Ok so I caught up on reading. Here are my thoughts. I'll need a txv on the outside coils for sure. But I don't want the added power of the fan running the whole time until the outside coil txv shuts it down. So maybe a temp switch outside that does let the fan come on below 45F.
I can get another set of air coils to add to the ones I already have and have both with their own txv.
Problem is a was planning on the compressor and water coils to be in the greenhouse, that is on the other side of the house from the air coils..... ggrrrr.....
So what if I built a highly insulated box to house the water coils and the water pump with a small eletric heater and thermostat to keep it at 40F?
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