12x12
48x12
24x24
12x48
36x36
* Sizes are in inches.
*
AMCA 5.5 Pressure Drop
OFSD-312
R
Greenheck Fan Corporation certifies that the
model OFSD-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
Programs. The AMCA Certified Ratings Seal
applies to air performance ratings only.
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
0.04
500
0.03
500
0.03
500
0.03
500
0.03
1000
0.18
1000
0.13
1000
0.12
1000
0.12
1000
0.14
1500
0.42
1500
0.29
1500
0.27
1500
0.27
1500
0.32
2000
0.75
2000
0.52
2000
0.48
2000
0.49
2000
0.57
2500
1.17
2500
0.81
2500
0.75
2500
0.77
2500
0.89
3000
1.68
3000
1.17
3000
1.08
3000
1.11
3000
1.28
3500
2.29
3500
1.60
3500
1.48
3500
1.51
3500
1.75
4000
2.09
4000
2.14
4000
1.93
4000
1.97
4000
2.29
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)
