AERCO Belimo GMX24-MFT Actuator - Manual (Page 3)

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Mounting Installation
Reversible Clamp Quick Mount (NM, AM, GM)
1 Turn the damper shaft until the blades are fully closed.
2
➀
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
➀
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 recom-
mended).
4
➀
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
➀
Snap on the refl ective position indicator.
➁
Adjust end-stops, if required.
6
Mount actuators indoors. If mounted outdoors, use approved protective enclo-
sure.
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 electroni-
cally 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
M40024 - 05/10 - Sub
ject to chan
g
e.
© Belimo
Aircontrols
(USA
), Inc.