Honeywell 11255 - Manual (Page 22)

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The filter media consists of 100% high bulk poly-
ester fibers that are thermo-bonded with a fire retar-
dant res” Support grilles of expanded metal are
provided on both sides of the filter. The media pads
and support grilles are continuously glued to the
inside perimeter of the frame, resulting in excep-
tional strength and rigidity. This design virtually
eliminates the possibility of media sag within the
frame.
Polyester Bulk Media Rolls and Pads
Models 1Txx for 1” and 2Txx for 2”
For use as a prefilter in downdraft booths. Polyester
pads and rolls are made of a dual layer polyester
media with a dry tackifier. The filter is cut into vari-
ous pad sizes from the roll and placed into a metal
holding frame (See Uniframe on page 79). The
1DT media is a 1“ thick filter, and the 2DT media is
a 2” thick filter. The media can be ordered in pre-
cut pads or bulk rolls, and can easily be trimmed
with scissors.
KKM Washable
Models 51255.xxxxx
Washable permanent filter for use as a prefilter in
downdraft booths. The KKM permanent filter is a
heavy duty, washable, aluminum media, all metal
filter.
The KKM offers large filtering area, high dust hold-
ing capacity, uniform loading and low resistance to
airflow. It is recommended that the filter media be
coated with dust adhesive for optimum perform-
ance.
The standard offering of KKM filters includes six of
the most popular face sizes in 1” and 2” depths.
Special face sizes and 1/2” depth filters are also
available. For ease of installation, all filters are
undercut slightly on length, width and depth.
Precision Pak
Models PAPxxxSxxxx
High efficiency bag filter for use as a prefilter in
downdraft booths and prep stations.
The Precision Pak ASHRAE bag use a fully syn-
thetic media that provides an efficiency rating of 45-
55%. The pockets are hand sewn or ultrasonically
sealed and fastened to an all aluminum frame.
They are designed for specific booths and prep sta-
tions that can accommodate their special size and
performance properties. UL 900 Class 2 Listed.
Precision Pak bags have a large amount of media
surface area. This decreases the pressure drop
and increases the capacity. These bags hold sub-
stantial amounts of dirt removed from the airstream.
Use of these bags will ensure a clean environment
throughout the intake stack and prolonged life of
the ceiling diffusion media.
Bag filters are sized nominally in their length and
width. If the booth track measures 19.5” x 19.5”,
then the correct bag listed is 20” x 20”. Bag filters
also have a special depth. The depth describes the
length of the pockets. This is an exact size and is
usually an even number. There are many other
sizes available, and custom sizes can be made to
order. There are also other efficiencies ranging
from 45% through 95%. For additional sizes, UL
Ratings or efficiencies, please contact customer
service.
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