|
|
|
|
|
LiftMasterŽ release
devices
|
 LiftMasterŽ release devices control the closure of a rolling
fire door, counter fire door, fire shutter or track door in
an emergency situation. Release devices work in conjunction
with the door or shutter to provide an effective fire and
smoke control system by preventing spread beyond the area of
origin. The device's basic function is to provide a
time-delayed release of fire door or shutter upon receiving
a signal from a smoke detector or central alarm station (or
other remote switching device) or upon loss of power.
Release devices are also an integral part of the fusible
link assembly, releasing the door or shutter when the
fusible link separates.
Models are available for use with both non-motorized and
motorized door applications. For motorized door
applications, select models can be used to create a fully
automated door closing system when used in conjunction with
a standard commercial operator by providing features
typically found on expensive, special-order fire door
operators.
LM90 - WPS - A-specifications
LM90 - WPS -
B-specifications
Installation Manual
LM90 - WPS - A/B
LiftMaster Web page |
| |
| |
| |
|
|
|
|
