The IPS 4000 pumping system controller for variable primary applications from Armstrong Fluid Technology features sensorless pump control and best-efficiency staging in a headered configuration for maximum operating efficiency. It is compatible with zone sensors for easy application to a wide range of variable primary, secondary or tertiary applications. In a primary application, the IPS 4000 also automates pumps in response to a changing number of chillers or boilers.
Armstrong www.armstrongfluidtechnology.com