Skuttle Indoor Air Quality Products Air Cleaner - Manual (Page 4)

Special Considerations
Transitions
Transitions – when needed – should be constructed so that the angle of expansion is no more than 20° (4"
per foot, max.).
Turning Vanes
To reduce turbulence, turning vanes are recommended if the installation requires a 90° elbow, or if there is
an angled fitting directly beside the Air Cleaner.
Humidifiers
It is crucial to avoid the buildup of moisture in and around the Air Cleaner media during humidifier oper-
ation. Evaporative type humidifiers will not effect the media. Spray or steam units should be installed in
the air stream after the Air Cleaner. (If it is necessary to install a spray or steam humidifier that is inline
before the Air Cleaner, there must be 8 or more feet of ductwork between the humidifier and the Air
Cleaner.)
Maintenance
Replacement of the Air Cleaner's pleated media element (i.e., the filter itself) can be determined by peri-
odic visual inspection. The average lifespan of a media cartridge is 12 months, but actual times vary
depending upon system run times, and the amount and type of contaminants present. (You may want to
have your HVAC contractor replace the media during the annual or biannual inspection of your furnace.)
Securing the Air Cleaner Cabinet
This drawing shows a Skuttle High-
Efficiency Air Cleaner cabinet. The
sectioning lines and arrows indicate the
cutaway portion of the cabinet,
photographed at right.
This photo indicates a possible placement
of sheet metal screws to secure the Air
Filter to the ductwork. (Screw placement
may vary, depending on the installation
technique used.) Circled screws are 1/2"
long to prevent interference with the filter
media cartridge; all others are 1" long, #8
sheet metal screws.