UV Germicidal System
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Transcript of UV Germicidal System
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UV Germicidal Systems
PR0DUCT CATALOG
A U V s o l u t i o n f o r e v e r y a p p l i c a t i o n
Choose UV Systems for: healthier air
energy savings
reduced maintenance
Clean coils in rooftop units or smaller AHUs
Clean coils in AHUs
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P a g e 2 D R I S T E E M U V G e r m i c i d a l S y s t e m s
W h y c l e a n c o i l s w i t h U V C l i g h t ?
1 . H e a l t h i e r a i r
Mold in buildings is a known health threat. Mold and other
microorganisms grow on damp cooling coils and in drain pans.Air flowing through coils and across drainpans spreads mold spores and mycotoxinsthroughout buildings where they can landand multiply on moist surfaces. To do allyou can to eliminate this threat, kill moldand other microorganisms on cooling coilsand drain pans with ultraviolet light in theC bandwidth (UVC). Continuous UVC exposure, provided byDRISTEEMs UV Germicidal Systems, keeps coils and drain pansclean and keeps mold spores out of the airstream.
2 . S a v e e n e r g y
A coil with very small amounts of mold growth can significantlyblock airflow and decrease coil thermaltransfer. The coil may look clean to thenaked eye, but there still can be enoughmold coating a cooling coil to reducesystem efficiency. As mold growth on acoil increases, energy costs increase due toreduced coil efficiency.
3 . R e d u c e m a i n t e n a n c e
Cleaning coils by hand exposes maintenance staff to strongchemicals and mold mycotoxins, which can cause severe healthproblems. Pressure-washing coils can push mold into the coilinterior, reducing coil function or requiringcoil replacement. Removing coils tosubmerge them until clean sometimesworks; however, it is a very expensive wayto clean coils.
Theres a much easier and more effectiveway to keep coils clean.
UV Germicidal Systems clean dirty coils and drain pans and keepthem continuously clean. Just replace the lamps annually andeliminate the periodic need for cleaning toxic coils by hand. UVGermicidal Systems applied to new coils maintain operation at peakperformance.
Where should you install UVC?Mold spores are everywhere in our homesand work places. We co-exist comfortablywith mold when their populations aresmall; however, when mold spores f ind afavorable environment, they multiply tothe point where they can cause healthproblems.
To multiply, mold spores need moisture anda food source. While there are many placeswithin a building where mold can grow,mold thrives on damp cooling coils with
dust as its food source.Good filtration helps, and prevents somemold growth, but will not eliminate it.
And, its extremely important to kill moldon coils to prevent spores from spreadingthroughout the building via the airstream.This is why we recommend installing UVClights to illuminate all cooling coils.
Q:What types of buildings need a UVGermicidal System?
A:Any building with a damp or wetcooling coil.
Coil cleaned at these points in time
Peakcoil
efficiency
Reducedcoilefficiency
Coil loses efficiencyin between manual cleanings
Figure 2-1:Coil efficiency and manual cleaning
Immediately after a coil is cleaned manuallyit begins to lose efficiency due to moldgrowth. DRISTEEMs UV Germicidal Systemskeep clean coils continuously clean,allowing coils to continuously operate atnear peak efficiency.
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D R I S T E E M U V G e r m i c i d a l S y s t e m s P a g e 3
R e l y o n D R I S T E E M f o r . . .
DRISTEEM performance and reliability
Customers all over the world rely on DRISTEEM performance
and reliability. Proven in thousands of installations, youllfind DRISTEEM humidifiers at NASA, high-tech facilities,world-famous museums, and the White House. Now, thatsame engineered performance and reliability is available inDRISTEEMs UV Germicidal Systems.
Solutions that precisely fit your application
DRISTEEM has a UV solution for every cooling coilapplication, including:
Large AHUs Small AHUs Packaged rooftop units
From systems installed right out of the box to systems designedfor a uniquely sized AHU, youll find the right UV solution atDRISTEEM.
Efficient operation
An effective ultraviolet treatment is a factor of intensity aswell as exposure time. Rely on DRISTEEMs UV GermicidalSystems to provide the required amount of ultraviolet light tokill microorganisms on coils. Polished aluminum reflectorson Model UVR enhance this efficiency by focusing ultravioletenergy at the coil and drain pan.
Easy installation and servicing
DRISTEEM UV Germicidal Systems are easy to install andservice. Model UVR is pre-assembled and ready to mount onsupport channels. Just connect power to the terminal strips.Other models ship with mounting hardware. Model UVRfixtures rotate away from the coil for easy service access (seeFigure 4-1).
M o r e a b o u t m o l d
Mold spores are everywhere and grow where there is water and food such as dust, paper
or wood. In buildings, molds thrive on dark, damp cooling coils and on moist paper orwood building materials such as wall board.
All molds can cause allergic reactions in humans and many produce mycotoxins.
Mycotoxins can be found in air, mold spores, within mold itself, and in the material where
mold is growing. Some common indoor molds such as aspergillus and penicillium can
cause a severe, sometimes toxic, reaction in humans. At low normal background levels,
mold is only a minor issue for many. Unmanaged, mold can be a serious health issue.
Ultraviolet light (C band) emitters
shall be incorporated downstream of
all cooling coils and above all drain
pans to control airborne and surface
microbial growth and transfer.
U.S. Standard for Government Buildings
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P a g e 4 D R I S T E E M U V G e r m i c i d a l S y s t e m s
Model UVRInternal mount rack system
U V G e r m i c i d a l S y s t e m s o v e r v i e w
Lamp fixture rotates away from coilfor service access (see Figure 4-1)
Remove quickrelease pin torotate fixture
Ballast
Lamp
Reflector
Electrical enclosureTerminal strip
Supportchannel
Model selection
This system can be configured to provide completeillumination of coils 4'-12' (1.2 m - 3.7 m) wide.See Pages 6-8 for more information.
Keeping coils sanitary throughcleaning and the application of
chemicals and/or UV lights is part
of a system-wide approach, which
can prevent spores from amplifying
in the heating and air conditioning
system. ACHR News
Figure 4-1:Model UVR rotating lamp fixture
In operating mode (top), Model UVRs lampfixture is positioned to directly illuminatethe coil. In service mode (bottom), the lampfixture rotates 90 away from the coil foreasy service access. To rotate the lampfixture, simply pull the quick release pinfrom the hinged bracket.
Lamp fixture rotates90 away from coilfor easy lampreplacementaccess
Lamp fixture inoperating mode
Lamp
Reflector
Reflector
Quick-release pin
Quick-release pin
Quick-releasepinremoved torotate fixture
Lamp fixturein service mode
OM-6355
Convenientaccess to ballast
Application
For cleaning large AHU coils 4'-12' (1.2 m - 3.7 m) wide Completely assembled and ready to mount on support
channels; just connect power to the terminal strips.Note: Support channels are provided by installer, or maybe ordered as a DRISTEEM option.
Rotating lamp fixture and quick-release pin allow veryeasy access for maintenance (see Figure 4-1)
Polished aluminum reflector focuses UV energy
120, 208, 240, and 277 VAC available voltages
OM-1130
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D R I S T E E M U V G e r m i c i d a l S y s t e m s P a g e 5
Application
For cleaning coils in packaged rooftop units Weather-resistant NEMA-4 housing 24" (610 mm; Model UV-W-1-24) and
32" (813 mm; Model UV-W-1-32) lamps available NEMA-4 housing door interlock safety switch 120 to 277 VAC auto adjusting variable voltage ballast Electrical usage: 60 watts for Model UV-W-1-24,
75 watts for Model UV-W-1-32
Application
For cleaning coils in packaged rooftop units or smallair handlers
Internally mounted; requires no exterior penetrations 18" (458 mm) lamp 120 to 277 VAC auto adjusting variable voltage ballast Electrical usage: 55 watts
U V G e r m i c i d a l S y s t e m s o v e r v i e w
Coil area illumination by modelModel
number
Coil area illumination Lamp length
in2 ft2 m2 inches mm
UV-W-1-24 1008 7.0 0.65 24 610
UV-W-1-32 1296 9.0 0.84 32 813
Note: Combine fixtures to completely illuminate coil and drain pan.See Page 10 for more information.
Coil area illumination by modelModel
number
Coil area illumination Lamp length
in2 ft2 m2 inches mm
UV-I-1-18 792 5.5 0.5 18 458
Note: Combine fixtures to completely illuminate coil and drain pan.See Page 9 for more information.
Model UV-I-1-18Internal mount with mounting hardware
Fixture with weather resistantNEMA-4 housing
LampCooling coil
24" (610 mm) lamp32" (813 mm) lamp
NEMA-4 housing
18" (458 mm) lamp
Mounting hardware(provided by DRISTEEM)
Blower
Cooling coil
UV fixture
Models UV-W-1-24 and UV-W-1-32External mount with weather-resistant housing
Blower
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P a g e 6 D R I S T E E M U V G e r m i c i d a l S y s t e m s
Components (see Figure 6-1)
1. Rotating lamp fixture
The lamp fixture rotates away from the coil,allowing easy access for lamp replacement(see also Figure 4-1 on Page 4).
2. Hinge with quick release pin
To rotate the lamp fixture, simply pull thequick release pin from the hinged bracket(see also Figure 4-1).
3. Ballast
Program-start ballast provides precise lampfilament preheat, optimizing lamp life.Operates with the following voltages: 120,208, 240, and 277 VAC.
4. Lamp
High output ultraviolet (UVC) lamp killsmold, bacteria, and all other microorganismson coils and drain pans.
5. Reflector
Polished aluminum reflector focuses UVCenergy.
6. Terminal strip
The terminal strip, located behind the easilyremoved key-holed cover, provides accessfor quick field electrical connections.
7. NEMA-12 electrical enclosure
The electrical enclosure houses an electronic
timer that monitors lamp usage andilluminates an indicator light after 9,000hours of use to signal required lampreplacement. A dry contact closes when thelamps need changing and sends a signalto a remote indicator light or buildingmanagement system (provided by installer).
8. Support channel (optional)
The lamp fixture attaches easily to standardhole-punched channel supports, which canbe provided by DRISTEEM if requested,shipped loose.
9. Door interlock safety switch (optional;
not shown)Recommended for installation on anydoor with access to a UVC lamp, the doorinterlock safety switch turns off the UVClamp when the door it is installed on opens,preventing accidental exposure. The switchrequires manual reset.
M o d e l U V R :C o m p o n e n t s a n d c o n f i g u r a t i o n s
Figure 6-1:Model UVR components
1
2
3
4
5
6
8
Model UVR configurations
Model UVR Germicidal Systems are applied to chilled water orrefrigerant cooling coils.
Available voltages for Model UVR include 120, 208, 240, and 277
VAC.Model UVR fits inside unobstructed duct widths from 48" to 144"(from 1219 mm to 3657 mm); and fits inside unobstructed ductheights from 24" to 180" (from 610 mm to 4572 mm). Note: Contactyour DRISTEEM representative for ordering instructions to installaround obstructions.
Model UVR can be ordered with an optional door interlocksafety switch (manual reset). Note: A safety switch is highlyrecommended.
Model UVR can be ordered with optional standard hole-punchedchannel supports shipped unassembled in lengths equal to height of
duct minus 1" (25 mm).
For custom solutions such as pre-assembled systems, applicationsrequiring custom UV illumination intensities, or stainless steelcomponents, contact your DRISTEEM representative.
7
OM-1130
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D R I S T E E M U V G e r m i c i d a l S y s t e m s P a g e 7
Table 7-1:Model UVR dimensions
Dimension Description Inches (mm)
AOverall width
47.75" (1213)minimum to 119.75"(3042) maximum in 6"(152) increments
B
Center-to-center width ofsupport channelmounting holes
44.625" (1133)minimum to 116.625"(2962) maximum in 6"(152) increments
CActive lamparea width
41.75" (1060)minimum to 113.75"(2889) maximum in 6"(152) increments
M o d e l U V R :D i m e n s i o n s a n d p l a c e m e n t g u i d e l i n e s
Figure 7-1:Model UVR dimensions
OM-1132
Reflector
Elevation view Mountingbrackets
Side view
A
2.1" (53 mm)
B
Lamp fixtureTop view
4.46"(113 mm)
Note:
Electrical enclosure dimensions:10" (254 mm) high 8" (203 mm) wide 6" (152 mm) deep
C
Installing Model UVR
Install Model UVR on the coils downstream side 12" to 24"(305 mm to 610 mm) from the coil (12" [305 mm] recommended).Placement on the coils downstream side produces the most
effective results because the downstream side tends to be the wetterside, enabling mold growth. In addition, the coils downstream sidetypically has more access room, allowing easier servicing.
Notes:
Obstructions between lamps and the coil will block illuminationand reduce Model UVRs effectiveness.
Contact DRISTEEM for instructions when placing a dispersionunit downstream of a UV Germicidal System.
Figure 7-2:Installing Model UVR in an AHU airflow
OM-1134
Top viewCooling coil
Airflow
Model UVR Heating coil
Position Model UVR with lamp(s)horizontal and facing cooling coil
12" (305 mm) recommended;maximum 24" (610 mm)
UV lamp
11.75"(298 mm)
8.76"(223 mm)
Figure 7-3:Dimensions of support channel foot
OM-6354
1.6875" (43 mm)
3.5"(89 mm)
9.1875"(233 mm)
3.875"(98 mm)
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P a g e 8 D R I S T E E M U V G e r m i c i d a l S y s t e m s
M o d e l U V R :A m p d r a w s , f i x t u r e s p a c i n g
Table 8-2:Model UVR fixture row vertical spacing
AHU, duct, or coil height Number offixture rows
Spacing between fixture rows (S)S = AHU or duct height number of fixture rows
Spacing between fixture andAHU/duct floor or ceiling (S)
ft m inches mm inches mm
2 to 5 0.6 to 1.52 1 Center vertically Center vertically
5 to 6 1.52 to 1.83 2 30 to 36 762 to 914 15 to 18 381 to 457
6 to 7 1.83 to 2.13 2 36 to 42 914 to 1067 18 to 21 457 to 533
7 to 8 2.13 to 2.44 2 42 to 48 1067 to 1219 21 to 24 533 to 610
8 to 9 2.44 to 2.74 2 48 to 54 1219 to 1372 24 to 27 610 to 686
9 to 10 2.74 to 3.05 2 54 to 60 1372 to 1524 27 to 30 686 to 762
10 to 11 3.05 to 3.35 3 40 to 44 1016 to 1118 20 to 22 508 to 559
11 to 12 3.35 to 3.66 3 44 to 48 1118 to 1219 22 to 24 559 to 610
12 to 13 3.66 to 3.96 3 48 to 52 1219 to 1321 24 to 26 610 to 66013 to 14 3.96 to 4.27 3 52 to 56 1321 to 1422 26 to 28 660 to 711
14 to 15 4.27 to 4.57 3 56 to 60 1422 to 1524 28 to 30 711 to 762
Notes:Center entire assembly within coil height and width.Follow fixture row spacing guidelines in this table; however, positioning does not need to be exact.If AHU or duct height is significantly more than coil height, use coil height for calculating S.
Figure 8-1:Typical installation, Model UVR (elevation view)
OM-1135
Coilwidth
AHU or duct
AHU or ductwidth
Coilheight
AHU or duct height
Space between AHU
or duct ceiling andfixture row (S)
Space betweenfixture rows (S).See Table 8-2
Space between AHU orduct floor andfixture row (S)
Table 8-1:Amps per fixture row by lamp fixture width
Supplyvoltage(single-phase)
Lamp fixture width in ft (m)* Amps*per
electrical
enclosure
4.0(1.22)
4.5(1.37)
5.0(1.52)
5.5(1.68)
6.0(1.83)
6.5(1.98)
7.0(2.13)
7.5(2.29)
8.0(2.44)
8.5(2.59)
9.0(2.74)
9.5(2.90)
10.0(3.05)
10.5(3.20)
11.0(3.35)
11.5(3.50)
12.0(3.66)
120 1.014 1.208 1.229 1.423 1.638 1.639 2.027 2.027 2.242 2.457 2.457 2.846 2.846 2.846 2.652 2.652 3.061 0.210
208 0.574 0.680 0.702 0.808 0.936 0.936 1.148 1.148 1.276 1.404 1.404 1.616 1.616 1.616 1.510 1.510 1.744 0.121
240 0.501 0.604 0.604 0.707 0.810 0.803 1.009 1.009 1.112 1.215 1.215 1.414 1.414 1.414 1.311 1.311 1.517 0.105
280 0.439 0.523 0.532 0.616 0.710 0.710 0.878 0.878 0.971 1.064 1.064 1.233 1.233 1.233 1.149 1.149 1.326 0.091
* Amp values listed by fixture width are for one row only. To calculate total Amps per rack system, multiply the Amp value by the number of fixture rows and addamperage for one electrical enclosure. For example: Total amps for a 120 V system with three 12-foot rows = (3 3.061) + 0.21 = 9.393 Amps.
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D R I S T E E M U V G e r m i c i d a l S y s t e m s P a g e 9
M o d e l U V - I - 1 - 1 8 :D i m e n s i o n s , i n s t a l l a t i o n g u i d e l i n e s
Figure 9-2:Model UV-I-1-18
Figure 9-1:Typical installation, Model UV-I-1-18
Figure 9-3:Model UV-I-1-18 components
Figure 9-4:Model UV-I-1-18 dimensions
Table 9-1:Guidelines for number of fixtures by coil area
Coil areaRecommended
number of fixtures
in2 ft2 m2 Model UV-I-1-18
750 5.2 0.48 1
1000 6.9 0.64 2
1250 8.7 0.80 2
1500 10.4 0.97 21750 12.2 1.13 3
2000 13.9 1.29 3
2250 15.6 1.45 3
2500 17.4 1.62 4
2750 19.1 1.77 4
3000 20.8 1.93 4
3250 22.6 2.10 5
3500 24.3 2.25 5
Notes: Model UV-I-1-18 covers approximately 792 in2 (5.5 ft2, 0.5 m2) of coil area. Use this table as a guideline only. The most important requirement for an effective UV
Germicidal System installation is complete coil and drain pan illumination. Install fixturesas required to fully illuminate the coil and drain pan. The above guidelines are based on the following assumptions:
UV lamps installed 3 to 12 inches (76 mm to 305 mm) from coil Coil thickness in the range of 2 to 4 inches (51 mm to 102 mm)
As distance from the coil increases, light intensity illuminating the coil decreases,requiring more time for organisms to be killed by UV light.
Coolingcoil
Model UV-I-1-18
Mountinghardware as shown
provided byDRISTEEM
Blower
Wiring access cover
Lamp socket
Lamp
Mountingbrackets
18.25" (404 mm)
4.50" (114 mm)
17" (432 mm)
3"(76 mm)
2.77"(70 mm)
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P ag e 1 0 D RI ST EE M U V G er mi ci da l S ys te ms
BlowerLampCooling coil
Fixture base and cabinet
Figure 10-1:Models UV-W-1-32 and UV-W-1-24
M o d e l s U V - W - 1 - 2 4 a n d U V - W - 1 - 3 2 :D i m e n s i o n s , i n s t a l l a t i o n g u i d e l i n e s
Figure 10-4:Typical installation
OM-1131
Figure 10-2:Components
Ballast
Fuse
Lamp retainingbracket
Lamp base
Lamp socket
Lamp
Internal switch
Figure 10-3:Dimensions
OM-1133
Side view
Front view
10" (254 mm)
4.25" (108 mm)
23" (584 mm)or
32.25" (819 mm)
8"(203 mm)
Table 10-1:Guidelines for number of fixtures by coil area
Coil area Recommended number of fixtures
in2 ft2 m2Model UV-W-1-24
24" lampModel UV-W-1-32
32" lamp
750 5.2 0.48 1 11000 6.9 0.64 1 1
1250 8.7 0.80 2 1
1500 10.4 0.97 2 2
1750 12.2 1.13 2 2
2000 13.9 1.29 2 2
2250 15.6 1.45 3 2
2500 17.4 1.62 3 2
2750 19.1 1.77 3 3
3000 20.8 1.93 3 3
3250 22.6 2.10 4 3
3500 24.3 2.25 4 3Notes: Model UV-W-1-24 covers approximately 1008 in2 (7 ft2, 0.65 m2) of coil area. Model UV-W-1-32 covers approximately 1296 in2 (9 ft2, 0.87 m2) of coil area. Use this table as a guideline only. The most important requirement for an effective UV
Germicidal System installation is complete coil and drain pan illumination. Install fixturesas required to fully illuminate the coil and drain pan.
The above guidelines are based on the following assumptions: UV lamps installed 3 to 12 inches (76 mm to 305 mm) from coil Coil thickness in the range of 2 to 4 (51 mm to 102 mm) inches
As distance from the coil increases, light intensity illuminating the coil decreases,requiring more time for organisms to be killed by UV light.
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D R I S T E E M U V G e r m i c i d a l S y s t e m s P a g e 1 1
S p e c i f i c a t i o n s
Model UVR
UV Germicidal System shall kill bacteria, fungi, and mold thatcan grow on the cooling coil and drain pan.
UV Germicidal System shall be factory-assembled and tested.It shall consist of a galvanized steel hinged rotating housing toallow easy access for maintenance, power source, lamp sockets,lamp, reflector, and control cabinet. All components shall beconstructed to withstand typical HVAC environments.
Unit shall be mounted to standard hole-punched channelsupports and secured within air handling unit.
The UV ballast shall be an electronic, high frequency, program-type with auto-adjusting, variable voltage, high output ballast
with a voltage range of 120-277 VAC, 50/60 Hz, high outputlamp, fuse protection, and mounting flanges.
Lamp connectors shall be circline-type sockets and constructedof a UVC-resistant polycarbonate.
Lamp shall be a high output, hot cathode, T5 diameter, four-pin single-ended type that produces germicidal UV-C energy at254 nm. Each lamp shall produce the specified output at 500 fpmand air temperatures of 55 F (13 C).
Reflector shall be constructed of specular polished aluminum tomaximize usage of all ultraviolet energy.
The unit shall have terminal strips for quick field electricalconnections.
UV Germicidal System shall be complete with NEMA-12electrical housing, shipped loose, containing: power block, 24volt step down transformer, electronic timer indicating hoursof usage, relay for dry contact for remote indication to replacelamps, door mounted indication lights for power (red) and
replace lamps (green).
Control option: The unit shall have a door interlock safety switch,auto-off, manual reset. The unit shall not produce ozone. The unit shall be independently tested to verify conformance to
ETL per UL Standard 1598. The unit shall be EPA listed. Unit warranty shall be two years; the lamp warranty shall be one
year.
Model UV-I-1-18
Ultraviolet Germicidal System shall kill bacteria, fungi, and moldthat can grow on the cooling coil.
Unit shall be designed for installation inside a rooftop HVAC
unit.
Germicidal UV-C energy measured at a distance of 1 meterperpendicular to the center of the lamp shall be greater than 270W/cm2 at 253.7 nm when measured in a galvanized steel ductwith 70 F air moving at 400 fpm.
Germicidal UV-C energy measured at a distance of 18 inchesperpendicular to the center of the lamp shall be greater than 560W/cm2 at 253.7 nm when measured in a galvanized steel ductwith 70 F air moving at 400 fpm.
Unit shall be complete with stainless steel housing containing:auto-adjusting, variable voltage, high output ballast with a
voltage range of 120-277 VAC, 50/60 Hz, high output lamp, fuse
protection, and mounting flanges. Unit shall be housed completely inside of the HVAC equipment
and not require any type of penetration of the equipmentcasing.
Unit shall incorporate electrical knockouts on both ends of theunit to accommodate convenient supply wiring.
Unit shall not exceed 55 watts. Unit shall not produce ozone. The unit shall ship complete with mounting hardware to assist
in installation. Lamp life shall be one year when operated continuously. The unit shall be EPA listed. Unit shall be UL and C-UL classified. Unit warranty shall be two years; the lamp warranty shall be one
year.
Models UV-W-1-24 and UV-W-1-32
Ultraviolet Germicidal Lamps shall kill bacteria, fungi, andmold that can grow on the cooling coil.
Unit shall be designed for installation on a rooftop HVAC unit. Germicidal UV-C energy measured at a distance of 1 meter
perpendicular to the center of the lamp shall be greater than 270W/cm2 at 253.7 nm when measured in a galvanized steel ductwith 70 F air moving at 400 fpm.
Germicidal UV-C energy measured at a distance of 18 inchesperpendicular to the center of the lamp shall be greater than 560W/cm2 at 253.7 nm when measured in a galvanized steel ductwith 70 F air moving at 400 fpm.
Unit shall be complete with NEMA-4 electrical housing
containing: auto-adjusting, variable voltage, high output ballastwith a voltage range of 120-277 VAC, 50/60 Hz, high outputlamp, fuse protection, and NEMA-4 housing door interlocksafety switch.
NEMA-4 electrical housing shall be complete with mountingflanges, door weather gasket, and surface gasket to seal the unitto the HVAC equipment.
Unit shall incorporate an electrical knock-out on the sameside of the box that the lamp protrudes from to accommodatesupply wiring from within the rooftop unit without requiring anadditional electrical penetration in the electrical housing.
The unit shall allow for the installation of weather resistantconduit fittings on any side of the electrical housing whenwiring is external to the HVAC equipment.
Unit electrical shall not exceed 60 watts for 24" units or 75 wattsfor 32" units.
Unit shall allow for annual service to be conducted from the
outside of the rooftop unit. Unit shall produce no ozone. Unit shall be UL and C-UL classified. Lamp life shall be one year when operated continuously. The unit shall be EPA listed. Unit warranty shall be two years; the lamp warranty shall be one
year.
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Important safety statement
DRISTEEMs UV Germicidal Systems use lampsthat emit ultraviolet light in the UVC bandwidthwhen energized. Direct or reflected exposure toUVC light can cause severe bodily injury and/orburns to eyes and skin. To reduce personalinjury risk, install UV Germicidal Systems only inapplications providing adequate protection toarea occupants. To prevent accidental exposure,DRISTEEM strongly recommends installingdoor interlock safety switches on all doorsaccessible to UV lamps. More detail about safetyprecautions is in the UV Germicidal SystemsInstallation, Operation, and Maintenance Manual.
DRISTEEM CorporationAn ISO 9001:2000 certified corporationand a subsidiary of Research ProductsCorporation
Continuous product improvement is a policyof DRISTEEM Corporation; therefore, productfeatures and specifications are subject tochange without notice.
U.S. Headquarters:14949 Technology DriveEden Prairie, MN 55344800-328-4447952-949-2415952-229-3200 (fax)
European office:Bell Place, Bell LaneSyresham, Brackley
NN13 5HP, UK+44 1280 850122 (voice)+44 1280 850124 (fax)E-mail: [email protected]
DRISTEEM, GTS, and Ultra-sorb are registeredtrademarks of DRISTEEM Corporation.
2005 DRISTEEM Corporation
Model UVR is ETL listed.Models UV-I-1-18, UV-W-1-24, andUV-W-1-32 are UL classified.
For more information
Your DRISTEEM representative is:
Form No. UV-CAT-0305
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softened water.
Redesigned gas-to-steam humidifier
DRISTEEM has improvedthe functionality, reliability,and cost-efficiency ofthe industrys first gashumidifier. Now all thecomponents are containedwithin the cabinet, makingthe GTS humidifier easierto maintain and install.What hasnt changed is theproven energy-efficiency ofgas humidification.
Guaranteed steamabsorption within inchesUltra-sorb steam dispersionpanels provide guaranteeddrip-free absorption, forinstallation within inchesof downstream devices eliminating condensationworries. Panels can beinstalled in ducts or air-handling units and operatewith any steam pressure.