Gx2-Uv" Series Principle Of Operation - GAYLORD Ultima Vent GX2-UV Technical Manual

The Gaylord "GX2-UV" Series Non Water-Wash Ventilator
offers simplicity, economy and performance that no other
ventilator can offer. The unique "extractor insert" gives a
grease extraction efficiency far superior to that of a typical
baffle filter. The Gaylord "GX2-UV" Series Ventilators are UL
Listed and meet all the requirements of NFPA #96 and the
International Mechanical Code.
EXHAUST FAN OPERATION
The exhaust fan is controlled by the Gaylord CUV-100 Control
Cabinet. The cabinet is usually located on a wall near the
ventilator. When the control is turned on, the exhaust fan and
UV Lamps will come on.
GREASE EXTRACTION
The Gaylord "GX2-UV" Series Ventilator extracts up to 99%
of the grease, dust, and lint particles from the airstream
passing through it. Grease extraction is accomplished by
unique, removable stainless steel "extractor inserts" which
incorporate a series of horizontal baffles. As the air moves
through the extractor at high speed, it is forced to make a
series of turns around these baffles, forcing the heavier-than-
air particles of grease, dust, and lint to be thrown out of the
airstream by centrifugal force. The sticky grease collects in
the extractor and the liquified grease drains down into the
main grease gutter which slopes to the grease cup. Note:

"GX2-UV" SERIES PRINCIPLE OF OPERATION

GREASE EXTRACTION
Some ventilators may be equipped with optional "Custom Air"
baffles (shown dotted) to reduce the exhaust volume over
specific light duty cooking appliances. The extractor inserts
come in two sizes15½" (5.6 lbs.) and 19½" (6.75 lbs.).
Particulate Separator
Once the largest particles of grease have been captured
through inertial impaction by the baffles. The smaller particles
of grease will be arrested in the particulate separator using the
principles of diffusion and inertial impaction.
UV Lamps
Once the baffles and particulate separators have collected the
grease particles larger than 1 micron. The UV lights will be
able to break down the remaining grease by direct exposure
to 254nm light and by the Ozone, Hydroxyl Radicals and
Anionic oxygen created by the 187nm UV light. This will carry
down the ductwork and continue to break down the grease,
particulate and odor molecules keeping the ductwork much
cleaner. The byproducts of this process are CO
base minerals from the grease and particulate matter coming
off of the cooking surface. There will be a light gray dust that
collects on the lamps, which will be need to wiped off. The
ductwork will need to be inspected per NFPA-96 schedules
but, will need much less frequent cleaning.
IMPORTANT NOTE: Never operate ventilator without extrac-
tor inserts in place.
FIG. 1
5
, H 0 and the
2 2