Lockwood FD484 for Double Doors with Coordinator and Electromechanical Hold-Open Device The FD484 is designed for applications such as hotels and hospital corridors, where both door leafs are usually kept open. The FD484 is designed for double doors with hinge distance 1100-2100 mm. In normal day use both doors are open. The hold open angle for inactive door can be adjusted 70°- 130 °. The hold open device keeps the inactive door open whereas the coordinator keeps the active door open. The maximum hold angle for the active door is 150°. When the power is switched off, i.e. when the smoke detectors react to smoke, the inactive door closes first and when it is almost closed, the active door starts to close. The Hold open device includes adjustable hold open force. Current consumption 60mA (24 VDC). Major Features of the FD484 DesignCompact modern design to suit double door installations. Fire RatedThe Lockwood FD484 Concealed Door Control System has been successfully fire tested up to 2 hours on fire door assemblies in accordance with Australian Standard AS1905.1:2005 - Part 1: Fire Resistant Doorsets. Flexibility In InstallationOne unit suits both push side or pull side Door Sizes Double door applications minimum 1100mm, maximum 2100mm Minimum door thickness 40mm Hold-Open Device Easy to install with adjustable angles (90° to 120°) Hold-open strength can be adjusted during the installation Opening AnglesMaximum opening angle 120° Electrical Specifications24VDV ± 15%. Low consumption:max current 60mA per hold-open device Power SizeAdjustable EN 1 - 4 Downloads Lockwood Fire Door Closing Systems Catalogue.pdf (.pdf, 1.2 MB) Close Part numbers Trade Pack Description Part Number Silver FD484 Close Where to buy? Find your local Lockwood stockist. Lockwood 2616CO Mechanical CoordinatorCoordinator for Double Doors Lockwood 2616EMC Electromechanical Hold-Open DeviceHold-Open Device Single Doors. Lockwood 2616EMCD Electromechanical Hold-Open DeviceDouble doors.