Both electronic timers have built in 24vac transformers. Maybe I wasn't clear, I wasn't going to rectify the voltage. Instead I was curious that if both the timers are used as triggers for the relays, where would the current come to power on the solenoid. I don't exactly have a constant 24vac...
Damn...those are expensive! Another question, if each timer will be powering the coil of each relay, what will power the valve solenoid? Will i need another transformer to create a circuit between the output of relay and the solenoid. Basically the relay would be a switch correct?
The main...
My understanding was that having two positives together on at the same time could short either or both of the timers. But if this is not the case, then this seems like the easiest option. The main valve is practically buried and if I can, I would like to avoid digging and re-plumbing :)
I...
Even though I would program the two so that there are no overlaps...I wanted it to be idiot proof in case one of the kids decided to fiddle around.
So your saying even if both timers are ON, they will not back-feed each other as long as the polarity of the timers is the same? I would wire...
Background Info: I have just expanded my already huge sprinkler system (16+ zones). The old timer only controlled 12 zones so I added an additional timer to control the new valves/solenoid. Each timer needs to output 24VAC to the main valve solenoid and one respective valve (without the main...