The CRL Jackson Overhead Concealed Door Closer system is a specialized mechanical solution designed for seamless integration with overhead door systems, particularly center-hung and offset configurations. This article provides a detailed overview of the installation process, hardware components, and maintenance considerations based on official documentation from C.R. Laurence, the manufacturer of CRL products. The guide is intended for U.S.-based professionals and DIY users seeking accurate, authoritative instructions for installing these door closer systems.
Overview of the CRL Jackson Overhead Concealed Door Closer
The CRL Jackson Overhead Concealed Door Closer is engineered for use in commercial and residential settings where overhead doors are employed. It is offered as either a standalone closer body or as part of a complete package that includes mounting brackets, arms, and pivots. The system is particularly suited for center-hung and offset door installations, ensuring smooth, controlled closure while maintaining a discreet, overhead profile.
The standard package includes: - Closer mechanism - Mounting brackets - Arms and pivots (specific to the installation type)
The system is compatible with a range of door types and is designed for both new installations and retrofit applications. The installation process involves precise alignment, mechanical adjustments, and secure fastening to ensure optimal performance and longevity.
Installation Hardware and Components
The installation of the CRL Jackson Overhead Concealed Door Closer involves several key components and hardware items, which are detailed in the manufacturer’s documentation. These include:
- Closer Mechanism: The core component that provides the closing force and speed control.
- Mounting Brackets: Used to secure the closer to the door header or frame.
- Arms and Pivots: Specific to either center-hung or offset configurations, these components transfer the closing force from the closer to the door.
- Fasteners: Typically 1/4"-20 or #8-32 screws, depending on the installation type.
- Adjustment Screws and Valves: Used to fine-tune the closing speed and force.
The manufacturer recommends using only the fasteners provided with the kit to ensure compatibility and structural integrity. Users are also advised to wear appropriate safety equipment, including eye protection, during installation.
Center-Hung Door Installation
The center-hung door configuration is one of the primary applications for the CRL Jackson Overhead Concealed Door Closer. This setup involves a door that is supported by a central pivot point and is balanced using counterweights or springs. The installation process for this configuration includes the following steps:
- Preparation of the Header and Frame: Ensure that the door header and frame are properly constructed and aligned. The closer must be mounted to a stable, load-bearing structure.
- Mounting the Closer Body: Attach the closer body to the header using the provided mounting bracket and screws. It is important to follow the manufacturer’s torque specifications to avoid over-tightening.
- Installation of the Top Arm and Pivot: The top arm is connected to the closer body and the door. The pivot point must be aligned to allow for smooth door movement.
- Adjustment of the Closer: Use the adjustment valve to control the closing speed. The door should close smoothly without slamming or sticking.
- Testing and Final Adjustments: Once installed, test the door closure multiple times to ensure consistent performance. Make any necessary adjustments to the closer’s tension or speed.
The manufacturer emphasizes the importance of adhering to all safety precautions during the installation process, including the use of safety blocks to prevent accidental door closure while adjustments are being made.
Offset Pivot Installation
For offset pivot doors, the installation process involves a different set of components and considerations. The offset pivot system allows the door to swing off-center, which is useful in spaces where a traditional center-hung system is not feasible.
Key steps in the offset pivot installation include:
- Mounting the Header Pivot: Secure the header pivot to the door header using the provided screws. This component serves as the primary support point for the door.
- Installation of Intermediate Pivots: These pivots are placed between the header and the door to provide additional support and stability. They must be aligned correctly to ensure smooth door operation.
- Mounting the Closer Arm: The closer arm is attached to the door and connected to the closer body. The arm must be adjusted to provide even force distribution across the door’s range of motion.
- Adjustment and Testing: As with the center-hung configuration, the closer must be adjusted to ensure smooth, controlled closure. Test the door multiple times to confirm proper function.
The manufacturer notes that offset pivot installations may require additional hardware, such as shims or backup plates, to ensure proper alignment and load distribution.
Glass Mount and Wall Mount Configurations
The CRL Jackson Overhead Concealed Door Closer can be mounted either to a reinforced wall or to a glass panel, depending on the installation requirements. The manufacturer provides specific guidelines for each configuration.
Wall Mount Installation
For wall-mounted installations, the following steps are recommended:
- Preparation of the Wall Surface: Ensure the wall is clean, level, and capable of supporting the door’s weight. A reinforced wall is preferred for long-term stability.
- Mounting the Closer to the Wall: Secure the closer body to the wall using the provided mounting bracket and fasteners. The manufacturer recommends using a level to ensure proper alignment.
- Connecting the Closer to the Door: Attach the closer arm to the door and adjust the pivot point to allow for smooth operation.
- Adjustment and Testing: Fine-tune the closer’s tension and speed using the adjustment valve. Test the door closure to ensure consistent performance.
Glass Mount Installation
For glass-mounted installations, the process is similar but requires additional steps to accommodate the glass panel:
- Preparation of the Glass Panel: The glass must be tempered and pre-drilled to accept the mounting hardware. The thickness of the glass affects the placement of the mounting holes.
- Mounting the Closer to the Glass: Secure the closer body to the glass using the provided mounting clamps. The manufacturer recommends using a level to ensure the closer is installed straight.
- Connecting the Closer to the Door: Attach the closer arm to the door and adjust the pivot point as needed.
- Adjustment and Testing: As with other configurations, the closer must be adjusted to ensure smooth operation. Test the door closure multiple times to verify proper function.
The manufacturer provides different mounting kits for glass and wall installations, each containing the appropriate hardware for the specific configuration.
Accessories and Optional Components
The CRL Jackson Overhead Concealed Door Closer system offers a range of optional accessories to enhance functionality and customization. These include:
- Floor Guide: Used to guide the door’s movement and prevent lateral shifting.
- Anti-Lift Block: Prevents the door from being lifted off its track, enhancing security.
- Door Stops: Installed at the open and closed positions to limit door travel.
- Glass Edge Protectors: Protect the edges of the glass from damage during installation and use.
- End Caps: Used to cover the ends of the sliding tube for a finished appearance.
These accessories are typically included in the installation kits or can be purchased separately. The manufacturer recommends using only CRL-approved accessories to ensure compatibility and performance.
Maintenance and Care
To ensure the longevity and performance of the CRL Jackson Overhead Concealed Door Closer, regular maintenance is recommended. The manufacturer provides guidelines for cleaning and protecting the stainless steel components of the system.
- Cleaning: Use a mild detergent and water to clean the stainless steel parts. Avoid abrasive cleaners or scrubbing pads, which can scratch the surface.
- Protection of Damaged Areas: For minor scratches or damage, the manufacturer recommends using abrasive pads like CRL Cat. No. SB7447F to rub the area in the direction of the grain. After repair, apply a surface protection system such as CRL 6K Hydrophobic Surface Protection for long-term durability.
- Lubrication: While the manufacturer does not recommend routine lubrication, it may be necessary for doors in high-traffic areas or those exposed to harsh environments. Use only manufacturer-approved lubricants.
Technical Specifications and Performance
The CRL Jackson Overhead Concealed Door Closer is designed to handle a range of door weights and sizes. The manufacturer provides the following specifications:
- Door Thickness: Compatible with 3/8" or 1/2" (10 or 12 mm) tempered glass.
- Adjustable Speed: The closer includes a speed adjustment valve that allows users to control the closing speed.
- Mounting Options: Available for both wall and glass mounting.
- Construction: Solid stainless steel construction for durability and minimal maintenance.
The manufacturer also notes that the system is designed for smooth operation, with minimal resistance during door closure. This is achieved through the use of high-quality bearings and precision engineering.
Installation Considerations
Before beginning installation, it is important to review the manufacturer’s instructions thoroughly. The following considerations are highlighted in the documentation:
- Hole Fabrication: Holes must be cut and drilled prior to tempering the glass. The placement and type of hole depend on the installation configuration.
- Kit Selection: The manufacturer offers four different kits to accommodate various installation needs. Users should select the appropriate kit based on the door type and mounting requirements.
- Safety Precautions: Always wear proper eye protection and appropriate safety equipment. Place a safety block between the door and the jamb to prevent accidental closure during adjustments.
Conclusion
The CRL Jackson Overhead Concealed Door Closer is a versatile and durable solution for center-hung and offset door installations. With proper installation, adjustment, and maintenance, the system provides smooth, controlled closure while maintaining a discreet, overhead profile. The manufacturer’s documentation provides detailed instructions and specifications to guide users through the installation process, ensuring optimal performance and longevity.
For users seeking a reliable, high-performance door closer system, the CRL Jackson model offers a robust solution suitable for both commercial and residential applications. By following the manufacturer’s guidelines and using only the recommended hardware and accessories, installers can ensure a successful and trouble-free installation.