Freddy wrote:Back up and run over me again? If everything is working properly, why would I need a dump zone? I thought they were only for solar panels. You can't shut the sun off and sometimes things will overheat. Other than that, I see no reason for a heat dump zone.....unless there's something I don't know (which is real possible! LOL)
Yes, Just like you can't shut the sun off, you can't shut the burning coal off either so the max temp is going to over shoot your max setting and you might want to dump the extra heat someplace.
you'll see there is a control on the VF3000 that puts out 24v and 110v to energize what ever you have hooked up to dump the extra heat.
I also have a hot water solar system, 2- 4x10 flat plate collectors and 120 gal tank. But I set mine up as a drain down system
when the max temp is reached (150*) the pump shuts off and all the water in the collectors drains back down into a tank.
The collectors are now dry and heat up to about 275* and at that point they are heat radiators. The excessive heat dosen't hurt them.
But if you allow the hot water tank to exceed 150* it will stress the welds and it will have a shorter life span.
since that solar tank costs over $1000.00 that short life would be very costly.
I would expect the same holds true for the welds in the VF3000, it probly shouldn't be allowed to get too hot if you want it to have a long life.