7
Starting the pump
Be sure there is not a
closed valve or other obstruction in the water
line.
Fill the pump with clean water until the water
level reaches the inlet connection. Coat the
O-Ring seal with Vaseline, close the lid by
hand and make sure that it is well in the
housing groove. Otherwise the pump will
prime insufficiently or not at all.
NEVER LET THE PUMP RUN DRY, NOT
EVEN FOR THE PURPOSE OF CHECKING
THE DIRECTION OF ROTATION !
Switch on the array disconnect switch, and
toggle the power switch on the controller. It is
normal to leave the switches on at all times,
unless you desire to have the system off.
A solar-direct pump should start under the
following conditions
1. clear sunshine at an angle of about 20° or
more from the surface of the solar array
2. cloudy conditions, if the sunshine is bright
enough to cast some shadow
3. low-water probe submersed in the water
source (or bypassed in the controller) –
Water-Low light OFF
4. full-tank float switch is not responding to a
full tank – Tank-Full light OFF
5. battery system only – voltage is higher
than the low-voltage disconnect point of
44V.
When sunshine is insufficient
When
sunshine on the array is present, but too
weak for the pump to run, it will attempt to
start about every 120 seconds. During each
attempt, you will see the PUMP ON light
come on.
When pump runs slowly (PUMP ON) under
weak sun conditions the pump may spin
without lifting water all the way to the outlet.
This is normal.
When pump stops from a sudden shadow on
the solar array
If a shadow suddenly passes over the array,
like if you walk in front if it, the controller will
lose track of the input voltage. This does
NOT indicate a problem. The pump will
attempt to restart after the normal delay.
Time delays
1. After pump stops due to insufficient
sunshine – 120 SECONDS
2. After full-tank float switch resets – 2 to 3
SECONDS
3. After low-water probe regains contact with
water 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.
4. Battery systems – after low voltage
disconnect point 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 immediately if
sufficient power is present.
Operating the Pump continued
Manual PS600 BADU Top 12