Belimo FSAF24 - Manual (Page 7)

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
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.
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.
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.
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).
SAFETY NOTE
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%
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)
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
FSAF24-BAL-S US
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°
M40024 - 05/10 - Subject to change.
© Belimo
Aircontrols (USA),
Inc.