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FAQs

Since there is a field installable MEL kit and a field installable RX switch kit, can both be field installed on the same device?

Resolution: Yes, the field installable MEL kit and RX switch kit can be installed on the same device. Note that LM and DM switches are never field installable options. They must...:

What are common troubleshooting issues and solutions for MEL device?

Resolution: The installation instructions 941367 have common troubleshooting steps such as these: · Check mechanical function (including vertical rod adjustmen...:

What does SGL mean on an Ives pull?

Resolution: When ordering an Ives pull, there are 3 possible prefixes to start the description "Blank", PR, or SGL."Blank" or No Prefix is the most common selection and would get a single pull to be mounted on...:

What is comparable to a Sargent 7000 series?

Resolution: The Von Duprin 237Lx378LThis unit is a lever by lever with concealed vertical rods. :

Can any Glynn Johnson overhead stops be mounted on the pull side?

Resolution: For surface applied overhead stops, specify a J suffix for pull side mounting. :

How much extra distance can a Glynnn-Johnson (GJ) overhead stop be pushed when forced?

Resolution: A door can open an additional five to seven degrees when forced. :

What is the difference between the 471U, the 472U, and 473U strikes?

Resolution: The 471U is for a 5547 with a metal door and frame.The 472U is for a 5547WDC with a wood frame and a 1-3/4" thick door. The 473U is for a 5547WDC with a wood frame and a 2-1/4" thick door. :

Can I use an RX switch to trigger a QEL?

Resolution: This is generally not recommended, but would depend on the desired description of operation of the opening.For most QEL/MEL applications;If an RX switch is used to trigger the operation, the motor ...:

What does the "D" signify when ordering a MB1-D?

Resolution: The "D" is for the cut out of the coordinator, not the mounting bracket. :

Did Von Duprin make a door position switch at one time?

Resolution: Yes. MS764 made by Sentrol: