The LCN 2030 series door closer is designed for applied stop applications and requires careful installation and adjustment for optimal performance. This article details the installation process, hold open functionality, and adjustment procedures based on the provided documentation. The closer is regulated prior to shipment, but adjustments may be necessary depending on the specific application. Improper installation or regulation may result in personal injury or property damage, therefore adherence to these instructions is critical.
Installation Procedure
The installation of the LCN 2030 series door closer involves several steps, beginning with verifying the correct hand of the door and closer. The documentation specifies that the hand (Right Hand or Left Hand) will be stamped on the mounting plate. Users should consult the proper template for their specific application.
The installation process proceeds as follows:
- Attach the closer arm to the closer body, ensuring the bend in the arm points towards the door.
- Install the closer, including the attached arm, into the prepared door frame using the provided mounting screws. The mounting plate must be flush with the soffit.
- After mounting the closer in the door jamb, attach the applied stop to the head frame. The stop section must include an access hole to allow for door closer adjustment.
- The track mortise in the top of the door must match the proper template. The roller is then placed in the track, and the track is mounted in the door with the holes for the hold open clip oriented towards the hinge edge. Fastening is achieved with the provided screws.
- With the door open to approximately 45 degrees, pull the arm over the top of the door. Align the hole in the end of the arm with the roller stud. The closer arm is then fitted completely onto the roller stud, and the arm set screw is tightened securely.
Hold Open Functionality
The LCN 2030 series offers a hold open feature. To install and adjust this option, the following steps are required:
- Tip the hold open clip into the track.
- Locate the clip at the desired hold open position and fasten it with a screw.
- Tip the cam into the track and locate it as shown in the documentation, then fasten it with a screw.
- Push the door into the hold open position and verify proper operation.
The documentation provides instructions for adjusting the holding power of the hold open feature. To increase holding power, the screw should be tightened, and the cam slid towards the latch edge of the door. To decrease holding power, the screw should be loosened, and the cam slid towards the hinge edge. Re-tightening the screw completes the adjustment.
Adjusting Closing Power and Speed
The LCN 2030 series door closer is shipped with the minimum closing power pre-set. To increase the closing power, the spring adjusting screw should be turned clockwise. The documentation notes a maximum adjustment of 36 turns.
Adjustments to closing speed are also possible. Regulating screw locations are indicated in an illustration and on the door closer label. To adjust the main speed, the regulating screw is turned clockwise to decrease speed or counter-clockwise to increase it.
Backcheck Functionality
The closer incorporates a backcheck feature designed to dampen the opening speed of the door. The documentation advises using sufficient backcheck to slow the door’s opening speed. To increase resistance, the regulating screw should be turned clockwise.
Important Cautions
The documentation includes several cautions regarding installation and adjustment:
- Do not use abrupt backcheck.
- Do not expect the door closer to act as a door stop.
- Do not remove the cover plate to make adjustments.
- Improper installation or regulation may result in personal injury or property damage.
- Maximum opening torque is 15 ft-lbs (21 N-m).
Closer Control Diagram
The documentation references a Closer Control Diagram illustrating the locations of the regulating screws for backcheck, main speed, latch speed, and hold open. Users are directed to consult this diagram for precise adjustment points.
Handing Considerations
It is essential to ensure the hand of the door matches the hand of the closer. The documentation emphasizes that the correct hand (RH or LH) will be stamped on the mounting plate.
Applied Stop Requirement
The LCN 2030 series is specifically designed for use with an applied stop. The applied stop must be installed correctly to allow for door closer adjustment.
Conclusion
The LCN 2030 series door closer requires careful installation and adjustment to ensure proper functionality and safety. Key steps include verifying door handing, correctly mounting the closer and arm, and utilizing the provided adjustment screws to fine-tune closing power, speed, and backcheck. Adherence to the provided cautions is crucial to prevent injury or property damage. The hold open feature offers added convenience, but requires separate installation and adjustment.