321 Studios FSAF24 Manual De Usuario
800-543-9038 USA
866-805-7089 CANADA
203-791-8396 LATIN AMERICA
177
FSAF24-BAL(-S) US
Spring Return, 24 V, 3-Position, 100% Open Override
Operation at 250°F for limited time per UL555S testing
Operation at 250°F for limited time per UL555S testing
Application
For 3-position control of UL555S rated dampers in HVAC. Actuator sizing should be
done in accordance with the damper manufacturer’s tests. In the absence of other
information, use 10 in-lb of torque per square foot of area for opposed blade and 14
in-lb for parallel blade fire and smoke dampers at 1000 fpm air velocity.
done in accordance with the damper manufacturer’s tests. In the absence of other
information, use 10 in-lb of torque per square foot of area for opposed blade and 14
in-lb for parallel blade fire and smoke dampers at 1000 fpm air velocity.
The FSAF24-BAL is specifically designed to balance the air flow in ducts and
simultaneously provide control of fire and smoke dampers. 0V = spring closed. 24V on
wire 2, not 3 = drive to the potentiometer position (balanced flow). 24V on wire 3,
regardless of the status of wire 2 = drive full open (smoke control extraction or
pressurization). See Application Bulletin for details.
simultaneously provide control of fire and smoke dampers. 0V = spring closed. 24V on
wire 2, not 3 = drive to the potentiometer position (balanced flow). 24V on wire 3,
regardless of the status of wire 2 = drive full open (smoke control extraction or
pressurization). See Application Bulletin for details.
Operation
For 3-position control of UL555S rated dampers in HVAC. Actuator sizing should be
done in accordance with the damper manufacturer’s tests. In the absence of other
information, use 10 in-lb of torque per square foot of area for opposed blade and 14
in-lb for parallel blade fire and smoke dampers at 1000 fpm air velocity.
done in accordance with the damper manufacturer’s tests. In the absence of other
information, use 10 in-lb of torque per square foot of area for opposed blade and 14
in-lb for parallel blade fire and smoke dampers at 1000 fpm air velocity.
The FSAF24-BAL is specifically designed to balance the air flow in ducts and
simultaneously provide control of fire and smoke dampers. 0V = spring closed. 24V on
wire 2, not 3 = drive to the potentiometer position (balanced flow). 24V on wire 3,
regardless of the status of wire 2 = drive full open (smoke control extraction or
pressurization).
simultaneously provide control of fire and smoke dampers. 0V = spring closed. 24V on
wire 2, not 3 = drive to the potentiometer position (balanced flow). 24V on wire 3,
regardless of the status of wire 2 = drive full open (smoke control extraction or
pressurization).
SAFETY NOTE
The actuator contains no components which the user can replace or repair.
The actuator contains no components which the user can replace or repair.
Dimensions (Inches [mm])
1.97"
3.
1
5"
[80]
3.
8
6"
[9
8]
2
.2
4
"
[57]
[50]
1.93"
[4
9]
2.64"
[67]
0.26" [6.5]
5.85" [148.5]
10.59" [269]
0.35" [9]
0.39" [10]
0.65" [16.5]
0.19" [5]
3
.2
5
"
[82.7]
Standard
½” to 1.05”
Optional
½”
70793-00001.
p
df
Technical Data
FSAF24-BAL(-S) US
Power supply
24 VAC ± 20% 50/60 Hz
24 VDC ± 10%
24 VDC ± 10%
Power consumption
running AC 9.5 VA 6.5W
DC 6W
holding AC 5 VA 3W
DC 3W
Transformer sizing
10 VA (class 2 power source 24V only)
Electrical connection
3 ft, 18 GA, 1/2” conduit connector
Overload protection
electronic throughout 0 to 95° rotation
Control signal
24 VAC/DC 3-position
Angle of rotation
20° to 95°, pot adjustable
Torque
133 in-lb [15 Nm]
Direction of rotation
spring reversible with cw/ccw mounting
Position indication
visual indicator, 0° to 95°
(0° spring return position)
(0° spring return position)
Manual override
3mm hex crank (shipped w/actuator)
Running time
motor <75 seconds @ 250°F [121°C]
spring < 20 seconds
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/IP40 (with flex conduit)
Housing material
zinc coated metal
Agency listings†
cULus to UL873 and CSA C22.2 No. 24-93
Noise level (max)
running <45 dB(A)
spring
<62dB(A)
Servicing
maintenance free
Quality standard
ISO 9001, 5 year Belimo warranty
Weight
5.3 lbs (2.4 kg)
5.7 lbs (2.6 kg) for -S model
5.7 lbs (2.6 kg) for -S model
FSAF24-BAL-S US
Auxiliary switch
Auxiliary switch
2 x SPDT 7A resistive, 2.5A inductive at
120/250VAC. UL listed, double-insulated,
one switch is set at 10°, one is adjustable
30° to 90°
120/250VAC. UL listed, double-insulated,
one switch is set at 10°, one is adjustable
30° to 90°
M40024 - 05/10 - Subject to change.
© Belimo
Aircontrols (USA),
Inc.