267
J20741 - Subject to change. © Belimo Aircontrols (USA), Inc.
Mounting Installation
Reversible Clamp Quick Mount (NM, AM, GM)
1. Turn the damper shaft until the blades are fully closed.
2. ① Slip the actuator’s universal clamp over the damper shaft.
Make sure that the duct and the controls on the cover are
accessible. Place the actuator in the desired mounting position.
➁ Hand tighten the two nuts on the actuators universal clamp.
3. ① Disengage the actuator gear train by pressing the manual
override button and rotate the clamp until centered.
➁ Slide the anti-rotation strap up under the actuator so it
engages the actuator at the center cutout. Bend the bracket
as needed to support the rear of the actuator. Secure to
ductwork with self-tapping screws (No. 8 recommended).
4. ① Loosen the nuts on the universal clamp. Press the manual
override button and rotate the clamp to about 5° from the
closed position (1/16 to 1/8” between stop and clamp).
➁ Tighten the two nuts on the universal clamp with a 10 mm
wrench (see table for required torque).
5. ① Snap on the reflective position indicator.
➁ Adjust end-stops, if required
6. Mount actuators indoors. If mounted outdoors, use approved
protective enclosure.
The damper is now fully closed but the actuator is 5° from fully
closed. This is called “pre-loading” the actuator. When the
actuator is powered and sent to the closed position: it will put its
full torque on the shaft compressing the edge and blade seals.
This ensures that the damper will meet its leakage rating. The
actuator is electronically protected from overload and will not be
damaged.
Testing the Installation Without Power
1. Disengage the gear train with the manual override button
and move the shaft from closed to open to closed. Ensure
that there is no binding and that the damper goes fully open
and closes with 5° of actuator stroke left.
2. Correct any problems and retest.
Standard Mounting
To Next Page
Loading...
Need help?
General
