DanHenry Posted July 28, 2021 Report Share Posted July 28, 2021 Hi all, OK so small block of flats, stay put policy, single stair, single exit. The exit door has recently been upgraded to a 'intercom' system. Residents leaving the building press a 'press to exit' button. The door fails safe if electricity goes down. No communal alarm system. My question is does this need a 'green box' manual override? Thanks, Quote Link to comment Share on other sites More sharing options...
Tom Sutton Posted August 6, 2021 Report Share Posted August 6, 2021 Check out BS 7273 part 4. Quote Link to comment Share on other sites More sharing options...
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