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A separate electronic timer in the pump shed. The system is a hybrid.You have me a little bit confused here. If you're using the SVCs in the field, what's controlling the master valve?
Right. Thanks. Does that imply that standard 24v AC valve solenoidsTo answer your question, no harm would come to the controllers. The DC solenoids don't get hot like AC.
The pump pressurises a tank, so switches on and off, automatically.OK. I wont be able to give you any more advice on this. I don't know the first thing about your pump and what will happen when it tries to run but you have a shut off valve on the line. Sounds like it might burn up to me.
My question is what event does the 2" ball valve need to be shut off for if you have a master valve?
Very tactfully put!The debate for running solenoids with no water in the valve has been out for a while. While it does produce heat it more then likely won't harm much- at the most it will just lessen the life of the solenoid. Which in your situation isn't the biggest deal because solenoids are fairly cheap and you have to do this because of your unique situation.