SL 2000 duct smoke detector

[harshal]

Has anyone install the above duct smoke detector?I was looking at the diagram but looks a bit confusing.Any tips.

[Admin]

I haven't used one myself.  What are you trying to do with it?  Is it being connected to a fire alarm control panel?  What type of system are you working with?  air handler, gas furnace, rooftop?

I found the SL-2000 instruction manual, and it's not the greatest.

Are you trying to stop the fan if the detector goes off?

It looks like you would wire a 24V source to terminals 9 and 10 on the detector.  You could use R and C as a source or install a new transformer.  Then you tie into G to interrupt the fan by wiring it in series to terminals 7 and 18 on the detector.  If the detector went off terminals 7 and 18 would open and stop the fan.

You could also interrupt a 120V or 230V fan motor.  Make sure the neutral wire goes to the 115 terminal and the hot wire goes to the H terminal if you're trying to stop a 120V fan motor.

Then you would just tie into the fan motor's neutral wire and connect it in series to terminals 7 and 18 on the detector.  The fan motor would stop running if the detector went off.

Is this a residential or commercial job?

[harshal]

Its residential job.i am trying to cut off the furnace in case the smoke comes off in the duct for whatever reason.I think that explanation will help me a lot.
Thx.

[Admin]

Good stuff!

You could also tie into R to kill the entire system or W to cut the heat.

[harshal]

Is someone use the duct smoke detector other than SL 2000?Some city has the bylaw requirement to install on the furnace for legal basement requirement.