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Greenheck Fan Corporation certifies that the
model FSD-312 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 5.3 Pressure Drop FSD-312
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 0.01 500 0.01 500 0.01 500 0.01 500 0.01
1000 0.06 1000 0.02 1000 0.02 1000 0.02 1000 0.04
1500 0.13 1500 0.06 1500 0.05 1500 0.06 1500 0.10
2000 0.23 2000 0.10 2000 0.09 2000 0.10 2000 0.18
2500 0.37 2500 0.16 2500 0.14 2500 0.16 2500 0.29
3000 0.53 3000 0.23 3000 0.21 3000 0.24 3000 0.42
3500 0.73 3500 0.32 3500 0.29 3500 0.33 3500 0.57
4000 0.95 4000 0.42 4000 0.38 4000 0.43 4000 0.74
24 in. x 24 in.
(
610mm x 610mm
)
36in. x 36 in.
(
914mm x 914mm
)
12in. X 48 in.
(
305mm x 1219mm
)
48 in. x 12 in.
(
1219mm x 305mm
)
12 in. x 12 in.
(
305mm x 305mm
)
12x12
48x12
12x48
24x24
36x36
*
* Sizes are in inches.