ANSI BHMA A156.15:2001 pdf download.RELEASE DEVICES – CLOSER HOLDER, ELECTROMAGNETIC AND ELECTROMECHANICAL.
1.1 ANSI BHMA A156.15 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.
2. DEFINITIONS
2.1 Adjustable Backcheck: A cushioning feature of a door closer becoming effective between 60 and 85 degrees of door opening.
2.2 Closer Holder Release Device: A floor, door or header mounted closing device connected with separate or integral releasing and fire or smoke detecting devices.
2.3 Electro-Magnetic or Electro-Mechanical Release Device: A wall, floor or door mounted appliance that releases doors from an open position for simultaneous closing upon signal from a smoke detector or other source.
2.4 Free Swinging Release: A function where the opening and closing control of a door closer is dc-energized until a signal is received from a smoke detector or other source when the closer then performs its normal function and closes the door.
2.5 Hold-Open: In this Standard, a device used in connection with a door closer holding the door in an open
position against the closing force of the closer.
2.6 Multiple-Point Hold-Open: A hold-open device holding the door in more than one hold-open position
without manual adjustment. (Consult manufacturer’s catalogs for ranges of hold-open points available.)
2.7 Single-Point Hold-Open: A hold-open device holding the door open in one selective position.
3. GENERAL
3.1 These products shall allow swinging doors to close upon receiving a signal in fire or smoke emergencies.
3.2 Upon activation by a signal to the hold-open or free swinging release device, the door shall become self- closing.
3.3 These products shall have been tested and listed for use on fire door assemblies by a Nationally Recognized
Testing Laboratory (NRTL) and shall be under a follow-up in-plant inspection service.
3.4 Electrical wiring of these products shall be in accordance with the National Electrical Code (ANSIINFPA 70)
for the appropriate class of circuit.
3.5 Values. Required values in this Standard are expressed in U.S. units. SI (metric) unit equivalents are approximate. All values which do not carry specific tolerances or are not marked maximum or minimum shall have the following tolerances: Linear dimension shall be ± 1/16 in (1.6 mm). Pounds or pound force shall be ± 2 percent. Degrees of opening shall be ± 2 degrees.ANSI BHMA A156.15 pdf download.