AIR HANDLING UNITS
The
importance of cleaning AHUs
Sajjun Lohia, sales and marketing coordinator at Climalife explains how clean AHUs can improve energy efficiency.
H
VAC systems, under normal conditions, will inevitably accumulate dust and debris ove time, hence they should be cleaned once or twice per
year. The benefits of cleaning include health promotion and maximum reliability as well as efficiency of the system. A well-maintained system offers many advantages such
as improved energy efficiency, longevity of system life and preserved performance. In addition, good maintenance can help to prevent contamination and remove offensive odours. With regards to air handling units, as with any HVAC system, continued upkeep could reduce the risk of costly repair bills. It would also mean units would be working at maximum efficiency which, as a result, keep energy costs down.
24 April 2023 •
www.acr-news.com
Coil cleaning Coils are in direct contact with the air flow pathway in all ventilation systems and thus should be cleaned regularly. Cleaning is important as coils have a direct impact on the rate of air flow, efficiency of heat transfer and indoor air quality. Dirt or debris on the coils add an extra layer between the air that blows over the coils and the refrigerant that absorbs and releases the heat. Over time, the accumulated dirt acts as an insulator making heat transfer less effective. Poor heat transfer leads to less efficient operation which means the unit has to run for longer periods; the unit is still required to produce the same degree of cooling or heating, so the system is now working overtime to achieve the same target temperature.
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