Wunderdave wrote:Fridges don't have heating elements, they have cooling elements. There's no way you need a heater more than you need refrigeration. That controller you linked will work to control your fridge (cooling) though.
wheels wrote:What you do is to turn the fridge to it's maximum and then use an external thermostat to turn the fridge motor on and off to control the temperature.
HTH
Phil
wheels wrote:Sorry, I'm not explaining very well. By using an external thermostat, you can run the fridge at any temperature you want (up to room temperature). You set a temperature on the thermostat and it turns on the power to the fridge until the fridge has cooled to that temperature. It then turns the power off until the temperature has risen by a chosen amount that can also be programmed in to the thermostat.
By using this method, you can (say) set the thermostat setting to 11°C and the 'difference' setting to 2°C. The thermostat will send power to the fridge until it's cooled to 11°C and then turn the power off so that the fridge cannot get any colder. It'll keep the power off until the fridge has warmed by 2°C to 13°C, and then turn it back on to cool again. The thermostat also has a 'delay' setting that can be used to ensure that the fridge isn't 'cycled' on and off too quickly.
I hope that this makes it clearer.
Phil
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