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> Issues With New Pump Panel
dannyr
Posted: May 20, 2018 10:19 pm
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I recently had an electrician put together a “pump panel” for a 7 1/2 hp centrifugal pump – a Cornell 1.5 WH, 3600 rpm, single phase motor. Within the pump panel, he added on a “Pump Saver Plus, Model 235P”. https://www.clrwtr.com/UserFiles/CT/Documen...Pump-Savers.pdf This is a “flood suction” intake application – approximately 8 pounds pressure coming in – and ample volume – 6” pip poly line, approximately 1000 ft. long from a settling pond, with numerous constant working air vents. It also has a “Barksdale” low pressure switch – Model# E1H-R90-SO0159 – incorporated into the panel – which is adjusted to it’s minimum at 3 lbs. pressure”. I have used these in the past on other pump applications, yet not with a “Pump Saver”, and they worked great.
I tried personally to fire up the pump, yet upon starting the pump, it immediately shut down and could not get it to stay running after opening up the discharge valves. The electrician came back at my request, and stated “well, I never have wired one of these in, so this is the first time, and I don’t know why my boss added this on – the Pump Saver Plus”. He also stated “he had never seen a “Barksdale low pressure switch”.
Every time we tried firing the pump up, where we closed the discharge completely down – or dead headed it - to start the pump, which it did start, although immediately upon opening the discharge valve, ever so slightly, the Pump Saver Plus kicked in and shut off the pump. He made numerous attempts and adjustments to the “calibration” and “sensitivity” knobs, yet finally, after 3 hours, gave up and disconnected the Pump Saver Plus, which then allowed the pump to operate flawlessly, pressuring up the system. He left stating “well it runs, yet it won’t work with the Pump Saver”.
My questions is: Is there anyone that can help me diagnose the issue? The electrician charged me over $225 for installing this unit and it can’t be utilized.
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MacFromOK
Posted: May 20, 2018 11:04 pm
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Does the unit have a warranty?

It could be defective from the factory. Or a tech might be able to diagnose the problem over the phone from its symptoms. dunno.gif


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CoulombMagician
Posted: May 30, 2018 02:55 pm
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Can you post a schematic of how all the pieces are connected? Is the current transformer connected correctly? If it were reversed the pumpsaver would trip at very low motor currents. The other thought is that maybe the pump transient currents take longer than the 4-5 second trip times?
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