Standard Scopes

ANSI/BHMA A156.19 Power Assist & Low Energy Power Operated Doors

ANSI/BHMA A156.19-2019 Revision of ANSI/BHMA A156.19-2013


1.1 Requirements in this Standard apply only to swing door operators. The operator types are power
assist, and low energy power operators, for pedestrian use, and some small vehicular use. It does not address
doors, finish or hardware. The activation of all doors described in this standard requires a knowing act.
Included are provisions intended to reduce the chance of user injury or entrapment. These products are
intended to improve accessibility.

1.2 Doors that require higher speeds, forces, shorter time delays, and activating sensing devices shall
comply with ANSI/BHMA A156.10 for Power Operated Pedestrian Doors and are not covered in A156.19.

1.3 This Standard does not attempt to assess any factors that exist with respect to custom design installations
which are not required to meet the requirements of this Standard.

1.4 Unless otherwise specified, all references to time delay, opening speed and forces in this standard, refer
to the operator in the power mode as opposed to the manual mode.

1.5 Required dimensions are expressed in US units first and the SI (metric) equivalents given in parentheses
are approximate. All values which do not carry specific tolerances or are not marked maximum or minimum
shall have the following tolerances: Linear dimensions shall be ± 1/16 in (1.6 mm). Pounds or pound force
shall be ± 5%. Angular measurements shall be ± 4 degrees. Voltage measurements shall be ±  5 percent.
Temperature measurements shall be ±  4 degrees F (± 2 degrees C).

1.6 Compliance with the requirements of this standard shall be accomplished through factory settings or
field adjustments as necessary.

1.7 Operators used on labeled fire door assemblies shall be listed or labeled by a nationally recognized
independent testing laboratory, and be subject to a periodic in-plant follow-up service. Consult the authority
having jurisdiction for the appropriate fire test requirements.

Previous Scope ANSI/BHMA A156.18 Materials and Finishes
Next Scope ANSI/BHMA A156.20 Strap and Tee Hinges, and Hasps

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