Seven door mass /size grades and related door closer power sizes are identified according to BESEN 1154 .where a door closer provides a range size ,both the minimum and the maximum sizes should be identified .
Door Closer Power Size
Test door mass kg
Recommended door leaf width Max .mm
NOTE The door width given are for standard installations .in the case of unusually high or heavy doors.windy or draught conditions, or special installations ,a larger power size of door closer shoulder be used .
FIRE DOORS We referred above to fire door assemblies which will require self closing devices.BE EN 1154 makes recommendation as to the closing forces consider necessary for such devices fitted to fired doors.
A The door closer ,when installed in accordance with the manufacturer’s installation instructions ,shall be capable of closing the test door from any angle to which it may be opened . B Due to their low closing comments,door closers size 1 and 2 are not considered suitable for use on fire/smoke door assemblies .Door closers with adjustable closing force should be capable of adjustment to at least power size 3.
C The door closer should not include a hold open device unless it is an electrically powere device in accordance with EN 1155
D Control regulators should be either concealed or operable only by means of a tool .
E The design of the a door closer should be such that it is not possible to inhibit its closing action in any way without the use of a tool. F Any incorporated delayed action function should be capable of adjustment to less than 25 seconds between the door closing angles of 120°and the end of the delay zone .
G The door closer representative of its model should have been incorporated in a door assembly that has satisfied the appropriate criteria of a fire test . The test should have been on a full sized assembly in accordance with EN 1634-1.