falcon el stay open

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Use a normally closed fire alarm as the input to the power supply option board (PS873-2 or PS914-2RS), this will hold the latch retracted.  During a fire alarm, the contact will open, dropping...
A 4040SE would not hold the door open if it has : No Voltage or Improper Voltage. Check that the track has proper voltage going to it (24V AC/DC or 120V AC). If 120 volts is supplied...
To adjust the hold open time on a 4600 (4630/4640) operator: Press the "MODE" button on the control box 1 time to get into programming mode. The "YELLOW" mode indicator LED next to "HOLD OPEN TI...
If an ME Series closer creeps shut or will not hold open, Verify proper voltage is being supplied to the closer, if correct Check the on/off switch. Verify the voltage on the 2 pin co...
Yes the Von Duprin QEL exit device retracts the latch bolt and pushpad. Pushpad and latch bolt stay retracted as long as power is applied to the QEL exit device.
EL wiring harness is no longer needed with new EL potted modules.