NAFA 2011 Williamsburg, VA

NAFA 2011NAFA 2011Williamsburg, VAWilliamsburg, VA

Ultraviolet EnergyUltraviolet EnergyPresented by Presented by Sam GuzmanSam Guzman

American Ultraviolet CompanyAmerican Ultraviolet Company

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- Basic explanation of UV and how it worksBasic explanation of UV and how it works

- Safety aspects of working with UVCSafety aspects of working with UVC

- Benefits of using UV technology: Benefits of using UV technology: - EconomicEconomic- Indoor Air Quality (IAQ) Indoor Air Quality (IAQ)

NAFA 2011NAFA 2011- Types of applications and equipmentTypes of applications and equipment

- Static vs. dynamicStatic vs. dynamic

- Standard and High density arraysStandard and High density arrays

- Lamps and ballastsLamps and ballasts

- Bare lamps, fixtures, and racksBare lamps, fixtures, and racks

NAFA 2011NAFA 2011ASHRAE-Recent developmentsASHRAE-Recent developments

-Standards for surface and air -Standards for surface and air disinfection disinfection

-Degradation of materials commonly -Degradation of materials commonly found in an AHU found in an AHU

-New chapter for equipment-New chapter for equipment

- Programs for the next AHR show- Programs for the next AHR show

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Underwriters LaboratoryUnderwriters Laboratory

Recent interest in UV technologyRecent interest in UV technology

What it may mean to manufacturers and What it may mean to manufacturers and end usersend users

QuestionsQuestions

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Why add UV equipment to an air-handler?Why add UV equipment to an air-handler?

Adding UV saves you moneyAdding UV saves you money

-No more coil cleaning man hours-No more coil cleaning man hours

-No more coil cleaning chemical costs-No more coil cleaning chemical costs

-No more downtime for critical areas-No more downtime for critical areas

-Maintains and restores AHU efficiency -Maintains and restores AHU efficiency

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A dirty coil means:A dirty coil means:

-reduced heat transfer-reduced heat transfer

-narrowed space -narrowed space between finsbetween fins

-loss of surface area due -loss of surface area due to impactionto impaction

All of these make the AHU All of these make the AHU run longer and harder to run longer and harder to bring the space to the bring the space to the desired temperaturedesired temperature

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McGill University 2 Year Double Blind McGill University 2 Year Double Blind Study published in The LancetStudy published in The Lancet

99% reduction of microbial and endotoxin 99% reduction of microbial and endotoxin concentrationsconcentrations

40% reduction in respiratory symptoms40% reduction in respiratory symptoms20% reduction in all symptoms20% reduction in all symptoms

NAFA 2011NAFA 2011ASHRAE Position Document on Airborne Infectious Diseases Approved by ASHRAE Board of Directors June 24, 2009 listslists UV as the top three control UV as the top three control

strategies to be considered for future strategies to be considered for future research projectsresearch projects

UV not only can save money it can save lives!UV not only can save money it can save lives!

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Equipment: UV lampsEquipment: UV lamps

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Ballasts / TransformersBallasts / Transformers

ElectronicElectronic Magnetic Magnetic

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Types of UV applications in an AHUTypes of UV applications in an AHU

StaticStatic DynamicDynamic

-target does not move -target does not move -air rushes by -air rushes by

-time is 24/7-time is 24/7 -time is 1 second or less-time is 1 second or less

-standard array can destroy -standard array can destroy - high density array used to - high density array used to

“ “hard to kill” contaminantshard to kill” contaminants destroy common airborne destroy common airborne

“ “easy to kill” contaminantseasy to kill” contaminants

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ASHRAE history with UVASHRAE history with UV20052005 ASHRAE TG 2.UVAS formedASHRAE TG 2.UVAS formed20072007 TG 2.UVAS becomes TC 2.9 Ultraviolet Air and Surface TG 2.UVAS becomes TC 2.9 Ultraviolet Air and Surface

TreatmentTreatment20082008 ASHRAE Handbook-S&E chapter on UVASHRAE Handbook-S&E chapter on UV20092009 ASHRAE Position Document on Airborne Infectious ASHRAE Position Document on Airborne Infectious

Diseases identifies UVGI as a proven technique for Diseases identifies UVGI as a proven technique for airborne airborne infection controlinfection control

20102010 TC 2.9 composes new chapter for ASHRAE Applications TC 2.9 composes new chapter for ASHRAE Applications HandbookHandbook

20102010 SPC185 UVC Lights For Use In Air Handling Units or Air SPC185 UVC Lights For Use In Air Handling Units or Air Ducts Ducts To Inactivate Airborne Microorganisms composes standardTo Inactivate Airborne Microorganisms composes standard

20102010 ASHRAE commissions research project on the degradation ASHRAE commissions research project on the degradation of of materials found in an AHU when exposed to UVC energymaterials found in an AHU when exposed to UVC energy

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Underwriters Laboratories safety firstUnderwriters Laboratories safety first

UL and UVUL and UV

Friend or Foe?Friend or Foe?

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Thank youThank you

Questions?Questions?