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MEDIA AIR CLEANER
2. Turning Vanes
• If the media air cleaner is installed next to an elbow
or angel fitting, add turning vanes inside the angle to
distribute airflow more evenly across the face of the
media. See Fig. 13.
• Turning vanes must be properly secured to prevent
movement.
3. Duct Offsets
• If the duct connection to the furnace in a side
installation is less than 7 in. you will need to add an
offset. See Fig. 14.
• Turning vanes may be required to distribute air flow
evenly.
Prepare Furnace for Installation
1. Disconnect power to your heating and cooling system
and remove power from any ultraviolet air treatment
system that is installed.
2. Remove and discard existing furnace filter. See Fig. 15.
3. Remove furnace blower compartment access cover.
See furnace owners' or installation manual for details.
4. Thoroughly clean the blower compartment using a
power vacuum (Shop-Vac).
NOTE: Media Air Cleaner cannot remove dirt that has set-
tled in the blower compartment and distribution
ducts.
69-1866—01
Fig. 13. Turning vanes help distribute airflow evenly over
LESS
THAN
7 in.
(178 mm)
1 REQUIRED TURNING VANES HELP DISTRIBUTE AIRFLOW EVENLY.
Fig. 14. Typical use of duct offsets to make room for
FAN
ACCESS
PANEL
Fig. 15. Typical use of duct offsets to make room for
8
TURNING
VANES
M5651
media.
OFFSET
AT LEAST
7 in.
1
(178 mm)
M948A
media air cleaner.
EXISTING 1 IN.
FURNACE
FILTER
media air cleaner
M13645
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