Learn more about Kone elevator documentation & terminology.


Battery-Operated Lowering Device

This is a reserve battery power supply for power-failure situations during which the elevator cab will rise or lower to the first avaialble landing and open the doors and shut down. The elevator will return to service upon the return of normal mainline power.


The enclosure which carries the passengers and/or other loads.


The amount of weight, in pounds, an elevator is able to carry.


The load carrying unit including its platform, car frame, elevator cab, and car door or gate.

Car Lantern

This is the iluminated direction sign (usually arrow-shaped) installed by the elevator car entrance jamb(s). It indicates the direction in which it is about to travel.

Car Operating Panel

User interface for passengers inside the elevator car. Can include car call buttons, alarm button, door open button etc.

Car Position Indicator

A device located in the car which indicates the position of the elevator cab in the hoistway.

Clear height under suspended ceiling

The dimension from the floor to the suspended cab ceiling.

Clear inside car dimension

The net usable space (WxD) inside the car which is available for the passengers.


A component which ensures traction between the traction sheave and the suspension ropes and which comprises a set of weights to balance the weight of the car and a proportion of the load in the car, often taken as 50 % of the rated load.


The basic model is shown by default; other models may increase the cost estimate.

Destination Control

An elevator control system which optimizes the elevator group control system. When the passengers select their own destination floors at landings before entering the elevator car, the system allocates the most suitable elevator to the passengers whom are going to the same floor.


This is a term describes a group of two elevators.

Feet Per Minute (FPM)

A unit of speed describing the amount of feet traveled in 1 minute at full speed.

Guide Rail Bracket Attachment Points

The points in the hoistway where the brackets of the elevator guide rails are directly fastened to the building's structure.

Hall Lantern

An illuminated direction sign (usually arrow-shaped) installed at a landing. It indicates an approaching elevator and the direction in which it is traveling.

Hall Position Indicator

A device located in the hall that indicates the position of the elevator car in the hoistway.

Hoist Beam

A beam (usually an I Beam) placed in the overhead of the elevator hoistway required for installation and maintenance of an MRL elevator.


The space in which the car and the counterweight, if there is one, travel; this space is usually bounded by the bottom of the pit, the walls and the ceiling of the shaft.

Hoistway Access

A switch usually located at the top or bottom landing with which an elevator car may be operated from a landing with the car door and hoistway door open to provide a means of access to the top of the car or the the hoistway pit.

Hotel - 1-2 Star

A 2-star rating means these hotels are generally part of a chain which offers consistent quality, yet limited amenities. They are small or medium in size and rooms will have a phone and TV. While you will not have the convenience of room service, there should be a small restaurant on-site.
A 1-star rating entails a small hotel managed and operated by the owner. The atmosphere will be more personal and the accommodation fairly basic. Restaurants should be within walking distance, as well as nearby public transportation and reasonably priced entertainment.

Hotel - 3-5 Star

A 5-star rating refers to luxurious hotels, offering the highest degree of personal service. The rooms are equipped with quality linens, VCR, CD stereo, jacuzzi tubs, and in-room video. There are multiple restaurants on-site with extensive gourmet menus, and room service is also available 24/7. A fitness center, valet parking, and concierge service make for a world-class experience.
A 4-star rating refers to large hotels with top-notch service. There will usually be other hotels of the same caliber clustered nearby, as well as shopping, dining, and entertainment. An above-average service, beautifully furnished rooms, restaurants, room service, valet parking, a fitness center, and a concierge are some of the amenities which can be expected.
A 3-star rating means the hotel is usually located near a major expressway, business center, and/or shopping area. These hotels offer nice, spacious rooms and decorative lobbies. On-site restaurants may be average in size but will offer breakfast, lunch, and dinner. Valet, room service and a small fitness center are often part of the hotel experience.

Independent Service

A type of operation used for automatic elevators, usually controlled by a key-operated switch which bypassess all landing calls and deactivates hall lanterns. It can only be operated from the car buttons.

Machine-Room Less Elevator (MRL)

An elevator concept where the hoisting machine, overspeed governor, control panel, drive panel and suspension rope fixings are located inside the elevator shaft. Also known as an MRL elevator.

Office - Class A

Most prestigious buildings competing for premier office users with the rent being above average for the area. Buildings have a high-quality finish and high standards, state-of-the-art systems, exceptional accessibility and a distinct market presence.

Office - Class B

Buildings competing for a wide range of users with rent being in the average range for the area. Building finishes are fair to good for the area and systems are adequate, but the building does not compete with Class A at the same price.

Office - Class C

Buildings competing for tenants requiring functional space at a rent below the average for the area.

Overhead - Clear

A portion of the elevator shaft extending up from the sill level of the top landing to the nearest obstruction in the hoistway.


A portion of the elevator shaft extending from the sill level of the lowest landing to the elevator hoistway floor.

Pit Ladder

A ladder in the elevator shaft wall to provide an easy access to the pit for maintenance personnel.

Seismic Operation

An operational mode in which the elevator is brought to and stopped at the nearest possible floor in case an earthquake is detected.


A control system for a single elevator.

Standby Power

This refers to an emergency power generator in the case of power failure during which the elevator car will typically lower to the lowest landing and open the doors and shut down. The elevator will return to service upon the return of normal mainline power.


This terms describes a group of three elevators.