If replacing a motor used on a damper with fusible link and shaft spring, investigate
operation and determine that external spring and link are operable. Refer to damper
manufacturer’s instructions for the specific damper in question.
Internal Mounted
The Belimo actuator is located
in the same place when
internally mounted. The
jackshaft goes through the
Belimo and the anti-rotation
strap holds the other end.
If needed, a perforated strap
or U shaped sheet metal
bracket can be put around the
actuator for mechanical
support.
The jackshaft is disassembled
to remove old motor and
mount the Belimo actuator.
Wiring and testing internally
mounted actuators is identical to
that for the externally mounted
actuators.
WARNING!
Actuator anti-rotation strap may not be screwed to the duct. It must attach to
either the sleeve or to the mounting bracket. The duct must be able to fall away
from the damper in case of ceiling collapse in a fire.
WARNING!
USE CAUTION!
Spring is under high torsion and may cause serious injury! If any external
springs are present, exercise caution – wear face and hand protection
.
Air Balance Honeywell ML&MS Types to Belimo FSxx March 2018
13
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