Belimo LMB series - Mechanical Features

8
Manual Override
The Belimo non-spring return actuators have a
black, “manual override button” located on the top
of the housing. Press this button and the gear train
is disengaged so the damper shaft can be moved
manually. Release the button and the gear train is
re-engaged.
Use the manual override to test the installa-
tion without power. For tight shut-off
the damper should close with
5° of actuator stroke left.
Manual
override
button
Operations
Mechanical Features
®
Mechanical Angle of Rotation Limiting
The adjustable stops are needed when there is
no damper stop or if you want the damper to
stop rotating before it reaches its stops. The
non-spring return actuators can be indefinitely
stalled in any position without harm.
1. Loosen the two end stops with a No. 2 Phillips
head screwdriver being careful not to unscrew
the captive nut under the slot.
2. Move the stops (in 2.5° steps) to the desired
position and re-tighten the screws.
2x
Z-SMA for replacing AM and SM actuators
Z-GMA for replacing GM actuators
GM
AM/SM
1
A
B
10/08 Subject to change. © Belimo Aircontrols (USA), Inc.