BHMA A156-15:2015 pdf download.RELEASE DEVICES - CLOSER HOLDER, ELECTROMAGNETIC AND ELECTROMECHANICAL
1.SCOPE
1.1 This Standard establishes requirements for door closers combined with hold-open devices or free-swinging door closers combined with releasing devices and includes performance tests covering operational, cyclical and finish criteria.
1.2 Tests described in this Standard are performed under laboratory conditions. In actual usage, results vary because of installation, maintenance and environmental conditions.
1.3 Instructions shall be included with the product requiring the end users to, (1) test the product after installation in accordance with the manufacturer's criteria, (2) periodically test the products in conjunction with the fire alarm system and, (3) maintain the door closing system in working order.
4.1.1 Weight The test door weight shall be 100 lbs (45 kg). Center of gravity of the weighted door shall be 18 in (457 mm) from the pivot center of the door. Door weight is for test purposes only.
4.1.2 Mounting Doors shall be hung on ball bearing hinges, accurately aligned with pins vertical or on offset pivots or center pivots, if required by the door closer. Force required to overcome friction or out-of-balance condition shall be a 1/2 lbf (2.2 N) or less throughout the test measured perpendicular to the face of the door at a point 30 in (762 mm) from pivot center. Top jamb mounting shall be2 in±1/8 in(51±3 mm) reveal. Mount closer in accordance with manufacturer's instruction for 90 degrees of door opening.
4.2 Door Opening Template In preparation for the testing, provide a template or floor markings along the swing of the test door at the following intervals: 135, 115, 90, 70, and 45 degrees. For the applicable tests, the door will be opened to the line being parallel to the leading edge of the door. In addition, for tests which require an opening to a specified distance, mark lines at 1/2, 2, 3, 4 and 12 inches perpendicular to the door in the closed position, and 30 in. (762 mm) from the pivot center of the door.
4.3 Actuating Means for mechanically opening the door to the 90 degree position (±5 degrees) and releasing shall be provided for the cycling test.
4.4 Applied Forces and Force Readings All applied forces or force readings shall be made perpendicular to the face of the door at a point 30 in (762 mm) from the pivot center of the door. Force applications and readings shall be applied by a standard mechanical force gauge with a combined calibration and reading accuracy within 5%.BHMA A156-15 pdf download.