344940 REV2 03/17/2020
©
Copyright 2020 Wayne Dalton, a division of Overhead Door Corporation
22
STEP 12
FUSIBLE LINKS AND CABLE ROUTING
Fusible links are designed to melt in the event of a fire and are shipped in a
package with the door. The links must be located in such a way that they will
be exposed to any fire that may be inside the building. If shutters are installed
on both sides of the opening, it is recommended that the cables and fusible
links should be interconnected so that both shutters close during a test or
detector activation. The Authority Having Jurisdiction may require this, and
Factory Mutual (FM) requires this.
IMPORTANT:
THE RELEASE LEVER MUST DROP REGARDLESS OF WHICH CON-
NECTION IN THE CABLE SEPARATES.
In addition to fusible links, some codes and construction will require the door
to be integrated into the building’s fire alarm system. This can be done with
electro-mechanical devices such as the Waynegard . For such devices, see the
installation instructions included with them.
Generally any fusible link must be at least 6” away from any fixed point (ex:
turnbuckle, pulleys etc.) or sufficient enough that the drop out mechanism
and tension release arm can swing down (see Appendix D for additional infor-
mation).
A FUSE LINK HOUSING IS REQUIRED IF A DROP CEILING EXISTS ABOVE THE SHUTTER OPENING IN ORDER TO COMPLY WITH THE PROVISIONS OF NFPA 80 AND IN
ORDER TO KEEP THE FUSE LINK EXPOSED TO THE HEAT OF A POTENTIAL FIRE, RATHER THAN BEING LOCATED ABOVE THE DROP OR FALSE CEILING.
Install the test handle as shown. Adjust cable tension using turnbuckles.
STEP 13
TEST DROP PROCEDURE
Prepare to Test Drop:
IMPORTANT:
PRIOR TO DROPPING THE SHUTTER, ENSURE THE SHUTTER OPERATES FREELY AND PROPERLY IN NORMAL OPERATION.
WARNING
REMOVE THE AWNING CRANK WINDING SHAFT PRIOR TO TEST DROPPING THE SHUTTER! THE AWNING CRANK ROTATES RAPIDLY DURING TEST PROCEDURE, AND
COULD CAUSE SEVERE INJURY.
CAUTION
PER NFPA 80 FUSIBLE LINKS MUST BE LOCATED NO MORE THAN
18 INCHES BELOW THE CEILING ON BOTH SIDES OF THE SHUTTER
OPENING, AND NEAR THE SHUTTER OPENING ON THE SIDE THE
SHUTTER IS MOUNTED.