Design Envelope pump vs. a variable speed drive on the wall - white paper

This attached white paper will detail why you are better off REPLACING your constant speed circulator with an Armstrong Design Envelope one, rather than simply adding a wall mounted VFD drive.

See below attached for: Design Envelope pump vs. a variable speed drive on the wall - white paper

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A brief summary:

This paper details a factory test rig simulation comparing an Armstrong Desing Envelope (DE) pump with a traditional pump and wall-mounted Variable Frequency Drive (VFD) to a traditional pump in an energy upgrade refit.

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