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> Four giant thermoelectric peltiers w/ heatsink & fan
Four giant thermoelectric peltiers w/ heatsink & fan
Four Giant ThermoElectric Peltiers with Heatsink & Fan in one lot!
These units each have TWO Supercool Peltiers
This is a Supercool (Sweden) brand Peltier unit, it was removed from industrial equipment. This is not a junky Chinese CPU Cooler, this was installed in an expensive machine. We powered it up and it got hot on the silver surface which measures 4 3/4" x 2 1/8" (55x120mm) and it is 1/2" thick. The cooling element is surrounded by 1/2" thick foam for insulation. The whole thing is mounted in a heat sink that measures 8 1/4" x 4 11/16 and it has a 3 5/8" fan on the side.
It appears this unit is set up to provide heat on it's surface and cool air through the fan. I took this unit apart and found TWO supercool brand peltier units inside, sandwiched between the metal plate and the heatsink. I flipped them over so the hot/cold sides were then reversed. I attached the wires to a battery and after a while this is what I had:
ICE. Lots of ice. Now, these are not set up this way but it was child's play to flip the peltiers over. I have had numerous emails from people saying it is only necessary to reverse the wires, but it was easier to unscrew three screws and flip them over than to unsolder the wires from the power board which DOES have polarity sensitive components on it. We tried reversing the wires and we got flames from the capacitor on that board.
The temperature indicated on our test unit. Ambient temp is 72.4 F. This is two units, one that I reversed and one that is as you will get it, to produce heat on the surface.
Now, your attention please: We have lots of these, you are going to get a unit that is as removed from the expensive industrial equipment these were in, not the one in the picture. These are all the same, but you are getting a completely unmodified and untampered/untested unit. We junked out the machines and these were a little too slick to junk. So here they are!
We are not warranting these, we have not tested them. But understand we have sold hundreds of these with no complaints from anyone, except for one guy who hooked up the power backwards and blew out his power control board with a loud snap and fire, which we tried too with the same result! So don't do that and you will not have any trouble.
This is operating on 12VDC 6A. P/N is DA-051-12-00-00-SN. According to the manufacturer that means Direct Air, 51 Watts Cooling, 12 VDC. 6A
Click on the graph below to see the manufacturers engineering manual. The drawings and documentation I have is HERE.
I realize this chart below is not working, it seems the supercool.se company is no longer on the internet. Too bad.
Ex =Example: At ambient 32 C and cooled space temperature 2 C (delta T = 30 C) the DA-075-24-02 (curve C) cools by 32% of its maximum effect, which gives Pc = 71 x 0.32 = 22.7 ( 10%)
