Specification Sheet

298
FILTERED WALL HOUSING MOUNTING OPTIONS Cont.
Filtered Wall Housing Dimensions
Optional Rainhood
(90 deg. supply)
Optional
Damper
A
B
C
D
Filtered Supply
Filtered Exhaust
Optional Rainhood
(45 deg. exhaust)
A
B
C
D
Use the estimated pressure drop graphs to help select
the proper exhaust or supply fan that will deliver the
desired airow. Enter the graph from the bottom at
the specied CFM and move vertically upward to the
fan curve for the desired size, then horizontally to
the left and read the estimated static pressure drop
resulting from these typical accessory packages. Add
the accessory pressure loss to the system (or building)
design static pressure loss to obtain the total static
pressure loss to be used for the proper fan selection.
PRESSURE LOSS GUIDE FOR FILTER BOX
Fan
Size
Wall Housing
Minimum Wall
Opening
Filter Box
A
B Length
C D
# of
Filters
Filter
Actual Dimensions
LC & L2 Sq
20 25 44 25 1/2 25 44 1/8 3 19 5/8 x 24 5/8 x 1 7/8
24 31 44 31 1/2 31 41 1/8 4 19 5/8 x 24 5/8 x 1 7/8
30 37 44 37 1/2 37 44 1/8 8 15 5/8 x 24 5/8 x 1 7/8
36 43 44 43 1/2 43 44 1/8 8 19 5/8 x 24 5/8 x 1 7/8
42 49 44 49 1/2 49 44 1/8 10 19 5/8 x 24 5/8 x 1 7/8
48 55 44 55 1/2 55 40 1/2 12 19 5/8 x 24 5/8 x 1 7/8
54 61 44 61 1/2 61 44 1/8 15 19 5/8 x 24 5/8 x 1 7/8
60 67 44 67 1/2 67 44 1/8 15 19 5/8 x 24 5/8 x 1 7/8
Mounting
Flanges
Wall
Mounting Flanges
Filter
Box
Wall
Housing
Lifting
Lugs
Optional
Damper
Mounting
Flanges
Wall
Mounting Flanges
Filter
Box
Wall
Housing
Lifting
Lugs
MODELS LCE/LCS, L2E/L2S, L3E/L3S
BELT DRIVE SIDEWALL PROPELLER FANS