20221204 BQS554 ASG 1

BQS554 Building Services II 2022783051 (AAP2244A)

AUTOMATIC DOORS

Imagine that you have just completed checking out at a store.

Your purchases were neatly packaged by the cashier as you
made your way to the exit, your hands completely full.

Nothing occurs as you approach the enormous glass door.

Why didn't the door just open for you, I hear you ask?
Automatic doors are so common that you probably can’t

imagine a world where you have to physically open the door
at the grocery store. Developed over the last several decades,

automatic doors have empowered us to create hands-free AUTOMATIC SLIDING DOOR
entrances and exits.

If you develop, own, or manage multifamily or commercial buildings, you’re probably always

looking for new ways to enhance your property. Automatic doors offer improved safety, added
convenience, and a seamless, hands-free entry experience to tenants, visitors, and building staff.

HOW DO AUTOMATIC DOORS WORKS?
Automatic doors require a sensor that detects w
hen the door needs to open. When the sensor

detects a cue, it then sends a signal to the door operating mechanism. After receiving that signal,
the mechanism opens the door.

Three of the most common types of automatic door sensors include:

Pressure sensors
Introduced in the 1960s, pressure sensors use
changes in weight or pressure to detect when the
door needs to open. Pressure sensors are usually
installed as mats or pads on the ground. When a
person approaches the door and steps on the mat, the
door opens because the pressure sensor detected a
change in pressure.

Motion detection and optical sensors
Nowadays, most automatic doors
operate with motion-detecting sensors.
The majority of motion detectors use
either microwave pulses or passive
infrared (PIR) sensors to detect
movement.

Microwave beam motion detectors
send out pulses of microwaves that
measure the reflections of moving
objects. In contrast, passive infrared
sensors measure temperature changes
to detect body heat.

Sensors with microwave technology are usually more expensive than infrared sensors because
they can cover a larger area. However, they are also at risk of electrical interference.

IZZAT ISKANDAR KAMARUDDIN

BQS554 Building Services II 2022783051 (AAP2244A)

An access control or video intercom system
Automatic doors can also detect when to operate through an access control or video intercom
system.

Rather than sensing motion or pressure, the door relies on a signal from an access control
system to open. That signal can come from a keycard, a fob, a smartphone, or any other device
that has been programmed with the access control system.

Automatic doors controlled by cloud-based access control systems or smart video intercoms are
ideal for multifamily buildings and commercial properties that only need to grant entry to
authorized people. Most multifamily and commercial buildings need an access control system or
video intercom for both fire and safety regulations. In addition, access control systems and smart
video intercoms improve the resident experience.

Additionally, when the access control system or video intercom AisUTcOoMnnAeTcICteSdLItDoINtGheDOcOloRud,
building staff enjoy the added convenience of managing property access permissions remotely
from a web browser. As a result, staff members don’t have to physically visit the building to
update their system.

HOW DOES A SENSOR MAKE THE DOOR OPEN?

Once a sensor has detected that someone needs to enter the building, it then sends a signal to the
door opening mechanism. The door opening mechanism is powered by an electric motor, which
opens the door according to the type of door you have.

SLIDING DOOR SWINGING DOOR REVOLVING DOOR

BENEFITS OF AUTOMATIC DOORS
FOR BUILDINGS

it is established how automatic doors work, but now let’s
understand why that matters. Why should you care about
automatic doors, and why are they worth the investment?

Some of the benefits of automatic doors include:

FOLDING DOOR Energy savings: Automatic doors can help preserve
conditioned air and therefore reduce your building’s heating
Sliding doors: Ideal for two- and cooling costs.
way traffic, automatic sliding
doors may be hung from Touchless entry: With an automated door, no one has to
overhead tracks or mounted touch shared surfaces like door handles. This helps prevent
with tracks and rollers. the spread of germs.
Revolving doors: Ideal for
high-traffic areas, automatic Convenience: People always appreciate the convenience of
revolving doors enable hands-free building entry, especially when carrying grocery
simultaneous exit and entry. bags, wrangling their kids, or bringing home a new piece of
Folding doors: Ideal for heavy furniture.
small entrances where space
is a concern, automatic
folding doors fold up onto
themselves to create a
passageway.

IZZAT ISKANDAR KAMARUDDIN

BQS554 Building Services II 2022783051 (AAP2244A)

ABOUT SENSOR

Automatic doors are equipped with two types of sensors, an activation sensor and a support
sensor.

Activation sensor
Different types of sensors such as infrared sensor and activation switches are available. The
appropriate activation sensor shall be selected according to the uses and environment.

Safety sensor
Safety sensors are used to prevent the door panels from hitting an object or person near the door
or on the door track.

IZZAT ISKANDAR KAMARUDDIN

BQS554 Building Services II 2022783051 (AAP2244A)

HOW DO AUTOMATIC DOORS ENABLE TOUCHLESS
ENTRY?



Automatic doors enable touchless entry by allowing people to pass
through the entryway without touching the door. Apartment
residents appreciate touchless entry because it eliminates the need
to touch high-risk surfaces, making your property safer for all.

If you want to implement touchless entry at a multifamily building
or a commercial property with restricted access, you’ll need an
automatic door and an access control system or video intercom.

DETAILS OF SLIDING DOOR

IZZAT ISKANDAR KAMARUDDIN