Design Envelope Pumps
Armstrong’s Design Envelope package seamlessly assembles the perfectly matched pump, motor and intelligent variable speed controller to provide the best value pumping solution. Design Envelope pumps optimize the pumps impeller size and speed control within a given performance envelope to ensure that the installation meets or exceeds ASHRAE 90.1 guidelines requiring 70% energy savings at 50% of peak load, which is where typical variable flow systems operate most often.
Project costs are reduced by eliminating wiring from the pump to the VFD, shaft grounding, and field pressure sensors. An optimized package also allows for smaller motor selections, and the elimination of the housekeeping pads, flex connections, grouting reduces the pumping package footprint (50-75% smaller footprint). An integrated controller also eliminates the need for valuable wall space for a separate VFD.