Here is the scoop on the unit you have which is similar to the one in my previous 2015 Four Winds 22e. Facing the control knobs, the right one controls a relative temperature, it is not precise like a thermostat. It serves to only cycle the compressor. The left one is either off, low fan, high fan, or cool. On the cool settings, the fan runs continuously. It is a simple AC, works like a window unit.
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