Greenheck Combination Fire Smoke Dampers SSFSD-211 Specification Sheet page 3

AMCA 5.2 Pressure Drop
12 in. x 12 in. (305mm x 305mm)
Pressure Drop
Velocity (fpm)
(in. wg)
500 0.04
1000 0.14
1500 0.31
2000 0.55
2500 0.86
3000 1.24
3500 1.69
4000 2.20
Figure 5.3
Figure 5.2
Figure 5. 5
24 in. x 24 in. (610mm x 610mm)
Pressure Drop
Velocity (fpm)
(in. wg)
500 0.02
1000 0.07
1500 0.16
2000 0.29
2500 0.45
3000 0.65
3500 0.89
4000 1.16
Greenheck Fan Corporation certifies that the
model SSFSD-211 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
R
requirements of the AMCA Certified Ratings Pro-
grams. The AMCA Certified Ratings Seal applies to
air performance ratings only.
5D
36 in. x 36 in. (914mm x 914mm)
Pressure Drop
Velocity (fpm)
(in. wg)
500 0.01
1000 0.04
1500 0.09
2000 0.16
2500 0.25
3000 0.36
3500 0.49
4000 0.64
SSFSD-211
D =
12 in. x 48 in. (305mm x 1219mm)
Pressure Drop
Velocity (fpm)
(in. wg)
500 0.01
1000 0.06
1500 0.13
2000 0.23
2500 0.36
3000 0.52
3500 0.70
4000 0.92
4 (W) (H)
3.14
48 in. x 12 in. (1219mm x 305mm)
Pressure Drop
Velocity (fpm)
(in. wg)
500 0.03
1000 0.10
1500 0.23
2000 0.41
2500 0.63
3000 0.91
3500 1.24
4000 1.62