Installing the Von Duprin XP98/XP99 Center Case Retrofit For Rim Exit Devices

Warranty: 3 Years Time to Install: 45 minutes to one hour Tools: 10-24 tap, 1/4-20 tap, drill bits, tools to adjust door closer, drill motor, 5/64" hex wrench I was invited to the retrofit of a Von Duprin 99 Series Exit Device using...


Warranty: 3 Years
Time to Install: 45 minutes to one hour
Tools: 10-24 tap, 1/4-20 tap, drill bits, tools to adjust door closer, drill motor, 5/64" hex wrench

I was invited to the retrofit of a Von Duprin 99 Series Exit Device using the new XP98/XP99 Center Case on one of a pair of entrance doors leading into a gymnasium. There had been an attempted burglary in which one of the exit devices center cases was damaged.

Von Duprin had recently introduced the XP98/XP99 Rim Exit Device with the new patented center case design, a new two-piece latch bolt, heavy duty bracket, strike plates and hardened mounting hole guides for the center case. The operation of the XP98/XP99 has also been changed. The 98/99 push bar is directly linked to the latch bolt; pressing the push bar retracts the latch bolt. When the push bar is pressed, the internal locking mechanism of the XP98/XP99 is retracted, releasing the latch bolt. As the door is opened, the latch bolt pivots out of the way, enabling the door to be opened.

When the door is closed and dead latched, the two-piece latch bolt is in the rest position. If force is exerted onto the door, the latch bolt comes 90 degrees to the strike surface. According to Von Duprin, “The XP98/XP99 Rim Exit Devices meet ANSI/BHMA A156.3 Grade 1, and are UL listed.” In addition, “The XP98/XP99 has a static load force resistance of more than 2,000 pounds.”

To provide an alternative to replacing an entire 98/99 exit device when only the center case needs replacing, the XP 98/99 is available as a Center Case Retrofit, part number XP99-909-050676. The XP98/XP99 has been designed to match the footprint of the current 98/99 rim exit device. This enables this new center case to be installed onto an existing 98/99 exit device rail. The Von Duprin Center Case Retrofit contains the XP98/XP99 center case, case cover, XP bracket, push bar guide and a 909 strike package or a 954 strike package. Note: The old strikes including the 299, 299F and the 499F cannot be used with the XP98/XP99 exit device or center case.

There are retrofit limitations as the exit device mounted onto the gymnasium doors was manufactured during the time when Von Duprin used exposed rivets on the portion of the push bar that retracts into the mechanism case when the push bar is depressed. These early versions of the 98 and 99 Series exit devices cannot be used with the XP 98/99 Center Case retrofit.

Luckily, the locksmith had several Von Duprin 9947 Concealed Vertical Rod Devices in his service vehicle. Since many Von Duprin exit devices use interchangeable parts, we were able to use the push bar from a 9947 Exit Device to retrofit the XP98/XP99.

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