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Design Envelope 4302 Dualarm

Brand: Armstrong Fluid Technology

Pipe-mounted 2-pump unit with integrated intelligent controls for space-saving installation, superior energy performance, and full redundancy or parallel-pumping operation. Saves up to 75% in energy over comparable traditional constant speed or variable frequency operated pump installations.
Features
  • Vertical In-line design eliminates the need inertia bases, housekeeping pads, and flex connectors and reduces piping requirements
  • 2-pump casing for reduced footprint
  • Integrated, intelligent controls eliminate the need for procurement, installation (incl. wiring), calibration and upkeep of differential pressure sensor
  • Superior energy performance qualifies for significant cost recovery under utility and government rebate programs
  • Design Envelope selections frequently recommend a smaller motor and/or pump which reduces installed cost
  • Integrated intelligent controls – combined with perfect component match-up and tuning – for up to 75% in energy savings over traditional constant speed and variable frequency operated pumping installations
  • Available with Parallel Sensorless control (patent pending) to provide best-efficiency staging of both pumps for additional energy savings
  • Shorter pipe runs reduce system friction 
  • Integrated intelligent controls – combined with perfect component match-up and tuning – for up to 75% lower energy consumption and carbon (greenhouse gas) emissions
  • Available with Parallel Sensorless control (patent pending) for best-efficiency staging of both pumps leading to additional energy savings
  • Integrated intelligent controls – combined with perfect component match-up and tuning – for fast and easy commissioning
  • Integrated intelligent controls for reduced radio frequency interference/ improved electromagnetic compatibility
  • Single source-responsibility for optimum design and field support
  • DualArm pumps are designed for full redundancy in case of emergency or routine servicing (each pump can be individually isolated from the system with the second pump still operating)
  • ETL Listed - conforms to UL STD 778
  • Certified to CSA STD C22.2 NO.108
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