Although not required by building codes, low energy door operators are an upgrade which adds safety and convenience to an opening.
Automatic door operators are divided into two categories: Full Energy Door Operators and Low Energy Door Operators. Although not required by building codes, low energy operators and how they are installed should comply with ANSI 156.19 which is the American National Standard For Power Assist and Low Energy Power Operated Doors. Full Energy Operators guidelines are ANSI 156.10 American National Standard for Power Operated Pedestrian Doors. These standards apply to swinging doors.
Standards such as ANSI 156.19 are consensus approved guidelines for manufacturers, installers and users of these devices. Standards which are guidelines should not be confused with Codes, which are laws.
The Standard addresses issues such as reliability, performance characteristics, recommended site conditions, and installation best practices which are intended to ensure consistency of products and operation of these types of systems.
ANSI Standards are revised on a regular basis, and AAADM certified inspectors and installers must undergo in-service training, and recertification to ensure they stay current with the latest editions of the guidelines.
Since door operators are electrically powered, mount on doors, and perform control functions of doors, there deployment is also covered by Codes such as:
- The NFPA 101: the Life Safety Code,
- The NFPA 80: Standard for Fire Doors and Other Opening Protectives,
- The NEC: The National Electric Code, and
- The ADAAG: Americans With Disabilities Act Accessibility Guidelines.
In practice these codes and guidelines dovetail well and do not present conflicts to the system designer, but compliance with one does not all ensure compliance with the others, so a general working knowledge of all of them is highly recommended.
In some cases, a door operator may help achieve compliance with a code even though the installation of the door operator was not a direct code requirement. An example of this would be on a fire door where NFPA 80 requires the door be closed and latched at all times, but site conditions make it not possible to achieve with the use of a door closer because in order to get the door to close against stack pressure or outside weather conditions, the closer must overcompensate one setting to achieve another. In a situation such as this, a low energy door operator may be the answer.
Programming Vestibule Door Operators For Sequential Operation
A common request is for vestibule installations where both inner and outer doors are equipped with automatic operators that they operate sequentially. The usual arrangement of knowing act handicapped buttons is for one actuator on the exterior of the building for entry, one actuator on the interior of the building for egress, and a pair of actuators inside the vestibule.
If actuators are used with RF transmitters and receivers, programming is easy, as receivers used for door operators are typically capable of providing an instant output or a delayed output.
If wired actuators or a combination of wired and hard-wired actuators are required, then an interface relay will be necessary.
For example if Touchless Actuators are desired for the primary entry and egress, then, since power is required to these units, wireless inside the actuator would not work.
Sometimes the spec will require hard-wired actuators. Sometimes there will be wire runs for card readers or intercoms, so hard-wiring makes sense.
If the operator control system is wired, a module such as the BEASENSOR BR-3 can be used.
The BR3 programmable three-Relay Logic Module contains logic for multiple applications including simple timing, door mounted sensor inhibiting and advanced relay sequencing allowing the technician to carry only one module.