Wiring SQE Pumps [RE-wrenches]

[Ray Walters]

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Here's another pump question: I've recently started trying the constant 
pressure pumps from Franklin (the CP Mono-Drive and DO work on the 
SW4024) and the SQE from Grundfos. People love the constant pressure, we 
like the no surge, and higher efficiency. Here's the problem though, on 
regular pumps, we wired 120 vac to the pressure switch, which then only 
fire up the transformer and pump control when you needed water. On the 
new constant pressure setups, they use a pressure transducer, or signal 
switch, and we have to leave the transformer and controller on 24/7.
I thought about using a 2nd regular P-switch to feed power to the 
system, but with a constant pressure system it would never reach the 
high pressure cutoff. I thought about a voltage relay that shut off the 
pump, when the controller quit sending power to the pump, but how do you 
turn it on? We thought about controlling the relay with the signal from 
the pressure transducer, but it might shut power on & off to the pump 
every second....Day/ night timer.....
Who has the nifty way to wire this? Or just leave it all on, all the time?

Thanks as alway for all your great help,

Ray Walters

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