richthenoun
Member
Hi all, I have an HAI Omni LT with the 11A01 zone expander. I'm retrofitting this system in a home with nice Normally Closed built-in door and window contacts on everything and really want to use them but there doesn't seem to be any way of changing the EOL resistor out without doing damage.
There's also a glass break detector in every room with a window, there was no problem in changing the EOL detector in those though.
I have 23 total zones.
HAI listed a scenario on their "Application Directory" that seemed to address my exact situation (Have 2.2K EOL's in the walls) and what to do. Basically, you're suposed to add a 1.5K resistor on each circuit in series in the box, and tie the other side of the circuit to ground instead of the "-" side of the zone, so I happily ordered a bunch of 1.5K's and tried it.
Same result as tying the circuit down normally. The zone shows trouble. All i can think is that this technique doesn't work with the expander. I suppose i could see if this works on the first 8 zones (before the expander) but it would be kind of a moot point because I have a lot more door/window zones than 8.
Any advice/pointers out there?
-Rich
There's also a glass break detector in every room with a window, there was no problem in changing the EOL detector in those though.
I have 23 total zones.
HAI listed a scenario on their "Application Directory" that seemed to address my exact situation (Have 2.2K EOL's in the walls) and what to do. Basically, you're suposed to add a 1.5K resistor on each circuit in series in the box, and tie the other side of the circuit to ground instead of the "-" side of the zone, so I happily ordered a bunch of 1.5K's and tried it.
Same result as tying the circuit down normally. The zone shows trouble. All i can think is that this technique doesn't work with the expander. I suppose i could see if this works on the first 8 zones (before the expander) but it would be kind of a moot point because I have a lot more door/window zones than 8.
Any advice/pointers out there?
-Rich