Instruction manual

31
UPRIGHT INSTALLATIONS
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.
FILTER
AIR FLOW
CENTRAL
RETURN
GRILLE
FILTER
SIDE RETURN
EXTERNAL FILTER
RACK KIT
(EITHER SIDE)
Possible Upright Upflow
Figure 36
FI
LT
E
R
AIR FLOW
CENTRAL
RETURN
GRILLE
RETURN
DUCT
F
I
LT
E
R
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