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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
AF24-SR US
AF24-MFT(-S) US
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
800-543-9038 USA
36
4
4
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.
866-805-7089 CANADA
20
Correct clamp mounting
position if actuator is at
full fail-safe.
CCW
Correct pointer mounting
20
position if actuator is at
full fail-safe.
CCW
40
Correct pointer mounting
position when actuator is
at 5 preload.
CCW
40
Correct pointer mounting
position if actuator is at
full fail-safe.
CCW
FIGURE A – Universal Clamp and Ind-AF2 Pointer (optional)
positions indicating fail-safe and pre-load settings
203-791-8396 LATIN AMERICA
CW
CW
CW
CW
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