WHY UV?

How UV Saves Money

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It’s an easy way for architects and builders to find savings.

UV commonly used in HVAC systems for coil cleaning results in energy savings and, understandably, that’s what architects and builders like to see. And, the UV might claim to target human pathogens. PetAirapy is different, because our UV systems generate energy savings with coil cleaning, as well as help prevent the spread of zoonotic and animal pathogens, along with human pathogens. To know if your UV is designed for more than just energy savings – that it can also kill more than 99.9% of tested virus and bacterial pathogens in one air pass – ask for the tests and studies. Is it in writing? Learn more about the difference on our Air Cleaning vs. Coil Cleaning page.

HVAC tech

Saving money with UV disinfection.

When professionally installed inside your HVAC system, PetAirapy’s UV light will break down and clear away mold and biofilm that, over time, build up on coils, plenums, drain pans, and ducts. By doing so, UV can lower your energy cost by reducing pressure drop and improving heat transfer, increasing cooling capacity. Further, UV makes the need for yearly coil cleaning a thing of the past. As long as UV lamps are regularly changed per manufacturer specifications, coils will remain clean, eliminating the need for additional maintenance cost.

The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) is a professional association dedicated to the advancement of heating, ventilation, air conditioning and refrigeration systems design and construction. In their published “Field Study of Energy Use-Related Effects of Ultraviolet Germicidal Irradiation of Cooling Coil” here is what the researchers found in their investigation of installing UV to mitigate biofouling of a chilled water cooling coil:

“The application of UVGI on fouled cooling coils in an operating AHU (air handling unit) shows a 10% decrease in pressure drop and a 14.55% increase in heat transfer…”

UV analysis for estimated energy savings.

PetAirapy’s proprietary UV analysis software is an advanced, in-house tool for evaluating UV air and surface disinfection technologies in indoor environments. This unique software developed by PetAirapy helps maximize disinfection and savings.

Surface plot of irradiance