I just want to run this past the experts before I put too much effort into the project.
I am setting up a small battery charging solar system that will power a 12vdc pump that will move pool water through a Fafco heat exchanger and back to the pool.
the pool is small and I will have a black walk-on cover to help heat.
I have 4 older 55W panels that I plan to wire in series parallel to charge the sla batteries. The panels are old and the stickers are gone so I will have to do some testing to see what they are capable of.
I have a 30A ebay charge controller that I hope will do the trick. It has contacts for "load" but I assume that will energize only when the panels are not producing?
I then plan to install a discharge protector for the batteries.
the pump motor will then take its power from the discharge protector. I plan on having a thermal switch mounted in the outlet of the Fafco to switch the pump on only when the temp is higher than the water in the pool.
Things I still need to determine:
-running current of the pump
-pv output in various conditions
-battery size
anything else?
I am setting up a small battery charging solar system that will power a 12vdc pump that will move pool water through a Fafco heat exchanger and back to the pool.
the pool is small and I will have a black walk-on cover to help heat.
I have 4 older 55W panels that I plan to wire in series parallel to charge the sla batteries. The panels are old and the stickers are gone so I will have to do some testing to see what they are capable of.
I have a 30A ebay charge controller that I hope will do the trick. It has contacts for "load" but I assume that will energize only when the panels are not producing?
I then plan to install a discharge protector for the batteries.
the pump motor will then take its power from the discharge protector. I plan on having a thermal switch mounted in the outlet of the Fafco to switch the pump on only when the temp is higher than the water in the pool.
Things I still need to determine:
-running current of the pump
-pv output in various conditions
-battery size
anything else?
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