I just installed my 15th Rachio today. Every job is a little different! Most of my customers have old Intermatic 110v timers. So wiring the Rachio outdoor enclosure, controller and valves is a snap. But about 20% of my customers are on a lake and have a 220v irrigation pump + 220v timer.
Since the Rachio (at least as of now) only works on 110v I am faced with (2) choices. I have done both.
I can run a whole second circuit to the outside if the building, or somehow run 110v through a wall. This allows me to supply the Rachio at 110v while keeping the pump and pump relay both at 220v. But depending on the location of the breaker or adjacent outlets this could cost me $$$ in parts and 1hr++ in extra time on the install.
I can convert the 220v circuit to 110v. I.e. swap out the breaker, move the second phase (red) over to the (white) neutral bus. Change the internal motor switch to 110. I’m licenced so non of the electrical work if difficult for me.
But here’s the problem. An irrigation pump at 220v runs at LOWER AMPS and consumes LESS POWER. Should I spend the time and money to do whats best, running new 110v circuit Or should I save my time and money at the expense of a little extra on my customers bill. Keeping in mind that rarely could I pass the whole cost of either choice along to my customer.