AcuityBrands BLT is a UV disinfection troffer designed for continuous operation in occupied spaces. It helps reduce pathogenic bioburden using Far-UVC (207-222nm) radiation to help keep indoor spaces healthier, safer, and ready for business. Far-UVC is scientifically proven to be safe for human exposure, unlike traditional germicidal UV.
AcuityBrands BLT is a UV disinfection troffer designed for continuous operation in occupied spaces. It helps reduce pathogenic bioburden using Far-UVC (207-222nm) radiation to help keep indoor spaces healthier, safer, and ready for business. Far-UVC is scientifically proven to be safe for human exposure, unlike traditional germicidal UV.
When using electrical equipment, basic safety precautions should always be followed including the following:
•To reduce the risk of death, personal injury or property damage from fire, electric shock, falling parts, cuts/abrasions, and other
hazards please read all warnings and instructions included with and on the fixture box and all fixture labels.
•Before installing, servicing, or performing routine maintenance upon this equipment, follow these general precautions.
•Installation and service of this equipment should be performed by a qualified licensed electrician.
•This equipment is designed for use with germicidal UV radiation sources and must be installed in compliance with competent technical
directions to prevent risk of personal injury from UV radiation.
•UV radiation can pose a risk of personal injury. Overexposure can result in damage to eyes and bare skin. To reduce the risk of
overexposure this equipment must be installed in accordance with the manufacturer’s site planning recommendations. This may
include instructions on the relative location of each germicidal system component, the minimum distances between UV-generating
devices and other objects or surfaces, and protection from line-of-sight exposure to UV radiation in occupied spaces located above the
equipment mounting area (e. g. upper floor balconies, open staircases, etc.)
•UV and optical radiation can be reflected by surrounding surfaces such as ceilings and walls. Since the reflective properties of surfaces
can vary widely, it should be considered as part of site planning. Follow the manufacturer’s recommendations for selecting
appropriate ceiling and wall finishes.
•IT IS THE RESPONSIBILITY OF THE INSTALLER TO ENSURE THAT PERSONS WILL NOT BE EXPOSED TO EXCESSIVE UV OR OPTICAL
RADIATION DURING EQUIPMENT OPERATION. THIS WILL REQUIRE THE INSTALLER TO CONDUCT AN ASSESSMENT OF IRRADIANCE OR
ILLUMINANCE LEVELS IN THE SURROUNDING OCCUPIED SPACES PRIOR TO OCCUPANCY.
•Equipment should be mounted in locations and at heights where it will not readily be subjected to tampering by unauthorized
personnel.
•Maintenance and servicing of this UV generating equipment shall be performed by authorized personnel. Service personnel must wear
appropriate Personal Protective Equipment (PPE) if the equipment will be in operation during the maintenance or servicing work.
Contact the equipment manufacturer for PPE recommendations and guidance.
•Take precautions to ensure that the concentration of ozone in the installation is limited to a value that is within applicable permissible
exposure limits. Verify acceptable ozone concentrations in the installation taking into account the number of products in a given
volume of space, the characteristics of the ventilation system, access, and other factors. Permissible exposure limits vary based on the
place of ozone application, the length of exposure, and other factors and are publicly available. For reference, the EPA National
Ambient Air Quality Standard is 0.070 ppm maximum concentration averaged over 8 hours and current OSHA regulations set an eight-
hour time-weighted average permissible exposure limit of 0.10 ppm. The amount of ozone emitted by a single emitter of the type
used in this equipment does not exceed a concentration of 0.001 ppm over an 8-hour period, as tested in accordance with UL 867.
Dual emitters are used in this equipment and the equipment has not been tested as a complete unit.
•The use of accessory equipment not recommended by the manufacturer may cause an unsafe condition.
•Do not use this equipment for other than intended use.
•Not intended for use with wall switches. Connect to an unswitched circuit intended for 24/7/365 continuous operation.
•All references to “disinfection” are referring generally to the reduction of pathogenic bioburden and are not intended to refer to any
specific definition of the term as may be used for other purposes by the U.S. Food and Drug Administration or the U.S. Environmental
Protection Agency. The disinfection technology as incorporated in Acuity Brands Lighting products is not for use as a medical device or
for the disinfection of medical devices.
•It is the obligation of the end-user to consult with qualified Professional Engineer(s), a Certified Infection Control professional, and a
Certified Industrial Hygienist, as applicable, to determine whether this equipment and its installation meets the applicable
requirements for system performance, code compliance, safety, suitability and effectiveness for use in a particular application design.
In no event will Acuity Brands Lighting be responsible for any loss resulting from any use of this equipment in an application design.
•DO NOT INSTALL DAMAGED PRODUCT! This equipment has been properly packed so that no parts should have been damaged during
transit. Inspect to confirm. Any part damaged or broken during or after installation should be replaced. Contact the manufacturer for
replacement.
•Follow all disposal laws when replacing or disposing. Excimer lamps do not contain hazardous materials and can be recycled by
standard electronics recyclers.
•Do not install below the minimum height specified in these installation instructions.
•This equipment, including the lamp modules, must be stored in a dust-free environment and be handled while wearing clean gloves.
Since Far-UVC radiation is absorbed by proteins and other organic compounds, accumulation of dust particles or touching of the
optical radiation surface will negatively impact the output of the UV radiation source and its germicidal power.
•Replacement lamp modules must be purchased through Acuity Brands Lighting. Contact Acuity Brands Lighting when module reaches
end of life.
•These instructions do not purport to cover all details or variations in equipment nor to provide every possible contingency to meet in
connection with installation, operation, or maintenance. Should further information be desired, or should problems arise which are
not covered sufficiently for the purchaser’s or owner’s purposes, please contact technical services at Acuity Brands Lighting, 800-705-
SERV (7378).
IMPORTANT SAFETY INSTRUCTIONS
OCCUPIED SPACES DIRECT IRRADIATION UV EQUIPMENT
READ AND FOLLOW ALL SAFETY INSTRUCTIONS!
SAVE THESE INSTRUCTIONS AND DELIVER TO
OWNER AFTER INSTALLATION
IMPORTANT SAFEGUARDS
✓Disconnect or turn off power before installation or
servicing.
✓Verify that supply voltage is correct by comparing it with
the equipment label information.
✓Make all electrical and grounded connections in
accordance with the National Electrical Code (NEC) and any
applicable local code requirements.
✓All wiring connections should be capped with UL approved
recognized wire connectors.
WARNING
RISK OF ELECTRIC SHOCK
✓Allow lamp/fixture to cool before handling. Do not touch
hot lens, lamp, guard, or enclosure.
✓Follow all lamp manufacturer’s warnings,
recommendations and restrictions on lamp operation
including but not limited to: ballast type, burning
position, replacement, and recycling.
WARNING
RISK OF BURN
✓Wear gloves and safety glasses at all times when removing
equipment from carton, installing, servicing or performing
maintenance.
✓Avoid direct eye exposure to the light source while it is on.
CAUTION
RISK OF INJURY
✓Keep combustible and other materials that can burn away
from lamp/lens.
✓Do not operate in close proximity to persons,
combustible materials or substances affected by heat or
drying.
CAUTION
RISK OF FIRE
✓Disconnect or turn off power to equipment before
performing maintenance or servicing other elements in
the ceiling or space that require closer proximity than
normal standing height away from the equipment.
✓Skin or eye injury may result from overexposure to the
light produced by the lamp in this equipment at distances
less than 24 in. from the emitter.
✓Emitters used in this product are in the EXEMPT RISK
GROUP for actinic UV (200-400nm), near UV (315-
400nm), and blue light (300-700nm) hazards, as described
in IEC 62471, when installed and used according to
instructions in this document.
✓UV emitters used in this equipment can cause limited
photodegradation of many materials over years of
operation. For the few materials where
photodegradation may be more significant (such as PVC),
remove or protect these materials prior to operation of
the unit if degradation is a concern. Tested materials are
identified in the Photodegradation Testing Results
summarized on the specification sheet for this
equipment.
CAUTION
UV EXPOSURE RISKS
Failure to follow any of these instructions could void product warranties available at www.acuitybrands.com/support/warranty. For
technical assistance, call 800-705-SERV (7378).
EPA Establishment Number: 97727-MEX-2. For sale only in the United States of America and Mexico. Not registered as a pesticide device and not intended for sale into the
following U.S. states: Hawaii.
Dual module configurations do not meet California air cleaner regulation requirements; dual module configurations cannot be shipped to California.
Acuity Brands Lighting, Inc. assumes no responsibility for claims arising out of improper or careless installation or handling of its products.
IMPORTANT SAFETY INSTRUCTIONS
OCCUPIED SPACES DIRECT IRRADIATION UV EQUIPMENT
PRECAUTIONARY STATEMENTS
HAZARDS TO HUMANS AND DOMESTIC ANIMALS
2
One Lithonia Way,Conyers, GA 30012 | Phone: 800.705.7378| www.acuitybrands.com
©2021 Acuity Brands Lighting, Inc. AllRights Reserved. BLT CARE 222
✓This equipment emits UV radiation at wavelengths less
than 250 nm which can generate ozone.
✓Take precautions to ensure that ozone concentration stays
within applicable permissible exposure limits as described
in this document.
CAUTION
OZONE EXPOSURE RISK
912-00290-001 Rev. J
•When line voltage is applied to the luminaire, the Status Indicator LED should appear as a green solid light. The UV
lamp module will remain inactive for between 11 and 12 minutes. Complete any mechanical adjustments to the
luminaire before applying line voltage, or else ensure that any work on or near the luminaire that would require any
part of the installer to be more than 7ft off the floor is complete within the first 11 minutes after line voltage is
applied to prevent the installer from receiving a UV dose that is larger than the recommended amount.
•The UV lamp module will activate for a duration between 10 and 50 seconds on 12-minute cycles. The duration will
depend on the Programming Option value in each unit’s order nomenclature (e.g. 2BLT…D108). Refer to the product
Specification Sheet for guidance in selecting the correct Programming Option value for each application.
•When activated, the UV module will illuminate with a faint purple glow (see image below). The Status Indicator LED
should remain green whether the UV module is active or inactive if all self-diagnostics report proper function.
•The Status Indicator LED may reflect additional states throughout the lifetime of the luminaire. The possible states
are as follows:
UV Emitter Information
•HIGHEST IRRADIANCE AT 500 mm: 0.51 W/m2
•Use only replacement lamp modules provided by Acuity Brands Lighting. Reference the fixture’s
certification label for the unit’s nomenclature and call 800-705-SERV (7378) to ensure the correct
replacement part to order.
•Minimum height of bottom face of luminaire when installed:
- 2BLT…D108 = 108” minimum above floor - 2BLT…D132 = 132” minimum above floor
- 2BLT…D114 = 114” minimum above floor - 2BLT…D138 = 138” minimum above floor
- 2BLT…D120 = 120” minimum above floor - 2BLT…D144 = 144” minimum above floor
- 2BLT…D126 = 126” minimum above floor - 2BLT…D150 = 150” minimum above floor
Plots on pages 4 through 6 show the amount of exposure in mJ/cm2per 8 hours. Keep charts for reference only.
Proceed to pages 7 through 10 for fixture installation.
BLT CARE 222 Troffer
DESCRIPTION OF NORMAL OPERATION
3
UV Module Information
pg. 3-6
Fixture Install
pg. 7-10
The UV lamp modules are rated for approximately 5 years of life (3000 activated hours)1. The Status Indicator
LED will change to yellow solid when six months of projected life are left in the lamp module –order
replacement parts and schedule labor accordingly to ensure continuous operation.
BLT CARE 222
1 Average rated life based on industry standard measurements and not a performance claim specific to any individual product.
One Lithonia Way,Conyers, GA 30012 | Phone: 800.705.7378| www.acuitybrands.com
©2021 Acuity Brands Lighting, Inc. AllRights Reserved.
4
*All measurements in μW/cm2measured at
plane 84” above floor - 1x1ft grid **All measurements in mJ/cm2 per 8 hours, measured at
plane 84” above floor - 1x1ft grid. ACGIH guideline for
maximum dose is 23 mJ/cm2 per 8 hours. Consult Acuity
Design Services for layout of multiple-luminaire installations.
912-00290-001 Rev. J
BLT CARE 222 Troffer
IRRADIANCE PLOTS FOR 1UV222 –ALL SIZES
UV Module Information
pg. 3-6
Fixture Install
pg. 7-10
BLT CARE 222
One Lithonia Way,Conyers, GA 30012 | Phone: 800.705.7378| www.acuitybrands.com
©2021 Acuity Brands Lighting, Inc. AllRights Reserved.
5
*All measurements in μW/cm2measured
at plane 84” above floor - 1x1ft grid
**All measurements in mJ/cm2 per 8
hours, measured at plane 84” above
floor - 1x1ft grid. ACGIH guideline for
maximum dose is 23 mJ/cm2 per 8
hours. Consult Acuity Design Services
for layout of multiple-luminaire
installations.
912-00290-001 Rev. J
BLT CARE 222 Troffer
IRRADIANCE PLOTS FOR 2UV222 - 2X2
UV Module Information
pg. 3-6
Fixture Install
pg. 7-10
BLT CARE 222
One Lithonia Way,Conyers, GA 30012 | Phone: 800.705.7378| www.acuitybrands.com
©2021 Acuity Brands Lighting, Inc. AllRights Reserved.
6
912-00290-001 Rev. J
BLT CARE 222 Troffer
IRRADIANCE PLOTS FOR 2UV222 - 2X4
UV Module Information
pg. 3-6
Fixture Install
pg. 7-10
BLT CARE 222
*All measurements in μW/cm2measured
at plane 84” above floor - 1x1ft grid
**All measurements in mJ/cm2 per 8
hours, measured at plane 84” above
floor - 1x1ft grid. ACGIH guideline for
maximum dose is 23 mJ/cm2 per 8
hours. Consult Acuity Design Services
for layout of multiple-luminaire
installations.
One Lithonia Way,Conyers, GA 30012 | Phone: 800.705.7378| www.acuitybrands.com
©2021 Acuity Brands Lighting, Inc. AllRights Reserved.
Fixture Install
1Place the fixture in the appropriate T-Bar ceiling structure. This fixture is designed for standard ANSI Type G ceilings..
7
UV Module Information
pg. 3-6
Fixture Install
pg. 7-10
BLT CARE 222
**Caution: MAKE SURE LUMINAIRE IS MOUNTED TO A SECURE STRUCTURE. USE APPROPRIATE
MOUNTING HARDWARE TO INSTALL FIXTURE RATED FOR YOUR APPLICATION. FAILURE TO MOUNT
FIXTURE CORRECTLY COULD RESULT IN SERIOUS INJURY.
ABOVE CEILING ACCESS REQUIRED - DO NOT INSTALL IN A DWELLING
KEEP THESE INSTALLATION INSTRUCTIONS
2From above ceiling, bend the integral T-Bar clips over the T-Bars on all 4 corners to secure the fixture to the T-Bar
ceiling as shown in Figure 1. Fixture may be secured to building structure, as required by some local codes, using the
wire hanger holes, also shown in Figure 1.
•Refrain from bending the T-bar clips multiple times prior to installation, to prevent damage.
3Using a screwdriver, remove access plate as shown in Figure 2, with the branch circuit power OFF make electrical
connections from supply and properly ground as local codes dictate (refer to Figures 3 through 5).
LED Driver Wiring:
•Green wire –Ground
•White wire –Neutral
•Black wire –Hot
UV Module Wiring (This is to be on a unswitched circuit for continuous operation):
•Green wire –Ground
•White wire –Neutral
•Black wire –Hot
4If the dimming leads ((Purple & Pink (or Gray)) aren’t being used, cap them off (if not already done). Dimming leads
are for low voltage dimming only.
•Purple wire –0-10V (+)
•Pink (or Gray) wire –0-10V (-)
5Reinstall and secure access plates.
For recessed mounting:
6If fixture includes factory installed emergency battery, refer to Figures 3 through 5 for incoming supply connections.
912-00290-001 Rev. J
7Once the fixture is installed, remove the red protective UV module cover and inspect the module glass for cracks,
dust, fingerprints, etc… IF CRACKS ARE PRESENT, DO NOT APPLY POWER, but return the fixture to Acuity Brands
Lighting for replacement. If dust or fingerprints are present, clean the glass with a non-abrasive cleaner. It is
recommended that the glass be cleaned periodically to retain the intended UV-C transmission.
One Lithonia Way,Conyers, GA 30012 | Phone: 800.705.7378| www.acuitybrands.com
©2021 Acuity Brands Lighting, Inc. AllRights Reserved.
Fixture Install – Continued…
8
UV Module Information
pg. 3-6
Fixture Install
pg. 7-10
BLT CARE 222
912-00290-001 Rev. J
8Install the UV Status and Information Label, shown below, by affixing it in a location that will be visible after
installation in a location likely to be discovered by future maintenance personnel. Suggested locations include: a
cover plate near the entrance to the room containing the BLT CARE 222 fixture(s), the electrical panel supplying
the luminaire branch circuit, or a clean, smooth wall near the room entrance.
9Energize fixture(s) and confirm that each of the UV Status Indicator LEDs are illuminated GREEN.
Hanger Wire Mounting Points
Figure 1: T-Bar clip installation
UV Status and Information Label
One Lithonia Way,Conyers, GA 30012 | Phone: 800.705.7378| www.acuitybrands.com
©2021 Acuity Brands Lighting, Inc. AllRights Reserved.
Fixture Install – Continued…
9
BLT CARE 222
912-00290-001 Rev. J
UV Module Information
pg. 3-6
Fixture Install
pg. 7-10
Figure 3: LED Driver Wiring Diagram
Figure 2: Access Plate Locations
2BLT2
CARE 222
One Lithonia Way,Conyers, GA 30012 | Phone: 800.705.7378| www.acuitybrands.com
©2021 Acuity Brands Lighting, Inc. AllRights Reserved.
)
Fixture Install – Continued…
10
BLT CARE 222
912-00290-001 Rev. J
NEUTRAL
LINE (120-277VAC 50-60hz, Unswitched)
GROUND
J-BOX
CONNECTIONS
GREEN
BLACK
WHITE
BRANCH CIRCUIT
Make field wiring connections in accordance
with local code.
Figure 4: UV Wiring Diagram
Figure 5: IOTA Emergency Battery Wiring Diagram
UV Module Information
pg. 3-6
Fixture Install
pg. 7-10
SAVE THESE INSTRUCTIONS AND DELIVER TO
OWNER AFTER INSTALLATION
One Lithonia Way,Conyers, GA 30012 | Phone: 800.705.7378| www.acuitybrands.com
©2021 Acuity Brands Lighting, Inc. AllRights Reserved.
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AcuityBrands BLT is a UV disinfection troffer designed for continuous operation in occupied spaces. It helps reduce pathogenic bioburden using Far-UVC (207-222nm) radiation to help keep indoor spaces healthier, safer, and ready for business. Far-UVC is scientifically proven to be safe for human exposure, unlike traditional germicidal UV.
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