Unit installation

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Spring Air System Enviro Engineering Manual 01/033
3
Within the KES Enviro Filter Unit (KES-ISH) the exhaust air travels through three stages of
particulate filters.
1.Two (2) inch (51 mm) pleated - 30% ASHRAE 52-76 filters
2.Twenty-one (21) in. (525 mm) bag - 90% ASHRAE 52-76 filters
3.Twelve (12) in. (305 mm) box - 95% DOP filters, (99% ASHRAE 52-76)
Within the KES Enviro Filter Unit (KES-ISH) the exhaust air is cleaned of airborne grease, lint and
dirt particulate. Once through the KES Enviro Filter Unit (KES-ISH) the exhaust air enters KES
Enviro Fan Unit (KESF).
The KES Enviro Fan Unit (KESF) is a separate package containing the exhaust fan, motor, belts,
drives, motor starter, disconnect and the optional odor removal section. There are two options
available for odor reduction:
1.PELLETS: The section consists of metal cells filled with activated alumna pellets impregnated
with potassium permanganate. The odor is controlled through a combination of sorption and
a chemical modification of the gaseous contaminates. The odor media is non-toxic and non-
flammable.
2.SPRAY: The section consists of an atomizing air nozzle, air compressor, timing control circuit,
associated piping, and a container of Spring Fresh deodorizer. The Spring Fresh solution is
sprayed at an adjustable interval for an adjustable time into the exhaust ductwork to reduce
the commercial kitchen odors.
After leaving the KES Enviro Fan Unit the air is discharged to atmosphere. The Spray or Pellet
odor reduction section is be located in the KESF enviro fan unit or shipped for remote installation.
KESF Fan Box Plan View
Figure 3
ACCESS DOOR
EXHAUST FAN
INLET
EXHAUST
EXHAUST
OUTLET
SINGLE WALL CONSTRUCTION
EXHAUST FAN MOTOR
EXHAUST FAN DISCONNECT
EXHAUST FAN MOTOR STARTER
OPTIONAL ODOUR SPRAY UNIT
OPTIONAL SOUND ATTENUATION PACKAGE