Programmable DIP switch delay setting - either 10 20 30 or 60 seconds delay of door release to permit passage clearance
Inputs for normally Open 2- or 4-wire detectors and 4-wire normally closed detectors
Trouble and alarm relays for communication with the fire alarm control panel if required
Audible trouble sounder to indicate when the release device is not operational
On board diagnostic LEDs for easy troubleshooting
Testing function allows routine fire door testing without requiring activation of the smoke detector
Includes an integrated Battery Backup Module that allows this fire door release device to stand alone from the fire alarm system and act independently in the event of a power outage
OPEN only (all LiftMaster operators) or SAFETY only (LiftMaster operators with type B2 C2 L2 T T1 or TS control wiring) after vehicle passes over treadle.
The weight of the vehicle compresses an electric switch which sends an open signal to the door.
Requires a 2-wire connection to the operator but does not require power to function
May be used in two different ways; as an OPEN only control (all LiftMaster operators) or as an OPEN/CLOSE control (only LiftMaster operators with types B2 and S2 control wiring). In the latter case pulling the cord will open a fully closed door close a fully opened door and reverse a closing door.
Pulling the cord whlie the door is opening will either have no effect (type B2 wiring) or will stop the door (Solid State Logic Control Board).
WARNING: When used on most industrial operators this control will not stop the door. Use another control that has a STOP button in conjunction with this control.
May be used in two different ways: as an OPEN only control (all LiftMaster operators) or as an OPEN/CLOSE control (only LiftMaster operators with types B2 and S2 control wiring).
In the latter case pulling the cord will open a fully closed door close a fully opened door and reverse a closing door.
Pulling the cord whlie the door is opening will either have no effect (type B2 wiring) or will stop the door (Solid State Logic Control Board).