Which mullions are approved for HH devices

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HH hurricane rated devices usually have a deferent strike and fire rated mullion. Standard 98/99 series exit devices can be converted to HH by changing the strike and mullion on pair of doors. ...
The Von Duprin XP98/99 device uses a different strike than standard 98/99 device. The 909 strike is for non fire rated XP devices and the 954 strike is for the fire rated XP device. 49/9954 mul...
EL98/99-4 ft rim device required minimum of 35.2" with 5/8" stop height door opening on single door and 35.56" with 4954/9954 mullion.
The backset for a 98/99 rim PANIC device with 1609 strike is 2 3/8" from center of the opening to center line of the device. See template
For non fire rated doors only the 1609 strike would be used on the inactive leaf that is flush/surface bolted or with a *surface or concealed vertical rod device on other door leaf.
All the templates can be found at us.allegion.comPlease click here
Backset dimensions will vary depending on the device, application and the opening configuration. If you have questions on specific device backsets, please e-mail your request (including a descripti...