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...
If your Von Duprin EL (solenoid) device pulls and releases quickly instead of holding the latch retracted, please check all of the items below.In most cases, one or more of these solutions will r...
See the link to a video instruction, Concealed Vertical Rod Exit Device Adjustment.Manual steps:Open door and release top latch bolt by inserting a screw driver in the hole at the top of the d...
The following items may cause the exit devices top latch from being held in the retracted position.
1. The top or bottom rods are out of adjustment.
2. The top latch hold back...
Following exit devices 2227/F, 33/3527A/F, 33/3547A/48A/F, 98/9927/F and 98/9947/48/F have similar rod adjustment procedures.
All top latches control the bottom latch assemblies. When do...
One of the following items may cause the EL1490 device to retract then release:
Incorrect power supply - Verify you have the PS873-2/4TD or PS914-2RS/4RL power supply.
Problems with wire gauge...