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Installer's
Guide
®
ENGAGEMENT
HOLE DETAIL
(Typical both sides
and blower deck)
OPTIONAL FILTER RACK INSTALLATION FOR
SIDE RETURN AIR ON UPFLOW FURNACES (Left or Right)
NOTE:
The optional filter rack installation is not allowed for right
side return on the following model: *UXI COSOA9601.
If side air return
is desired,
the following instructions
should
be used:
a.
b.
C.
Open or remove the blower door.
Leave the bottom panel in place.
Alter the side cutout is made lbllowing the directions
in the "Return Air Duct Connections"
section on
pages 8 and 9, compress
the optional
filter rack and
reinstall
in the side of the furnace.
Confirm that the
upper retaining
pin/screw
locks into the engagement
hole in the blower deck and the lower pin/screw
rests
against
the side of the bottom panel.
See Figures
14 -
18.
d. Install the optional
fllrnace
filter on the side inserting
the chamler
end first.
®
Filter
Furnace
/
Rack
Cabinet
Side
Engagement
Hole
For Filter Rack
Installation
With
Bottom Return
Filter Rack
Retaining
Screw/Pin
®
BOTTOM ENGAGEMENT
Furnace
Cabinet
Side
Filter Rack
Retaining
Screw/Pin
Engagement Hole
For Filter Rack
Installation With
Bottom Return
Filter
Rack
t
Bottom Panel
®
BLOWER
DECK
Furnace
Cabinet =,,,_
Side
Engagement
Hole
Furnace
For Filter Rack
Blower
Installation
With
Side Return
Deck
N
Filter
Retain ing
Rack
Screw/Pin
Assembly
SIDE
CUTOUT
\
RETAINING
(B° PIN
"_
Iti
///
FILTER
BOTTOM
PANEL
INSTALLED
Typical Upflow Left Side Return Filter Rack Installation
10
18-CD19D6-27
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