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Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
Using UltraViolet LightUsing UltraViolet LightIn HVAC SystemsIn HVAC Systems
Presented by:Martin G. AlbertCentral Region ManagerUltraViolet Devices, Inc.
Tuesday, July 25, 2006
Lower Energy ConsumptionLower Energy Consumption
Reduce Maintenance CostsReduce Maintenance Costs
Improve Air QualityImprove Air Quality
withwith
UltraViolet Germicidal Irradiation UltraViolet Germicidal Irradiation (UVGI)(UVGI)
Ft. Wayne ASHRAE Seminar
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
Issue: Hospital Energy Costs Are RisingIssue: Hospital Energy Costs Are RisingAcute care hospitals’ annual energy Acute care hospitals’ annual energy costs* per square footcosts* per square foot (estimated)(estimated)* Energy costs include electrical, natural gas, steam, oil, coge* Energy costs include electrical, natural gas, steam, oil, cogeneration, solar, etc., but not waterneration, solar, etc., but not water
Percentage of change in annual Percentage of change in annual energy costs from last yearenergy costs from last year
Source: Health Facilities Management / ASHE 2006 Hospital Energy Survey
91% have higher energy costs over the previous year,91% have higher energy costs over the previous year,& more than half cited increases in the& more than half cited increases in the
doubledouble--digit percentages. digit percentages.
70% are paying70% are paying$3.00 per ft$3.00 per ft22
or more for energy.or more for energy.
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
Issue: Maintenance Costs Are RisingIssue: Maintenance Costs Are Rising
Labor Rates Continue to RiseLabor Rates Continue to Rise
Maintenance Staffs Continue to be CutMaintenance Staffs Continue to be Cut
Cost of Materials EscalateCost of Materials Escalate
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
Issue: IAQ Concerns Are IncreasingIssue: IAQ Concerns Are Increasing
More Awareness of IAQMore Awareness of IAQby Public & Mediaby Public & Media
Responding to IAQ ComplaintsResponding to IAQ ComplaintsIs Costly and Time ConsumingIs Costly and Time Consuming
Risk of Litigation Due to IAQ IssuesRisk of Litigation Due to IAQ Issues
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
A Solution…A Solution…
Installing Ultraviolet Germicidal Irradiation (UVGI) systemson new and existing HVAC equipment…
Will create significant savingsWill create significant savingsin total operating expenses in total operating expenses and create a cleaner saferand create a cleaner saferindoor environmentindoor environment
…for any Health Care facility by maintaining and/or restoringthe original design specifications of the HVAC system.
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
What isWhat isUVGI?UVGI? StrategiesStrategies
& Uses& Uses
Who needs it…Who needs it…What’s next…What’s next…
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
UltraViolet Germicidal Irradiation is…UltraViolet Germicidal Irradiation is…
nn A Proven ApplicationA Proven Application
nn StateState--ofof--thethe--ArtArt
nn Low CostLow Cost& Easy To Use& Easy To Use
nn Becoming A Standard Becoming A Standard for HVAC Systemsfor HVAC Systems
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
Case Study #1Case Study #1Tulsa, OK Tulsa, OK (1996 (1996 –– 2006) Office Building2006) Office Building
Four story 350,000 sq. ft.Four story 350,000 sq. ft.Application Information: Application Information:
• Coil Size: 58” high x 108” wide
• Fixture Location: 38” from coil
• Coverage: 2 rows of fixtures @ 4 fixtures / row
• Average UV-COn coil surface: 200 µW/cm²
• Lowest UV-C On coil surface: 50 µW/cm²
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
Case Study #1Case Study #1Tulsa, OK Tulsa, OK (1996 (1996 –– 2006) Office Building2006) Office Building
Four story 350,000 sq. ft.Four story 350,000 sq. ft.
Application Application ResultsResults
•• Reduced IAQ ComplaintsReduced IAQ Complaints
•• Reduced MaintenanceReduced Maintenance
•• Saved Significant EnergySaved Significant EnergyShut Down of Shut Down of Add’lAdd’l ChillerChiller(300 tons of cooling reduction)(300 tons of cooling reduction)
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
The Power of UVThe Power of UV
UV “Kills”UV “Kills”
100% Effective on…100% Effective on…Any Surface Any Surface (Coils, Filters & Processing)(Coils, Filters & Processing)
AllAll Living ThingsLiving Things& Destroys& Destroys
AllAll Organic MaterialOrganic Material
ViralViral
BacterialBacterial
MoldsMoldsAlso… Air & WaterAlso… Air & Water
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
Contamination, InfectionContamination, Infection
&&EpidemicEpidemic
Why Is This Important?Why Is This Important?Cleaner Air…Cleaner Air…
Healthier & Safer Indoor EnvironmentHealthier & Safer Indoor Environment
Results…Results…-- Less Sick DaysLess Sick Days-- Less ComplaintsLess Complaints-- Higher ProductivityHigher Productivity
Significantly reduces risks of…Significantly reduces risks of…
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
Why Is This Important?Why Is This Important?
Clean Surfaces…Clean Surfaces…Cooling Coils & Drain PansCooling Coils & Drain Pans
nn Control Organic GrowthControl Organic GrowthAt The SourceAt The Source
nn Extend Equipment LifeExtend Equipment Life
nn Lower Operating CostsLower Operating Costs
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
Cleaner AirCleaner Air
+ Clean Surfaces+ Clean Surfaces
Saves Saves $$$$$$$$$$Time, Hassle & Risk Time, Hassle & Risk
Why Is This Important?Why Is This Important?
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
What Is Ultraviolet Light?What Is Ultraviolet Light?
UVUV--AA (315nm (315nm -- 400nm)400nm)Black lights and tanning lamps,Black lights and tanning lamps,
harmful to eyesharmful to eyes
UVUV--BB (280nm (280nm -- 315nm)315nm)
Causes sunburn and skin cancerCauses sunburn and skin cancer
UVUV--CC (200nm (200nm -- 280nm)280nm)
Germicidal Germicidal -- Damages DNA in cellsDamages DNA in cells
254nm
UV is invisibleUV is invisible
The Light SpectrumThe Light Spectrum
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
What Is Ultraviolet Light?What Is Ultraviolet Light?
The Sun Makes All 3 Types of UVThe Sun Makes All 3 Types of UV
The Earth’s Ozone Layer Filters UVThe Earth’s Ozone Layer Filters UV--CCProtects Protects you, me and all living thingsyou, me and all living things
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
Any organic based cell exposed to UVAny organic based cell exposed to UV--C C Absorbs it at the molecular level...Absorbs it at the molecular level...
The organism is now destroyed & ineffective.The organism is now destroyed & ineffective.It is unable to reproduce & unable to infect.It is unable to reproduce & unable to infect.
It dies without effecting anything around it.It dies without effecting anything around it.
How It Works…How It Works…
When UVWhen UV--C enters a cellC enters a cell……
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
How Is UVHow Is UV--C Made?C Made?Today…Today…
UVUV--C is artificially made using specialized lampsC is artificially made using specialized lampsproducing UVproducing UV--C at 254nmC at 254nm
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
Useful Life of UVUseful Life of UV--C LampsC Lamps
High Mercury ContentMay Need To Be HandledAs Hazardous Waste
Hard Glass (High Output Only)
100%
80%
50%
8,760 Hours
UVUV--C LampsC Lamps
Intensity
Time
Low Mercury Content (3 – 8 mg)Less than most Fluorescent Lights
Soft Glass (Low, Normal & High Output)
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
How Much UVHow Much UV--CCDo I Need?Do I Need?
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
Killing Common “Bugs”Killing Common “Bugs”µwµw--sec/cm²sec/cm²
MoldsMoldsAspergillusAspergillus flavusflavus 99,00099,000AspergillusAspergillus nigerniger 330,000330,000
BacteriaBacteriaBacillus Bacillus anthracisanthracis 8,7008,700Bacillus Bacillus anthracisanthracis sporesspores 146,200146,200Escherichia coliEscherichia coli 6,6006,600LegionellaLegionella pneumophilapneumophila 12,30012,300Mycobacterium tuberculosisMycobacterium tuberculosis 10,00010,000Salmonella Salmonella typhityphi -- Typhoid Fever 7,000Typhoid Fever 7,000StaphylococusStaphylococus aureusaureus 6,6006,600VibrioVibrio comma comma -- CholeraeCholerae 6,5006,500
VirusVirusInfectious HepatitisInfectious Hepatitis 8,0008,000Influenza AInfluenza A 6,6006,600
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
Example:Example:
Calculating DosageCalculating DosageDOSAGEDOSAGE
Tech Note: A Dosage of 330,000 µw/cm2 is required to kill Mold
Determines EffectivenessDetermines Effectiveness
= = Intensity x TimeIntensity x Time
}}(Time)(Time)
(Intensity)(Intensity)
4,320,000 µw-sec/cm2((DosageDosage))
50 µw/cm2/sec.x 60 sec. x 60 min. x 24 Hours
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
Example:Example:
Calculating DosageCalculating Dosage
Another ExampleAnother Example
Tech Note: A Dosage of 330,000 µw/cm2 is required to kill Mold
}}(Time)(Time)
(Intensity)(Intensity)
864,000 µw-sec/cm2((DosageDosage))
10 µw/cm2/sec.x 60 sec. x 60 min. x 24 Hours
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
Where Does UV Work?Where Does UV Work?
Strategies to Use…Strategies to Use…
UVGIUVGIDOES NOT REPLACE DOES NOT REPLACE
FILTRATIONFILTRATION
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
Using UVGI Using UVGI -- Strategies…Strategies…
Used inUsed inIsolation Rooms, BioIsolation Rooms, Bio--Terror, etc.Terror, etc.
Very SpecializedVery Specialized
Goal: 99.9% Effective Kill on 1 PassGoal: 99.9% Effective Kill on 1 PassRequires High Output LampsRequires High Output Lamps
Budget Level: High Initial Cost & High Operating CostBudget Level: High Initial Cost & High Operating Cost
Moving Air StreamsMoving Air Streams
““Kill on the Fly”Kill on the Fly”
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
Locations of Organic Growth
Using UVGI Using UVGI –– Strategies…Strategies…
Why?Why?
RememberRememberDosageDosage……
The The more timemore timeyou have theyou have themore dosagemore dosageyou deliveryou deliver
Dosage Is TheDosage Is TheMost Important FactorMost Important Factor
Source Control Source Control -- “Capture & Kill”“Capture & Kill”
Budget Level: Low Initial Cost & Low Operating CostBudget Level: Low Initial Cost & Low Operating CostUses Normal & Low Output LampsUses Normal & Low Output Lamps
MostMostPopularPopular
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
Microbes will be partially intercepted and reproduce on the cooling coil and drain pan.UV-C will destroy them.
Where To Install UVWhere To Install UV--CCTypical InstallationsTypical Installations
Kill onthe Fly
Source Control
Filter Cooling Coil
Outside Air
May include spores & environmental
bacteria
Return AirMay include viruses, bacteria & internally generated spores
Supply Air
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
Case Study #2Case Study #2Florida Hospital Florida Hospital ––Goal Enhance Maintenance & Lower Operating CostsGoal Enhance Maintenance & Lower Operating Costs
BeforeBefore…… AfterAfter……UVGI is InstalledUVGI is Installed
Additional Benefit:Traditional coil cleaning is now obsolete.
Cleaner coils means lower operating costs too!
Mold, BioMold, Bio--Mass Mass & &
Other Microbial Growth Other Microbial Growth EliminatedEliminated
bybyControlling the SourceControlling the Source
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
UseUseOverkillOverkill
Sizing An HVAC SystemSizing An HVAC System
GuessGuess
MathematicalMathematical(Scientific)(Scientific)
ModelingModeling
??The Only The Only AnswerAnswer
is…is…
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
Getting Exactly What You NeedGetting Exactly What You NeedMathematical ModelingMathematical Modeling
Benefits of using scientific modeling…Benefits of using scientific modeling…Get EXACTLY what’s needed Get EXACTLY what’s needed
Generate Plan & Elevation DrawingsGenerate Plan & Elevation Drawings
Develop Coverage / Dosage GraphsDevelop Coverage / Dosage Graphs
Calculate Expected ROICalculate Expected ROI
Saves Time, Effort & MoneySaves Time, Effort & Money
Assures you get exactlyAssures you get exactlywhat you needwhat you need
to do the job rightto do the job right
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
Who Needs & Uses UV?Who Needs & Uses UV?
Educational InstitutionsEducational InstitutionsUniversities & CollegesPublic SchoolsPrivate Schools
Hospitals / Health CareHospitals / Health CareLocal HospitalsRegional Medical CentersNursing FacilitiesDoctor’s OfficesSurgery CentersPsychiatric FacilitiesOutpatient Medical Facilities
Gov’tGov’t Facilities,Facilities, Office Buildings, Office Buildings, & Facility & Facility MgmMgm’’tt CompaniesCompanies
Common Needs:Common Needs:Lower Operating CostsLower Operating Costs
& Better IAQ& Better IAQ
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
Case Study #3Case Study #3
Neonatal Intensive Care UnitNeonatal Intensive Care UnitTaskTask: : Compare the serial bacterial and fungal cultureson HVAC system with tracheal aspirate (TA) from intubated infants
FindingsFindings: : Microbes isolated from HVAC system wereidentical to those in NICU and TA
nPseudomonas, Klebsiella,nBacillus and Serratia
Action: Action: Installed UVGI lamps on AHU serving area
Results: Results: After UVGI was installed
Total microbial loadmarkedly decreased
Source: Dr. C. Leach, Dr. R. Ryan – SUNY Buffalo
ChildrenChildren’’s Hospital s Hospital -- SUNY BuffaloSUNY Buffalo
Patients did notPatients did notget sick as often.get sick as often.
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
““This device significantly reducedThis device significantly reducedmicrobial contamination in ourmicrobial contamination in ourneonatal intensive care unit, andneonatal intensive care unit, andspared our tiny patients fromspared our tiny patients fromexposure to main infection causingexposure to main infection causingorganisms.organisms.””(Dr. Rita Ryan, M.D.)(Dr. Rita Ryan, M.D.)
Case Study #3 (continued)Case Study #3 (continued)
Source: Dr. C. Leach, Dr. R. Ryan
UVGI Reduces Microbial ContaminationUVGI Reduces Microbial Contamination
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
427.8
608.2
232
16
175.1152.4
326
0 0.70
100
200
300
400
500
600
700
-18 -6 -3 -1 3 10 21 28 36 46 65 84 101 141 162 221 253 297Days of UVGI
HV
AC
- C
FU
0
1
2
3
4
5
TA
Mic
roba
l Loa
d
HVAC Tracheal Aspirate Poly. (Tracheal Aspirate )
Case Study #3 (continued)Case Study #3 (continued)
Source: Dr. C. Leach, Dr. R. Ryan
UVGI On
UVGI Reduces Microbial ContaminationUVGI Reduces Microbial Contamination
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
Determining UVGI EffectivenessDetermining UVGI Effectiveness“Kill on the Fly”“Kill on the Fly”
Scientifically Model for the “Bug” Scientifically Model for the “Bug”
Do testing with a similar nonDo testing with a similar non--harmfulharmfulmicrobe on actual systemmicrobe on actual systemnn Requires special tools and third party resourcesRequires special tools and third party resources
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
Determining UVGI EffectivenessDetermining UVGI EffectivenessSource Control Source Control –– “Capture & Kill”“Capture & Kill”
Calculate Expected ROI Calculate Expected ROI
Take Before & After (~30 Take Before & After (~30 -- 45 Days)…45 Days)…nn Surface Samples using Petri DishesSurface Samples using Petri Dishes
No growth means no mold, bacteria, or virus on surfaceNo growth means no mold, bacteria, or virus on surface
nn System Performance TestingSystem Performance TestingPressure drop expressly across the cooling coilPressure drop expressly across the cooling coilCoil CFM and note whether *VAV or constant volume.Coil CFM and note whether *VAV or constant volume.Coil entering and leaving wet and dry bulb Coil entering and leaving wet and dry bulb temperatures.temperatures.Chilled water (coolant) temperature and volume.Chilled water (coolant) temperature and volume.Coolant temperature differentials (at the coil).Coolant temperature differentials (at the coil).Fan RPM.Fan RPM.Fan motor amp draw.Fan motor amp draw.
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
Application Information: Application Information:
• DX & CW CoilsCoil Size: 57” high x 86” wide, 8 rows deep
• 17,529 CFM
• Coverage: 2 rows of fixtures @ 3 fixtures / row
• Average UV-COn coil surface:198 µW/cm²
• Lowest UV-C On coil surface: 94 µW/cm²
Case Study #4Case Study #4St. Michael’s HospitalSt. Michael’s Hospital –– Texarkana, TX (2004)Texarkana, TX (2004)
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
Application Application Results Results (Continued)(Continued)
Case Study #4Case Study #4St. Michael’s HospitalSt. Michael’s Hospital –– Texarkana, TX (2004)Texarkana, TX (2004)
Application Application ResultsResults
•• Reduced MaintenanceReduced Maintenance
•• Saving Significant Energy Saving Significant Energy
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
Application Application Results Results (Continued)(Continued)
Case Study #4Case Study #4St. Michael’s HospitalSt. Michael’s Hospital –– Texarkana, TX (2004)Texarkana, TX (2004)
Application Application ResultsResults
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
Application Application Results Results (Continued)(Continued)
Case Study #4Case Study #4St. Michael’s HospitalSt. Michael’s Hospital –– Texarkana, TX (2004)Texarkana, TX (2004)
Application Application ResultsResults
Less ThanLess Than1 Year Payback1 Year Payback
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
Summary
Initial Payback On Project: 7.8 Months
Annual Energy Savings: $3,634 / Yr.
Total Annual Savings: $3,924 / Yr.
1st - 5 Year Savings: $17,070
10 Year Savings: $36,690
Application Application Results Results (Continued)(Continued)
Case Study #4Case Study #4St. Michael’s HospitalSt. Michael’s Hospital –– Texarkana, TX (2004)Texarkana, TX (2004)
Application Application ResultsResults
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
UltraViolet Germicidal IrradiationUltraViolet Germicidal IrradiationUVGI AdvantagesUVGI Advantages
10. Fully tested and validated10. Fully tested and validatedVerified by University PhD’s, 3rd party researchers & EPAVerified by University PhD’s, 3rd party researchers & EPA
9. Independently Certified by Leading Organizations9. Independently Certified by Leading OrganizationsUnderwriters Laboratories (UL/C Listed) & CEUnderwriters Laboratories (UL/C Listed) & CEAcademic ResearchersAcademic Researchers
8. Produces no ozone, gases, or other noxious fumes8. Produces no ozone, gases, or other noxious fumesWill not harm building occupants, equipment or furnishingsWill not harm building occupants, equipment or furnishings
7. Works in New & Existing HVAC Systems7. Works in New & Existing HVAC SystemsResults starting from day oneResults starting from day one
Top 10 Reasons to use UVGI
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
UVGI AdvantagesUVGI Advantages6. Low, Normal and High Output UV6. Low, Normal and High Output UV--CC
Adaptable and easy to use for many applications or needsAdaptable and easy to use for many applications or needsCan meet maintenance, IAQ & safety needsCan meet maintenance, IAQ & safety needs
5. Low initial cost for installation5. Low initial cost for installationVery Affordable ($.15 Very Affordable ($.15 -- $.25 /$.25 /cfmcfm))
4. Cost effective and affordable to operate4. Cost effective and affordable to operateLow energy usageLow energy usage
3. Easy Installation3. Easy InstallationOEM or Field InstallationOEM or Field Installation
2. Minimizing Risks2. Minimizing RisksSource Control Source Control ––Controls propagation of harmful biological contaminatesControls propagation of harmful biological contaminatesat the sourceat the source
(Cont.)(Cont.)
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
ALTRUALTRU--V AdvantagesV Advantages
And…And…The #1 Reason for The #1 Reason for Using UVGI is…Using UVGI is…
(Cont.)(Cont.)
Everyone will love me Everyone will love me because they feel better because they feel better and…and…We’re saving a lot of We’re saving a lot of money!money!
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
What’s Next?What’s Next?Decide What Strategy You Will UseDecide What Strategy You Will UseSource Control or “Kill on the Fly”Source Control or “Kill on the Fly”depending on the usedepending on the useCreate A Case Study #:__________ (Your Facility)Create A Case Study #:__________ (Your Facility)
Install UVGI on your dirtiest coilInstall UVGI on your dirtiest coil(Take pictures, surface sample or pressure drops)(Take pictures, surface sample or pressure drops)
Review the results in 30 Review the results in 30 –– 45 Days45 Days
Enjoy…Enjoy…Low MaintenanceLow MaintenanceSignificant Savings Significant Savings
& & A Cleaner Indoor EnvironmentA Cleaner Indoor Environment
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
“If a large number of (facilities) were modified…
A number of airborne respiratory A number of airborne respiratory diseases could be eradicated diseases could be eradicated
…by interrupting the transmission cycle. Reducing the transmission rate sufficiently would... Halt epidemics in their path.”
Dr. Dr. WladyslawWladyslaw Jan Kowalski, Architectural EngineerJan Kowalski, Architectural EngineerPennsylvania State University’s Indoor Environment CenterPennsylvania State University’s Indoor Environment Center
Closing ThoughtsClosing Thoughts
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
“Installation of UVGI in most (facilities)…
Could resolve workCould resolve work--related symptoms in related symptoms in about 4 million employeesabout 4 million employees,,
…caused by (germ) contamination of heating, ventilation, and air…caused by (germ) contamination of heating, ventilation, and airconditioning systems.” conditioning systems.”
Dr. Dick Dr. Dick MenziesMenzies, Montreal Chest Institute, Montreal Chest Instituteat McGill University in Montreal, Canada. at McGill University in Montreal, Canada.
Closing ThoughtsClosing Thoughts
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
GSA RequirementGSA Requirement“UVC Emitters/Lamps“UVC Emitters/Lamps:: Ultraviolet light (C band) emitters/lamps
Shall be incorporated downstream of all Shall be incorporated downstream of all cooling coils and above all drain panscooling coils and above all drain pans…to control airborne and surface microbial growth and transfer. Applied fixtures must be specifically manufactured for this purpose. Safety interlocks/features shall be provided to limit hazard to operating staff.”
HVAC Systems and Components,HVAC Systems and Components, Section Five, SubSection Five, Sub--Section 5.9, Page 143, Section 5.9, Page 143, Revised March 2003 Revised March 2003 –– PBSPBS--P100P100
Closing ThoughtsClosing Thoughts
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
“I specify UVC in every HVAC system I design…
Because I know it worksBecause I know it worksand eliminates my risk of litigationand eliminates my risk of litigation,,
…in mold and other biological contamination cases involving …in mold and other biological contamination cases involving the HVAC system.” the HVAC system.”
Consulting / Design EngineerConsulting / Design EngineerIowa, USAIowa, USA
Closing ThoughtsClosing Thoughts
Using UltraViolet Light in HVAC Systems – Ft. Wayne ASHRAE Seminar – July 25, 2006
Questions?Questions?