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EOL, N/O heat, and the Elk


Senior Member
I just mounted a heat alarm that's N/O, and put an EOL on it. I didn't bridge the circuit, rather I put it inline.

In the Elk, I then set it to Heat-Alarm, EOL supervised. I got a zone trouble.

Should I put bridge the terminals or put it inline? Logic dictates that I did it wrong, that it should bridge the terminals, but all my other devices are N/C and hence I put it inline.

Just checking before I do another stupid thing. Hopefully no one out there thought I was done asking questions just because I'm "live" with the Elk...


Senior Member
For a NO device the EOL goes in parallel with the last device in the line.

For a NC device the EOL goes in series with the last device in the line.