31
U
PRIGHT
I
NSTALLATIONS
Depending on the installation and/or customer preference, differing filter arrangements can be applied. Filters can be installed in the
central return register or a side panel external filter rack kit (upflows). As an alternative a media air filter or electronic air cleaner can
be used as the requested filter.
The following figures shows possible filter locations.
FIL
T
E
R
AIR FLOW
CENTRAL
RETURN
GRILLE
FIL
T
E
R
SIDE RETURN
EXTERNAL FILTER
RACK KIT
(EITHER SIDE)
Possible Upright Upflow
Figure 36
FI
LT
E
R
AIR FLOW
CENTRAL
RETURN
GRILLE
RETURN
DUCT
FI
LT
ER
FILTER
SUPPORT
BRACKET
(Field Supplied)
FILTER
ACCESS
DOOR
Possible Upright Counterflow
Filter Locations
Figure 37
Based on 300 ft/min filter face velocity
Change filters before occupants take ownership of a new home!
Model
Minimum
Filter Size
*MSS960402BNA*
14 X 30
*MSS960603BNA*
20 X 25
*MSS960803BNA*
18 X 36
*MSS960804CNA*
2 (14 X 30)
*MSS960805CNA*
2 (14 X 30)
*MSS961005CNA*
2 (16 X 30)
*MSS961205DNA*
2 (20 X 25)
Filter Sizing Chart
96% Upflow
*CSS960402BNA*
18 X 24
*CSS960603BNA*
20 X 25
*CSS960804CNA*
24 X 30
*CSS961005CNA*
2 (16 X 25)
*CSS961205DNA*
2 (18 X 24)
96% Counterflow
Filter Sizing Chart
Model
Minimum
Filter Size
*MSS920402BNA*
14 X 25
*MSS920603BNA*
20 X 24
*MSS920803BNA*
18 X 36
*MSS920804CNA*
18 X 36
*MSS920805CNA*
2 (16 X 25)
*MSS921004CNA*
2 (16 X 25)
*MSS921005CNA*
2 (16 X 25)
*MSS921205DNA*
2 (20 X 24)
Filter Sizing Chart
92% Upflow
*CSS920402BNA*
12 X 30
*CSS920603BNA*
20 X 25
*CSS920804CNA*
18 X 36
*CSS921005CNA*
2 (14 X 30)
Filter Sizing Chart
92% Counterflow
