With lighting accounting for approximately 40% to 50% of energy consumption in today’s buildings, intelligent lighting control is an effective way of reducing costs without affecting the building’s functionality.  Here’s how Hager’s tebis.KNX bus system has recently helped customers to lower their lighting bills.

Futures Housing

Hager’s tebis.KNX bus system has provided a flexible lighting control solution for Dali addressable LED lighting in a large multi purpose room at Futures Housing Group’s headquarters.

The 130m2 room is used for meetings, a number of community events, training by the housing group and is hired out to other organisations. Futures Housing chose Dali addressable LED fittings from Fosnova as part of its green agenda to save energy.

As a multi-purpose room, Futures Housing needed a control solution that could set different lighting scenarios and was easy to understand. The KNX solution from Hager offered flexible control and easy installation.  The wireless controls need no cable runs and can be stuck anywhere on the wall.  Using KNX the wiring accessories offers both preset scenes and diming control.

Users can choose from fully on, fully off, dimmed right down for a movie or video, partially dimmed for a presentation where people want to take notes, and dimming up or dimming down control by the user.

In addition to the control inside the room, Futures Housing has also opted for a master switch outside the entrance to the room.  This either switches all of the lights on or off as you enter or leave.

A video on the installation at Futures Housing can be viewed here.

Birchin Court

Hager has supplied an intelligent and adaptable lighting system for the renovation of a Central London office; by combining its klik.system lighting installation and tebis.KNX. 

Designed by Concept Design 95 Ltd, the 7740 sq. ft. open plan office on the fourth floor of Birchin Court has recently undergone a total refurbishment. Using Hager’s prefabricated wiring system, klik.system, GT Electrics Ltd was able to save approximately 50% on lighting installation time, when compared to standard wiring systems. In addition, by using ‘plug and play’, the prefabricated wiring allows the lighting configuration to be easily changed to suit the needs of future tenants.

Guy Tayler, managing director of GT Electrics Ltd comments: “We chose Hager’s klik.system due to the speed of installation. The system has pre-tested cables, meaning less time on site; whilst the colour coded plugs allowed our electricians to easily identify which particular circuit the cables run to.

“Another advantage of the klik.system is the multi-pin plugs, which allow dimming, as well as 230V power to each light fitting.”

There are three entrances to the office at Birchin Court. Luminaires are grouped together using klik marshalling boxes and are controlled by a sensor, combining occupancy detection with daylight harvesting. The tebis.KNX bus links the occupancy sensors, switches and KNX actuators to allow control of the lighting circuits. The alternative hard-wired solution would involve running cables to a switch – this is both labour intensive and inflexible if there are any changes or additions. 

Hager’s tebis.KNX system allowed GT Electrics to programme the lighting to create a corridor of light when presence is detected in any of the three entrances, which is especially suitable for the night security guards and late workers. Each sensor can be programmed to be a master and a slave, meaning if a sensor detects presence it will switch on its lights, and it will also communicate with adjacent sensors so that the entire corridor is lit.

Other control includes a time clock, to allow the lighting to turn on and off at pre-set times. At night, the lighting is set to a 10% dimmed level for improved energy efficiency.

Guy Tayler adds: “Compared to standard light switches, the Hager tebis.KNX system allows for flexible use of the lighting. The system can be easily programmed and re-programmed in the future, as the office layout is altered.

“The Hager engineers came to site both during and after installation to check there were no issues. Using Hager’s klik.system with tebis.KNX has been a good investment, saving us time and the associated costs on installation.”

A video on the installation at Birchin Court can be viewed here.

For further information about Hager’s tebis.KNX bus system contact:  Hager ltd, Hortonwood 50, Telford, TF1 7FT.  Telephone 01952 675612.  Email:  info@hager.co.uk Web: www.hager.co.uk