SJE-Rhombus duplex VFD controller

SJE-Rhombus duplex VFD controller

SJE-Rhombus duplex VFD controller

The CPN1 duplex variable-frequency drive (VFD) controller from SJE-Rhombus is designed to work with two CPN1 or two CP3R VFD control panels for constant pressure applications. The controller alternates the lead control of two control panels based on the accumulated run time of each VFD (controller must be mounted indoors). The preprogrammed controller is designed to work "out-of-the-box" to control the lag pump operation in the duplex system to maintain operating pressure under high demand. Features include run status for both lead and lag pump and lead pump indication. Lead shift hours are adjustable from 1 to 24 hours. 888/342-5753; www.sjerhombus.com



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