321 Studios FSAF24 ユーザーズマニュアル
800-543-9038 USA
866-805-7089 CANADA
203-791-8396 LATIN AMERICA
171
FSAF24(-S) US, FSAF120(-S) US
On/Off, Spring Return, Meets 250°F [121°C] for Half Hour, 75 Seconds
Torque min. 133 in-lb, for control of air dampers
Application
For two position control of UL555S rated dampers in HVAC. Actuator sizing should be
done in accordance with the damper manufacturer’s specifications.
done in accordance with the damper manufacturer’s specifications.
The actuator is mounted directly to a damper shaft or jackshaft 3/8” to 1.05” in
diameter by means of its universal clamp. A crank arm and mounting brackets are
available if the actuator cannot be direct coupled to the jackshaft or damper shaft.
diameter by means of its universal clamp. A crank arm and mounting brackets are
available if the actuator cannot be direct coupled to the jackshaft or damper shaft.
Square footage of damper operated will depend on make and model of damper.
Typically 12 sq.ft. minimum up to 24 sq.ft maximum will be operated for UL555S
applications.
Typically 12 sq.ft. minimum up to 24 sq.ft maximum will be operated for UL555S
applications.
Operation
The FSAF series actuators provide true spring return operation for reliable fail-safe
application and positive close-off on UL555S dampers. The spring return system
provides constant torque to the damper with, and without, power applied to the
actuator.
application and positive close-off on UL555S dampers. The spring return system
provides constant torque to the damper with, and without, power applied to the
actuator.
The FSAF series provides 95° of rotation and is provided with a graduated position
indicator showing 0 to 95°. The FSAF has a manual positioning mechanism which
allows the setting of any damper position within its 95° of rotation.
indicator showing 0 to 95°. The FSAF has a manual positioning mechanism which
allows the setting of any damper position within its 95° of rotation.
The actuator is shipped in the zero fail-safe position to provide automatic compression
against damper gaskets for tight shut-off. When power is applied, the manual
mechanism is released and the actuator drives toward the
open position where it stops rotating.
against damper gaskets for tight shut-off. When power is applied, the manual
mechanism is released and the actuator drives toward the
open position where it stops rotating.
The manual override can also be released physically by the use of a crank supplied
with the actuator.
with the actuator.
SAFETY NOTE
Screw a conduit fi tting into the actuator’s bushing. Jacket the actuator’s input and
output wiring with suitable fl exible conduit. Properly terminate the conduit in a
suitable junction box.
Screw a conduit fi tting into the actuator’s bushing. Jacket the actuator’s input and
output wiring with suitable fl exible conduit. Properly terminate the conduit in a
suitable junction box.
Dimensions (Inches [mm])
1.97"
3.15" [80]
3.86" [98]
2.24"
[57]
[50]
1.93"
[49]
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]
Standard:
1/2" to 1.05"
Optional*
3/8" to 3/4"
3/8" to 5/8"
*with K4 US
clamp
clamp
3.25" [82.7]
004
D
0
Technical Data
FSAF24(-S) US, FSAF120(-S) US
Power supply
FSAF24(-S) US
24 VAC ± 20%, 24 VDC -10% +20%
FSAF120(-S) US
120 VAC ± 10%, 50/60 Hz
Power consumption
FSAF24(-S) US
running 7.5 W, 10 VA, .4 A
holding 2 W, 4 VA, .15 A
FSAF120(-S) US
running 50/60Hz: 9.5 W, 11 VA, .1 A
holding 3.5 W, 6 VA, .05 A
Transformer sizing
10 VA (Class 2 power source 24V only)
Electrical connection
motor 3 ft, 18 ga, 2 color coded leads
1/2” conduit connectors
-S models 3 ft, 18 ga, 4 leads appliance cable
1/2” conduit connectors
Overload protection
electronic throughout 0 to 95° rotation
Angle of rotation
mechanically limited to 95°
Torque
133 in-lb [15 Nm] constant
Direction of rotation
spring reversible with cw/ccw mounting
Position indication
visual indicator, 0° to 95°
(0° is spring return position)
(0° is spring return position)
Manual override
3mm hex crank (shipped w/actuator)
Running time
<75 sec. constant, independent of load
spring <20 seconds nominal
Humidity
5 to 95% RH non-condensing
Ambient temperature
normal duty -22°F to 122°F [-30°C to 50°C]
safety duty 3 on/off cycles after 30 minutes at ambient
temperature of 250°F [121°C]
Storage temperature
-40°F to 176°F [-40°C to 80°C]
Housing NEMA
type
1
/ IP40
Housing material
zinc coated metal
Gears
permanently lubricated
Agency listings
cULus listed to UL873 and
CAN/CSA C22.2 No.24
CAN/CSA C22.2 No.24
Noise level (max)
45 dB (A)
spring return 62 dB
Servicing
Maintenance free
Quality standard
ISO 9001, 5 year Belimo warranty
Weight
(standard / -S model)
FSAF24(-S) US
5.7 / 6.2 lbs (2.6 / 2.8 kg)
FSAF120(-S) US
6.1 / 6.6 lbs (2.8 / 3 kg)
FSAF24-S US, FSAF120-S US
Auxiliary Switch
Auxiliary Switch
2xSPST 7A resistive, 2.5A inductive at 120V or
250V, UL Approved, double-insulated, one switch
at 10°, one adjustable from 30° to 90°
250V, UL Approved, double-insulated, one switch
at 10°, one adjustable from 30° to 90°
M40024 - 05/10 - Subject to change.
© Belimo
Aircontrols (USA),
Inc.