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The NATIONAL DOOR CONTROLS 101-rh is a 3/4-inch offset concealed closer conversion kit designed for right-hand door applications. This kit allows technicians to retrofit existing concealed floor checks to surface-mounted door closers, eliminating the need for full floor hardware replacement. It neutralizes the 3/4-inch offset inherent in compatible floor check units and converts the door to accept a standard surface-mounted closer. The kit is suited for commercial door hardware service work performed by licensed door hardware installers and general contractors working on retrofit projects.
This kit is used in commercial building applications where concealed floor checks are being phased out or replaced with surface-mounted door closers. It is particularly applicable in retrofit and renovation scenarios where the existing floor hardware presents a 3/4-inch offset. Compatible systems include Rixson, Doromatic, and Pittco concealed floor check units. Right-hand door configuration is required for this specific kit.
Compatible with Rixson, Doromatic, and Pittco concealed floor check systems featuring a 3/4-inch offset. Intended for right-hand door configurations only.
Installation is typically performed by a licensed door hardware technician or commercial door installer. Before beginning work, ensure the door is secured in an open position and all associated closer or check hardware is depressurized or mechanically relieved per the manufacturer's procedure. Verify door hand orientation prior to installation, as this kit is specific to right-hand applications. Consult local building codes for commercial door hardware requirements applicable to the installation site.
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