Dimensional Drawing

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Better Airflow By Design
CFM
DIMENSIONS SUBJECT TO CHANGE WITHOUT NOTICE.
DRAWING NOT TO BE USED FOR CONSTRUCTION.
DOWNBLAST ROOF EXHAUSTER FAN
CDD SERIES DIRECT DRIVE SUBMITTAL
J. E. EVANS 13 MAR. 2008 CDD GENERAL SUBMITRTAL.dft
02 06 AUG. 2010 JEE
01 06 AUG. 2008 JEE
E
ROOF CURB
20 ga. STEEL CONST'N.
3.00" WIDE FLANGE
RECOMMENDED ROOF OPENING
D
RO
D
RO
PITCHED ROOF CURBS ARE
AVAILABLE FOR PITCHED ROOFS
EXAMPLE: 7 / 12 PITCH - 30' SLOPE
7
12
30°
FEATURES:
ROOF MOUNTED DRIECT DRIVE
UL 705 LISTED
SAFETY DISCONNECT C/W SPEED CONTROL
BIRD SCREEN PROTECTION
OPTIONS:
BACKDRAFT DAMPER
HINGED CONSTRUCTION
INSULATED ROOF CURB
PITCHED ROOF PREFAB CURB
ROOF CURB
BACKDRAFT DAMPER
ROOF
EXHAUST
W
HT
R
RO
C
B
BACKDRAFT DAMPER INSTALLATION
MODEL HT W B C R RO WEIGHT (lbs)
CDD-10 14.50 20.75 2.00 19.00 8.13 13.00 30
CDD-12
16.25 23.75 2.00 19.00 10.62 13.00 35
CDD-30
19.12 26.25 2.00 21.00 12.12 16.00 45
CDD-33
19.12 26.25 2.00 21.00 12.12 16.00 45
CDD-50
21.75 29.75 2.00 21.00 13.25 16.00 50
CDD-85
23.37 33.25 2.00 24.75 14.87 20.00 60
CDD SERIES DIRECT DRIVE CENTRIFUGAL EXHAUST FAN
DIMENSIONAL DATA (INCHES)
MODEL
DERO
CDD‐10 17.50 12.00 13.00
CDD‐12 17.50 12.00 13.00
CDD‐30 19.50 12.00 16.00
CDD‐33 19.50 12.00 16.00
CDD‐50 19.50 12.00 16.00
CDD‐85 23.00 12.00 20.00
PREFAB ROOF CURB
DIMENSIONAL DATA (INCHES)