Posted By: ElevatorGuy128
Fire Service/Keyed stop switch - 09/25/21 08:30 PM
So recently out west ( I believe CA) it was found that on certain controllers an issue with the keyed stop switch when operating it while on fire service phase 2. I've heard several different variations of what they found and how it should operate so bear with me here - I may have some of the details incorrect... but basically I believe the issue deals with the door opening fully when the keyed stop switch is turned on (and door open button is not being pressed) or failing to close when the keyed stop switch is turned on as the door is midway open and the open button is released.
I've been trying to get clarification from inspectors on this but it seems each inspector tests it differently. The main point for this post is I'm wondering if anyone has an experience with this for certain control manufacturers? I've heard MCE is working on it but may require circuitry changes in their controllers, same for VC. Not sure about Elevator controls or any the manufacturers. We are on 2013 code which speaking to our code coordinator said this really isn't in the code however the state is trying to be proactive. This is starting to pose an issue as it seems we are having customers getting hit with this during tests almost weekly, so I'm trying to get ahead of it and see if anyone is familiar with this yet? Wondering if what i'm hearing is accurate regarding certain Mfgs needing additional circuitry or if there is something I can change in programming, etc? It almost seems like they just want the keyed stop switch completely bypassed on fire service although like I said, i'm having trouble getting clarification if that will be acceptable. (thinking if this is the case I may be able to add a relay to the keyed switch circuitry that activates when the phase 2 switch is turned on for certain systems at least)
most of our stuff on account is non-proprietary so any help on those systems (MCE, VC, EC, etc) would be a huge help.... we do have some proprietary equipment however so info on those controllers is welcome as well.
Thanks for any help
I've been trying to get clarification from inspectors on this but it seems each inspector tests it differently. The main point for this post is I'm wondering if anyone has an experience with this for certain control manufacturers? I've heard MCE is working on it but may require circuitry changes in their controllers, same for VC. Not sure about Elevator controls or any the manufacturers. We are on 2013 code which speaking to our code coordinator said this really isn't in the code however the state is trying to be proactive. This is starting to pose an issue as it seems we are having customers getting hit with this during tests almost weekly, so I'm trying to get ahead of it and see if anyone is familiar with this yet? Wondering if what i'm hearing is accurate regarding certain Mfgs needing additional circuitry or if there is something I can change in programming, etc? It almost seems like they just want the keyed stop switch completely bypassed on fire service although like I said, i'm having trouble getting clarification if that will be acceptable. (thinking if this is the case I may be able to add a relay to the keyed switch circuitry that activates when the phase 2 switch is turned on for certain systems at least)
most of our stuff on account is non-proprietary so any help on those systems (MCE, VC, EC, etc) would be a huge help.... we do have some proprietary equipment however so info on those controllers is welcome as well.
Thanks for any help