mounting heights for acuators

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Always check the most current revision of the ANSI A156.19 standard for recommendation or requirement of the location of a Knowing Act switch. 2019 ANSI A156.19 states the requirement of the ...
Bottom mounting fitting on 9954 is taller than 4954. The taller bottom fitting is required for a fire rated application.
The measurements from center line to centerline of the mounting holes are 2-3/8"  x  6-3/4".
The 2010 and 2030 closer are not the same. The 2010 Series closer uses the (larger) 4010 cylinder which requires a 4" minimum frame tube to mount in. The 2030 uses the (narrow) "Pacer" cylinder...
The maximum door width that pivots have been tested is a 4' wide door.  Any door greater than 4' would shorten the life of the pivots. There is no maximum door height, for offset pivots the ru...