The Design Envelope Booster systems are exciting products which integrate the added-value of Armstrong Brand variable speed control with traditional MultiStage pump designs, for the smallest footprint. These state-of-the-art units feature fully Stainless Steel construction, including headers, base, panel support and pumps, other than larger pump series casings, no-flow shutdown, soft-fill for initial fill and post-power failure start-up, and power saving reduced pressure setting at low flows
Armstrong 6900 Design Envelope Boosters are fully assembled, programmed, integrated and factory-tested turn-key booster systems. They are equipped with either close coupled or split coupled dualARM pumps including integrated controls for superior performance and energy efficiency across broad operating envelopes. Most suitable for applications where energy consumption and low maintenance are critical, installation space comes at a premium, and occupant comfort is a high priority.