May 2, 2012
New CPN1 Duplex VFD Controller is design to work with two CPN1 VFD Panels or two CP3R control panels for duplex constant pressure control applications.

SJE-Rhombus®, an industry leader in providing pump control solutions for water and wastewater applications, introduces the CPN1 Duplex VFD Controller designed to work with two CPN1 or two CP3R VFD control panels for constant pressure applications.
The CPN1 Duplex VFD Controller alternates the lead control of two CPN1 or two CP3R VFD control panels, based on the accumulated run time of each variable frequency drive (controller must be mounted indoors). This pre-programmed controller is designed to work “out-of-the-box” to control the lag pump operation in the duplex system as to maintain the operating pressure under high demand. The controller features pump run status for both lead and lag pumps and lead pump indication. The lead shift hours are adjustable from 1-24 hours. UL/cUL Listed, three-year limited warranty.
SJE-Rhombus is a leading control solutions provider, combining 35 years of expertise in pump controls with the latest technology to deliver energy efficient, cost-effective products for a wide variety of residential, commercial, municipal, industrial and agricultural applications. With corporate headquarters located in Detroit Lakes, Minnesota, SJE-Rhombus does business globally from six locations across the United States and Asia. SJE-Rhombus is a 100% employee-owned, privately held company. To learn more, visit www.sjerhombus.com, www.facebook.com/sjerhombus or call toll free 1-888-342-5753.
Learn more about the CPN1 Duplex VFD Controller for CPN1 VFD Panels
Learn more about the CPN1 Duplex VFD Controller for CP3R VFD Panels