Wind drag less than 70Ps

• Fungus-resistance : Grade 1

• Evaporation cooling efficiency more than 82 %

• Water sucking altitude more than 50-70mm / 5 minutes

For more information , call + 27 ( 0 ) 10 493 8746

Harmful bacteria , pathogens , viruses and molds can be deactivated by using UV-C light in the 254nm wavelength . Light at this wavelength can cause harm to unprotected eyes and skin and should therefore be used and installed with guidance .

Lamp replacement is required after 12 / 24 months or 9 000 hours of use . It can disinfect touch surfaces with direct UVGI / GUV or disinfect air using indirect UVGI / GUV .

“ Preventative measures include increasing ventilation rates and redesigning the work process or facilities where feasible . This process involves using disinfection devices such as UVGI / GUV .” – Department of Employment and Labour

No Personal Protective Equipment is required due to the nature of the solution . UVGI / GUV performance is dependent on air movement rates . Similarly , upper room UVGI / GUV effectiveness is dependent on maximising air mixing either through natural convection or mechanically aided .

HVAC systems are thus highly effective in filtering sterile air throughout your facility when supplemented by UVGI / GUV .

• Sani Duct Unit : allows you to tend to the incoming air supply and gets installed onto the ducting .

• Sani Ceiling Disk : allows an easy indirect UVGI / GUV solution for high-capacity areas . Covers a floor area of 36m ² which equates to six sanitised air movements per hour .

• Sani Intercooler : reduces the microbial activity within the air as well as the build-up on the coils of the air coolers .

For more information , call + 44 333 500 8368

www . refrigerationandaircon . co . za RACA Journal I July 2023 51