Brochure

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Served By History
UV treatment solutions are fairly new to the HVAC
industry, but have been utilized for nearly a century. UV
can be installed in new construction, retrofit and add-
on projects. The following pages highlight the types of
Honeywell Home UV Treatment systems available and
the ideal application for each.
Signs That A Home Needs
A UV Treatment System
• Humid climate
• Closed windows and dry climate in winter
• Concern for maintaining energy efficiency
• Frequent cleaning of air conditioning ductwork
Lamp Intensity
Higher for airborne pathogens since exposure time is limited.
Lamp Life
Industry standard for effective UVC emission is 8,000
hours. Resideo uses soft lamps that are chemically coated to
minimize mercury buildup on lamp walls, increasing effective
operation to 10,000 hours.
Fan Speed
Slower fan speeds increase the time a pathogen is exposed to
UVC. Honeywell Home models were tested at 2,000 cfm in a
12” x 25” duct, representative of real-life applications.
Lamp Position
Three feet of open space both before and after the lamps
wherever possible provides the most effective UVC dosage.
How Does UV
Technology Work?
Ultraviolet is a high-energy light invisible to the naked
eye, which makes up three bands of the light spectrum
(UVA, UVB and UVC). UVC is the wavelength of light
utilized by Honeywell Home UV Treatment Systems
to scramble the DNA coding of bacteria and germs,
rendering the pathogen nonviable, unable to reproduce
or infect. This is possible because the pathogen’s nucleic
acid absorbs light energy from 230nm – 290nm, which is
within the range of UVC light.
Temperature
Cooler temperatures make it more difficult for UVC
to penetrate the glass lamp wall, which is why UV
Air Treatment Systems should be installed on the
return duct to avoid exposure to chilled air during
air conditioning season.
Maintenance
Dust settling on the outside of lamps reduces the
intensity of light, which reduces efficiency of the
system. Quarterly lamp cleaning with a soft damp
cloth ensure proper UVC output.
The dosage required is a measurement of light intensity and exposure time, and differs for each type of
pathogen. Many additional factors determine the effectiveness of UVC irradiation:
Honeywell Home
Common Lamps
Before
DNA
Scrambled
DNA
After
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