EXHAUST FANS
better AIRFLOW
TM
by DESIGN
CDB & CDD
DOWNBLAST
FANS
•
•
•
•
•
•
•
•
Suitable for roof or wall mount
Backward inclined, non-overloading wheels
Spun aluminum housing
Weather resistant construction
Blades & inlets fabricated from aluminum
Available in single & three phase voltages
Belt drive capacities to 17,650 cfm
Direct drive capacities to 2,750 cfm
Custom Fan SolutionsTM
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CDB BELT DRIVE DOWNBLAST FANS
PERFORMANCE
0” S.P.
CFM
0.25” S.P.
CFM
0.50” S.P.
CFM
0.75” S.P.
CFM
1” S.P.
CFM
1.25” S.P.
CFM
1.50” S.P.
CFM
MTR
HP
MODEL
RPM
700
SONE / BHP
SONE / BHP
SONE / BHP
SONE / BHP
SONE / BHP
SONE / BHP
SONE / BHP
355
CDB-07-14
0.25
0.25
0.25
0.25
0.25
2.0 / 0.02
455
300
CDB-07-14
CDB-07-14
CDB-07-14
CDB-07-14
900
1100
1300
1500
4.3 / 0.04
2.9 / 0.05
560
434
265
6.4 / 0.08
5.5 / 0.08
5.3 / 0.08
660
556
440
256
6.8 / 0.13
6.8 / 0.13
6.5 / 0.13
6.2 / 0.12
760
673
577
468
295
11.1 / 0.19
11.0 / 0.20
10.8 / 0.20
10.2 / 0.20
9.0 / 0.18
512
CDB-08-14
CDB-08-14
CDB-08-14
CDB-08-14
CDB-08-14
700
900
0.25
0.25
0.25
0.25
0.25
2.4 / 0.2
655
483
5.0 / 0.05
4.5 / 0.06
800
670
500
1100
1300
1500
7.3 / 0.09
7.1 / 0.10
6.4 / 0.10
945
841
712
544
9.8 / 0.14
9.5 / 0.15
8.8 / 0.17
8.5 / 0.16
1095
1002
900
775
628
13.1 / 0.22
12.9 / 0.23
12.9 / 0.25
12.4 / 0.25
11.3 / 0.25
715
428
CDB-09-14
CDB-09-14
CDB-09-14
CDB-09-14
CDB-09-13
800
0.25
0.25
0.25
0.25
0.33
3.8 / 0.04
3.6 / 0.04
895
701
1000
1200
1400
1600
6.8 / 0.07
6.7 / 0.08
1075
928
717
9.3 / 0.12
9.1 / 0.13
9.1 / 0.14
1255
1136
984
771
11.6 / 0.19
11.5 / 0.21
11.3 / 0.22
9.9 / 0.22
1435
1332
1211
1057
870
585
16.1 / 0.28
15.7 / 0.30
15.3 / 0.32
14.7 / 0.33
13.8 / 0.32
13.0 / 0.30
735
CDB-11-14
CDB-11-14
CDB-11-14
CDB-11-13
800
0.25
0.25
0.25
0.33
2.7 / 0.03
920
710
1000
1200
1400
4.2 / 0.06
3.6 / 0.09
1105
965
728
6.7 / 0.10
6.0 / 0.15
5.4 / 0.16
1286
1212
986
788
8.7 / 0.16
8.8 / 0.20
8.2 / 0.25
6.6 / 0.26
1298
1000
CDB-13-14
CDB-13-14
CDB-13-14
CDB-13-14
CDB-13-13
CDB-13-12
CDB-13-12
800
900
0.25
0.25
0.25
0.25
0.33
0.50
0.50
5.7 / 0.08
6.0 / 0.16
1458
1207
7.2 / 0.11
6.4 / 0.13
1622
1394
1113
1000
1100
1200
1300
1400
9.2 / 0.15
8.5 / 0.18
7.5 / 0.19
1781
1575
1356
11.4 / 0.20
10.9 / 0.23
10.0 / 0.25
1943
1762
1561
1288
14.0 / 0.26
13.8 / 0.30
12.7 / 0.32
12.0 / 0.32
2107
1932
1756
1553
13.9 / 0.33
13.9 / 0.36
13.6 / 0.39
11.6 0.40
2272
2108
1948
1769
1541
15.9 / 0.41
15.0 / 0.44
14.7 / 0.48
13.9 / 0.50
12.3 / 0.50
3
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CDB BELT DRIVE DOWNBLAST FANS
PERFORMANCE
0” S.P.
CFM
0.25” S.P.
CFM
0.50” S.P.
CFM
0.75” S.P.
CFM
1” S.P.
CFM
1.25” S.P.
CFM
1.50” S.P.
CFM
MTR
HP
MODEL
RPM
700
SONE / BHP
SONE / BHP
SONE / BHP
SONE / BHP
SONE / BHP
SONE / BHP
SONE / BHP
1807
1376
CDB-15-14
0.25
0.25
0.33
0.33
0.50
0.75
5.0 / 0.10
4.0 / 0.12
2068
1708
1066
CDB-15-14
CDB-15-13
CDB-15-13
CDB-15-12
CDB-15-34
800
900
7.0 / 0.15
6.1 / 0.18
4.4 / 0.17
2330
2017
1600
8.9 / 0.21
8.1 / 0.24
6.9 / 0.26
2586
2327
1995
1446
1000
1100
1200
10.7 / 0.29
9.9 / 0.30
9.1 / 0.35
7.1 / 0.33
2844
2605
2321
1957
1155
10.9 / 0.38
10.9 / 0.42
10.8 / 0.45
9.6 / 0.46
9.3 / 0.39
3106
2886
2643
2343
1915
13.9 / 0.49
13.8 / 0.53
13.5 / 0.57
12.8 / 0.59
11.6 / 0.57
2344
1905
CDB-18-14
CDB-18-13
CDB-18-12
CDB-18-34
CDB-18-01
600
700
800
900
1000
0.25
0.33
0.50
0.75
1.00
5.9 / 0.17
5.0 / 0.20
2739
2361
1830
8.8 / 0.26
7.8 / 0.30
6.6 / 0.30
3138
2800
2445
1681
11.6 / 0.39
10.6 / 0.43
9.5 / 0.46
8.9 / 0.42
3529
3235
2928
2559
13.7 / 0.55
12.9 / 0.60
11.9 / 0.63
10.9 / 0.64
3920
3661
3384
3086
2682
14.8 / 0.74
14.8 / 0.79
14.0 / 0.83
12.8 / 0.86
11.9 / 0.85
2862
2094
CDB-20-14
CDB-20-13
CDB-20-12
CDB-20-34
CDB-20-01
500
600
700
800
900
0.25
0.33
0.50
0.75
1.00
5.0 / 0.15
3.7 / 0.17
3444
2890
7.5 / 0.25
6.4 / 0.30
4010
3592
2939
10.5 / 0.39
9.6 / 0.45
8.1 / 0.47
4580
4229
3746
3049
12.7 / 0.58
11.9 / 0.65
10.7 / 0.69
8.9 / 0.68
5156
4849
4476
3954
3224
15.5 / 0.81
15.5 / 0.90
14.7 / 0.95
13.5 / 0.96
11.3 / 0.92
3781
2437
CDB-24-14
CDB-24-34
CDB-24-02
400
600
800
0.25
0.75
2.00
5.8 / 0.17
4.6 / 0.20
5687
5075
4002
12.0 / 0.56
11.3 / 0.65
9.4 / 0.65
7592
7141
6549
5847
4964
2975
19.2 / 1.29
19.2 / 1.40
18.3 / 1.48
17.5 / 1.52
15.9 / 1.51
16.1 / 1.26
6553
5571
3674
CDB-30-34
CDB-30-32
CDB-30-02
CDB-30-03
400
500
600
700
0.75
1.50
2.00
3.00
7.1 / 0.51
6.2 / 0.59
5.0 / 0.53
8186
7425
6454
4953
11.3 / 0.95
10.4 / 1.08
9.1 / 1.11
8.1 / 1.06
9840
9212
8550
7701
6443
14.1 / 1.64
14.2 / 1.81
12.6 / 1.90
11.2 / 1.93
10.9 / 1.87
6763
13.8 / 2.82
11500
10944
10393
9841
9025
8054
17.7 / 2.59
17.6 / 2.79
17.0 / 2.91
15.8 / 3.00
14.9 / 3.00
13.9 / 3.00
8790
6827
CDB-36-34
CDB-36-32
CDB-36-03
CDB-36-05
300
400
500
600
0.75
1.50
3.00
5.00
5.9 / 0.50
5.0 / 0.61
11759
10441
8594
10.6 / 1.14
9.6 / 1.34
8.4 / 1.38
14700
13686
12514
10971
7759
15.5 / 2.20
14.7 / 2.47
13.7 / 2.63
12.4 / 2.66
12.4 / 2.31
17654
16771
15903
14859
13638
12000
21.0 / 3.77
21.0 / 4.08
19.8 / 4.35
18.8 / 4.50
18.0 / 4.56
17.9 / 4.47
4
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CDD DIRECT DRIVE DOWNBLAST FANS
FEATURES & BENEFITS
•
•
•
•
•
•
•
•
•
Suitable for roof or wall mount
Backward inclined, non overloading wheels
Spun aluminum housing for weather resistant durability
Wire conduit provides protected channel for electrical connections
Blades and inlets fabricated from aluminum
Bird screen
Variable speed control
110 F max. temperature rating
Available in 115V 1 phase
ACCESSORIES / OPTIONS
•
•
•
•
Gravity damper
Motorized damper
Wall mount sleeve
Roof curb
W
D
D
HT
CURB (OPTIONAL)
E
B
20 GAUGE
STEEL
CONSTRUCTION
R
RO
C
3" FLANGE
DIMENSIONS IN INCHES*
WT
DAMPER
MANUFACTURE
CODE
MODEL
HT
W
B
2
C
D
E
R
RO
8.1
(LBS)
13
SQUARE
12
CDD-10
14.5
20.8
19.0
17.5
17.5
19.5
19.5
19.5
19.5
23.0
23.0
12
8.1
DR10H
DR12H
DR25H
DR30H
DR33H
DR50H
DR75H
DR85H
CDD-12
CDD-25
CDD-30
CDD-33
CDD-50
CDD-75
CDD-85
16.3
19.1
19.1
19.1
21.8
23.4
23.4
23.8
26.3
26.3
26.3
29.8
33.3
33.3
2
2
2
2
2
2
2
19.0
21.0
21.0
21.0
21.0
24.8
24.8
12
12
12
12
12
12
12
10.6
12.1
12.1
12.1
13.3
14.9
14.9
10.6
12.1
12.1
12.1
13.3
14.9
14.9
13
16
16
16
16
20
20
12
15
15
15
15
19
19
*DO NOT USE FOR CONSTRUCTION
CONSULT FACTORY FOR CERTIFIED PRINTS
5
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CDD DIRECT DRIVE DOWNBLAST FANS
PERFORMANCE
0” S.P.
CFM
0.125” S.P.
CFM
0.25” S.P.
CFM
0.375” S.P.
CFM
0.50” S.P.
CFM
0.625” S.P.
CFM
0.75” S.P.
CFM
0.875” S.P.
CFM
1” S.P.
CFM
MTR
HP
MODEL
CDD-10
RPM
1000
SONE/BHP SONE/BHP SONE/BHP SONE/BHP SONE/BHP SONE/BHP SONE/BHP SONE/BHP SONE/BHP
338
259
166
0.07
0.07
0.07
0.07
0.07
0.07
0.07
3.1 / 0.02
3.1 / 0.02
3.1 / 0.02
371
300
226
111
CDD-10
CDD-10
CDD-10
CDD-10
CDD-10
CDD-10
1100
1200
1300
1400
1500
1600
3.7 / 0.02
3.7 / 0.02
3.7 / 0.02
3.7 / 0.02
405
339
275
188
4.4 / 0.03
4.4 / 0.03
4.4 / 0.03
4.4 / 0.03
439
378
319
250
155
5.2 / 0.04
5.2 / 0.04
5.2 / 0.04
5.2 / 0.04
5.2 / 0.04
473
416
361
303
227
122
6 / 0.05
6 / 0.05
6 / 0.05
6 / 0.05
6 / 0.05
6 / 0.05
507
453
402
351
288
211
89
7.2 / 0.06
7.2 / 0.06
7.2 / 0.06
7.2 / 0.06
7.2 / 0.06
7.2 / 0.06
7.2 / 0.06
541
490
442
394
342
275
197
8 / 0.07
8 / 0.07
8 / 0.07
8 / 0.07
8 / 0.07
8 / 0.07
8 / 0.07
505
384
250
110
CDD-12
CDD-12
CDD-12
CDD-12
CDD-12
CDD-12
925
0.18
0.18
0.18
0.18
0.18
0.18
4.1 / 0.03
4.1 / 0.03
4.1 / 0.03
4.1 / 0.03
559
451
335
205
1025
1125
1225
1325
1425
5.0 / 0.04
5.0 / 0.04
5.0 / 0.04
5.0 / 0.04
614
516
413
299
181
6.1 / 0.06
6.1 / 0.06
6.1 / 0.06
6.1 / 0.06
6.1 / 0.06
668
578
486
385
276
171
7.3 / 0.08
7.3 / 0.08
7.3 / 0.08
7.3 / 0.08
7.3 / 0.08
7.3 / 0.08
723
640
555
465
369
267
172
8.6 / 0.10
8.6 / 0.10
8.6 / 0.10
8.6 / 0.10
8.6 / 0.10
8.6 / 0.10
8.6 / 0.10
778
701
622
541
453
360
267
180
10.0 / 0.12
10.0 / 0.12
10.0 / 0.12
10.0 / 0.12
10.0 / 0.12
10.0 / 0.12
10.0 / 0.12
10.0 / 0.12
620
522
375
CDD-25
CDD-25
CDD-25
CDD-25
775
875
0.25
0.25
0.25
0.25
2.8 / 0.07
2.8 / 0.07
2.8 / 0.07
701
3.8 / 0.10
617
506
3.8 / 0.10
3.8 / 0.10
781
706
618
495
975
4.9 / 0.14
4.9 / 0.14
4.9 / 0.14
4.9 / 0.14
861
793
719
624
491
1075
5.8 / 0.19
5.8 / 0.19
5.8 / 0.19
5.8 / 0.19
5.8 / 0.19
911
838
756
656
532
CDD-30
CDD-30
CDD-30
CDD-30
CDD-30
CDD-30
1100
1200
1300
1400
1500
1600
0.25
0.25
0.25
0.25
0.25
0.25
6.3 / 0.07
6.3 / 0.07
6.3 / 0.07
6.3 / 0.07
6.3 / 0.07
994
927
854
771
672
543
7.4 / 0.09
7.4 / 0.09
7.4 / 0.09
7.4 / 0.09
7.4 / 0.09
7.4 / 0.09
1077
1015
950
880
793
698
568
8.6 / 0.11
8.6 / 0.11
8.6 / 0.11
8.6 / 0.11
8.6 / 0.11
8.6 / 0.11
8.6 / 0.11
1160
1103
1044
979
907
824
733
606
10 / 0.14
10 / 0.14
10 / 0.14
10 / 0.14
10 / 0.14
10 / 0.14
10 / 0.14
10 / 0.14
1243
1190
1135
1076
1015
940
863
775
654
11.5 / 0.17
11.5 / 0.17
11.5 / 0.17
11.5 / 0.17
11.5 / 0.17
11.5 / 0.17
11.5 / 0.17
11.5 / 0.17
11.5 / 0.17
1326
1276
1225
1171
1114
1053
980
906
824
13.1 / 0.21
13.1 / 0.21
13.1 / 0.21
13.1 / 0.21
13.1 / 0.21
13.1 / 0.21
13.1 / 0.21
13.1 / 0.21
13.1 / 0.21
6
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CDD DIRECT DRIVE DOWNBLAST FANS
PERFORMANCE
0.125” S.P.
CFM
0.25” S.P.
CFM
0.375” S.P.
CFM
0.50” S.P.
CFM
0.625” S.P.
CFM
0.75” S.P.
CFM
0.875” S.P.
CFM
0” S.P.
CFM
1” S.P.
CFM
MTR
HP
MODEL
CDD-33
RPM
1100
SONE/BHP SONE/BHP SONE/BHP SONE/BHP SONE/BHP SONE/BHP SONE/BHP SONE/BHP SONE/BHP
859
783
715
635
535
0.33
0.33
0.33
0.33
0.33
0.33
6.3 / 0.09
6.3 / 0.09
6.3 / 0.09
6.3 / 0.09
6.3 / 0.09
938
868
803
739
657
555
CDD-33
CDD-33
CDD-33
CDD-33
CDD-33
1200
1300
1400
1500
1600
7.5 / 0.12
7.5 / 0.12
7.5 / 0.12
7.5 / 0.12
7.5 / 0.12
7.5 / 0.12
1016
951
890
833
765
685
579
8.7 / 0.15
8.7 / 0.15
8.7 / 0.15
8.7 / 0.15
8.7 / 0.15
8.7 / 0.15
8.7 / 0.15
1094
1034
975
923
868
799
721
617
10.1 / 0.19
10.1 / 0.19
10.1 / 0.19
10.1 / 0.19
10.1 / 0.19
10.1 / 0.19
10.1 / 0.19
10.1 / 0.19
1172
1116
1060
1010
961
904
839
763
667
11.6 / 0.23
11.6 / 0.23
11.6 / 0.23
11.6 / 0.23
11.6 / 0.23
11.6 / 0.23
11.6 / 0.23
11.6 / 0.23
11.6 / 0.23
884
13.1 / 0.28
1250
1198
1145
1097
1051
1004
945
812
13.1 / 0.28
13.1 / 0.28
13.1 / 0.28
13.1 / 0.28
13.1 / 0.28
13.1 / 0.28
13.1 / 0.28
13.1 / 0.28
1631
1510
1375
1210
1015
791
CDD-50
CDD-50
CDD-50
CDD-50
CDD-50
1050
1150
1250
1350
1450
0.5
0.5
0.5
0.5
0.5
8.4 / 0.13
8.4 / 0.13
8.4 / 0.13
8.4 / 0.13
8.4 / 0.13
8.4 / 0.13
1787
1677
1557
1426
1258
1074
866
9.7 / 0.17
9.7 / 0.17
9.7 / 0.17
9.7 / 0.17
9.7 / 0.17
9.7 / 0.17
9.7 / 0.17
1942
1841
1735
1618
1480
1323
1151
964
11.3 / 0.22
11.3 / 0.22
11.3 / 0.22
11.3 / 0.22
11.3 / 0.22
11.3 / 0.22
11.3 / 0.22
11.3 / 0.22
2097
2004
1909
1801
1693
1550
1402
1243
1079
13 / 0.27
13 / 0.27
13 / 0.27
13 / 0.27
13 / 0.27
13 / 0.27
13 / 0.27
13 / 0.27
13 / 0.27
2253
2166
2078
1981
1880
1767
1635
1494
1346
14.8 / 0.34
14.8 / 0.34
14.8 / 0.34
14.8 / 0.34
14.8 / 0.34
14.8 / 0.34
14.8 / 0.34
14.8 / 0.34
14.8 / 0.34
1686
1532
1356
1141
CDD-75
CDD-75
CDD-75
CDD-75
CDD-75
775
875
0.75
0.75
0.75
0.75
0.75
7.1 / 0.22
7.1 / 0.22
7.1 / 0.22
7.1 / 0.22
1904
1768
1617
1449
1248
8.8 / 0.31
8.8 / 0.31
8.8 / 0.31
8.8 / 0.31
8.8 / 0.31
2121
2000
1870
1729
1569
1384
1086
975
10.6 / 0.43
10.6 / 0.43
10.6 / 0.43
10.6 / 0.43
10.6 / 0.43
10.6 / 0.43
10.6 / 0.43
2339
2230
2116
1989
1859
1709
1540
1294
1075
1175
12.7 / 0.57
12.7 / 0.57
12.7 / 0.57
12.7 / 0.57
12.7 / 0.57
12.7 / 0.57
12.7 / 0.57
12.7 / 0.57
2557
2457
2354
2243
2126
2001
1865
1712
1523
14.9 / 0.75
14.9 / 0.75
14.9 / 0.75
14.9 / 0.75
14.9 / 0.75
14.9 / 0.75
14.9 / 0.75
14.9 / 0.75
14.9 / 0.75
2366
2251
2134
2003
1866
1703
1526
1331
1102
CDD-85
CDD-85
CDD-85
1150
1250
1350
0.75
0.75
0.75
11.1 / 0.25
11.1 / 0.25
11.1 / 0.25
11.1 / 0.25
11.1 / 0.25
11.1 / 0.25
11.1 / 0.25
11.1 / 0.25
11.1 / 0.21
2572
2467
2359
2244
2122
1987
1837
1674
1499
12.8 / 0.33
12.8 / 0.33
12.8 / 0.33
12.8 / 0.33
12.8 / 0.33
12.8 / 0.33
12.8 / 0.33
12.8 / 0.33
12.8 / 0.33
2778
2681
2581
2480
2367
2254
2122
1984
1834
14.7 / 0.41
14.7 / 0.41
14.7 / 0.41
14.7 / 0.41
14.7 / 0.41
14.7 / 0.41
14.7 / 0.41
14.7 / 0.41
14.7 / 0.41
7
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CDB & CDD DOWNBLAST FANS
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