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DIY Thermoelectric Peltier Refrigeration
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<blockquote data-quote="Nightjar" data-source="post: 517352" data-attributes="member: 1414"><p>DD That's the one I bought, pics in earlier posts.</p><p>Have been wracking the brain how to switch the Peltier on/off.</p><p>Think I'm on a winner, good old eBay again, two units delivered to my mail box ($5.00)</p><p>Found the operating instructions using Google.</p><p>Just copy/paste heading into eBay search and you'll find them.</p><p></p><p><a href="https://www.herman-shop.com/PDF/thermostat%20w1209%20instruction.pdf" target="_blank">https://www.herman-shop.com/PDF/thermostat w1209 instruction.pdf</a></p><p></p><p>First thoughts are I set the Peltier up blowing through one of the vents directing cooler air over the workings of the Engel.</p><p>Just experimented in the shed setting the thermostat to 30C, held the sender between my fingers and the readout soon jumped to 30C and the Peltier powered up. Let go of the sender and the temp dropped to 27C (This is the norm for the Thermo, 3 below set temp. to prevent excessive energising) and the Peltier de-energised... (Ambient temp in my shed today is 21C</p><p>May set it up this way so if the ambient temperature rises to set temp while we are away prospecting the Peltier will kick in helping the fridge used as a freezer to maintain the low temps required to keep food safe.</p><p>Thinking thinking..</p></blockquote><p></p>
[QUOTE="Nightjar, post: 517352, member: 1414"] DD That's the one I bought, pics in earlier posts. Have been wracking the brain how to switch the Peltier on/off. Think I'm on a winner, good old eBay again, two units delivered to my mail box ($5.00) Found the operating instructions using Google. Just copy/paste heading into eBay search and you'll find them. [url]https://www.herman-shop.com/PDF/thermostat%20w1209%20instruction.pdf[/url] First thoughts are I set the Peltier up blowing through one of the vents directing cooler air over the workings of the Engel. Just experimented in the shed setting the thermostat to 30C, held the sender between my fingers and the readout soon jumped to 30C and the Peltier powered up. Let go of the sender and the temp dropped to 27C (This is the norm for the Thermo, 3 below set temp. to prevent excessive energising) and the Peltier de-energised... (Ambient temp in my shed today is 21C May set it up this way so if the ambient temperature rises to set temp while we are away prospecting the Peltier will kick in helping the fridge used as a freezer to maintain the low temps required to keep food safe. Thinking thinking.. [/QUOTE]
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Outdoor & Recreation
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DIY Thermoelectric Peltier Refrigeration
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