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“ what does OP mean? ”

RELATED FAQS

Resolution: You would have to order the device as 88NL less trim, the device will be shipped as an 88EO. The EO device has an NL cam to accept a rim cylinder tailpiece. :

Where is the template for the 25C NL-OP?

Resolution: The NL-OP function for 25-C uses the 718C trim, so template T-2211 for metal doors and W-2211 for wood doors for 718 trims prior to 2/28/2011. T-2211 for trims prior to 2/28/2011 W-2211 for...:

How to order a 25-C device with the NL-OP trim function?

Resolution: Device would be ordered as a 25C-C as of June 2012.The C-C suffix designates the 25C will come with the 718C-C cylinder control which uses a 1-¼" mortise with a narrow straight cam:

Does Von Duprin offer an NL or NL-OP function with the 8827 exit device?

Resolution: This option is not available as there is no NL cam to directly drive the rods and using a key to lift the heavy stainless, brass or bronze rods would damage the key. :

Does Von Duprin supply the 9875, 9975, 9875-F and 9975-F mortise exit devices with NL-OP trim function?

Resolution: For night latch function with pull by others, the 98/99 series mortise exit device should be ordered as NL less trim, e.g., 9875NL-L/TRIM. We will furnish a device only, and the mortise cyl...: