CCD7_Flyer
2/7/07
9:32 AM
Page 1
4509 Springfield Street
Dayton, OH 45431
Phone: 937.253.2000
www.lauparts.com
A Perfect Solution to a Variety of Applications
The CCD7 Advantage
Lau's CCD7 is the most versatile ceiling
damper in the industry.
With multiple ways to install the CCD7, there's almost no way to install it wrong
Use your own boot or plenum, or order with a factory-installed boot or plenum, for
maximum convenience
The damper may be installed before or after the gypsum board is installed
Refer to Lau's UL approved installation instructions for more information
Important Note:
The applications shown below are UL555C listed installations; other manufacturers refer to ARL (Applied Research Laboratories)
or Warnock Hersey labeled products for different installations and applications.
Save time and money with
Lau’s CCD7 Damper!
(Accessories shown below are
also available to help meet
any requirement.)
Installation
Instructions
Lau
CCD7
Pottorff
CFD-521
Nailor
Type 0755
Lloyds
CRD50-BT
Crown
CRD50
Return Air
Plenum
(ductless)
N/A
N/A
N/A
N/A
90º Boot
N/A
N/A
N/A
N/A
Straight Boot
N/A
N/A
N/A
N/A
End Boot
N/A
N/A
N/A
N/A
Through Ceiling
Membrane
Penetration
N/A
N/A
N/A
N/A
Steel Plenum Box
N/A
Ductboard
Plenum Box
N/A
Steel Insulated
Plenum Box
N/A
The versatility of Lau’s CCD7 dampers will allow you to save both time and money!
CCD7_Flyer
2/7/07
9:32 AM
Page 2
4509 Springfield Street
Dayton, OH 45431
Phone: 937.253.2000
www.lauparts.com
A Perfect Solution to a Variety of Applications
Ceiling Radiation Dampers
Ceiling
Components
Floor/Ceiling and Roof/Ceiling Comparison Chart
ANSI/UL 263
L528
Lau
CCD7
L586
Pottorff
CFD-521
L521
Nailor
Type 0755
L550
Lloyds
CRD50-BT
L563
Crown
CRD50
L563
Fire Resistence
Rating (Hours)
1 Hr.
1 Hr.
1 Hr.
1 Hr.
1 Hr.
1 Hr.
Trusses
No Penetrations
Allowed*
Similar to
L528
Similar to
L528
Similar to
L528
Similar to
L528
Similar to
L528
Gypsum Board
One Layer
Required
Similar to
L528
Similar to
L528
Similar to
L528
Similar to
L528
Similar to
L528
Similar to
L528
Similar to
L528
Similar to
L528
Similar to
L528
Similar to
L528
Damper only;
Plenum box
not required
Damper in steel;
Plenum box
required
Damper in
insulated;
Steel plenum
box required
Damper in
insulated;
Steel plenum
box required
Damper in
insulated;
Steel plenum
box required
Multiple Layers
Optional
Steel Framing
Furring channels, or
Members
resilient channels, or
(Furring Channels)
steel framing
(Resilient Channels)
members
Ceiling Radiation
Damper
No damper
allowed
Air Duct
None
Not required
Class 0 or 1
Class 0 or 1
Class 0 or 1
Class 0 or 1
Grill
None
Not required
Steel grill
Steel grill
Steel grill
Steel grill
Membrane
Penetration
No
Yes
No
No
No
No
Save time and money with
Lau’s CCD7 Damper!
(Accessories shown below are
also available to help meet
any requirement.)
* Parallel cord truss, spaced a mx. 24 inches; C-C fabricated from nom 2 by 4 inch lumber- with lumber orientated vertcally or horizontally; Min truss depth
is 18 inches
UL Wood Joist Assemblies
Comparison Chart
Construction
ANSI/UL 263
L501
Lau
CCD7
L501*
Pottorff
CFD-521
Nailor
Type 0755
Lloyds
CRD50-BT
Crown
CRD50
Hour Rating
1 Hr.
1 Hr.
N/A
N/A
N/A
N/A
Damper
Details
See design
Damper with
insulated box
N/A
N/A
N/A
N/A
Wood
Joist
Wood joist
Min. 2” x 10”
spaced on 16” C-C.
Brdiging or blocking
required.
Same as
L501
N/A
N/A
N/A
N/A
Gypsum
Board
One layer required
5/8” thick
Type C Gypsum;
Multiple layers
optional
Same as
L501
N/A
N/A
N/A
N/A
Air Duct
See design
Class 0 or 1
N/A
N/A
N/A
N/A
Grill
See design
Steel grill
N/A
N/A
N/A
N/A
* Lau’s CCD7 is also UL listed for wood joist ceiling designs L502, L503, L506, L507, L508, L512, L513, L514, L515, L516, L517, L518, L519, L522,
L523, L533, L535, L537 and L545.
** Lau’s CCD7 is the only ceiling radiation damper that is UL listed for steel joint assemblies (design L524.)
The versatility of Lau’s CCD7 dampers will allow you to save both time and money!
LAD1778-0107