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Greenheck Fan Corporation certifies that the
model SMD-301M shown herein is licensed to bear
the AMCA Seal. The ratings shown are based on
tests and procedures performed in accordance
with AMCA Publication 511 and comply with the
requirements of the AMCA Certified Ratings Pro-
grams. The AMCA Certified Ratings Seal applies to
air performance ratings only.
AMCA 5.2 Pressure Drop SMD-301M
5D 6D
5D
D
4 (W) (H)
3.14
Velocity
(fpm)
Pressure Drop
(in. wg)
Velocity
(fpm)
Pressure Drop
(in. wg)
Velocity
(fpm)
Pressure Drop
(in. wg)
Velocity
(fpm)
Pressure Drop
(in. wg)
Velocity
(fpm)
Pressure Drop
(in. wg)
500 0.03 500 0.01 500 0.01 500 0.01 500 0.02
1000 0.12 1000 0.06 1000 0.061000 0.051000 0.08
1500 0.26 1500 0.12 1500 0.121500 0.12 1500 0.18
2000 0.46 2000 0.22 2000 0.222000 0.21 2000 0.33
2500 0.72 2500 0.34 2500 0.342500 0.332500 0.51
3000 1.04 3000 0.49 3000 0.493000 0.483000 0.74
3500 1.41 3500 0.67 3500 0.673500 0.653500 1.00
4000 1.84 4000 0.87 4000 0.884000 0.854000 1.31
12in. X 48 in.
(
305mm x 1219mm
)
48 in. x 12 in.
(
1219mm x 305mm
)
24 in. x 24 in.
(
610mm x 610mm
)
36in. x 36 in.
(
914mm x 914mm
)
12 in. x 12 in.
(
305mm x 305mm
)
* Sizes are in inches.