SunRotor Solar Pump, Инструкция по установке и руководство по ресурсам

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10.4 T
ROUBLESHOOTING
C
HECKLIST
The following items may be causing the solar water pumping system to have less than expected flow
rate or pump failure. Be sure to go through the list before contacting your Authorized SunRotor
®
Dealer or calling the SunRotor ® Technical Services Team.
1. Is the solar array receiving shadow-free light? It only takes a small shadow to reduce
efficiency. Is the solar array oriented properly toward the south, and tilted at the proper
angle? See
Section 5 Solar Array Installation .
2. Has any additional lift or pressure requirements been added or changed? The system was
sized based on specific information provided; if this is changed, there may be a reduction in
flow rate.
3. Are the wires and pipes undersized? If the pump wires and pipe were not adequately sized
for the distances used, the flow rate may not be consistent due to loss in current and/or friction
loss.
4. Inspect and test the solar array input and controller output. Are the values lower than what
the system is rated for? This may be caused by a short in the wire, bad connection or
improperly configured wiring.
5. Are there any leaks in the pipe from the pump? There should be little or no leakage over a
period of hours.
6. Has the pump’s speed control setting been moved lower than the maximum? The speed
control can slow the pump down to 30% of maximum power, and may be causing lower than
expected flow rates if moved.
7. Look in the water tank or pipes:
a. Is the AC motor current lower than normal? The rotor and/or stator may have been
worn from too much abrasive materials or particles (sand or clay) in the water. See
Section 11 Maintenance for more details on how to change the rotor/stator.
b. Is the AC motor current higher than normal? Does it have trouble starting in low light?
This is likely related to a blockage in the pump and/or pipe.
c. Is there sediment accumulating in the pipes or tank? Additional accessories may be
needed to keep from damaging the system (See
Section 7.10 Coping with Dirty Water
Conditions ).
Additionally, age may be a factor. After many years of use, it may be necessary to have the motor
rebuilt or replace the pump end. For more information and services provided, please contact the
SunRotor
®
Technical Services Team.
11 M
AINTENANCE
One of the defining features of the SunRotor
®
solar pump product line is its ability to be repaired at a
fraction of the cost of buying a new replacement. A little care and attention can extend the life of the
system drastically and save money in the long run.