Technical term overview

Access control (Zuko)

Access control (Zuko) means that for security or safety reasons, only authorised persons are permitted to enter a building. Access control systems can be used in order to verify authorisations.

Access control system

An access control system encompasses various measures used to control access, e.g., structural, organisational or personnel measures. Modern access control systems are increasingly making use of biometric data and they are linked to intrusion alarm systems.

Activation devices

Activation devices are components for controlling automatic doors, and depending on the setting, they activate either the automatic opening or closing of the door.

Active leaf

Synonyms: moving, main leaf

In the case of door systems with multiple leaves, the leaf that is opened first and closed last is referred to as the active leaf (also: moving, main leaf). This leaf generally also contains the lock.

Air intake systems

Air intake systems serve to channel fresh air from outside into the interior of a building.

All-glass system

An all-glass system (GGS) refers to constructions where a door, a fixed panel or a fanlight - each comprised of a single pane of glass - only has a frame at the top or the bottom but not at the sides.

Angled strike plate

The angled strike plate is mainly used in wood frames.

Automatic door

Synonym: automatically activated door

Automatic doors are doors equipped with an automatic drive that opens and closes them.

Delayed closing action

Delayed closing is a function that can be configured on a door closer. It serves to hydraulically dampen the closing speed and to reduce it near the end of the closing process.

Direct opener

Direct opener is a general term for various types of drives that are used to open windows. The drives are installed on the main or the secondary closing edge of the window so that the drive motion is applied directly across the opening width. The windows are said to be ‘exposed’ (opened).

Door closer

A door closer is a piece of equipment that ensures that having been opened, the door is closed again, automatically and safely.

Door damper

A door damper is a piece of equipment that serves to decelerate the closing movement of a door.

Door drive

Door drives are motors that are used to automatically move swing and sliding doors.

Door leaf

Synonym: Door leaf

The door leaf is the moving part of a door.

Door leaf installation

Synonym: Leaf installation

In a door leaf installation, the door closer is attached to the door leaf and the guide rail or the link arm is attached to the door frame.

Door technology

At GEZE, the product area of door technology includes door closer systems, sliding fitting systems, GEZE ActiveStop and manual sliding wall systems.

Double-action door

Double-action doors are self-closing doors that swing in both directions within their frame and open at least 90°.

Hinge

Synonym: door hinge, door stop

The hinge is the part of the door that connects the leaf to the frame.

Hinge side

The hinge side of a door is the side of the door where the door fittings are mounted and visible.

Hold-open magnet

Synonyms: hold-open magnet, electrical hold-open magnet

Hold-open magnets are hold-open devices designed to keep fire protection doors open. They are not integrated into the guide rail. They are mounted on the door leaf. There is a magnetic attraction between them and the magnetic counter plate, which allows the door to be held open.

Holding magnet

A holding magnet is a component that holds fire protection doors in emergency exit systems closed.

Hold-open system

A hold-open system refers to equipment used in the event of a fire, which serves to shut fire protection closers that are otherwise held open to facilitate accessibility. In the event of a fire, the function of the door closer is deactivated in a controlled manner and the automatic closing function of the fire protection closer is triggered. A hold-open system is comprised of at last one trigger mechanism, one fire detector, one hold-open device and one power supply.

Hold-open unit

Synonym: Hold-open device

A hold-open device is one component of the hold-open system. This device enables a self-closing fire/smoke protection door to remain open either at a defined or at a selected angle until it is electrically triggered.

Indoor climate control

Synonym: Indoor climate regulation

Indoor climate regulation is the option of intelligently controlling the ventilation in a building. Depending on the temperature, humidity and air quality, windows are automatically opened or closed in accordance with pre-defined ventilation scenarios. Indoor climate regulation can also be used in connection with an RWA control panel so that ventilation and smoke extraction are combined. In the event of a fire, the RWA control panel takes over and moves the windows into the desired secure position.

Integrated door closing sequence control

The integrated closing sequence control (ISM) ensures the correct closing sequence for double-leaf doors. The active leaf remains in its waiting position while the passive leaf closes. The active leaf is then released according to the closing sequence, allowing it to also close.

Integrated door closer

Integrated door closers are installed directly into the door leaf, meaning that the guide rail is only visible when the door is being opened.

Integrated all-glass system

Synonyms: Integrated profile all-glass system

With integrated all-glass systems (IGG), the profile system is integrated between at least two glass panes so that its vertical and horizontal components remain out of sight.

Interface module

Synonym: Gateway

An interface module is a connection between a door system and a building automation system as well as the conversion of one data protocol into another.

Interlocking door system

Synonym: Interlocking door system

An interlocking door system refers to a sequence of two doors controlled in such a way that only one door can be opened at a time. The inner door contains the safety features needed to adequately protect the room located behind it.

ISO glass

Synonym: Insulation glass

ISO glass is the abbreviation for insulation glass. ISO glass refers to glass comprised of multiple overlaid panes that offers superior heat insulation (multiple glazing). ISO glass has become a standard norm within residential building construction.

I.S.T. Kingfix

The I.S.T. Kingfix latch lock guide provides additional benefits for more stringent demands regarding thermal insulation and sound proofing. The dimension of the I.S.T. Kingfix latch lock guide, 12 mm from the strike plate screw-points to the upper edge of the cover, is compatible with the dimensions of electric strikes that are commonly available on the market. Strike plates based on the dimensions mentioned above can continue to be used without the need for any alterations. The A4000 I.S.T. Kingfix can be retrofitted an existing doors using these strike plates without any difficulties.

Magnetic counter plate

The magnetic counter plate is the counterpart of the hold-open magnet. It is installed opposite to the magnet. There is a magnetic attraction between the hold-open magnet and the magnetic counter plate, which allows the door to be held open.

Main closing edge

The main closing edge (HSK) is the edge of a door or window located opposite the door stop. As such, it is also opposite the secondary closing edge.

Manual ventilation systems

Manual ventilation systems are systems in which the windows are opened manually rather than automatically, e.g. fanlight opening systems or cranked turn and tilt fittings.

Manual sliding wall system

Synonym: MSW

A manual sliding wall system comprises several door leaves that can be slid open. They consist of a main axis, along which the leaves are moved and a stacking area, where they are stored when the system is open.

Mechanical hold-open device

Mechanical hold-open is the general term for the mechanical hold-open device and hold-open linkage components.

Modular fixed panel profile

Synonym: Fixed-panel profile system

The modular fixed panel profile is a component of the glass fittings on the glass clamp fitting. It allows all-glass walls to be erected for the vertical and horizontal edging of ESG panes with a glass thickness of 8, 10 and 12 mm.

Motor lock

A motor lock is a lock that locks and unlocks using an electric motor.

Mortice lock

As opposed to other sorts of locks, mortice locks are inserted into a tubular-framed door or door leaf so that only the face plate is visible on the closing edge of the leaf. Normally, a mortice lock has one lock latch and one bolt.

Movement detectors

A movement detector is a non-contact sensor that identifies movement in front of the door and as a result, opens it.

Opening restrictor

Synonym: Opening restrictor

The opening restrictor is a component installed into the guide rail of door closers that serves to keep a door at a certain angle. If the sliding block comes into contact with the opening restrictor when the door is opened, the door will not open any further. The door remains open in this position for doors with a hold-open function and it closes once again for doors without a hold-open function.

Opening systems

An opening system encompasses all of the components used to open a window.

Opposite hinge side

The opposite hinge side of a door is the side of the door opposite to that where the hinge is located.

Overhead door closer

Synonyms: OTS

An overhead door closer is a door closer attached to the upper door rebate.

Overhead door closer with a link arm

Synonyms: Link arm door closer, overhead door closers with a link arm

An overhead door closer with link arm is a door closer that is attached to the door using a link arm.

Overhead door closers with a guide rail

Synonyms: Overhead door closer with guide rail

An overhead door closer with a guide rail is a door closer that is attached to the door using a guide rail.

Panic lock

A panic lock is a device that locks the door but allows for the door to be opened outwards from within at any time. In the event of danger or in panic situations, occupants can escape through this door unimpeded.

Panic bar

A panic bar is a horizontal touch bar that runs across the entire door leaf. In the event of panic situations, e.g. when a mass of people are pushing against the door, it can be activated simply by pushing against it.

Panic door

A panic door is a door that remains closed under normal circumstances to prevent unauthorised individuals from entering the building. In the event of a panic situation, it can be opened by people seeking to escape, without the need for previous instruction. This door functions as an emergency exit.

Partitioning

Synonym: Room division

Partitioning means that a larger room is subdivided into smaller rooms with the assistance of sliding walls or glass systems. The design of the subdivision can be either fixed or variable. 

Partition system

A partition system is comprised of sliding wall panels with which a room can flexibly be subdivided.

Passive leaf

Synonyms: Optional leaf

On doors with multiple leaves, the leaf that can remain closed while the active leaf is moved, is referred to as the passive or the optional leaf. If the passive leaf is opened, this always only occurs after the active leaf has been opened. When closing, the passive leaf must be closed first.

Photoelectric barrier

A photoelectric barrier is an optoelectronic system comprising one or more beams of light. If one of these beams of light is broken, the system recognises the obstruction that has caused this and emits an electrical signal. Photoelectric barriers are used for the non-contact recognition of moving objects.

Presence detectors

A presence detector is a non-contact security sensor. It recognises the presence of people or objects within the movement area of the door and causes the door to either stop or to reverse its movement.

Pressure ventilation system

A pressure ventilation system is a system that ensures that smoke and hazardous gases are removed from the building in a controlled manner in the event of a fire. At the same time, it ensures a supply of fresh air. The aim is to keep escape and rescue routes smoke-free and thus usable.

Telescopic door

Synonym: Telescopic door

Telescopic sliding doors are doors in which the leaves are guided along parallel tracks. This means the space on the side needed to open the door leaves can be smaller than the opening width of the door, thereby saving space.

Thermal detector

Thermal detectors trigger an alarm when a certain maximum temperature is exceeded or when there is a rapid temperature increase.

Thermally separated profile system

A thermally separated profile system is a profile system on which the inner and outer aluminium profile are separated by a plastic web. Since the plastic has a lower thermal conductivity than the aluminium, less heat is lost so that the energy efficiency is improved.

Toothed belt locking

Tooth belt locking is used to lock automatic sliding doors. This solution allows a door to remain locked, even without a power supply, but it can be manually opened in the event of an emergency.

Toughened safety glass

Synonym: ESG

Toughened safety glass is comprised of a single pane of glass, which has been heat-treated using a special process, to give the glass increased shock and impact resistance.

Transom installation

Transom installation refers to the installation of the door closer onto the door frame and the installation of the guide rail or link arm onto the door leaf.

T-stop guide rail

The T-stop guide rail is a guide rail with flexible opening restriction. It contains a damping material that the sliding block pushes against during opening, damping the door opening process. This guide rail makes floor mounted door stoppers redundant.

Tubular-framed door

Synonym: Tubular frame door, framed moving leaf door

A tubular-framed door is a door in which the outer frame of the door leaf has a profile and the inside has a filling. The filling can be made of any material, such as glass, wood, etc. On a tubular-framed door, the lock is integrated into the profile rather than into the filling.

Turnstile

A turnstile is a system used to direct people through an access point one at a time. This may, for example, be necessary for access control if the authorisation for each person wishing to pass through has to be verified.

Twin coil technology

Twin coil technology from GEZE allows for a greater range of operating voltages for electric strikes compared to standard coils. At the same time, this also reduces the variety of options, leading to lower inventory costs.

Underfloor drive

Underfloor drives are installed in a mounting tray at the bottom edge of the door leaf. This mounting tray is connected to the door leaf above a mounting element that functions as a hinge.

Unlocking lever

The unblocking lever, also known as the daytime setting, is an optional lever for the mechanical permanent unlocking of the electric strike. If a door is unlocked by activating this lever, it is only locked when this lever is activated again.

Ventilation

Synonym: Ventilation and exhaust

Ventilation refers to the targeted opening of windows to allow for the inside air to be exchanged with fresh air from outside. Manual ventilation refers to systems in which the windows are opened by hand, whereas automatic ventilation refers to systems operated by electrical drives. Ventilation refers to the targeted measure of allowing air to exit from an interior space and the channelling in of fresh outside air.

Ventilation technology

Ventilation technology encompasses all solutions aimed at the manual or automatic opening and closing of windows that serve to ventilate the rooms of a building.

Vestibule

A vestibule is a small room situated between the exterior door of a building and an additional interior door that leads to an inside space located behind it. By ensuring that one of the two doors always remains closed, cold air can be prevented from entering into the interior of the building.

Window safety system

Window safety systems serve to minimise dangers caused by the pinching and shearing edges of an automatic window.

Window leaf

A window leaf is the moving part of the window.

Window frame

A window frame is the fixed part of the window.

Window technology

At GEZE, the area of window technology encompasses products created for manually ventilating buildings, e.g. fanlight openers, electrical window drives and smoke and heat extraction systems.

Wireless programme

The GEZE wireless programme refers to all remote controls available for automatic doors that allow the door to be wirelessly operated via a remote control.