1. Introduction and Overview
The Von Duprin 99 Series Surface Vertical Rod Exit Device is engineered to provide safe and reliable egress as a critical component of fire and life safety systems. Manufactured under an ISO 9001 Quality Management System, this device meets or exceeds established U.S. domestic and international standards.
All 98 and 99 series exit devices are UL listed for Panic Hardware or Fire Hardware and are certified to ANSI A156.3, 2001, Grade 1. Certain models also hold certifications for Hurricane Resistant Applications. It is important to note that unusual operating conditions, environments, and external influences can impact the proper application of this product. Any modifications to the product will also affect UL listings.
Application engineering services are available from Von Duprin to assist with proper product selection and to address any questions users may have, especially when unusual application conditions exist or modifications are being considered.
Figure 1: Von Duprin 99 Series Surface Vertical Rod Exit Device. This image displays the main assembly of the device, including the horizontal push bar mechanism and the vertical rods. Also shown are smaller components, likely parts of the rod assembly or mounting hardware, and a key-like tool.
2. Setup and Installation
Proper installation is crucial for the safe and reliable operation of the Von Duprin 99 Series Exit Device. It is highly recommended that installation be performed by qualified personnel in accordance with local building codes, fire safety regulations, and the detailed instructions provided in the product's installation guide (not included in this manual).
Before beginning installation, ensure the door and frame are prepared correctly to accept the device. Verify that all necessary components are present and undamaged. Pay close attention to the alignment of the vertical rods and the proper engagement of the latching mechanisms at the top and bottom of the door.
Consider the environmental conditions of the installation site. Extreme temperatures, humidity, or corrosive atmospheres can affect the device's performance and longevity. If an unusual application condition exists, consult with Von Duprin's engineering services prior to installation.
3. Operating Instructions
The Von Duprin 99 Series Surface Vertical Rod Exit Device is designed for intuitive and immediate egress. To operate the device:
- From the Egress Side (Inside): Apply pressure to the horizontal push bar. The bar will depress, retracting the vertical rods and unlatching the door.
- From the Entry Side (Outside): Entry typically requires an external trim (e.g., lever, knob, or pull with key cylinder) which is sold separately. Consult the specific trim's instructions for entry operation.
Ensure the path of egress is clear and unobstructed at all times. The device should operate smoothly and without excessive force. Any resistance or binding indicates a potential issue that requires immediate attention.
4. Maintenance
Regular maintenance is essential to ensure the continued safe and reliable operation of your Von Duprin exit device. Adhere to the following guidelines:
- Routine Inspection: Periodically inspect the device for any signs of wear, damage, or loose components. Check the push bar for smooth operation and ensure the vertical rods retract fully and consistently.
- Cleaning: Clean the device surfaces with a soft, damp cloth. Avoid abrasive cleaners or solvents that could damage the finish or internal mechanisms.
- Lubrication: If the device begins to feel stiff or noisy, a light application of a silicone-based lubricant to moving parts (e.g., pivot points, rod guides) may be beneficial. Do not over-lubricate.
- Fastener Check: Periodically check all mounting screws and fasteners to ensure they are tight. Loose fasteners can lead to misalignment and improper operation.
If any significant issues are observed during maintenance, refer to the Troubleshooting section or contact qualified service personnel.
5. Troubleshooting
If your Von Duprin 99 Series Exit Device is not functioning as expected, consider the following common issues and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Push bar is stiff or binds | Lack of lubrication, misalignment, debris | Clean and lubricate moving parts. Check for obstructions. Verify proper alignment of the device on the door. |
| Vertical rods do not retract fully | Obstruction in rod channels, bent rods, worn components | Inspect rod channels for debris. Check rods for straightness. If components are worn, professional service is required. |
| Device makes unusual noises | Loose fasteners, worn internal parts, lack of lubrication | Tighten all visible fasteners. Lubricate moving parts. If noise persists, contact a qualified technician. |
| Door does not latch securely | Misalignment of strikes, worn latch bolts, door sag | Adjust strikes. Inspect latch bolts for wear. Check door hinges and frame for stability. |
For complex issues or if the problem persists after attempting these solutions, it is strongly recommended to contact a certified locksmith or a Von Duprin authorized service technician.
6. Specifications
Key specifications for the Von Duprin 9927EO 3 US28 Exit Device:
- Model Number: 9927EO 3 US28
- Brand: Von Duprin
- Item Weight: 17.3 Pounds
- Package Dimensions: 36.75 x 17.3 x 10.5 inches
- Manufacturer: INGERSOLL RAND SECURITY TECHNOLOGY
- Control Method: App (Note: This specification may refer to advanced system integration capabilities, not direct app control of the mechanical device.)
- Date First Available: October 22, 2013
7. Warranty and Support
For detailed warranty information, please refer to the official Von Duprin warranty statement provided with your product at the time of purchase or available on the manufacturer's website. Warranty terms typically cover defects in materials and workmanship under normal use.
Should you require technical assistance, have questions regarding product application, or need to report a defect, please contact Von Duprin directly or an authorized Von Duprin dealer. Application engineering services are available to provide guidance and support.
Always ensure that any service or repairs are performed by qualified and authorized personnel to maintain product integrity and warranty validity.