trouble wiring pump control

boiler_man

I recently purchased a DPC-CLL dumpexing pump control from "DWYER". I and 2 electricians have been scratching our heads for many hours at this control trying to understand how to wire it in. I have tried to attach the only wiring diagram that came with the control.



The switch is to control and alternate 2 condensate return pumps to a steam boiler. The boiler has a float switch that sends 220 directly to the pumps. Id like to install this control between the float switch and the pumps so that it will alternate them.



Any light that can be shed on this matter is appreciated.

Empire_2

Nothing attached.

Nothing attached.  Does this control have a time clock or is it used as "Lead/Lag".?



Mike T.

boiler_man

thank you empire

boiler_man

dpc control

It is a lead / lag

Paul48

You

want to use the float switch as the control switch in that diagram,and let the new controller direct the 240. http://www.dwyer-inst.com/PDF_files/DPC_iom.pdf