Carnes JDHAA Installation Manual
C-1
ACCESSORIES
Control Dampers - Galvanized
For All Models of Louvers and Penthouses
Model: FDNB Opposed Blade Control Damper, FDQB Parallel Blade Control Damper
Model FDNB
Standard Specifications
Ratings: Level II Rating
Frame: 16 gauge galvanized
Blades: 16 gauge galvanized
Bearings: bronze oilite
Linkage: concealed in frame
Axles: 1/2ӯ plated steel
Control Shaft: Ø1/2” x 6” long outboard support bearing sup-
plied with all single section dampers for field mounted actuators.
Factory-installed jackshaft supplied with all multiple section
dampers.
Maximum Panel Size: 52”w x 72”h (single section)
Maximum assembled multi-section: 72”w x 42”h
Minimum Panel Size: 5”w x 4”h
8”h and under - single blade
Options
• Blade Seals PVC (175°F)
• Compression Jamb Seals (stainless steel)
• Header Plates (end flange)
• Hand Quadrant
• Factory Installed Actuators
• Position Switch
• Face and By-pass Damper
• Chain Operator
• Single Flange
• Double Flange
• Bolt Holes in Flange
• Stainless Steel (epoxy coated linkage)
(must have 6-1/2” deep frame)
• 304 Stainless Steel Construction
• 6-1/2” deep Frame
• 1” Insulated Double Skin Blades
• Heresite Coated (air dry)
• Epoxy Coated (powder coated)
W
H
4-1/2”
1” Insulated Blades
Optional
Double skin
1” insulated blades
Stainless steel
jamb seals
Vinyl blade seals
12” wide -3500 FPM
24” -2800
36” -2300
48” -2100
52” -2300
FPM Table
3 4 5 6 7 8 9 10111213
48”
(1219)
36”
(914)
24”
(610)
12”
(305)
Maximum Damper
Section Width
Maximum Design Total Static Pressure Inches Water Gage
Pressure Limitations
C-2
ACCESSORIES
Low Leakage Control Dampers - Aluminum
For All Models of Louvers and Penthouses
Model: FDCB Opposed Blade Control Damper, FDHB Parallel Blade Control Damper
Model FDCB
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.
Maximum Size: 52”w x 72”h (single section)
Multi-section unlimited.
Minimum Size: 5”w x 4”h. 8” and under single blade.
*Over 36” wide or 48” high, blade linkage will be modified.
Options
• .125 Extruded Aluminum Frame (box frame)
• 1-1/2” .125 Extruded Aluminum Flanged Frame
• Blade Seals PVC (175°F)
• Blade Seals Silicone (400°F & #304 stainless steel bushing)
• Compression Jamb Seals (stainless steel)
• Hand Quadrant
• Factory Installed Pneumatic or Electric Actuators
• Position Switch
• Face and By-pass Damper
• Chain Operator
• Heresite Coated (air dry)
• Epoxy Coated (powder coated at 415°)
• Explosion-proof Enclosure for Actuator
Size Tested: 36”w x 36”h
12” wide -2600 FPM
24” -2200
36” -2000
48” -1700
52” -1600
FPM Table
4-1/2”
6-1/4”
Undersized 1/4”
Jackshafting provided over 52” wide
Pressure - up to 3” w.g. See pressure limit table
0 2 3
48”
36”
24”
12”
Maximum Damper
Section Width
Maximum Design Total Static
Pressure Inches Water Gage
Pressure Limitations
C-3
ACCESSORIES
Low Leakage Control Dampers
Model: FDCB and FDHB
Damper
Width x Height
1 in. w.g. Class 4 in. w.g. Class 8 in. w.g. Class
36” x 36” 0.5 (Class 1A) 5.6 (Class 1A) 20.8 (Class 2)
Leakage Performance
Leakage - L/s/m² (FT³/min/ft²)
Note: At 1” w.g. damper leaks 0.5 cfm per square foot
AMCA Standards
Leakage Classification per AMCA publication 511-99
Leakage,
ft³/min/ft²
Required Rating Extended Ranges (optional)
Class
0.25 kPa (1”) 1.0 kPa (4”) 2.0 kPa (8”) 3.0 kPa (12”)
1A 15.2 (3) 40.6 (8) 55.9 (11) 71.1 (14)
1 20.3 (3) 40.6 (8) 55.9 (11) 71.1 (14)
2 50.8 (10) 102 (20) 142 (28) 178 (35)
3 203 (40) 406 (80) 569 (112) 711 (140)
Pressure
Test device setup with inlet chamber
Ratings shown are based on tests made in accordance with AMCA standard 500.
Free Area Velocity
ft/min (m/s)
Pressure drop
w.g. (PA)
CFM
392 (1.99) .005 (1.24) 3528
789 (4.01) .02 (4.97) 7100
1208 (6.14) .05 (12.42) 10,877
1598 (8.12) .09 (22.35) 14,382
2006 (10.19) .14 (34.77) 18,061
Pressure Drop
Static pressure drop (inches w.g.)
Free Area Velocity (ft/min)
Based on standard air - .075 lbs per cubic foot
FDCB, FDHB size tested: 36 x 36
Test device setup with inlet and outlet ducts
Blade and jamb seal options must be ordered to achieve leakage
rates listed above.
C-4
ACCESSORIES
Backdraft Dampers & Motorized Dampers
Horizontal or Vertical Exhaust Dampers; For All Models of Louvers and Penthouses
Model: JDHAA Automatic/Gravity, JDHAM Motorized, JDHAC Chain Operated
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/M
2
)
Maximum Temperature: Damper 250°F (95°C); Motor 130°F
(55°C)
Options
• POSC (Power Open-Spring Close)
• Standard Motor Voltage is 115-230/1/60
• Optional 24 VAC or 575 VAC
• Optional Transformers
• Optional Finishes
120V 240V
Idle Speed (RPM) 1.8 1.8
Idle Amps 0.244 0.137
Stall Amps 0.261 0.146
Face View
Model JDHAA Automatic
Model JDHAC Chain Operated
Model JDHAM Motor Operated
Spring Assist is field installed and is
recommended for face
velocity less than 600 FPM.
CAUTION: Motor kits are not suitable for
use in atmospheres or airflows containing
explosive or flammable products.
Actual Size = Nominal Size -1/4” (6mm)
Motor kits ship loose for field installation
C-5
ACCESSORIES
Manual Operators for Louvers & Dampers
Hand Quadrant
Operator #1
1/2” round shaft only
Hand Quadrant
Operator #2
Heavy Duty
1/2” and 3/4” round shafts
Worm Gear with Hand Wheel
Operator #3
Heavy Duty
1/2” and 3/4” round shafts
Worm Gear with Chain Wheel
Operator #4
Heavy Duty
1/2” and 3/4” round shafts
Pull Chain
Operator #5
10 ft. chain standard
Heavy Duty Rotary
Hand Crank Operator #6
Mounted in the airstream
Primarily used on louvers
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