Ceiling Damper for Horizontal Mounting in Air Duct Outlets in 3-Hour non-combustible and 1-Hour combustible ceiling locations.
|
Construction and Size Limitations shall be as follows:
|
|
|
Size Limitations, Inches
|
|
Damper Type*
|
Damper Shape
|
Protection on Back of Damper Blades
|
Max Area
+, In3
|
Max Width ++
|
Max Length
|
Max Diameter
|
Min Width ++
|
Min Length
|
Min Diameter
|
| CFD-2* |
Square or
Rectangular |
Wallboard |
324
|
24
|
24
|
-
|
5
|
4
|
-
|
| CFDR- 2* |
Round |
Wallboard |
324
|
-
|
-
|
20
|
-
|
-
|
5
|
| CFD- 3.5 * |
Square or
Rectangular |
Ceramic Paper |
70
|
17
|
14
|
-
|
5
|
4
|
-
|
| CFDR-3.5* |
Round |
Ceramic Paper |
80
|
-
|
-
|
10
|
-
|
-
|
5
|
Ceiling Damper for horizontal mounting in air duct outlets in 3-Hour non-combustible and 1-Hour combustible ceiling locations.
|
Construction and Size Limitations shall be as follows:
|
|
|
Size Limitations, Inches
|
|
Damper Type*
|
Damper Shape
|
Protection on Back of Damper Blades
|
Max Area +, Inch3
|
Max Width ++
|
Max Length
|
Max Diameter
|
Min Width ++
|
Min Length
|
Min Diameter
|
| CFD-2 +++ |
Square or Rectangular |
Wallboard |
324
|
24
|
24
|
-
|
5
|
4
|
-
|
| CFD-2W +++ |
Square or Rectangular |
Wallboard |
324
|
24
|
24
|
-
|
5
|
4
|
-
|
| CFD 2.5 |
Square or Rectangular |
Wallboard & Ceramic Paper |
324
|
24
|
24
|
-
|
5
|
4
|
-
|
| CFS 2.5W |
Square or Rectangular |
Wallboard & Ceramic Paper |
324
|
24
|
24
|
-
|
5
|
4
|
-
|
| CFDR-2+++ |
Round |
Wallboard |
324
|
-
|
-
|
20
|
-
|
-
|
5
|
| CFDR-2W +++ |
Round |
Wallboard |
324
|
-
|
-
|
20
|
-
|
-
|
5
|
| CFDR- 2.5 |
Round |
Wallboard & Ceramic Paper |
324
|
-
|
-
|
20
|
-
|
-
|
5
|
| CFDR-2.5W |
Round |
Wallboard & Ceramic Paper |
324
|
-
|
-
|
20
|
-
|
-
|
5
|
| CFD- 3 |
Square or Rectangular |
None |
70
|
17
|
14
|
-
|
5
|
4
|
-
|
| CFD-3W |
Square or Rectangular |
None |
70
|
17
|
14
|
-
|
5
|
4
|
-
|
| CFD-3.5+++ |
Square or Rectangular |
Ceramic Paper |
70
|
17
|
14
|
-
|
5
|
4
|
-
|
| CFD-3.5W +++ |
Square or Rectangular |
Ceramic Paper |
70
|
17
|
14
|
-
|
5
|
4
|
-
|
| CFDR- 3 |
Round |
None |
80
|
-
|
-
|
10
|
-
|
-
|
5
|
| CFDR-3W |
Round |
None |
80
|
-
|
-
|
10
|
-
|
-
|
5
|
| CFSD- 2 |
Square or Rectangular |
Wallboard |
324
|
18
|
18
|
-
|
6
|
6
|
-
|
| CFSD-2W |
Square or Rectangular |
Wallboard |
324
|
18
|
18
|
-
|
6
|
6
|
-
|
| CFSD- 2.5 |
Square or Rectangular |
Wallboard & Ceramic Paper |
324
|
18
|
18
|
-
|
6
|
6
|
-
|
| CFSD-2.5W |
Square or Rectangular |
Wallboard & Ceramic Paper |
324
|
18
|
18
|
-
|
6
|
6
|
-
|
| CFSDR- 2 |
Round |
Wallboard |
113
|
-
|
-
|
12
|
-
|
-
|
6
|
| CFSDR-2W |
Round |
Wallboard |
113
|
-
|
-
|
12
|
-
|
-
|
6
|
| CFSDR- 2.5 |
Round |
Wallboard & Ceramic Paper |
113
|
-
|
-
|
12
|
-
|
-
|
6
|
| CFSDR-2.5W |
Round |
Wallboard & Ceramic Paper |
113
|
-
|
-
|
12
|
-
|
-
|
6
|
| CFSD- 3 |
Square or Rectangular |
None |
70
|
17
|
14
|
-
|
6
|
6
|
-
|
| CFSD-3W |
Square or Rectangular |
None |
70
|
17
|
14
|
-
|
6
|
6
|
-
|
| CFSD- 3.5 |
Square or Rectangular |
Ceramic Paper |
70
|
17
|
14
|
-
|
6
|
6
|
-
|
| CFSD-3.5W |
Square or Rectangular |
Ceramic Paper |
70
|
17
|
14
|
-
|
6
|
6
|
-
|
| CFSDR- 3 |
Round |
None |
80
|
-
|
-
|
10
|
-
|
-
|
6
|
| CSFDR-3W |
Round |
None |
80
|
-
|
-
|
10
|
-
|
-
|
6
|
| CFSDR- 3.5 |
Round |
Ceramic Paper |
80
|
-
|
-
|
10
|
-
|
-
|
6
|
| CSFDR-3W |
Round |
Ceramic Paper |
80
|
-
|
-
|
10
|
-
|
-
|
6
|
| CFDR-3.5+++ |
Round |
Ceramic Paper |
80
|
-
|
-
|
10
|
-
|
-
|
5
|
| CFDR-3.5W |
Round |
Ceramic Paper |
80
|
-
|
-
|
10
|
-
|
-
|
5
|
+ Area calculation:
(1) Round dampers - 0.785 x diameter²
(2) Square or rectangular dampers = length x width
++ Damper Width is parallel to blades
+++ Damper types, as described in this Section of the Procedures, are also Classified for use with CFD-5, CFDR-5, CFD-5W, CFDR-5W ceiling damper/thermal blanket assembly.
Ceiling Damper for horizontal mounting in air duct outlets in 3 hour non-combustible and 1 hour combustible ceiling locations.
|
Construction and Size Limitations shall be as follows:
|
|
|
SIZE LIMITATIONS, INCHES
|
|
Damper Type
|
Damper Shape
|
Protection On Back Of Damper Blades
|
Max Area
+, In2
|
Max Width ++
|
Max Length
|
Max. Dia.
|
Min Width ++
|
Min Length
|
Max. Dia.
|
| CFD-2W |
Square or Rectangular |
Wallboard |
324 |
24 |
24 |
- |
5 |
4 |
- |
| CFDR-2W |
Round |
Wallboard |
324 |
- |
- |
20 |
- |
- |
5 |
| CFD-3.5W |
Square or Rectangular |
Ceramic Paper |
70 |
17 |
14 |
- |
5 |
4 |
- |
| CFDR-3.5W |
Round |
Ceramic Paper |
80 |
- |
- |
10 |
- |
- |
5 |
*Manufacturer's Designation
Evaluated to the following:
Unless otherwise noted, assemblies in this section have been evaluated for conformance to the following standards:
UL-555, Fire Dampers & Ceiling Dampers
CAN/ULC-S112, Standard Method of Fire Test of Fire Damper Assemblies;
and are installed in accordance with the following:
NFPA-90A, Installation of Air Conditioning & Ventilating Systems.
Manufacturer's Instructions.
All assemblies are identified by all label bearing the wording, "Listed (Product)", a time interval, a serial number and the Warnock Hersey Certification Mark.
