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Water Pump & Filter System Controller
ESDI Model 251
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The ESDI Model 251 Water Pumping & Filtration System Controller is a low cost Electronic Control Board
that performs all of the functions necessary to efficiently operate an industrial/commercial water pumping and
filtration system. This controller incorporates flush cycles along with other features that make it cost effective
and easy to use. Comes with a two-year Warranty. Your satisfaction is guaranteed.
The Model 251 is perfect for manufacturers of Water Pumping & Filtration equipment that wish to lower
their production costs by outsourcing the electronic controllers for their standard systems. Our products are
made in the USA and comply with UL-508, and IEC Standard 1000-4-4 part 4 for electromagnetic interference.
Contact us if you require software changes to suit your specific needs.
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Features:
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- Maintains water storage tank level, using single float, or pressure switch input.
- Controls water inlet (feed) valve & membrane flush valve (24VAC rated).
- Lockout input monitors Hi/Lo water pressure, and/or water pre-treatment input.
- Selectable: 1 or 2 minute filter flush cycle to automatically rinse and clean filter.
- Selectable: Start Flush, Stop Flush, and 1 hour Interval Flush.
- Pump relay is isolated and rated for 1HP @ 120VAC and 2HP @ 240VAC.
- On board LED Status Display and easy access Option DIP Switches.
- Board Power: 24VAC, 50/60 Hz, 420ma • Transformer Power: 120/240VAC, 50/60 Hz.
- Board Size: 4” X 4”. • Enclosure Size: 6” X 6” X 4”.
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All of our products come with a Two-year Warranty. Your satisfaction is guaranteed.
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