hi all,
this is my first post.
I am changing an air conditioner from digital to analog (the circuit board failed). I can easily power the compressor and blower with relays, and the compressor relay with a thermostat.
But there is a freeze sensor I would like to use to interrupt the compressor. It is about 1k ohms at room temp, and maybe 3k at freezing temp. I need a circuit that will interrupt the primary on the compressor relay when this goes above a certain ohms. Needs to be adjustable so I can get it where it needs to be (35deg farenheight?)
The simpler the better.
Thanks
this is my first post.
I am changing an air conditioner from digital to analog (the circuit board failed). I can easily power the compressor and blower with relays, and the compressor relay with a thermostat.
But there is a freeze sensor I would like to use to interrupt the compressor. It is about 1k ohms at room temp, and maybe 3k at freezing temp. I need a circuit that will interrupt the primary on the compressor relay when this goes above a certain ohms. Needs to be adjustable so I can get it where it needs to be (35deg farenheight?)
The simpler the better.
Thanks