Carnes FDCB User Manual

Volume Control Dampers

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Volume Control Dampers

Volume Control Dampers - Galvanized

Model: FDNB Opposed Blade Channel Frame, FDQB Parallel Blade Channel Frame,
FDPB Opposed Blade Flanged Frame, FDRB Parallel Blade Flanged Frame

Model FDNB and FDQB

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.
Maximum Panel Size: 48”w x 60”h (single section)
Maximum multi-section: unlimited
Minimum Panel Size: 6”w x 6”h
9”h and under - single blade

Options

• Vinyl Blade Seals

• 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 Bushings

• Heresite Coated (air dry)

• Epoxy Coated (powder coated)

• Stand Off Bracket, 2”

W

H

5”

Optional

Stainless steel
jamb seals

Vinyl blade seals

12” wide -3500 FPM
24” -2800
36” -2300
48” -2100

FPM Table

Volume Control Dampers

Volume Control Dampers

F-76 www.carnes.com

Galvanized Volume Control Dampers

Model: FDNB and FDQB

Ratings shown are based on tests made in accordance with AMCA standard 500.

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

Imperial Units (Forward Flow)

*Torque applied to hold damper in closed position.

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

Imperial Units (Back Flow)

*Torque applied to hold damper in closed position.

Damper

Width x Height

(mm)

250 Pa Class 1 kPa Class 2 kPa Class *Torque

915 x 915 Class III Class III Class III 6,394 grams-cm

Standard International Units (Forward Flow)

*Torque applied to hold damper in closed position.

Damper

Width x Height

(mm)

250 Pa Class 1 kPa Class 2 kPa Class *Torque

915 x 915 Class III Class III Class III 6,394 grams-cm

Standard International Units (Back Flow)

*Torque applied to hold damper in closed position.

Air leakage is based on operation
between 50°F to 104°F. All data
corrected to represent air density
of 0.075 lbs/ft.

3

Air leakage is based on operation
between 10°C to 40°C. All data
corrected to represent air density
of 1.201 kg/m.

3

PL-1

PL-7 PL-X

PL-Y

M

AIRFLOW

AIRFLOW

Figure 5.4 - Test Device Setup with Outlet Chamber

Note: For pressure drop testing an outlet

chamber shall have a cross sectional
area at least fifteen times the free
area of the device being tested.

P

s7

W + H

75mm ± 6mm

(3 in. ± .025 in.)

Device

being

tested

M/2 min.

M/2 min.

Figure 6.3 - Airflow Rate Measurement Setup -

Multiple Nozzle Chamber on Fan Inlet

M

M/2 min.

P

s7ΔPn

PL-A

PL-B PL-5 PL-6

Any

angle

Variable
exhaust

system

Settling means

M/2 min.

38mm ± 6mm
(1.5 in. ± .025 in.)

38mm ± 6mm
(1.5 in. ± .025 in.)

t

d5

Leakage, ft.3/min/ft.

2

Required Rating Extended Ranges (optional)

Class

Pressure

1” 4” 8” 12”

I 4 8 11 14

II 10 20 28 35

III 40 80 112 140

All data corrected to represent standard air at a density of 0.075 lbs/ft.

3

Leakage, L/s/m.

3

Required Rating Extended Ranges (optional)

Class

Pressure

0.25 kPa 1.0 kPa 2.0 kPa 3.0 kPa

I 20.3 40.6 55.9 71.1

II 50.8 102 142 178

III 203 406 569 711

D6= Throat dia. of largest nozzle

2.5 D

6

min.

Volume Control Dampers

www.carnes.com F-77

Volume Control Dampers

PL-1

PL-2

PL-4

PL-Z

AIRFLOW

AIRFLOW

Figure 5.3 - Test Device Setup with Inlet and Outlet Ducts

P

s9

D ± 0.02D

Device being tested

6D min.

Figure 6.5 - Airflow Rate Measurement Setup -

Multiple Nozzle Chamber on Fan Inlet

M

M/5 min.

P

s5ΔPn

PL-A

PL-B

PL-5

PL-6

Variable
exhaust

system

Settling means

M/2 min.

38mm ± 6mm
(1.5 in. ± .025 in.)

38mm ± 6mm
(1.5 in. ± .025 in.)

t

d5

Galvanized Volume Control Dampers

Model: FDNB and FDQB

PL-9PL-YPL-X

P

s4

Inlet cone required
if attached to plenum

10D min.

D ± 0.02D

D

6

= Throat dia. of

largest nozzle

Settling means

2.5 D

6

min.

Pressure Drop

Static Pressure Drop (inches w.g.)

FREE AREA VELOCITY (FT/MIN)

Standard air - .075 lbs per cu ft
Ratings do not include the effects of a wire birdscreen
Test based on a 48” x 48” test size, 15 min test duration

Free Area Velocity

ft/min (m/s)

Pressure Drop

in w.g. (Pa)

1000 (5.08) 0.055
1500 (7.62) 0.100

2000 (10.16) 0.175

36 x 36

From supply system and
flow measuring section

Volume Control Dampers

Volume Control Dampers

F-78 www.carnes.com

Low Leakage Volume Control Dampers - Aluminum

Model: FDCB Opposed Blade Channel Frame, FDHB Parallel Blade Channel Frame,
FDSB Opposed Blade Flanged Frame, FDTB Parallel Blade Flanged Frame

Model FDCB and FDHB

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.
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 and 12”w x 12”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

Volume Control Dampers

www.carnes.com F-79

Volume Control Dampers

Aluminum Low Leakage Volume 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

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.

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

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

407 (2.0) .040 (1.24) 407

820 (4.1) .150 (4.97) 820
1234 (6.3) .340 (12.42) 1234
1641 (8.3) .610 (22.35) 1641

2057 (10.4) .950 (34.77) 2057

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

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

36” x 36” (914mm x 914mm)

12” x 12” (305mm x 305mm)

PL-2

AIRFLOW

Figure 5.5 - Test Device Setup with Inlet Chamber

P

s6

Device

being

tested

M/2 min.

PL-8

PL-Y

PL-X

PL-2

M/2 min.

W x H

W x H

PL-1

PL-2

PL-4

PL-Z

AIRFLOW

Figure 5.3 - Test Device Setup with Inlet and Outlet Ducts

P

s9

D ± 0.02D

Device being tested

6D min.

M

75mm ± 6mm
(3 in. ± .025 in.)

t

d5

PL-9

PL-YPL-X

P

s4

Inlet cone required
if attached to plenum

10D min.

D ± 0.02D

From supply system and flow measuring section

Backdraft Dampers & Motorized Dampers

SECTION 8

F-80 www.carnes.com

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

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)

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

SECTION 9

www.carnes.com F-81

Manual Operators

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

Actuator Sizing Charts

SECTION 10

F-82 www.carnes.com

Actuator Sizing Chart
Opposed Blade Control Dampers

Options for Actuators:

1. End switch

2. Explosion-proof housing
CSA and UL Class I, II, III, Group C, D, E, F, G
Nema 7 Class 1, Group C and D
Nema 9 Class II, Group E, F, G

Consult Factory for other actuators.

Sq. ft. based on under 2” w.g. or 1200 FPM. For applications at 3” w.g. or 2500 FPM torque loading,
reduce sq. ft. by 25%. At 4” w.g. or 3000 FPM, reduce sq. ft. by 35%.

WITH JAMB SEALS WITHOUT JAMB SEALS



Type A Actuator

Models:
FXMBB (120V)
FXMBC (24V)

Max. Sq. Ft. - 3 S.F.
Spring Return
18# Torque



Type A Actuator

Models:
FXMBB (120V)
FXMBC (24V)

Max. Sq. Ft. - 7 S.F.
Spring Return
18# Torque



Type B Actuator

Models:
FXMBD (120V)
FXMBE (24V)

Max. Sq. Ft. - 6 S.F.
Spring Return
35# Torque



Type B Actuator

Models:
FXMBD (120V)
FXMBE (24V)

Max. Sq. Ft. - 14 S.F.
Spring Return
35# Torque



Type C Actuator

Models:
FXMBF (120V)
FXMBG (24V)

Max. Sq. Ft. - 14 S.F.
Spring Return
60# Torque



Type C Actuator

Models:
FXMBF (120V)
FXMBG (24V)

Max. Sq. Ft. - 30 S.F.
Spring Return
60# Torque



Type D Actuator

Models:
FXMBH (120V)
FXMBJ (24V)

Max. Sq. Ft. - 36 S.F.
Spring Return
133# Torque



Type D Actuator

Models:
FXMBH (120V)
FXMBJ (24V)

Max. Sq. Ft. - 65 S.F.
Spring Return
133# Torque



Type E Actuator

Models:
FXMBK (120V)
FXMBL (230V)
FXMBM (24V)

Max. Sq. Ft. - 50 S.F.
175# Torque



Type E Actuator

Models:
FXMBK (120V)
FXMBL (230V)
FXMBM (24V)

Max. Sq. Ft. - 85 S.F.
175# Torque

Actuator Sizing Charts

www.carnes.com F-83

Actuator Sizing Charts

Actuator Sizing Chart
Parallel Blade Control Dampers & Louvers

Options for Actuators:

1. End switch

2. Explosion-proof housing
CSA and UL Class I, II, III, Group C, D, E, F, G
Nema 7 Class 1, Group C and D
Nema 9 Class II, Group E, F, G

Consult Factory for other actuators.

Sq. ft. based on under 2” w.g. or 1200 FPM. For applications at 3” w.g. or 2500 FPM torque loading,
reduce sq. ft. by 25%. At 4” w.g. or 3000 FPM, reduce sq. ft. by 35%.

WITH JAMB SEALS WITHOUT JAMB SEALS



Type A Actuator

Models:
FXMBB (120V)
FXMBC (24V)

Max. Sq. Ft. - 2.5 S.F.
Spring Return
18# Torque



Type A Actuator

Models:
FXMBB (120V)
FXMBC (24V)

Max. Sq. Ft. - 5 S.F.
Spring Return
18# Torque



Type B Actuator

Models:
FXMBD (120V)
FXMBE (24V)

Max. Sq. Ft. - 5 S.F.
Spring Return
35# Torque



Type B Actuator

Models:
FXMBD (120V)
FXMBE (24V)

Max. Sq. Ft. - 10 S.F.
Spring Return
35# Torque



Type C Actuator

Models:
FXMBF (120V)
FXMBG (24V)

Max. Sq. Ft. - 12 S.F.
Spring Return
60# Torque



Type C Actuator

Models:
FXMBF (120V)
FXMBG (24V)

Max. Sq. Ft. - 22 S.F.
Spring Return
60# Torque



Type D Actuator

Models:
FXMBH (120V)
FXMBJ (24V)

Max. Sq. Ft. - 25 S.F.
Spring Return
133# Torque



Type D Actuator

Models:
FXMBH (120V)
FXMBJ (24V)

Max. Sq. Ft. - 50 S.F.
Spring Return
133# Torque



Type E Actuator

Models:
FXMBK (120V)
FXMBL (230V)
FXMBM (24V)

Max. Sq. Ft. - 33 S.F.
175# Torque



Type E Actuator

Models:
FXMBK (120V)
FXMBL (230V)
FXMBM (24V)

Max. Sq. Ft. - 65 S.F.
175# Torque

Louver and Damper Actuators

SECTION 11

F-84 www.carnes.com

Louver and Damper Actuators

Model: FXMBB
Type A (120VAC) Belimo

On-off, spring return safety,
100 to 240 VAC Torque min. 18 in-lb,
for control of air dampers

t Application

For on-off, fail safe control of louvers and dampers in
HVAC systems. Actuator sizing should be done in accor­dance with the damper manufacturer’s specifications.
Control is on-off from an auxiliary contact, or a manual
switch.

The actuator is mounted directly to a damper shaft from
1/4” up to 1/2” in diameter by means of its universal clamp,
1/2” shaft centered at delivery. A crank arm and several
mounting brackets are available for applications where the
actuator cannot be direct coupled to the damper shaft.

Operation

The FXMBB series actuators provide true spring return
operation for reliable fail-safe application and positive
close off on air tight louvers and dampers. The spring
return system provides consistent torque to the damper
with, and without, power applied to the actuator. The
FXMBB series provides 95° of rotation and is provided with
a graduated position indicator showing 0° to 90°. The actu­ator may be stalled anywhere in its normal rotation without
the need of mechanical end switches. Power consumption
is reduced in holding mode. The actuator is double insulat­ed so an electrical ground connection is not necessary.

Safety Note: Screw a conduit fitting into the actuator’s
bushing. Jacket the actuator’s input and output wiring with
suitable flexible conduit. Properly terminate the conduit in
a suitable junction box.

TECHNICAL DATA FXMBB

Power supply (nominal)
Power supply (tolerance)

100 to 240 VAC, 50/60 Hz
85 to 265 VAC, 50/60 Hz

Power consumption running: 2.5 W

holding: 1.3 W
Transformer sizing 4 VA (class 2 power source)
Electrical connection 3ft, 18 GA appliance cable

1/2” conduit connector
Overload protection electronic throughout 0° to 95° rotation
Electrical protection actuators are double insulated
Angle of rotation max 95°, adjust. with mechanical stop
Torque min. 18 in-lb [2 Nm]
Direction of rotation reversible with cw/ccw mounting
Position indication visual indicator, 0° to 95°

(0° spring return position)
Running time

(nominal)

motor: < 75 sec (0 to 18 in-lb)

spring: < 25 sec

@ -4°F to +122°F [-20°C to +50°C]

< 60 sec @ -22°F [-30°C]

Humidity 5 to 95% RH non-condensing
Ambient temperature -22°F to +122°F [-30°C to +50°C]
Storage temperature -40°F to +176°F [-40°C to +80°C]
Housing NEMA type 2 / IP42
Housing material UL94 - 5VA
Agency listings cULus listed acc. to UL 60730-1
Noise level max: running < 50 db (A)

spring return 62 db (A)
Servicing maintenance free
Quality standard ISO 9001
Weight 1.5 lbs (0.7 kg)

Dimensions (All numbers in brackets are mm)

Standard:

Ø 1/4” to 1/2”
 1/4” to 5/16”

Louver & Damper Actuators

www.carnes.com F-85

Louver and Damper Actuators

Louver and Damper Actuators

Model: FXMBC
Type A (24VAC) Belimo

On-off, spring return safety,
24V Torque min. 18 in-lb,
for control of air dampers

t Application

For on-off, fail safe control of louvers and dampers in
HVAC systems. Actuator sizing should be done in accor­dance with the damper manufacturer’s specifications.
Control is on-off from an auxiliary contact, or a manual
switch.

The actuator is mounted directly to a damper shaft from
1/4” up to 1/2” in diameter by means of its universal clamp,
1/2” shaft centered at delivery. A crank arm and several
mounting brackets are available for applications where the
actuator cannot be direct coupled to the damper shaft.

Operation

The FXMBC series actuators provide true spring return
operation for reliable fail-safe application and positive close
off on air tight louvers and dampers. The spring return
system provides consistent torque to the damper with, and
without, power applied to the actuator. The FXMBC series
provides 95° of rotation and is provided with a graduated
position indicator showing 0° to 90°. The actuator may be
stalled anywhere in its normal rotation without the need of
mechanical end switches. Power consumption is reduced
in holding mode.

Safety Note: Screw a conduit fitting into the actuator’s
bushing. Jacket the actuator’s input and output wiring with
suitable flexible conduit. Properly terminate the conduit in a
suitable junction box.

TECHNICAL DATA FXMBC

Power supply 24VAC ± 20%, 50/60 Hz

24VDC ± 10%

Power consumption running: 2.5 W

holding: 1.3 W
Transformer sizing 4 VA (class 2 power source)
Electrical connection 3ft, 18 GA appliance cable

1/2” conduit connector
Overload protection electronic throughout 0° to 95° rotation
Angle of rotation max 95°, adjust. with mechanical stop
Torque min. 18 in-lb [2 Nm]
Direction of rotation reversible with cw/ccw mounting
Position indication visual indicator, 0° to 95°

(0° spring return position)
Running time

(nominal)

motor: < 75 sec (0 to 18 in-lb)

spring: < 25 sec

@ -4°F to +122°F [-20°C to +50°C]

< 60 sec @ -22°F [-30°C]

Humidity 5 to 95% RH non-condensing
Ambient temperature -22°F to +122°F [-30°C to +50°C]
Storage temperature -40°F to +176°F [-40°C to +80°C]
Housing NEMA type 2 / IP42
Housing material UL94 - 5VA
Agency listings cULus listed acc. to UL 60730-1
Noise level max: running < 50 db (A)

spring return 62 db (A)
Servicing maintenance free
Quality standard ISO 9001
Weight 1.5 lbs (0.7 kg)

Dimensions (All numbers in brackets are mm)

Standard:

Ø 1/4” to 1/2”
 1/4” to 5/16”

Louver and Damper Actuators

Louver & Damper Actuators

F-86 www.carnes.com

Louver and Damper Actuators

Model: FXMBD
Type B (120VAC)

On-off, spring return safety,
120 VAC Torque min. 35 in-lb,
for control of air dampers

t Application

For on-off, fail safe control of louvers and dampers in
HVAC systems. Actuator sizing should be done in accor­dance with the damper manufacturer’s specifications.
Control is on-off from an auxiliary contact, or a manual
switch.

The actuator is mounted directly to a damper shaft from
3/8” up to 1/2” in diameter by means of its universal clamp,
1/2” shaft centered at delivery. For shafts up to 3/4” use
K6-1 accessory. A crank arm and several mounting brack­ets are available for applications where the actuator cannot
be direct coupled to the damper shaft.

Operation

The FXMBD series actuators provide true spring return
operation for reliable fail-safe application and positive close
off on air tight louvers and dampers. The spring return
system provides consistent torque to the damper with, and
without, power applied to the actuator. The FXMBD series
provides 95° of rotation and is provided with a graduated
position indicator showing 0° to 90°. The actuator may be
stalled anywhere in its normal rotation without the need of
mechanical end switches. Power consumption is reduced
in holding mode. The actuator is double insulated so an
electrical ground connection is not necessary.

Five Year Warranty

Two Year “unconditional” warranty from date of installation. For the following three years,
a conditional warranty applies. Under this conditional warranty, the consequences of
ordinary wear and tear, damage due to negligence or improper use, or other causes
beyond our control are excluded from warranty coverage. Attempts at field repair or
modifications will null and void warranty. Products found defective will be replaced or
repaired at seller’s discretion. Seller is not responsible for any field labor.

TECHNICAL DATA FXMBD

Power supply 120 VAC ±10%

50/60 Hz

Power consumption running: 5.5 W

holding: 3.5 W
Transformer sizing 7.5 VA (class 2 power source)
Electrical connection (2) 18”, 18 GA single conductors

1/2” conduit connector
Overload protection electronic throughout 0° to 95° rotation
Electrical protection actuators are double insulated
Angle of rotation max 95°, adjust. with mechanical stop
Torque 35 in-lb [4 Nm] constant torque
Direction of rotation reversible with cw/ccw mounting
Position indication visual indicator, 0° to 95°

(0° spring return position)
Running time

(nominal)

motor: < 40 to 75 sec

spring: < 25 sec

@ -4°F to +122°F [-20°C to +50°C]

< 60 sec @ -22°F [-30°C]

Humidity 5 to 95% RH non-condensing
Ambient temperature -22°F to +122°F [-30°C to +50°C]
Storage temperature -40°F to +176°F [-40°C to +80°C]
Housing NEMA type 2 / IP54
Housing material zinc coated steel
Agency listings UL 873, CSA 4813 02
Noise level max: running < 50 db (A)

spring return 62 db (A)
Servicing maintenance free
Quality standard ISO 9001
Weight 3.4 lbs (1.54 kg)

Dimensions

(All numbers in brackets are mm)

Standard:

Ø 3/8” to 1/2”
 1/4” to 5/16”

Optional:

Ø 1/2” to 3/4”
w/K6-1 accessory

Louver & Damper Actuators

www.carnes.com F-87

Louver and Damper Actuators

Louver and Damper Actuators

Model: FXMBE
Type B (24VAC)

On-off, spring return safety,
24V Torque min. 35 in-lb,
for control of air dampers

t Application

For on-off, fail safe control of louvers and dampers in
HVAC systems. Actuator sizing should be done in accor­dance with the damper manufacturer’s specifications.
Control is on-off from an auxiliary contact, or a manual
switch.

The actuator is mounted directly to a damper shaft from
3/8” up to 1/2” in diameter by means of its universal clamp,
1/2” shaft centered at delivery. For shafts up to 3/4” use
K6-1 accessory. A crank arm and several mounting brack­ets are available for applications where the actuator cannot
be direct coupled to the damper shaft.

Operation

The FXMBE series actuators provide true spring return
operation for reliable fail-safe application and positive close
off on air tight louvers and dampers. The spring return
system provides consistent torque to the damper with, and
without, power applied to the actuator. The FXMBE series
provides 95° of rotation and is provided with a graduated
position indicator showing 0° to 90°. The actuator may be
stalled anywhere in its normal rotation without the need of
mechanical end switches. Power consumption is reduced
in holding mode.

Five Year Warranty

Two Year “unconditional” warranty from date of installation. For the following three years,
a conditional warranty applies. Under this conditional warranty, the consequences of
ordinary wear and tear, damage due to negligence or improper use, or other causes
beyond our control are excluded from warranty coverage. Attempts at field repair or
modifications will null and void warranty. Products found defective will be replaced or
repaired at seller’s discretion. Seller is not responsible for any field labor.

TECHNICAL DATA FXMBE

Power supply 24 VAC ±20% 50/60 Hz

24 VDC ±10%

Power consumption running: 5 W

holding: 2.5 W
Transformer sizing 7 VA (class 2 power source)
Electrical connection (2) 18”, 18 GA single conductors (-S models

use appliance cable for switch)

1/2” conduit connector
Overload protection electronic throughout 0° to 95° rotation

Angle of rotation max 95°, adjust. with mechanical stop
Torque 35 in-lb [4 Nm]
Direction of rotation reversible with cw/ccw mounting
Position indication visual indicator, 0° to 95°

(0° spring return position)
Running time

(nominal)

motor: < 40 to 75 sec

spring: < 25 sec

@ -4°F to +122°F [-20°C to +50°C]

< 60 sec @ -22°F [-30°C]

Humidity 5 to 95% RH non-condensing
Ambient temperature -22°F to +122°F [-30°C to +50°C]
Storage temperature -40°F to +176°F [-40°C to +80°C]
Housing NEMA type 1
Housing material zinc coated steel
Agency listings UL 873 listed, CSA 4813 02 certified
Noise level max: running < 50 db (A)

spring return 62 db (A)
Servicing maintenance free
Quality standard ISO 9001
Weight 3.1 lbs (1.40 kg)

Dimensions (All numbers in brackets are mm)

Standard:

Ø 3/8” to 1/2”
 1/4” to 5/16”

Optional:

Ø 1/2” to 3/4”
w/K6-1 accessory

Louver and Damper Actuators

Louver & Damper Actuators

F-88 www.carnes.com

Louver and Damper Actuators

Model: FXMBF
Type C (120VAC)

On-off, spring return safety,
120 VAC Torque min. 60 in-lb,
for control of air dampers

t Application

For on-off, fail safe control of louvers and dampers in
HVAC systems. Actuator sizing should be done in accor­dance with the damper manufacturer’s specifications.
Control is on-off from an auxiliary contact, or a manual
switch.

The actuator is mounted directly to a damper shaft up to
1/2” in diameter by means of its universal clamp, or up to a

1.05” jackshaft by removing the clamp insert. A crank arm
and several mounting brackets are available for applica­tions where the actuator cannot be direct coupled to the
damper shaft.

Operation

The FXMBF series actuators provide true spring return
operation for reliable fail-safe application and positive close
off on air tight louvers and dampers. The spring return
system provides consistent torque to the damper with, and
without, power applied to the actuator. The FXMBF series
provides 95° of rotation and is provided with a graduated
position indicator showing 0° to 95°. The actuator may be
stalled anywhere in its normal rotation without the need of
mechanical end switches.

Five Year Warranty

Two Year “unconditional” warranty from date of installation. For the following three years,
a conditional warranty applies. Under this conditional warranty, the consequences of
ordinary wear and tear, damage due to negligence or improper use, or other causes
beyond our control are excluded from warranty coverage. Attempts at field repair or
modifications will null and void warranty. Products found defective will be replaced or
repaired at seller’s discretion. Seller is not responsible for any field labor.

TECHNICAL DATA FXMBF

Power supply 120 VAC ±10%

50/60 Hz

Power consumption running: 6 W

holding: 3.5 W
Transformer sizing 7 VA (class 1 power source)
Electrical connection (3) 18”, 18 GA single conductors

1/2” conduit connector
Overload protection electronic throughout 0° to 95° rotation
Angle of rotation 95°, adjust. 30 to 95° w/accessories
Torque 60 in-lb [7 Nm] constant torque
Direction of rotation spring return can be selected by

cw/ccw mounting
Position indication visual indicator, 0° to 95°

(0° spring return position)
Running time

(nominal)

motor: < 75 sec

spring: < 60 sec
Humidity 5 to 95% RH non-condensing
Ambient temperature -22°F to +122°F [-30°C to +50°C]
Storage temperature -40°F to +176°F [-40°C to +80°C]
Housing NEMA type 1
Housing material zinc coated steel
Agency listings UL 873 listed, CSA 4813 02 certified
Noise level max: 45 db (A)
Servicing maintenance free
Quality standard ISO 9001
Weight 7.3 lbs (3.3 kg)

Dimensions (All numbers in brackets are mm)

Standard:

Ø 1/2” to 1.05”

Optional:

Ø 3/8” to 3/4”
w/K4 US clamp

Louver & Damper Actuators

www.carnes.com F-89

Louver and Damper Actuators

Louver and Damper Actuators

Model: FXMBG
Type C (24VAC)

On-off, spring return safety,
24 V Torque min. 60 in-lb,
for control of air dampers

t Application

For on-off, fail safe control of louvers and dampers in
HVAC systems. Actuator sizing should be done in accor­dance with the damper manufacturer’s specifications.
Control is on-off from an auxiliary contact, or a manual
switch.

The actuator is mounted directly to a damper shaft up to
1/2” in diameter by means of its universal clamp, or up to a

1.05” jackshaft by removing the clamp insert. A crank arm
and several mounting brackets are available for applica­tions where the actuator cannot be direct coupled to the
damper shaft.

Operation

The FXMBG series actuators provide true spring return
operation for reliable fail-safe application and positive close
off on air tight louvers and dampers. The spring return
system provides consistent torque to the damper with, and
without, power applied to the actuator. The FXMBG series
provides 95° of rotation and is provided with a graduated
position indicator showing 0° to 95°. The actuator may be
stalled anywhere in its normal rotation without the need of
mechanical end switches.

Five Year Warranty

Two Year “unconditional” warranty from date of installation. For the following three years,
a conditional warranty applies. Under this conditional warranty, the consequences of
ordinary wear and tear, damage due to negligence or improper use, or other causes
beyond our control are excluded from warranty coverage. Attempts at field repair or
modifications will null and void warranty. Products found defective will be replaced or
repaired at seller’s discretion. Seller is not responsible for any field labor.

TECHNICAL DATA FXMBG

Power supply 24 VAC ±20% 50/60 Hz

24 VDC ±10%
Power consumption running: 5 W

holding: 2.6 W
Transformer sizing 8 VA (class 1 power source)
Electrical connection (2) 18”, 18 GA single conductors

1/2” conduit connector
Overload protection electronic throughout 0° to 95° rotation
Angle of rotation max 95°, adjust. with mechanical stop
Torque 60 in-lb [7 Nm] constant torque
Direction of rotation spring return can be selected by cw/ccw

mounting
Position indication visual indicator, 0° to 95°

(0° spring return position)
Running time

(nominal)

motor: < 75 sec

spring: < 60 sec
Humidity 5 to 95% RH non-condensing
Ambient temperature -22°F to +122°F [-30°C to +50°C]
Storage temperature -40°F to +176°F [-40°C to +80°C]
Housing NEMA type 1
Housing material zinc coated steel
Agency listings UL 873 listed, CSA 4813 02 certified
Noise level max: 45 db (A)
Servicing maintenance free
Quality standard ISO 9001
Weight 6.6 lbs (3.0 kg)

Dimensions (All numbers in brackets are mm)

Standard:

Ø 1/2” to 1.05”

Optional:

Ø 3/8” to 3/4”
w/K4 US clamp

Louver and Damper Actuators

Louver & Damper Actuators

F-90 www.carnes.com

Louver and Damper Actuators

Model: FXMBH
Type D (120VAC)

On-off, spring return safety,
120 VAC Torque min. 133 in-lb,
for control of air dampers

t Application

For on-off, fail safe control of louvers and dampers in
HVAC systems. Actuator sizing should be done in accor­dance with the damper manufacturer’s specifications.
Control is on-off from an auxiliary contact, or a manual
switch.

The actuator is mounted directly to a damper shaft up to
1/2” in diameter by means of its universal clamp, or up to a

1.05” jackshaft by removing the clamp insert. A crank arm
and several mounting brackets are available for applica­tions where the actuator cannot be direct coupled to the
damper shaft.

Operation

The FXMBH series actuators provide true spring return
operation for reliable fail-safe application and positive close
off on air tight louvers and dampers. The spring return
system provides consistent torque to the damper with, and
without, power applied to the actuator. The FXMBH series
provides 95° of rotation and is provided with a graduated
position indicator showing 0° to 95°. The actuator may be
stalled anywhere in its normal rotation without the need of
mechanical end switches.

The FXMBH uses a brushless DC motor which is
controlled by an Application Specific Integrated Circuit
(ASIC). The ASIC monitors and controls the actuator’s
rotation and provides a digital rotation sensing function to
prevent damage to the actuator in a stall condition. The
actuator may be stalled anywhere in its normal rotation
without the need of mechanical end switches.

TECHNICAL DATA FXMBH

Power supply 120 VAC ±10%

50/60 Hz

Power consumption running: 6 W

holding: 2.3 W
Transformer sizing 10 VA (class 1 power source)
Electrical connection (3) 18”, 18 GA single conductors

1/2” conduit connector
Overload protection electronic throughout 0° to 95° rotation
Angle of rotation 95°, adjust. 30 to 95° w/accessories
Torque 133 in-lb [7 Nm] constant torque
Direction of rotation spring return can be selected by

cw/ccw mounting
Position indication visual indicator, -0° to 95°

(-0° spring return position)
Running time 150 sec. constant, independent of load,

spring return < 20 sec
Humidity 5 to 95% RH non-condensing
Ambient temperature -22°F to +122°F [-30°C to +50°C]
Storage temperature -40°F to +176°F [-40°C to +80°C]
Housing NEMA type 1
Housing material zinc coated steel
Agency listings UL 873 listed, CSA 4813 02 certified
Noise level max: 45 db (A)
Servicing maintenance free
Quality standard ISO 9001
Weight 6.9 lbs (3.1 kg)

Dimensions

(All numbers in brackets are mm)

Standard:

Ø 1/2” to 1.05”

Optional:

Ø 3/8” to 3/4”
w/K4 US clamp

Five Year Warranty

Two Year “unconditional” warranty from date of installation. For the following three years,
a conditional warranty applies. Under this conditional warranty, the consequences of
ordinary wear and tear, damage due to negligence or improper use, or other causes
beyond our control are excluded from warranty coverage. Attempts at field repair or mod­ifications will null and void warranty. Products found defective will be replaced or repaired
at seller’s discretion. Seller is not responsible for any field labor.

Louver & Damper Actuators

www.carnes.com F-91

Louver and Damper Actuators

Louver and Damper Actuators

Model: FXMBJ
Type D (24VAC)

On-off, spring return safety,
24V Torque min. 133 in-lb,
for control of air dampers

t Application

For on-off, fail safe control of louvers and dampers in
HVAC systems. Actuator sizing should be done in accor­dance with the damper manufacturer’s specifications.
Control is on-off from an auxiliary contact, or a manual
switch.

The actuator is mounted directly to a damper shaft up to
1/2” in diameter by means of its universal clamp, or up to a

1.05” jackshaft by removing the clamp insert. A crank arm
and several mounting brackets are available for applica­tions where the actuator cannot be direct coupled to the
damper shaft.

Operation

The FXMBJ series actuators provide true spring return
operation for reliable fail-safe application and positive close
off on air tight louvers and dampers. The spring return
system provides consistent torque to the damper with, and
without, power applied to the actuator. The FXMBJ series
provides 95° of rotation and is provided with a graduated
position indicator showing 0° to 95°. The actuator may be
stalled anywhere in its normal rotation without the need of
mechanical end switches.

The FXMBJ uses a brushless DC motor which is controlled
by an Application Specific Integrated Circuit (ASIC). The
ASIC monitors and controls the actuator’s rotation and
provides a digital rotation sensing function to prevent
damage to the actuator in a stall condition. The actuator
may be stalled anywhere in its normal rotation without the
need of mechanical end switches.

TECHNICAL DATA FXMBJ

Power supply 24 VAC ±20% 50/60 Hz

24 VDC ±10%

Power consumption running: 5 W

holding: 1.5 W
Transformer sizing 10 VA (class 1 power source)
Electrical connection (2) 18”, 18 GA single conductors

1/2” conduit connector
Overload protection electronic throughout 0° to 95° rotation
Angle of rotation 95°, adjust. 30 to 95° w/accessories
Torque 133 in-lb [7 Nm] constant torque
Direction of rotation spring return can be selected by cw/ccw

mounting
Position indication visual indicator, -0° to 95°

(-0° spring return position)
Running time 150 sec. constant, independent of load,

spring return < 20 sec
Humidity 5 to 95% RH non-condensing
Ambient temperature -22°F to +122°F [-30°C to +50°C]
Storage temperature -40°F to +176°F [-40°C to +80°C]
Housing NEMA type 1
Housing material zinc coated steel
Agency listings UL 873 listed, CSA 4813 02 certified
Noise level max: 45 db (A)
Servicing maintenance free
Quality standard ISO 9001
Weight 6.0 lbs (2.7 kg)

Dimensions (All numbers in brackets are mm)

Standard:

Ø 1/2” to 1.05”

Optional:

Ø 3/8” to 3/4”
w/K4 US clamp

Five Year Warranty

Two Year “unconditional” warranty from date of installation. For the following three years,
a conditional warranty applies. Under this conditional warranty, the consequences of
ordinary wear and tear, damage due to negligence or improper use, or other causes
beyond our control are excluded from warranty coverage. Attempts at field repair or
modifications will null and void warranty. Products found defective will be replaced or
repaired at seller’s discretion. Seller is not responsible for any field labor.

Louver and Damper Actuators

Louver & Damper Actuators

F-92 www.carnes.com

Louver and Damper Actuators

Model: FXMBK (120V), FXMBL (230V), FXMBM (24V)
Type E Honeywell

Fast-acting, two position actuators
t Application

The FXMBK, FXMBL and FXMBM Fast-Acting, Two
Position Actuators are spring return direct coupled actua­tors (DCA) for on/off signal from a single-pole, single-throw
(spst) controller. Reversible mounting allows actuator to be
used for either clockwise (cw) or counterclockwise (ccw)
spring rotation.

The FXMBK, FXMBL and FXMBM DCA are designed to
operate reliable in smoke control systems requiring
Underwriter’s Laboratories Inc. UL555S ratings up to
350°F.

Features

• 175 lb-in. (20 N•m) minimum driving torque at 350°F
(176°C)

• Reversible mounting facilitates use in either clockwise
(cw) or counterclockwise (ccw) spring rotation

• Integral spring return ensures level of return torque

• Stainless steel internal sprint

• Fifteen-second spring return timing

• No special cycling required during long-term holding
(See operation section)

• No audible noise during holding

• Patent pending design eliminates need for limit
switches to reduce power consumption

• Models available for 24, 120, and 230 Vac applications

• Ninety-five degree angle of rotation

• Actuator holds rated torque at reduced power level

• Die-cast aluminum housing

• Housing design allows flush mounting to damper

• High-temperature indicator included

• Self-centering shaft adapter (SCSA), patent pending

FXMBK and FXMBL

• High temperature Teflon® lead wires

• Designed to operate reliable in smoke control systems
requiring Underwriter’s Laboratories Inc. UL555S
ratings up to 350°F

• Models available with integral high temperature (350°F)
SPST position-indicating switches (7°, 85° stroke)

FXMBM

• Double-insulation rating

• Halogen-free, silicone-free leadwires

• Models available with integral high temperature (350°F)

SPST position-indicating switches (7°, 85° stroke)