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FAQs

Resolution: A design change occurred in 2001 to address a locking/unlocking issue with the discontinued D73 lever locks. This included modifying the cam and plug, spindle and using a different plung...:

When was the Von Duprin E98/99 device obsoleted?

Resolution: The electrified Von Duprin E98/99 device was obsoleted in August 2005 and replaced by the E996L trim. (The E996L was then obsoleted and replaced by the M996L/LBE, mot...:

Can intermediate pivots be used to hang a door?

Resolution: Intermediate pivots be used to hang a door but most of the weight is carried by the bottom pivot as each intermediate pivot can only carry 90 pounds. :

How does the ND75 operate?

Resolution: The ND75 is a Classroom Security Lock installed primarily on classroom doors. A classroom lock (ND70) with an additional cylinder on the inside so that the teacher can lockdown the room witho...:

Does Glynn Johnson still make the 310/320/330 model?

Resolution: The 310/320/330 was discontinued in 1995 and replaced by the 410 series. IMPORTANT: The 410 is not a direct replacement.Click here for 320 and 322 series locks:

What lever trim is used for the Von Duprin 55 Rim?

Resolution: The 379L trim is used with Von Duprin 55 rim device.:

What is the model 7764

Resolution: This is a mortise style door position switch. Link 7764:

Should I use the E7500 or the E996 L trim to control the outside lever?

Resolution: To control the outside lever trim with access control system on the 98/9975 mortise device you could use the E996L-M electric trim or E7500 electric mortise lock. Either one of them will lock/unloc...:

Can I add a cylinder function to the 98/99 Rim EO device?

Resolution: To add a cylinder to the 98/99-EO rim device order a 110NL-MD for metal door or 110NL-WD for wood door with a standard rim cylinder and prep the door per template.:

How to manage coupling passwords in HHD How to change coupling passwords in HHD

Resolution: - HHD now holds two Coupling Passwords, the current one and the previous one. o If the device fails to make a change becaus...: