That would work but if you already have the traditional irrigation controller I would keep that as well. Use vera to enable or disable the timers output either by the rain sensor input as theal states or by switching the common line to the valves as I note earlier in the thread.
The rationale for this is some degree of failsafe. If for some reason Vera got locked up or the ZWave device didn’t get the turn off the command, sprinklers could run for several hours/days. If the timer is still used the sprinklers will shut off if either vera shuts then off OR the tier shuts them off.
Sometimes in HA it isn’t the general case you need to think about, rather the degenerative or failsafe case…
This setup is just what I need. In trying to source the relay and power supply, the question of how much amperage is needed in the power supply. Any input on this?
Thanks
Power supply only has to power the relay coil so something small is just fine. 12VDC output. I just bought 12v power supply and auto relays on eBay for a couple $, very inexpensive. Try to use magnetic power supply and not a switch power supply. I found electronic ones can cause false turn ons of receptacles. I have other post on this regarding CA3500 spurious turn ons.
Sent from my iPad using Tapatalk
why not just put the existing sprinkler power on a simple appliance module . . . and either turn off/on when you dont want it to run or setup scene to check weather and built LUA to perform what you want? (most all systems are battery backed up and just dont open the valve if not plugged in)
Just a thought ~
[quote=“DECOOPER, post:24, topic:175269”]why not just put the existing sprinkler power on a simple appliance module . . . and either turn off/on when you dont want it to run or setup scene to check weather and built LUA to perform what you want? (most all systems are battery backed up and just dont open the valve if not plugged in)
Just a thought ~[/quote]
Anyone? I was wondering the same thing as I already have an applicance module ready to go and an existing sprinkler timer installed. Any reasons why just this won’t work?
Sure that will work. Be aware if you disconnect power the backup battery will drain to keep the click running so it won’t last forever. Also the battery backed clock may not be accurate so time could shift a few seconds here and there.
Sent from my iPad using Tapatalk