ASHRAE Journal - December 2021 - 52

AMPLIFY Overhead Fans with
Suppliers' New Product Preview Advertising Section
™
Northern Light Technology from Greenheck
®
Greenheck, the leader in air
movement with the industry's
most comprehensive selection of
products for commercial HVAC
systems, introduces AMPLIFY with
Northern Light. Northern Light is a
patented technology that combines
AMPLIFY™
HOW
NORTHERN
LIGHT
overhead HVLS fans with
UV-C lighting to inactivate airborne
viruses and bacteria. Upper room UV
lighting systems (also known as UVGI
- ultraviolet germicidal irradiation
systems) have been used for decades
to fi ght infection in medical facilities
and are recommended by the CDC,
ASHRAE, and other organizations as
an effective solution to reduce the
risk of airborne virus transmission,
including the virus that causes
COVID-19. These systems use the
natural rise and fall of convection or
mechanical air currents to circulate
airborne infectious agents into the
upper room, where they are exposed
to UV-C radiation and inactivated.
Studies have shown that ceiling fans
can increase the effectiveness of
upper-room UVGI devices by more
than 60% when used together due
to the improvement in air mixing
and distribution provided by the
fans. AMPLIFY with Northern Light's
unique, patented design combines
the air cleaning benefi t of upperroom
UVGI with the air circulation
capabilities of overhead fans to create
an effi cient solution for disinfecting
and distributing clean air. AMPLIFY
overhead fans with Northern Light
technology also provide a climatefriendly
solution, as less energy is
required for effective air cleaning
when compared to alternative
HVAC solutions like increasing
outdoor air changes or operating
traditional UVGI systems.
52
TECHNOLOGY
WORKS
Non-ozone
generating UV-C
bulbs are installed
inside the AMPLIFY
fan blades and
positioned toward
the tips of the
blades where the
majority of air
movement occurs
for the most
effective inactivation
of pathogens.
UV-C lights positioned where majority of air movement
occurs creates a larger inactivation zone.
As the fan operates,
contaminated air from the lower
portion of the room is circulated to
the ceiling where it is exposed to
powerful UV-C light as it moves
across the fan's blades. This UV-C
light damages the genetic material
(DNA and RNA) of pathogens in the
airstream, removing their ability to
replicate and rendering them
inactive. The resulting clean air is
then circulated back into the lower
portion of the room where occupants
are present.
SAFETY IS BUILT IN
AMPLIFY with Northern Light's uplight
design directs UV-C light away from
occupants, minimizing UV radiation
exposure so that fans can be safely
utilized in occupied spaces. Fans
are also installed a minimum of 10
feet above the fl oor to further prevent
direct line of sight to UV-C lights.
In addition, the system features
interchangeable UV-C irradiation
dampers that physically reduce the
size of the opening in the fan blade
ASHRAE JOURNAL ashrae.o rg D E C E M B E R 2 0 2 1
for UV-C light to
shine through.
This reduces the
UV-C radiation
intensity by as
much as 95%,
allowing end users
to customize UV
output for effective yet safe
pathogen inactivation in their space.
Selection tools are available in
Greenheck's CAPS®
and eCAPS®
product selection programs that utilize
engineering data to help users identify
an appropriate fan size and quantity
of fans for their space. These tools
remove guesswork from the selection
process and ensure you are getting
the right amount of air cleaning for
your space.
Learn more at greenheck.com/hvls
UV-C
IRRADIATION
DAMPERS
P.O. Box 410 * Schofield, WI 54476
715.359.6171 * greenheck.com
http://www.greenheck.com/hvls http://www.greenheck.com https://www.ashrae.org/
ASHRAE Journal - December 2021

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