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- #71
- May 2, 2015
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Honestly 95% of what you said about mk2 went over my head...
Can you explain more about what you did with mk1? That sounded more like my level of skill...
Ok Trying to keep this to what do you really need to know verses all the tech details
A peltier based wine cooler does not have a compressor or any of the parts that a standard home refrigerator uses. Basically it uses a trick with electricity to transfer heat from inside a wine cooler to outside the wine cooler. By simply swapping the 2 wires that go to the peltier you can reverse the action so the heat outside is now transferred inside the incubator. The peltier chip itself is not efficient so it also produces its own heat which is normally blown out of the back of the cooler. That will now be blown into the cooler giving you a heater that capable of making 99.5F inside the cooler
Like all heater now all you have to do is add something to stop the heater from going above 99.5F so any controller can be added to turn the peltier on and off. The wiring is simple, Just take either wire that you reversed to the peltier and run that to the relay on the temp controller. Place the temp controller sensor inside the incubator and its ready to go.
If you post pictures of a wine cooler with the rear metal shield removed I can mark the wires to swap on the pictures and also draw a diagram of where to attach the temp controller. As the peltier and fans run off 12vdc the temp control can be 12vdc or 120vac. Get a temp controller that's easy to mount ebay has them cheap then you will only need to cut a hole or mount a box on top to hide all the wiring. I normally add one extra small 24vdc fan (40mm) inside in the top corner to mix the air. I wire this to one of the 12vdc fans inside. Putting 12v to a 24v fan will make the fan run slowly so it blends the air.
I hope this helps