Door Industry Journal - Winter 2014

Also online at: www.dijonline.co.uk 84 THE door industry journal winter 2014 building hardware RELCROSS AUTO EQUALIZERS HELP BRING EQUALITY TO SALISBURY GUILDHALL When the current Guildhall was built in Salisbury in 1795 it is not surprising that little thought was given to disabled access. But it was a major consideration in the latest £1.2 million refurbishment. Unfortunately the Georgians had fitted large and heavy doors and these defeated the capabilities of all the electrical automatic door operators that Salisbury City Council investigated. So they turned to door specialist Rowsman Ltd who in turn recommended LCN Auto Equalizers from Relcross. These automatic door operators are pneumatically powered and one compressor can power a number of doors. When the operator is actuated by a push pad, controlled air pressure is used to overcome the resistance of the spring and so open the door. When the air is released the spring and hydraulics take over, closing the door in a controlled mechanical fashion. Each system (or group of doors) has a separate controller incorporating one air valve per door or pair of doors. A lack of reliance upon micro-processors and complicated electronics means the Relcross LCN Auto Equalizer has much less opportunity for failure. It has been independently tested to over three million full load cycles and requires only occasional, minimal servicing of the compressor, usually with easily available proprietary components. The compressor is almost silent in operation with a noise level of dB (A)/1m 45 - equivalent to a ‘country quiet’ sound level. Five operators and two compressors were installed in the Guildhall. Relcross Sales & Marketing Director Stuart McMaster said: “LCN Auto Equalisers are often an ideal solution in historic buildings like this. Not only can they cope with the larger, heavier doors typical in such places but also the relevant fire regulations and, in addition, they are very low maintenance.” For further information call 01380 729600 or visit www.relcross.co.uk