Corpus sync: neutrality remakes, note hygiene, datasheet relocation, transformer-split cross-refs
---
title: Automatic Entrance Doors
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When to use: Power-operated, full-energy automatic pedestrian entrance door
systems at commercial, institutional, retail, healthcare, and public building
− entries -- sliding (single-slide, bi-part, telescoping), full-energy automatic
+ entries — sliding (single-slide, bi-part, telescoping), full-energy automatic
swing, and folding assemblies, with their operators, activation and safety
sensors, guide rails, thresholds, framing, and integral glazing, for interior
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## This standard covers power-operated, full-energy automatic pedestrian entrance door assemblies, including sliding, swing, and folding configurations, their operators, activation and safety sensors, guide rails, thresholds, framing, and glazing integral to the entrance unit. {note}
−## Automatic entrances are specified primarily to satisfy three overlapping mandates: accessibility (the ADA Standards and ICC A117.1), egress (the International Building Code and, where adopted, NFPA 101), and the practical need to move heavy pedestrian traffic through a public building entry without a person handling a door leaf. Because a single assembly must satisfy all three at once -- and because a misconfiguration can become a life-safety deficiency at the building's primary exit -- the assembly, its controls, and its commissioning are specified together here rather than split across trades. {note}
+## Automatic entrances are specified primarily to satisfy three overlapping mandates: accessibility (the ADA Standards and ICC A117.1), egress (the International Building Code and, where adopted, NFPA 101), and the practical need to move heavy pedestrian traffic through a public building entry without a person handling a door leaf. Because a single assembly must satisfy all three at once — and because a misconfiguration can become a life-safety deficiency at the building's primary exit — the assembly, its controls, and its commissioning are specified together here rather than split across trades. {note}
## The work of this section includes complete automatic entrance assemblies: door leaves, operators, controls, activation sensors, safety sensors, guide rails, thresholds, weatherstripping, integral framing, and integral glazing, furnished and installed ready for use. {note}
−## The 80% configuration this standard defaults to is a surface-mounted DC belt-drive overhead operator in a bi-parting sliding arrangement, with a microwave presence activation sensor and an infrared safety beam, a 36 in. (914 mm) clear opening, standard duty cycle, 120V AC supply, and UL 325 listing. {note}
+## The configuration this standard defaults to is a surface-mounted DC belt-drive overhead operator in a bi-parting sliding arrangement, with a microwave presence activation sensor and an infrared safety beam, a 36 in. (914 mm) clear opening, standard duty cycle, 120V AC supply, and UL 325 listing. {note}
## Datasheet defaults throughout follow this case. They are starting points the Engineer of Record adjusts per project, not a recommendation to deviate from for safety-driven entries such as hospitals. {note}
## Manual swing, pivot, and sliding doors without power operators are specified under [[sync/doors-frames-and-hardware]] and are excluded from this section. {note}
−## Low-energy power-assist and low-energy power-operated swing doors governed by ANSI/BHMA A156.19 -- push-and-go and push-plate-only operators with their distinct opening speeds, timing, and kinetic-energy limits -- are a separate product category and are excluded; A156.19 is referenced here only to define the boundary. {note}
+## Low-energy power-assist and low-energy power-operated swing doors governed by ANSI/BHMA A156.19 — push-and-go and push-plate-only operators with their distinct opening speeds, timing, and kinetic-energy limits — are a separate product category and are excluded; A156.19 is referenced here only to define the boundary. {note}
## Revolving pedestrian door entrances, whether manual or power, are governed by ANSI/BHMA A156.27 and are outside the scope of this standard; they are covered under a separate revolving-door section. {note}
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### Door panel speed shall not exceed the limit corresponding to the A156.10 kinetic-energy ceiling and shall be field-adjusted to the operating speed scheduled for the entrance.
−### At healthcare and other high-vulnerability entries, the operating speed shall be reduced from the commercial default to suit the expected user population.
−
−### A156.10 sets a ceiling, not a target; hospital, assisted-living, and pediatric entries are routinely commissioned slower than the maximum so that frail or distracted users are not struck by a closing panel. {note}
−
```datasheet
label: Field operating speed (sliding, each direction)
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```
+### At healthcare and other high-vulnerability entries, the operating speed shall be reduced from the commercial default to suit the expected user population.
+
+### A156.10 sets a ceiling, not a target; hospital, assisted-living, and pediatric entries are routinely commissioned slower than the maximum so that frail or distracted users are not struck by a closing panel. {note}
+
+### The hold-open (dwell) time for each automatic entrance shall be specified, and reduced at high-vulnerability entries so a closing panel is less likely to strike a slow user.
+
```datasheet
label: Hold-open (dwell) time
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### The operator shall be rated for the traffic volume of the entrance, with standard commercial operators rated for not less than 1,000,000 cycles and heavy-duty operators provided where the schedule designates high-traffic service.
−### Heavy-duty operators shall be provided at hospital, airport, transit, and other entries where sustained high cycle counts would prematurely wear a standard-duty operator.
−
−### Standard-duty operators are rated for general commercial use; sustained high-traffic service at hospitals, airports, and transit hubs demands a heavy-duty rating to avoid premature wear. {note}
−
```datasheet
label: Operator duty rating
type: radio
options:
− - Standard commercial (>= 1,000,000 cycles)
+ - Standard commercial (≥ 1,000,000 cycles)
- Heavy duty (high-traffic: hospital, airport, transit)
−default: Standard commercial (>= 1,000,000 cycles)
+default: Standard commercial (≥ 1,000,000 cycles)
```
+### Heavy-duty operators shall be provided at hospital, airport, transit, and other entries where sustained high cycle counts would prematurely wear a standard-duty operator.
+
+### Standard-duty operators are rated for general commercial use; sustained high-traffic service at hospitals, airports, and transit hubs demands a heavy-duty rating to avoid premature wear. {note}
+
# Door Type and Configuration {toc}
## Door type and configuration shall be selected to suit the rough opening, the required clear width, and the available header and ceiling clearance.
+```datasheet
+label: Door type
+type: select
+options:
+ - Bi-parting sliding (two panels part to center)
+ - Single-slide sliding (one panel to one side)
+ - Telescoping sliding (2 or 3 panels per side)
+ - Full-energy automatic swing (single)
+ - Full-energy automatic swing (pair)
+ - Automatic folding
+default: Bi-parting sliding (two panels part to center)
+```
+
## The most common commercial entry is a bi-parting slider, in which two panels part to the center; a single-slide moves one panel to one side; telescoping arrangements stack two or three panels per side to deliver a wide clear opening in a constrained rough opening; full-energy swing and folding configurations serve entries where a sliding pocket is not feasible. {note}
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## Concealed-header operators typically need 8 to 10 in. (200 to 250 mm) of header depth above the rough opening; verify ceiling and soffit clearance before selecting a concealed mounting, because the conflict is otherwise discovered only at submittal. {note}
+## The operator drive type shall be specified, with header depth and ceiling clearance verified against a concealed mounting before it is selected.
+
```datasheet
−label: Door type
−type: select
+label: Operator drive type
+type: radio
options:
− - Bi-parting sliding (two panels part to center)
− - Single-slide sliding (one panel to one side)
− - Telescoping sliding (2 or 3 panels per side)
− - Full-energy automatic swing (single)
− - Full-energy automatic swing (pair)
− - Automatic folding
−default: Bi-parting sliding (two panels part to center)
+ - DC permanent-magnet belt drive
+ - Electromechanical gear drive
+default: DC permanent-magnet belt drive
```
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```
−```datasheet
−label: Operator drive type
−type: radio
−options:
− - DC permanent-magnet belt drive
− - Electromechanical gear drive
−default: DC permanent-magnet belt drive
−```
−
# Activation and Safety Sensors {toc}
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### The automatic entrance shall be provided with a safety sensor system that holds the door open while a person or object is within the door's path, per ANSI/BHMA A156.10.
−### Closing-edge protection is most commonly an infrared safety beam or an above-door radar safety sensor; a safety mat is used where floor-level presence detection is preferred. The safety system is independent of the activation system, and both must be verified at commissioning. {note}
−
−### A presence safety sensor shall hold the door open whenever a person or object is detected within the closing path.
−
−### The safety detection zones shall be field-verified and documented at commissioning, and coverage shall not be reduced below the A156.10 minimum.
−
−### Sensor coverage that is specified but never verified at commissioning is a leading source of accessibility complaints and warranty claims; field verification is therefore mandatory, not optional. {note}
−
```datasheet
label: Safety sensor type
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```
+### Closing-edge protection is most commonly an infrared safety beam or an above-door radar safety sensor; a safety mat is used where floor-level presence detection is preferred. The safety system is independent of the activation system, and both must be verified at commissioning. {note}
+
+### A presence safety sensor shall hold the door open whenever a person or object is detected within the closing path.
+
+### The safety detection zones shall be field-verified and documented at commissioning, and coverage shall not be reduced below the A156.10 minimum.
+
+### Sensor coverage that is specified but never verified at commissioning is a leading source of accessibility complaints and warranty claims; field verification is therefore mandatory, not optional. {note}
+
# Access Control Integration {toc}
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### Where the assembly uses insulating glass for thermal performance, or impact-resistant glass at a coastal entry, the U-factor, solar heat gain coefficient, and impact rating must be stated somewhere; this standard pins the glass type, and [[sync/glazing]] governs the glazing performance. {note}
−### Glazing in door leaves and adjacent fixed lites shall be safety glazing -- tempered or laminated -- conforming to the hazardous-location requirements of the adopted building code.
+### Glazing in door leaves and adjacent fixed lites shall be safety glazing — tempered or laminated — conforming to the hazardous-location requirements of the adopted building code.
### Insulating glass units at exterior entrances shall meet the project thermal performance scheduled under [[sync/glazing]].
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- Spare safety sensor (one per type)
```