DDA Accessible Swing Door Conversion Using A Record DFA127 Operator For Said Business School Oxford
This project was following a DDA access audit for Oxford University to allow easier access for all using Said Business School.
We always attend site and carry out survey to understand the requirements prior to quotation and installation. BH doors want to ensure that the installation, fits the requirements, provides a solution, works operationally and above all safely.
The issue was that this is a toughened glass door with a floor spring closer, maglock and access control system.
BH Doors solution was to install a Record DFA127 operator internally to push the door open by means of an arm attached to the top rail. This meant that the Transom had to be reinforced to provide a fixing ground.
As this is a security door with integral locking, we had to interface with the access control system so that when the users tapped their card the door would automatically unlock, open and after a time delay, close and relock.
Automatic doors have a number of risks and in particular with a swing door, Impact and Crushing where the door could open or close upon a person. To eliminate this risk, we installed an on-door laser safety sensor for BEA called a Flatscan to both sides of the door leaf.
During commissioning and a service, we test that these sensors are detecting correctly using a BS EN16005 test box which replicates a child stood within the sweep area of the door. The basic test is that the door should stop before touching the box during the operation of the door.
To exit the building, we installed battery powered touchless buttons which perform the same function as the access control in operation. The reason for wireless technology is that these can be installed anywhere within the proximity of the door without the need to provide containment for cabling, thus saving time and money.