Unit installation

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Spring Air System Enviro Engineering Manual 01/034
4
KES ENVIRO FILTER UNIT (KES-ISH)
The KES Enviro Filter unit contains the LV10 panel, pressure switches, and three stages of filters.
The unit is constructed of 16 gauge steel inner shell, continuously welded and liquid tight in
accordance with the NFPA-96. The outside of the unit is wrapped in 1.5” insulation and 18 gauge
steel protective covering primed and painted. Channels running along the length of each side
support the unit. Lifting and support points are at the four corners of the KES-ISH unit at the ends
of these channels. No external isolation of the unit is required. The two access doors are double
wall construction with 1.5” insulation and cam lock door fasteners per the UL/ULC fire rated
listing.
A fusible link fire damper is located
at the outlet of the KES-ISH filter
unit. The link temperature is 165F
and is accessible through the
Prefilter/Bag filter access door.
Pressure tubing from the pressure
switches is run inside along the top
of the unit to pressure probes
located in front and behind each
filter section. The firestat is located
at the exhaust inlet end and
mounted on the same side as the
LV10 panel.
KES-ISH Enviro Filter Box
Figure 4
KESF ENVIRO FAN UNIT
The KESF Enviro Fan unit contains the exhaust fan, exhaust fan motor, drives, and belts,
disconnect, motor starter, isolators and optional odor reduction sections, spray or pellets.
The unit casing is 16-gauge steel, primed and painted suitably reinforced to ensure rigidity. An
optional sound attenuation
package is available for the
interior of the fan unit. This
package is highly recommended
on all indoor units. Channels
running along the length of each
side support the KESF unit.
Lifting and support points are at
the four corners of the KESF unit
at the ends of these channels.
An access door is provided to the
exhaust fan motor and drive
section.
KESF Enviro Fan Unit
Figure 5