ASHRAE Journal - July 2010 - 95

Sustainable Products Capabilities Advertising Section
Providing safe, continuous cleaning of coils and drain pans, Steril-Aire UVC Emitters™ improve heat transfer and airflow for operational efficiency and energy savings. UVC Emitters keep building occupants healthy by eliminating biofilm found on the coils and in the drain pans and destroying airborne viruses and bacteria before they circulate throughout the building. Energy savings: Studies show that even a thin (0.024-inch/0.61-mm) layer of biofilm buildup on a coil increases energy consumption by at least 21.5 percent. By cleaning coils continuously, UVC eliminates biofilm much more effectively than conventional cleaning methods—saving energy by maintaining equipment at factory designed efficiency. Maintenance and operational savings: Manual coil cleaning can be a major HVAC maintenance expense and may be very difficult to perform on small, toughto-access packaged or unitary systems. In the hospitality industry, dirty coils can lead to unoccupied rooms and nonrevenue generating guest and conference rooms. Steril-Aire UVC solves these problems by greatly reducing or eliminating the need for chemical cleaning or pressure washing of any size coil. It also eliminates the associated downtime, inconvenience and potential discomfort of guest and staff, as well as worker exposure to cleaning chemicals. IAQ control: UVC improves air quality by preventing the spread of infectious diseases, and by reducing allergy and asthma symptomscommonly triggered by biofilm, a complex matrix of mold, bacteria, viruses and debris. Biofilm is a common source of odors, frequently contributing to guest complaints and HVAC operational issues. UVC creates a safer, more comfortable indoor environment and eliminates the mildew, musty odors from the air conditioning system. Improved indoor air quality has also been documented to improve worker performance and decrease absenteeism. Equipment service life: The surface cleaning effect of UVC helps restore older HVAC systems to efficient operation, prolonging the life of aging air handlers. Water conservation: Reclaiming UVCcleaned condensate for cooling tower makeup, irrigation or gray water flushing can
July 2009

reduce water and waste-water costs. LEED contribution: Because of these varied benefits, UVC may contribute to earning LEED credits in one or more areas. For optimum performance, SterilAire recommends installation horizontally across the full width of the face of the coil, on the supply side of the system downstream from the cooling coil on 24 inch centers and above the drain

pan. Steril-Aire UVC delivers the highest output in the industry with 9 microwatts per linear inch of glass measured from a distance of 1 meter, tested at an air velocity of 400 feet per minute and at a temperature of 50º F. Independent testing shows Steril-Aire delivers up to 6 times the output of other industry devices, making it the “First and Best in UVC for HVAC™”.

www.info.hotims.com/30917-72
ASHRAE Journal 95

ASHRAE Journal - July 2010

Table of Contents for the Digital Edition of ASHRAE Journal - July 2010