AERCO Belimo AF120-S US Actuator - Manual (Page 3)

800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
57
30
20
10
0
CCW
30
20
10
0
-5
Correct clamp mounting
position if actuator is at
full fail-safe.
40
30
20
10
0
-5
40
30
20
10
0
-5
Correct pointer mounting
position if actuator is at
full fail-safe.
CW
CCW CW
Correct pointer mounting
position when actuator is
at 5° preload.
-5
-5
Correct pointer mounting
position if actuator is at
full fail-safe.
-
CW CCW
CW CCW
30
20
10
0
40
30
20
10
0
40
30
20
10
0
30
20
10
0
40
FIGURE A – Universal Clamp and IND-AF2 Pointer (optional)
positions indicating fail-safe and pre-load settings
Installation Instructions
Mechanical Installation
Short Shaft Installation
If the shaft extends at least 3/4” from the duct, follow these steps:
1. Determine the best orientation for the universal clamp on the back of the actuator.
The best location would be where you have the easiest access to the V bolt nuts on
the clamp.
2. Engage the clamp to the actuator as close as possible to the determined location.
3. Lock the clamp in place using the remaining retainer clip.
4. Verify that the damper is still in its full fail-safe position.
5. Slide the actuator over the shaft.
6. Position the actuator in the desired location.
7. Tighten the two nuts on the clamp using a 10mm wrench or socket using 6-8
ft-lb of torque.
8. Slip the stud of the anti-rotation strap into the slot at the base of the actuator.
The stud should be positioned approximately 1/16 of an inch from the closed end
of the slot. Bend the strap as needed to reach the duct. Attach the strap to the
duct with #8 self tapping screws.
9. If damper position indication is required, use the optional IND-AF2 pointer. See
Figure A.
Jackshaft Installation
The AF… series actuator is designed for use with jackshafts up to 1.05” in
diameter. In most applications, the AF actuator may be mounted in the same
manner as a standard damper shaft application. If more torque is required than one
AF actuator can provide, a second AF actuator may be mounted to the jackshaft
using the ZG-102 multiple actuator mounting bracket. See wiring guide for wiring
details.
AF ACTUATORS WHICH MAY BE USED ON ONE SHAFT
Model
Maximum Quantity Per Shaft
AF24(-S) US
AF120(-S) US
AF230(-S) US
4
AF24-SR US 4
MOUNTING: If the actuators are
mounted on the opposed ends of the
shaft, the actuator direction must be
selected carefully. Usually, the direction
of rotation is reversed.
Multiple Actuator Mounting
If more torque is required than one AF actuator can provide, a second AF actuator
may be mounted to the shaft using the ZG-102 multiple mounting bracket.
NOTE: The manual positioning mechanism cannot be used in multiple actuator
applications.
Special Wiring and Additional Information: See wiring guide
M40024 - 05/10 - Subject to change.
© Belimo
Aircontrols (USA),
Inc
.