Closing: To be by release of fusible link in the event of fire. Bracket is to be
equipped with an automatic starting device that provides rotational energy from a spring
to close the shutter.
A governor is to be furnished where required by the Underwriters Laboratories, Inc.
Hood: To be square shape galvanized steel (stainless steel) minimum 24 gauge.
Operation: For shutters to be manual push-up with lift handle on bottom bar; (crank operation with removable handle, or motor operation).
Finish: Galvanized steel with a baked-on polyester primer. (Stainless steel in a #4 satin finish).
|Cylinder Locks: Standard or master keyed.
Smoke Detection Equipment including electro magnetic release device and local smoke detectors.
UL Listed brush smoke baffles for lintel and guides.
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