24V indicator lights for zone valves.

[MrEd]

I have 6 taco zone valves, each with three wires on top, and when a zone calls for heat 24V gets passed down to open the valve. I'd like to add little red led light to each zone so that from a distance (in the dark cellar), and I can tell which zones are open and which are not. I suspect its simple thing to do, but is there any problem with this? Anyone else doing this and have a specific part number/website to order from?

 

[Mid Michigan]

Finding 24VAC lights will be a challenge. Lots of 24VDC out there.
Are you using the end switch?
If not you could run DC power through the end switches for a more common type of bulb installation.

 

[Nofossil]

An LED in series with about a 3.3K resistor should do the trick.

 

[MrEd]

This is why I asked...I totally spaced on the whole AC versus DC thing.

My zone valves run off 24V AC...wouldn't something like this just work?

(broken link removed to http://www.itcelectronics.com/product_info.php?cPath=1170_1352&products_id=3023)

 

[chew72]

This is why I asked...I totally spaced on the whole AC versus DC thing.

My zone valves run off 24V AC...wouldn't something like this just work?

(broken link removed to http://www.itcelectronics.com/product_info.php?cPath=1170_1352&products_id=3023)

This is what your looking for. It's rated for 24V ac/dc the one you linked is rated for 120Vac

(broken link removed to http://www.itcelectronics.com/product_info.php?cPath=1170_1352&products_id=3031)

 

[jebatty]

I also installed the 110VAC version in the wiring box of my circs, so when the circ is "on," a bright pilot light shows on the wiring case.

 

[chew72]

Great idea on the pilot lights by the way. I'm thinking when it comes time for me to build my house I'm going to make a diagram showing the layout of the system complete with indicator lights and temperature monitors.