BHMA A156-4:2019 pdf download.STANDARD FOR DOOR CONTROLS - CLOSERS
3.1.2 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 thana 1/4 lbf. (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.
3.3 Door Opening Templates and Floor Marking In preparation for the testing, attach a pointer to bottom the leading edge of door 30”from pivot center, and provide a template (Figure 4) or floor markings along the swing of the pointer mounted on 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 degree where the pointer intersects the required location. In addition, for tests which require an opening to a specified distance, mark lines (Figure 5) 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.
3.4 Installation The door closer shall be installed in accordance with the manufacturer's written installation instructions.
3.5 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 force gauge with a combined calibration and reading accuracy within 5%.
3.6 Overload Abuse Test Weights In closers with adjustable spring power, set the closing force to the closest increment within the values specified for the closer size in Table 1.
4.2.2 Concealed-in-Floor or Overhead Concealed Closers, Optional (PT8A)
Setup Mount door closer per manufacturer's instructions. Completely close the general speed regulating valve on the closer.
Test Open the door to maximum opening and release. The point at which the closing motion of the door is essentially stopped (a slow creeping motion after deceleration shall be disregarded) shall be not more than 7° from release point to the closed position.BHMA A156-4 pdf download.