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Two Giant ThermoElectric Peltiers with power supply This is a set of TWO Supercool (Sweden) brand Peltier units and a new 16A powersupply. These were removed from industrial equipment. This is not a junky chinese CPU Cooler, this was installed in an expensive machine. We powered one up and it got hot on the silver surface which measures 4 3/4" x 2 3/4" 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 childs 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! 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. The included power supply is from the same equipment, and supplies 16.7A at 12VDC, more than enough to operate these peltier units. Click on the graph below to see the manufacturers engineering manual. 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%) We are remarketers of surplus equipment, we cannot provide technical support on this sale. If you just drop by you may not be able to pick up your item if it is not ready for pickup. We have to get items from our warehouse personnel and are not prepared for dropins. Stated amount is for delivery in the continental USA only. Other locations will be more. We cannot accept personal or business checks on international purchases. In almost all cases all we did was plug it in and see if it looks like it works. Some items would require an entire engineering test lab to test thoroughly. As you can imagine we don't have that nor does a few hundred dollar item warrant it. If an item is expected to sell for only a few hundred dollars or less we do less thorough testing. If you want us to have an item thoroughly tested that might be available but it will not be free. On more valuable items we try to test more thoroughly when possible, but sometimes we can't test completely due to the complex technical nature of the item. We respond to all our emails, if you don't get a response within 24 hours Monday through Friday resend it. We are Recomp Group. 1704 S. Santa Fe, Santa Ana, CA 92705 Business Hours: 9:30-4:30 Monday-Thursday, 9:30-3:30 Friday, CLOSED WEEKENDS Phone (***) 542-3144 Fax (***) 542-3145 All Specs may have been obtained via the internet. Any testing performed by us is basic and noted in the description. We have no technical knowledge or expertise regarding this type of equipment. All items described as used, out of the box, or New out of the box may have some minor scratching and scuffing unless otherwise stated. (We do not proofread any ads submitted by members) |
Kate-Perez@desmoines-classifieds.com (Kate Perez) for more information. Your emails will be instantly forwarded to the poster's private address.
