Assa Abloy ACCENTRA 50 Series - User Manual

Regular Arm Top Jamb Mount Parallel Arm
Optional Components
Right Hand Door - RH
Left Hand Reverse - LHR
Left Hand Door - LH
Right Hand Reverse - RHR
Right Hand Door - RH
Left Hand Reverse - LHR
Left Hand Door - LH
Right Hand Reverse - RHR
Right Hand Door - RH
Left Hand Reverse - LHR
Left Hand Door - LH
Right Hand Reverse - RHR
Tools Needed:
LEFT
HAND
DOOR
RIGHT
HAND
DOOR
Right Hand
Reverse
Left Hand
Reverse
To Determine Hand of Door: To Identify the Closer Model:
289A Parallel Arm
Bracket
(Used with Parallel
Arm Installation Only)
6-32 x 5/16" Pan Head
Self Tapping Screw
Pinion Cap
1/8" Hex Wrench
Screw Pack
(Refer to page 2 for a list of contents)
Closer
Arm Assembly
Main Arm
Pinion Screw
Regular Arm/
Top Jamb Shoe
Connecting Rod
Forearm
Screw
Arm Slide
Main Arm
50P
Cover
214
Plate
Spring Power
Adjustment
Date
Code
Size
Code
BC Valve
Included Components
50 Series Door Closer
Model 51
Regular, Top Jamb, and Parallel Arms, Non-Hold Open
Installation Instructions
WARNING
This product can expose you to lead which is known to the state of California to cause cancer and birth defects or other
reproductive harm. For more information go to www.P65warnings.ca.gov.
Attention Installer: Any retrot or other eld modication to a re rated opening can potentially impact the re rating of the
opening, and ASSA ABLOY makes no representations or warranties concerning what such impact may be in any specic
situation. When retrotting any portion of an existing re-rated opening, or specifying and installing a new re-rated open-
ing, please consult with a code specialist or local code ocial (Authority Having Jurisdiction) to ensure compliance with
all applicable codes and ratings.
WARNING
80-9350-2531-010 Rev 3 05/24
855-557-5078 x 2 • www.accentra-assaabloy.com
Copyright © 2016, 2023, 2024, ASSA ABLOY ACCENTRA™ Access and Egress Hardware Group, Inc. All rights reserved. Reproduction in whole
or in part without the express written permission of ASSA ABLOY Access and Egress Hardware Group, Inc. is prohibited.

Summary

ASSA ABLOY ACCENTRA Model 51 Door Closer Installation

Installation Types Overview

Introduces Regular, Top Jamb, and Parallel arm mounting options for the door closer.

Components and Tools

Lists included components, optional parts, and necessary tools for door closer installation.

Safety Warnings

Provides critical safety information regarding lead exposure and fire-rated openings.

Supplied Hardware and Adjustments

Details supplied hardware, closer adjustments, and pinion cap/cover installation.

Regular Arm Installation Procedure

Step-by-step guide for preparing the door/frame and mounting the regular arm closer.

Top Jamb Arm Installation Procedure

Step-by-step guide for preparing the door/frame and mounting the top jamb arm closer.

Parallel Arm Installation Procedure

Step-by-step guide for preparing the door/frame and mounting the parallel arm closer.

Overview

1. Function Description
2. Usage Features
3. Maintenance Features

The 50 Series Door Closer, Model 51, is a versatile non-hold open door closer designed for a variety of door types and installation methods, including Regular Arm, Top Jamb, and Parallel Arm configurations. This device is engineered to provide controlled door closing, enhancing safety and security in commercial and institutional settings.

Function Description:

The primary function of the 50 Series Door Closer is to ensure that a door, once opened, returns to a closed position in a controlled manner. This is achieved through a hydraulic mechanism that regulates the speed of the door's swing. The "non-hold open" feature means that the door will always close completely and will not remain open at any specific angle unless manually held. This is particularly important for fire-rated openings and security applications where doors must reliably latch.

The closer's operation involves a spring-loaded piston that is compressed when the door is opened. As the door is released, the spring pushes the piston, forcing hydraulic fluid through a series of valves. These valves control the flow rate of the fluid, thereby regulating the door's closing speed. The system is designed to provide consistent performance over a wide range of environmental conditions.

Usage Features:

The 50 Series Door Closer offers several adjustable features to customize its performance to specific door requirements and user preferences:

• Closing Speed Adjustment: The closer includes adjustable valves for controlling the door's closing speed. This allows installers to set the door to close quickly or slowly, depending on the traffic flow and safety needs of the environment. The recommended adjustment range for closing time is between 3 and 7 seconds from 90° to 0°.
• Latch Speed Adjustment: A separate valve controls the latching speed, which is the final few degrees of the door's closing cycle. This ensures that the door has enough momentum to overcome any latch resistance and fully engage with the frame, without slamming shut.
• Backcheck Function: The closer incorporates a backcheck feature, which provides a hydraulic cushion to prevent the door from being violently thrown open. This protects the door, frame, and hardware from damage, especially in situations where the door might be opened with excessive force or caught by strong winds. The backcheck valve should never be completely closed.
• Spring Power Adjustment: The spring power of the closer can be adjusted to accommodate different door sizes and weights. This is crucial for ensuring that the closer provides adequate force to close the door effectively while also allowing for easy opening. The adjustment is made by turning a spring power adjustment screw, with a maximum of 30 full (360°) turns available. The number of turns required varies based on the door width and installation type (Regular Arm, Top Jamb, Parallel Arm).
• Handing Versatility: The closer is designed to be installed on both right-hand and left-hand doors, as well as on doors with reverse handing, offering flexibility in application. The installation instructions clearly delineate the setup for each door handing.
• Multiple Installation Types: The Model 51 supports three common installation methods:
  • Regular Arm Installation: The closer body is mounted on the pull side of the door, and the arm extends to the frame. This is a common and straightforward installation.
  • Top Jamb Mount: The closer body is mounted on the push side of the door frame, and the arm connects to the door. This is often used when there is insufficient space on the door for a regular arm installation or for aesthetic reasons.
  • Parallel Arm Installation: The closer body is mounted on the push side of the door, and the arm assembly is mounted parallel to the door frame. This installation type is often preferred for its aesthetics and to reduce the projection of the arm from the door.
• Optional Components: The closer can be enhanced with optional components such as a 50P Cover for aesthetic purposes and a 214 Plate, which is used in specific parallel arm installations.

Maintenance Features:

The 50 Series Door Closer is designed for durability and minimal maintenance, but certain considerations are important for its longevity and proper function:

• Hex Wrench Adjustment: All adjustments for closing speed, latch speed, and backcheck are made using a provided 1/8" hex wrench. This standardized tool simplifies maintenance and prevents unauthorized tampering.
• Valve Care: It is crucial to never force the adjustment valves out of the closer body, as this can damage the hydraulic system and lead to fluid leaks. Similarly, the backcheck valve should never be completely closed. These precautions ensure the integrity of the closer's internal mechanisms.
• Spring Power Adjustment Safety: When adjusting spring power, the door must be open. This ensures that there is no pressure on the spring during adjustment, preventing potential injury or damage to the closer.
• Fastener Compatibility: Installers are advised to always consult the door and frame manufacturer for fastener compatibility to ensure secure mounting and prevent damage to the door or frame. Proper reinforcement of the door and frame is also essential for long-term performance.
• Environmental Considerations: These door closers should not be installed on the exposed (weather) side of exterior doors. Exposure to harsh weather conditions can compromise the closer's performance and lifespan.
• Fire-Rated Opening Warning: A critical warning is provided regarding installation on fire-rated openings. Any retrofit or modification can impact the fire rating. Installers must consult a code specialist or local code official to ensure compliance with all applicable codes and ratings, emphasizing the importance of professional expertise for safety-critical applications.
• Warranty Information: The use of a power drill for adjustments will void the warranty, highlighting the need for careful manual adjustments to prevent damage to the delicate internal components.
• Regular Inspection: Although not explicitly detailed as a feature, the nature of door closers implies that regular inspection for proper function, fluid leaks, and secure mounting is good practice to ensure continued safe and effective operation.

In summary, the 50 Series Door Closer, Model 51, is a robust and adaptable device offering precise control over door closing, with features designed for ease of adjustment, versatile installation, and long-term reliability, all while emphasizing safety and compliance in its application.

Assa Abloy ACCENTRA 50 Series Specifications