 Solar/Wind Water Pumps
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SQ Flex The Grundfos SQ Flex pumping systems are a giant leap forward for
solar water pumping. Grundfos, the world’s largest pump manufacturer, has reduced the cost of
the pumps along with reducing the power needs. The result is a Grundfos centrifugal or helical rotor
quality system for about the cost of a diaphragm pump. The Grundfos SQ Flex pumping system can also
be powered by a wind generator if you have the right site. The Whisper WHI-200 Waterpumper is the
required generator. Features: • Up to 390 foot head applications • 30-300 Vdc, or
90-240 Vac single-phase AC input. • Permanent magnet high
efficiency motor • Overload protection • Over temperature protection • Dry running protection • Maximum Power Point Tracking to optimize pump operation according
to DC Power available. • Power line communication
with the CU200 (optional) to display operational conditions
Model | TDH Range Ft. | Nominal GPM | Length in. | NPT Output Size in. |
3 SQF-2 | 120 - 390 | 3 | 47 | 1 |
6 SQF-2 | 120 - 390 | 6 | 48 | 1 |
11 SQF-2 | 40 - 300 | 11 | 49 | 1 1/4 |
25 SQF-3 | 0 - 40 | 25 | 33 | 1 1/2 |
25 SQF-6 | 0 - 60 | 25 | 35 | 1 1/2 |
40 SQF-3 | 0 - 20 | 40 | 37 | 2 |
75 SQF-3 | 0 - 40 | 75 | 39 | 2 |
IO 101 – Generator Interface Box for Grundfos SQFlex. Includes On/Off switch (replaces IO 100) and allows for operation of SQFlex pump for either solar or manual-start generator. No float switch terminals. *Add a CU200 pump controller for the Grundfos SQFlex if a float switch is needed.
IO 102 – Wind Generator Breaker Box. This box includes a rectifier for the wind generator and a stop switch, and allows the Grundfos SQFlex pump to operate from either the H80 wind generator or a combination of wind and solar. *Add a CU200 pump controller for the Grundfos SQFlex if a float switch is needed.
CU 200 – SQFlex Control Box. This controller and system monitor can be used with solar alone or in combination with the IO101 (for manual generator backup) and/or the IO102 ( for wind generator ). The CU200 will allow you to add a float switch to shut off the pump when the storage tank is full. The system monitor display on the CU200 shows the following: • Pump operation • Full Tank • Input Power ( Watts ) • Alarm Indicator for dry running, overvoltage, overload and overtemperature.
Water Level Switch – Mechanical float switch