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“ WHAT DOES QELA STAND FOR ”

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Resolution: The 4041 Rw/PA and the Hw/PA have the same template. The only difference is the arm. The 4041/4040XP Hw/PA, if mounted to the 180° template, will hold the door open at 180°. Rw/PA is Regular A...:

What is the purpose of a Swing Free arm on a 4310ME?

Resolution: The (SF) "Swing Free" arm allows the door to be put into hold open position, but then repositioned (swing free) to any other degree of opening without taking the closer out of the hold open mode....:

Does Von Duprin offer a classroom security option with visual status indication?

Resolution: Von Duprin offers two options: The CDSI/HDSI Dogging Indicator provides an at-a-glance verification of the status of the door from inside of the room. Visible “LOCKED” and “UNLO...:

What does BSS and CSS stand for?

Resolution: BSS means - Blade Stop Spacer. A -61 for example would be used after the series of the closer being used.CSS means - Cush Shoe Support. A -30 for example would be used after the ser...:

What is the delay time adjustment on a Delayed Action closers?

Resolution: 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...:

Does the PD listed with lock model number mean anything?

Resolution: Schlage and Falcon use the P cylinder suffix to designate conventional key-in-lever (KIL) 6 pin cylinder. The D means that the lock will have a deadlatch.:

What is exposed glass size?

Resolution: When dealing with glass lights in doors, there are three (3) critical dimensions which must be coordinated: Exposed Glass Size (EGS) - the horizontal and/or vertical dimensional size of the vision...:

What does XQ06-878 stand for?

Resolution: The XQ06-878 is used to stamp "DO NOT DUPLICATE" on a key.:

What does AVB mean in a closer and which closers are available with this option?

Resolution: AVB stands for Advanced Variable Backcheck. It is a cylinder option when ordering, that allows backcheck to start at about 45 degrees instead of the normal 75 degrees. 4110, 4210...:

What does the LC stand for in PIM-400-1501 LC?

Resolution: LC just means less 1501 board now. :

CO-series and AD-series 993R Exit Trim and FRP (Fiberglass Reinforced Plastic) Doors

Resolution: No, the Schlage AD-series and CO-series 993R CVC or CVR will only work on hollow metal doors, not FRP or wood doors. :

What would the 904H stand for on a Falcon Monarch exit device?

Resolution: The "904H" is a UL Panic label that is placed on the centercase of the Falcon/Monarch Panic device.: