Ademco Accord Xpc 2 X Pir On 1 Zone

[sparcktikus]

Hi all

I know its not recommended but i need to double up 2 pir's onto 1 zone, no more zones in panel and these two sensors are literally back to back pointing either way of long corridor.

The panel is accord xpc and activ8 pir's, using double end of line resistor circuitry for zones

Is this possible to double up ? if so hows it wired

thanks

[sixwheeledbeast]

Upgrade the panel to a bigger one IMO

[sparcktikus]

think thats a bit overkill just for 1 additional zone ..

[norman]

Yes your are right just crack on and double up, better still wire them in parallel to reduce fa's

[jb-eye]

Yes your are right just crack on and double up, better still wire them in parallel to reduce fa's

Cruel! But the clue to resolve is in the answer.

[james.wilson]

think thats a bit overkill just for 1 additional zone ..

Im afraid its the only right way

[PeterJames]

You may think its over kill but when you have a fa on that zone are you gonna replace both detectors. IIRC the XPC has a 9th zone on the RKP have you used that?

[sparcktikus]

not interested whether its morally correct or incorrect or not the done thing.

i just know how i would like my system to work

and would like to know whether anyone can help achieve this with some helpful info, cos thats what forums are made for..

just want to use two pirs on one double end of line zone, ademco uses 2 x 1k resistors by the way.

Can i achieve this? my ultimate goal.

thanks

[james.wilson]

Its possible to make it work but it is really a bad idea.

Its not a simple diagram either.

But if your sure ill know up a diagram later

[sixwheeledbeast]

not interested whether its morally correct or incorrect or not the done thing.

Sorry to be harsh but why should we be interested.

You have been told how to do it, politely and helpfully.

Your best option is to use the keypad zone if available.