Have a university that wants to have the doors open to increase air flow with the pandemic going around.
On the TAC20 what I said yesterday was correct, LBY and LER is just how you enable parking, then set CSW-14. Car will park, then open doors for 8 seconds, then Next-Up turns off and doors close. You can change the time with NDH but only from 3-30 seconds. You’ll find though, that when you place a car call the doors still stay open for NDH time. NCO defaults to 3 so you have to put in 4 car calls to override Next-Up. You can set NCO to 0 which makes it take the car call immediately but it will not bypass Next-Up for hall calls so it will sit there until NDH time expires before answering the hall call. Maybe okay for a duplex but not for a simplex.
I should have asked how many cars are in the group.
There is 8 different buildings and of course they are all simplex.
We tried the above today, and works just like you say. So it appears that we can not keep the doors open for air flow purposes, until a hall or car call is entered.