This is my current unit and my new therm. I'm not sure of the make of the a/c unit. I bought a honeywell fth7500d. It works with heat, cool and heat pumps. I'm full time in south fl and don't really need heat. The heat blower motor kicks on if you turn it on, but I don't have any propane to test if it works. I'm only concerned about the a/c cooling to work.
From what I've read I can just hook up the high or the low fan wire to the therm and only that one would work. I was researching and found I could wire both to a 3 way switch and then on to the therm if I wanted both speeds
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