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Control Dampers
2 www.carnes.com
Model FDCB (Opposed Blade)
FDHB (Parallel Blade)
Aluminum Low Leakage Control Dampers
t Standard Specifications
Frame: .081 extruded aluminum
Blades: .125 extruded aluminum
Bearings: bronze oilite
Linkage: *concealed in frame
Axles: 1/2ӯ cast zinc with thrust bushing
Control Shaft: 1/2” x 6” long outboard support
bearing supplied with all single section dampers for
field mounted actuators. Factory-installed jackshaft
supplied with all multi-section dampers.
Damper
Width x Height
1 in. w.g. Class 4 in. w.g. Class 8 in. w.g. Class
12” x 12” 3.6 (Class 1A) 7.6 (Class 1A) 10.3 (Class 1A)
36” x 36” 0.5 (Class 1A) 5.6 (Class 1A) 20.8 (Class 1A)
Leakage Performance
Leakage - L/s/m² (ft³/min/ft²)
Note: At 1” w.g. 12” x 12” damper leaks 3.6 cfm per square foot.
Note: At 1” w.g. 36” x 36” damper leaks 0.5 cfm per square foot.
Note: Blade and jamb seals are required to meet the leakage
rates shown above.
4-1/2”
Undersized 1/4”
t Standard Specifications
Frame: roll formed galvanized steel
Blades: 4” - 7” wide, 16 gauge galvanized steel
Bearings: nylon
Linkage: concealed in frame
Axles: 3/8” square plated steel
Control Shaft: Ø1/2” x 4-1/2” long shaft supplied
with all single section dampers for field mounted
actuators. Factory-installed jackshaft supplied with all
multiple section dampers.
W
H
5”
Optional
Stainless steel
jamb seals
Vinyl blade seals
Model FDNB (Opposed Blade)
FDQB (Parallel Blade)
Galvanized 3V Blade Control Dampers
Damper
Width x
Height
1 in. w.g.
Class
4 in. w.g.
Class
8 in. w.g.
Class
*Torque
(per sq. ft.)
36” x 36” Class III Class III Class III 5.55 lbs-in
Leakage Performance
*Torque applied to hold damper in closed position.
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www.carnes.com 3
Control Dampers
t Standard Specifications
Frame: .081 extruded aluminum (6063-T5)
Blades: hollow airfoil with .375” thick end nose
(6063-T5) extruded aluminum
Extended Shaft: 1/2” diameter
Bearing: bronze oilite
Linkage: concealed in frame
Pivot Axels: zinc with thrust bushings
Blade Seals: removable EPDM (250°F)
Jamb Seals: stainless steel (compression)
Options
- Insulated Blades (Foam Filled Blades)
Damper
Width x Height
1 in. w.g. Class 4 in. w.g. Class
12” x 12” Class I Class II
24” x 24” Class I Class I
36” x 36” Class I Class I
12” x 48” Class III Class III
48” x 12” Class I Class I
60” x 36” Class II Class II
Leakage Performance (Forward Flow)
Model FAAA (Opposed Blade)
FABA (Parallel Blade)
Aluminum Airfoil Blade Control Dampers
*H
4.5”
*Undersized 1/4”
*W
Model FACA (Opposed Blade)
FADA (Parallel Blade)
Galvanized Airfoil Blade Control Dampers
t Standard Specifications
Frame: rollformed galvanized steel
Blades: 5”-7” wide galvanized steel airfoil (double
skin construction of 14 ga equivalent thickness)
Extended Shaft: 1/2” diameter
Bearing: nylon
Linkage: concealed in frame
Axels: zinc plated
Blade Seals: PVC (175°F)
Jamb Seals: stainless steel (compression)
Options
- Insulated Blades (1/2” Fiberglass)
*H
5”
*Undersized 1/4”
Standard
*W
Damper
Width x Height
1 in. w.g. Class 4 in. w.g. Class 8 in. w.g. Class
12” x 12” Class I Class II Class II
24” x 24” Class I Class I Class I
36” x 36” Class II Class II Class II
12” x 48” Class III Class III Class II
48” x 12” Class I Class I Class I
60” x 36” Class II Class II Class II
Leakage Performance (Forward Flow)
Minimum Size: 8”w x 8”h
Maximum Size: 60”w x 72”h (single section)
Maximum Multi-Section: Unlimited
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Manual Balancing Dampers
4 www.carnes.com
Model FAEA
Model FAEA is an ideal manual balancing damper for duct up to 36” x 12”.
Model FAFA
The model FAFA is a G-90 galvanized steel damper with factory mounted heavy duty locking
hand quadrant designed especially for manual balancing applications. It is easy to install, seal
and becomes part of the duct work.
H
Undersized
approx. 1/4”
W
MODEL FAFA
Approx. 1/8” O.D. Undersized
8”
t Standard Specifications
Shaft: 1/2” round solid aluminum (thru 30”)
3/4” round solid steel (32” thru 40”)
Bearing: molded sythetic nylon 6/6
Diameter Length Body & Blade
4 - 10” 8” 20 ga.
12 - 18” 8” 20 ga.
20 - 30” 8” 20 ga.
32 - 40” 8” 18 ga.
t Standard Specifications
Frame: .081” aluminum, 4-1/2” deep
Blades: .125” aluminum
Bearing: nylon 6/6
Hand Quadrant: 1/2” cast zinc
Maximum Velocity: 2000 fpm
Variations
- 2” Stand Off Quadrant
- All Stainless Steel including Quadrant
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Round Dampers
Model FAHA
Round Control Dampers
Model FAJA
Round Butterfly Backdraft Dampers
MODEL FAHA
Approx. 1/8” O.D. Undersized
8”
Diameter Length Body & Blade
4 - 10” 8” 24 ga.
12 - 18” 8” 20 ga.
20 - 30” 8” 20 ga.
32 - 46” 8” 18 ga.
t Standard Specifications
Shaft:
1/2” round solid aluminum (thru 30”)
3/4” round solid steel (32” thru 46”)
Bearing:
Bronze oilite (175°F)
Blade Seals:
Crosslinked closed cell (200°F)
Mounting Plate:
20 ga. galvanized steel
4”
Dia.
7”
MODEL FAJA
Approx. 1/8” Undersized
8” Depth
Dimensions
Maximum Velocity
(FPM)
Diameter Length
4 - 10” 8” 2200
12 - 18” 8” 1900
t Standard Specifications
EDPM rubber gasket in closed position for minimum
leakage
Aluminum spring loaded butterfly damper (.025”
alum. blades)
Requires .04 to .08 inches w.c. to begin to open
May be installed in any position
Sizes Available
4”, 5”, 6”, 7”, 8”, 9”, 10”, 12”, 14”, 16” & 18”
*Dia.
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Counterbalanced Backdraft Dampers
6 www.carnes.com
Model FAKA (Aluminum)
Model FAMA (Galvanized)
FANA (304 S.S.)
FAPA (316 S.S.)
The FAKA is a vertical or horizontal mounted
backdraft damper that is designed to allow airflow
and prevent reverse airflow.
Ratings
Pressure: 3.5” w.g.
Velocity: 4000 fpm
Temperature: 180°F
t Standard Specifications
Frame: .060” thick extruded alum.
Blades: .060” thick extruded alum.
w/counterbalance weights
Blade Seal: EPDM rubber
Linkage: 1/2” x 1/8” aluminum bar (in airstream)
Axles: zinc plated steel
Brushings: nylon
*H
2-1/4”
*W & H dimensions are approx. 1/4” undersized.
Blade Detail
*W
Full
Open
Closed
4-7/16”
Full Open
3-3/8”
Blade Seal
Linkage Bracket
Frame Detail
Mitered Corners
Flanged Frame
(Downstream)
Flanged Frame
(Upstream)
Airflow
Airflow
Ratings
Pressure: 4” w.g. - differential pressure
Velocity: 4000 fpm
Temperature: 180°F
t Standard Specifications
Frame: 16 ga. galvanized steel
Blades: 16 ga. gal. steel w/counterbalance weights
Linkage: zinc plated concealed
Axles: 1/2” diameter cast zinc & steel
Blade Seal: PVC (180°F)
Bearings: bronze oilite
Size Limitations
Minimum Size: 6”w x 6”h
Maximum Single Section Size: 48”w x 48”h
Multiple Panel Maximum Size: unlimited
*H
*Standard 1/4” undersized.
*W
Counter Weight
Blade
4-1/2”
Damper Performance
Damper
Width
Max.
Back
Pressure
Max.
System
Velocity
Leakage*
Blades
Start to
Open
Blades
Fully
Open
% of
Max.
Flow
CFM/
Sq. Ft.
48” (1219) 4.0” w.g.
4000
FPM
.61 15
**.01”
w.g.
**.05”
w.g.
36” (914) 8.0” w.g.
4000
FPM
.6 15
24” (610)
12.0”
w.g.
4000
FPM
.72 18
12” (305)
16.0”
w.g.
4000
FPM
1 24
*Leakage information based on pressure differential of 1” w.g.
tested per AMCA Std. 500.
**Set at least resistant to open.
Counterbalance
Weight Detail
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www.carnes.com 7
Backdraft Dampers and Motorized Dampers
t Standard Specifications
Frame: .036” (1.6mm) 6063T6 aluminum
Blades: 24 gauge aluminum with double stiffening
breaks
Finish: mill aluminum
Bearings: self lubricating nylon
Blade Pivots: 3/16” (5mm) plated steel
Linkage: galvanized steel; double linkage for width
exceeding 20” (508mm)
Seals: felt between blades and polyurethane
sponge at sill
Maximum Panel Size: 50”w x 72”h (1270mm x
1829mm)
Maximum Velocity: 1500 FPM (8 M/S)
Maximum Differential Pressure: 1” WG (250 N/M2)
Maximum Temperature: Damper 250°F (95°C); Motor
130°F (55°C)
The JDHAA and JDHAM dampers can be installed
either vertically or horizontally.
Model JDHAA (Backdraft Damper)
JDHAM (Motorized Damper)
Lover and Damper 10 Day Quick Ship
DAMPER QUICK SHIP
Carnes - A Damper Design For Every Application.
LQS10
All models of Carnes dampers (except models JDHAA and JDHAM) are available on a 6 day and 10
day quick ship.
Lover and Damper 6 Day Quick Ship
LQS6
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