BHMA A156-19:2007 pdf download.AMERICAN NATIONAL STANDARD FOR POWER ASSIST AND LOW ENERGY POWER OPERATED DOORS
4.2 Opening Doors shall open from closed to back check, or 80 degrees which ever occurs first, in 3 seconds or longer as required in Table I. Backcheck shall not occur before 60 degrees opening. Total opening time to 90 degrees shall be as in Table II. If the door opens more than 90 degrees, it shall continue at the same rate as backcheck speed.
4.3 Time Delay When powered open, the door shall remain at the fully open position for not less than 5 seconds. Exception: When push-pull activation is used, the door shall remain at the fully open position for not less than 3 seconds.
4.4 Closing Doors shall close from 90 degrees to 10 degrees in 3 seconds or longer as required in Table 1. Doors shall close from 10 degrees to fully closed in not less than 1 .5 seconds.
4.5 Force and Kinetic Energy The force required to prevent a stopped door from opening or closing shall not exceed 15 lbf (67 N) measured 1 inch (25 mm) from the latch edge of the door at any point during opening or closing. The kinetic energy of a door in motion shall not exceed 1.25 lbf-ft (1.69 Nm). Table 1 provides minimum times for various widths and weights of doors for obtaining results complying with this kinetic energy. Doors shall open with a manual force not to exceed 15 lbf (67 N) to release a latch, if equipped with a latch, 30 lbf (133 N) to set the door in motion, and 15 lbf (67 N) to fully open the door. The forces shall be applied at 1 inch (25 mm) from the latch edge of the door.
5. CYCLE TESTS
5.1 Low Energy Power Operated, and Power Assist doors shall be cycle tested for 300,000 cycles.
5.2 Use the widest and heaviest test specimen recommended for use by the manufacturer. Narrower or lighter doors of the same configurations shall then be considered to meet the cycle test requirements.
5.3 Use the requirements in Table I to determine opening and closing times. Open the door to a 90±5 degree open position and close the door to the 0 ± 2 degree closed position using appropriate equipment.One opening and closing constitutes one cycle. In the case of Power Assist doors, use an actuator exerting an equivalent force equal to a 15 lbf (67 N) measured at 1 in (25 mm) from the latch edge of the door applied in the opening direction and allow the closing device furnished to close the door.
5.4 At the conclusion of the cycle test, the doors shall operate in accordance with requirements of Table 1, and the actual opening and closing time shall be within -10 % to +20 % of their respective values at the commencement of the test.BHMA A156-19 pdf download.