By HPAC MagazineHydronics
Armstrong Fluid Technology’s COMPASS H high-efficiency wet-rotor circulators feature advanced Design Envelope variable speed technology. A Quadratic Sensorless flow control algorithm intelligently responds to system demand to consistently provide only the necessary flow. Other key features of the circulator include: broad operating range of up to 20 ft. of head and up to 20 USgpm flow; accepts 0-10V DC external control; nine different modes of operation including auto; and a large wiring chamber and front-mounted terminal block.
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