Delayed Action Push Button

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AVB stands for Advanced Variable Backcheck. It is a cylinder option when ordering a 4111 closer (without an ST) that allows backcheck to start at about 45 degrees instead of the normal 75 degrees. ...
Regular LCN closers have "3" regulating valves for General Speed, Latch Speed, and Backcheck. If the LCN closer has "4" regulating valves, then the closer has the Delayed Action feature. De...
The 4040XP Series is not available with delayed action. When a delay cylinder is ordered, you will receive the standard 4041 cylinder, not the 4040XP cylinder.
If the error "Device does not support this action - E802" appears when trying to couple the lock, it is generally because the user is not pressing the SW1 tamper button 3 times, but instead pressin...
In order to properly couple, the interior pushbutton must be held down while tapping the SW1 (tamper switch) three times.  This will enable the lock to couple to the HHD.
DEL, delay closing
How to:  What are the steps to adjust a door closer?Facts: All LCN and FALCON door closers will have 3 regulating valves and a spring adjustment.  All closers with a "Delay" feature ...