Time delays
After pump stops due to insufficient sunshine – 120 1.
seconds
After full-tank float switch resets – 2 to 3 seconds 2.
After low-water probe regains contact with water 3.
in the source – 20 minutes but the indicator light
will slowly falsh for the rest of the solar day, or until
power is disrupted or the controller is turned off/on.
Battery systems – after low voltage disconnect point 4.
is reached, delay to stop pump – a few SECONDS.
After voltage recovers, delay to re-connect – a few
SECONDS
To force a quick start To test or observe the system,
you can bypass the normal time delays. Switch the POWER
switch off then on again. The pump should start immedi-
ately if sufficient power is present.
Pump vibration Most PS pump models use a helical rotor
pump end (those that do NOT have a “C” in the model
number. A slight vibration is normal with these pumps. If
noise is disturbing, try changing the position of the pump.
PS-Pump models that have a “C” in the model number use
a CENTRIFUGAL pump end similar to conventional pumps.
They should produce no significant vibration.
PUMP OVERLOAD (PUMP ON light shows red
instead of green) The system has shut off due to an
overload. This can happen if the motor or pump is blocked
or very difficult to turn and is drawing excessive current
(hard to turn). Overload detection requires at least 250 W
output of the solar array. This can be caused by a high con-
centration of solids in the pump, high water temperature,
excessive pressure due to high lift or a restriction in the
pipe, or a combination of these factors. The controller will
make 3 start attempts before shutting down the system.
The System ON LED will be OFF and the red OVERLOAD
LED ON. The system will not reset until the ON / OFF switch
is turned OFF and ON again. See section 9.3, Troubleshoot-
ing: Higher Current
To Next Page
Loading...
Need help?
General
