Not for wheelchair access...
Hi Alec, Thanks for answering my query and looking into it.
The doors are on Operating Rooms. As they are, you press buttons once to open the doors. There are three button choices.
The top one opens the doors fully and leaves them open until you once again press the top button.
The next button down is for personnel entry and only opens the doors half way, holds for one second and then closes the doors.
The last button is for patient bed transfer in or out of the room. It opens the doors fully just as the top-most button does but only holds them open for about 18 seconds and then lets them close.
That covers the push-buttons. There are also (on the left and right sides) below the buttons and extending almost to the floor two black rubber bump-strips that are simple contact switches (normally open 2-wire like the push-buttons above). These bump-strips are connected across the same 2 wires of the Bed Transfer push-button. This factory connection I will need to disconnect and the modification will be wired between the bump-strip wires and the Bed Transfer push-button wires so the Bed Transfer push-buttons won't be affected and will still open the doors with only a single push of that button. Only the bump-strips will require a double hit to make the doors open. They don't want the doors to accidentally open during a surgery if someone comes by and hits a bump-strip with a cart, patient bed, or other mobile equipment.
Thanks again for your help.