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Bell & Gossett presents its Energy Saving Variable Speed Controller |
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Monday, 06 April 2009 |
Bell & Gossett launched the
NRF-VS, a variable speed control designed for use in hydronic heating  and
cooling applications that can improve system efficiency and comfort. According
to the company, this new product is ideal for applications requiring a variable
speed controller including primary-secondary applications and bypass boiler
injection.
The NRF-VS can be used with an external analog signal (4-20mA or 2-10V)
or with a sensor as a set point control. Variable Speed pumping has several
applications that can save energy costs and prevent thermal shock in boilers or
snow melt applications.
The NRF-VS Control is
available either installed on a B&G NRF-22 or as a field mountable
controller that can be installed onto a B&G wet rotor in the field. The
snap-on design allows the NRF-VS to be quickly attached to a standard B&G
wet rotor circulator.
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