DOOR CLOSERS & CONTROLS
Choosing the Right Closer The type , location , and use of the door has been established , as has the type of door closer . But can ’ t different door closers do different things ? They all close a door but what else can they do ? It ’ s time to talk function .
• Power Size - Fixed size per unit e . g . EN 3 , or closers with a range e . g . EN 2-5 . Adjustment is by template ( moving the closer to a different position on the door ) or an adjustment on the unit , depending on the model .
• Adjustable Closing Speed - Determines how quickly the door closes after being opened . This feature allows a longer closing time to enable slower-moving foot traffic to pass through safely .
• Adjustable Latching Speed - Allows adjustment of the closing speed over the final few degrees of closing . This is separate to the main closing speed adjustment . They can be set to either speed up or slow down for these final few degrees .
• Backcheck - When excessive force is used to open a door , backcheck function dampens the opening action with equal resistance . It prevents the door from being suddenly thrown open either by people or the wind which can prevent damage to the door , the frame , door hardware and property .
• Delayed Action - Allows the door to remain open for a specified period . It slows the speed of closing in the upper end of the closing cycle . The door closes at an adjustable speed which allows safe passage for wheelchair users or the movement of bulky items .
• Hold Open - Mechanical options or electromagnetic hold open for use on fire rated doors . Typically seen in high-traffic areas such as corridors . A door is held open at a set degree of opening . When the fire alarm is activated , the door will automatically close .
• Swing Free - Allows the door to act as if no closer is fitted . Once triggered by the fire alarm it will pull the door closed from any position . Swing free is commonly used on bedroom doors in care homes where a low door opening resistance is required .
It might seem like a lot but don ’ t worry , it ’ s not a choice of one – many door closers feature multiple functions within one model . Check the technical specifications of a unit for specifics . You ’ ll find they can incorporate all common adjustments and have backcheck or delayed action .
A Side Quest - Installation and Maintenance
As important as selecting the right unit is the correct installation of a door closer . An improperly fitted product can lead to safety issues , increased wear and tear , and potentially costly repairs . Regular maintenance and checks ensure the closer continues to function correctly , especially on fire doors where performance is crucial for safety .
Door closers are supplied with model-specific fitting instructions , some with fitting templates . At Door Controls Direct , we often find that issues are installation-based rather than due to a product fault . Closers can be fitted with basic tools , but they need to be installed with precision .
Common issues of slamming , or the door not closing fully because the closer can ’ t override a latch bolt are solved with initial adjustments at the point of installation , and regular adjustments as part of the maintenance routine .
Closing Thoughts The world of door closers is vast and varied . With the right knowledge , selecting the perfect closer doesn ’ t have to be a challenge . By considering the door ’ s specifications , traffic volume , compliance needs , and any potential aesthetic requirements , you can make an informed decision .
Find that balance between functionality , safety , and design . And don ’ t forget budget . Never forget the budget .
Whether you ’ re a locksmith , maintenance contractor , or an in-house facilities manager , understanding the nuances of door closers is essential . The right choice and installation ensure the safety , security , and smooth operation of doors within any building , making it a key component of overall building management and passive fire safety strategy .
So , you ’ re all set to venture into the world of controlled door closing devices and come out the other side with a compliant , fit-for-purpose unit , ready to be installed on your project .
www . doorcontrolsdirect . co . uk
MARCH 2024
33
Issue Takeover locksmithjournal . co . uk