Specification Sheet

425
MODEL TDD
DIRECT DRIVE TUBEAXIAL DUCT FAN
Max. Motor Frame: 256T
Housing Gauge: 10
Approximate Weight: 42" = 738 lbs.
48" = 834 lbs.
Flange Holes: 8
Diameter Flange Holes: 7/16"
Finish: Epoxy Coated Galvanized
Sizes 42 and 48
Size A B C* B.C.D
42 42-1/2 46-3/4 30 44-1/4
48 48-1/2 52-3/4 33 50-3/4
MODEL TDD
DIRECT DRIVE TUBEAXIAL DUCT FAN
Model HP
Nominal
RPM
Max
Watts
Static Pressure (Inches W.G.)
Sones
@ 5 ft
0 0.125 0.25 0.375 0.5 0.625 0.75 0.875 1 1.25
CFM
42
1 870 827 14852 13115 11297 - - - - - - - 51.6
1-1/2 870 1052 16770 14891 12732 9764 - - - - - - 47.9
2 870 1465 19453 17432 15438 13232 - - - - - - 45.4
3 870 2285 23340 21467 19524 14841 - - - - - - 48.6
5 870 3549 28037 25801 23523 20105 15400 - - - - - 48.9
1-1/2 1140 1144 15712 14284 12308 10623 8050 5282 - - - - 46.5
2 1140 1674 18673 17304 15722 13733 11550 8942 5461 - - - 48.7
3 1140 2376 22901 21599 20463 18932 17728 16082 - - - - 53.6
5
1140 3856 26764 25256 23923 22351 20815 18986 15351 - - - 50.3
7-1/2 1140 6044 33612 32257 30801 29238 27936 26242 - - - - 51.9
10 1140 7971 33813 32945 32039 31300 30495 29740 28839 27980 27160 24777 52.3
48
2 870 1560 21749 19771 17626 15403 12476 9330 - - - - 92.4
3 870 2417 26784 24879 22874 20641 17950 14239 - - - - 55.4
5 870 4034 29978 28722 27401 26053 24747 23134 21353 19038 - - 53.4
7-1/2 1140 6205 33555 32536 31630 30588 29507 28681 27606 26875 25782 - 92.4
10 1140 8560 40194 39319 38344 37469 36576 35415 34256 33130 32324 - 95
A B
.438
B.C.D.
C
Front View Side View
Standard 705
A: ID B: OD C: Length (*motor may extend past unit)
Performance certied is for installation type A: free inlet, free outlet. Performance ratings do
not include the effects of appurtenances (accessories). The AMCA Certied Ratings Seal
applies to air performance ratings only. Speed (rpm or rps) shown is nominal. Performance is
based on actual speed of test.
Sound data is calculated and should be used as a guideline only.
S&P USA Ventilation Systems, LLC.,
Div. of Soler & Palau Ventilation
Group certies that the Models TDD
shown herein are licensed to bear
the AMCA Seal. The ratings shown
are based on test and procedures
performed in accordance with AMCA
Publication 211 and comply with the
requirement of the AMCA Certied
Ratings Program.