contact wiring question

[bonez05]

Hi all,

I recently replaced an old Ademco, with the Elk M1 and I'm learning a lot in the process.

The ademco only had support for 6 zones, so the original installer wired the upstairs window contacts in series and put them all on one zone. Since I have more zones now, I separated them, and put EOL resistors on all three and gave them their own zones.

Two are working, the third window is not working. When the window is opened it is not triggering a zone violation, and also still reports an impedance of 2200 ohms.

Anybody have any ideas as to why, the circuit would still look closed when the window contact is broken?

Thanks!

 

[jpmargis]

Sounds like you either have a bad window contact or the wiring at the contact has been shorted.

Just curious, did you find the EOLR that was originally installed?

 

[bonez05]

All the resistors were installed in the control box. I realize that's not ideal, but certainly made my life easier for switching out the Ademco for the elk. I'll have to play around with it some more and take the resistor i put on, off and see what the resistance is. I suppose the original installer could have wired a real EOL on the this contact since, they were seriesed together at the control box.

 

[BraveSirRobbin]

Best way to trouble shoot this is with a multimeter. Look at my security install How-to if you need detailed instructions.

 

[jpmargis]

but certainly made my life easier for switching out the Ademco for the elk.

You could have made your life even easier by eliminating the EOLRs altogether. Installing them at the ELK M1G panel serves absolutely no purpose.