C-TEC BF375PEK Double Gang Automatic Door Release System
C-TEC BF375PEK Double Gang Automatic Door Release SystemAn ancillary function of many fire alarm systems is the automatic closure of fire doors in the event of a fire. On larger systems however it is not always practical to globally shut all of a buildings fire doors particularly if the fire is consigned to a distant secure area. With this in mind in addition to demanding the installation of a standard fire alarm system an increasing number of specifications are also calling for independent self-contained door release systems sited locally to each set of fire doors. C-TECs BF375PEK is one such system.The system includes a compact 24V 250mA double gang power supply featuring an on-board detector circuit two optical smoke detectors and bases and one electromagnetic door retainer. In normal conditions the power supply energizes the door retainer to hold the fire door open. On each side of the door a smoke detector is installed.Should one or more of the detectors go into alarm the door will close. For added protection depending on how the system is wired the door will also close if one or both of the smoke detectors is removed from its base if there is an open or short circuit if the mains fails if the power supplys on-board manual release button is pressed or if an optional external manual release button is activated Although only one electromagnetic door retainer is supplied with the BF375PEK additional magnets can be connected. In most instances however only two magnets will be required to handle one setpair of fire doors.The Kit Includes1 No. C-Tec BF375PE Double Gang 24V 250mA Door Release PSU2 No. Apollo 55000-317 Conventional Optical Smoke Detectors Bases1 No. 24V DC Wall Mounted Door Detent Keeper Plate1 No. NCP-10 Flush Backbox
