Page 36 - Climate Control News August 2021

Indoor Air Quality
Technology to clear the air
2020 CHANGED THE way we think about our homes, offices, schools, shops and other private or public spaces that we share.
With the development of the Covid-19 pan- demic around the world, the way we socialise, work and utilise our free time has had to adapt.
One of the most significant changes was more time spent indoors which has led to an increased concern about Indoor Air Quality (IAQ).
There are many factors that contribute to poor IAQ, in enclosed spaces. There are gaseous pollut- ants and then particulate matter pollutants (PM).
“SENSOR TECHNOLOGY IS USED TO ENSURE NO PEOPLE ARE IN THE ROOM BEFORE SELF-CLEANING BEGINS.”
Of the gaseous, one of the main sources is a group known as volatile organic compounds or VOCs, which are gases emitted from many com- mon products. These include: paints, and other solvents, aerosol sprays, air fresheners, furnish- ings and building materials, just to name a few.
Proper ventilation is one of the easiest ways to improve IAQ. By opening windows or using an air renewal system, indoor air is diluted with fresh, outdoor air.
Use your air conditioning system to keep hu- midity levels low and manage indoor tempera- tures, both of which can elevate the presence of gases and PMs.
Air conditioners also feature specialised filters that can help improve IAQ. Developing technolo-
gy to promote cleaner and healthier environ- ments is not new to Hitachi Heating & Cooling.
This is a company that specialises in efficient climate control solutions that improve IAQ. Fol- lowing are a few of the technologies featured in Hitachi’s range of air conditioners.
Wasabi Air Purifying Filter is a PM 2.5 filter that provides powerful antibacterial, anti-aller- gen, anti-mould and deodorising properties when combined with the Hitachi Cooling & Heating standard Stainless Steel Pre-Filter and can remove up to 99 per cent of the most com- mon types of bacteria, particulate matter and al- lergens, as well as bad odours.
UV Fresh emits shortwave ultraviolet light onto the filters from an internal LED, neutraliz- ing 99 per cent of bacteria trapped on the filter to keep the inside of your home clean and reduce the risk of odours.
FrostWash minimises the amount of dust, mould and bacteria that build up on your air con- ditioner’s heat exchanger and reduces their pres- ence inside your household by up to 93 per cent. It traps the dust and dirt that lands on the heat exchanger by freezing in moisture what’s gener-
ated during normal operation. The frost is then thawed and flushed hygienically out the unit, carrying the dust, mould and bacteria with it.
Hitachi’s FrostWash technology promotes a healthier indoor experience and keeps unpleas- ant odours at bay. This is self-cleaning technolo- gy that thinks before it acts.
The FrostWash cleaning cycle is automatic, starting after a specific number of operating hours have been accumulated.
To do so, the unit needs to temporarily cease its cooling function - no one wants their air con- ditioner to clean itself while in operation.
That's why, before initiating, sensor technolo- gy will ensure there are no people present in the room to avoid interruption to the comfort of any occupants.
In the instance that a user wishes to initiate the cycle manually, a simple press of the Frost- Wash button on the S-Series controller is all that is required.
With the need to take better measures to moni- tor and improve indoor air quality, Hitachi has taken the steps necessary to ensure that the spac- es you live and work in are as healthy as possible.
With more time spent at home, the goal is to create healthier indoor environments.
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ABOVE: This is self-cleaning technology that thinks before it acts.
ABOVE RIGHT: Hitachi’s FrostWash technology promotes a healthier indoor experience.
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