ANSI BHMA-A156-4:2000 pdf free download – AMERICAN NATIONA STANDARD FOR DOOR HONTROL SCLOSERS
4.1.2. Mounting: Doors shall be hung on hinges, accurately aligned with vertical pins or on offset or center pivots, if required by the door closer. Force required to overcome friction or out of balance condition shall be a 1/4 lbf. (1.1 N) or less throughout the test measured perpendicular to the face of the door at a point 30 in (762 mm) from pivot center. Forces required to overcome friction or out of balance conditions are permitted to be greater than a 1/4 Ibf. (1.1 N) if acceptable to closer manufacturer. Top jamb mounting shall be 2 in+ 1/8 in (51 + 3 mm) reveal. Any force due to hinge friction shall not be used to adjust test data.
4.1.3 Actuating: Means for mechanically opening the door to the 90 degree position ( 5 degrees) and releasing shall be provided for the cycling test.
4.2 The Door Closer
4.2.1 A manufacturer’s stock door closer shall be used for testing. For surface mounted and concealed in door closers, a size IV closer shall be used for qualification purposes. For floor and overhead concealed closers, a size II or IV closer shall be used for qualification purposes. The manufacturer shall certify that the balance of the line also meets the performance requirements.
4.2.2 If door closer bodies of the same type are of substantially the same construction, the cycle test (6.6) shall be required only for one arm application (ie. hinge side, parallel arm, track arm, bracket mounting or top, jamb mounting) under tests PT 1, PT 2, and PT 3. All other tests (6.1 through 6.7) as applicable, shall be required for all arm applications.
4.2.3 Only one door closer shall be used for all three phases of the test series, and shall be run consecutively. (5.1, 5.2, and 5.3).
4.2.4 The door closer shall be installed in accordance with the manufacturer’s instructions for 90 degrees of door opening. (Except in the case of 3.5.1, after the control test, closer shall be remounted for 90 degrees of door opening)
4.3 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 as manufactured by Hunter Spring Co. (L-20 Device), John Chatillon & Sons (DPP Device) or a comparable device, with a combined calibration and reading accuracy within 5%.
5.1.12 Overload Abuse Test. Adjust the closing time from 90 degrees open to 10 seconds. Hold the test door open at 90 degrees with the cable and weights attached according to 5.1.12.1 and release the door allowing the weights to fall. The flling test weight is arrested when the door is 15 degrees from the closed position. The door continues to close under its own momentum until it is arrested by the energy absorbing stop at 5 degrees or the frame at 0 degrees, or in the case of double action closers, until it stops of its own accord. For PT 1 closers run 10 cycles. For PT 2 closers run 5 cycles and for PT 3 closers run 0 cycles. Test door weights shall be as described in 4.1.1. (6.17)