model number location lcn

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To determine the SC series, measure center to center on the closer body bolt hole mounting pattern and an overall description of the closer and arm. SC91 -- 6-3/8" x 3/4" -- unique arm SC93 -- 9-1...
The 4330 / 4430 is an obsolete ME closer replaced by the 4310ME or 4410ME Series.
Neither Dor-O-Matic or LCN manufacturers a floor closer. 
The only spring size available is a size 4 (2314ME, 4314ME, 4414ME) which has a stronger spring to help insure that the door will close in a fire situation.
The "320G" is the # on a UL sticker attached to the arm of most LCN door closers, and is not a door closer model number.  The "320G" means that the arm is not a mechanical hold open device and OK t...
Product shipped on or after Feb. 8th, 2016 The "3034" and "3034H" are internal part designation that LCN uses to specify regular (3034) and hold open (3034H) roll...
On Feb 8th, 2016 - LCN launched the redesign of the Hold open clip which changed multiple components of our Track style closers, including the roller, track, hold open clip, and bumper. 
LCN CAD detailed drawings are internal confidential documents, and are not available.
The date is a 4 digit #. The first 2 numbers indicate the week it was made, and the last 2 numbers indicate what year it was made. On most surface mounted closers, the model #,  date code, ...
The Fusible Link arm is available with the 4010, 4020 and 4110 series closers. They all use the same Fusible Link arm. The UL Listing number is for the Fusible Link arms is R1943. The 4010 Serie...