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Why is the 110NL cylinder assembly required with Von Duprin 22 and 98/99 series device NL-OP applications?

These applications use a rim cylinder, and a normal rim cylinder anchor plate that would be affixed to the push side of the door would interfere with the operation of the master cam on the back side of the exit device center case. The 110NL cylinder assembly provides an alternate way of mounting the rim cylinder.

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